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Penumbra
PEN

Overview Fund Activity

417 hedge funds and large institutions have $9.28B invested in Penumbra in 2025 Q1 according to their latest regulatory filings, with 93 funds opening new positions, 141 increasing their positions, 130 reducing their positions, and 39 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
417
Holders Change
+49
Holders Change %
+13.32%
% of All Funds
5.66%
Holding in Top 10
6
Holding in Top 10 Change
+2
Holding in Top 10 Change %
+50%
% of All Funds
0.08%
New
93
Increased
141
Reduced
130
Closed
39
Calls
$95.8M
Puts
$15.9M
Net Calls
+$79.9M
Net Calls Change
+$25.8M

Top Buyers

1
JPMorgan Chase & Co
JPMorgan Chase & Co
New York
+$153M
2
Holocene Advisors
Holocene Advisors
New York
+$105M
3
Lord, Abbett & Co
Lord, Abbett & Co
New Jersey
+$63.7M
4
Point72 Asset Management
Point72 Asset Management
Connecticut
+$43.7M
5
Los Angeles Capital Management
Los Angeles Capital Management
California
+$39.8M

Top Sellers

1
William Blair Investment Management
William Blair Investment Management
Illinois
-$210M
2
CIP
Champlain Investment Partners
Vermont
-$167M
3
Bank of America
Bank of America
North Carolina
-$37M
4
PAMP
Polar Asset Management Partners
Ontario, Canada
-$21.9M
5
ClearBridge Investments
ClearBridge Investments
New York
-$20.6M
Name Holding Trade Value Shares
Change 		Shares
Change %
P8IP
126
Pier 88 Investment Partners
California
$4.14M +$4.14M +15,500 New
CM
127
Castleark Management
Illinois
$4.08M +$4.08M +15,245 New
TC
128
TwinBeech Capital
New York
$4.06M +$4.06M +15,176 New
PP
129
PDT Partners
New York
$4.03M +$948K +3,546 +31%
EI
130
EAM Investors
California
$3.99M +$3.99M +14,912 New
YCM
131
Yousif Capital Management
Michigan
$3.64M -$95.5K -357 -3%
PFSRSONJ
132
Police & Firemen's Retirement System of New Jersey
New Jersey
$3.56M +$27.8K +104 +0.8%
Commonwealth Equity Services
133
Commonwealth Equity Services
Massachusetts
$3.5M +$3.25M +12,162 +1,323%
Ensign Peak Advisors
134
Ensign Peak Advisors
Utah
$3.46M -$19.8M -73,976 -85%
Calamos Advisors
135
Calamos Advisors
Illinois
$3.45M -$410K -1,532 -11%
US Bancorp
136
US Bancorp
Minnesota
$3.31M -$132K -492 -4%
State of New Jersey Common Pension Fund D
137
State of New Jersey Common Pension Fund D
New Jersey
$3.31M -$318K -1,188 -9%
RA
138
Rational Advisors
New York
$3.26M +$3.26M +12,200 New
LTAS
139
Linden Thomas Advisory Services
North Carolina
$3.11M +$75.4K +282 +2%
Comerica Bank
140
Comerica Bank
Texas
$3.1M -$111K -415 -3%
Twin Tree Management
141
Twin Tree Management
Texas
$2.98M +$789K +2,950 +36%
LSERS
142
Louisiana State Employees Retirement System
Louisiana
$2.89M +$26.7K +100 +0.9%
TFS
143
Thoroughbred Financial Services
Tennessee
$2.88M +$85.5K +320 +3%
Teacher Retirement System of Texas
144
Teacher Retirement System of Texas
Texas
$2.88M +$775K +2,897 +37%
Mitsubishi UFJ Asset Management
145
Mitsubishi UFJ Asset Management
Japan
$2.85M – – –
Handelsbanken Fonder
146
Handelsbanken Fonder
Sweden
$2.82M – – –
Man Group
147
Man Group
United Kingdom
$2.81M -$2.64M -9,874 -48%
ASRS
148
Arizona State Retirement System
Arizona
$2.8M -$67.1K -251 -2%
MFAM
149
Motley Fool Asset Management
Virginia
$2.77M -$139K -520 -5%
BAMCO Inc
150
BAMCO Inc
New York
$2.67M +$2.67M +10,000 New
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