FIRST BUSINESS FINANCIAL SER (FBIZ) Institutional Selling Activity

Several institutional investors tracked by InsiderSet reduced exposure to FIRST BUSINESS FINANCIAL SER (FBIZ) during the quarter ended March 31, 2026 based on sequential SEC Form 13F filings.

The largest disclosed institutional seller of FBIZ during the latest reporting period reduced its reported position by approximately $722,190.052 based on quarter-end filing values.

Institutional selling activity may reflect profit-taking, sector rotation, portfolio rebalancing, or changing conviction levels among major investment firms. InsiderSet tracks quarter-over-quarter holding reductions, full exits, estimated value changes, and historical selling activity using publicly disclosed SEC filing data.

The investors covered on this page collectively reduced approximately $2.42M in reported FBIZ exposure during the latest filing period, although many institutional holders continue to maintain significant long-term ownership positions in FIRST BUSINESS FINANCIAL SER.

Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q1 2026Renaissance Technologies LLCSell-5,800122,465$6,604,537
Q4 2025Renaissance Technologies LLCSell-13,300128,265$6,964,790
Q3 2025Renaissance Technologies LLCSell-9,100141,565$7,256,622
Q1 2025Renaissance Technologies LLCSell-5,600142,265$6,707,795
Q4 2024Renaissance Technologies LLCSell-13,900147,865$6,844,671
Q4 2023Renaissance Technologies LLCSell-888152,077$6,098
Q3 2023Renaissance Technologies LLCSell-1,500152,965$4,590
Q2 2023Renaissance Technologies LLCSell-16,000154,465$4,555
Q1 2023Renaissance Technologies LLCSell-4,300170,465$5,201
Q3 2022Renaissance Technologies LLCSell-37,148168,917$5,458
Q2 2022Renaissance Technologies LLCSell-9,600206,065$6,427
Q1 2022Renaissance Technologies LLCSell-10,800215,665$7,076
Q4 2021Renaissance Technologies LLCSell-20,641226,465$6,606
Q3 2021Renaissance Technologies LLCSell-22,859247,106$7,094
Q1 2021Renaissance Technologies LLCSell-6,600221,365$5,474
Q3 2020Renaissance Technologies LLCSell-24,700219,665$3,139
Q2 2020Renaissance Technologies LLCSell-32,315244,365$4,020
Q4 2018Renaissance Technologies LLCSell-23,700184,900$3,607
Q4 2017Renaissance Technologies LLCSell-10,900155,600$3,442
Q3 2017Renaissance Technologies LLCSell-1,600166,500$3,788
Q3 2016Renaissance Technologies LLCSell-1,700128,600$3,022
Q2 2016Renaissance Technologies LLCSell-5,000130,300$3,058
Q1 2016Renaissance Technologies LLCSell-14,500135,300$3,102
Q1 2015Renaissance Technologies LLCSell-50053,100$2,296

Frequently asked questions about FBIZ activity

  • Which institutional owners are buying FBIZ?

    Institutional owners buying FBIZ include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in FBIZ activity?

    "Buy" means an investor increased their reported position in FBIZ compared to the prior reporting period. This reflects growing exposure to FIRST BUSINESS FINANCIAL SER (FBIZ) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in FBIZ increasing?

    Institutional interest in FBIZ can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.

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