FBIZ First Business Financial Services, Inc.

NASDAQ
$70.80

First Business Financial Services, Inc. (FBIZ) Hedge Fund Activity

This view isolates hedge funds from the broader institutional ownership shown on the Institutional tab. A pension fund tracking an index may have no view on a stock; when a hedge fund builds or exits a position, that decision can carry information. This page measures those changes. Positions as of June 30, 2026.

Based on quarterly 13F long-equity filings. Changes compare reported quarter-end positions; filings can be reported up to 45 days later and do not represent a fund's complete exposure.

Hedge fund breadth
+27.27
7 buyers / 4 sellers
STRONG BUYING
Funds compared
11
funds with comparable FBIZ positions
11 current holders · 11 prior-quarter holders
Net share change
+97.0K
+111.7K added, -14.7K cut
Position activity
0 new 7 increased 4 reduced 0 exited

Most significant moves

Ranked by conviction, not size — how much of the fund's own book the position represents, how far it moved, and what kind of fund made it.

Fund Action Shares changed Change Est. value Portfolio wt. Score
CITADEL ADVISORS LLC Quant Increased +16.4K +369.0% $1.0M 0.0% 54
TWO SIGMA INVESTMENTS, LP Quant Increased +41.9K +132.1% $2.6M 0.0% 53
Squarepoint Ops LLC Quant Increased +13.7K +95.1% $864.2K 0.0% 47
MILLENNIUM MANAGEMENT LLC Reduced -7.8K -23.5% $493.4K 0.0% 32
Quadrature Capital Quant Increased +2.5K +40.7% $155.3K 0.0% 32
AQR Capital Management Long/Short Quant Increased +34.3K +36.2% $2.2M 0.0% 31
Man Group Event Long/Short Increased +1.9K +27.4% $117.0K 0.0% 28
RENAISSANCE TECHNOLOGIES LLC Quant Reduced -1.6K -1.3% $101.1K 0.0% 28
Engineers Gate Quant Reduced -3.1K -30.5% $196.1K 0.0% 24
Qube Research & Technologies Ltd Quant Increased +1.1K +1.8% $66.9K 0.0% 24

Most significant buyers

By move score, not size.

  • CITADEL ADVISORS LLC Increased · +16.4K
  • TWO SIGMA INVESTMENTS, LP Increased · +41.9K
  • Squarepoint Ops LLC Increased · +13.7K
  • Quadrature Capital Increased · +2.5K
  • AQR Capital Management Increased · +34.3K

Most significant sellers

By move score, not size.

  • MILLENNIUM MANAGEMENT LLC Reduced · -7.8K
  • RENAISSANCE TECHNOLOGIES LLC Reduced · -1.6K
  • Engineers Gate Reduced · -3.1K
  • Trexquant Investment Reduced · -2.1K

Hedge fund positions

Fund Tier Shares Previous Change Change % Portfolio wt. Action Score
CITADEL ADVISORS LLC 1 20.9K 4.5K +16.4K +369.0% 0.0% Increased 54
TWO SIGMA INVESTMENTS, LP 2 73.6K 31.7K +41.9K +132.1% 0.0% Increased 53
Squarepoint Ops LLC 2 28.1K 14.4K +13.7K +95.1% 0.0% Increased 47
MILLENNIUM MANAGEMENT LLC 2 25.4K 33.2K -7.8K -23.5% 0.0% Reduced 32
Quadrature Capital 3 8.5K 6.0K +2.5K +40.7% 0.0% Increased 32
AQR Capital Management 3 128.9K 94.6K +34.3K +36.2% 0.0% Increased 31
Man Group 3 8.6K 6.8K +1.9K +27.4% 0.0% Increased 28
RENAISSANCE TECHNOLOGIES LLC 1 120.9K 122.5K -1.6K -1.3% 0.0% Reduced 28
Engineers Gate 4 7.1K 10.2K -3.1K -30.5% 0.0% Reduced 24
Qube Research & Technologies Ltd 2 61.5K 60.5K +1.1K +1.8% 0.0% Increased 24
Trexquant Investment 3 11.9K 14.1K -2.1K -15.2% 0.0% Reduced 23

Every fund above opens. Subscribers can see any manager's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.

Sign in or subscribe

Hedge funds are identified from their 13F filings, which are due 45 days after quarter end and cover long U.S.-listed equity positions only. A fund's short book never appears, so a reduced position can mean a changed view or a changed hedge — the filing doesn't say which.