Stock Ownership/FORM

FORMFACTOR INC (FORM): Ownership & Insider Activity

Hedge funds and institutional managers reporting a position in FORM · Information Technology. Based on the most recent 13F filing from each holder, sourced from SEC EDGAR.

Reported Holders
32
13F filers
Aggregate Value
$1.0B
Across holders
Last Price
$107.90
2026-08-24
Sector
Information Technology
GICS
Quarterly fund activity21 increased10 reduced3 exited
Full exits: FARALLON CAPITAL MANAGEMENT LLC, CAPSTONE INVESTMENT ADVISORS, LLC, Pinpoint Asset Management Ltd
Institutional Holders of FORM
↗
32 holders
Manager⇅Type⇅Shares⇅Market Value▼% of Total⇅% of Portfolio⇅Action⇅QoQ Change⇅Quarter⇅
PRIMECAP MANAGEMENT CO/CA/
CIK 0000763212
Institutional Manager1.69M$270.3M26.9%0.2%Reduced$-15.8MQ2 2026
MILLENNIUM MANAGEMENT LLC
CIK 0001273087
Hedge Fund671K$107.3M10.7%0.0%Added+$78.4MQ2 2026
TWO SIGMA INVESTMENTS, LP
CIK 0001179392
Hedge Fund426K$68.1M6.8%0.0%Added+$33.9MQ2 2026
SHAW D E & CO INC
CIK 0001009207
Hedge Fund421K$67.4M6.7%0.0%Added+$65.2MQ2 2026
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
CIK 0001164508
Hedge Fund376K$60.2M6.0%0.0%Reduced$-21.2MQ2 2026
Fisher Asset Management, LLC
CIK 0000850529
Institutional Manager314K$50.2M5.0%0.0%Reduced$-18.0MQ2 2026
RENAISSANCE TECHNOLOGIES LLC
CIK 0001037389
Hedge Fund296K$47.3M4.7%0.1%Added—Q2 2026
Select Equity Group, L.P.
CIK 0001592643
Hedge Fund286K$45.7M4.6%0.2%Added+$4.5MQ2 2026
TUDOR INVESTMENT CORP ET AL
CIK 0000923093
Hedge Fund252K$40.3M4.0%0.1%Added+$17.7MQ2 2026
CITADEL ADVISORS LLC
CIK 0001423053
Hedge Fund240K$38.4M3.8%0.0%Added+$28.3MQ2 2026
PRIMECAP MANAGEMENT CO/CA/Reduced
Institutional Manager
$270.3M· 26.9% of total· 0.2% port· 1.69M sh· $-15.8M QoQ· Q2 2026
MILLENNIUM MANAGEMENT LLCAdded
Hedge Fund
$107.3M· 10.7% of total· 0.0% port· 671K sh· +$78.4M QoQ· Q2 2026
TWO SIGMA INVESTMENTS, LPAdded
Hedge Fund
$68.1M· 6.8% of total· 0.0% port· 426K sh· +$33.9M QoQ· Q2 2026
SHAW D E & CO INCAdded
Hedge Fund
$67.4M· 6.7% of total· 0.0% port· 421K sh· +$65.2M QoQ· Q2 2026
ARROWSTREET CAPITAL, LIMITED PARTNERSHIPReduced
Hedge Fund
$60.2M· 6.0% of total· 0.0% port· 376K sh· $-21.2M QoQ· Q2 2026
Fisher Asset Management, LLCReduced
Institutional Manager
$50.2M· 5.0% of total· 0.0% port· 314K sh· $-18.0M QoQ· Q2 2026
RENAISSANCE TECHNOLOGIES LLCAdded
Hedge Fund
$47.3M· 4.7% of total· 0.1% port· 296K sh· — QoQ· Q2 2026
Select Equity Group, L.P.Added
Hedge Fund
$45.7M· 4.6% of total· 0.2% port· 286K sh· +$4.5M QoQ· Q2 2026
TUDOR INVESTMENT CORP ET ALAdded
Hedge Fund
$40.3M· 4.0% of total· 0.1% port· 252K sh· +$17.7M QoQ· Q2 2026
CITADEL ADVISORS LLCAdded
Hedge Fund
$38.4M· 3.8% of total· 0.0% port· 240K sh· +$28.3M QoQ· Q2 2026
AQR CAPITAL MANAGEMENT LLCReduced
Hedge Fund
$34.3M· 3.4% of total· 0.0% port· 214K sh· +$32.7M QoQ· Q2 2026
MARSHALL WACE, LLPAdded
Hedge Fund
$30.5M· 3.0% of total· 0.0% port· 191K sh· +$25.0M QoQ· Q2 2026
Bridgewater Associates, LPAdded
Hedge Fund
$26.0M· 2.6% of total· 0.1% port· 163K sh· +$18.0M QoQ· Q2 2026
ADAGE CAPITAL PARTNERS GP, L.L.C.Added
Hedge Fund
$24.0M· 2.4% of total· 0.0% port· 150K sh· — QoQ· Q2 2026
Man Group plcReduced
Hedge Fund
$20.1M· 2.0% of total· 0.0% port· 126K sh· $-30.3M QoQ· Q2 2026
Point72 Asset Management, L.P.Added
Hedge Fund
$19.9M· 2.0% of total· 0.0% port· 124K sh· +$19.1M QoQ· Q2 2026
First Eagle Investment Management, LLCReduced
Institutional Manager
$17.0M· 1.7% of total· 0.0% port· 106K sh· $-40.5M QoQ· Q2 2026
BALYASNY ASSET MANAGEMENT LLCAdded
Hedge Fund
$13.0M· 1.3% of total· 0.0% port· 81K sh· +$10.6M QoQ· Q2 2026
Qube Research & Technologies LtdReduced
Hedge Fund
$9.2M· 0.9% of total· 0.0% port· 57K sh· $-16.5M QoQ· Q2 2026
ExodusPoint Capital Management, LPAdded
Hedge Fund
$4.8M· 0.5% of total· 0.0% port· 30K sh· — QoQ· Q2 2026
Hudson Bay Capital Management LPAdded
Hedge Fund
$2.6M· 0.3% of total· 0.0% port· 16K sh· — QoQ· Q2 2026
Squarepoint Ops LLCReduced
Hedge Fund
$1.2M· 0.1% of total· 0.0% port· 7K sh· +$796K QoQ· Q2 2026
Schonfeld Strategic Advisors LLCAdded
Hedge Fund
$1.1M· 0.1% of total· 0.0% port· 7K sh· +$607K QoQ· Q2 2026
Brevan Howard Capital Management LPAdded
Hedge Fund
$956K· 0.1% of total· 0.0% port· 6K sh· +$180K QoQ· Q2 2026
Magnetar Financial LLCReduced
Hedge Fund
$801K· 0.1% of total· 0.0% port· 5K sh· $-325K QoQ· Q2 2026
Rockefeller Capital Management L.P.Added
Hedge Fund
$745K· 0.1% of total· 0.0% port· 5K sh· $-899K QoQ· Q2 2026
MAVERICK CAPITAL LTDAdded
Hedge Fund
$728K· 0.1% of total· 0.0% port· 5K sh· — QoQ· Q2 2026
Gotham Asset Management, LLCReduced
Hedge Fund
$621K· 0.1% of total· 0.0% port· 4K sh· $-856K QoQ· Q2 2026
Fulcrum Asset Management LLPAdded
Hedge Fund
$387K· 0.0% of total· 0.0% port· 3K sh· — QoQ· Q2 2026
CAXTON ASSOCIATES LLPAdded
Hedge Fund
$236K· 0.0% of total· 0.0% port· 1K sh· — QoQ· Q2 2026
Walleye Capital LLCAdded
Hedge Fund
$136K· 0.0% of total· 0.0% port· 853 sh· +$24K QoQ· Q2 2026
Ancora Advisors, LLCUnchanged
Hedge Fund
$24K· 0.0% of total· 0.0% port· 152 sh· +$0 QoQ· Q2 2026
1–10 of 32
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