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FBIZ · First Business Financial Services, Inc. · Holdings

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$70.71 +0.07 (+0.10%) At close · Oct 6
Market Cap
$590.22M
Shares
8.37M
Volume · Oct 6 72.92K Avg daily vol (3M) 62.29K

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Some SEC filings for this period have not finished importing. Holder totals and changes may be incomplete; these filings remain queued for recovery.
The Sep 30, 2026 filing window is still open — showing the latest known positions. Funds that have not filed yet carry their prior-quarter positions; a fund that filed without this stock counts as sold out. Each fund's Change is measured against its own previous reported quarter, shown in the Reported column. Pick a completed quarter in the Quarter selector below to put every fund on one quarter and see the stock-wide activity breakdown.
Holders: 141
Total Value: $375,473,738
Total Shares: 5,943,803
Showing 1–100 of 141 holdings by value · page 1 of 2

Institutional Ownership Trend

27 quarters

Holder Concentration

Across 141 13F filers
Top Holder
15.6%
Sep 2023 → Jun 2026 · range 12.3% – 18.0%
of institutional value
Top 5
40.1%
Sep 2023 → Jun 2026 · range 40.1% – 47.1%
of institutional value
Top 10
56.3%
Sep 2023 → Jun 2026 · range 56.3% – 65.1%
of institutional value
HHI
506
Sep 2023 → Jun 2026 · range 496 – 641
Broadly held
Showing 100 of 141
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 1521951 CUSIP 319390100 13F (30d) 3 filings 3 filers Visit website Investor relations