InsiderTrades

Form 4 for FISI FINANCIAL INSTITUTIONS INC

Accepted 2026-03-23 00:00:00 ET · period of report 2026-03-20 · accession 0001193125-26-119708 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X Filed Traded Ticker Insider Title Type Price Qty Owned ΔOwn Value
D 2026-03-23 2026-03-20 FISI BYERS SANDRA L Principal Accounting Off M - OptEx — +690 2,150 +47% —
D 2026-03-23 2026-03-20 FISI BYERS SANDRA L Principal Accounting Off M - OptEx $0.00 -690 0 -100% $0

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Stock 2026-03-20 M A 690 — 2,150 D — — (F1) Each restricted stock unit represents a contingent right to receive one share of FISI common stock.
2 Derivative Restricted Stock Unit 2026-03-20 M D 690 $0.00 0 D — · 2026-03-20 to 2026-03-20 690 Common Stock (F2) Restricted stock units convert into shares of common stock on a one-for-one basis.