First Business Financial Services insider gifts shares; 16,992 indirect

Rhea-AI Filing Summary

FIRST BUSINESS FINANCIAL SERVICES, INC. (FBIZ) insider filed a Form 4 reporting two gifts of 200 shares each on 11/12/2025 (Transaction Code G).

The filing notes that gift transactions list no price. Following the reported transactions, the filing shows 16,992 shares held indirectly by a 401(k) Plan. The reporting person is identified as both CEO and Director, and the filing was made by one reporting person.

Insider Trade Summary

400 shares gifted

Mixed 3 txns

Insider CHAMBAS COREY A

Role CEO

Type	Security	Shares	Price	Value
Gift	Common Stock	200	$0.00	--
Gift	Common Stock	200	$0.00	--
holding	Common Stock	--	--	--

Holdings After Transaction: Common Stock — 118,316 shares (Direct); Common Stock — 16,992 shares (Indirect, By 401(k) Plan)

Footnotes (1)

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Form 4 Insider Transactions: What Each Field Means →

Accepted by SEC EDGAR 11/14/2025 - 04:15 PM Learn about SEC filing dates

FAQ

What insider transaction did FBIZ report on Form 4?

Two gifts of 200 shares each were reported with a transaction date of 11/12/2025.

What does Transaction Code G mean in the FBIZ Form 4?

Code G indicates a gift; the filing states price is not applicable for gifts.

How many shares are held indirectly after the transactions?

The filing lists 16,992 shares held indirectly by a 401(k) Plan.

What roles does the reporting person hold at FBIZ?

The reporting person is a Director and Officer (CEO).

How many reporting persons filed this Form 4 for FBIZ?

It was filed by one reporting person.

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^*

CHAMBAS COREY A

(Last) (First) (Middle)

401 CHARMANY DRIVE

(Street)

MADISON WI 53719

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
FIRST BUSINESS FINANCIAL SERVICES, INC. [ FBIZ ]

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

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

3. Date of Earliest Transaction (Month/Day/Year)
11/12/2025

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 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	11/12/2025		G		200	D	(1)	118,316	D
Common Stock	11/12/2025		G		200	D	(1)	118,116	D
Common Stock								16,992	I	By 401(k) 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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Transaction is a gift, therefore price is not applicable.

	Peter J. Wilder (Pursuant to Power of Attorney)	11/14/2025
	** 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.