Sec Form 4 Filing - Spencer Sandra J. @ AUBURN NATIONAL BANCORPORATION, INC - 2024-03-29

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person Spencer Sandra J. 2. Issuer Name and Ticker or Trading Symbol AUBURN NATIONAL BANCORPORATION, INC [ AUBN] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director X __ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) PO BOX 3110 3. Date of Earliest Transaction (MM/DD/YY) 03/29/2024 (Street) AUBURN, AL36830 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price common stock, par value $0.1 666,825 I Held as sole Person Representative Edward L. Spencer, Jr (the "Estate") see Note 1 common stock, par value $0.1 47,882 I Held as sole Trustee of the Spencer 2008 Irrevocable Trust. ("Spencer Truct") See Note1 common stock, par value $0.1 17,000 I Held pursuant to a Power of Attorney from Ruth Spencer ("Power of Attorney") See Note 1 common stock, par value $0.1 75.33 I Shares held by the Reporting Person's Spouse common stock, par value $0.1 10,271.89 D common stock, par value $0.1 3,960 I Includes all shares held by Spencer LLC. See Note 1

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Spencer Sandra J. PO BOX 3110 AUBURN, AL36830 X X Signatures /s/ Sandra J. Spencer 03/29/2024 Signature of Reporting Person Date

Explanation of Responses:

Remarks: The reporting person was elected a director of the Issuer on March 29, 2024.Note 1. This filing shall not be deemed an admission that the reporting person is, for purposes of section 16 of the Act or otherwise, the beneficial owner of all Shares covered by the statement, including the Shares held as Personal Representative of the Estate or as Trustee of the Spencer Trust, the Shares held pursuant to the Power of Attorney and the 2,640 shares held in Spencer LLC beneficially owned by the 2 other members of Spencer LLC.of which the Reporting Person is one-third member where she indirectly owns 1,320 Shares.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

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