13F filer

First Business Financial Services

As of Sep 30, 2026 Filed Oct 29, 2026 CIK 1521951 SEC filings ↗

13F Value

$1.28B

Positions

207

Top Position

VTI23.2%

Top 5

52.7%

Latest filing changes

vs Jun 30, 2026

1 AGG iShares Core U.S. Aggregate Bond ETF +8.7%+$3.2M

2 GNRC Generac Hldgs >999%+$2.9M

3 JPST JPMorgan Ultra-Short Income ETF +9.5%+$1.7M

4 LRCX Lam Research +7.6%+$813K

5 VTIP Vanguard Short-Term Inflation-Protected Securities Index Fund ETF Shares +10.7%+$788K

Holdings207

#
1	VTI Vanguard Morningstar Total Stock Market Index Fund — ETF Shares	23.2%	$297.6M	+0.0%	795.2K	22.8%	ETF
2	IEFA iShares Core MSCI EAFE ETF	11.8%	$151.2M	-0.5%	1.56M	11.7%	ETF
3	IWF iShares Russell 1000 Growth ETF	7.2%	$92.2M	+0.5%	735.8K	7.0%	ETF
4	IJR iShares Core S&P Small-Cap ETF	5.3%	$68.5M	+0.3%	503.3K	5.8%	ETF
5	IWD iShares Russell 1000 Value ETF	5.1%	$65.6M	-0.5%	264.4K	5.0%	ETF
6	DGRO iShares Core Dividend Growth ETF	5.0%	$63.9M	+1.0%	847.3K	4.9%	ETF
7	AGG iShares Core U.S. Aggregate Bond ETF	3.1%	$40.0M	+8.7%	422.6K	3.0%	ETF
8	SPY State Str SPDR S&P 500 ETF T — Tr Unit	2.6%	$33.3M	—	43.7K	2.5%	ETF
9	NVDA NVIDIA	1.9%	$24.0M	+2.4%	105.0K	1.6%	Common Stock
10	FBIZ First Business Finl Svcs	1.8%	$22.5M	-3.8%	327.2K	1.7%	Common Stock
11	JPST JPMorgan Ultra-Short Income ETF	1.6%	$20.1M	+9.5%	398.3K	1.4%	ETF
12	AAPL Apple	1.5%	$18.8M	-5.9%	56.4K	1.3%	Common Stock
13	IJH iShares Core S&P Mid-Cap ETF	1.3%	$17.0M	-66.8%	236.5K	4.3%	ETF
14	GOOGL Alphabet Class A Filing details 02079K305 Sep 30, 2026 44,847 reported quantity $15,430,956 reported value	1.2%	$15.4M	+2.9%	44.8K	1.2%	Common Stock
15	AVGO Broadcom	1.2%	$15.0M	+3.8%	42.8K	1.2%	Common Stock
16	ANET Arista Networks Filing details 040413205 Sep 30, 2026 70,066 reported quantity $14,264,737 reported value	1.1%	$14.3M	+1.9%	70.1K	0.9%	Common Stock
17	JPM JPMorgan Chase	1.0%	$12.2M	+2.0%	36.8K	0.9%	Common Stock
18	LRCX Lam Research Filing details 512807306 Sep 30, 2026 34,990 reported quantity $11,494,565 reported value	0.9%	$11.5M	+7.6%	35.0K	1.1%	Common Stock
19	GUNR Northern Trust Morningstar Global Upstream Natural Resources ETF	0.8%	$10.6M	NEW	188.0K	—	ETF
20	CIEN Ciena	0.8%	$10.2M	+0.4%	28.9K	1.1%	Common Stock

Change compares with the prior filing. Prior % is the share of the portfolio in that filing. Trend shows the quantity held in each of the last four filings: green rose, red fell, grey unchanged.

Exited in Latest Filing8

#	Holding	Prior %	Prior Value	Change	Prior Quantity	Trend (4Q)	Type

Compared with the immediately prior published filing (Jun 30, 2026). Prior values are shown for context and are not included in current totals.