Penumbra Ownership | Who Owns Penumbra?

Overview Forecast RevenueFinancials Chart Transcripts

Penumbra Ownership Summary

Penumbra is owned by 64.96% institutional investors, 3.71% insiders, and 31.33% retail investors. Fmr is the largest institutional shareholder, holding 15.17% of PEN shares. iShares Core S&P Mid-Cap ETF is the top mutual fund, with 3.23% of its assets in Penumbra shares.

PEN Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	Penumbra	64.96%	3.71%	31.33%
Sector	Healthcare Stocks	42.54%	10.83%	46.63%
Industry	Medical Device Stocks	37.80%	10.13%	52.07%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Fmr	5.89M	15.17%	$1.49B
Blackrock	4.26M	10.99%	$765.80M
Blackrock funding, inc. /de	4.17M	10.74%	$1.06B
Vanguard group	3.84M	9.88%	$971.60M
Price t rowe associates inc /md/	1.79M	4.62%	$454.52M
State street	1.16M	3.00%	$295.11M
Baillie gifford	908.55K	2.34%	$230.15B
Rtw investments, lp	866.50K	2.23%	$219.50M
Jpmorgan chase	843.70K	2.17%	$213.73M
Clearbridge investments	757.51K	1.95%	$191.89M

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Pfm health sciences, lp	195.09K	3.80%	$49.42M
Rtw investments, lp	866.50K	2.70%	$219.50M
Oak harbor wealth partners	32.81K	2.05%	$8.31M
Carret asset management	77.00K	1.90%	$19.51M
Rock springs capital management lp	120.50K	1.78%	$30.53M
Perceptive advisors	220.55K	1.61%	$55.87M
Exome asset management	9.00K	1.38%	$2.28M
Champlain investment partners	717.90K	1.37%	$181.86M
Braidwell lp	141.53K	1.06%	$35.85M
Next century growth investors	51.93K	0.96%	$13.15M

Top Buyers

Holder	Shares	% Assets	Change
Price t rowe associates inc /md/	1.79M	0.05%	420.27K
Holocene advisors, lp	310.22K	0.18%	310.22K
Norges bank	229.05K	0.01%	229.05K
Morgan stanley	693.45K	0.01%	194.89K
Blackrock	4.26M	0.02%	193.91K

Top Sellers

Holder	Shares	% Assets	Change
Capital research global investors	-	-	-1.13M
William blair investment management	-	-	-883.10K
Eagle asset management	-	-	-327.93K
Woodline partners lp	-	-	-145.88K
Point72 asset management	-	-	-140.04K

New Positions

Holder	Shares	% Assets	Change	Value
Norges bank	229.05K	0.01%	229.05K	$54.40M
Axa investment managers	87.01K	0.06%	87.01K	$22.04M
Churchill management	14.54K	0.04%	14.54K	$3.73M
Susquehanna portfolio strategies	14.35K	0.06%	14.35K	$3.64M
Hussman strategic advisors	12.60K	0.69%	12.60K	$3.19M

Sold Out

Holder	Change
Innealta capital	-1.00
Sjs investment consulting	-1.00
Stephens consulting	-1.00
Dinuzzo private wealth	-1.00
Newsquare capital	-1.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Sep 30, 2025	282	-39.74%	25,226,276	-29.55%	64	0.76%	117	-53.94%	120	-15.49%
Jun 30, 2025	466	5.67%	35,458,549	3.11%	91	1.15%	251	5.02%	143	10.85%
Mar 31, 2025	440	15.49%	34,552,725	-1.08%	89	1.09%	237	24.74%	130	-2.99%
Dec 31, 2024	188	-46.29%	15,184,979	-56.57%	39	0.48%	87	-42.00%	67	-53.15%
Sep 30, 2024	346	-3.89%	34,876,344	-1.99%	90	1.07%	147	-25.76%	142	33.96%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
iShares Core S&P Mid-Cap ETF	1.26M	3.23%	-
Vanguard US Total Market Shares ETF	1.16M	3.02%	924.00
Vanguard Total Stock Mkt Idx Inv	1.16M	2.96%	-24.39K
Fidelity Select Health Care	1.12M	2.87%	40.00K
Fidelity Select Medical Tech and Devcs	925.00K	2.37%	78.00K
Vanguard Small Cap Index	893.06K	2.29%	-5.87K
US Small-Cap Growth II Equity Comp	807.21K	2.08%	-1.98K
Fidelity Advisor Health Care I	628.00K	1.61%	20.00K
Strategic Advisers Fidelity US TtlStk	627.50K	1.61%	23.00K
T. Rowe Price Health Sciences	616.65K	1.58%	-22.49K

Recent Insider Transactions

Date	Name	Role	Activity	Value
Dec 05, 2025	Roberts Johanna	EVP, Gen. Counsel & Secretary	Sell	$90.04K
Dec 01, 2025	Roberts Johanna	EVP, Gen. Counsel & Secretary	Sell	$11.44K
Dec 01, 2025	Roberts Johanna	EVP, Gen. Counsel & Secretary	Sell	$27.46K
Dec 01, 2025	Roberts Johanna	EVP, Gen. Counsel & Secretary	Sell	$45.65K
Dec 01, 2025	Roberts Johanna	EVP, Gen. Counsel & Secretary	Sell	$42.53K

Insider Transactions Trends

Date	Buy	Sell
2025 Q4	-	35
2025 Q3	-	48
2025 Q2	-	104
2025 Q1	-	59
2024 Q4	-	36

PEN Ownership FAQ

Who Owns Penumbra?

Penumbra shareholders are primarily institutional investors at 64.96%, followed by 3.71% insiders and 31.33% retail investors. The average institutional ownership in Penumbra's industry, Medical Device Stocks, is 37.80%, which Penumbra exceeds.

Who owns the most shares of Penumbra?

Penumbra’s largest shareholders are Fmr (5.89M shares, 15.17%), Blackrock (4.26M shares, 10.99%), and Blackrock funding, inc. /de (4.17M shares, 10.74%). Together, they hold 36.90% of Penumbra’s total shares outstanding.

Does Blackrock own Penumbra?

Yes, BlackRock owns 10.99% of Penumbra, totaling 4.26M shares as of Jun 2024. This represents 0.02% of BlackRock's total assets, with a market value of 765.8M$. In the last quarter, BlackRock increased its holdings by 193.91K shares, a 4.77% change.

Who is Penumbra’s biggest shareholder by percentage of total assets invested?

Pfm health sciences, lp is Penumbra’s biggest shareholder by percentage of total assets invested, with 3.80% of its assets in 195.08K Penumbra shares, valued at 49.42M$.

Who is the top mutual fund holder of Penumbra shares?

iShares Core S&P Mid-Cap ETF is the top mutual fund holder of Penumbra shares, with 3.23% of its total shares outstanding invested in 1.26M Penumbra shares.

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