X0609 4/A 2026-02-27 2026-03-03 0001056943 PEOPLES FINANCIAL SERVICES CORP. PFIS 0002030454 VIENEY AMY false C/O PEOPLES SECURITY BANK & TRUST CO. 30 E D PREATE DRIVE MOOSIC PA 18507 1 EVP/CHIEF HUMAN RESOURCES OFF 0 Common Stock 2026-02-27 4 A 0 471 0 A 732.058 D Common Stock 2026-02-27 4 F 0 152 53.60 D 580.058 D Restricted Stock Units Common Stock 277 277 D On March 3, 2026, the reporting person filed a Form 4 which inadvertently reported the vesting of 706 performance-based stock awards and 238 shares withheld for taxes. As reported in this amendment, 471 performance-based stock awards vested and 152 shares were withheld for taxes. This amount includes 155 shares of time based restricted common stock solely owned by Ms. Vieney and 425.0580 shares solely owned by Ms. Vieney. Each restricted stock unit represents a contingent right to receive one share of PFIS common stock. The restricted stock units vest in three equal annual installments beginning March 11, 2026. /s/ James M. Bone, Jr., As Attorney in Fact for Amy Vieney 2026-04-10