Financial Institutions Inc. (FISI) Form 5 details CMO Blake Jones’s 232 shares in 401(k)

Rhea-AI Filing Summary

Financial Institutions Inc. reported updated insider holdings for its Chief Marketing Officer, Blake G. Jones, in an annual Form 5 filing. As of the fiscal year ended 12/31/2025, Jones beneficially owned 232 shares of Financial Institutions Inc. common stock held indirectly through the company’s 401(k) plan. A footnote explains that this total includes 10 shares acquired under the FISI 401(k) plan since the date of Jones’s last Section 16 filing. The filing reflects ongoing plan-based accumulation of shares rather than a discretionary open-market trade.

SEC Form 5

FORM 5

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

ANNUAL 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

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

Form 3 Holdings Reported.

Form 4 Transactions Reported.

1. Name and Address of Reporting Person^*

JONES BLAKE G

(Last) (First) (Middle)

220 LIBERTY STREET

(Street)

WARSAW NY 14569

(City) (State) (Zip)

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

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

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

3. Statement for Issuer's Fiscal Year Ended (Month/Day/Year)
12/31/2025

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

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

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

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 at end of Issuer's Fiscal Year (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
				Amount	(A) or (D)	Price
Common Stock							232(1)	I	Held in 401K Plan

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)
					(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Represents 10 shares acquired under the FISI 401(k) plan since the date of the reporting person's last Section 16 filing.

	SANDRA L. BYERS By Power of Attorney from Blake G. Jones	01/09/2026
	** 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.

FAQ

What does Financial Institutions Inc. (FISI) disclose in this Form 5 for Blake G. Jones?

The Form 5 shows that Chief Marketing Officer Blake G. Jones beneficially owned 232 shares of Financial Institutions Inc. common stock as of the fiscal year ended 12/31/2025, held indirectly through the company’s 401(k) plan.

How many FISI shares were acquired by Blake G. Jones through the 401(k) plan?

A footnote states that the reported holdings include 10 shares acquired under the FISI 401(k) plan since the date of Jones’s last Section 16 filing.

Are Blake G. Jones’s FISI shares held directly or indirectly?

The filing classifies the 232 shares as held indirectly, with the nature of ownership described as "Held in 401K Plan".

What is Blake G. Jones’s role at Financial Institutions Inc. (FISI)?

Blake G. Jones is identified as an officer of Financial Institutions Inc., serving as the company’s Chief Marketing Officer.

Does this Form 5 show any derivative securities for Blake G. Jones at FISI?

The section for derivative securities lists no entries, indicating there were no reportable derivative holdings or transactions for Jones in this Form 5 excerpt.

For which fiscal year does this FISI Form 5 report Blake G. Jones’s holdings?

The statement covers Financial Institutions Inc.’s fiscal year ended 12/31/2025, summarizing Jones’s reportable beneficial ownership at that date.