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FBIZ · First Business Financial Services, Inc.

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$68.69 -0.12 (-0.17%) At close · Aug 21
Market Cap
$581.01M
Shares
8.37M

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.

Holders: 141
Total Value: $375,506,331
Total Shares: 5,944,379

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 141 13F filers · Δ vs Mar 31, 2026
Top Holder
15.6%
Sep 2023 → Jun 2026 · range 12.3% – 18.0%
+0.6 pts
Top 5
40.1%
Sep 2023 → Jun 2026 · range 40.1% – 47.1%
−0.0 pts
Top 10
56.3%
Sep 2023 → Jun 2026 · range 56.3% – 65.1%
+0.0 pts
HHI
506
Sep 2023 → Jun 2026 · range 496 – 641
Broadly held+10

Quarterly Activity

vs Mar 31, 2026
New
12
Increased
65
Decreased
39
Sold Out
15
Unchanged
25
Holder count: -3
Institutional value: +20.5%
Shares held: +2.9%

Top Buyers

vs Mar 31, 2026
Institution Added Now Holds Open

Top Sellers

vs Mar 31, 2026
Institution Sold Now Holds Open

Top New Positions

vs Mar 31, 2026
Institution Acquired Value (USD) Open

Top Sold-Out Positions

vs Mar 31, 2026
Institution Previously Held Last Value (USD) Open
Showing 100 of 141
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 1521951 CUSIP 319390100 13F (30d) 125 filings 125 filers Visit website Investor relations