Penumbra

PEN • NYSE

Penumbra is a medical - devices company in the healthcare sector on NYSE, led by Adam Elsesser, with a market cap of $11.5B. As of Q3 2025, 93% of shares are held by 409 institutional investors, with FMR LLC as the largest holder at 15.11%.

Chairman and Chief Executive OfficerAdam Elsesser

Market Cap$11.5B

Medical - Devices

Healthcare

Employees4.2K

Websitepenumbrainc.com

Country

United States of America

Overview

Overview of institutional ownership in PEN as of Q3 2025 with a market cap of $9.9B

All Institutions

Institutions: 409
Value Held: $9.2B
Shares Held: 36.2M
Avg Position: $22.4M
Median Position: $1.0M

Hedge Funds

Hedge Funds: 41
Value Held: $1.0B
Shares Held: 4.0M
Avg Position: $24.9M
Median Position: $3.8M

Ownership Breakdown

Institutional (non-HF)

82.48%

$8.1B

Hedge Funds

10.35%

$1.0B

Retail & Other

7.17%

$708.3M

Based on market cap of $9.9B as of Q3 2025. Institutional (non-HF) excludes hedge funds to avoid double counting.

Biggest Investors

Institutions with the largest positions in PEN as of Q3 2025

Institution	Key People	Position Value	Ownership	Owned Since	Total AUM (Long)
FMR LLC Institution	-	$1.5B 0.08% of portfolio	15.11% 5.9M shares	Q3 2015 Held for 10y 2m	$1.92T
B BlackRock, Inc. Institution	-	$1.1B 0.02% of portfolio	10.69% 4.2M shares	Q4 2015 Held for 9y 11m	$5.67T
VANGUARD GROUP INC Institution	Salim Ramji CEO	$971.6M 0.01% of portfolio	9.83% 3.8M shares	Q3 2015 Held for 10y 2m	$6.69T
PRICE T ROWE ASSOCIATES INC /MD/ Long Only Manager	Robert W Sharps President	$454.5M 0.05% of portfolio	4.60% 1.8M shares	Q3 2016 Held for 9y 2m	$912.31B
STATE STREET CORP Institution	Ronald P. O'Hanley CEO	$295.1M 0.01% of portfolio	2.99% 1.2M shares	Q4 2015 Held for 9y 11m	$2.88T
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	Kenneth Cordele Griffin CEO	$246.0M 0.20% of portfolio	2.49% 971.0K shares	Q3 2015 Held for 10y 2m	$122.08B
B BAILLIE GIFFORD & CO Institution	-	$230.2M 0.17% of portfolio	2.33% 908.5K shares	Q3 2017 Held for 8y 2m	$134.80B
RTW INVESTMENTS, LLC Hedge Fund•Sector	Peter M Fong President	$219.5M 2.72% of portfolio	2.22% 866.5K shares	Q3 2021 Held for 4y 2m	$8.1B
JPMORGAN CHASE & CO Institution	Jamie Dimon CEO	$213.7M 0.01% of portfolio	2.16% 843.7K shares	Q3 2015 Held for 10y 2m	$1.56T
Clearbridge Investments, LLC Long Only Manager	John Randolph Haller COO	$191.9M 0.14% of portfolio	1.94% 757.5K shares	Q3 2015 Held for 10y 2m	$132.87B

Net Capital Flow

Institutional buying and selling activity for PEN in Q3 2025

Net Flow: +$206.5M
Buyers: 146
Sellers: 250
Total Bought: +$856.4M
Total Sold: −$649.9M
Avg Position: $20.2M

Biggest Buyers

Institution	Net Bought	Current Position
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	+$190.5M +752.0K shares	$246.0M 971.0K shares
PRICE T ROWE ASSOCIATES INC /MD/ Long Only Manager	+$106.5M +420.3K shares	$454.5M 1.8M shares
Holocene Advisors, LP Hedge Fund•Long/Short	+$78.6M +310.2K shares	$78.6M 310.2K shares
MORGAN STANLEY RIA/Wealth	+$49.4M +194.9K shares	$175.7M 693.5K shares
PERCEPTIVE ADVISORS LLC Hedge Fund•Long/Short	+$47.6M +187.8K shares	$55.9M 220.5K shares
BALYASNY ASSET MANAGEMENT LLC Hedge Fund•Multi-Strategy	+$43.5M +171.6K shares	$43.5M 171.6K shares
MILLENNIUM MANAGEMENT LLC Hedge Fund•Multi-Strategy	+$41.8M +165.1K shares	$59.1M 233.3K shares
UBS Group AG Institution	+$25.5M +100.5K shares	$48.3M 190.6K shares
JPMORGAN CHASE & CO Institution	+$23.5M +92.8K shares	$213.7M 843.7K shares
DIMENSIONAL FUND ADVISORS LP Long Only Manager	+$21.9M +86.3K shares	$75.1M 296.6K shares

Biggest Sellers

Institution	Net Sold	Current Position
Point72 Asset Management, L.P. Hedge Fund•Multi-Strategy	−$35.9M −140.0K shares	Sold Off 0 shares
C Capital World Investors Institution	−$32.8M −129.5K shares	$105.3M 415.7K shares
A AXA Institution	−$27.2M −105.9K shares	Sold Off 0 shares
Polar Securities Inc. Hedge Fund•Multi-Strategy	−$26.0M −101.2K shares	Sold Off 0 shares
AQR CAPITAL MANAGEMENT LLC Hedge Fund•Multi-Strategy	−$24.5M −96.5K shares	$59.4M 234.5K shares
S STEADFAST CAPITAL MANAGEMENT LP Hedge Fund•Long/Short	−$24.4M −95.0K shares	Sold Off 0 shares
M Man Group plc Institution	−$22.6M −89.1K shares	$29.7M 117.4K shares
UBS GLOBAL ASSET MANAGEMENT AMERICAS INC Long Only Manager	−$20.7M −81.7K shares	$23.3M 92.2K shares
N Nuveen, LLC Institution	−$18.7M −73.9K shares	$21.8M 86.0K shares
DRIEHAUS CAPITAL MANAGEMENT LLC Hedge Fund•Event Driven	−$18.4M −72.8K shares	$11.6M 45.8K shares

Entry and Exit Activity

Institutions that initiated new positions or completely exited PEN in Q3 2025

New Positions: 19
New Value: $9.5M
Exited Positions: 81
Exited Value: $227.9M

New Positions

Institution	Position Value
A AGF MANAGEMENT LTD Institution	$3.1M 12.4K shares
D Delta Global Management LP Hedge Fund•Market Neutral	$2.0M 7.9K shares
W WESBANCO BANK INC Institution	$1.9M 7.5K shares
UNITED CAPITAL FINANCIAL ADVISERS, LLC RIA/Wealth	$838.7K 3.3K shares
A ALPS ADVISORS INC ETF Provider	$423.0K 1.7K shares
L Lombard Odier Asset Management Corp Hedge Fund•Multi-Strategy	$360.2K 1.4K shares
GREAT LAKES ADVISORS, LLC Long Only Manager	$349.8K 1.4K shares
Malaga Cove Capital, LLC RIA/Wealth	$326.3K 1.3K shares
Cornerstone Planning Group LLC RIA/Wealth	$133.4K 904.0 shares
Sontag Advisory, LLC RIA/Wealth	$27.4K 108.0 shares

Exited Positions

Institution	Previous Position
Point72 Asset Management, L.P. Hedge Fund•Multi-Strategy	$35.9M 140.0K shares
A AXA Institution	$27.2M 105.9K shares
Polar Securities Inc. Hedge Fund•Multi-Strategy	$26.0M 101.2K shares
S STEADFAST CAPITAL MANAGEMENT LP Hedge Fund•Long/Short	$24.4M 95.0K shares
TUDOR INVESTMENT CORP ET AL Hedge Fund•Multi-Strategy	$14.9M 58.2K shares
J Jump Financial, LLC Institution	$9.2M 35.7K shares
Engineers Gate Manager LP Hedge Fund•Quant	$8.2M 32.0K shares
C Cubist Systematic Strategies, LLC Institution	$8.1M 31.6K shares
T TEXAS PERMANENT SCHOOL FUND Institution	$6.6M 25.6K shares
Janney Montgomery Scott LLC RIA/Wealth	$6.4M 24.7K shares

Options Activity

Institutions with the largest Call and Put options positions in PEN as of Q3 2025

Call Positions: 16
Call Value: $76.6M
Put Positions: 9
Put Value: $23.5M

Call Positions

Institution	Position Value
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	$16.2M 639.0 contracts
MILLENNIUM MANAGEMENT LLC Hedge Fund•Multi-Strategy	$14.8M 585.0 contracts
N NOMURA HOLDINGS INC Institution	$8.9M 350.0 contracts
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	$8.2M 324.0 contracts
W WOLVERINE TRADING, LLC Institution	$8.2M 325.0 contracts
J JANE STREET GROUP, LLC Institution	$5.3M 208.0 contracts
S SIG BROKERAGE, LP Institution	$5.0M 197.0 contracts
BANK OF MONTREAL /CAN/ Institution	$4.2M 164.0 contracts
D D. E. Shaw & Co., Inc. Institution	$2.9M 114.0 contracts
GOLDMAN SACHS GROUP INC Institution	$2.7M 105.0 contracts

Put Positions

Institution	Position Value
J JANE STREET GROUP, LLC Institution	$10.0M 394.0 contracts
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	$8.0M 317.0 contracts
Point72 Asset Management, L.P. Hedge Fund•Multi-Strategy	$2.2M 85.0 contracts
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	$1.8M 71.0 contracts
W WOLVERINE TRADING, LLC Institution	$1.2M 48.0 contracts
Walleye Trading Advisors, LLC Hedge Fund•Multi-Strategy	$177.3K 7.0 contracts
Walleye Trading LLC RIA/Wealth	$152.0K 6.0 contracts
T Twin Tree Management, LP Hedge Fund•Vol Arbitrage	- - contracts
A Arrowpoint Investment Partners Pte. Ltd. Institution	- - contracts

Most Committed Institutions

Institutions with PEN as the highest % of their portfolio as of Q3 2025

Institution	Key People	Portfolio Weight	Ownership	Owned Since	Total AUM (Long)
Partner Fund Management, L.P. Hedge Fund•Sector	Jonathan Jude Aljoe CFO	4.27% $49.4M	0.50% 195.1K shares	Q3 2015 Held for 10y 2m	$1.2B
RTW INVESTMENTS, LLC Hedge Fund•Sector	Peter M Fong President	2.72% $219.5M	2.22% 866.5K shares	Q3 2021 Held for 4y 2m	$8.1B
OAK HARBOR WEALTH PARTNERS, LLC RIA/Wealth	Paul Boddie Elam CCO	2.05% $8.3M	0.08% 32.8K shares	Q1 2022 Held for 3y 8m	$404.8M
CARRET ASSET MANAGEMENT, LLC RIA/Wealth	Marco Antonio Vega President	1.93% $19.5M	0.20% 77.0K shares	Q2 2016 Held for 9y 5m	$1.0B
Rock Springs Capital Management LP Hedge Fund•Sector	Nnamdi C Etoh CFO	1.79% $30.5M	0.31% 120.5K shares	Q3 2015 Held for 10y 2m	$1.7B
PERCEPTIVE ADVISORS LLC Hedge Fund•Long/Short	Joseph Eric Edelman CEO	1.62% $55.9M	0.57% 220.5K shares	Q4 2024 Held for 11 months	$3.5B
Exome Asset Management LLC Hedge Fund•Sector	Alex R Forschner President	1.54% $2.3M	0.02% 9.0K shares	Q4 2024 Held for 11 months	$148.0M
B BRAIDWELL LP Hedge Fund•Multi-Strategy	Brian James Kreiter CEO	1.45% $35.9M	0.36% 141.5K shares	Q4 2022 Held for 2y 11m	$2.5B
C Champlain Investment Partners, LLC Long Only Manager	Judith Wilkinson O'Connell CEO	1.37% $181.9M	1.84% 717.9K shares	Q4 2016 Held for 8y 11m	$13.3B
NEXT CENTURY GROWTH INVESTORS LLC Long Only Manager	Thomas Leigh Press CEO	0.97% $13.2M	0.13% 51.9K shares	Q1 2025 Held for 8 months	$1.4B

Hedge Fund Spotlight

Discover hedge funds investing in PEN

Bayesian Capital Management, LP

Hedge Fund • Quant

Portfolio ManagerVelin Krassimirov Tzanov

Portfolio Value: $489.3M
Positions: 501
Last Reported: Q3 2025

Sector Allocation

Position in Penumbra

Market Value: $988.7K
Shares Held: 3.9K
Portfolio Weight: 0.20%
Owned Since: 2025-Q1

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