Director Andrew W. Dorn Jr. of FINANCIAL INSTITUTIONS INC (FISI) granted 1,282 shares

Rhea-AI Filing Summary

FINANCIAL INSTITUTIONS INC director Andrew W. Dorn Jr. received a grant of 1,282 shares of Common Stock on May 20, 2026. The award was recorded at a price of $0.0000 per share, indicating a compensation-related grant rather than a market purchase. Following this acquisition, he directly holds 39,066 shares of the company’s common stock.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider DORN ANDREW W JR

Role null

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	1,282	$0.00	--

Holdings After Transaction: Common Stock — 39,066 shares (Direct, null)

Footnotes (1)

Key Figures

Shares granted: 1,282 shares Grant price: $0.0000 per share Shares held after: 39,066 shares

3 metrics

Shares granted 1,282 shares Common Stock award on May 20, 2026

Grant price $0.0000 per share Compensation-related share grant

Shares held after 39,066 shares Total direct holdings after transaction

Key Terms

Common Stock, Grant, award, or other acquisition, Form 4

3 terms

Common Stock financial

"security_title: "Common Stock""

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

Grant, award, or other acquisition financial

"transaction_code_description: "Grant, award, or other acquisition""

Form 4 regulatory

"INSIDER FILING DATA (Form 4)"

Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.

Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

DORN ANDREW W JR

(Last) (First) (Middle)

220 LIBERTY STREET

(Street)

WARSAW NEW YORK 14569

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
FINANCIAL INSTITUTIONS INC [ FISI ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/20/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	05/20/2026		A		1,282	A	$0	39,066	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

	SANDRA L. BYERS By Power of Attorney from Andrew W. Dorn	05/21/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

FAQ

What did Andrew W. Dorn Jr. acquire in the latest FISI Form 4 filing?

Andrew W. Dorn Jr. received a grant of 1,282 shares of FINANCIAL INSTITUTIONS INC common stock. The shares were awarded at $0.0000 per share as a compensation-related grant, not an open-market purchase.

When was the share award to director Andrew W. Dorn Jr. at FISI granted?

The share award to Andrew W. Dorn Jr. was granted on May 20, 2026. This date marks when the 1,282 common shares were credited to him under a compensation-related grant arrangement.

How many FINANCIAL INSTITUTIONS INC shares does Andrew W. Dorn Jr. hold after this grant?

After the grant, Andrew W. Dorn Jr. holds 39,066 shares of FINANCIAL INSTITUTIONS INC common stock. This figure reflects his direct ownership following the 1,282-share award reported in the Form 4.

Was the FISI Form 4 transaction a market purchase or a share grant?

The FISI Form 4 transaction was a share grant, not a market purchase. It is coded as a grant, award, or other acquisition, with 1,282 shares received at a price of $0.0000 per share.

Does the FISI Form 4 show any stock sales by Andrew W. Dorn Jr.?

The Form 4 does not show any stock sales by Andrew W. Dorn Jr. It reports only a single acquisition transaction, where he received 1,282 common shares as a grant and increased his direct holdings.

Is the share ownership of Andrew W. Dorn Jr. in FISI direct or indirect?

The 39,066 FINANCIAL INSTITUTIONS INC shares held by Andrew W. Dorn Jr. are reported as direct ownership. The filing lists his ownership type as direct with no separate indirect holding entity noted.