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FormFactor
FORM

Overview Fund Activity

276 hedge funds and large institutions have $2.14B invested in FormFactor in 2025 Q1 according to their latest regulatory filings, with 42 funds opening new positions, 106 increasing their positions, 89 reducing their positions, and 61 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
276
Holders Change
-23
Holders Change %
-7.69%
% of All Funds
3.75%
Holding in Top 10
1
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.01%
New
42
Increased
106
Reduced
89
Closed
61
Calls
$11M
Puts
$4.16M
Net Calls
+$6.88M
Net Calls Change
-$15M

Top Buyers

1
Westfield Capital Management
Westfield Capital Management
Massachusetts
+$25.8M
2
Massachusetts Financial Services
Massachusetts Financial Services
Massachusetts
+$25.1M
3
RP
Reinhart Partners
Wisconsin
+$20.1M
4
Select Equity Group
Select Equity Group
New York
+$8.03M
5
PCMI
Paradigm Capital Management Inc
New York
+$7.29M

Top Sellers

1
Wellington Management Group
Wellington Management Group
Massachusetts
-$51M
2
TCM
TimesSquare Capital Management
New York
-$25.7M
3
OAM
Oberweis Asset Management
Illinois
-$14.8M
4
BlackRock
BlackRock
New York
-$12.9M
5
Franklin Resources
Franklin Resources
California
-$11M
Name Holding Trade Value Shares
Change 		Shares
Change %
OAM
276
Oberweis Asset Management
Illinois
– -$14.8M -337,480 Closed
Norges Bank
277
Norges Bank
Norway
– -$12.4M -282,875 Closed
Alyeska Investment Group
278
Alyeska Investment Group
Illinois
– -$8.89M -201,946 Closed
SSA
279
Schonfeld Strategic Advisors
New York
– -$4.92M -111,751 Closed
First Eagle Investment Management
280
First Eagle Investment Management
New York
– -$4.17M -94,688 Closed
Canada Pension Plan Investment Board
281
Canada Pension Plan Investment Board
Ontario, Canada
– -$3.5M -79,600 Closed
SAM
282
Soviero Asset Management
New York
– -$3.26M -74,000 Closed
CCS
283
Concentric Capital Strategies
Connecticut
– -$3.09M -70,167 Closed
MFS
284
Mirabella Financial Services
United Kingdom
– -$2.37M -53,883 Closed
Citadel Advisors
285
Citadel Advisors
Florida
– -$2.27M -51,511 Closed
TI
286
Trexquant Investment
Connecticut
– -$2.14M -48,620 Closed
Los Angeles Capital Management
287
Los Angeles Capital Management
California
– -$1.73M -39,306 Closed
Renaissance Technologies
288
Renaissance Technologies
New York
– -$1.61M -36,568 Closed
MA
289
MYDA Advisors
New York
– -$1.32M -30,000 Closed
Jennison Associates
290
Jennison Associates
New York
– -$1.06M -24,159 Closed
MMEA
291
Main Management ETF Advisors
California
– -$658K -14,952 Closed
Aviva
292
Aviva
United Kingdom
– -$649K -14,750 Closed
LPL Financial
293
LPL Financial
California
– -$586K -13,308 Closed
Walleye Trading
294
Walleye Trading
New York
– -$528K -11,994 Closed
MWM
295
Moran Wealth Management
Florida
– -$498K -11,317 Closed
SRL
296
Scientech Research LLC
New Jersey
– -$434K -9,853 Closed
MAM
297
Meeder Asset Management
Ohio
– -$431K -9,801 Closed
AI
298
Atom Investors
Texas
– -$399K -9,061 Closed
BHCM
299
Brevan Howard Capital Management
Jersey
– -$360K -8,179 Closed
MC
300
MIG Capital
California
– -$349K -7,922 Closed
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