HBAN Huntington Bancshares Inc

DESCRIPTION OF NOTES

General

The notes will be a series of our senior debt securities. The notes will be issued under a senior indenture, dated as of July 30, 2019, as amended or supplemented from time to time and as amended and supplemented by a supplemental indenture, to be dated as of May 17, 2022, between us and Deutsche Bank Trust Company Americas, a New York banking corporation, as trustee. Throughout this description of the notes, we refer to both the senior indenture and supplemental indenture together as the “indenture.” The trustee’s main role is to enforce your rights against us if we default. The following description of the notes may not be complete and is subject to and qualified in its entirety by reference to the indenture. Wherever we refer to particular sections or defined terms of the indenture, it is our intent that those sections or defined terms will be incorporated by reference in this prospectus supplement.

The notes will be issued in fully registered book-entry form without coupons and in denominations of $2,000 and integral multiples of $1,000 in excess thereof. We do not intend to apply for the listing of the notes on any securities exchange. The notes will be unsecured and unsubordinated and will rank equally among themselves and with all of our other unsecured and unsubordinated indebtedness. The notes will not be guaranteed by any of our subsidiaries. Our subsidiaries may, without notice or consent of the holders of the notes, incur additional debt or liabilities in the future, all of which would rank structurally senior to the notes. Huntington may from time to time, without notice or consent of the holders of the notes, incur additional senior indebtedness ranking equally with the notes, as well as additional subordinated indebtedness ranking junior to the notes. As of March 31, 2022, the aggregate amount of all debt and other liabilities of our subsidiaries, including deposits, was approximately $158 billion.

Since we are a holding company, our rights and the rights of our creditors, including holders of the notes, to participate in the assets of any of our subsidiaries upon the liquidation or reorganization of any of our subsidiaries will be subject to prior claims of the creditors of any such subsidiary, including, in the case of the Bank, its depositors, except to the extent that we are a creditor of such subsidiary with recognized claims against the subsidiary. Claims on our subsidiaries by creditors other than us may include claims with respect to long-term debt and substantial obligations with respect to deposit liabilities, federal funds purchased, securities sold under repurchase agreements, other short-term borrowings and various other financial obligations.

The notes will be subject to defeasance under the conditions described below in “—Discharge, Defeasance and Covenant Defeasance.”

The notes are not savings accounts, deposits or other obligations of any of our bank or non-bank subsidiaries and are not insured by the FDIC, the Federal Reserve or any other governmental agency or instrumentality.

We will initially issue $400,000,000 aggregate principal amount of fixed-to-floating rate notes due May 17, 2033 (the “notes”). We may, without the consent of the holders of the notes, increase the principal amount of the notes by issuing such additional notes in the future with the same terms and conditions, except for any differences in the issue date, the issue price and interest accrued prior to the date of issuance of such additional notes, and with the same CUSIP number as the notes offered by this prospectus supplement; provided that if any such additional notes are not fungible with the notes offered by this prospectus supplement for U.S. federal income tax purposes, such additional notes will be issued under a separate CUSIP number. The notes offered by this prospectus supplement and any additional notes of such series would rank equally and ratably and would be treated as a single series for all purposes under the indenture.

The notes will mature on May 17, 2033 (the “Maturity Date”), unless the notes is prior redeemed in whole or in part as described below under “—Optional Redemption.” The notes will not be subject to repayment at the option of the holder at any time prior to maturity and will not be entitled to any sinking fund.

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Payments of principal and interest to owners of the book-entry interests described below are expected to be made in accordance with the procedures of The Depository Trust Company and its participants, including Clearstream Banking, société anonyme, and Euroclear Bank S.A./N.V., as operator of the Euroclear System.

Interest

From (and including) May 17, 2022 (the “Issue Date”) to (but excluding) May 17, 2032 (the “Fixed Rate Period”), interest on the notes will be payable at a rate of 5.023% per annum (the “Initial Interest Rate”). With respect to the Fixed Rate Period, interest on the notes will be payable semi-annually in arrears on each May 17 and November 17, commencing on November 17, 2022, and ending on May 17, 2032 (each, a “Fixed Rate Period Interest Payment Date”).

From (and including) May 17, 2032 to (but excluding) the Maturity Date (the “Floating Rate Period”), the interest rate on the notes will be equal to the Benchmark (as defined below) plus 205 basis points per annum (the “Margin”). During the Floating Rate Period, interest on the notes will be payable quarterly in arrears on August 17, 2032, November 17, 2032, February 17, 2033 and on the Maturity Date (each a “Floating Rate Period Interest Payment Date”).

Fixed Rate Period:

Floating Rate Period:

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If the Maturity Date or date of redemption or repayment of the notes is not a Business Day, we may pay interest and principal on the next succeeding Business Day, but interest on that payment will not accrue during the period from and after the Maturity Date or date of redemption or repayment of the notes. If a date of redemption or repayment of the notes falls within the Floating Rate Period but does not occur on a Floating Rate Period Interest Payment Date, (i) the related Interest Determination Date shall be deemed to be the date that is two U.S. Government Securities Business Days prior to such date of redemption or repayment, (ii) the related Observation Period shall be deemed to end on (and exclude) the second U.S. Government Securities Business Day falling prior to such date of redemption or repayment, (iii) the Floating Rate Interest Period will be deemed to be shortened accordingly and (iv) corresponding adjustments will be deemed to be made to the Compounded SOFR Index Rate formula (or applicable benchmark).

The regular record dates for the notes will be the fifteenth calendar day preceding each Floating Rate Period Interest Payment Date or Fixed Rate Period Interest Payment Date, as applicable, whether or not a Business Day.

Calculation of the Benchmark

The “Benchmark” means, initially, the Compounded SOFR Index Rate; provided that if a Benchmark Transition Event and related Benchmark Replacement Date have occurred with respect to SOFR or the then-current Benchmark, then “Benchmark” means the Benchmark Replacement.

“Compounded SOFR Index Rate” means, in relation to a Floating Rate Interest Period, the rate computed by the calculation agent in accordance with the following formula (and the resulting percentage will be rounded if necessary to the nearest seventh decimal place, with 0.00000005 being rounded upwards):

Where:

“d” is the number of calendar days from (and including) SOFR IndexStart to (but excluding) SOFR IndexEnd (being the number of calendar days in the Observation Period);

“SOFR IndexStart” is the SOFR Index value for the day which is two U.S. Government Securities Business Days preceding the first date of the relevant Floating Rate Interest Period;

“SOFR IndexEnd” is the SOFR Index value for the day which is two U.S. Government Securities Business Days preceding the Floating Rate Period Interest Payment Date relating to such Floating Rate Interest Period;

“SOFR Index” means, with respect to any U.S. Government Securities Business Day:

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“SOFR” means, with respect to any U.S. Government Securities Business Day, the rate determined by the calculation agent in accordance with the following provisions:

“NY Federal Reserve’s website” means the website of the Federal Reserve Bank of New York (the “NY Federal Reserve”), currently at http://www.newyorkfed.org, or any successor website of the NY Federal Reserve or the website of any successor administrator of the Secured Overnight Financing Rate. The foregoing website is an inactive textual reference only, meaning that the information contained on the website is not part of this prospectus supplement or the accompanying prospectus or incorporated herein or therein.

“Observation Period” means, in respect of each Floating Rate Interest Period, the period from (and including) the day falling two U.S. Government Securities Business Days prior to the first day of the relevant Floating Rate Interest Period to (but excluding) the day falling two U.S. Government Securities Business Days prior to the relevant Floating Rate Period Interest Payment Date for such Floating Rate Interest Period.

“SOFR Administrator” means the NY Federal Reserve (or a successor administrator of SOFR).

“SOFR Administrator’s Website” means the website of the NY Federal Reserve, currently at http://www.newyorkfed.org, or any successor source. The foregoing website is an inactive textual reference only, meaning that the information contained on the website is not part of this prospectus supplement or the accompanying prospectus or incorporated herein or therein.

“SOFR Determination Time” means, with respect to any U.S. Government Securities Business Day, 3:00 p.m. (New York City time) on such U.S. Government Securities Business Day.

“U.S. Government Securities Business Day” means any day except for a Saturday, Sunday or a day on which the Securities Industry and Financial Markets Association (SIFMA) recommends that the fixed income departments of its members be closed for the entire day for purposes of trading in U.S. government securities.

Notwithstanding clauses (1) and (2) of the definition of “SOFR” above, if we or our designee (in consultation with us) determine on or prior to the relevant Interest Determination Date that a Benchmark Transition Event and related Benchmark Replacement Date have occurred with respect to SOFR, then the “Benchmark Transition Provisions” set forth below will thereafter apply to all determinations of the rate of interest payable on the notes during the Floating Rate Period.

In accordance with and subject to the Benchmark Transition Provisions, after a Benchmark Transition Event and related Benchmark Replacement Date have occurred, the amount of interest that will be payable for each interest period on the notes during the Floating Rate Period will be determined by reference to a rate per annum equal to the Benchmark Replacement plus the Margin.

“designee” means our affiliate or any other agent.

“Reference Time” means (1) if the Benchmark is Compounded SOFR Index Rate, the SOFR Determination Time, and (2) if the Benchmark is not Compounded SOFR Index Rate, the time determined by us or our designee (in consultation with us) in accordance with the Benchmark Replacement Conforming Changes.

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SOFR Index Unavailability

If SOFR IndexStart or SOFR IndexEnd is not published on the relevant Interest Determination Date and a Benchmark Transition Event and its related Benchmark Replacement Date have not occurred with respect to SOFR, “Compounded SOFR Index Rate” will mean, for the relevant interest period for which such index is not available, the rate of return on a daily compounded interest investment calculated in accordance with the formula for SOFR Averages, and definitions required for such formula, published on the SOFR Administrator’s Website at https://www.newyorkfed.org/markets/treasury-repo-reference-rates-information (or such successor website). For the purposes of this provision, references in the SOFR Averages compounding formula and related definitions to “calculation period” shall be replaced with “Observation Period” and the words “that is, 30-, 90-, or 180- calendar days” shall be removed. If the daily SOFR (“SOFRi”) does not so appear for any day, “i” in the Observation Period, SOFRi for such day “i” shall be SOFR published in respect of the first preceding U.S. Government Securities Business Day for which SOFR was published on the SOFR Administrator’s Website.

Benchmark Transition Provisions

If we or our designee (in consultation with us) determine that a Benchmark Transition Event and related Benchmark Replacement Date have occurred prior to the applicable Reference Time in respect of any determination of the Benchmark on any date, the applicable Benchmark Replacement will replace the then-current Benchmark for all purposes relating to the notes during the Floating Rate Period in respect of such determination on such date and all determinations on all subsequent dates; provided that, if we or our designee (in consultation with us) are unable to or do not determine a Benchmark Replacement in accordance with the provisions below prior to 5:00 p.m. (New York time) on the relevant Interest Determination Date, the interest rate for the related Floating Rate Interest Period will be equal to the interest rate in effect for the immediately preceding Floating Rate Interest Period or, in the case of the Interest Determination Date prior to the first Floating Rate Period Interest Payment Date, the Initial Interest Rate.

“Benchmark Replacement” means the first alternative set forth in the order below that can be determined by us or our designee (in consultation with us) as of the Benchmark Replacement Date:

In connection with the implementation of a Benchmark Replacement, we or our designee (in consultation with us) will have the right to make changes to (1) any Interest Determination Date, Floating Rate Period Interest Payment Date, Reference Time, business day convention or Floating Rate Interest Period, (2) the manner, timing and frequency of determining the rate and amounts of interest that are payable on the notes during the Floating Rate Period and the conventions relating to such determination and calculations with respect to interest, (3) rounding conventions, (4) tenors and (5) any other terms or provisions of the notes during the Floating Rate Period, in each case that we or our designee (in consultation with us) determine, from time to time, to be appropriate to reflect the determination and implementation of such Benchmark Replacement in a manner substantially consistent with market practice (or, if we or our designee (in consultation with us) decide that implementation of any portion of such market practice is not administratively feasible or determine that no market practice for use of the Benchmark Replacement exists, in such other manner as we or our designee (in

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consultation with us) determine is appropriate (acting in good faith)) (the “Benchmark Replacement Conforming Changes”). Any Benchmark Replacement Conforming Changes will apply to the notes for all future Floating Rate Interest Periods.

We will promptly give notice of the determination of the Benchmark Replacement, the Benchmark Replacement Adjustment and any Benchmark Replacement Conforming Changes to the trustee, the paying agent, the calculation agent and the holders of notes; provided that failure to provide such notice will have no impact on the effectiveness of, or otherwise invalidate, any such determination.

All determinations, decisions, elections and any calculations made by us or our designee for the purposes of determining the Benchmark Replacement, the Benchmark Replacement Adjustment and any Benchmark Replacement Conforming Changes will be conclusive and binding on the holders of notes, us, the calculation agent, the trustee and the paying agent, absent manifest error. If made by our designee, such determinations, decisions, elections and calculations will be made after consulting with us, and our designees will not make any such determination, decision, election or calculation to which we object. Notwithstanding anything to the contrary in the Indenture or the notes, any determinations, decisions, calculations or elections made in accordance with this provision will become effective without consent from the holders of notes or any other party.

Any determination, decision or election relating to the Benchmark will be made by us on the basis described above. The calculation agent shall have no liability for not making any such determination, decision or election. In addition, we may designate an entity (which may be our affiliate) to make any determination, decision or election that we have the right to make in connection with the determination of the Benchmark.

Notwithstanding any other provision of “Benchmark Transition Provisions” set forth above, no Benchmark Replacement will be adopted, nor will the applicable Benchmark Replacement Adjustment be applied, nor will any Benchmark Replacement Conforming Changes be made, if in our determination, the same could reasonably be expected to prejudice the qualification of the notes as eligible liabilities or loss absorbing capacity instruments for the purposes of the Relevant Rules.

Agreement with Respect to the Benchmark Replacement

By its acquisition of the notes, each holder of the notes (including each holder of a beneficial interest in the notes) (i) acknowledges, accepts, consents and agrees to be bound by our or our designee’s determination of a Benchmark Transition Event, a Benchmark Replacement Date, the Benchmark Replacement, the Benchmark Replacement Adjustment and any Benchmark Replacement Conforming Changes, including as may occur without any prior notice from us and without the need for us to obtain any further consent from such holder of the notes, (ii) will waive any and all claims, in law and/or in equity, against the trustee, the paying agent and the calculation agent or our designee for, agree not to initiate a suit against the trustee, the paying agent and the calculation agent or our designee in respect of, and agree that none of the trustee, the paying agent or the calculation agent or our designee will be liable for, the determination of or our failure or delay to determine any Benchmark Transition Event, any Benchmark Replacement Date, any Benchmark Replacement, any Benchmark Replacement Adjustment and any Benchmark Replacement Conforming Changes, and any losses suffered in connection therewith and (iii) will agree that none of the trustee, the paying agent or the calculation agent or our designee will have any obligation to determine, confirm or verify any Benchmark Transition Event, any Benchmark Replacement Date, any Benchmark Replacement, any Benchmark Replacement Adjustment and any Benchmark Replacement Conforming Changes (including any adjustments thereto), including in the event of any failure or delay by us to determine any Benchmark Transition Event, any Benchmark Replacement Date, any Benchmark Replacement, any Benchmark Replacement Adjustment and any Benchmark Replacement Conforming Changes.

Except as set forth therein, all percentages resulting from any calculation of any interest rate for the notes will be rounded, if necessary, to the nearest one hundred thousandth of a percentage point, with

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five one-millionths of a percentage point rounded upward (e.g., 9.876545% (or .09876545) would be rounded to 9.87655% (or .0987655)), and all dollar amounts would be rounded to the nearest cent, with one-half cent being rounded upward.

Definitions

Capitalized terms used but not otherwise defined herein shall have the following meanings:

“Benchmark Replacement Adjustment” means the first alternative set forth in the order below that can be determined by us or our designee (in consultation with us) as of the Benchmark Replacement Date:

“Benchmark Replacement Date” means the earliest to occur of the following events with respect to the then-current Benchmark:

For the avoidance of doubt, if the event giving rise to the Benchmark Replacement Date occurs on the same day as, but earlier than, the Reference Time in respect of any determination, the Benchmark Replacement Date will be deemed to have occurred prior to the Reference Time for such determination.

“Benchmark Transition Event” means the occurrence of one or more of the following events with respect to the then-current Benchmark:

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“Business Day” means any day, other than a Saturday or Sunday, that is neither a legal holiday nor a day on which banking institutions in the City of New York are authorized or required by law, regulation or executive order to close.

“Corresponding Tenor” with respect to a Benchmark Replacement means a tenor (including overnight) having approximately the same length (disregarding business day adjustments) as the applicable tenor for the then-current Benchmark.

“ISDA Fallback Rate” means the rate that would apply for derivatives transactions referencing the ISDA Definitions to be effective upon the occurrence of an index cessation date with respect to the Benchmark for the applicable tenor excluding the applicable ISDA Fallback Adjustment.

“ISDA Definitions” means the 2006 ISDA Definitions published by the International Swaps and Derivatives Association, Inc. (“ISDA”) or any successor thereto, as amended or supplemented from time to time, or any successor definitional booklet for interest rate derivatives published from time to time.

“ISDA Fallback Adjustment” means the spread adjustment (which may be a positive or negative value or zero) that would apply for derivatives transactions referencing the ISDA.

“Relevant Governmental Body” means the Federal Reserve and/or the NY Federal Reserve, or a committee officially endorsed or convened by the Federal Reserve and/or the NY Federal Reserve or any successor thereto.

“Relevant Rules” means, at any time, the laws, regulations, requirements, guidelines and policies relating to capital adequacy (including, without limitation, as to leverage, TLAC, or regulatory long term debt requirements) then in effect in the U.S. and applicable to us from time to time and any regulations, requirements, guidelines and policies relating to capital adequacy adopted from time to time (whether or not such requirements, guidelines or policies are applied generally or specifically to us or to us and any of our holding or subsidiary companies or any subsidiary of any such holding company).

“Unadjusted Benchmark Replacement” means the Benchmark Replacement excluding the Benchmark Replacement Adjustment.

Ranking

The notes will be senior unsecured obligations and will rank equally with all of our other unsecured and unsubordinated indebtedness and will be effectively subordinated to our existing and future secured indebtedness, to the extent of the value of the collateral securing such indebtedness, and structurally subordinated to the existing and future indebtedness of our subsidiaries. Because we are a holding company, our right to participate in any distribution of the assets of our banking or non-banking subsidiaries, upon a subsidiary’s dissolution, winding-up, liquidation or reorganization or otherwise, and thus the ability of a holder of notes to benefit indirectly from such distribution, is subject to prior claims of creditors of any such subsidiary, except to the extent that we may be a creditor of that subsidiary and our claims are recognized. There are legal limitations on the extent to which some of our subsidiaries, including the Bank, may extend credit, pay dividends or otherwise supply funds to, or engage in transactions with, us or some of our other subsidiaries. Our subsidiaries are separate and distinct legal entities and have no obligation to pay any amounts due on the notes or to provide us with funds to pay our obligations on the notes, whether by dividends, distributions, loans or other payments. Our subsidiaries may, without notice or consent of the holders of the notes, incur additional debt and liabilities in the future, all of which would rank structurally senior to the notes. As of March 31, 2022, our subsidiaries had, in the aggregate, outstanding debt and other liabilities, including deposits, of approximately $158 billion. All of

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such debt and other liabilities would rank structurally senior to the notes in case of liquidation or otherwise. As of March 31, 2022, Huntington Bancshares Incorporated (parent company only) had approximately $2.0 billion of outstanding senior debt and approximately $1.0 billion of outstanding subordinated and junior subordinated debt.

Optional Redemption

On or after November 13, 2022 (180 days after the Issue Date) (or, if additional notes are issued, beginning 180 days after the Issue Date of such additional notes), and, prior to May 17, 2032 (one year prior to the Maturity Date (the “First Par Call Date”)), we may redeem the notes at our option, in whole or in part, at any time and from time to time, at a redemption price (expressed as a percentage of principal amount and rounded to three decimal places) equal to the greater of:

plus, in either case, accrued and unpaid interest thereon to the redemption date.

On the First Par Call Date, we may redeem the notes, in whole but not in part, or on or after February 17, 2033 (3 months prior to the Maturity Date), in whole or in part, at any time and from time to time, in each case at a redemption price equal to 100% of the principal amount of the notes being redeemed plus accrued and unpaid interest thereon to the redemption date. “Treasury Rate” means, with respect to any redemption date, the yield determined by us in accordance with the following two paragraphs.

The Treasury Rate shall be determined by us after 4:15 p.m., New York City time (or after such time as yields on U.S. government securities are posted daily by the Board of Governors of the Federal Reserve System), on the third Business Day preceding the redemption date based upon the yield or yields for the most recent day that appear after such time on such day in the most recent statistical release published by the Board of Governors of the Federal Reserve System designated as “Selected Interest Rates (Daily)—H.15” (or any successor designation or publication) (“H.15”) under the caption “U.S. government securities–Treasury constant maturities–Nominal” (or any successor caption or heading) (“H.15 TCM”). In determining the Treasury Rate, we shall select, as applicable: (1) the yield for the Treasury constant maturity on H.15 exactly equal to the period from the redemption date to the First Par Call Date (the “Remaining Life”); or (2) if there is no such Treasury constant maturity on H.15 exactly equal to the Remaining Life, the two yields – one yield corresponding to the Treasury constant maturity on H.15 immediately shorter than and one yield corresponding to the Treasury constant maturity on H.15 immediately longer than the Remaining Life – and shall interpolate to the First Par Call Date on a straight-line basis (using the actual number of days) using such yields and rounding the result to three decimal places; or (3) if there is no such Treasury constant maturity on H.15 shorter than or longer than the Remaining Life, the yield for the single Treasury constant maturity on H.15 closest to the Remaining Life. For purposes of this paragraph, the applicable Treasury constant maturity or maturities on H.15 shall be deemed to have a maturity date equal to the relevant number of months or years, as applicable, of such Treasury constant maturity from the redemption date.

If on the third Business Day preceding the redemption date H.15 TCM or any successor designation or publication is no longer published, we shall calculate the Treasury Rate based on the rate per annum equal to the semi-annual equivalent yield to maturity at 11:00 a.m., New York City time, on the second Business Day preceding such redemption date of the United States Treasury security maturing on, or with a maturity that is closest to, the First Par Call Date, as applicable. If there is no United States Treasury security maturing on the First Par Call Date but there are two or more United States Treasury securities with a maturity date equally

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distant from the First Par Call Date, one with a maturity date preceding the First Par Call Date and one with a maturity date following the First Par Call Date, we shall select the United States Treasury security with a maturity date preceding the First Par Call Date. If there are two or more United States Treasury securities maturing on the First Par Call Date or two or more United States Treasury securities meeting the criteria of the preceding sentence, we shall select from among these two or more United States Treasury securities the United States Treasury security that is trading closest to par based upon the average of the bid and asked prices for such United States Treasury securities at 11:00 a.m., New York City time. In determining the Treasury Rate in accordance with the terms of this paragraph, the semi-annual yield to maturity of the applicable United States Treasury security shall be based upon the average of the bid and asked prices (expressed as a percentage of principal amount) at 11:00 a.m., New York City time, of such United States Treasury security, and rounded to three decimal places.

Our actions and determinations in determining the redemption price shall be conclusive and binding for all purposes, absent manifest error.

Notice of any redemption will be mailed or electronically delivered (or otherwise transmitted in accordance with the depositary’s procedures) at least 10 days but not more than 60 days before the redemption date to each holder of notes to be redeemed.

In the case of a partial redemption, selection of the notes for redemption will be made pro rata, by lot or by such other method as the Trustee in its sole discretion deems appropriate and fair. No notes of a principal amount of $2,000 or less will be redeemed in part. If any note is to be redeemed in part only, the notice of redemption that relates to the note will state the portion of the principal amount of the note to be redeemed. A new note in a principal amount equal to the unredeemed portion of the note will be issued in the name of the holder of the note upon surrender for cancellation of the original note. For so long as the notes are held by DTC (or another depositary), the redemption of the notes shall be done in accordance with the policies and procedures of the depositary.

Unless we default in payment of the redemption price, on and after the redemption date interest will cease to accrue on the notes or portions thereof called for redemption.

Neither the Trustee nor the Calculation Agent shall be responsible for or have any responsibility to determine or make any calculations in connection with any Redemption.

Merger, Consolidation or Sale of Assets

We may consolidate with, or sell, lease or otherwise transfer all or substantially all of our assets to, or merge with or into, any other corporation, trust or other entity, provided that:

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Upon any such consolidation, merger, or sale, the successor corporation formed, or into which we are merged or to which we are sold, shall succeed to, and be substituted for, us under the indenture.

This covenant would not apply to any recapitalization transaction, change of control of us or a transaction in which we incur a large amount of additional debt unless the transactions or change of control included a merger or consolidation or transfer of all or substantially all of our assets. There are no covenants or other provisions in the indenture providing for a put or increased interest or that would otherwise afford holders of the notes additional protection in the event of a recapitalization transaction, a change of control of us or a transaction in which we incur or acquire a large amount of additional debt.

Although there is a limited body of case law interpreting the phrase “substantially all,” there is no precise established definition of the phrase under applicable law. Accordingly, in certain circumstances there may be a degree of uncertainty as to whether a particular transaction would involve “all or substantially all” of the property or assets of a person.

Certain Covenants

Maintenance of Properties. We will cause all of our material properties used or useful in the conduct of our business or the business of any of our subsidiaries to be maintained and kept in good condition, repair, and working order and supplied with all necessary equipment and we will cause to be made all necessary repairs, renewals, replacements, betterments, and improvements for those properties, as we in our judgment believe is necessary so that we may carry on the business related to those properties properly and advantageously at all times; provided, however, that we will not be prevented from discontinuing the operation or maintenance of any of such properties if such discontinuance is, in our judgment, desirable in the conduct of our business or the business of any of our subsidiaries and not disadvantageous in any material respect to the holders of the notes.

Payment of Taxes and Other Claims. We will pay or discharge, or cause to be paid or discharged, before they become delinquent,

provided, however, that we will not be required to pay or discharge or cause to be paid or discharged any tax, assessment, charge or claim the amount, applicability or validity of which is being contested in good faith by appropriate proceedings and for which adequate provision is made.

Waiver of Certain Covenants. We may choose not to comply with any term, provision or condition of certain covenants contained in the indenture, or with certain other terms, provisions or conditions with respect to the notes (except any such term, provision or condition which could not be amended without the consent of all holders of the notes), if before the time for compliance with the covenant, term, provision or condition, the holders of at least a majority in principal amount of the notes either waive compliance in that instance or generally waive compliance with that covenant, provision or condition. Unless the holders of the notes expressly waive compliance with a covenant and the waiver has become effective, our obligations and the duties of the trustee in respect of the term, provision, or condition will remain in full force and effect.

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Sale or Issuance of Capital Stock in Principal Subsidiary Bank. We will not be permitted, pursuant to the covenants in the indenture, directly or indirectly, to do any of the following:

The term “principal subsidiary bank” means any subsidiary bank, the consolidated assets of which constitute 50% or more of our consolidated assets. As of the date of this prospectus supplement, our only principal subsidiary bank is the Bank. The indenture does not restrict the ability of the principal subsidiary bank to sell or dispose of assets. The foregoing covenant in the indenture, however, does not prohibit any of the following:

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Events of Default, Notice and Waiver

Each of the following “Events of Default” set forth in the indenture will be applicable to the notes:

If there is a continuing Event of Default under the indenture with respect to the notes, then the trustee or the holders of not less than 25% of the total principal amount of the notes may declare immediately due and payable the principal amount of such notes.

If an Event of Default occurs as a result of our bankruptcy, insolvency or reorganization, the principal amount of the notes shall become immediately due and payable automatically, and without any declaration or other action on the part of the trustee or any holder.

However, at any time after a declaration of acceleration with respect to the notes then outstanding has been made, but before a judgment or decree for payment of the money due has been obtained by the trustee, the holders of a majority in principal amount of the notes may rescind and annul such declaration and its consequences if:

The indenture also provides that the holders of not less than a majority in principal amount of the notes may waive any past default with respect to such notes and its consequences, except a default consisting of:

The trustee is generally required to give notice to the holders of the notes within 90 days of a default of which the trustee has actual knowledge under the indenture unless the default has been cured or waived.

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The indenture provides that no holder of the notes may institute a proceeding with respect to the indenture or for any remedy under the indenture, unless such holder has previously given notice to the trustee of an Event of Default and the trustee fails to act for 60 days after:

Subject to provisions in the indenture relating to the trustee’s duties in case of default, the trustee is not under an obligation to exercise any of its rights or powers under the indenture at the request or direction of any holders of the notes, unless the holders of the notes have offered to the trustee reasonable security or indemnity. Subject to these provisions for the indemnification of the trustee, the holders of not less than a majority in principal amount of the notes will have the right to direct the time, method, and place of conducting any proceeding for any remedy available to the trustee, or of exercising any trust or power conferred upon the trustee. However, the trustee may refuse to follow any direction which is in conflict with any law or the indenture or which may involve the trustee in personal liability.

Within 120 days after the close of each fiscal year, we must deliver to the trustee a certificate, signed by one of several specified officers, stating such officer’s knowledge of our compliance with all the conditions and covenants under the indenture and, in the event of any non-compliance, specifying such non-compliance and the nature and status of the non-compliance.

Modification of the Indenture

Modification and amendment of the indenture may be made only with the consent of the holders of not less than a majority in principal amount of the notes. However, no modification or amendment may, without the consent of each holder affected thereby, do any of the following:

We and the trustee may modify or amend the indenture, without the consent of any holder of the notes for any of the following purposes:

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Discharge, Defeasance and Covenant Defeasance

Under the indenture, we may discharge certain obligations to holders of the notes that have not already been delivered to the trustee for cancellation and that either have become due and payable or will become due and payable within one year. We can discharge these obligations by irrevocably depositing with the trustee funds in United States dollars in an amount sufficient to pay the entire indebtedness on the notes, including the principal of and interest payable on the notes to the date of the deposit, if the notes have become due and payable, or to the maturity date, if the notes have not yet become due and payable.

We may also elect either of the following:

If we choose to defease and discharge our obligations under the covenants with respect to the notes, any failure to comply with the obligations imposed on us by the covenants will not constitute a default or an Event of

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Default with respect to the notes. However, to make either election, we must irrevocably deposit with the trustee, in trust, an amount, in United States dollars, in United States government obligations or both, that will provide sufficient funds to pay the principal of and interest on the notes on the relevant scheduled due dates.

We may defease and discharge our obligations as described in the preceding paragraphs only if, among other things:

Same-Day Settlement and Payment

Initial settlement for the notes will be made in immediately available funds. Secondary market trading between DTC Participants will occur in the ordinary way in accordance with DTC rules and will be settled in immediately available funds using DTC’s Same-Day Funds Settlement System.

Trustee

Deutsche Bank Trust Company Americas will act as trustee for the notes. From time to time, we and some of our subsidiaries may maintain deposit accounts and conduct other banking transactions, including lending transactions, with the trustee and its affiliates in the ordinary course of business. Additionally, we maintain banking relationships with Deutsche Bank Trust Company Americas and its affiliates in the ordinary course of business. These banking relationships include Deutsche Bank Trust Company Americas serving as trustee under the indenture involving our existing debt securities, serving as trustee in connection with trust preferred securities that were issued by certain of our financing trusts, and providing us with general banking services. Upon the occurrence of an Event of Default or an event which, after notice or lapse of time or both, would become an Event of Default under the notes, or upon the occurrence of a default under another indenture under which Deutsche Bank Trust Company Americas serves as trustee, the trustee may be deemed to have a conflicting interest with respect to the other debt securities as to which we are not in default for purposes of the Trust Indenture Act and, accordingly, may be required to resign as trustee under the indenture. In that event, we would be required to appoint a successor trustee.

The trustee will have all of the duties and responsibilities specified under the Trust Indenture Act.

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The trustee, in any of its capacities under the indenture, has not participated in the preparation of this prospectus supplement and does not assume responsibility for its contents, including, for avoidance of doubt, any reports, financial statement, or any other collateral information related to or referred to herein. No representation, warranty or undertaking, express or implied, is made and no responsibility or liability is accepted by the trustee as to the accuracy or completeness of the information contained or incorporated in this prospectus supplement or any other information provided by Huntington in connection with the offering of the notes. The trustee does not have any liability in relation to the information contained or incorporated by reference in this prospectus supplement or any other information provided by Huntington in connection with the offering of the notes or their distribution.

Miscellaneous

We, or our affiliates, may from time to time purchase any of the notes that are then outstanding, by tender in the open market or by private agreement.

Notices

Any notices required to be given to the holders of the notes will be given to DTC.

Governing Law

The indenture and the notes are governed by and will be construed in accordance with the laws of the State of New York.

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BOOK-ENTRY, DELIVERY AND FORM

The Depository Trust Company, which we refer to along with its successors in this capacity as “DTC,” will act as securities depository for the notes. The notes will be issued only as fully registered securities registered in the name of Cede & Co. (DTC’s partnership nominee) or such other name as may be requested by an authorized representative of DTC. One or more fully registered global security certificates, representing the total aggregate number of notes, will be issued for the notes and will be deposited with the trustee as custodian for DTC.

Investors may elect to hold beneficial interests in the global security certificates representing the notes through either DTC, in the United States, Clearstream Banking, société anonyme (“Clearstream”), and Euroclear Bank S.A./N.V., as operator of the Euroclear System (“Euroclear”), if they are participants in these systems, or indirectly through organizations which are participants in these systems.

DTC has advised us that it is a limited-purpose trust company organized under the New York Banking Law, a “banking organization” within the meaning of the New York Banking Law, a member of the Federal Reserve System, a “clearing corporation” within the meaning of the New York Uniform Commercial Code and a “clearing agency” registered pursuant to the provisions of Section 17A of the Exchange Act. DTC holds securities that DTC’s participants (“Direct Participants”) deposit with DTC. DTC also facilitates the post-trade settlement among Direct Participants of sales and other securities transactions in deposited securities, through electronic computerized book-entry transfers and pledges between Direct Participants’ accounts. This eliminates the need for physical movement of securities certificates. Direct Participants include both U.S. and non-U.S. securities brokers and dealers, banks, trust companies, clearing corporations, and certain other organizations. DTC is a wholly owned subsidiary of The Depository Trust & Clearing Corporation (“DTCC”). DTCC, in turn, is owned by a number of Direct Participants of DTC and members of the National Securities Clearing Corporation, Fixed Income Clearing Corporation, and Emerging Markets Clearing Corporation (also subsidiaries of DTCC), as well as by the New York Stock Exchange, Inc., the American Stock Exchange LLC, and the Financial Industry Regulatory Authority (“FINRA”). Access to the depository system is also available to others, such as both U.S. and non-U.S. securities brokers and dealers, banks, trust companies, and clearing corporations that clear through or maintain a custodial relationship with a Direct Participant, either directly or indirectly (“Indirect Participants”). The DTC rules applicable to DTC’s participants are on file with the SEC. More information about DTC can be found at www.dtcc.com or www.dtc.org.

Purchase of notes under the DTC system must be made by or through Direct Participants, which will receive a credit for the notes on DTC’s records. The ownership interest of each actual purchaser (which we refer to as “beneficial owners”) of the notes will be recorded on the Direct or Indirect Participants’ records. Beneficial owners will not receive written confirmation from DTC of their purchase. Beneficial owners are, however, expected to receive written confirmations providing details of the transaction, as well as periodic statements of their holdings, from the Direct or Indirect Participant through which the beneficial owner entered into the transaction. Transfers of ownership interests in the notes are to be accomplished by entries made on the books of Direct and Indirect Participants acting on behalf of beneficial owners. Beneficial owners will not receive certificates representing their ownership interests in the notes except in the event that use of the book-entry system for the notes is discontinued.

To facilitate subsequent transfers, all global security certificates deposited by Direct Participants with DTC are registered in the name of DTC’s partnership nominee, Cede & Co., or such other name as may be requested by an authorized representative of DTC. The deposit of the notes with the trustee as custodian for DTC and their registration in the name of Cede & Co. or such other DTC nominee do not effect any change in beneficial ownership. DTC has no knowledge of the actual beneficial owners of the notes; DTC’s records reflect only the identity of the Direct Participants to whose accounts the notes are credited, which may or may not be the beneficial owners. The Direct and Indirect Participants will remain responsible for keeping account of their holdings on behalf of their customers.

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Conveyance of notices and other communications by DTC to Direct Participants, by Direct Participants to Indirect Participants, and by Direct and Indirect Participants to beneficial owners will be governed by arrangements among them, subject to any statutory or regulatory requirements as may be in effect from time to time.

Redemption notices shall be sent to DTC. If less than all of the securities within an issue are being redeemed, DTC’s practice is to determine by lot the amount of the interest of each Direct Participant in such issue to be redeemed.

Neither DTC nor Cede & Co. (nor any other DTC nominee) will consent or vote with respect to any notes unless authorized by a Direct Participant in accordance with DTC’s procedures. Under its usual procedures, DTC mails an omnibus proxy to the issuer as soon as possible after the record date. The omnibus proxy assigns Cede & Co.’s consenting or voting rights to those Direct Participants to whose accounts the notes are credited on the record date (identified in a listing attached to the omnibus proxy).

If DTC notifies us that it is unwilling or unable to continue as depository for the global securities relating to the notes or if at any time DTC ceases to be a clearing agency registered under the Exchange Act, if so required by applicable law or regulation, we will appoint a successor depository. If we do not appoint such successor depository within 90 days after we receive such notice or become aware of such unwillingness, inability or ineligibility, or an Event of Default under the indenture with respect to the notes has occurred and is continuing and the beneficial owners representing a majority in principal amount of the notes advise DTC to cease acting as depository for the notes, we will issue notes in certificated form (the “Certificated Notes”) in exchange for that global security. In addition, we may at any time and in our sole discretion decide not to have the notes represented by global securities. In such event, we will issue Certificated Notes in exchange for all of the notes represented by global securities. The Certificated Notes issued in exchange for those global securities will be in the same minimum denominations and be of the same aggregate principal amount and tenor as the portion of each global security to be exchanged. Except as provided above, owners of beneficial interests in a global security will not be entitled to receive physical delivery of Certificated Notes and will not be considered the registered holders of the notes for any purpose, including receiving payments of principal or interest.

As long as DTC or its nominee is the registered owner of the global security certificates, DTC or its nominee, as the case may be, will be considered the sole owner and holder of the global security certificates and all notes represented by these certificates for all purposes under the instruments governing the rights and obligations of holders of such notes. Except in the limited circumstances referred to above, owners of beneficial interests in global security certificates:

All redemption proceeds, distributions and interest payments on the notes and all transfers and deliveries of such notes will be made to Cede & Co., or such other nominee, as may be requested by an authorized representative of DTC. DTC’s practice is to credit Direct Participants’ accounts upon DTC’s receipt of funds and corresponding detail information from the issuer or its agent, on the payment date in accordance with their respective holdings shown on DTC’s records. Payments by participants to beneficial owners will be governed by standing instructions and customary practices, as is the case with securities held for the accounts of customers in bearer form or registered in “street name,” and will be the responsibility of that participant and not of DTC, the

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trustee, the issuer or any affiliate thereof, or any of their agents, subject to any statutory or regulatory requirements as may be in effect from time to time. Payment of principal and interest to Cede & Co. (or such other nominee as may be requested by an authorized representative of DTC) is the responsibility of the issuer or its agent, disbursement of such payments to Direct Participants will be the responsibility of DTC, and disbursement of such payments to the beneficial owners will be the responsibility of Direct and Indirect Participants.

Ownership of beneficial interests in the global security certificates will be limited to participants or persons that may hold beneficial interests through institutions that have accounts with DTC or its nominee. Ownership of beneficial interests in global security certificates will be shown only on, and the transfer of those ownership interests will be effected only through, records maintained by DTC or its nominee, with respect to participants’ interests, or any participant, with respect to interests of persons held by the participant on their behalf. Payments, transfers, deliveries, exchanges, redemptions and other matters relating to beneficial interests in global security certificates may be subject to various policies and procedures adopted by DTC from time to time. Neither Huntington nor the trustee will have any responsibility or liability for any aspect of DTC’s or any Direct or Indirect Participant’s records relating to, or for payments made on account of, beneficial interests in global security certificates, or for maintaining, supervising or reviewing any of DTC’s records or any Direct or Indirect Participant’s records relating to these beneficial ownership interests.

Neither Huntington, nor any of the underwriters or the trustee, will have any responsibility for the performance by DTC or its Direct Participants or Indirect Participants of their respective obligations under the rules and procedures governing DTC.

The information in this section concerning DTC and its book-entry system has been obtained from sources that Huntington believes to be accurate, but we assume no responsibility for the accuracy thereof.

Clearstream and Euroclear. Clearstream and Euroclear will hold interests on behalf of their participants through customers’ securities accounts in Clearstream’s and Euroclear’s names on the books of their respective depositaries, which in turn will hold interests in customers’ securities accounts in the depositaries’ names on the books of DTC. Beneficial interests in the global securities representing the notes will be held in denominations of $2,000 and integral multiples of $1,000 in excess thereof.

Clearstream holds securities for its participating organizations (“Clearstream Participants”) and facilitates the clearance and settlement of securities transactions between Clearstream Participants through electronic book-entry changes in accounts of Clearstream Participants, thereby eliminating the need for physical movement of certificates. Clearstream provides to Clearstream Participants, among other things, services for safekeeping, administration, clearance and settlement of internationally traded securities and securities lending and borrowing. Clearstream interfaces with domestic markets in several countries.

Clearstream is registered as a bank in Luxembourg, and as such is subject to regulation by the Commission de Surveillance du Secteur Financier and the Banque Centrale du Luxembourg, which supervise and oversee the activities of Luxembourg banks. Clearstream Participants are world-wide financial institutions including underwriters, securities brokers and dealers, banks, trust companies and clearing corporations, and may include the underwriters or their affiliates. Indirect access to Clearstream is available to other institutions that clear through or maintain a custodial relationship with a Clearstream Participant. Clearstream has established an electronic bridge with Euroclear as the operator of the Euroclear System (the “Euroclear Operator”) in Brussels to facilitate settlement of trades between Clearstream and the Euroclear Operator.

Distributions with respect to the notes held beneficially through Clearstream will be credited to cash accounts of Clearstream Participants in accordance with its rules and procedures, to the extent received by the U.S. depositary for Clearstream.

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Euroclear holds securities and book-entry interests in securities for participating organizations (“Euroclear Participants”) and facilitates the clearance and settlement of securities transactions between Euroclear Participants, and between Euroclear Participants and participants of certain other securities intermediaries through electronic book-entry changes in accounts of such participants or other securities intermediaries. Euroclear provides Euroclear Participants, among other things, with safekeeping, administration, clearance and settlement, securities lending and borrowing, and related services. Euroclear Participants are investment banks, securities brokers and dealers, banks, central banks, supranationals, custodians, investment managers, corporations, trust companies and certain other organizations, and may include the underwriters or their affiliates. Non-participants in Euroclear may hold and transfer beneficial interests in a global security through accounts with a Euroclear Participant or any other securities intermediary that holds a book-entry interest in a global security through one or more securities intermediaries standing between such other securities intermediary and Euroclear.

Securities clearance accounts and cash accounts with the Euroclear Operator are governed by the Terms and Conditions Governing Use of Euroclear and the related Operating Procedures of the Euroclear System, and applicable Belgian law (collectively, the “Terms and Conditions”). The Terms and Conditions govern transfers of securities and cash within Euroclear, withdrawals of securities and cash from Euroclear and receipts of payments with respect to securities in Euroclear. All securities in Euroclear are held on a fungible basis without attribution of specific certificates to specific securities clearance accounts. The Euroclear Operator acts under the Terms and Conditions only on behalf of Euroclear Participants, and has no record of or relationship with persons holding through Euroclear Participants.

Distributions with respect to notes held beneficially through Euroclear will be credited to the cash accounts of Euroclear Participants in accordance with the Terms and Conditions, to the extent received by the U.S. depositary for Euroclear.

Transfers between Euroclear Participants and Clearstream Participants will be effected in the ordinary way in accordance with their respective rules and operating procedures.

Cross-market transfers between DTC’s participating organizations (“DTC Participants”), on the one hand, and Euroclear Participants or Clearstream Participants, on the other hand, will be effected through DTC in accordance with DTC’s rules on behalf of Euroclear or Clearstream, as the case may be, by its U.S. depositary; however, such cross-market transactions will require delivery of instructions to Euroclear or Clearstream, as the case may be, by the counterparty in such system in accordance with the rules and procedures and within the established deadlines (European time) of such system. Euroclear or Clearstream, as the case may be, will, if the transaction meets its settlement requirements, deliver instructions to its U.S. depositary to take action to effect final settlement on its behalf by delivering or receiving interests in the global security in DTC, and making or receiving payment in accordance with normal procedures for same-day fund settlement applicable to DTC. Euroclear Participants and Clearstream Participants may not deliver instructions directly to their respective U.S. depositaries.

Due to time zone differences, the securities accounts of a Euroclear Participant or Clearstream Participant purchasing an interest in a global security from a DTC Participant in DTC will be credited, and any such crediting will be reported to the relevant Euroclear Participant or Clearstream Participant, during the securities settlement processing day (which must be a business day for Euroclear or Clearstream) immediately following the settlement date of DTC. Cash received in Euroclear or Clearstream as a result of sales of interests in a global security related to the notes by or through a Euroclear Participant or Clearstream Participant to a DTC Participant will be received with value on the settlement date of DTC but will be available in the relevant Euroclear or Clearstream cash account only as of the business day for Euroclear or Clearstream following the DTC’s settlement date.

The information in this section concerning Euroclear and Clearstream and their book-entry systems has been obtained from sources that we believe to be reliable, but we take no responsibility for the accuracy of that information.

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None of us, any of the underwriters or the trustee will have any responsibility for the performance by Euroclear or Clearstream or their respective participants of their respective obligations under the rules and procedures governing their operations.

Although DTC, Clearstream and Euroclear have agreed to the foregoing procedures in order to facilitate transfers of securities among participants of DTC, Clearstream and Euroclear, they are under no obligation to perform or continue to perform such procedures and they may discontinue the procedures at any time.

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