4processed

Form 4 — Insider Transaction

FINANCIAL INSTITUTIONS INC(FIISP)

Filing Date

May 20, 2026

Accepted

May 20, 2026

Accession No.

0001221249-26-000002

CIK

0000862831

Insider Transactions

InsiderTitleTypeSharesPriceValueOwned AfterSecurityDate
DORN ANDREW W JROther1.3K$039.1KCommon StockMay 20, 2026