GENC Gencor Industries Inc

CUSIP No. 368678108

1.

Names of Reporting Persons. I.R.S. Identification Nos. of above persons (entities only)

Sherry Houtkin

2.

Check the Appropriate Box if a Member of a Group (See Instructions)

(a)

[   ]

(b)

[   ]

3.

SEC Use Only

4.

Source of Funds (See Instructions)

PF

5.

Check if Disclosure of Legal Proceedings Is Required Pursuant to Items 2(d) or 2(e) [   ]

6.

Citizenship or Place of Organization

United States

Number of

Shares

Beneficially

Owned by

Each

Reporting

Person With

7.

Sole Voting Power

1,250,307

8.

Shared Voting Power

13,554

9.

Sole Dispositive Power

1,250,307

10.

Shared Dispositive Power

13,554

11.

Aggregate Amount Beneficially Owned by Each Reporting Person

1,263,861

12.

Check if the Aggregate Amount in Row (11) Excludes Certain Shares (See Instructions)

13.

Percent of Class Represented by Amount in Row (11)

10.4% **

14.

Type of Reporting Person (See Instructions)

IN

Item 1.

Security and Issuer

Common Stock

Gencor Industries, Inc., 5201 North Orange Blossom Trail, Orlando, FL 32810

Item 2.

Identity and Background

(a)

Names of Persons Filing: Sherry Houtkin

(b)

Address:

Sherry Houtkin: 2295 NW Corporate Blvd., Suite 230, Boca Raton, FL 33431

(c)

Present principal occupation or employment and the name, principal business and address of any corporation or other organization in which such employment is conducted:

Sherry Houtkin: Homemaker, 2295 NW Corporate Blvd., Suite 230, Boca Raton, FL 33431

(d)

Whether or not, during the last five years, such person has been convicted in a criminal proceeding:

Not applicable.

(e)

Whether or not, during the last five years, such person was a party to a civil proceeding of a judicial or administrative body of competent jurisdiction and as a result of such proceeding was or is subject to a judgment, decree or final order enjoining future violations of, or prohibiting or mandating activities subject to, federal or state securities laws or finding any violation with respect to such laws; and, if so, identify and describe such proceeding and summarize the terms of such judgment, decree or final order:

Not applicable.

(f)

Citizenship:

United States

Item 3.

Source and Amount of Funds or Other Consideration

Sherry Houtkin acquired beneficial ownership of 1,873,992 post-split shares of the issuer as a result of Mr. Houtkin’s death in July, 2008. Mrs. Houtkin used personal funds to make the other acquisitions she has made since she and Harvey Houtkin filed a Joint Schedule 13D August10, 2005. Personal funds were used by Harvey Houtkin for purchases he made prior to his death, both for his own account and for the account of his son, Stuart Houtkin.

Item 4.

Purpose of Transaction

As noted above in Item 3, Sherry Houtkin acquired beneficial ownership of 1,873,992 post-split shares of the issuer as a result of Mr. Houtkin’s death in July, 2008. The other acquisitions Mrs. Houtkin has made since she and Harvey Houtkin filed a Joint Schedule 13D (August10, 2005) were made for investment purposes. Purchases made by Harvey Houtkin and for the account of his son, Stuart Houtkin, prior to his death (and since August 10, 2005) were made for investment purposes.

Describe any plans or proposals which the reporting persons may have which relate to or would result in:

(a)

The acquisition by any person of additional securities of the issuer, or the disposition of securities of the issuer:

Mrs. Houtkin may purchase additional shares of Common Stock of the Issuer and, alternatively, may sell all or a portion of the shares held by her in the open market or in privately negotiated transactions to one or more financial or strategic purchasers, but has no present plans to do so.

(b)

An extraordinary corporate transaction, such as a merger, reorganization or liquidation, involving the issuer or any of its subsidiaries:

None

(c)

A sale or transfer of a material amount of assets of the issuer or any of its subsidiaries:

None

(d)

Any change in the present board of directors or management of the issuer, including any plans or proposals to change the number or term of directors or to fill any existing vacancies on the board:

None

(e)

Any material change in the present capitalization or dividend policy of the issuer:

None

(f)

Any other material change in the issuer’s business or corporate structure, including but not limited to, if the issuer is a registered closed-end investment company, any plans or proposals to make any changes in its investment policy for which a vote is required by section 13 of the Investment Company Act of 1940:

None

(g)

Changes in the issuer’s charter, bylaws or instruments corresponding thereto or other actions which may impede the acquisition of control of the issuer by any person:

None

(h)

Causing a class of securities of the issuer to be delisted from a national securities exchange or to cease to be authorized to be quoted in an inter-dealer quotation system of a registered national securities association:

None

(i)

A class of equity securities of the issuer becoming eligible for termination of registration pursuant to Section 12(g)(4) of the Act:

None

(j)

Any action similar to any of those enumerated above:

None

Item 5.

Interest in Securities of the Issuer

(a)

Amount of Common Stock beneficially owned by Sherry Houtkin at the close of business on November 20, 2017: 1,250,307 shares.

Percent of Class: 10.4% (Based upon 12,137,829 shares of Common Stock outstanding in Gencor’s Form 10-Q for the quarter ended June 30, 2017).

For each person named in response to paragraph (a), indicate the number of shares as to which there is sole power to vote or to direct the vote, shared power to vote or to direct the vote, sole power to dispose or to direct the disposition, or shared power to dispose or to direct the disposition. Provide the applicable information required by item 2 with respect to each person with whom the power to vote or to direct the vote or to dispose or direct the disposition is shared:

Sherry Houtkin:

(b)

Sole power to vote or direct the voting

1,250,307

Shared power to vote or direct the voting

13,554

Shared with Brad Houtkin (Mrs. Houtkin’s son), in his capacity as Co-Trustee of Airmont Trust

Sole power to dispose or to direct the disposition of

1,250,307

Shared power to dispose or to direct the disposition of

13,554

Shared with Brad Houtkin (Mrs. Houtkin’s son), as Co-Trustees of the Airmont Trust

Mr. Houtkin is President of Arbor EnTech Corp, a corporation seeking potential acquisitions, having an address of 2295 NW Corporate Blvd., Suite 230, Boca Raton, FL 33431. Mr. Houtkin is also COO of Houtkin Consulting, Inc., a real estate investment firm, also with an address of 2295 NW Corporate Blvd., Suite 230, Boca Raton, FL 33431.

(c)

Describe any transactions in the class of securities reported on that were effected during the past sixty days or since the most recent filing on Schedule 13D (§ 240.13d-191), whichever is less, by the persons named in response to paragraph

Approximately 243,700 shares were sold recently at an average price of $18.08 per share..

(d)

If any other person is known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, such securities, a statement to that effect should be included in response to this item and, if such interest related to more than five percent of the class, such person should be identified. A listing of the shareholders of an investment company registered under the Investment Company Act of 1940 or the beneficiaries of an employee benefit plan, pension fund or endowment fund is not required.

(e)

Not applicable.

Item 6.

Contracts, Arrangements, Understandings or Relationships with Respect to Securities of the Issuer

Describe any contracts, arrangements, understanding or relationships (legal or otherwise) among the persons named in item 2 and between such persons and any person with respect to any securities of the issuer, including, but not limited to transfer or voting of any of the securities, finder’s fees, joint ventures, loan or option arrangements, puts or calls, guarantees of profits, division of profits or loss, or the giving or withholding of proxies, naming the persons with whom such contracts, arrangements, understandings or relationships have been entered into. Include such information for any of the securities that are pledged or otherwise subject to a contingency the occurrence of which would give another person voting power or investment power over such securities except that disclosure of standard default and similar provisions contained in loan agreements need not be included..

Sherry Houtkin and Brad Houtkin are Co-Trustees of the Airmont Trust, which is the record owner of 13,554 shares of the issuer’s common stock.

Item 7.

Material to Be Filed as Exhibits

99.1

Joint Filing Agreement dated February 4, 2009 (previously filed.)

/s/ Sherry Houtkin

Sherry Houtkin

November 20, 2017