First Business Financial Services (FBIZ) reports $1.29B in Form 13F holdings

Rhea-AI Filing Summary

First Business Financial Services, Inc. filed a Form 13F holdings report as an institutional investment manager. The report states that 201 positions are included in the Form 13F information table, with a total reported value of $1,289,356,001, rounded to the nearest dollar. The firm reports no other included managers, indicating it is filing solely on its own behalf.

Key Figures

Form 13F Information Table Value Total: $1,289,356,001 Form 13F Information Table Entry Total: 201 Number of Other Included Managers: 0

3 metrics

Form 13F Information Table Value Total $1,289,356,001 Aggregate value of all reportable positions, rounded to nearest dollar

Form 13F Information Table Entry Total 201 Number of individual reportable holdings in the 13F table

Number of Other Included Managers 0 Filed solely on behalf of First Business Financial Services, Inc.

Key Terms

Form 13F, institutional investment manager, 13F HOLDINGS REPORT

3 terms

Form 13F regulatory

"Form 13F Information Table Value Total"

A Form 13F is a quarterly filing that large investment managers must submit to disclose their holdings in publicly traded stocks and certain other securities. It acts like a peek into the portfolios of big investors, helping other market participants see what large players are buying or selling and offering clues about investment trends, crowded trades, and potential market impact.

institutional investment manager regulatory

"The institutional investment manager filing this report"

13F HOLDINGS REPORT regulatory

"Report Type (Check only one.) X | 13F HOLDINGS REPORT."

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Available on EDGAR 07/28/2026 - 10:16 AM Accepted by SEC EDGAR 07/28/2026 - 10:16 AM Learn about SEC filing dates

FAQ

What does First Business Financial Services (FBIZ) report in this Form 13F?

First Business Financial Services, Inc. reports 201 equity positions in its Form 13F information table with an aggregate reported value of $1,289,356,001, based on securities over which it has investment discretion.

How large is the Form 13F portfolio reported by FBIZ?

The Form 13F portfolio reported by FBIZ totals $1,289,356,001. This figure reflects the aggregate value of all reportable positions included in the 13F information table, rounded to the nearest dollar as disclosed.

How many holdings does FBIZ disclose on its latest Form 13F?

FBIZ discloses 201 holdings on its Form 13F. Each represents a reportable equity security position held under the firm’s investment discretion that meets the SEC’s 13F reporting requirements.

Does First Business Financial Services (FBIZ) file this 13F with any other managers?

No. The report lists 0 other included managers and specifies “NONE” for other managers, indicating FBIZ files this Form 13F solely on its own behalf rather than as part of a combination report.

What type of Form 13F filing did FBIZ submit?

FBIZ submitted a 13F HOLDINGS REPORT. This indicates all of its reportable holdings are included in this filing, rather than being reported by another manager or split across multiple reports.

The Securities and Exchange Commission has not necessarily reviewed the information in this filing and has not determined if it is accurate and complete.
The reader should not assume that the information is accurate and complete.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 13F

FORM 13F COVER PAGE

OMB APPROVAL

OMB Number:			3235-0006
Estimated average burden
hours per response:			23.8

Report for the Calendar Year or Quarter Ended: 06-30-2026

Check here if Amendment		Amendment Number:
This Amendment (Check only one.):		is a restatement.
		adds new holdings entries.

Institutional Investment Manager Filing this Report:
Name:	First Business Financial Services, Inc.
Address:	401 CHARMANY DRIVE
	PO BOX 44961
	MADISON, WI 53744
Form 13F File Number:	028-15585
CRD Number (if applicable):
SEC File Number (if applicable):

The institutional investment manager filing this report and the person by whom it is signed hereby represent that the person signing the report is authorized to submit it, that all information contained herein is true, correct and complete, and that it is understood that all required items, statements, schedules, lists, and tables, are considered integral parts of this form.

Person Signing this Report on Behalf of Reporting Manager:
Name:		Doug Heding
Title:		President, Private Wealth
Phone:		608-232-5971
Signature, Place, and Date of Signing:
/s/ Doug Heding			Madison, WI	07-20-2026
[Signature]			[City, State]	[Date]

Report Type (Check only one.):
X	13F HOLDINGS REPORT. (Check here if all holdings of this reporting manager are reported in this report.)
	13F NOTICE. (Check here if no holdings reported are in this report, and all holdings are reported by other reporting manager(s).)
	13F COMBINATION REPORT. (Check here if a portion of the holdings for this reporting manager are reported in this report and a portion are reported by other reporting manager(s).)

Form 13F Summary Page
	Report Summary:
	Number of Other Included Managers:		0
	Form 13F Information Table Entry Total:		201
	Form 13F Information Table Value Total:		1,289,356,001
			(round to nearest dollar)

List of Other Included Managers:

Provide a numbered list of the name(s) and Form 13F file number(s) of all institutional investment managers with respect to which this report is filed, other than the manager filing this report.

[If there are no entries in this list, state "NONE" and omit the column headings and list entries.]

NONE