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PEN

PEN

Penumbra, Inc.Healthcare

Institutional holders
455
As of Q2 2026
Total 13F value
$11.2B
Sum of disclosed positions
New positions
47
This quarter
Sold positions
67
This quarter

Top holders

Institutions with disclosed positions in this stock

FundValueShares% PortfolioChange
BlackRock, Inc.

Blackrock, Inc.

$1.4B4.30M0.01%-0.8%
HBK INVESTMENTS L P

Hbk Investments L P

$580.5M1.84M5.67%+12.5%
VANGUARD CAPITAL MANAGEMENT LLC

Vanguard Capital Management Llc

$539.9M1.71M0.01%+0.9%
VANGUARD PORTFOLIO MANAGEMENT LLC

Vanguard Portfolio Management Llc

$526.4M1.67M0.02%+0.8%
STATE STREET CORP

State Street Corporation

$392.6M1.24M0.01%+4.8%
ExodusPoint Capital Management, LP

Exoduspoint Capital Management, Lp

$344.3M1.09M2.22%+134.4%
BALYASNY ASSET MANAGEMENT L.P.

Balyasny Asset Management Llc

$344.2M1.09M0.43%+43.0%
JPMORGAN CHASE & CO

Jpmorgan Chase

$338.6M1.07M0.01%New Position
CITADEL ADVISORS LLC

Citadel Advisors

$283.4M897.5K0.02%+121.4%
GOLDMAN SACHS GROUP INC

Goldman Sachs Group

$267.5M847.1K0.02%+17.6%
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP

Arrowstreet Capital, Limited Partnership

$263.6M834.9K0.12%+108.6%
GEODE CAPITAL MANAGEMENT, LLC

Geode Capital Management, Llc

$251.5M796.5K0.01%+0.1%
NORGES BANK

Norges Bank

$237.5M752.2K0.02%New Position
UBS Group AG

Ubs Group Ag

$222.2M703.8K0.03%+25.6%
MILLENNIUM MANAGEMENT LLC

Millennium Management

$221.2M700.6K0.08%-36.2%
MORGAN STANLEY

Morgan Stanley

$186.9M591.8K0.01%+47.5%
AQR Arbitrage LLC

Aqr Arbitrage Llc

$178M563.9K2.54%+33.3%
WHITEBOX ADVISORS LLC

Whitebox Advisors Llc

$160M506.9K2.09%+13.9%
Capital World Investors

Capital World Investors

$151.5M479.7K0.02%+6.4%
Neuberger Berman Group LLC

Neuberger Berman Group Llc

$138.5M438.6K0.09%+44.4%
CITIGROUP INC

Citigroup Inc

$136.8M433.1K0.05%-30.3%
TWO SIGMA INVESTMENTS, LP

Two Sigma Investments

$135.2M428.1K0.10%+635.4%
TUDOR INVESTMENT CORP ET AL

Tudor Investment Corp Et Al

$126.5M400.6K0.18%-2.5%
Sixth Street Partners Management Company, L.P.

Sixth Street Partners Management Company, L.P.

$108.5M343.7K0.01%New Position
CHARLES SCHWAB INVESTMENT MANAGEMENT INC

Charles Schwab Investment Management Inc

$108.5M343.7K0.01%+6.6%
NORTHERN TRUST CORP

Northern Trust Corp

$105.2M333.1K0.01%+3.8%
DIMENSIONAL FUND ADVISORS LP

Dimensional Fund Advisors Lp

$103M326.1K0.02%+0.1%
ALLIANCEBERNSTEIN L.P.

Alliancebernstein L.P.

$99M301.6K0.03%+33.3%
Verition Fund Management LLC

Verition Fund Management Llc

$89.9M284.6K0.23%+109.3%
BANK OF AMERICA CORP /DE/

Bank Of America

$84M266.0K0.00%+2.4%
Invesco Ltd.

Invesco Ltd.

$83.4M264.0K0.01%-51.0%
Magnetar Financial LLC

Magnetar Financial Llc

$80.8M255.8K0.51%+1.8%
VANGUARD FIDUCIARY TRUST CO

Vanguard Fiduciary Trust Co

$79.5M251.7K0.02%+1.8%
Bank of New York Mellon Corp

Bank Of New York Mellon Corp

$74.3M235.3K0.01%-4.5%
Champlain Investment Partners, LLC

Champlain Investment Partners, Llc

$69.2M219.0K1.78%-55.4%
TIG Advisors, LLC

Tig Advisors, Llc

$67.9M215.1K3.01%+258.0%
LMR Partners LLP

Lmr Partners Llp

$67.5M213.9K0.21%-27.7%
FMR LLC

Fmr Llc

$66.6M211.0K0.00%-57.5%
Hudson Bay Capital Management LP

Hudson Bay Capital Management Lp

$64.1M203.1K0.17%-41.8%
D. E. Shaw & Co., Inc.

D.E. Shaw & Co

$62.3M197.3K0.03%-2.3%
ALPINE ASSOCIATES MANAGEMENT INC.

Alpine Associates Management Inc.

$59.7M189.0K3.73%+43.2%
Melqart Asset Management (UK) Ltd

Melqart Asset Management (Uk) Ltd

$58.6M185.7K5.58%+127.0%
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM

California State Teachers Retirement System

$57M13.71M0.01%+31694.6%
CAXTON ASSOCIATES LLP

Caxton Associates Llp

$56.6M179.4K1.06%-2.9%
ADAGE CAPITAL PARTNERS GP, L.L.C.

Adage Capital Partners Gp, L.L.C.

$55.8M176.7K0.08%+30.9%
Birnam Oak Advisors, LP

Birnam Oak Advisors, Lp

$54.1M171.3K5.44%+78.4%
GLAZER CAPITAL, LLC

Glazer Capital, Llc

$49.9M158.1K1.23%+66.8%
Westchester Capital Management, LLC

Westchester Capital Management, Llc

$49.7M157.5K2.18%+105.5%
WATER ISLAND CAPITAL LLC

Water Island Capital Llc

$47.5M150.5K4.42%+25.3%
Woodline Partners LP

Woodline Partners Lp

$46.1M145.8K0.14%-39.6%

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