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FormFactor

335 hedge funds and large institutions have $4.24B invested in FormFactor in 2025 Q4 according to their latest regulatory filings, with 94 funds opening new positions, 102 increasing their positions, 105 reducing their positions, and 30 closing their positions.

New
Increased
Maintained
Reduced
Closed

213% more first-time investments, than exits

New positions opened: 94 | Existing positions closed: 30

140% more call options, than puts

Call options by funds: $9.24M | Put options by funds: $3.85M

100% more funds holding in top 10

Funds holding in top 10: 12 (+1)

55% more capital invested

Capital invested by funds: $2.73B → $4.24B (+$1.51B)

21% more funds holding

Funds holding: 277335 (+58)

0.85% more ownership

Funds ownership: 97.23%98.08% (+0.85%)

3% less repeat investments, than reductions

Existing positions increased: 102 | Existing positions reduced: 105

Holders
335
Holders Change
+58
Holders Change %
+20.94%
% of All Funds
4.07%
Holding in Top 10
2
Holding in Top 10 Change
+1
Holding in Top 10 Change %
+100%
% of All Funds
0.02%
New
94
Increased
102
Reduced
105
Closed
30
Calls
$9.24M
Puts
$3.85M
Net Calls
+$5.39M
Net Calls Change
-$5.2M
Name Holding Trade Value Shares
Change
Change in
Stake
Millennium Management
76
Millennium Management
New York
$4.59M -$1.55M -30,809 -27%
AG
77
Algert Global
California
$4.45M -$5.17M -102,591 -56%
SFI
78
Susquehanna Fundamental Investments
Pennsylvania
$4.16M
State of Wisconsin Investment Board
79
State of Wisconsin Investment Board
Wisconsin
$4.09M -$485K -9,631 -12%
California State Teachers Retirement System (CalSTRS)
80
California State Teachers Retirement System (CalSTRS)
California
$4.09M +$87.3K +1,733 +2%
MF
81
Magnetar Financial
Illinois
$4.06M +$3.67M +72,739 New
EI
82
EAM Investors
California
$3.94M +$3.56M +70,554 New
Marshall Wace
83
Marshall Wace
United Kingdom
$3.83M +$3.46M +68,653 New
Acadian Asset Management
84
Acadian Asset Management
Massachusetts
$3.78M +$3.42M +67,898 New
OAM
85
Oppenheimer Asset Management
New York
$3.42M -$513K -10,183 -14%
SI
86
Sora Investors
Pennsylvania
$3.39M -$2.66M -52,839 -47%
D.E. Shaw & Co
87
D.E. Shaw & Co
New York
$3.35M -$22.6M -448,752 -88%
HCA
88
Harbor Capital Advisors
Illinois
$3.05M -$986K -19,575 -26%
Thrivent Financial for Lutherans
89
Thrivent Financial for Lutherans
Minnesota
$2.97M -$119K -2,367 -4%
PP
90
PDT Partners
New York
$2.85M -$1.01M -20,062 -28%
Tudor Investment Corp
91
Tudor Investment Corp
Connecticut
$2.83M +$2.56M +50,741 New
Pathstone Holdings
92
Pathstone Holdings
New Jersey
$2.81M -$121K -2,399 -5%
NAMI
93
Nomura Asset Management International
Pennsylvania
$2.79M +$2.52M +49,966 New
IIM
94
INTECH Investment Management
Florida
$2.71M +$410K +8,131 +20%
Russell Investments Group
95
Russell Investments Group
United Kingdom
$2.48M +$105K +2,078 +5%
State of New Jersey Common Pension Fund D
96
State of New Jersey Common Pension Fund D
New Jersey
$2.47M -$1.62M -32,069 -42%
Creative Planning
97
Creative Planning
Kansas
$2.46M +$715K +14,197 +47%
Comerica Bank
98
Comerica Bank
Texas
$2.44M -$1.98M -39,276 -47%
State of Tennessee, Department of Treasury
99
State of Tennessee, Department of Treasury
Tennessee
$2.42M +$525K +10,418 +44%
MIM
100
MetLife Investment Management
New Jersey
$2.39M -$153K -3,039 -7%

FORM Hedge Fund Activity: Q4 2025 in Review

335 of the 8,223 institutional investors tracked by Wall St. Rank reported a position in FormFactor (FORM) for Q4 2025, worth a combined $4.24B — up 55% from $2.73B a quarter earlier.

Buyers outnumbered sellers: 94 funds opened new FORM positions and 30 closed out — a net gain of 64 holders — while 102 added to existing stakes and 105 trimmed.

The largest buyer was Victory Capital Management, adding an estimated $62.2M. The largest seller was AllianceBernstein, cutting an estimated $49.5M.

  • 335 institutional investors held FormFactor (FORM) as of Q4 2025, up from 277 in Q3 2025.
  • Funds reported $4.24B of FormFactor stock for Q4 2025, up 55% quarter-over-quarter.
  • 94 funds opened new FormFactor positions in Q4 2025 and 30 closed out, a net change of +64 holders.
  • The largest FormFactor buyer in Q4 2025 was Victory Capital Management, an estimated $62.2M added.
  • The largest FormFactor seller in Q4 2025 was AllianceBernstein, an estimated $49.5M sold.

Based on aggregated 13F filings for Q4 2025.