Penumbra Ownership | Who Owns Penumbra?

Overview Forecast RevenueFinancials Chart Transcripts

Penumbra Ownership Summary

Penumbra is owned by 50.62% institutional investors, 3.72% insiders, and 45.66% 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 3.37% of its assets in Penumbra shares.

PEN Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	Penumbra	50.62%	3.72%	45.66%
Sector	Healthcare Stocks	232.86%	10.65%	-143.51%
Industry	Medical Device Stocks	37.83%	10.48%	51.69%

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	4.14M	10.60%	$1.29B
Vanguard group	3.77M	9.65%	$1.17B
Price t rowe associates inc /md/	1.79M	4.62%	$454.52M
State street	1.16M	3.00%	$295.11M
Rtw investments, lp	866.50K	2.23%	$219.50M
Baillie gifford	840.43K	2.16%	$275.97M
Jpmorgan chase	797.49K	2.04%	$247.95M
Geode capital management	766.51K	1.96%	$238.37M

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Cibra capital	31.60K	5.01%	$10.38M
Pfm health sciences, lp	195.09K	3.80%	$49.42M
Rtw investments, lp	866.50K	2.70%	$219.50M
Alpine associates management	131.95K	2.55%	$43.33M
Oak harbor wealth partners	30.31K	2.33%	$9.95M
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
Gardner lewis asset management l p	22.00K	1.56%	$7.22M
Exome asset management	9.00K	1.38%	$2.28M

Top Buyers

Holder	Shares	% Assets	Change
Price t rowe associates inc /md/	1.79M	0.05%	420.27K
Ubs group	560.34K	0.03%	409.96K
Holocene advisors, lp	310.22K	0.18%	310.22K
Vanguard fiduciary trust	247.24K	0.02%	247.24K
Blackrock	4.26M	0.02%	193.91K

Top Sellers

Holder	Shares	% Assets	Change
Capital research global investors	-	-	-1.13M
William blair investment management	-	-	-345.97K
Eagle asset management	-	-	-327.93K
Allspring global investments	79.90K	0.04%	-278.73K
Morgan stanley	525.51K	0.01%	-167.95K

New Positions

Holder	Shares	% Assets	Change	Value
Vanguard fiduciary trust	247.24K	0.02%	247.24K	$81.18M
Alpine associates management	131.95K	2.55%	131.95K	$43.33M
Norges bank	106.27K	0.00%	106.27K	$33.04M
Axa investment managers	87.01K	0.06%	87.01K	$22.04M
Alberta investment management	80.00K	0.16%	80.00K	$26.27M

Sold Out

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

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Dec 31, 2025	298	-31.81%	19,780,062	-45.53%	50	0.58%	131	-31.05%	120	-31.82%
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%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
iShares Core S&P Mid-Cap ETF	1.33M	3.37%	1.98K
Vanguard US Total Market Shares ETF	1.16M	3.02%	924.00
Vanguard Total Stock Mkt Idx Inv	1.18M	3.02%	7.96K
Vanguard Small Cap Index	860.72K	2.19%	15.82K
BlackRock Event Driven Equity Instl	769.79K	1.96%	170.95K
Franklin US Small-Mid Cap Growth Equity	540.46K	1.40%	295.20K
T. Rowe Price Health Sciences	536.11K	1.37%	-1.01K
Vanguard US Growth Investor	502.94K	1.28%	-
Baillie Gifford US Equity Growth	502.94K	1.28%	-
Vanguard Small Cap Growth Index Inv	481.81K	1.23%	12.70K

Recent Insider Transactions

Date	Name	Role	Activity	Value
Apr 02, 2026	Grewal Harpreet	-	Sell	$32.82K
Mar 02, 2026	Yuen Maggie	Chief Financial Officer	Sell	$832.47K
Jan 06, 2026	Grewal Harpreet	-	Sell	$58.15K
Jan 02, 2026	Wilder Thomas	-	Sell	$57.79K
Dec 11, 2025	Bose Arani	-	Sell	$159.69K

Insider Transactions Trends

Date	Buy	Sell
2026 Q1	-	3
2025 Q4	-	43
2025 Q3	-	48
2025 Q2	-	104
2025 Q1	-	59

PEN Ownership FAQ

Who Owns Penumbra?

Penumbra shareholders are primarily institutional investors at 50.62%, followed by 3.72% insiders and 45.66% retail investors. The average institutional ownership in Penumbra's industry, Medical Device Stocks, is 37.83%, 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 (4.14M shares, 10.60%). Together, they hold 36.76% 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?

Cibra capital is Penumbra’s biggest shareholder by percentage of total assets invested, with 5.01% of its assets in 31.6K Penumbra shares, valued at 10.38M$.

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 3.37% of its total shares outstanding invested in 1.33M Penumbra shares.

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