Form 4 Filing for Pathfinder Bancorp, Inc.

This filing details transactions and holdings of Ronald G. Tascarella, Senior Vice President at Pathfinder Bancorp, Inc. (PBHC). The report includes information on both derivative and non-derivative holdings. Tascarella holds stock options, with specific details on exercise dates, expiration dates, and underlying security for two option grants. Non-derivative holdings include shares of Common Stock held directly and indirectly through the ESOP and a 401(k) plan. Specifically, he directly owns 16,771 shares of Common Stock. Indirectly, he holds 4,392 shares through the ESOP, with a footnote indicating these shares were allocated in April 2026, and 15,352 shares through a 401(k) plan. The signature date for this filing is April 10, 2026, reporting on transactions from April 8, 2026.