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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 %
California Public Employees Retirement System
76
California Public Employees Retirement System
California
$15.7M +$1.15M +4,491 +8%
Tudor Investment Corp
77
Tudor Investment Corp
Connecticut
$14.9M +$14.9M +58,189 New
NCGI
78
Next Century Growth Investors
Minnesota
$12.8M +$2.09M +8,163 +20%
Envestnet Asset Management
79
Envestnet Asset Management
Illinois
$12.5M -$3.28M -12,773 -21%
State of Wisconsin Investment Board
80
State of Wisconsin Investment Board
Wisconsin
$12.3M -$57.2K -223 -0.5%
Retirement Systems of Alabama
81
Retirement Systems of Alabama
Alabama
$12.1M +$160K +622 +1%
TC
82
TwinBeech Capital
New York
$12.1M +$8.23M +32,057 +211%
HFS
83
Hantz Financial Services
Michigan
$11.5M -$1.23M -4,774 -10%
Canada Pension Plan Investment Board
84
Canada Pension Plan Investment Board
Ontario, Canada
$11.5M -$488K -1,900 -4%
WCM Investment Management
85
WCM Investment Management
California
$11.2M +$785K +3,060 +8%
IIM
86
INTECH Investment Management
Florida
$11.1M +$9.41M +36,671 +560%
Natixis Advisors
87
Natixis Advisors
Massachusetts
$10.8M +$1.93M +7,536 +22%
TRSOTSOK
88
Teachers Retirement System of the State of Kentucky
Kentucky
$10.5M +$1.97M +7,664 +23%
Wells Fargo
89
Wells Fargo
California
$10.4M +$1.21M +4,701 +13%
IHAM
90
Integral Health Asset Management
New York
$10.3M +$1.28M +5,000 +14%
Arrowstreet Capital
91
Arrowstreet Capital
Massachusetts
$10.1M +$10.1M +39,358 New
New York State Teachers Retirement System (NYSTRS)
92
New York State Teachers Retirement System (NYSTRS)
New York
$9.79M +$25.7K +100 +0.3%
JF
93
Jump Financial
Illinois
$9.17M +$8.88M +34,619 +3,153%
State Board of Administration of Florida Retirement System
94
State Board of Administration of Florida Retirement System
Florida
$9.1M +$113K +441 +1%
Ensign Peak Advisors
95
Ensign Peak Advisors
Utah
$8.91M +$5.59M +21,770 +168%
Two Sigma Investments
96
Two Sigma Investments
New York
$8.83M +$8.83M +34,400 New
California State Teachers Retirement System (CalSTRS)
97
California State Teachers Retirement System (CalSTRS)
California
$8.77M +$7.7K +30 +0.1%
SFI
98
Susquehanna Fundamental Investments
Pennsylvania
$8.62M – – –
AG
99
Algert Global
California
$8.48M +$2.46M +9,581 +41%
SO
100
STRS Ohio
Ohio
$8.44M +$8.44M +32,892 New
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4
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