As filed with the Securities and Exchange Commission on August 23, 2023.
Registration No. 333-273860    
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
______________________________
Pre-Effective Amendment No. 1
to
Form S-3

REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933
______________________________
Enterprise Bancorp, Inc.
(Exact name of registrant as specified in its charter)
______________________________

Massachusetts
(State or other jurisdiction of incorporation or organization)
04-3308902
(I.R.S. Employer Identification Number)
______________________________

222 Merrimack Street
Lowell, Massachusetts 01852
(978) 459-9000
(Address, including zip code and telephone number, including area code, of registrant’s principal executive offices)
______________________________
Joseph R. Lussier
Executive Vice President, Chief Financial Officer and Treasurer
Enterprise Bancorp, Inc.
222 Merrimack Street
Lowell, Massachusetts 01852
(978) 459-9000
(Name, address, including zip code and telephone number, including area code, of agent for service)
______________________________
Copies to:
Peter G. Weinstock
Beth A. Whitaker
Hunton Andrews Kurth LLP
1445 Ross Avenue, Suite 3700
Dallas, Texas 75202
(214) 979-3000
(214) 880-0011 (facsimile)
______________________________
Approximate date of commencement of proposed sale to the public: From time to time after the effective date of this registration statement.
If the only securities being registered on this Form are being offered pursuant to dividend or interest reinvestment plans, please check the following box.
If any of the securities being registered on this Form are to be offered on a delayed or continuous basis pursuant to Rule 415 under the Securities Act of 1933, other than securities offered only in connection with dividend or interest reinvestment plans, check the following box.
If this Form is filed to register additional securities for an offering pursuant to Rule 462(b) under the Securities Act, please check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering.
If this Form is a post-effective amendment filed pursuant to Rule 462(c) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering.
If this Form is a registration statement pursuant to General Instruction I.D. or a post-effective amendment thereto that shall become effective upon filing with the Commission pursuant to Rule 462(e) under the Securities Act, check the following box.
If this Form is a post-effective amendment to a registration statement filed pursuant to General Instruction I.D. filed to register additional securities or additional classes of securities pursuant to Rule 413(b) under the Securities Act, check the following box.
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company” and “emerging growth company” in Rule 12b-2 of the Exchange Act. (Check one):
Large accelerated filerAccelerated filer
Non-accelerated filerSmaller reporting company
Emerging growth company
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 7(a)(2)(B) of the Securities Act. ☐

__________________




The registrant hereby amends this registration statement on such date or dates as may be necessary to delay its effective date until the registrant shall file a further amendment which specifically states that this registration statement shall thereafter become effective in accordance with Section 8(a) of the Securities Act of 1933, as amended (the “Securities Act”), or until the registration statement shall become effective on such dates as the Securities and Exchange Commission (the “SEC” or “Commission”), acting pursuant to said Section 8(a), may determine.





The information in this prospectus is not complete and may be changed. We may not sell these securities until the registration statement filed with the Securities and Exchange Commission is effective. This prospectus is not an offer to sell these securities and it is not soliciting an offer to buy these securities in any state where the offer or sale is not permitted.

PROSPECTUS

SUBJECT TO COMPLETION, DATED AUGUST 23, 2023

image_0.jpg
$100,000,000

Debt Securities
Common Stock
Preferred Stock
Depositary Shares
Subscription Rights
Warrants

Enterprise Bancorp, Inc. (“we,” “us,” “our” or “the Company”) may offer and sell, at any time and from time to time, in one or more offerings, together or separately, any combination of the securities described in this prospectus.
This prospectus describes some of the general terms that may apply to these securities and the general manner in which they may be offered. Each time that we offer and sell securities using this prospectus, we will provide a supplement to this prospectus that contains specific information about the securities and their terms and the manner in which we will offer them for sale. The prospectus supplement may also add or update information contained in this prospectus. This prospectus may not be used to sell securities unless accompanied by the applicable prospectus supplement. You should carefully read this prospectus and any supplement to this prospectus, as well as any documents we have incorporated into this prospectus by reference, before you invest in any of these securities. References herein to “prospectus supplement” are deemed to refer to any pricing supplement or free writing prospectus describing the specific pricing or other terms of the applicable offering that we prepare and distribute.
    We may offer and sell these securities to or through one or more underwriters, dealers and agents, or directly to purchasers, on a continuous or delayed basis. If an offering of securities involves any underwriters, dealers or agents, we will provide the names of any such underwriters, dealers or agents used in connection with the sale of any of these securities, as well as any fees, commissions or discounts we may pay to such underwriters, dealers or agents in connection with the sale of these securities, in the applicable prospectus supplement. The prospectus supplement for each offering of securities will describe in detail the plan of distribution for that offering. See the sections of this prospectus entitled “About This Prospectus” and “Plan of Distribution” for more information. Net proceeds from the sale of securities will be set forth in the applicable prospectus supplement.
Our common stock is listed for trading on the NASDAQ Global Select Market under the symbol “EBTC.” We have not yet determined whether any of the other securities that may be offered by this prospectus will be listed on any exchange. If we decide to do so, a prospectus supplement relating to such securities will identify the exchange or market on which they will be listed.
Our principal executive office is located at 222 Merrimack Street, Lowell, Massachusetts 01852, and our telephone number at that address is (978) 459-9000.
These securities are not savings accounts, deposits or other obligations of any of our bank or non-bank subsidiaries and are not insured by the Federal Deposit Insurance Corporation or any other governmental agency, nor are they obligations of, or guaranteed by, a bank or savings association.



Neither the Securities and Exchange Commission, nor any state securities commission, the Federal Deposit Insurance Corporation, the Board of Governors of the Federal Reserve System nor any other regulatory body has approved or disapproved of these securities or determined if this prospectus is truthful or complete. Any representation to the contrary is a criminal offense.
Investing in our securities involves risks. See “Risk Factors” beginning on page 9 of this prospectus and contained in our most recent Annual Report on Form 10-K and Quarterly Reports on Form 10-Q, which are incorporated herein by reference, as well as the risk factors included in, or incorporated by reference into, the applicable prospectus supplement, our periodic reports and other information that we file with the Securities and Exchange Commission, and carefully read and consider that information before buying our securities.
You should carefully read this prospectus together with the documents we incorporate by reference and the prospectus supplement before you invest in our securities.

The date of this prospectus is August 23, 2023.




TABLE OF CONTENTS

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ABOUT THIS PROSPECTUS
This prospectus is part of a registration statement on Form S-3 that we filed with the Securities and Exchange Commission (the “SEC”) using a “shelf” registration process. Under this registration statement, we may offer and sell, from time to time and in one or more offerings, on a continuous or delayed basis, any combination of the securities described in this prospectus for an aggregate offering price of up to $100,000,000.00, or the foreign currency equivalent thereof.
This prospectus provides you with a general description of the securities we may offer. Each time we sell securities, we will provide a prospectus supplement containing specific information about the terms of that offering. The prospectus supplement may include a discussion of any risk factors or other special considerations that apply to those securities. The prospectus supplement may also add, update or change the information contained or incorporated by reference in this prospectus. If there is any inconsistency between the information in this prospectus (including the information incorporated by reference herein) and information in any prospectus supplement, you should rely on the information in the applicable prospectus supplement. You should carefully read both this prospectus and the applicable prospectus supplement together with additional information described under the heading “Where You Can Find More Information” or incorporated herein by reference as described under the heading “Incorporation of Certain Information by Reference.”
You should rely only on the information contained in or incorporated by reference in this prospectus and in the applicable prospectus supplement when deciding whether to invest. We have not authorized anyone to give oral or written information about this offering, the Company, or the securities offered hereby that is different from the information included or incorporated by reference in this prospectus. If anyone provides you with different information, you should not rely on it. You should assume that the information contained in this prospectus is accurate only as of the date on the front cover of this prospectus. Our business, financial condition, results of operations and prospects may have changed since that date.
We are not making an offer to sell or soliciting an offer to buy these securities in any jurisdiction in which the offer or solicitation is not authorized or in which the person making the offer or solicitation is not qualified to do so or to anyone to whom it is unlawful to make the offer or solicitation.
Any of the securities described in this prospectus and in a prospectus supplement may be convertible or exchangeable into, or exercisable for, other securities that are described in this prospectus or will be described in a prospectus supplement, and may be issued separately, together or as part of a unit consisting of two or more securities, which may or may not be separate from one another. The securities offered hereby may include new or hybrid securities developed in the future that combine features of any of the securities described in this prospectus.
The registration statement that contains this prospectus, including the exhibits to the registration statement, also contains additional information about us and the securities offered under this prospectus. You can find the registration statement at the SEC’s website mentioned under the heading “Where You Can Find More Information.”
References in this prospectus to “the Company,” “we,” “us” and “our” are to Enterprise Bancorp, Inc. and its wholly-owned bank subsidiary, Enterprise Bank and Trust Company, unless the context otherwise requires. References in this prospectus to “the Bank” are to Enterprise Bank and Trust Company. In this prospectus, we sometimes refer to the debt securities, common stock, preferred stock, depositary shares and subscription rights we may offer as “offered securities.”

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INCORPORATION OF CERTAIN INFORMATION BY REFERENCE
The SEC allows us to incorporate by reference the information that we file with it into this prospectus, which means that we can disclose important information to you by referring you to other documents. This prospectus incorporates by reference the documents listed below that we have previously filed with the SEC (SEC File No. 001-33912):
our Annual Report on Form 10-K for the year ended December 31, 2022, filed with the SEC on March 8, 2023 (the “2022 Form 10-K”);
our Quarterly Reports on Form 10-Q for the quarter ended March 31, 2023, filed with the SEC on May 9, 2029, and for the quarter ended June 30, 2023, filed with the SEC on August 8, 2023;
our Current Reports on Form 8-K filed on January 17, 2023, March 24, 2023, April 18, 2023, April 19, 2023, and May 3, 2023;
our Definitive Proxy Statement on Schedule 14A, filed with the SEC on March 31, 2023 (solely to the extent incorporated by reference into Part III of our Annual Report on Form 10-K for the year ended December 31, 2022);
the description of our common stock, par value $0.01 per share, contained in Exhibit 4.3 of the 2022 Form 10-K, and any other amendment or report filed for the purposes of updating such description; and
the description of our preferred share repurchase rights registered under Section 12 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), contained in Exhibit 4.4 of the 2022 Form 10-K, and any other amendment or report filed for the purposes of updating such description.
We incorporate by reference any additional documents that we may file with the SEC under Sections 13(a), 13(c), 14 or 15(d) of the Exchange Act (other than those furnished pursuant to Item 2.02 or Item 7.01 of Form 8-K or other information “furnished” to the SEC), from the date of the registration statement of which this prospectus is a part until the termination of the offering of the securities offered hereby. These documents may include annual, quarterly and current reports, as well as proxy statements. Any material that we later file with the SEC will automatically update and supersede, where appropriate, the information previously filed with the SEC. These documents are available to you without charge. See “Where You Can Find More Information.”
Any statement contained in a document incorporated or deemed to be incorporated herein by reference shall be deemed to be modified or superseded to the extent that a statement contained herein or in any other subsequently filed document that also is or is deemed to be incorporated herein by reference modifies or supersedes such statement in such document.





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WHERE YOU CAN FIND MORE INFORMATION
We are subject to the information requirements of the Exchange Act and file with the SEC annual, quarterly and current reports, proxy statements, information statements and other information. Our SEC filings are available to the public at the SEC’s web site at www.sec.gov or on our Internet web site, https://enterprisebancorp.q4ir.com/investor-relations/corporate-profile/default.aspx. The reference to our web site is not intended to be an active link and the information on our web site is not, and you must not consider the information to be, a part of this prospectus and is not incorporated by reference herein.
We have filed with the SEC a registration statement on Form S-3 under the Securities Act, relating to the securities covered by this prospectus. The registration statement, including the attached exhibits and schedules, contains additional relevant information about us and the securities. This prospectus does not contain all of the information set forth in the registration statement. Whenever a reference is made in this prospectus to a contract or other document, the reference is only a summary and you should refer to the exhibits that form a part of the registration statement for a copy of the contract or other document. You can get a copy of the registration statement and the documents referred to above under “Incorporation of Certain Information by Reference” from the SEC web site or our web site listed above. You can also obtain these documents from us, without charge (other than exhibits, unless the exhibits are specifically incorporated by reference), upon written or oral request at the following address and telephone number:
222 Merrimack Street
Lowell, Massachusetts 01852
(978) 459-9000
Attention: Corporate Secretary





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SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS
    This prospectus and the documents incorporated herein by reference contain statements that are “forward-looking statements” within the meaning of Section 27A of the Securities Act, and Section 21E of the Exchange Act. Forward-looking statements speak only as of the date they are made, may relate to, among other matters, the financial condition, results of operations, plans, objectives, future performance, and business of the Company. Forward-looking statements are based on many assumptions and estimates and are not guarantees of future performance. Our actual results may differ materially from those anticipated in any forward-looking statements, as they will depend on many factors about which we are unsure, including many factors which are beyond our control. The words “may,” “would,” “could,” “should,” “will,” “expect,” “anticipate,” “predict,” “project,” “potential,” “continue,” “assume,” “believe,” “intend,” “plan,” “forecast,” “goal,” and “estimate,” as well as similar expressions, are meant to identify such forward-looking statements. When considering forward-looking statements, you should keep in mind the risk factors and other cautionary statements described in the “Risk Factors” section of this prospectus.
There are or may be important factors that could cause our actual results to differ materially from those indicated in these forward-looking statements, including, but not limited to, the following:
potential recession in the United States and our market areas;
the impacts related to or resulting from recent bank failures and any continuation of the recent uncertainty in the banking industry, including the associated impact to the Company and other financial institutions of any regulatory changes or other mitigation efforts taken by government agencies in response thereto;
failure of risk management controls and procedures;
the adequacy of the allowance for credit losses;
risk specific to commercial loans and borrowers;
changes in the business cycle and downturns in the local, regional, or national economies, including changes in consumer spending and deterioration in the local real estate market, could negatively impact credit and/or asset quality and result in credit losses and increases in the Company's allowance for credit losses;
the persistence of the current inflationary environment in the United States and our market areas, and its impact on market interest rates, the economy and credit quality;
deterioration of capital markets, which could adversely affect the value or credit quality of the Company's assets and the availability of funding sources necessary to meet the Company's liquidity needs;
changes in market interest rates could negatively impact the pricing of our loans and deposits and decrease our net interest income or net interest margin;
increases in market interest rates could negatively impact bond market values and result in a lower net book value;
our ability to successfully manage the current rising market interest-rate environment, our credit risk and the level of future non-performing assets and charge-offs;
potential decreases or growth of assets, deposits, future non-interest expenditures and non-interest income;
inability to maintain adequate liquidity;
the inability to raise the necessary capital to fund our operations or to meet minimum regulatory capital levels would restrict our business and operations;
our ability to keep pace with technological change or difficulties when implementing new technologies;
technology-related risk, including technological changes and technology service interruptions or failure could adversely impact the Company's operations and increase technology-related expenditures;
cybersecurity risk including security breaches and identity theft could impact the Company's reputation, increase regulatory oversight, and impact the financial results of the Company;
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increasing competition from larger regional and out-of-state banking organizations as well as non-bank providers of various financial services could adversely affect the Company's competitive position within its market area and reduce demand for the Company's products and services;
our ability to retain and increase our aggregate assets under management;
our ability to enter new markets successfully and capitalize on growth opportunities, including the receipt of required regulatory approvals;
damage to our reputation in the markets we serve;
risks associated with fraudulent, negligent, or other acts by our customers, employees or vendors;
exposure to legal claims and litigation;
our ability to maintain an effective system of disclosure controls and procedures and internal control over financial reporting;
inability to attract, hire and retain qualified management personnel;
recent and future changes in laws and regulations that apply to the Company's business and operations, and any additional regulations, or repeals that may be forthcoming as a result thereof, which could cause the Company to incur additional costs and adversely affect the Company's business environment, operations and financial results;
changes in tariffs and trade barriers;
our ability to navigate the uncertain impacts of quantitative tightening and current and future governmental monetary and fiscal policies, including the current and future policies of the Board of Governors of the Federal Reserve System (the “Federal Reserve Board”);
our ability to comply with supervisory actions by federal and state banking agencies;
changes in the scope and cost of Federal Deposit Insurance Corporation (the “FDIC”) insurance and other coverage;
changes in accounting and/or auditing standards, policies and practices, as may be adopted or established by the regulatory agencies, FASB, or the Public Company Accounting Oversight Board could negatively impact the Company’s financial results; and
systemic risks associated with the soundness of other financial institutions.
    Other factors not identified above, including those that are incorporated by reference under “Risk Factors” in this prospectus and may be described in any prospectus supplement and in the “Risk Factors” and other sections of the documents that we incorporate by reference into this prospectus, including our Annual Reports on Form 10-K and our Quarterly Reports on Form 10-Q and in our other reports filed with the SEC, may also cause actual results to differ materially from those described in our forward-looking statements. Most of these factors are difficult to anticipate, are generally beyond our control and may prove to be inaccurate. You should consider these factors in connection with considering any forward-looking statements.
    All forward-looking statements, expressed or implied, included in this prospectus, any applicable prospectus supplement or in a document incorporated by reference herein or therein are expressly qualified in their entirety by these cautionary statements. These cautionary statements should also be considered in connection with any subsequent written or oral forward-looking statements that we or persons acting on our behalf may issue. You should not put undue reliance on any forward-looking statements.
    Forward-looking statements speak only as of the date they were made. Except as otherwise required by applicable law, we disclaim any duty to update any forward-looking statements, all of which are expressly qualified by the statements in this section, to reflect new information obtained or events or circumstances that occur after the date any such forward-looking statement is made.
6


ABOUT ENTERPRISE BANCORP, INC.
Overview
Enterprise Bancorp, Inc. (the “Company,” “Enterprise,” “us,” “we,” or “our”) is a Massachusetts corporation organized in 1996, which operates as the parent holding company of Enterprise Bank and Trust Company, commonly referred to as Enterprise Bank (the “Bank”), a community-focused commercial bank. Substantially all of the Company’s operations are conducted through the Bank and its subsidiaries. The Bank, a Massachusetts trust company and state chartered commercial bank that commenced banking operations in 1989, has five wholly owned subsidiaries that are included in the Company’s consolidated financial statements:
Three Massachusetts security corporations, Enterprise Security Corporation (2005), Enterprise Security Corporation II (2007) and Enterprise Security Corporation III (2007), which hold various types of qualifying securities. The security corporations are limited to conducting securities investment activities that the Bank itself would be allowed to conduct under applicable laws;
Enterprise Wealth Services, LLC, organized in 2000 in the State of Delaware for the purpose of offering non-deposit investment products and services, under the name of “Enterprise Wealth Services;” and
Enterprise Insurance Services, LLC, organized in 2000 in the State of Delaware for the purpose of engaging in insurance sales activities.
Our headquarters are located at 222 Merrimack Street in Lowell, Massachusetts. Our telephone number is (978) 459-9000. Our Internet website address is www.enterprisebanking.com. The information contained in, or that can be accessed through, our website is not, and shall not be deemed to be, a part of, or incorporated into, this prospectus or any prospectus supplement.
Market Area
The Company's primary market area is the Northern Middlesex, Northern Essex, and Northern Worcester counties of Massachusetts and the Southern Hillsborough and Southern Rockingham counties in New Hampshire. Enterprise has 27 full-service branches located in the Massachusetts communities of Acton, Andover, Billerica (2), Chelmsford (2), Dracut, Fitchburg, Lawrence, Leominster, Lexington, Lowell (2), Methuen, North Andover, Tewksbury (2), Tyngsborough and Westford and in the New Hampshire communities of Derry, Hudson, Nashua (2), Pelham, Londonderry, Salem, and Windham.
Management actively seeks to strengthen the Company's market position by capitalizing on opportunities to grow all business lines and through the continued pursuit of organic growth and strategic expansion within existing and into neighboring geographic markets.
Primary Lines of Business
The Company principally is engaged in the business of gathering deposits from the general public and investing primarily in loans and investment securities. Through the Bank and its subsidiaries, the Company offers a range of commercial, residential and consumer loan products, deposit products and cash management services, as well as wealth management and wealth services.
The integrated branch network serves all product channels with knowledgeable service providers and state-of-the-art facilities. The Bank also offers various digital banking capabilities via online and mobile platforms. Management continually examines new products and technologies in order to maintain a highly competitive mix of offerings and state-of-the-art delivery channels in order to tailor product lines to customers' needs. These products, services and delivery channels are outlined below.
The Company's business is not dependent on one, or a few customers, nor upon a particular industry, the loss of which would have a material adverse impact on the financial condition or operations of the Company.    
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RISK FACTORS
An investment in our securities involves certain risks. Before making an investment decision, you should carefully read and consider the risk factors set forth in our most recent Annual Report on Form 10-K under the heading “Risk Factors,” as well as any updated or additional disclosure about risk factors included in any of our Quarterly Reports on Form 10-Q, Current Reports on Form 8-K or other filings that we have made with the SEC since the date of the latest Annual Report on Form 10-K that are incorporated by reference in this prospectus. You should also carefully consider the risks and other information that may be contained in, or incorporated by reference into, any prospectus supplement relating to specific offerings of securities under the heading “Risk Factors.”
Additional risks and uncertainties of which we are not aware or that we believe are not material at the time could also materially and adversely affect our business, financial condition, results of operations or liquidity. In any case, the value of the securities offered by means of this prospectus and any applicable prospectus supplement could decline and you could lose all or part of your investment. See “Where You Can Find More Information” for information about how to obtain a copy of these documents.




8


USE OF PROCEEDS
Unless otherwise indicated in the applicable prospectus supplement, we expect to use the net proceeds from the sale of offered securities by us for general corporate purposes, which may include, among other things, investments in or advances to the Bank, working capital, capital expenditures, stock repurchases, debt repayment or the financing of possible acquisitions.
The precise amounts and the timing of our use of the net proceeds will depend upon market conditions, our subsidiary’s funding requirements, the availability of other funds and other factors. Until we use the net proceeds from an offering, we may place the net proceeds in temporary investments or hold the net proceeds in deposit accounts at the Bank or another depository institution. We cannot predict whether the proceeds invested will yield a favorable return. We may, on a recurrent basis, engage in additional financings as the need arises to finance our corporate strategies, to fund our subsidiaries, to finance acquisitions or otherwise.
The prospectus supplement with respect to an offering of offered securities may identify different or additional uses for the proceeds of that offering.

9


THE SECURITIES WE MAY OFFER
The descriptions of the offered securities contained in this prospectus, together with the applicable prospectus supplements, summarize certain material terms and provisions of the various types of securities that we may offer. The particular material terms of the securities offered by a prospectus supplement, to the extent not described in this prospectus, will be described in that prospectus supplement. If indicated in the applicable prospectus supplement, the terms of the offered securities may differ from the terms summarized below. The prospectus supplement will also contain, where applicable, material U.S. federal income tax considerations relating to the offered securities, and will contain information regarding the securities exchange, if any, on which the offered securities will be listed. The descriptions of our securities being offered appearing herein and in the applicable prospectus supplement do not contain all of the information that you may find useful or that may be important to you. You should refer to the provisions of the actual documents that govern those securities and whose terms are summarized herein and in the applicable prospectus supplement, because those documents, and not the summaries, define your rights as holders of the relevant securities. If any particular terms of a security described in the applicable prospectus supplement differ from any of the terms described in this prospectus, then the terms described in this prospectus will be deemed superseded by the terms set forth in that prospectus supplement. For more information, please review the forms of these documents, which are or will be filed with the SEC and will be available as described under the heading “Where You Can Find More Information” above.
We may issue securities in book-entry form through one or more depositaries, such as The Depository Trust Company (“DTC”), Euroclear or Clearstream, named in the applicable prospectus supplement. Each sale of a security in book-entry form will settle in immediately available funds through the applicable depositary, unless otherwise stated. We will issue the securities in registered form, without coupons, although we may issue the securities in bearer form if so specified in the applicable prospectus supplement. If any securities are to be listed or quoted on a securities exchange or quotation system, the applicable prospectus supplement will say so.
10


DESCRIPTION OF DEBT SECURITIES
The following description and any description in a prospectus supplement is a summary only and is subject to, and qualified in its entirety by reference to the terms and provisions of the indentures and any supplemental indentures that we file with the SEC in connection with an issuance of any series of debt securities. You should read all of the provisions of the indentures, including the definitions of certain terms, as well as any supplemental indentures that we file with the SEC in connection with the issuance of any series of debt securities. These summaries set forth certain general terms and provisions of the securities to which any prospectus supplement may relate. The specific terms and provisions of a series of debt securities and the extent to which the general terms and provisions may also apply to a particular series of debt securities will be described in the applicable prospectus supplement.
General
We may issue from time to time in one or more series senior debt securities and subordinated debt securities, which in each case will be unsecured, direct, general obligations of the Company. For purposes of the descriptions under this heading “Description of Debt Securities,” we may refer to the senior debt securities and the subordinated debt securities collectively as the “debt securities.”
We will issue senior debt securities under a senior debt indenture and issue subordinated debt securities under a subordinated debt indenture. We refer to the senior debt indenture or subordinated debt indenture, together with any applicable supplemental indentures thereto, in this prospectus as an “indenture” and collectively as the “indentures.” A copy of the form of each indenture has been filed with the SEC as an exhibit to the registration statement that includes this prospectus. The indentures permit one or more series of senior debt securities or subordinated debt securities, as the case may be, to be established and issued thereunder. Any such series of senior debt securities or subordinated debt securities and their terms and conditions will be established by means of the adoption of a supplemental indenture, the adoption of a resolution of our board of directors or the adoption of a resolution of our board of directors and the action of certain officers of the Company acting pursuant to authority delegated to them by such resolution of the board and evidenced by an officers’ certificate setting forth the terms and conditions of the series of debt securities established by that resolution and the action of such authorized officers. Generally, multiple series of debt securities will vary from one another with regard to the rate at which interest accrues on such debt securities and the term of such debt securities, and the senior debt securities and subordinated debt securities will vary from one another with regard to the priority of payment.
Except as set forth in the indentures and described in the prospectus supplements, the indentures do not limit the amount of senior debt securities or subordinated debt securities we may issue under the indentures. We are not required to issue all of the debt securities of one series at the same time and, unless otherwise provided in an indenture and described in a prospectus supplement, we may, from time to time, issue additional debt securities under that series without the consent of the holders of the outstanding debt securities of that series. Additional debt securities issued in this manner will have the same terms and conditions as the outstanding debt securities of that series, except for their original issue date and issue price, and will be consolidated with, and form a single series with, the previously outstanding debt securities of that series. In certain instances, additional debt securities of a series sold may be issued with a different CUSIP number from that assigned to previously issued debt securities of that issue.
The indentures will meet the requirements of the Trust Indenture Act of 1939, as amended (the “Trust Indenture Act”), and will be qualified under and governed by the Trust Indenture Act.
We will file a copy of each supplemental indenture establishing a series of debt securities and setting the respective series’ terms and conditions with the SEC in connection with the offer and sale of the first debt securities of such series to be offered and sold and will file the form of debt security representing the debt securities of such series with the SEC in connection with the offering of such debt securities. Whenever we refer in this prospectus or in any prospectus supplement to particular sections or defined terms of an indenture, those sections or defined terms are incorporated by reference in this prospectus or in the prospectus supplement, as applicable. You should refer to the provisions of the indentures for provisions that may be important to you.
Terms and Conditions of Debt Securities to be Described in the Prospectus Supplement
The prospectus supplement relating to any debt securities of a series that we may offer will set forth the price or prices at which the debt securities will be offered to the public and the specific terms and conditions of the debt securities of that series to the extent such terms and conditions are not described in this prospectus. The prospectus supplement will set forth the aggregate principal amount of the debt securities of a series being offered by means of such prospectus supplement and the price(s) (expressed as a percentage of the principal amount) at
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which the debt securities will be offered and sold to the public. Each series of debt securities will be established and its terms and conditions set by a supplemental indenture. These terms and conditions of the debt securities may include, without limitation, the following:
the title and amount of the series of the debt securities and whether they are senior debt securities or subordinated debt securities;
any limit on the aggregate principal amount of the debt securities of such series that may be issued;
if other than the aggregate principal amount of those debt securities, the portion of the principal amount payable upon declaration of acceleration of the maturity of the debt securities of the series;
the maturity date or dates, or the method for determining the maturity date or dates, on which the principal of the debt securities of the series will be payable and any rights of extension;
the rate or rates, which may be fixed or variable, or the method of determining the rate or rates, at which the debt securities of the series will bear interest, if any;
the date or dates from which any interest will accrue on the debt securities of the series, the date or dates on which accrued interest will be payable and the regular related record dates for the payment of accrued interest;
the place or places where payments of principal, interest or premium, if any, will be payable, where the debt securities of the series may be surrendered for registration of transfer or exchange, and where notices or demands to or upon us may be served;
the period or periods within which, the price or prices at which, and the other terms and conditions upon which, the debt securities of the series may be redeemed, in whole or in part, at our option, if we are to have such an option;
with respect to our subordinated debt securities, the terms of the subordination of those debt securities in the right of payment to our senior indebtedness;
prepayment rights, if any, applicable to the debt securities of the series and any premium payable in connection with any such prepayment;
our obligation, if any, to redeem, repay or purchase the debt securities of the series pursuant to any sinking fund or analogous provision or at the option of a holder of the debt securities, and the period or periods within which, or the date and dates on which, the price or prices at which, and the other terms and conditions upon which, the debt securities will be redeemed, repaid or purchased, in whole or in part, pursuant to that obligation;
whether the amount of payments of principal of and premium, if any, or interest, if any, on the debt securities of the series may be determined with reference to an index, formula or other method, and the manner in which the amounts are to be determined;
affirmative, negative and, in the case of our senior debt securities, financial covenants applicable with respect to the debt securities of the series;
any additions to, modifications of, or deletions from the terms of the debt securities of the series with respect to events of default, amendments, merger, consolidation and sale or covenants set forth in the indenture;
whether the debt securities of the series will be issued in certificated or book-entry form;
the denomination of the debt securities of the series, if other than $1,000 and any integral multiple thereof;
if other than U.S. currency, the currency or currency units in which principal, premium, if any, or interest will be payable, whether we or a holder may elect payment to be made in a different currency and the designation of the original currency determination agent; 
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if the debt securities of the series will be initially issuable in global form, the depository or its nominee with respect to the debt securities and the circumstances under which the global security may be registered for transfer or exchange in the name of a person other than the depository or its nominee;
the conditions upon which definitive debt securities of the series will be issued to beneficial owners;
the applicability, if any, of the discharge, defeasance and covenant defeasance provisions of the indenture to the debt securities of the series and any additional or different terms on which such debt securities may be discharged or defeased;
whether the debt securities of the series can be converted into or exchanged for other securities of the Company, and the related terms and conditions;
in the case of our subordinated debt securities, provisions relating to any modification of the subordination provisions of the subordinated debt securities of the series, which are described elsewhere in this prospectus;
whether the debt securities of the series will be sold as part of units consisting of debt securities, common stock, preferred stock, depositary shares and/or warrants;
any trustee, depositary, authenticating agent, paying agent, transfer agent, registrar or other agent with respect to the debt securities of the series; and
any other terms of the debt securities of the series not inconsistent with the provisions of its applicable indenture.
Unless otherwise specified in the applicable prospectus supplement relating to the debt securities of a particular series, the debt securities will not be listed on any securities exchange.
We may offer and sell our debt securities at a substantial discount below their stated principal amount. The debt securities sold on that basis may be original issue discount (“OID”) securities, which means that less than the entire principal amount of the original issue discount securities will be payable upon declaration of acceleration of their maturity. Special federal income tax, accounting and other considerations applicable to OID securities or relating to certain other kinds of securities that may be offered including securities linked to an index, will be described in the applicable prospectus supplement.
For purposes of the descriptions under this “Description of Debt Securities,” “subsidiary” means a corporation, a partnership, business or statutory trust, or a limited liability company a majority of the outstanding voting equity securities or a majority of the voting membership or partnership interests or beneficial interests in a trust, as the case may be (collectively, referred to as “voting equity securities”), of which is owned or controlled, directly or indirectly, by us or by one or more of our other subsidiaries. For the purposes of this definition, “voting equity securities” means securities having voting power for the election of directors, managers, managing partners or trustees, as the case may be, whether at all times or only so long as no senior class of stock has voting power by reason of any contingency.
Ranking; Holding Company Structure
Senior Debt Securities
Except as otherwise provided in a supplemental indenture or prospectus supplement, the senior debt securities of a series that we issue will be unsecured and will rank equally in right of payment of the principal of and premium, if any, and interest on such senior debt securities with all of our other existing and future unsecured and unsubordinated debt, including the senior debt securities of any other series, and rank senior in right of payment to any subordinated debt.
Subordinated Debt Securities
Except as otherwise provided in a supplemental indenture or prospectus supplement, subordinated debt securities will be unsecured and will be subordinated in right of payment to the prior payment in full of all of our senior debt, including senior debt securities. We will state in the applicable prospectus supplement relating to any
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subordinated debt securities the subordination terms of the securities as well as the aggregate amount of outstanding debt, as of the most recent practicable date, that by its terms would be senior to those subordinated debt securities.
Structural Subordination
The debt securities will be the exclusive obligation of Enterprise Bancorp, Inc. Because the Company is a holding company, our cash flows and consequent ability to service our obligations, including both our senior debt securities and subordinated debt securities, are dependent on dividends, distributions and other payments of earnings and other funds by our subsidiaries, particularly the Bank, to us. The payment of dividends and other distributions by our subsidiaries is contingent on their earnings and is subject to the requirements of federal banking regulations and other restrictions. For example, various banking laws applicable to the Bank limit the payment of dividends and other distributions by the Bank to us, and may, therefore, limit our ability to pay accrued interest owing on our outstanding senior debt securities and subordinated debt securities on any interest payment date or the principal of such senior debt securities and subordinated debt securities at their maturity. In addition, the debt securities will be structurally subordinated to all indebtedness and other liabilities of our subsidiaries, because any right of the Company to receive any assets of its subsidiaries upon their liquidation or reorganization, and the consequent right of the holders of the debt securities to participate in those assets, will be effectively subordinated to the claims of that subsidiary’s secured and unsecured creditors. If the Company itself is recognized as a creditor of that subsidiary, our claims would still be subordinate to any security interest in the assets of that subsidiary and any indebtedness of that subsidiary senior to that held by the Company. Claims from creditors (other than us) on our subsidiaries may include long-term and medium-term debt and substantial obligations related to deposit liabilities, federal funds purchased, securities sold under repurchase agreements, other short-term borrowings and trade payables. Any capital loans that we make to the Bank would be subordinate in right of payment to deposits and to other indebtedness of the Bank.
Conversion or Exchange of Debt Securities
The applicable prospectus supplement will describe the terms, if any, on which a series of debt securities may be converted into or exchanged for other of our securities. These terms will include whether conversion or exchange will be mandatory, at our option or at the option of the holder. We will also describe in the applicable prospectus supplement relating to any such convertible or exchangeable debt securities how we will calculate the amount or number of our other securities that holders of debt securities would receive if they were to convert or exchange their debt securities, the conversion price or exchange ratio and other terms related to conversion or exchange and any anti-dilution protections.
Redemption and Repurchase of Debt Securities
We may redeem the debt securities, in whole or in part, at the prescribed redemption price, at the times and on the terms described in the applicable prospectus supplement. In addition, the debt securities may be subject to mandatory redemption pursuant to a sinking fund or otherwise, or may be subject to repurchase by us at the option of the holders, in each case, upon the terms described in the applicable prospectus supplement.
Payment and Paying and Transfer Agent
We will make all payments of principal of and premium, if any, and interest on the debt securities in the manner, at the places and subject to the restrictions set forth in the applicable indenture, the debt securities and applicable prospectus supplement. At our option, we may pay interest by check mailed to the address of the person entitled to the interest payment as it appears in the register for the applicable debt securities or by wire transfer of funds to that person at an account maintained within the United States.
Under the terms of the indentures, we and the trustee will treat the registered holder of such debt securities (i.e., DTC (or its nominee)) as the owner thereof for all purposes, including the right to receive payments and for all other purposes. Consequently, neither we nor the trustee or any of our respective agents has or will have any responsibility or liability for:
any aspects of the records of DTC or any direct or indirect participant therein relating to or payments made on account of any such debt securities, any such payments made by DTC or any direct or indirect participant therein, or maintaining, supervising or reviewing the records of DTC or any direct or indirect participant therein relating to or payments made on account of any such debt securities; or
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DTC or any direct or indirect participant therein. Payments by participants to the beneficial owners of our debt securities held through participants are the responsibility of such participants, as is now the case with securities held for the accounts of customers registered in “street name.”
Same-Day Settlement
The debt securities will trade in the same-day funds settlement system in the United States until maturity. Purchases of debt securities in secondary market trading must be settled in immediately available funds.
Denomination, Registration and Transfer
Unless otherwise specified in the applicable prospectus supplement, we will issue the debt securities of a series in denominations of $1,000 and any integral multiples thereof.
Subject to limitations imposed upon debt securities issued in book-entry form, the holder may exchange debt securities of any series for other debt securities of the same series and of a like aggregate principal amount and tenor but in different, authorized denominations upon surrender of the debt securities at the corporate trust office of the applicable trustee. In addition, subject to limitations imposed upon debt securities issued in book-entry form, the holder may surrender debt securities of any series for registration of transfer or exchange at the corporate trust office of the applicable trustee. Every debt security surrendered for registration of transfer or exchange must be duly endorsed or accompanied by a written instrument of transfer. No service charge will be imposed for any registration of transfer or exchange, redemption or conversion of any debt securities, but we may require payment of a sum sufficient to cover any tax or other governmental charge payable in connection with any registration of transfer or exchange of any debt securities.
Global Securities
We may issue the debt securities of a series in whole or in part in the form of one or more global securities to be deposited with, or on behalf of, a depository or with a nominee for a depository identified in the applicable prospectus supplement relating to that series. We will issue global securities in registered form and in either temporary or permanent form. The specific terms of the depository arrangement with respect to a series of debt securities will be described in the prospectus supplement relating to that series.
Our obligations with respect to the debt securities of any series, as well as the obligations of the applicable trustee with respect to the debt securities of such series, run only to persons who are registered holders of debt securities. For example, once we make payment to the registered holder, we have no further responsibility for that payment even if the recipient is legally required to pass the payment along to an individual investor but fails to do so. As an indirect holder, an investor’s rights relating to a global security will be governed by the account rules of the investor’s financial institution and of the depositary and/or participant of the depositary, as well as general laws relating to transfers of debt securities.
The prospectus supplement for a series of debt securities will list the special situations, if any, in which a global security will be exchanged for physical certificates representing debt securities represented by the global securities. After that exchange, the investor may choose whether to hold debt securities directly or indirectly through an account at the investor’s bank or brokerage firm. In that event, investors must consult their banks or brokers to find out how to have their interests in debt securities transferred to their own names so that they may become direct holders. When a global security is exchanged for physical certificates, the depositary, and not us or one of the trustees, is responsible for deciding the names of the institutions that will be the initial direct holders of the debt securities represented by the global security.
Merger, Consolidation or Sale of Assets
We will not be permitted to consolidate with or merge into any other entity, or sell, lease, transfer or convey all or substantially all of our properties and assets, either in one transaction or a series of transactions, to any other entity and no other entity will consolidate with or merge into us, or sell, lease, transfer or convey all or substantially all of its properties and assets to us unless:
(1) either:
the Company is the continuing entity; or
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the successor entity, if other than the Company, formed by or resulting from any consolidation or merger, or which has received the transfer of our properties and assets, expressly assumes payment of the principal of, and premium, if any, and interest on all of the outstanding debt securities and the due and punctual performance and observance of all of the covenants and conditions contained in the applicable indenture; and
(2) immediately after giving effect to the transaction and treating any indebtedness that becomes our obligation as a result of that transaction as having been incurred by us at the time of the transaction, no event of default under the applicable indenture, and no event which, after notice, the lapse of time or both, would become an event of default will have occurred and be continuing.
The conditions described in (1) and (2) above would not apply to the direct or indirect transfer of the stock, assets or liabilities of any of our subsidiaries to another of our direct or indirect subsidiaries.
Except as provided in this prospectus or as may otherwise be provided in the applicable prospectus supplement, the applicable indenture and the terms of the debt securities will not contain any event risk or similar covenants that are intended to afford protection to holders of any debt securities in the event of a merger, a highly leveraged transaction or other significant corporate event involving us or our subsidiaries, whether or not resulting in a change of control, which may adversely affect holders of the debt securities.
Additional Restrictive Covenants
Any covenants of the Company in addition to, and/or modifications to, the covenant relating to mergers, consolidations and sales of assets described above with respect to any series of debt securities, including any covenants relating to limitations on incurrence of indebtedness or incurrence of liens or any affirmative covenants, other negative covenants or financial covenants, will be set forth in the indenture and described in the prospectus supplement relating to that series of debt securities.
Unless the applicable prospectus supplement indicates otherwise, the indentures do not contain a restrictive covenant on the incurrence of debt of the type described above, nor do they contain any other provision which restricts us from, among other things:
incurring or becoming liable on any secured or unsecured senior or subordinated indebtedness or general obligations; or
paying dividends or making other distributions on our capital stock; or
purchasing or redeeming our capital stock; or
creating any liens on our property for any purpose.
Events of Default; Right to Accelerate
Unless otherwise indicated in the applicable prospectus supplement, the following are events of default under the senior debt indenture with respect to the senior debt securities and under the subordinated debt indenture with respect to the subordinated debt securities:
failure to pay any installment of interest payable on any senior debt security of the series and the continuance of such failure for a period of 30 days;
failure to pay principal of, or premium, if any, on, any senior debt security of the series when due, whether at maturity, upon redemption, by declaration of acceleration of maturity or otherwise;
default in making any sinking fund payment when due, for any senior debt security of the series;
failure to deliver the required securities, together with cash in lieu of fractional securities, or other rights upon an appropriate conversion or exchange election by any holder of convertible securities, and continuance of such default for a period of 10 days;
default in the performance or breach of any other covenant or warranty of the Company contained in the senior debt indenture, other than a covenant added to the senior debt indenture solely for the benefit
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of any other series of senior debt securities issued under that senior debt indenture, continuing for 90 days after written notice as provided in the senior debt indenture;
specified events of bankruptcy, insolvency or reorganization; or
such other events of default as are described in the prospectus supplement relating to any series of senior debt securities being offered for sale.
Unless otherwise indicated in the applicable prospectus supplement, if an event of default occurs and is continuing because we experience specified events of bankruptcy, insolvency or reorganization, the aggregate principal amount of the debt securities will be automatically accelerated and become immediately due and payable, without any action by the trustee or any holder. Unless otherwise indicated in the applicable prospectus supplement, if any other event of default occurs and is continuing for any series of debt securities, unless the aggregate principal amount of all debt securities of that particular series has already become due and payable, the indenture trustee or the holders of not less than 25% in aggregate principal amount of the outstanding debt securities of that series may declare all amounts, or any lesser amount provided for in the debt securities of that series, to be immediately due and payable. Upon such a declaration, the principal of (or such lesser amount as may be provided for in the terms of the debt securities of that series) and all accrued and unpaid interest on such debt securities will become immediately due and payable upon notice of such declaration being given in writing to the Company and, if the acceleration is by the holders, the trustee. At any time after a declaration of acceleration with respect to the debt securities of a series has been made, but before a judgment or decree for payment of the money due has been obtained, the holders of a majority in aggregate principal amount of outstanding debt securities of that series may rescind and annul the consequences of the event of default, but only if certain conditions have been satisfied.
We may offer subordinated debt securities of a series that we intend to qualify as “Tier 2 capital” under the federal regulatory rules and guidelines for bank holding company capital. For such subordinated debt securities to so qualify as “Tier 2 capital,” the maturity of such subordinated debt securities may not be accelerated upon the occurrence and continuation of an event of default unless the event of default is one based on the entry of a decree or order for relief in a bankruptcy or insolvency proceeding or the commencement by us of a bankruptcy or insolvency proceeding or our consent to the entry of an order in an involuntary bankruptcy or insolvency proceeding as discussed above. Notwithstanding the discussion appearing above of the rights of the subordinated debt trustee or holders of subordinated debt securities to accelerate the maturity of such subordinated debt securities upon the occurrence of a non-insolvency event of default, the terms of the subordinated debt securities of a series intended to qualify as “Tier 2 capital” will expressly limit the rights of the subordinated debt trustee and the holders of the subordinated debt securities of such series to declare an acceleration of the maturity of such subordinated debt securities upon the occurrence of a non-insolvency default and such limitation will be described in any prospectus supplement by which we offer subordinated debt securities of that series for sale. As a consequence of that limitation, with respect to our subordinated debt securities of a series intended to qualify as “Tier 2 capital,” neither the trustee nor the holders of the subordinated debt securities of any series or any group of holders of any portion of the outstanding subordinated debt securities of one or more series will have the right to accelerate the subordinated debt securities of any series in the event of a default in the payment of principal of, or premium, if any, or interest on, the subordinated debt securities of that series or as a result of our nonperformance of any other covenant applicable to or obligation arising under the terms of the subordinated debt securities of that series or the subordinated debt indenture. If we default in our obligation to pay any interest on the subordinated debt securities when due and payable and such default continues for a period of 30 days, or if we default in our obligation to pay the aggregate principal amount due upon maturity, or if we breach any covenant or agreement contained in the subordinated debt indenture and that default continues for any grace period, then the subordinated debt trustee may, subject to certain limitations and conditions, seek to enforce its rights and the rights of the holders of subordinated debt securities of the performance of any covenant or agreement in the indenture. As a result of such limitations on the rights and remedies of the holders of subordinated debt securities of a series intended to qualify as “Tier 2 capital”, the holders of our senior debt securities, holders of our other senior indebtedness, holders of our subordinated debt securities of a series not intended to qualify as “Tier 2 capital” and our general creditors would be able to act to recover amounts owing to them prior to the holders of our subordinated debt securities.
Collection of Indebtedness
If an event of default relating to our failure to pay interest or principal, to make a sinking fund or analogous payment occurs with respect to the debt securities of a series issued under an indenture, we must pay to the applicable trustee for the benefit of the holders of the affected debt securities the amount of the principal of, and premium, if any, and accrued and unpaid interest on, such debt securities and, to the extent legally enforceable, interest on any such overdue amounts at the rate determined as prescribed in the terms of such debt securities. If we fail to pay such amounts, the applicable trustee may institute a suit against us to collect the amounts due and payable. If the debt securities as to which such a failure of payment occurs are subordinated debt securities intended
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to qualify as “Tier 2 capital,” the amounts we would be required to pay to the subordinated debt trustee upon such a failure of payment or performance would not include any principal, premium or interest that would not be due without the maturity of such subordinated debt securities being accelerated.
Limitations on Suits by Holders
Except to enforce the right to receive payment of principal, premium, if any, or interest, when due, holders of debt securities will have no right to institute any proceeding, judicial or otherwise, with respect to the indentures, or for the appointment of a receiver or trustee, or for any other remedy under the indentures unless:
such holder has previously given written notice to the trustee of a continuing event of default with respect to the applicable debt securities;
the holders of not less than 25% in aggregate principal amount of the applicable debt securities shall have made written request to the trustee to institute proceedings in respect of such event of default in its own name as trustee under the applicable indenture;
such holder or holders have offered to the trustee reasonable security or indemnity against the costs, expenses, and liabilities to be incurred in complying with such request;
the trustee for 60 days after its receipt of such notice, request, and offer of security or indemnity has failed to institute any such proceeding; and
no direction inconsistent with such written request has been given to the trustee during such 60-day period by the holders of a majority in aggregate principal amount of the outstanding debt securities.
In any event, the applicable indenture provides that no one or more of such holders of the debt securities of a series will have any right under such indenture to affect, disturb or prejudice the rights of any other holder of debt securities of any series issued under such indenture, or to obtain priority or preference over any of the other holders or to enforce any right under such indenture, except in the manner provided in the indenture and for the equal and ratable benefit of all holders of debt securities issued under that indenture.
Waiver
Each indenture provides that the holders of not less than a majority in aggregate principal amount of the outstanding debt securities of any series issued under that indenture may waive any past default with respect to that series and its consequences, except a default:
in the payment of the principal of, or premium, if any, or interest on any debt security of that series; or
in respect of a covenant or provision contained in that indenture that, by the terms of the indenture, cannot be modified or amended without the consent of each affected holder of an outstanding debt security.
Notice of Defaults
The trustee will be required to give notice to the holders of the applicable debt securities within 90 days of a default under the applicable indenture unless the default has been cured or waived; but the trustee may withhold notice of any default, except a default in the payment of the principal of, or premium, if any, or interest on the debt securities or in the payment of any sinking fund installment in respect of the debt securities, if specified responsible officers of the trustee consider the withholding to be in the interest of the holders.
Subject to the trustee’s duties in case of default, no trustee will be under any obligation to exercise any of its rights or powers under the indenture at the request or direction of any holders of debt securities of a series then outstanding under the applicable indenture unless the holders offer to the trustee reasonable security or indemnity. Subject to such provisions for the indemnification of the trustee, the holders of not less than a majority in aggregate principal amount of the outstanding debt securities of any series issued under the indenture will have the right to direct the time, method and place of conducting any proceeding for any remedy available to the applicable trustee or of the applicable trustee exercising any trust or power conferred upon the trustee. A trustee may refuse, however, to follow any direction that is in conflict with any law or the indenture that may involve the trustee in personal liability or may be unduly prejudicial to the holders of debt securities of that series not joining in the direction.
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Within 120 days after the end of each fiscal year, we will be required to deliver to each trustee a certificate, signed by one of several specified officers, stating whether or not that officer has knowledge of any default under the indenture and, if so, specifying each default and the nature and status of the default.
Modification of an Indenture
Except as otherwise specifically provided in the applicable indenture, with the consent of the holders of not less than a majority in aggregate principal amount of all outstanding debt securities issued under the indenture that are affected by the modification or amendment, we may enter into supplemental indentures with the trustee for the purpose of adding any provisions to or changing in any manner or eliminating any of the provisions of the indenture or of modifying in any manner the rights of the holders of debt securities issued under the indenture. However, no modification or amendment may, without the consent of the holder of each debt security affected by the modification or amendment:
extend the stated maturity of the principal of, or any installment of interest, or the premium, if any, on, any debt security;
reduce the percentage in aggregate principal amount of, or the rate at which interest accrues under, amount of interest on, or change the manner of calculating the rate, or any premium payable on redemption of, any debt security, or reduce the amount of principal of an original issue discount security that would be due and payable upon declaration of acceleration of its maturity or would be provable in bankruptcy, or adversely affect any right of repayment of the holder of any debt security;
extend the time of payment of interest on any debt security;
change any of the conversion, exchange or redemption provisions of any debt security;
change the place of payment, or the coin or currency for payment, of principal of, or premium, if any, including any amount in respect of original issue discount or interest on any debt security;
impair the right to institute suit for the enforcement of any payment on or with respect to any debt security or for the conversion or exchange of any debt security in accordance with its terms;
modify the ranking or priority of the securities in a manner adverse to the holders of any debt security;
reduce the percentage of outstanding debt securities of any series necessary to modify or amend the indenture, to waive compliance with specific provisions of or certain defaults and consequences under the indenture, or to reduce the quorum or voting requirements set forth in the indenture; or
modify any of the provisions relating to the waiver of specific past defaults or compliance with specific covenants, except to increase the required percentage to effect that action or to provide that specific other provisions may not be modified or waived without the consent of the holder of that debt security.
The holders of not less than a majority in aggregate principal amount of the outstanding debt securities of each series affected by any such modification or amendment will have the right to waive our compliance with specific covenants in the indenture.
We and the trustee may modify and amend the applicable indenture without the consent of the holders of debt securities for any of the following purposes:
to evidence the succession of another person to us as obligor under the indenture;
to add to our covenants for the benefit of the holders of all or any series of debt securities issued under the indenture or to surrender any right or power conferred upon us in the indenture;
to add to or change any of the provisions of the indenture to such extent as shall be necessary to permit or facilitate the issuance of debt securities in uncertificated form;
to establish the form or terms of debt securities of any series to be issued under the indenture;
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to provide for the acceptance of appointment by a successor trustee or facilitate the administration of the trusts under the indenture by more than one trustee;
to cure any ambiguity or correct any inconsistency in the indenture provided that the cure or correction does not adversely affect the holders of the debt securities issued under the indenture;
to add to, delete from or revise the conditions, limitations or restrictions on issue, authentication and delivery of debt securities to be issued under the indenture in the future;
to add any additional events of default for the benefit of the holders of all or any series of debt securities issued under the indenture;
to secure the debt securities of any series issued under the indenture;
to conform any provision in the indenture to the requirements of the Trust Indenture Act;
to make any change that does not adversely affect the legal rights under the indenture of any holder of debt securities of any series issued under the indenture;
to make provisions with respect to the conversion or exchange terms and conditions applicable to the debt securities of any series issued under the indenture;
to change or eliminate any provision of the indenture, if the change or elimination becomes effective only when there are no debt securities outstanding of any series created thereunder prior to the change or elimination that are entitled to the benefit of the changed or eliminated provision; or
in the case of any subordinated debt security, to make any change in the subordinated provisions that limits or terminates the benefits applicable to the holder of any senior debt.
Calculation of Outstanding Debt Securities
In determining whether the holders of the requisite principal amount of outstanding debt securities of a series have given any request, demand, authorization, direction, notice, consent or waiver under the indenture governing such series of debt securities or whether a quorum is present at a meeting of holders of debt securities of such series:
the aggregate principal amount of an original issue discount security that is deemed to be outstanding will be the amount of the principal of that original issue discount security that would be due and payable as of the date of the determination upon declaration of acceleration of the maturity of that original issue discount security;
the aggregate principal amount of an indexed security that is deemed outstanding will be the principal face amount of the indexed security at original issuance, unless otherwise provided with respect to the indexed security under the indenture; and
debt securities owned by us or any other obligor upon the debt securities or any affiliate of us or of any other obligor will be disregarded.
Discharge, Defeasance and Covenant Defeasance
Discharge
We are permitted under each indenture to discharge specific obligations to holders of any series of debt securities issued under the indenture (1) that have not already been delivered to the applicable trustee for cancellation and (2) that either have become due and payable or will, within one year, become due and payable or scheduled for redemption, by irrevocably depositing with the applicable trustee, in trust, money or funds certified to be sufficient to pay when due, whether at maturity, upon redemption or otherwise, the principal of, and premium, if any, on and interest on the debt securities of one or more series.
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Defeasance and Covenant Defeasance
If the provisions in an indenture relating to defeasance and covenant defeasance are made applicable to the debt securities of any series issued under that indenture, we may elect either:
defeasance, which means we elect to defease and be discharged from any and all obligations with respect to the debt securities of a series, except for the obligations to register the transfer or exchange of the debt securities, to replace temporary or mutilated, destroyed, lost or stolen debt securities, to maintain an office or agency in respect of the debt securities and to hold moneys for payment in trust; or
covenant defeasance, which means we elect to be released from our obligations with respect to the debt securities under specified sections of the indenture relating to covenants, as described in the applicable prospectus supplement and any omission to comply with our obligations will not constitute an event of default with respect to the debt securities being defeased; in either case upon the irrevocable deposit by us with the applicable trustee, in trust, of an amount, in currency or government obligations, or both, sufficient without reinvestment to make scheduled payments of the principal of, and premium, if any, and interest on such debt securities, when due, whether at maturity, upon redemption or otherwise, and any mandatory sinking fund or analogous payments.
A trust will only be permitted to be established under an indenture if, among other things:
we have delivered to the applicable trustee an opinion of counsel, as specified in the applicable indenture, to the effect that the holders of the debt securities being defeased will not recognize income, gain or loss for federal income tax purposes as a result of the defeasance or covenant defeasance and will be subject to federal income tax on the same amounts, in the same manner and at the same times as would have been the case if the defeasance or covenant defeasance had not occurred, and the opinion of counsel, in the case of defeasance, will be required to refer to and be based upon a ruling of the Internal Revenue Service or a change in applicable U.S. federal income tax law occurring after the date of the indenture;
no event of default or any event which after notice or lapse of time or both would be an event of default has occurred and is continuing;
the defeasance or covenant defeasance will not result in a breach or violation of, or constitute an event of default under, the indenture, any senior debt or any other material agreement or instrument to which the Company is a party or by which it is bound;
certain other provisions set forth in the applicable indenture are met;
we will have delivered to the trustee an officers’ certificate and an opinion of counsel, each stating that all conditions precedent to the defeasance or covenant defeasance have been complied with; and
in the case of the subordinated debt indenture, no event or condition will exist that, pursuant to certain provisions described under “—Ranking—Subordinated Debt Securities,” would prevent the Company from making payments of principal of and premium, if any, and interest on the subordinated debt securities being defeased at the date of the irrevocable deposit referred to above.
In general, if we elect covenant defeasance with respect to any debt securities and payments on those debt securities are declared due and payable because of the occurrence of an event of default, the amount of money and/or government obligations on deposit with the applicable trustee would be sufficient to pay amounts due on those debt securities at the time of their stated maturity, but may not be sufficient to pay amounts due on those debt securities at the time of the acceleration resulting from the event of default. In that case, we would remain liable to make payment of the amounts due on the debt securities at the time of acceleration.
In the event we properly discharge and satisfy or effect a defeasance or covenant defeasance with respect to any subordinated debt securities, the subordination provisions of those subordinated debt securities will cease to cause those subordinated debt securities to be subordinate in right of payment to the payment in full of the senior indebtedness as defined for purposes of those subordinated debt securities. In such a circumstance, the funds or government obligations deposited in trust with the applicable trustee in connection with such discharge and satisfaction, defeasance or covenant defeasance may be applied to the payment of the principal of, and premium, if
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any, and interest on, the subordinated debt securities discharged and satisfied or the subject of defeasance or covenant defeasance prior to any or all of the senior indebtedness being paid in full.
A prospectus supplement by which we offer for sale debt securities of a particular series may further describe the provisions, if any, permitting defeasance or covenant defeasance, including any modifications to the provisions described above, with respect to the debt securities of or within such particular series.
Regarding the Trustee
    The accompanying prospectus supplement will specify the trustee for the particular series of debt securities to be issued under the indentures.
    The trustee will meet the requirements of the Trust Indenture Act for trustees under indentures being qualified under the Trust Indenture Act. At all times, the trustee must be a corporation organized and doing business under the laws of the United States or any state or territory thereof or of the District of Columbia, with authority to exercise corporate trust powers, be subject to the supervision or examination by federal, state, territorial or District of Columbia authority, have at all times a combined capital and surplus of not less than $5,000,000 and not be the Company or any person directly or indirectly controlled or controlled by or under common control with the Company.
    If the trustee acquires any conflicting interest, as defined in the Trust Indenture Act, with respect to the debt securities, within 90 days after the trustee has or acquired a conflicting interest, which has not been cured or waived, the trustee would generally be required by the Trust Indenture Act to eliminate that conflicting interest or resign as trustee with respect to the debt securities issued under the applicable indenture. If the trustee resigns, we are required to promptly appoint a successor trustee with respect to the affected securities. The trustee and/or certain of its affiliates may provide banking, investment and other services to us.
The trustee has two main roles under the indentures. First, the trustee can enforce your rights against us if an event of default occurs with respect to any debt securities. See “—Limitations on Suits by Holders” and “—Notice of Defaults” for certain information regarding the rights of the trustee upon the occurrence of an event of default. Second, the trustee performs certain administrative duties related to the debt securities of each series for us. The trustee is entitled, subject to the duty of the trustee during a default to act with the required standard of care, to be indemnified by the holders of the debt securities before proceeding to exercise any right or power under the applicable indenture at the request of those holders.
The trustee may resign or be removed as the trustee under an indenture, and a successor trustee may be appointed by us or by the holders holding a majority in aggregate principal amount of the debt securities outstanding under the applicable indenture to act with respect to all of the debt securities outstanding under the applicable indenture. If the trustee resigns or is removed as trustee under one of the indentures, it may continue to serve as the trustee under the other indenture unless it resigns or is removed as trustee under the other indenture.
If two or more persons are acting as trustee with respect to different series of debt securities, each trustee will be a trustee of a trust under that indenture separate from the trust administered by any other such trustee as to a separate series of debt securities issued under that indenture. Except as otherwise indicated in this prospectus or the applicable prospectus supplement, a trustee may only take an action with respect to the debt securities of the particular series of debt securities for which it is trustee under an indenture.
Governing Law
The debt securities of each series and the indenture will be governed by, and construed in accordance with, the internal laws of the State of New York.

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DESCRIPTION OF COMMON STOCK
The following summary describes the material features and rights of our common stock. This summary does not purport to be a complete description of the terms and conditions of our common stock in all reports and is subject to, and qualified in its entirety by, applicable law and the provisions of our amended and restated articles of organization and our second amended and restated by-laws.
General
Our authorized capital stock consists of 41,000,000 shares, of which 40,000,000 shares are common stock, par value $0.01 per share, and 1,000,000 shares are preferred stock, par value $0.01 per share. Our outstanding shares of common stock are, and the shares of common stock to be issued in this offering will be, validly issued, fully paid and non-assessable. As of August 4, 2023, there were 12,242,817 shares of our common stock outstanding, held by approximately 1,098 registered shareholders, and no shares of our preferred stock were outstanding. As of June 30, 2023, there were 166,909 shares of our common stock underlying options that have been issued pursuant to our equity incentive plans and 369,178 shares of our common stock reserved for future issuance under our equity incentive plans. Our common stock is listed for trading on the NASDAQ Global Select Market under the symbol “EBTC.”
Each share of our common stock has the same relative rights and is identical in all respects to every other share of our common stock. Our shares of common stock are neither redeemable nor convertible, and the holders thereof have no preemptive or subscription rights to purchase any of our securities.
Voting Rights
Each outstanding share of our common stock is entitled to one vote on all matters submitted to a vote of shareholders. There is no cumulative voting in the election of directors.
Liquidation Rights
Upon our liquidation, dissolution or winding up, the holders of our common stock are entitled to receive, pro rata, our assets which are legally available for distribution, after payment of all debts and other liabilities and subject to the prior rights of any holders of preferred stock then outstanding.
Dividends Payable on Shares of Common Stock
In general, the holders of outstanding shares of our common stock are entitled to receive dividends out of assets legally available therefor at such times and in such amounts as our board of directors may from time to time determine. The ability of our board of directors to declare and pay dividends on our common stock may be affected by both general corporate law considerations and policies of the Board of Governors of the Federal Reserve System, which we refer to herein as the Federal Reserve, applicable to bank holding companies. As a Massachusetts corporation, we are subject to the limitations of Massachusetts law, which allows us to pay dividends unless, after such dividend: (i) we would not be able to pay our debts as they become due in the usual course of business; or (ii) our total assets would be less than the sum of our total liabilities plus any amount that would be needed, if we were to be dissolved at the time of the dividend payment, to satisfy the preferential rights upon dissolution of our shareholders whose rights are superior to the rights of our shareholders receiving the distribution. Additionally, as a general matter, the Federal Reserve indicates that the board of directors of a bank holding company should eliminate, defer or significantly reduce the dividends if: (i) the company’s net income available to shareholders for the past four quarters, net of dividends previously paid during that period, is not sufficient to fully fund the dividends; (ii) the prospective rate of earnings retention is inconsistent with the company’s capital needs and overall current and prospective financial condition; or (iii) the company will not meet, or is in danger of not meeting, its minimum regulatory capital adequacy ratios. The Federal Reserve also possesses enforcement powers over bank holding companies and their nonbank subsidiaries to prevent or remedy actions that represent unsafe or unsound practices or violations of applicable statutes and regulations. Among these powers is the ability to proscribe the payment of dividends by banks and bank holding companies.
Most of our revenues available for the payment of dividends derive from amounts paid to us by the Bank. There are various statutory limitations that limit the ability of the Bank to pay dividends to us. The Bank is a state-charted bank and is subject to the laws and regulations of the Massachusetts Division of Banks and to the regulations of the FDIC. If a bank’s primary banking regulator determines that the bank is engaged or is about to engage in an unsafe or unsound banking practice, the regulator may require, after notice and hearing, that the bank cease and desist from such practice. Depending on the financial condition of the bank, an unsafe or unsound practice could
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include the payment of dividends. In particular, the federal banking agencies have indicated that paying dividends that deplete a bank’s capital base to an inadequate level would be an unsafe and unsound banking practice.
Under the Massachusetts banking law, Massachusetts state-chartered banks, such as the Bank, generally may pay dividends only out of undivided profits. In addition, the Massachusetts Division of Banks may restrict the declaration or payment of a dividend by a Massachusetts state-chartered bank.
Furthermore, the payment of dividends by any financial institution is affected by the requirement to maintain adequate capital pursuant to applicable capital adequacy guidelines and regulations, and a financial institution generally is prohibited from paying any dividends if, following payment thereof, the institution would be undercapitalized. Even notwithstanding the availability of funds for dividends, the FDIC may prohibit the payment of any dividends by an insured bank, such as the Bank, if the FDIC determines such payment would constitute an unsafe or unsound practice.
In addition to the foregoing regulatory restrictions, we are and may in the future become subject to contractual restrictions that could limit or prohibit us from paying dividends on our common stock.
Anti-Takeover Provisions.
General. Our amended and restated articles of organization and second amended and restated by-laws may have the effect of discouraging, delaying or preventing a change in control or an unsolicited acquisition proposal that a shareholder might consider favorable, including a proposal that might result in the payment of a premium over the market price for the shares held by a shareholder. These provisions are summarized in the following paragraphs.
Authorized Shares of Capital Stock. Authorized but unissued shares of our common stock and preferred stock under our amended and restated articles of organization could (within the limits imposed by applicable law and NASDAQ Marketplace Rules) be issued in one or more transactions that could make a change of control of us more difficult, and therefore more unlikely. The additional authorized shares could be used to discourage persons from attempting to gain control of us by diluting the voting power of shares then outstanding or increasing the voting power of persons who would support the board of directors in a potential takeover situation, including by preventing or delaying a proposed business combination that is opposed by the board of directors although perceived to be desirable by some shareholders.
Beneficial Ownership Limitation. Our amended and restated articles of organization provide that no person or group of persons acting in concert may own or control or have the power to vote directly or indirectly more than 9.9% of the outstanding shares of the Company’s common stock. However, this limitation does not apply to (i) any acquisition of shares of the Company’s common stock which has been expressly approved in advance by the affirmative vote of not less than two-thirds (2/3rds) of the Company’s directors then in office, (ii) to any offer to the Corporation made by any underwriters selected by the Company in connection with a public offering by the Company of the Company’s capital stock, or (iii) to any employee stock ownership plan established by the Company.
Classified Board of Directors. Our articles of organization provide that our board of directors be divided into three classes as nearly equal in number as possible, with one class to be elected annually in accordance with our by-laws, to hold office for a three-year term. Our articles of organization further provide that directors may be removed from office only for “cause” by the affirmative vote of not less than (i) the holders of two-thirds of the total votes eligible to be cast by our shareholders, or (ii) two-thirds of the members of the board of directors then in office. “Cause” is defined in our articles of organization as (a) conviction of a felony, (b) declaration of unsound mind by order of court, (c) gross dereliction of duty as determined by a majority of the board of directors, (d) commission of an action involving moral turpitude, or (e) commission of an action which constitutes intentional misconduct or a knowing violation of law if such action in either event results both in an improper substantial personal benefit and a material injury to the Company. Having a classified board of directors could prevent or delay the ability of shareholders to remove or replace our directors, even if such action is favored by a majority of our outstanding shares of common stock.
Limitations on Right to Call Special Meetings. Under our amended and restated articles of organization, a special meeting of our shareholders may be called only by: (i) the Chairman of the Board or the Chief Executive Officer, or (ii) by the affirmative vote of a majority of the directors then in office; provided, however, that if at the time of such call there is an Interested Shareholder, as defined in our amended and restated articles of organization, any such call for a special meeting also requires the affirmative vote of a majority of the Continuing Directors, as defined in our amended and restated articles of organization, then in office.
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Advance Notice Requirements for Shareholder Proposal and Director Nomination. Our second amended and restated by-laws require that shareholder proposals and director nominations by shareholders meet certain advanced notice and minimum informational requirements. For a shareholder to nominate a candidate for director or to bring other business before an annual meeting, notice must be received by the Company’s Secretary not less than 90 days and not more than 120 days prior to the first anniversary of the preceding year’s annual meeting. To be timely in connection with a special meeting, notice must be received by the Company’s Secretary not less than 40 days and not more than 60 calendar days prior to the date of such special meeting. In addition, notice of a nomination for director must describe various matters regarding the nominee and the shareholder giving the notice. Notice of other business to be brought before the meeting must include a description of the proposed business, the reasons therefore, and other specified matters regarding the shareholder giving the notice. These provisions could have the effect of delaying until the next annual shareholders’ meeting shareholder actions which are favored by the holders of a majority of our outstanding voting securities.
State Anti-Takeover Laws. Chapters 110C, 110D and 110F of the Massachusetts General Laws are generally applicable to any “take-over” of a Massachusetts corporation. In general, Chapter 110F of the Massachusetts General Laws prevents an “interested shareholder” (including certain persons who own or have the right to acquire 5% or more of a corporation’s outstanding voting stock) from engaging in a “business combination” (defined to include mergers and certain other actions) with a Massachusetts corporation for a period of three years following the date such person became an interested shareholder unless, among other things, (i) prior to the date such person became an interested shareholder, the board of directors of the corporation approved either the business combination or the transaction in which the interested shareholder became an interested shareholder; (ii) upon consummation of the transaction in which the interested shareholder became an interested shareholder, the interested shareholder owned at least 90% of the voting stock of the corporation outstanding at the time the transaction commenced (excluding, for purposes of determining the number of shares outstanding, stock held by directors who are also officers and by employee stock plans that do not allow plan participants to determine confidentially whether to tender shares); or (iii) on or subsequent to the date the business combination is approved by the board of directors of the corporation and authorized at a meeting of shareholders, and not by written consent, by the affirmative vote of the holders of at least 66 2/3% of the outstanding voting stock of the corporation which is not owned by the interested shareholder.
Chapter 110D of the Massachusetts General Laws restricts the voting rights of shares acquired in a “control share acquisition,” unless, among other things, the articles of organization or by-laws of a Massachusetts corporation provide that such restrictions are inapplicable. Neither our amended and restated articles of organization nor our second amended and restated by-laws provide that the provisions of Chapter 110D do not apply to us.
Chapter 110C of the Massachusetts General Laws subjects an offeror to certain disclosure and filing requirements before such offeror can proceed with a “take-over bid,” defined to include any acquisition of or offer to acquire more than ten percent (10%) of the issued and outstanding equity securities of a target company.
The foregoing discussion is not a complete statement of Massachusetts law and is qualified in its entirety by reference to Chapter 110F, Chapter 110C, Chapter 110D and the Massachusetts Business Corporation Act.
Shareholders’ Rights Plan. We have maintained a shareholders’ rights plan since 1998. The plan as originally adopted expired pursuant to its terms on January 13, 2008, and in conjunction with such expiration we adopted a renewed shareholders’ rights plan containing terms that are substantially similar to the terms of the original plan. The renewed shareholders’ rights plan was further extended by the board of directors on January 3, 2018. Under the plan, as extended, each share of common stock includes a right to purchase under certain circumstances one one-hundredth of a share of our Series A Junior Participating Preferred Stock, par value $0.01 per share, at a purchase price of $122.50 per one one-hundredth of a preferred share, subject to adjustment, or, in certain circumstances, to receive cash, property, shares of common stock or other securities of the Company. The rights are not presently exercisable and remain attached to the shares of common stock until the occurrence of certain triggering events that would ordinarily be associated with an unsolicited acquisition or attempted acquisition of 10% or more of our outstanding shares of common stock. The rights will expire, unless earlier redeemed, exchanged, or otherwise rescinded by us, on January 13, 2028. The rights have no voting or dividend privileges, and unless and until they become exercisable have no dilutive effect on our earnings. The terms of our shareholders’ rights plan are described in greater detail in Exhibit 4.4 of our 2022 Form 10-K and which is referenced in the section above entitled “Incorporation of Certain Information by Reference.”
Bank Holding Company Act. The Bank Holding Company Act generally would prohibit any company that, together with its affiliates, is not solely engaged in activities that are permissible for a bank holding company or a financial holding company from acquiring control of us. For these purposes, “control” is generally defined as ownership, control or the ability to vote 25% or more of any class of voting stock of, control of the election of a majority of the directors of or other exercise of a controlling influence over a bank holding company. In addition,
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any existing bank holding company would need the prior approval of the Federal Reserve before acquiring 5% or more of our voting stock. The Change in Bank Control Act of 1978, as amended, prohibits a person or group of persons from acquiring control of a bank holding company unless the Federal Reserve has been notified and has not objected to the transaction. Under a rebuttable presumption established by regulations of the Federal Reserve, the acquisition of 10% or more of a class of voting stock of a bank holding company with a class of securities registered under Section 12 of the Exchange Act, such as us, is presumed to constitute acquisition of control of the bank holding company for purposes of the Change in Bank Control Act of 1978.

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DESCRIPTION OF PREFERRED STOCK
The following description is a general summary of the terms of the preferred stock that we may issue. The description below and in any prospectus supplement relating to the offer for sale of shares of a series of our preferred stock does not purport to be complete and is subject to and qualified in its entirety by reference to our amended and restated articles of organization, and the applicable articles of amendment to our amended and restated articles of organization establishing the terms of the series of preferred stock being offered for sale by means of a prospectus supplement and our second amended and restated by-laws, each of which we will make available upon request. The descriptions herein and in the applicable prospectus supplement do not contain all of the information that you may find useful or that may be important to you. You should refer to the provisions of our amended and restated articles of organization and our second amended and restated by-laws because they, and not the summaries, define your rights as a holder of shares of our preferred stock as of the date of this prospectus. See “Where You Can Find More Information” for additional information.
General
Our authorized capital stock consists of 41,000,000 shares, of which 40,000,000 shares are common stock, par value $0.01 per share, and 1,000,000 shares are preferred stock, par value $0.01 per share.
Our amended and restated articles of organization, subject to limitations prescribed in our second amended and restated by-laws and subject to limitations prescribed by Massachusetts law, authorizes the Company’s board of directors, from time to time by resolution and without further shareholder action, to provide for the issuance of shares of preferred stock, in one or more series, and to fix the relative rights and preferences of the shares of a series including voting powers, dividend rights, liquidation preferences, redemption rights and conversion privileges.
In addition, as described under “Description of Depositary Shares,” we may, instead of offering full shares of any series of preferred stock, offer depositary shares evidenced by depositary receipts, each representing a fraction of a share of the particular series of preferred stock issued and deposited with a depositary. The fraction of a share of preferred stock which each depositary share represents will be set forth in the prospectus supplement relating to such depositary shares.
Terms of the Preferred Stock That We May Offer and Sell to You
You should refer to the prospectus supplement relating to the shares of one or more series of preferred stock being offered for sale for the specific terms of that series, including:
the title and par value of the series of preferred stock being offered and the price per share at which such shares of the series of preferred stock are being offered to the public;
the number of shares of the series of preferred stock being offered;
the number of shares of preferred stock included in that series of preferred stock;
the liquidation preference per share of the preferred stock of such series;
the dividend rate(s), period(s) and/or payment date(s) or method(s) of calculating the payment date(s) applicable to the shares of the series of preferred stock being offered;
whether dividends will be cumulative or noncumulative and, if cumulative, the date from which dividends on the shares of preferred stock being offered will accumulate;
the procedures for any auction and remarketing, if any, for the shares of preferred stock being offered;
the provisions for a sinking fund, if any, for the shares of preferred stock being offered;
the provisions for redemption, if applicable, of the shares of preferred stock being offered;
any listing of the shares of preferred stock being offered on any securities exchange or market;
the terms and conditions, if applicable, upon which the shares of preferred stock being offered will be convertible into or exchangeable for other securities or rights, or a combination of the foregoing,
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including the name of the issuer of the securities or rights, conversion or exchange ratio or price, or the manner of calculating the conversion or exchange ratio or price, and the conversion or exchange date(s) or period(s) and whether we will have the option to convert such preferred stock into cash;
voting rights, if any, of the shares of preferred stock being offered;
a discussion of any material and/or special United States federal income tax considerations applicable to the shares of preferred stock being offered;
the relative ranking and preferences of the shares of preferred stock being offered as to dividend rights to participate in our assets and rights upon winding up or termination of the affairs of the Company;
any limitations on the issuance of any series of preferred stock ranking senior to or equally with the series of preferred stock being offered as to dividend rights and rights to participate in our assets upon winding up or termination of the affairs of the Company; and
any other specific terms, preferences, rights, limitations or restrictions of the shares of preferred stock being offered.
Redemption
If so specified in the applicable prospectus supplement, a series of preferred stock may be redeemable at any time, in whole or in part, at our option, and may be mandatorily redeemable or convertible. Restrictions, if any, on the repurchase or redemption by us of any series of our preferred stock will be described in the applicable prospectus supplement relating to that series. Generally, any redemption of our preferred stock will be subject to prior Federal Reserve approval. Any partial redemption of a series of preferred stock would be made in the manner described in the applicable prospectus supplement relating to that series.
Upon the redemption date of shares of preferred stock called for redemption or upon our earlier call and deposit of the redemption price, all rights of holders of the preferred stock called for redemption will terminate, except for the right to receive the redemption price.
Dividends
Holders of each series of preferred stock will be entitled to receive cash dividends only when, as and if declared by our board of directors out of funds legally available for dividends. The rates or amounts and dates of payment of dividends will be described in the applicable prospectus supplement relating to each series of preferred stock. Dividends will be payable to holders of record of preferred stock on the record dates fixed by our board of directors. Dividends on any series of preferred stock may be cumulative or noncumulative, as described in the applicable prospectus supplement.
Our board of directors may not declare, pay or set apart funds for payment of dividends on a particular series of preferred stock unless full dividends on any other series of preferred stock that ranks equally with or senior to such series of preferred stock with respect to the payments of dividends have been paid or sufficient funds have been set apart for payment for either of the following:
all prior dividend periods of each such series of preferred stock that pay dividends on a cumulative basis; or
the immediately preceding dividend period of each such series of preferred stock that pays dividends on a noncumulative basis.
Partial dividends declared on shares of any series of preferred stock and other series of preferred stock ranking on an equal basis as to dividends will be declared pro rata. A pro rata declaration means that the ratio of dividends declared per share to accrued dividends per share will be the same for all series of preferred stock of equal priority.
Liquidation Preference
In the event of the liquidation, dissolution or winding-up of us, holders of each series of preferred stock will have the right to receive distributions upon liquidation in the amount described in the applicable prospectus
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supplement relating to each series of preferred stock, plus an amount equal to any accrued but unpaid dividends. These distributions will be made before any distribution is made on our common stock or on any securities ranking junior to such preferred stock upon liquidation, dissolution or winding-up.
However, holders of the shares of preferred stock will not be entitled to receive the liquidation price of their shares until we have paid or set aside an amount sufficient to pay in full the liquidation preference of any class or series of our capital stock ranking senior as to rights upon liquidation, dissolution or winding up. Unless otherwise provided in the applicable prospectus supplement, neither a consolidation or merger of the Company with or into another corporation nor a merger of another corporation with or into the Company nor a sale or transfer of all or part of the Company’s assets for cash or securities will be considered a liquidation, dissolution or winding up of the Company.
If the liquidation amounts payable to holders of preferred stock of all series ranking on a parity regarding liquidation are not paid in full, the holders of the preferred stock of these series will have the right to a ratable portion of our available assets up to the full liquidation preference. Holders of these series of preferred stock or such other securities will not be entitled to any other amounts from us after they have received their full liquidation preference.
Voting Rights
The holders of shares of preferred stock will have no voting rights, except:
as otherwise stated in the applicable prospectus supplement;
as otherwise stated in the articles of amendment to our amended and restated articles of incorporation establishing the series of such preferred stock; and
as otherwise required by applicable law.


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DESCRIPTION OF DEPOSITARY SHARES 
The following summary of the terms of the depositary shares does not purport to be complete and is subject to, and is qualified in its entirety by reference to, the terms of the depositary shares and our preferred stock, as well as the form of the deposit agreement, our amended and restated articles of organization and second amended and restated by-laws relating to the applicable series of our preferred stock that are, or will be, filed with the SEC. Therefore, you should carefully consider the actual provisions of these documents.
General
We may offer depositary shares evidenced by receipts for such depositary shares, which we sometimes refer to as “depositary receipts.” Each depositary receipt represents a fraction of a share of the particular series of preferred stock issued. The fraction of a share of preferred stock which each depositary share represents will be set forth in the applicable prospectus supplement. Each owner of a depositary share will be entitled, in proportion to the applicable fractional interest in shares of our preferred stock underlying that depositary share, to all rights and preferences of our preferred stock underlying that depositary share. These rights may include dividend, voting, redemption and liquidation rights.
The shares of our preferred stock underlying the depositary shares will be deposited with a bank or trust company selected by us to act as depositary, under a deposit agreement between us, the depositary and the holders of the depositary receipts. The depositary will be the transfer agent, registrar and dividend disbursing agent for the depositary shares. The name and address of the principal executive office of the depositary will be included in the prospectus supplement relating to the issuance.
The depositary shares will be evidenced by depositary receipts issued pursuant to the deposit agreement. Holders of depositary receipts agree to be bound by the deposit agreement, which requires holders to take certain actions such as filing proof of residence and paying certain charges.
Dividends and Other Distributions
The depositary will distribute cash dividends or other cash distributions, if any, received in respect of the series of our preferred stock underlying the depositary shares to the record holders of depositary receipts in proportion to the number of depositary shares owned by those holders on the relevant record date. The relevant record date for depositary shares will be the same date as the record date for our preferred stock.
In the event of a distribution other than in cash, the depositary will distribute property received by it to the record holders of depositary receipts that are entitled to receive the distribution, unless the depositary determines that it is not feasible to make the distribution. If this occurs, the depositary, with our approval, may adopt another method for the distribution, including selling the property and distributing the net proceeds to the holders.
Liquidation Preference
If a series of our preferred stock underlying the depositary shares has a liquidation preference, in the event of our voluntary or involuntary liquidation, dissolution or winding up, holders of depositary shares will be entitled to receive the fraction of the liquidation preference accorded each share of the applicable series of our preferred stock, as set forth in the applicable prospectus supplement.
Redemption
If a series of our preferred stock underlying the depositary shares is subject to redemption, the depositary shares will be redeemed from the proceeds received by the depositary resulting from the redemption, in whole or in part, of our preferred stock held by the depositary. Whenever we redeem any of our preferred stock held by the depositary, the depositary will redeem, as of the same redemption date, the number of depositary shares representing our preferred stock so redeemed. The depositary will mail the notice of redemption to the record holders of the depositary receipts promptly upon receiving the notice from us and no fewer than 30 nor more than 60 days, unless otherwise provided in the applicable prospectus supplement, prior to the date fixed for redemption of our preferred stock.
After the date fixed for redemption, the depositary shares called for redemption will no longer be outstanding. When the depositary shares are no longer outstanding, all rights of the holders will end, except the right to receive money, securities or other property payable upon redemption.
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Voting Rights
Upon receipt of notice of any meeting at which the holders of our preferred stock are entitled to vote, the depositary will mail the information contained in the notice of meeting to the record holders of the depositary receipts underlying our preferred stock. Each record holder of those depositary receipts on the record date will be entitled to instruct the depositary as to the exercise of the voting rights pertaining to the amount of our preferred stock underlying that holder’s depositary shares. The record date for the depositary will be the same date as the record date for our preferred stock. The depositary will try, as far as practicable, to vote our preferred stock underlying the depositary shares in accordance with these instructions. We will agree to take all action that may be deemed necessary by the depositary in order to enable the depositary to vote our preferred stock in accordance with these instructions. The depositary will not vote our preferred stock to the extent that it does not receive specific instructions from the holders of depositary receipts.
Conversion or Exchange Rights
If any series of preferred stock underlying the depositary shares is subject to conversion or exchange, the applicable prospectus supplement will describe the rights or obligations of each record holder of depositary receipts to convert or exchange the depositary shares.
Withdrawal of Preferred Stock
Owners of depositary shares will be entitled to receive upon surrender of depositary receipts at the principal office of the depositary and payment of any unpaid amount due to the depositary, the number of whole shares of our preferred stock underlying their depositary shares.
Partial shares of our preferred stock will not be issued. If the surrendered depositary shares exceed the number of depositary shares that represent the number of whole shares of preferred stock the holder wishes to withdraw, then the depositary will deliver to the holder at the same time a new depositary receipt evidencing the excess number of depositary shares. Holders of our preferred stock will not be entitled to deposit the shares under the deposit agreement or to receive depositary receipts evidencing depositary shares for our preferred stock.
Amendment and Termination of the Deposit Agreement
The form of depositary receipt evidencing the depositary shares and any provision of the deposit agreement may be amended by agreement between the depositary and us. However, any amendment which materially and adversely alters the rights of the holders of depositary shares, other than fee changes, will not be effective unless the amendment has been approved by the holders of at least a majority of the outstanding depositary shares.
The deposit agreement will automatically terminate if:
all outstanding depositary shares have been redeemed and all amounts payable upon redemption have been paid;
each share of preferred stock held by the depositary has been converted into or exchanged for common stock, other preferred stock or other securities; or 
a final distribution in respect of the preferred stock held by the depositary has been made to the holders of depositary receipts in connection with our liquidation, dissolution or winding-up.
We may also terminate the deposit agreement at any time. Upon such event, the depositary will give notice of termination to the holders not less than 30 days before the termination date. Once depositary receipts are surrendered to the depositary, it will send to each holder the number of whole and fractional shares of the series of preferred stock underlying that holder’s depositary receipts, provided that, at our election we may pay cash in lieu of fractional shares of preferred stock that may be issuable.
Charges of Depositary
We will pay all transfer and other taxes and governmental charges arising solely from the existence of the depositary arrangement. We will also pay charges of the depositary in connection with:
the initial deposit of our preferred stock;
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the initial issuance of the depositary shares; 
any redemption of our preferred stock; and 
all withdrawals of our preferred stock by owners of depositary shares.
Holders of depositary receipts will pay transfer, income and other taxes and governmental charges and other specified charges as provided in the deposit agreement for their accounts.
Limitations on Our Obligations and Liability to Holders of Depositary Receipts
The deposit agreement will limit our obligations and the obligations of the depositary. It will also limit our liability and the liability of the depositary as follows:
We and the depositary will only be obligated to take the actions specifically set forth in the deposit agreement in good faith;
We and the depositary will not be liable if either is prevented or delayed by law or circumstances beyond our or its control from performing our or its obligations under the deposit agreement;
We and the depositary will not be liable if either exercises discretion permitted under the deposit agreement;
We and the depositary will have no obligation to become involved in any legal or other proceeding related to the depositary receipts or the deposit agreement on behalf of the holders of depositary receipts or any other party, unless we and the depositary are provided with satisfactory indemnity; and
We and the depositary will be permitted to rely upon any written advice of counsel or accountants and on any documents we believe in good faith to be genuine and to have been signed or presented by the proper party.
In the deposit agreement, we will agree to indemnify the depositary under certain circumstances.
Resignation and Removal of Depositary
The depositary may resign at any time by delivering a notice to us. We may remove the depositary at any time. Any such resignation or removal will take effect upon the appointment of a successor depositary and its acceptance of such appointment. The successor depositary must be appointed within 60 days after delivery of the notice for resignation or removal. The successor depositary must be a bank and trust company having its principal office in the United States of America and having a combined capital and surplus of at least $50,000,000.
Miscellaneous
The depositary will forward to the holders of depositary receipts all reports and communications we deliver to the depositary that we are required to furnish to the holders of our preferred stock. In addition, the depositary will make available for inspection by holders of depositary receipts at the principal office of the depositary, and at such other places as it may from time to time deem advisable, any reports and communications we deliver to the depositary as the holder of our preferred stock.

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DESCRIPTION OF SUBSCRIPTION RIGHTS 
The following briefly summarizes the general provisions of rights that we may offer to purchase additional shares of our common stock or any series of preferred stock, which we may issue. The following description and any description in a prospectus supplement is a summary only and is subject to, and qualified in its entirety by reference to the terms and provisions of the rights, which we will file with the SEC in connection with an issuance of rights to holders of our common stock or any series of our preferred stock. The specific terms of any rights, including the period during which the rights may be exercised, the manner of exercising such rights, and the transferability of rights, will be disclosed in the applicable prospectus supplement. Although we may issue rights, in our sole discretion, we have no obligation to do so.
General
We may issue subscription rights to purchase our common stock, preferred stock, depositary shares or debt securities. These subscription rights may be issued independently or together with any other security offered hereby and may or may not be transferable by the shareholder receiving the subscription rights in such offering. In connection with any offering of subscription rights, we may enter into a standby arrangement with one or more underwriters or other purchasers pursuant to which the underwriters or other purchasers may be required to purchase any securities remaining unsubscribed for after such offering.
After the close of business on the expiration date of a subscription rights offering, all unexercised subscription rights will become void.
The applicable prospectus supplement will describe the specific terms of any offering of subscription rights for which this prospectus is being delivered, including the following:
the price, if any, for the subscription rights;
the exercise price payable for each share of our common stock, preferred stock, depositary shares or for debt securities upon the exercise of the subscription rights;
the number of subscription rights issued to each shareholder;
the number and terms of each share of our common stock, preferred stock, depositary shares or for debt securities which may be purchased per each subscription right;
the extent to which the subscription rights are transferable;
any provisions for adjustment of the number or amount of securities receivable upon exercise of the subscription rights or the exercise price of the subscription rights;
any other terms of the subscription rights, including the terms, procedures and limitations relating to the exchange and exercise of the subscription rights;
the date on which the right to exercise the subscription rights shall commence, and the date on which the subscription rights shall expire;
the extent to which the subscription rights may include an over-subscription privilege with respect to unsubscribed securities; and
if applicable, the material terms of any standby underwriting or purchase arrangement entered into by us in connection with the offering of subscription rights.
The description in the applicable prospectus supplement of any subscription rights we offer will not necessarily be complete and is subject to, and will be qualified in its entirety by reference to, the applicable subscription rights agreement and subscription rights certificate, which will be filed with the SEC in connection with any offering of subscription rights.
If we issue subscription rights, they will be governed by a separate subscription agent agreement that we will sign with a bank or trust company, as rights agent, that will be named in the applicable prospectus supplement.
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The rights agent will act solely as our agent and will not assume any obligation to any holders of subscription rights certificates or beneficial owners of subscription rights.
Rights of Subscribers
Holders of rights will have no rights as shareholders with respect to the shares of common stock or preferred stock for which the rights may be exercised until they have exercised their rights by payment in full of the exercise price and in the manner provided in the prospectus supplement, and such shares of common stock or preferred stock, as applicable, have been issued to such persons. Holders of rights will have no right to revoke their subscriptions or receive their monies back after they have completed and delivered the materials required to exercise their rights and have paid the exercise price to the subscription agent. All exercises of rights are final and cannot be revoked by the holder of rights.
Regulatory Limitations
We will not be required to issue any person or group of persons shares of our common stock or preferred stock pursuant to the rights offering if, in our sole opinion, such person would be required to give prior notice to or obtain prior approval from, any state or federal governmental authority to own or control such shares if, at the time the rights offering is scheduled to expire, such person has not obtained such clearance or approval in form and substance reasonably satisfactory to us.


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DESCRIPTION OF WARRANTS
We may issue warrants for the purchase of debt securities, preferred stock, common stock, other securities of the Company or any combination of the foregoing. A warrant is a security that gives the holder the right, upon exercise of the warrant, to purchase, for a specified exercise period, a specified number of the issuer’s other securities at a specified exercise price per share which may be subject to adjustment upon the occurrence of specified events. Warrants may be issued alone or together with securities offered by any prospectus supplement and may be attached to, or separate from, those securities. The particular terms of any warrants will be described more specifically in the prospectus supplement relating to such warrants.
The prospectus supplement relating to any warrants that we are offering will include specific terms relating to the offering. We will file the form of any warrant agreement with the SEC, and you should read the warrant agreement for provisions that may be important to you. The prospectus supplement will include some or all of the following information:
the title and specific designation of the warrants;
the aggregate number of warrants offered;
the amount of warrants outstanding, if any;
the designation, number and terms of the securities purchasable upon exercise of the warrants and procedures that will result in the adjustment of those numbers;
the exercise price or prices of the warrants;
the dates or periods during which the warrants are exercisable;
the designation and terms of any securities with which the warrants are issued;
if the warrants are issued as a unit with another security, the date, if any, on and after which the warrants and the other security will be separately transferable;
if the exercise price is not payable in U.S. Dollars, the foreign currency, currency unit or composite currency in which the exercise price is denominated;
any minimum or maximum amount of warrants that may be exercised at any one time;
the anti-dilution provisions of the warrants, if any;
if applicable, the identity of the warrant agent for the warrants and of any other depositaries, execution or paying agents, transfer agents, registrars or other agents;
any terms, procedures and limitations relating to the transferability, exchange or exercise of the warrants; and
any other material terms of the warrants.
Before exercising their warrants, holders of warrants will not have any of the rights of holders of the securities purchasable upon such exercise, including the right to receive dividends, if any, or payments upon our liquidation, dissolution or winding-up, or to exercise voting rights, if any.
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PLAN OF DISTRIBUTION
The Company may sell the offered securities from time to time:
directly to one or more purchasers;
through agents;
through dealers;
through underwriters;
directly to its shareholders; or
through a combination of any of these methods of sale.
The prospectus supplement relating to the offered securities will set forth the terms of the offering, including the name or names of any underwriters, dealers or agents, the initial offering price of the offered securities to the public and the use of proceeds from the sale, purchase price of the offered securities, estimated offering expenses, any underwriting discounts, commissions and other items constituting underwriters’ compensation, and any underwriting discounts, commissions and other allowances and reallowances paid to dealers or agents and any securities exchanges on which the offered securities may be listed. The anticipated date of delivery of offered securities will be set forth in the applicable prospectus supplement relating to each offer.
The Company may use one or more underwriters in the sale of the offered securities, in which case the offered securities will be acquired by the underwriter or underwriters for their own account and may be resold from time to time in one or more transactions either:
at a fixed price or prices, which may be changed from time to time;
at market prices prevailing at the time of sale;
at prices related to the prevailing market prices; or
at negotiated prices.
The Company may directly solicit offers to purchase offered securities. Agents designated by the Company from time to time may also solicit offers to purchase offered securities. Any agent designated by the Company, who may be deemed to be an “underwriter” as that term is defined in the Securities Act, involved in the offer or sale of the offered securities in respect of which this prospectus is delivered will be named, and any commissions payable by the Company to such agent will be set forth, in the prospectus supplement.
If a dealer is utilized in the sale of the offered securities in respect of which this prospectus and a related prospectus supplement is delivered, the Company will sell the offered securities to the dealer, as principal. The dealer, who may be deemed to be an “underwriter” as that term is defined in the Securities Act, may then resell the offered securities to the public at varying prices to be determined by the dealer at the time of resale.
If an underwriter is, or underwriters are, used in the sale, the Company will execute an underwriting agreement with the underwriters at the time of sale to the underwriters. The names of the underwriters will be set forth in the prospectus supplement, which, along with this prospectus, will be used by the underwriter to make resales of the offered securities in respect of which this prospectus is delivered to the public. In connection with the sale of offered securities, the underwriter may be deemed to have received compensation from the Company in the form of underwriting discounts or commissions and may also receive commissions from purchasers of offered securities for whom they may act as agents. Underwriters may also sell offered securities to or through dealers, and the dealers may receive compensation in the form of discounts, concessions or commissions from the underwriters and/or commissions from the purchasers for whom they may act as agents.
Underwriters or agents may make sales in privately negotiated transactions and/or any other method permitted by law, including sales deemed to be an “at-the-market” offering as defined in Rule 415 promulgated under the Securities Act, which includes sales made directly on the NASDAQ Global Select Market, the existing trading market for our common stock, or sales made to or through a market maker other than on an exchange.
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If so indicated in the applicable prospectus supplement, the Company will authorize underwriters, dealers or other persons to solicit offers by certain institutions to purchase offered securities from the Company at the public offering price set forth in the applicable prospectus supplement pursuant to delayed delivery contracts providing for payment and delivery on a future date or dates. Institutions with which these contracts may be made include commercial and savings banks, insurance companies, pension funds, investment companies, educational and charitable institutions and others. The obligations of any purchasers under any delayed delivery contract will not be subject to any conditions except that:
the purchase of the offered securities shall not at the time of delivery be prohibited under the laws of the jurisdiction to which the purchaser is subject; and
if the offered securities are also being sold to underwriters, the Company will have sold to the underwriters the offered securities not sold for delayed delivery.
The underwriters, dealers, agents and other persons will not have any responsibility in respect of the validity or performance of such contracts. The prospectus supplement relating to the contracts will set forth the price to be paid for offered securities pursuant to the contracts, the commission payable for solicitation of the contracts and the date or dates in the future for delivery of offered securities pursuant to the contracts.
Offered securities may also be offered and sold, if so indicated in the prospectus supplement, in connection with a remarketing upon their purchase, in accordance with a redemption or repayment pursuant to their terms, or otherwise, by one or more remarketing firms, acting as principals for their own accounts or as agents for the Company. Any remarketing firm will be identified and the terms of its agreement, if any, with the Company and its compensation will be described in the applicable prospectus supplement. Remarketing firms may be deemed to be underwriters in connection with their remarketing of offered securities.
Unless otherwise set forth in the applicable prospectus supplement, the obligations of underwriters to purchase the offered securities will be subject to certain conditions precedent and such underwriters will be obligated to purchase all such securities, if any are purchased. In connection with the offering of securities, we may grant to the underwriters an option to purchase additional securities to cover over-allotments at the initial public offering price, with an additional underwriting commission, as may be set forth in the accompanying prospectus supplement. If we grant any over-allotment option, the terms of such over-allotment option will be set forth in the prospectus supplement for such securities.
Any underwriter may engage in over-allotment, stabilizing transactions, short-covering transactions and penalty bids in accordance with Regulation M under the Exchange Act. Over-allotment involves sales in excess of the offering size, which create a short position. Stabilizing transactions permit bids to purchase the underlying security so long as the stabilizing bids do not exceed a specified maximum. Short-covering transactions involve purchases of the securities in the open market after the distribution is completed to cover short positions. Penalty bids permit the underwriters to reclaim a selling concession from a dealer when the securities originally sold by the dealer are purchased in a covering transaction to cover short positions. Those activities may cause the price of the securities to be higher than it would otherwise be. If commenced, the underwriters may discontinue any of the activities at any time.
Any person participating in the distribution of the offered securities will be subject to applicable provisions of the Exchange Act and the rules and regulations under the Exchange Act, including without limitation Regulation M, which may limit the timing of transactions involving the offered securities under this prospectus. Furthermore, Regulation M may restrict the ability of any person engaged in the distribution of such offered securities to engage in market-making activities with respect to the particular securities being distributed. All of the above may affect the marketability of the offered securities under this prospectus and the ability of any person or entity to engage in market-making activities with respect to such offered securities.
The Company, the underwriters or other agents may also engage in derivative transactions involving the offered securities. These derivatives may consist of short sale transactions and other hedging activities. The underwriters or agents may acquire a long or short position in the offered securities, hold or resell securities acquired and purchase options or futures on the securities and other derivative instruments with returns linked to or related to changes in the price of the offered securities. In order to facilitate these derivative transactions, we may enter into security lending or repurchase agreements with the underwriters or agents. The underwriters or agents may effect the derivative transactions through sales of the securities to the public, including short sales, or by lending the offered securities in order to facilitate short sale transactions by others. The underwriters or agents may also use the offered securities purchased or borrowed from us or others (or, in the case of derivatives, offered securities received from us in settlement of those derivatives) to directly or indirectly settle sales of the offered securities or close out any related open borrowings of the offered securities.
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We expect that any agreements we may have with underwriters, dealers and agents will include provisions indemnifying them against certain civil liabilities, including certain liabilities under the Securities Act, or providing for contribution with respect to payments that they may be required to make. An underwriter, dealer or agent, or any of their affiliates, may be customers of, or otherwise engage in transactions with or perform services for us in the ordinary course of business.
The specific terms of any lock-up provisions with respect to any given offering will be described in the applicable prospectus supplement.
Under the securities law of various states, the offered securities under this prospectus may be sold in those states only through registered or licensed brokers or dealers. In addition, in various states the offered securities under this prospectus may not be offered and sold unless such securities have been registered or qualified for sale in the state or an exemption from such registration or qualification is available and is complied with.

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LEGAL MATTERS


Certain legal matters in connection with any offering of securities made by this prospectus will be passed upon for us by Hunton Andrews Kurth LLP, Dallas, Texas, and with respect to matters of Massachusetts law, by Nelson Mullins Riley & Scarborough LLP, Boston, Massachusetts. If the securities are being distributed in an underwritten offering, certain legal matters will be passed upon for the underwriters by counsel identified in the related prospectus supplement.
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EXPERTS
The consolidated financial statements of Enterprise Bancorp, Inc. as of December 31, 2022 and 2021, and for each of the years in the three-year period ended December 31, 2022, and the effectiveness of internal control over financial reporting as of December 31, 2022, incorporated in this Prospectus by reference from the Enterprise Bancorp, Inc. Annual Report on Form 10-K for the year ended December 31, 2022, have been audited by RSM US LLP, an independent registered public accounting firm, as stated in their reports thereon incorporated herein by reference, and have been incorporated in this Prospectus and Registration Statement in reliance upon such reports and upon the authority of such firm as experts in accounting and auditing.
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image_0.jpg

$100,000,000

Debt Securities
Common Stock
Preferred Stock
Depositary Shares
Subscription Rights
Warrants


PART II
INFORMATION NOT REQUIRED IN PROSPECTUS

Item 14. Other Expenses of Issuance and Distribution.
Estimated fees and expenses (except in the case of a registration fee), other than underwriting discounts and commissions, payable by the Company in connection with the issuance and distribution of the offered securities are as follows:
SEC Registration Fee$11,020.00
Accounting Fees and Expenses(1)
Legal Fees and Expenses(1)
Printing Expenses(1)
Miscellaneous Expenses(1)
Total$          (1)

(1)These fees are calculated based on the numbers of issuances and amount of securities offered and, accordingly, cannot be estimated at this time.


Item 15. Indemnification of Directors and Officers
Chapter 156D, Part 8, Subdivision E of the Massachusetts General Laws (the “MGL”), provides that a corporation may, subject to certain limitations, indemnify its directors, officers, employees and other agents, and individuals serving with respect to any employee benefit plan, and must, in certain cases, indemnify a director or officer for his reasonable costs if he is wholly successful in his defense in a proceeding to which he was a party because he was a director or officer of the corporation. In certain circumstances, a court may order a corporation to indemnify its officers or directors or advance their expenses. MGL Chapter 156D, Section 8.58 allows a corporation to limit or expand its obligation to indemnify its directors, officers, employees and agents in the corporation’s articles of organization, a bylaw adopted by the shareholders, or a contract adopted by its board of directors or shareholders.
Our second amended and restated by-laws provides that our directors and officers will be indemnified by the Company to the fullest extent permitted by the MGL against all expenses incurred in connection with their service for or on behalf of the Company. These provisions are in addition to all other rights which any officer, non-officer employee, or director may be entitled to as a matter of law. The full text of Article VI of the second amended and restated by-laws is set forth below.
ARTICLE VI
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INDEMNIFICATION
SECTION 1. Definitions. For purposes of this Article: (a) “Officer” means any person who serves or has served as a Director of the Corporation or in any other office filled by election or appointment by the shareholders or the Board of Directors and any heirs or personal representatives of such person; (b) “Non-Officer Employee” means any person who serves or has served as an employee of the Corporation but who is not or was not an Officer and any heirs or personal representatives of such person; (c) “Proceeding” means any action, suit or proceeding, civil or criminal, brought or threatened in or before any court, tribunal, administrative or legislative body or agency and any claim which could be the subject of a Proceeding; and (d) “Expenses” means any liability fixed by a judgment, order, decree or award in a Proceeding, any amount reasonably paid in settlement of a Proceeding and any professional fees or other disbursements reasonably incurred in a Proceeding.
SECTION 2. Officers. Except as provided in Sections 4 and 5 of this Article VI, each Officer of the Corporation shall be indemnified by the Corporation against all Expenses incurred by such Officer in connection with any Proceedings in which such Officer is involved as a result of serving or having served (a) as an Officer or employee of the Corporation; (b) as a director, officer or employee of any corporation, organization, partnership, joint venture, trust or other entity the majority of the equity of which is owned by the Corporation; or (c) in any capacity with any other corporation, organization, partnership, joint venture, trust or other entity at the request or direction of the Board of Directors.
SECTION 3. Non-Officer Employees. Except as provided in Sections 4 and 5 of this Article VI, each Non-Officer Employee of the Corporation may, in the discretion of the Board of Directors, be indemnified against any or all Expenses incurred by such Non-Officer Employee in connection with any Proceeding in which such Non-Officer Employee is involved as a result of serving or having served (a) as a Non-Officer Employee of the Corporation; (b) as a director, officer or employee of any corporation, organization, partnership, joint venture, trust or other entity the majority of the equity of which is owned by the Corporation; or (c) in any capacity with any other corporation, organization, partnership, joint venture, trust or other entity at the request or direction of the Corporation.
SECTION 4. Service at the Request or Direction of the Board of Directors. No indemnification shall be provided to an Officer or Non-Officer Employee with respect to serving or having served in any of the capacities described in Section 2(c) or 3(c) above unless the following two conditions are met: (a) such service was requested or directed in each specific case by vote of the Board of Directors prior to the occurrence of the event to which the indemnification relates, and (b) the Corporation maintains insurance coverage for the type of indemnification sought. In no event shall the Corporation be liable for indemnification under Section 2(c) or 3(c) for any amount in excess of the proceeds of insurance received with respect to such coverage as the Corporation in its discretion may elect to carry. The Corporation may but shall not be required to maintain insurance coverage with respect to indemnification under Section 2(c) or 3(c) above.
Notwithstanding any other provision of this Section 4, the Board of Directors may provide an Officer or Non-Officer Employee with indemnification under Section 2(c) or 3(c) above as to a specific Proceeding even if one or both of the two conditions specified in this Section 4 have not been met and even if the amount of the indemnification exceeds the amount of the proceeds of any insurance which the Corporation may have elected to carry, provided that the Board of Directors in its discretion determines it to be in the best interests of the Corporation to do so.
SECTION 5. Good Faith. Nothing hereinbefore to the contrary, no indemnification shall be provided to an Officer or to a Non-Officer Employee with respect to a matter as to which such person shall have been adjudicated in any Proceeding not to have acted in good faith in the reasonable belief that the action of such person was in the best interests of the Corporation or that such person’s conduct was at least not opposed to the best interests of the Corporation. In the event that a Proceeding is compromised or settled so as to impose any liability or obligation upon an Officer or Non-Officer, no indemnification shall be provided to said Officer or Non-Officer Employee with respect to a matter if there be a determination that with respect to such matter such person did not act in good faith in the reasonable belief that the action of such person was in the best interests of the Corporation or that such person’s conduct was at least not opposed to the best interests of the Corporation; provided, however, the Corporation shall have no obligation to indemnify any Officer or Non-Officer Employee, whether or not such person satisfied the standard of conduct set forth in this section, with respect to any Proceeding in which (i) such person was, is or is threatened to be named a defendant or respondent, (ii) the Corporation is a claimant and (iii) a majority of the Board of Directors authorized the Corporation to act in the capacity of a claimant with respect to such person. The determination shall be made by a majority vote of those Directors who are not involved in such Proceeding. However, if more than half of the Directors are involved in such Proceeding, the determination shall be made by a majority vote of a committee of three disinterested Directors chosen by the disinterested Directors at a regular or special meeting. If there are less than three disinterested Directors, the determination shall be based upon the opinion of the Corporation’s regular outside counsel, unless such counsel has been involved in any way in such Proceeding
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or in any matter that is the subject of or otherwise related in any way to such Proceeding, in which case the determination shall be based upon the opinion of an independent outside counsel that has no such prior involvement in the Proceeding or any related matter.
SECTION 6. Prior to Final Disposition. To the extent authorized by the Board of Directors, by the committee of Directors referred to in Section 5 of this Article VI or by the opinion of the counsel referred to in such Section 5, any indemnification provided for under this Article VI may include payment by the Corporation of Expenses incurred in defending a Proceeding in advance of the final disposition of such Proceeding upon receipt of (i) a written affirmation by the Officer or Non-Officer Employee seeking indemnification of his or her good faith belief that he or she has met the relevant standard of conduct described in Section 5 of this Article VI or that the proceeding involves conduct for which liability has been eliminated under a provision of the Articles of Organization, and (ii) a written undertaking by the Officer or Non-Officer Employee seeking indemnification to repay any funds advanced if such Officer or Non-Officer Employee shall be adjudicated or determined to be not entitled to indemnification under this Article VI.
SECTION 7. Insurance. The Corporation may purchase and maintain insurance to protect itself and any Officer or Non-Officer Employee against any liability of any character asserted against or incurred by the Corporation or any such Officer or Non-Officer Employee, or arising out of any such status, whether or not the Corporation would have the power to indemnify such person against such liability by law or under the provisions of this Article VI.
SECTION 8. Other Indemnification Rights. Nothing in this Article VI shall limit any lawful rights to indemnification existing independently of this Article VI.
SECTION 9. Merger or Consolidation. If the Corporation is merged into or consolidated with another corporation and the Corporation is not the surviving corporation, the surviving corporation shall assume the obligations of the Corporation under this Article VI with respect to any Proceeding arising out of or relating to any actions, transactions or facts occurring at or prior to the date of such merger or consolidation.
SECTION 10. Savings Clause. If this Article VI or any portion hereof shall be invalidated on any ground by any court of competent jurisdiction, then the Corporation shall nevertheless indemnify and advance expenses to each indemnitee as to any expenses (including reasonable attorneys’ fees), judgments, fines, liabilities, losses, and amounts paid in settlement in connection with any action, suit, proceeding or investigation, whether civil, criminal or administrative, including an action by or in the right of the Corporation, to the fullest extent permitted by any applicable portion of this Article VI that shall not have been invalidated and to the fullest extent permitted by applicable law.
SECTION 11. Subsequent Legislation. If the Massachusetts General Laws, or any successor statutory provisions, are amended after adoption of this Article VI to expand further the indemnification permitted to an indemnitee, then the Corporation shall indemnify all such persons to the fullest extent permitted by the Massachusetts General Laws, or any successor statutory provisions, as so amended.
The indemnification provisions in our second amended and restated by-laws and the applicable provisions of the MGL may be sufficiently broad to permit indemnification of our directors and officers for liabilities (including reimbursement of expenses incurred) arising under the Securities Act.
Any underwriting agreement that we might enter into will provide for indemnification by any underwriters of us, our directors, our officers who sign the registration statement and our controlling persons for some liabilities, including liabilities arising under the Securities Act.

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Item 16. Exhibits
(a) Exhibits
1.1*
1.2*Form of Placement Agent Agreement.
3.1.1
3.1.2
3.1.3
3.2
4.1
4.2
4.3
4.4
4.5*Form of Senior Debt Security.
4.6*Form of Subordinated Debt Security.
4.7***
4.8***
4.9*Form of Subordinated Note Purchase Agreement.
4.10
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4.11*Form of Articles of Amendment to the Restated Articles of Organization for Series of Preferred Stock.
4.12*Form of Preferred Stock Certificate.
4.13***
4.14*Form of Subscription Certificate.
4.15*Form of Subscription Agent Agreement.
4.15*Form of Warrant Agreement.
5.1***
5.2***
23.1***
23.2***Consent of Hunton Andrews Kurth LLP (included in Exhibit 5.1).
23.3***Consent of Nelson Mullins Riley & Scarborough LLP (included in Exhibit 5.2).
24.1***Power of Attorney (included on original signature page to this registration statement).
25.1**Form T-1 of Trustee for the Indenture for Senior Debt Securities.
25.2**Form T-1 of Trustee for the Indenture for Subordinated Debt Securities.
107***
                

*    To be filed, if necessary, by amendment to the registration statement or incorporated by reference to a Current Report on Form 8-K in connection with the offering of securities registered hereunder.
**     To be filed separately pursuant to Section 305(b)(2) of the Trust Indenture Act of 1939.
*** Previously filed.

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Item 17. Undertakings.
(a)    The undersigned registrant hereby undertakes:
(1)    To file, during any period in which offers or sales are being made, a post-effective amendment to this registration statement:
(i)    to include any prospectus required by Section 10(a)(3) of the Securities Act of 1933;
(ii)    to reflect in the prospectus any facts or events arising after the effective date of the registration statement (or the most recent post-effective amendment thereof) which, individually or in the aggregate, represent a fundamental change in the information set forth in the registration statement. Notwithstanding the foregoing, any increase or decrease in volume of securities offered (if the total dollar value of securities offered would not exceed that which was registered) and any deviation from the low or high end of the estimated maximum offering range may be reflected in the form of prospectus filed with the Commission pursuant to Rule 424(b) if, in the aggregate, the changes in volume and price represent no more than a 20 percent change in the maximum aggregate offering price set forth in the “Calculation of Registration Fee” table in the effective registration statement; and
(iii)    to include any material information with respect to the plan of distribution not previously disclosed in the registration statement or any material change to such information in the registration statement;
provided, however, that the undertakings set forth in paragraphs (a)(1)(i), (a)(1)(ii) and (a)(1)(iii) do not apply if the information required to be included in a post-effective amendment by those paragraphs is contained in reports filed with or furnished to the Commission by the registrant pursuant to Section 13 or Section 15(d) of the Securities Exchange Act of 1934 that are incorporated by reference in the registration statement, or is contained in a form of prospectus filed pursuant to Rule 424(b) that is part of the registration statement.
(2)    That, for the purpose of determining any liability under the Securities Act of 1933, each such post-effective amendment shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof.
(3)    To remove from registration by means of a post-effective amendment any of the securities being registered which remain unsold at the termination of the offering.
(4)    That, for the purpose of determining liability under the Securities Act of 1933 to any purchaser:
(i)    Each prospectus filed by the registrant pursuant to Rule 424(b)(3) shall be deemed to be part of the registration statement as of the date the filed prospectus was deemed part of and included in the registration statement; and
(ii)    Each prospectus required to be filed pursuant to Rule 424(b)(2), (b)(5), or (b)(7) as part of a registration statement in reliance on Rule 430B relating to an offering made pursuant to Rule 415(a)(1)(i), (vii), or (x) for the purpose of providing the information required by Section 10(a) of the Securities Act of 1933 shall be deemed to be part of and included in the registration statement as of the earlier of the date such form of prospectus is first used after effectiveness or the date of the first contract of sale of securities in the offering described in the prospectus. As provided in Rule 430B, for liability purposes of the issuer and any person that is at that date an underwriter, such date shall be deemed to be a new effective date of the registration statement relating to the securities in the registration statement to which that prospectus relates, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof. Provided, however, that no statement made in a registration statement or
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prospectus that is part of the registration statement or made in a document incorporated or deemed incorporated by reference into the registration statement or prospectus that is part of the registration statement will, as to a purchaser with a time of contract of sale prior to such effective date, supersede or modify any statement that was made in the registration statement or prospectus that was part of the registration statement or made in any such document immediately prior to such effective date.
(5)    That, for the purpose of determining liability of a registrant under the Securities Act of 1933 to any purchaser in the initial distribution of the securities, the undersigned registrant undertakes that in a primary offering of securities of the undersigned registrant pursuant to this registration statement, regardless of the underwriting method used to sell the securities to the purchaser, if the securities are offered or sold to such purchaser by means of any of the following communications, the undersigned registrant will be a seller to the purchaser and will be considered to offer or sell such securities to such purchaser:
(i)    Any preliminary prospectus or prospectus of an undersigned registrant relating to the offering required to be filed pursuant to Rule 424;
(ii)    Any free writing prospectus relating to the offering prepared by or on behalf of an undersigned registrant or used or referred to by an undersigned registrant;
(iii)    The portion of any other free writing prospectus relating to the offering containing material information about an undersigned registrant or its securities provided by or on behalf of an undersigned registrant; and
(iv)    Any other communication that is an offer in the offering made by an undersigned registrant to the purchaser.
(b)    That, for purposes of determining any liability under the Securities Act of 1933, each filing of the registrant’s annual report pursuant to Section 13(a) or Section 15(d) of the Securities Exchange Act of 1934 (and, where applicable, each filing of an employee benefit plan’s annual report pursuant to Section 15(d) of the Securities Exchange Act of 1934) that is incorporated by reference in the registration statement shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof.
(c)    Insofar as indemnification for liabilities arising under the Securities Act of 1933 may be permitted to directors, officers and controlling persons of the registrant pursuant to the foregoing provisions, or otherwise, the registrant has been advised that in the opinion of the Securities and Exchange Commission such indemnification is against public policy as expressed in the Act and is, therefore, unenforceable. In the event that a claim for indemnification against such liabilities (other than the payment by the registrant of expenses incurred or paid by a director, officer or controlling person of the registrant in the successful defense of any action, suit or proceeding) is asserted by such director, officer or controlling person in connection with the securities being registered, the registrant will, unless in the opinion of its counsel the matter has been settled by controlling precedent, submit to a court of appropriate jurisdiction the question whether such indemnification by it is against public policy as expressed in the Act and will be governed by the final adjudication of such issue.
(d)    The undersigned registrant hereby undertakes to file an application for the purpose of determining the eligibility of the trustee to act under subsection (a) of Section 310 of the Trustee Indenture Act in accordance with the rules and regulations prescribed by the Commission under Section 305(b)(2) of the Trust Indenture Act.
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SIGNATURES
    Pursuant to the requirements of the Securities Act of 1933, the registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-3 and has duly caused this registration statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Lowell, Commonwealth of Massachusetts, on August 23, 2023.
ENTERPRISE BANCORP, INC.


By:    /s/ Joseph R. Lussier                    
    Joseph R. Lussier
    Executive Vice President, Chief Financial Officer
    and Treasurer


Pursuant to the requirements of the Securities Act of 1933, this registration statement has been signed by the following persons in the capacities and on the dates indicated.
NameTitleDate
*ChairmanAugust 23, 2023
George L. Duncan
*DirectorAugust 23, 2023
Kenneth S. Ansin
*DirectorAugust 23, 2023
Gino J. Baroni
/s/ John P. Clancy, Jr.Director, Chief Executive OfficerAugust 23, 2023
John P. Clancy, Jr.
*DirectorAugust 23, 2023
John R. Clementi
*Lead Director, Vice ChairmanAugust 23, 2023
James F. Conway, III
*DirectorAugust 23, 2023
Carole A. Cowan
*DirectorAugust 23, 2023
Normand E. Deschene
*DirectorAugust 23, 2023
John T. Grady, Jr.
*DirectorAugust 23, 2023
Mary Jane King
*Director, SecretaryAugust 23, 2023



John A. Koutsos
*DirectorAugust 23, 2023
Joseph C. Lerner
*DirectorAugust 23, 2023
Shelagh E. Mahoney
*Director, PresidentAugust 23, 2023
Richard W. Main
*DirectorAugust 23, 2023
Jacqueline F. Moloney
*DirectorAugust 23, 2023
Michael T. Putziger
*DirectorAugust 23, 2023
Carol L. Reid
*DirectorAugust 23, 2023
Nickolas Stavropoulos
/s/ Joseph R. LussierExecutive Vice President,August 23, 2023
Joseph R. LussierChief Financial Officer and Treasurer
/s/ Michael K. SullivanAccounting Director of the BankAugust 23, 2023
Michael K. Sullivan
* By: /s/ Joseph R. Lussier
    Joseph R. Lussier
    Attorney-in-Fact
    August 23, 2023


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