X0609 4 2026-03-18 0002059653 Lake Shore Bancorp, Inc. /MD/ LSBK 0001282955 LIDDELL KIM C 31 EAST FOURTH STREET DUNKIRK NY 14048 false false false true Dir., Pres. and CEO of Bank false Common Stock 2026-03-18 4 A false 6285 0.00 A 70998 D Common Stock 10000 I By Spouse Common Stock 41661 I By IRA Common Stock 677 I By ESOP Shares of restricted stock vest in four equal installments beginning on March 18, 2027. Includes 6,363 remaining shares of unvested restricted stock that were granted on March 12, 2025 and were scheduled to vest in four equal annual installments beginning on the first anniversary of the grant. Includes 5,247 remaining shares of unvested restricted stock that were granted on April 23, 2024 and were scheduled to vest in four equal annual installments beginning on the first anniversary of the grant. Includes 6,285 shares of unvested restricted stock that were granted on March 18, 2026 and vest in four equal annual installments beginning on the first anniversary of the grant. These shares were acquired pursuant to an Employee Stock Ownership Plan Allocation. /s/ Taylor M. Gilden, pursuant to power of attorney 2026-03-20