13F

Stock

Penumbra Inc

PEN · held by 480 managers

Reported value

$10.8B

Holders

480

+120 new · −80 exited

Holders’ est. mark

$307.7M

Price effect on 167 books still in the name

Largest holder

$1.42B

BlackRock, Inc.

Notable conviction

Share of each notable manager’s 13F book.

Holder count by quarter

Who holds it

Notable only
InvestorSharesValueEst. markChange
BlackRock, Inc.4.33M$1.42B$72.3MAdded$134.4M
VANGUARD CAPITAL MANAGEMENT LLC1.69M$556.4MHeld
VANGUARD PORTFOLIO MANAGEMENT LLC1.65M$543.3MHeld
HBK INVESTMENTS L P1.63M$536.6MNew
State Street1.19M$389.4M$20.2MAdded$29.5M
MILLENNIUM MANAGEMENT LLC1.1M$360.6M$11.8MAdded$149.9M
BAILLIE GIFFORD & CO840.4K$276M$14.7MAdded$3.51M
GEODE CAPITAL MANAGEMENT, LLC795.4K$261.3M$13.4MAdded$22.9M
Balyasny Asset Management L.P.762.1K$250.2M$2.83MAdded$199.9M
GOLDMAN SACHS GROUP INC720.6K$236.6M$5.55MAdded$137.7M
CITIGROUP INC620.9K$203.9M$832KAdded$189.1M
UBS Group AG560.3K$184M$2.63MAdded$137.2M
Invesco Ltd.538.2K$176.7M$9.4MCut−$21.7M
Fidelity496.1K$162.9M$8.66MCut−$1.43B
Champlain Investment Partners, LLC491.4K$161.4M$8.58MCut−$25.8M
ExodusPoint Capital Management, LP465.2K$152.8M$379.8KAdded$146M
Capital World Investors450.8K$148M$7.45MAdded$15.4M
WHITEBOX ADVISORS LLC445K$146.1MNew
AQR Arbitrage LLC423.1K$138.9MNew
TUDOR INVESTMENT CORP ET AL411.1K$135MNew
JPMORGAN CHASE & CO402.6K$132.1M$6.96MCut−$115.8M
MORGAN STANLEY401.4K$131.8M$7.01MCut−$31.6M
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP400.2K$131.4M$3.04MAdded$77.4M
Hudson Bay Capital Management LP349K$114.6MNew
Amundi345.8K$113.5M$1.5MAdded$86.9M
DIMENSIONAL FUND ADVISORS LP325.8K$107M$5.67MAdded$6.01M
CHARLES SCHWAB INVESTMENT MANAGEMENT INC322.4K$105.9M$5.37MAdded$10.3M
NORTHERN TRUST CORP320.9K$105.4M$5.42MAdded$8.77M
CONGRESS ASSET MANAGEMENT CO317.3K$104.2M$5.54MCut−$14.7M
NEUBERGER BERMAN GROUP LLC303.6K$99.7M$88.1KAdded$98.1M
LMR Partners LLP295.7K$97.1MNew
BANK OF AMERICA CORP /DE/259.8K$85.3M$4.54MCut−$9.9M
Magnetar Financial LLC251.4K$82.6MNew
VANGUARD FIDUCIARY TRUST CO247.2K$81.2MHeld
Bank of New York Mellon Corp246.5K$81M$4.3MAdded$3.64M
Woodline Partners LP241.6K$79.3M$3.54MAdded$16.2M
ALLIANCEBERNSTEIN L.P.226.3K$70.4M−$0Added$21.1M
BANK OF NOVA SCOTIA211.8K$69.6M$24.8KAdded$69.1M
Soros Fund Management203.4K$66.8MNew
Citadel202.7K$66.6M$3.54MCut−$241.3M
D. E. Shaw & Co., Inc.201.9K$66.3M$131.4KAdded$64M
CAXTON ASSOCIATES LLP184.7K$60.6MNew
Decagon Asset Management LLP167.6K$55MNew
JANUS HENDERSON GROUP PLC167.1K$54.8M$2.91MCut−$93.1M
Kryger Capital LLC153.8K$50.5MHeld
Squarepoint Ops LLC147.8K$48.5MNew
PFM Health Sciences, LP139.8K$45.9M$2.44MAdded$764.1K
CAPITOLIS LIQUID GLOBAL MARKETS LLC139.4K$45.8MHeld
ADAGE CAPITAL PARTNERS GP, L.L.C.135K$44.3M$2.36MCut−$2.31M
ALPINE ASSOCIATES MANAGEMENT INC.131.9K$43.3MNew
Rock Springs Capital Management LP120.5K$39.6M$2.1MAdded$2.1M
WATER ISLAND CAPITAL LLC120.1K$39.4MNew
NATIXIS116.2K$38.2MNew
Holocene Advisors, LP110.6K$36.3M$1.93MCut−$110.2M
RHUMBLINE ADVISERS110.2K$36.2M$1.87MAdded$2.86M
HSBC HOLDINGS PLC110.2K$36.1M$25KAdded$35.6M
BRAIDWELL LP105.4K$34.6M$1.84MAdded$347.1K
Capula Management Ltd101.8K$33.4MNew
Slotnik Capital, LLC101K$33.2MNew
Nuveen, LLC100.7K$33.1M$1.29MAdded$10.1M
Clearbridge Investments, LLC97.1K$31.9M$1.7MCut−$182.9M
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC96.7K$31.8M$1.57MAdded$3.74M
Birnam Oak Advisors, LP96K$31.5MNew
PRINCIPAL FINANCIAL GROUP INC88.2K$29M$1.47MAdded$2.86M
Sand Grove Capital Management LLP86.8K$28.5MNew
BNP PARIBAS FINANCIAL MARKETS86.4K$28.4M$188KAdded$25M
Empyrean Capital Partners, LP85K$27.9MNew
Melqart Asset Management (UK) Ltd81.8K$26.9MNew
Allspring Global Investments Holdings, LLC79.9K$26.3M$1.56MCut−$84.7M
Alberta Investment Management Corp80K$26.3MNew
PICTON MAHONEY ASSET MANAGEMENT80K$26.3MNew
Icahn Capital77.4K$25.4M$1.35MCut−$32.1M
Westchester Capital Management, LLC76.6K$25.2MNew
FIRST TRUST ADVISORS LP75.2K$24.7M$451.1KAdded$16.7M
Man Group plc74.7K$24.5M$1.3MAdded$468K
Swiss National Bank73.6K$24.2M$1.27MAdded$1.46M
CARRET ASSET MANAGEMENT, LLC72K$23.6M$1.26MAdded$1.26M
Susquehanna Portfolio Strategies, LLC70.4K$23.1M$1.16MAdded$2.48M
AMERICAN CENTURY COMPANIES INC70K$23M$357.1KAdded$16.6M
NZS Capital, LLC69K$22.7M$1.2MCut−$11.1M
Verition Fund Management LLC68K$22.3M$197.3KAdded$18.8M
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND67.8K$22.3MNew
Calamos Advisors LLC66.9K$22M$81.4KAdded$20.5M
Legal & General Group Plc61.2K$20.1M$1.07MCut−$2.19M
California Public Employees Retirement System60.4K$19.8M$843.5KAdded$4.82M
TIG Advisors, LLC60.1K$19.7MNew
TWO SIGMA INVESTMENTS, LP58.2K$19.1M$434.1KAdded$11.4M
Sculptor Capital LP57K$18.7MNew
GABELLI FUNDS LLC56.6K$18.6MNew
ING GROEP NV55.8K$18.3MNew
VICTORY CAPITAL MANAGEMENT INC52.8K$17.3M$921.5KCut−$5.41M
GABELLI & Co INVESTMENT ADVISERS, INC.51.7K$17MNew
Nearwater Capital Markets, Ltd50K$16.4MNew
Retirement Systems of Alabama48.1K$15.8M$820.7KAdded$1.18M
PRELUDE CAPITAL MANAGEMENT, LLC48K$15.7M$47.7KAdded$14.9M
BNP PARIBAS ASSET MANAGEMENT Holding S.A.46.3K$15.2M$15.2MAdded$15.1M
SUSQUEHANNA INTERNATIONAL GROUP, LLP45.5K$15MNew
OSAIC HOLDINGS, INC.45.2K$14.9M$789.7KCut−$2.54M
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM43K$14.1M$614.4KAdded$3.18M
PSquared Asset Management AG42.8K$14MNew
Caisse de depot et placement du Quebec41.7K$13.7MNew
STATE OF WISCONSIN INVESTMENT BOARD40.3K$13.2M$703.6KCut−$1.13M
ROYAL BANK OF CANADA39.8K$13.1M$695KCut−$11.6M
Quarry LP39.3K$12.9MNew
MARSHALL WACE, LLP36.3K$11.9M$633.4KCut−$20.8M
CSS LLC/IL36.1K$11.9MNew
Ursa Fund Management, LLC35K$11.5MNew
AMERIPRISE FINANCIAL INC34.7K$11.4M$606.1KCut−$37.1M
VOYA INVESTMENT MANAGEMENT LLC33.9K$11.1M$592KCut−$34.1M
VANGUARD ASSET MANAGEMENT, Ltd33.6K$11MHeld
STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM33.5K$11M$584.3KAdded$28.4K
CIBRA Capital Ltd31.6K$10.4MNew
CITIZENS FINANCIAL GROUP INC/RI31.3K$10.3M$544.2KAdded$573.1K
WELLS FARGO & COMPANY/MN31.2K$10.3M$545.1KCut−$1.27M
OAK HARBOR WEALTH PARTNERS, LLC30.3K$9.95M$529.2KAdded$529.2K
SEI INVESTMENTS CO28.7K$9.44M$502.1KCut−$18.1M
SummitTX Capital, L.P.28K$9.2MNew
Onyx Bridge Wealth Group LLC26.7K$8.78M$466.7KAdded$451.2K
PRIMECAP MANAGEMENT CO/CA/26.3K$8.62M$458.5KAdded$458.5K
Aquatic Capital Management LLC26K$8.53M$8.62KAdded$8.38M
CREDIT INDUSTRIEL ET COMMERCIAL25.8K$8.48MNew
MOORE CAPITAL MANAGEMENT, LP25K$8.21MNew
NINE MASTS CAPITAL Ltd23.7K$7.8MNew
Tidal Investments LLC23.6K$7.76M$49.9KAdded$6.88M
Lighthouse Investment Partners, LLC23.4K$7.7MNew
Mariner, LLC22.6K$7.44M$351.7KAdded$1.13M
NATIONAL BANK OF CANADA /FI/22K$7.22MNew
GARDNER LEWIS ASSET MANAGEMENT L P22K$7.22MNew
WELLINGTON MANAGEMENT GROUP LLP21.8K$7.16M$380.5KCut−$28.2M
MetLife Investment Management, LLC21K$6.89M$365.1KAdded$390.4K
MANUFACTURERS LIFE INSURANCE COMPANY, THE20K$6.58M$304.1KCut−$20.3M
TPG GP A, LLC20K$6.57MNew
NEW YORK STATE COMMON RETIREMENT FUND19.9K$6.52M$346.7KCut−$29M
Greenland Capital Management LP19.8K$6.49MNew
Motley Fool Wealth Management, LLC19.7K$6.47M$343.9KCut−$1.74M
BOOTHBAY FUND MANAGEMENT, LLC19.3K$6.35MNew
ENVESTNET ASSET MANAGEMENT INC19.3K$6.34M$337KCut−$4.81M
JONES FINANCIAL COMPANIES LLLP18.5K$6.19M$14.5KAdded$6.01M
Washington Trust Advisors, Inc.18.7K$6.14M$326.2KCut−$115.9K
NEW YORK LIFE INVESTMENT MANAGEMENT LLC18.5K$6.08M$56.1KAdded$5.08M
Boussard & Gavaudan Investment Management LLP18.1K$5.94MNew
HARVEST MANAGEMENT LLC18K$5.91MNew
SIMPLEX TRADING, LLC17.7K$5.82M$2.27KAdded$5.78M
State of Tennessee, Department of Treasury17.7K$5.8M−$526.7KCut−$526.7K
PRUDENTIAL FINANCIAL INC17.6K$5.77M$193.1KAdded$2.33M
TRILLIUM ASSET MANAGEMENT, LLC16.2K$5.76M$541.9KAdded$112.3K
FRANKLIN RESOURCES INC17.4K$5.7M$303.3KCut−$57.3M
Motley Fool Asset Management LLC17.2K$5.65M$300.3KCut−$1.99M
BARCLAYS PLC16.9K$5.54M$294.8KCut−$2.88M
Police & Firemen's Retirement System of New Jersey16.3K$5.35M$281.4KAdded$336.9K
Skandinaviska Enskilda Banken AB (publ)16K$5.25MNew
Vanguard Global Advisers, LLC15.9K$5.22MHeld
MUTUAL OF AMERICA CAPITAL MANAGEMENT LLC15K$4.94M$262.5KCut−$130.8K
Centiva Capital, LP15K$4.93MNew
Russell Investments Group, Ltd.14.7K$4.84M$204.5KAdded$1.19M
Fortress Investment Group LLC14.7K$4.82MNew
CANADA PENSION PLAN INVESTMENT BOARD14.5K$4.76M$55.5KAdded$3.77M
Quantinno Capital Management LP13.6K$4.48M$223.3KAdded$502.8K
Laird Norton Wetherby Trust Company, LLC12.9K$4.25M$226KCut−$21.1M
ABC ARBITRAGE SA12.9K$4.23MNew
State of New Jersey Common Pension Fund D12.8K$4.2M$223.3KAdded$223.3K
Bellevue Group AG12.3K$4.03M$214.2KCut−$38.1M
YOUSIF CAPITAL MANAGEMENT, LLC11.9K$3.92M−$322.9KCut−$525.9K
OCCUDO QUANTITATIVE STRATEGIES LP11.6K$3.77MNew
Louisiana State Employees Retirement System11.4K$3.74M$188.6KAdded$385.6K
AGF MANAGEMENT LTD11.4K$3.74M$193.8KAdded$289K
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO11.1K$3.65M$193.9KAdded$123.3K
Sagefield Capital LP11.1K$3.63MNew
Quantbot Technologies LP10.8K$3.55M$960Added$3.54M
Zurcher Kantonalbank (Zurich Cantonalbank)10.3K$3.4M$134.9KAdded$993.6K
STRS OHIO10.3K$3.38M$179.9KCut−$438.8K
ARIZONA STATE RETIREMENT SYSTEM10.2K$3.36M$178.5KAdded$155.8K
Bridgewater10K$3.3M$20.8KAdded$2.93M
Linden Thomas Advisory Services, LLC9.98K$3.28M$174.2KCut−$306.7K
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS9.83K$3.23M$171.1KAdded$180.6K
FIFTH THIRD BANCORP9.47K$3.11M$5.34KAdded$3.01M
LPL Financial LLC9.43K$3.1M$164.7KCut−$472.3K
STATE OF MICHIGAN RETIREMENT SYSTEM9.41K$3.09M$160.9KAdded$226.6K
Vanguard Investments Australia, Ltd.9.35K$3.07MHeld
FRED ALGER MANAGEMENT, LLC9.09K$2.98M$158.7KCut−$428K
BANK OF MONTREAL /CAN/9.02K$2.96M$157.5KCut−$349.3K
Gotham Asset Management, LLC8.88K$2.91M$12.9KAdded$2.68M
NORTHWESTERN MUTUAL INVESTMENT MANAGEMENT COMPANY, LLC8.79K$2.89M$153KAdded$161.9K
Cerity Partners LLC8.74K$2.87M$124.7KAdded$649.1K
XPONANCE LLC8.61K$2.83M$130KAdded$512.5K
Oak Thistle LLC8.43K$2.77MNew
New Age Alpha Advisors, LLC8.21K$2.7M$143.4KAdded$93.6K
DIVERSIFY WEALTH MANAGEMENT, LLC8.28K$2.69M$114.8KAdded$1.24M
KLP KAPITALFORVALTNING AS8.18K$2.69M$142.8KAdded$118K
OSSIAM8.08K$2.65MNew
OREGON PUBLIC EMPLOYEES RETIREMENT FUND8.06K$2.65M$136.9KAdded$207.8K
RAYMOND JAMES FINANCIAL INC7.84K$2.57M$124.6KCut−$49.8M
LAZARD ASSET MANAGEMENT LLC7.83K$2.57M$118.4KAdded$463.8K
Jump Financial, LLC7.78K$2.55MNew
WEALTH ENHANCEMENT ADVISORY SERVICES, LLC7.47K$2.47M$49.9KAdded$1.29M
Vazirani Asset Management LLC7.5K$2.46MNew
DIVERSIFIED TRUST CO7.45K$2.45M$130KAdded$130K
INTECH INVESTMENT MANAGEMENT LLC7.24K$2.38M$126.4KCut−$1.27M
DLD Asset Management, LP7.23K$2.37MNew
Ameritas Investment Partners, Inc.7.23K$2.37M$125.3KAdded$141.7K
Polar Asset Management Partners Inc.7K$2.3MNew
US BANCORP \DE\6.81K$2.24M$118.9KCut−$1.33M
Brooklyn Investment Group6.8K$2.23M$79KAdded$386.4K
Universal- Beteiligungs- und Servicegesellschaft mbH6.74K$2.21M$117.6KCut−$242.4K
IEQ CAPITAL, LLC6.62K$2.17M$35.3KAdded$1.54M
Exome Asset Management LLC6.3K$2.07M$110KCut−$729.5K
Utah Retirement Systems6.13K$2.01M$106.3KAdded$119.8K
P SCHOENFELD ASSET MANAGEMENT LP6.13K$2.01MNew
Illinois Municipal Retirement Fund6.08K$2M$106.1KCut−$739.6K
Advisors Asset Management, Inc.6.05K$1.99M$79.2KAdded$577K
Pictet Asset Management Holding SA5.95K$1.95M$95.4KAdded$255K
Capricorn Fund Managers Ltd5.88K$1.93MNew
SBI Okasan Asset Management Co.Ltd.5.74K$1.88M$76.4KCut−$207K
GUGGENHEIM CAPITAL LLC5.58K$1.83M$61.2KAdded$740.9K
Beacon Pointe Advisors, LLC5.29K$1.74MNew
HIGHLAND CAPITAL MANAGEMENT, LLC5.26K$1.73MNew
SCHOLTZ & COMPANY, LLC5.18K$1.7M$90.4KCut−$781.4K
Blackstone Inc.5.12K$1.68MNew
ALLSTATE CORP5.05K$1.66MNew
TEACHER RETIREMENT SYSTEM OF TEXAS4.82K$1.58M$84.2KCut−$979.4K
Vanguard Personalized Indexing Management, LLC4.69K$1.54M$81.8KAdded$42K
Versor Investments LP4.54K$1.49MNew
AlTi Global, Inc.4.49K$1.47M$78.2KAdded$80.5K
Diametric Capital, LP4.47K$1.47MNew
OPPENHEIMER ASSET MANAGEMENT INC.4.4K$1.44M$76.8KCut−$541K
Odyssean, LLC4.4K$1.44M$41.9KAdded$698K
Olympiad Research LP4.39K$1.44MNew
CWM, LLC4.24K$1.39M$1.39MAdded$1.39M
HighTower Advisors, LLC4.09K$1.34M$61.4KAdded$250.5K
Creative Planning4.09K$1.34M$69.6KAdded$104.4K
DEUTSCHE BANK AG\3.79K$1.25M$66.2KCut−$1.03M
Connor, Clark & Lunn Investment Management Ltd.3.79K$1.24MNew
COMMERCE BANK3.79K$1.24M$66.1KCut−$1.79M
ARGONAUTICA PRIVATE WEALTH MANAGEMENT, INC3.72K$1.22M$64.9KAdded$23.8K
Summit Trail Advisors, LLC3.63K$1.19M$34.7KAdded$574.5K
Radnor Capital Management, LLC3.55K$1.17M$62KAdded$62K
Dorsey Wright & Associates3.52K$1.16MNew
MERCER GLOBAL ADVISORS INC /ADV3.22K$1.06M$50.1KAdded$165.4K
STIFEL FINANCIAL CORP3.18K$1.04M$55.5KAdded$7.91K
Crossmark Global Holdings, Inc.3.06K$1M$43.8KAdded$225.1K
QUADRANT CAPITAL GROUP LLC3.03K$996.3K$52KAdded$69.8K
Baker Avenue Asset Management, LP3.02K$990.4K$52.7KCut−$56.2K
Yorktown Management & Research Co Inc3K$985.1K$52.4KAdded$52.4K
SECURIAN ASSET MANAGEMENT, INC2.9K$952.6K$50.7KAdded$50.7K
Kintayl Capital LP2.84K$933.6KNew
EXCHANGE TRADED CONCEPTS, LLC2.83K$930.3K$49.5KCut−$1.43M
EQUITEC PROPRIETARY MARKETS, LLC2.8K$919.8KNew
FEDERATED HERMES, INC.2.74K$900.7K$47.8KAdded$49.1K
Rathbones Group PLC2.71K$889.9K$47.3KAdded$34.9K
Carlson Capital, L.P.2.6K$853.8KNew

Who left

Positions as of Q1 2026. 13F filings arrive up to 45 days after quarter-end and omit shorts. Values are quarter-end marks, as filed. Estimated mark is the price effect on shares still held — not realized P&L or investment advice.