United States Securities and Exchange Commission Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15 (d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2019 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15 (d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File No.: 000-51821 Lake Shore Bancorp, Inc. (Exact Name of Registrant as Specified in Its Charter) United States (State or Other Jurisdiction 20-4729288 of Incorporation or Organizati ...

United States Securities and Exchange Commission Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15 (d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2019 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15 (d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File No.: 000-51821 (Registrant's telephone number, including area code) Securities registered pursuant to Section 12(b) of the Exchange Act: | | Trading | | | --- | --- | --- ...

United States Securities and Exchange Commission Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15 (d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2019 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15 (d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File No.: 000-51821 Securities registered pursuant to Section 12b-2 of the Exchange Act: | | Trading | | | --- | --- | --- | | Title of each class | Symbol(s) | Name of each exchan ...

United States Securities and Exchange Commission Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15 (d) OF THE SECURITIES EXCHANGE ACT OF 1934 Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months, and (2) has been subject to such filing requirements for the past 90 days. Commission File No.: 000-51821 Yes [X] No [ ] Indicate by check ma ...

United States Securities and Exchange Commission Washington, D.C. 20549 FORM 10-K (Mark One) of Incorporation or Organization) (I.R.S. Employer Identification No.) 31 East Fourth Street, Dunkirk, NY 14048 (Address of Principal Executive Of ices, including zip code) (716) 366-4070 (Registrant's telephone number, including area code) Securities registered pursuant to Section 12(b) of the Act: Common Stock, $0.01 par value per share Name of each exchange on which registered: The NASDAQ Stock Market, LLC ☒ ANNU ...