0000950170-24-048353 4 1 20240423 20240425 20240425 Werdein Jeffrey M. 0001616460 4 34 000-51821 24876665 31 EAST FOURTH STREET DUNKIRK NY 14048 LAKE SHORE BANCORP, INC. 0001341318 6035 02 Finance 204729288 X1 1231 31 EAST FOURTH STREET DUNKIRK NY 14048 716-366-4070 31 EAST FOURTH STREET DUNKIRK NY 14048 Lake Shore Bancorp, Inc. 20051012 4 1 ownership.xml 4 FORM 4 OMB APPROVAL ? Check this box OMB Number: if no longer 3235-0287 subject to Estimated Section 16. Form average burden 4 or Form 5 hours per obligations may response... 0.5 continue. See Instruction 1(b). ? Check this box UNITED STATES SECURITIES AND EXCHANGE COMMISSION to indicate that Washington, D.C. 20549 a transaction STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF was made SECURITIES pursuant to a contract, instruction or written plan that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10. Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940 1. Name and Address of Reporting 2. Issuer Name and Ticker 5. Relationship of Person * or Trading Symbol Reporting Person(s) to Werdein Jeffrey M. LAKE SHORE BANCORP, INC. [ Issuer (Check all LSBK ] applicable) _____ Director _____ 10% Owner __X__ Officer (give title (Last) (First) (Middle) 3. Date of Earliest below) _____ Other C/O 31 EAST FOURTH STREET Transaction (MM/DD/YYYY) (specify below) 4/23/2024 EVP - Commercial Division (Street) 4. If Amendment, Date 6. Individual or DUNKIRK, NY 14048 Original Filed Joint/Group Filing (Check (MM/DD/YYYY) Applicable Line) _X _ Form filed by One Reporting Person ___ Form filed by More (City) (State) (Zip) than One Reporting Person Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security 2. Trans. Date 2A. 3. Trans. 4. Securities Acquired (A) 5. Amount of 6. Ownership 7. Nature of (Instr. 3) Deemed Code or Disposed of (D) Securities Form: Direct Indirect Execution (Instr. 8) (Instr. 3, 4 and 5) Beneficially (D) or Indirect Beneficial Date, if Owned Following (I) (Instr. 4) Ownership any Reported (Instr. 4) Transaction(s) (A) (Instr. 3 and or 4) Code V Amount (D) Price Common Stock 4/23/2024 A 2,534 (1) A $0 18,936 D Common Stock 4,530 (2) I By ESOP Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities) 1. Title of 2. 3. 3A. 4. Trans. 5. Number of 6. Date Exercisable and 7. Title and Amount of 8. Price 9. Number of 10. 11. Nature Derivate Conversion Trans. Deemed Code Derivative Expiration Date Securities Underlying of derivative Ownership of Security or Date Execution (Instr. 8) Securities Derivative Security Derivative Securities Form of Indirect (Instr. 3) Exercise Date, if Acquired (A) or (Instr. 3 and 4) Security Beneficially Derivative Beneficial Price of any Disposed of (D) (Instr. 5) Owned Security: Ownership Derivative (Instr. 3, 4 and Following Direct (D) (Instr. 4) Security 5) Reported or Transaction(s) Indirect Date Expiration Amount or (Instr. 4) (I) Exercisable Date Title Number of (Instr. 4) Code V (A) (D) Shares Stock Option $14.38 (3) 10/21/2026 Common 17,073 17,073 D (Right to Buy) Stock Explanation of Responses: (1) Shares of restricted stock vest at a rate of 25% per year commencing on April 23, 2025 (2) These shares were acquired pursuant to an Employee Stock Ownership Plan Allocation (3) Options are fully vested Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Werdein Jeffrey M. C/O 31 EAST FOURTH STREET EVP - Commercial Division DUNKIRK, NY 14048 Signatures /s/ Taylor M. Gilden, Pursuant to Power of Attorney 4/25/2024 ** Signature of Reporting Person Date 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). Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure. Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.