Penumbra Inc (PEN) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

39,188,889Shares Outstanding

1,193,891Shares held by institutions

$407,152,648Value of institutional holdings

87.43%Institutional ownership %

2.76%Shares Changed QoQ

411No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

According to SEC filings for the period ending December 2025, Penumbra Inc (NYSE:PEN) is held by 411 institutional firms.

Penumbra saw its institutional ownership percentage fell to 87.4% in December 2025 from 92.8% in September 2025.
Institutional share ownership changed by 2.76% QoQ, while the number of institutional owners saw an increase of 12.60% YoY.
Among the 411 institutional holders of Penumbra, 192 added to their stakes while 165 trimmed their positions and 54 held steady.
The aggregate institutional position in Penumbra now stands at 34.26Mn shares as of December 2025, after investors increased their holdings (up by 920.15K shares quarter on quarter which is down 657.29K shares year over year).
The top institutional stake in Penumbra as of December 31, 2025 belongs to FMR LLC, which owns 5.13Mn shares, or 13.10% of the company.
Among the most significant buyers of Penumbra during December 2025 were MILLENNIUM MANAGEMENT LLC (476.03K), Artisan Partners Limited Partnership (370.64K), WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC (345.97K), SAMLYN CAPITAL, LLC (212.96K), Woodline Partners LP (202.98K).
Leading sellers of Penumbra stock in December 2025 included FMR LLC (759.72K), MORGAN STANLEY (167.95K), Qube Research & Technologies Ltd (160.00K), Champlain Investment Partners, LLC (116.10K), PERCEPTIVE ADVISORS LLC (110.02K).
The top 10 institutional holders of Penumbra for the quarter ending December 2025 included FMR LLC (5.13Mn), BlackRock, Inc. (4.14Mn), VANGUARD GROUP INC (3.77Mn), STATE STREET CORP (1.16Mn), CITADEL ADVISORS LLC (990.27K), BAILLIE GIFFORD & CO (876.33K), RTW INVESTMENTS, LP (866.50K), JPMORGAN CHASE & CO (797.49K), MILLENNIUM MANAGEMENT LLC (767.83K), GEODE CAPITAL MANAGEMENT, LLC (766.51K).

411 Institutional Holders

1,193,891 Total Shares Held

Rows:

Download Data

Owner Name	Date	Shares Held	Change (QoQ)	Change (%)	Value (USD)
FMR LLC	31 Dec, 2025	5,131,942	-759,723	-12.89%	$1,595,572,092.00
BlackRock, Inc.	31 Dec, 2025	4,140,589	-30,303	-0.73%	$1,287,350,472.00
VANGUARD GROUP INC	31 Dec, 2025	3,770,569	-64,914	-1.69%	$1,172,307,607.00
STATE STREET CORP	31 Dec, 2025	1,157,417	-7,533	-0.65%	$359,852,519.00
CITADEL ADVISORS LLC	31 Dec, 2025	990,275	19,277	1.99%	$307,886,400.00
BAILLIE GIFFORD & CO	31 Dec, 2025	876,325	-32,221	-3.55%	$272,458,205.00
RTW INVESTMENTS, LP	31 Dec, 2025	866,499	0	0.00%	$269,403,204.00
JPMORGAN CHASE & CO	31 Dec, 2025	797,490	-46,207	-5.48%	$247,947,693.00
MILLENNIUM MANAGEMENT LLC	31 Dec, 2025	767,832	476,026	163.13%	$238,726,647.00
GEODE CAPITAL MANAGEMENT, LLC	31 Dec, 2025	766,510	18,738	2.51%	$238,365,474.00
Clearbridge Investments, LLC	31 Dec, 2025	690,814	-66,694	-8.80%	$214,781,046.00
Champlain Investment Partners, LLC	31 Dec, 2025	601,804	-116,096	-16.17%	$187,106,882.00
Artisan Partners Limited Partnership	31 Dec, 2025	594,112	370,636	165.85%	$184,715,346.00
MORGAN STANLEY	31 Dec, 2025	525,507	-167,947	-24.22%	$163,386,028.00
JANUS HENDERSON GROUP PLC	31 Dec, 2025	475,898	7,050	1.50%	$147,961,978.00
Holocene Advisors, LP	31 Dec, 2025	471,348	161,129	51.94%	$146,546,807.00
Capital World Investors	31 Dec, 2025	426,456	10,724	2.58%	$132,589,435.00
CONGRESS ASSET MANAGEMENT CO	31 Dec, 2025	382,350	-46,822	-10.91%	$118,876,439.00
Allspring Global Investments Holdings, LLC	31 Dec, 2025	358,626	-6,471	-1.77%	$110,966,057.00
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC	31 Dec, 2025	345,974	345,974	0.00%	$107,566,776.00

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