Blake G. Jones - 05 Mar 2026 Form 4 Insider Report for FINANCIAL INSTITUTIONS INC (FISI)

Role: Chief Marketing Officer
Signature: SANDRA L. BYERS By Power of Attorney from Blake G. Jones
Issuer symbol: FISI
Transactions as of: 05 Mar 2026
Net transactions value: $0
Form type: 4
Filing time: 06 Mar 2026, 16:05:04 UTC
Previous filing: 09 Jan 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
JONES BLAKE G	Chief Marketing Officer	220 LIBERTY STREET, WARSAW	SANDRA L. BYERS By Power of Attorney from Blake G. Jones	06 Mar 2026	0002004791

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
holding	FISI	Common Stock						232	05 Mar 2026	Held in 401K Plan

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
holding	FISI	Restricted Stock Units						0	05 Mar 2026	Restricted Stock Units	1,566		Direct	F1

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Each restricted stock unit represents a contingent right to receive one share of FISI common stock.