FORM FormFactor, Inc.

NASDAQ
$114.95

FormFactor, Inc. (FORM) 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
+44.19
31 buyers / 12 sellers
STRONG BUYING
Funds compared
43
funds with comparable FORM positions
39 current holders · 27 prior-quarter holders
Net share change
+2.35M
+2.86M added, -509.7K cut
Position activity
16 new 15 increased 8 reduced 4 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
Tremblant Capital Group Long/Short Growth New +713.5K — $114.1M 3.3% 80
RENAISSANCE TECHNOLOGIES LLC Quant New +295.6K — $47.3M 0.1% 63
Farallon Capital Management Event Value Sold Out -56.5K -100.0% $9.0M 0.0% 62
ADAGE CAPITAL PARTNERS GP, L.L.C. New +150.0K — $24.0M 0.0% 60
Bridgewater Associates Quant Macro Increased +112.4K +223.8% $18.0M 0.1% 60
Weiss Asset Management Event Quant New +81.8K — $13.1M 0.2% 59
WORLDQUANT MILLENNIUM ADVISORS LLC Quant New +9.1K — $1.5M 0.0% 58
MILLENNIUM MANAGEMENT LLC Increased +489.9K +270.8% $78.4M 0.1% 58
Point72 Asset Management, L.P. Increased +96.3K +342.0% $15.4M 0.0% 58
Maverick Capital Long/Short Growth New +4.6K — $728.3K 0.0% 57

Most significant buyers

By move score, not size.

  • Tremblant Capital Group New · +713.5K
  • RENAISSANCE TECHNOLOGIES LLC New · +295.6K
  • ADAGE CAPITAL PARTNERS GP, L.L.C. New · +150.0K
  • Bridgewater Associates Increased · +112.4K
  • Weiss Asset Management New · +81.8K

Most significant sellers

By move score, not size.

  • Farallon Capital Management Sold Out · -56.5K
  • Capstone Investment Advisors Sold Out · -7.0K
  • Edgestream Partners Sold Out · -45.9K
  • Voleon Capital Management Sold Out · -2.3K
  • Squarepoint Ops LLC Reduced · -94.4K

Hedge fund positions

Fund Tier Shares Previous Change Change % Portfolio wt. Action Score
Tremblant Capital Group 2 713.5K 0 +713.5K — 3.3% New 80
RENAISSANCE TECHNOLOGIES LLC 1 295.6K 0 +295.6K — 0.1% New 63
Farallon Capital Management 1 0 56.5K -56.5K -100.0% 0.0% Sold Out 62
ADAGE CAPITAL PARTNERS GP, L.L.C. 2 150.0K 0 +150.0K — 0.0% New 60
Bridgewater Associates 1 162.6K 50.2K +112.4K +223.8% 0.1% Increased 60
Weiss Asset Management 2 81.8K 0 +81.8K — 0.2% New 59
WORLDQUANT MILLENNIUM ADVISORS LLC 2 9.1K 0 +9.1K — 0.0% New 58
MILLENNIUM MANAGEMENT LLC 2 670.9K 180.9K +489.9K +270.8% 0.1% Increased 58
Point72 Asset Management, L.P. 1 124.5K 28.2K +96.3K +342.0% 0.0% Increased 58
Maverick Capital 2 4.6K 0 +4.6K — 0.0% New 57
Hudson Bay Capital Management 3 16.0K 0 +16.0K — 0.0% New 55
Balyasny Asset Management L.P. 2 81.3K 15.0K +66.3K +441.1% 0.0% Increased 55
Capstone Investment Advisors 3 0 7.0K -7.0K -100.0% 0.0% Sold Out 55
TWO SIGMA INVESTMENTS, LP 2 425.7K 213.5K +212.2K +99.4% 0.1% Increased 55
LMR Partners 3 10.0K 0 +10.0K — 0.0% New 55
Quadrature Capital 3 27.9K 0 +27.9K — 0.0% New 55
ExodusPoint Capital Management 3 30.1K 0 +30.1K — 0.0% New 54
Jain Global 3 52.4K 0 +52.4K — 0.1% New 54
Caxton Associates 3 1.5K 0 +1.5K — 0.0% New 53
MARSHALL WACE, LLP 2 191.0K 99.7K +91.3K +91.5% 0.0% Increased 52
Edgestream Partners 4 0 45.9K -45.9K -100.0% 0.0% Sold Out 52
Voleon Capital Management 3 0 2.3K -2.3K -100.0% 0.0% Sold Out 51
Squarepoint Ops LLC 2 7.4K 101.8K -94.4K -92.7% 0.0% Reduced 51
Centiva Capital 4 12.4K 0 +12.4K — 0.1% New 51
Y-Intercept 4 12.2K 0 +12.2K — 0.0% New 50
D. E. Shaw & Co., Inc. 1 421.4K 242.6K +178.7K +73.7% 0.0% Increased 49
CenterBook Partners 4 3.6K 0 +3.6K — 0.0% New 49
Quantbot Technologies 4 8.0K 0 +8.0K — 0.1% New 47
Tudor Investment Corporation 2 251.9K 141.3K +110.6K +78.3% 0.2% Increased 47
Schonfeld Strategic Advisors 3 7.1K 3.3K +3.8K +113.3% 0.0% Increased 45
Trexquant Investment 3 34.4K 190.9K -156.5K -82.0% 0.0% Reduced 45
Qube Research & Technologies Ltd 2 57.3K 160.4K -103.1K -64.3% 0.0% Reduced 44
Aquatic Capital Management 4 7.2K 2.8K +4.4K +159.2% 0.0% Increased 42
Walleye Capital 3 853 459 +394 +85.8% 0.0% Increased 42
Gotham Asset Management, LLC 2 3.9K 9.2K -5.4K -58.0% 0.0% Reduced 38
CITADEL ADVISORS LLC 1 240.3K 200.9K +39.4K +19.6% 0.0% Increased 34
Select Equity Group 1 285.7K 257.4K +28.3K +11.0% 0.2% Increased 33
Magnetar Capital 2 5.0K 6.4K -1.4K -21.6% 0.0% Reduced 29
Man Group 3 125.8K 161.0K -35.2K -21.9% 0.0% Reduced 29
Brevan Howard Capital Management 3 6.0K 4.9K +1.1K +23.3% 0.0% Increased 24
AQR Capital Management 3 214.2K 215.0K -796 -0.4% 0.0% Reduced 20
Engineers Gate 4 13.1K 14.5K -1.4K -9.6% 0.0% Reduced 19
Winton Group 4 4.4K 4.0K +314 +7.8% 0.0% Increased 19

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.

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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.