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Penumbra
PEN

Overview Fund Activity

444 hedge funds and large institutions have $9.17B invested in Penumbra in 2025 Q2 according to their latest regulatory filings, with 85 funds opening new positions, 166 increasing their positions, 139 reducing their positions, and 51 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
444
Holders Change
+27
Holders Change %
+6.47%
% of All Funds
5.95%
Holding in Top 10
3
Holding in Top 10 Change
-3
Holding in Top 10 Change %
-50%
% of All Funds
0.04%
New
85
Increased
166
Reduced
139
Closed
51
Calls
$73.2M
Puts
$14.5M
Net Calls
+$58.7M
Net Calls Change
-$21.2M

Top Buyers

1
Invesco
Invesco
Georgia
+$149M
2
Baillie Gifford & Co
Baillie Gifford & Co
United Kingdom
+$59.8M
3
Qube Research & Technologies (QRT)
Qube Research & Technologies (QRT)
United Kingdom
+$53.8M
4
Man Group
Man Group
United Kingdom
+$50.3M
5
AQR Capital Management
AQR Capital Management
Connecticut
+$49.5M

Top Sellers

1
T. Rowe Price Investment Management
T. Rowe Price Investment Management
Maryland
-$161M
2
Citadel Advisors
Citadel Advisors
Florida
-$145M
3
Holocene Advisors
Holocene Advisors
New York
-$108M
4
WP
Woodline Partners
California
-$39M
5
CIP
Champlain Investment Partners
Vermont
-$32.4M
Name Holding Trade Value Shares
Change 		Shares
Change %
OHWP
101
Oak Harbor Wealth Partners
North Carolina
$8.42M -$205K -800 -2%
PA
102
Perceptive Advisors
New York
$8.42M +$8.42M +32,797 New
Jane Street
103
Jane Street
New York
$8.33M +$6.58M +25,650 +377%
EGM
104
Engineers Gate Manager
New York
$8.22M +$7.11M +27,722 +642%
MF
105
Magnetar Financial
Illinois
$8.12M +$8.12M +31,636 New
CSS
106
Cubist Systematic Strategies
Connecticut
$8.1M +$8.1M +31,573 New
CFG
107
Citizens Financial Group
Rhode Island
$8M +$8M +31,169 New
Raymond James Financial
108
Raymond James Financial
Florida
$7.68M -$1.26M -4,909 -14%
Barclays
109
Barclays
United Kingdom
$7.55M +$442K +1,723 +6%
Macquarie Group
110
Macquarie Group
Australia
$7.54M +$1.93M +7,529 +34%
LPL Financial
111
LPL Financial
California
$7.31M +$789K +3,076 +12%
Ohio Public Employees Retirement System (OPERS)
112
Ohio Public Employees Retirement System (OPERS)
Ohio
$7.15M +$603K +2,348 +9%
Primecap Management
113
Primecap Management
California
$7.04M -$770K -3,000 -10%
Canada Life
114
Canada Life
Manitoba, Canada
$6.85M +$1.11M +4,324 +19%
Russell Investments Group
115
Russell Investments Group
United Kingdom
$6.83M +$1.27M +4,960 +23%
LNWWM
116
Laird Norton Wetherby Wealth Management
California
$6.64M +$6.64M +25,868 New
Janney Montgomery Scott
117
Janney Montgomery Scott
Pennsylvania
$6.35M +$5.57M +21,718 +717%
CM
118
Castleark Management
Illinois
$6.31M +$2.4M +9,346 +61%
WSFS
119
Wilmington Savings Fund Society
Delaware
$6.16M – – –
MIM
120
MetLife Investment Management
New Jersey
$5.78M -$91.1K -355 -2%
QCM
121
Quantinno Capital Management
New York
$5.64M -$2.95M -11,498 -34%
YIH
122
Y-Intercept (HK)
Hong Kong
$5.6M +$5.6M +21,820 New
RPAM
123
Rhenman & Partners Asset Management
Sweden
$5.52M +$4.95M +19,300 +877%
TAM
124
Trillium Asset Management
Massachusetts
$5.44M -$423K -1,648 -7%
WTA
125
Washington Trust Advisors
Massachusetts
$5.33M +$28.2K +110 +0.5%
3 4
5
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