What are Brian D. Spielmann’s FBIZ share holdings after these transactions?

After the grant and related tax withholding, Brian D. Spielmann directly owns 7,311 FBIZ Common Stock shares. This figure reflects his position following the 3,190-share RSU vesting event and the 1,501-share tax-withholding disposition recorded on April 10, 2026.

FBIZ (FBIZ) CFO granted 3,190 shares; 1,501 withheld for taxes after RSU vesting

Filing Impact

(Neutral)

Filing Sentiment

(Neutral)

Form Type

Rhea-AI Filing Summary

FIRST BUSINESS FINANCIAL SERVICES, INC. CFO Brian D. Spielmann received 3,190 shares of Common Stock on 2026-04-10 from the vesting of Performance Restricted Stock Unit awards for the 2023–2025 performance period. To cover tax obligations, 1,501 shares were withheld at $58.60 per share, leaving him with 7,311 directly owned shares.

Insider Trade Summary

2 transactions reported

Mixed 2 txns

Insider Spielmann Brian D.

Role CFO

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	3,190	$0.00	--
Tax Withholding	Common Stock	1,501	$58.60	$88K

Holdings After Transaction: Common Stock — 8,812 shares (Direct)

Footnotes (1)

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Key Figures

Shares granted: 3,190 shares Tax-withheld shares: 1,501 shares Tax-withholding price: $58.60 per share +2 more

5 metrics

Shares granted 3,190 shares Common Stock issued on 2026-04-10 from Performance RSU vesting

Tax-withheld shares 1,501 shares Shares delivered for tax liability at $58.60 per share

Tax-withholding price $58.60 per share Value used for 1,501-share tax-withholding disposition

Shares owned after transactions 7,311 shares Direct FBIZ Common Stock holdings following 2026-04-10 entries

Performance period 2023–2025 Performance RSUs that vested into 3,190 shares

Key Terms

Performance Restricted Stock Unit, tax-withholding disposition, Common Stock

3 terms

Performance Restricted Stock Unit financial

"Issuance of Common Stock upon vesting of Performance Restricted Stock Unit awards for the performance period 2023-2025."

tax-withholding disposition financial

"Payment of exercise price or tax liability by delivering securities"

A tax-withholding disposition is an event or transaction—such as selling or transferring securities, exercising options, or receiving compensation—that triggers a requirement to hold back part of the payment and remit it to tax authorities. It matters to investors because it reduces the cash they receive immediately and can change the timing and amount of taxable income, like a cashier taking a portion of your sale proceeds to pay taxes before you get the rest.

Common Stock financial

"Issuance of Common Stock upon vesting of Performance Restricted Stock Unit awards"

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.

Form 4 Insider Transactions: What Each Field Means →

04/14/2026 - 04:25 PM

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^*

Spielmann Brian D.

(Last)

(First)

(Middle)

401 CHARMANY DRIVE

(Street)

MADISON

WISCONSIN

53719

(City)

(State)

(Zip)

UNITED STATES

(Country)

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)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
04/10/2026

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	04/10/2026		A		3,190⁽¹⁾	A	$0	8,812	D
Common Stock	04/10/2026		F		1,501	D	$58.6	7,311	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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)

Explanation of Responses:

1. Issuance of Common Stock upon vesting of Performance Restricted Stock Unit awards for the performance period 2023-2025.

	Peter J. Wilder (Pursuant to Power of Attorney previously filed)	04/14/2026
	** 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)

Source: View Original Filing on SEC EDGAR

FAQ

What insider transaction did FBIZ CFO Brian D. Spielmann report?

FBIZ CFO Brian D. Spielmann reported receiving 3,190 shares of Common Stock from vesting Performance Restricted Stock Units. On the same date, 1,501 shares were withheld at $58.60 per share to satisfy tax obligations, leaving him with 7,311 directly owned shares afterward.

How many FBIZ shares did the CFO receive from performance RSU vesting?

The CFO received 3,190 FBIZ Common Stock shares upon vesting of Performance Restricted Stock Unit awards for the 2023–2025 performance period. These shares represent equity-based compensation rather than an open-market purchase, awarded at no cash cost per share to the executive.

Why were 1,501 FBIZ shares disposed of in the Form 4 filing?

The 1,501 FBIZ shares were disposed of as a tax-withholding transaction at $58.60 per share, not an open-market sale. They were delivered to cover tax liabilities related to the vesting of Performance Restricted Stock Units, a common mechanism for handling associated tax obligations.

What performance period is tied to the vested FBIZ Performance Restricted Stock Units?

The vested Performance Restricted Stock Unit awards relate to the 2023–2025 performance period. Upon satisfying the performance conditions, these awards converted into 3,190 shares of FBIZ Common Stock that were issued to CFO Brian D. Spielmann as part of his equity compensation.