Penumbra Inc (PEN) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

0Shares Outstanding

416,237Shares held by institutions

$136,629,795Value of institutional holdings

89.84%Institutional ownership %

2.81%Shares Changed QoQ

449No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

Penumbra Inc (NYSE:PEN) has 423 institutional investors with active 13F positions as of December 2025.

These investors collectively held 89.2% of Penumbra's outstanding shares in December 2025, down from 95.0% in September 2025.
Their total shares held in PEN decreased -0.02% quarter over quarter, and separately, investors owning Penumbra increased 15.57% from a year ago.
Of these 423 holders, 200 added to their stakes in Penumbra, 171 trimmed positions, and 52 made no changes.
In total, institutional investors held 35.06Mn shares in Penumbra as of December 2025, down by 6.06K shares quarter on quarter, and down 753.79K shares year over year.
As of December 31, 2025, FMR LLC held the largest stake in Penumbra with 5.13Mn shares, accounting for 13.06% of total shares outstanding.
The biggest buyers of Penumbra for the quarter ending December 2025 included MILLENNIUM MANAGEMENT LLC (444.53K), Artisan Partners Limited Partnership (370.64K), WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC (345.97K), SAMLYN CAPITAL, LLC (212.96K), Woodline Partners LP (202.98K).
The biggest sellers of Penumbra for the quarter ending December 2025 included Jpmorgan Chase & Co (889.9K), FMR LLC (759.72K), Bank Of America Corp /De/ (213.13K), Morgan Stanley (167.95K), Qube Research & Technologies Ltd (160.0K).
Per Business Quant data, the top 10 holders of Penumbra for the quarter ending December 2025 are FMR LLC (5.13Mn), BlackRock, Inc. (4.14Mn), VANGUARD GROUP INC (3.77Mn), State Street Corp (1.16Mn), CITADEL ADVISORS LLC (990.28K), BAILLIE GIFFORD & CO (876.32K), RTW INVESTMENTS, LP (866.5K), Jpmorgan Chase & Co (797.49K), GEODE CAPITAL MANAGEMENT, LLC (766.51K), Clearbridge Investments, LLC (690.81K).

423 Institutional Holders

416,237 Total Shares Held

Rows:

Download Data

Owner Name	Date	Change (QoQ)	Change (%)	Value (USD)
BlackRock, Inc.	31 Dec, 2025	-30,303	-0.73%	$0.00
FMR LLC	31 Dec, 2025	-759,723	-12.89%	$0.00
Holocene Advisors, LP	31 Dec, 2025	161,129	51.94%	$0.00
Barclays Plc	31 Dec, 2025	-27,397	-50.27%	$0.00
VANGUARD GROUP INC	31 Dec, 2025	-64,914	-1.69%	$0.00
Allspring Global Investments Holdings, LLC	31 Dec, 2025	-6,471	-1.77%	$0.00
HSBC HOLDINGS PLC	31 Dec, 2025	1,562	104.69%	$0.00
State Street Corp	31 Dec, 2025	-7,533	-0.65%	$0.00
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC	31 Dec, 2025	345,974	0.00%	$0.00
Rockefeller Capital Management L.P.	31 Dec, 2025	1,216	136.94%	$0.00
CITADEL ADVISORS LLC	31 Dec, 2025	19,277	1.99%	$0.00
Woodline Partners LP	31 Dec, 2025	202,982	0.00%	$0.00
BAILLIE GIFFORD & CO	31 Dec, 2025	-32,221	-3.55%	$0.00
Jain Global LLC	31 Dec, 2025	150,477	462.34%	$0.00
RTW INVESTMENTS, LP	31 Dec, 2025	0	0.00%	$0.00
UBS Group AG	31 Dec, 2025	-40,195	-21.09%	$0.00
Jpmorgan Chase & Co	31 Dec, 2025	-889,904	-52.74%	$0.00
Baird Financial Group, Inc.	31 Dec, 2025	-30,894	-17.50%	$0.00
GEODE CAPITAL MANAGEMENT, LLC	31 Dec, 2025	18,738	2.51%	$0.00
Bellevue Group AG	31 Dec, 2025	-11,500	-7.83%	$0.00

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