UNITED STATESSECURITIES AND EXCHANGE COMMISSIONWASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Lake Shore Bancorp, Inc.

(Exact name of Registrant as Specified in Its Charter)

(Former Name or Former Address, if Changed Since Last Report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§ 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§ 240.12b-2 of this chapter).

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 13(a) of the Exchange Act. ☐

Item 8.01 Other Events.

On July 23, 2025, the Board of Directors of Lake Shore Bancorp, Inc. (the "Company") declared a cash dividend of $0.09 per share on its outstanding common stock. The dividend is expected to be paid on August 13, 2025 to stockholders of record as of August 4, 2025.

A copy of the press release is attached as Exhibit 99.1 hereto.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits

99.1 Press release of Lake Shore Bancorp, Inc. dated July 24, 2025

104 Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

EX-99.1

Lake Shore Bancorp, Inc. Declares Dividend

DUNKIRK, N.Y. — July 24, 2025 — Lake Shore Bancorp, Inc. (“Lake Shore Bancorp”) (NASDAQ: LSBK), the holding company for Lake Shore Bank (the “Bank”), announced today that the Board of Directors declared a cash dividend of $0.09 per share on its outstanding common stock on July 23, 2025. The dividend is expected to be paid on August 13, 2025 to stockholders of record as of August 4, 2025.

About Lake Shore

Lake Shore Bancorp is the holding company of Lake Shore Bank, a New York chartered, community-oriented financial institution headquartered in Dunkirk, New York. The Bank has ten full-service branch locations in Western New York, including four in Chautauqua County and six in Erie County. The Bank offers a broad range of retail and commercial lending and deposit services. Lake Shore Bancorp’s common stock is traded on the NASDAQ Global Market as “LSBK”. Additional information about Lake Shore Bancorp is available at www.mylsbank.com.

Safe-Harbor

This release contains certain forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995, that are based on current expectations, estimates and projections about Lake Shore Federal Bancorp’s, Lake Shore Bancorp, Inc.’s (collectively, the “Company”) and the Bank’s industry, and management’s beliefs and assumptions. Words such as anticipates, expects, intends, plans, believes, estimates and variations of such words and expressions are intended to identify forward-looking statements. Such statements reflect management’s current views of future events and operations. These forward-looking statements are based on information currently available to the Company as of the date of this release. It is important to note that these forward-looking statements are not guarantees of future performance and involve and are subject to significant risks, contingencies, and uncertainties, many of which are difficult to predict and are generally beyond our control including, but not limited to, data loss or other security breaches, including a breach of our operational or security systems, policies or procedures, including cyber-attacks on us or on our third party vendors or service providers, economic conditions, the effect of changes in monetary and fiscal policy, inflation, tariffs, unanticipated changes in our liquidity position, climate change, geopolitical conflicts, public health issues, increased unemployment, deterioration in the credit quality of the loan portfolio and/or the value of the collateral securing repayment of loans, reduction in the value of investment securities, the cost and ability to attract and retain key employees, regulatory or legal developments, tax policy changes, dividend policy changes and our ability to implement and execute our business plan and strategy and expand our operations. These factors should be considered in evaluating forward looking statements and undue reliance should not be placed on such statements, as our financial performance could differ materially due to various risks or uncertainties. We do not undertake to publicly update or revise our forward-looking statements if future changes make it clear that any projected results expressed or implied therein will not be realized.

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Source: Lake Shore Bancorp, Inc.

Category: Financial

Investor Relations/Media Contact

Kim C. Liddell

President, CEO, and Director

Lake Shore Bancorp, Inc.

31 East Fourth Street

Dunkirk, New York 14048

(716) 366-4070 ext. 1012