Penumbra Ownership | Who Owns Penumbra?

Overview Forecast RevenueFinancials Chart Transcripts

Penumbra Ownership Summary

Penumbra is owned by 87.67% institutional investors, 2.89% insiders, and 9.44% retail investors. Blackrock is the largest institutional shareholder, holding 10.99% of PEN shares. iShares Core S&P Mid-Cap ETF is the top mutual fund, with 3.43% of its assets in Penumbra shares.

PEN Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	Penumbra	87.67%	2.89%	9.44%
Sector	Healthcare Stocks	245.07%	12.10%	-157.17%
Industry	Medical Device Stocks	52.73%	12.62%	34.65%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Blackrock	4.26M	10.99%	$765.80M
Blackrock funding, inc. /de	4.30M	10.94%	$1.36B
Vanguard group	3.77M	9.65%	$1.17B
Hbk investments l p	1.84M	4.68%	$580.51M
Vanguard capital management	1.71M	4.35%	$539.89M
State street	1.24M	3.17%	$392.56M
Exoduspoint capital management, lp	1.09M	2.78%	$344.30M
Balyasny asset management	1.09M	2.78%	$344.22M
Jpmorgan chase	1.07M	2.73%	$338.56M
Goldman sachs group	847.10K	2.16%	$267.47M

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Slotnik capital	133.00K	10.85%	$41.99M
Birnam oak advisors, lp	171.28K	8.78%	$54.08M
Decagon asset management llp	142.00K	8.54%	$44.84M
Harvest management	57.49K	7.13%	$18.15M
Hbk investments l p	1.84M	5.67%	$580.51M
Melqart asset management (uk)	185.73K	5.58%	$58.65M
Cibra capital	31.60K	5.01%	$10.38M
Psquared asset management	42.78K	4.89%	$14.05M
Water island capital	150.46K	4.42%	$47.51M
Versor investments lp	6.49K	4.31%	$2.05M

Top Buyers

Holder	Shares	% Assets	Change
Norges bank	752.24K	0.02%	752.24K
Jpmorgan chase	1.07M	0.02%	668.84K
Exoduspoint capital management, lp	1.09M	2.22%	625.22K
Arrowstreet capital, limited partnership	834.90K	0.12%	434.74K
Two sigma investments, lp	428.13K	0.10%	369.91K

Top Sellers

Holder	Shares	% Assets	Change
Capital research global investors	-	-	-1.13M
Rtw investments, lp	-	-	-866.50K
Baillie gifford	-	-	-840.43K
Artisan partners limited partnership	-	-	-594.11K
Millennium management	700.61K	0.08%	-397.52K

New Positions

Holder	Shares	% Assets	Change	Value
Norges bank	752.24K	0.02%	752.24K	$237.52M
Sixth street partners management company	343.71K	0.01%	343.71K	$108.53M
Westfield capital management co lp	131.39K	0.14%	131.39K	$41.49M
Axa investment managers	87.01K	0.06%	87.01K	$22.04M
Psquared asset management	42.78K	4.89%	42.78K	$14.05M

Sold Out

Holder	Change
Dinuzzo private wealth	-1.00
Sjs investment consulting	-1.00
Stephens consulting	-1.00
Tfc financial management	-1.00
Operose advisors	-1.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Jun 30, 2026	467	-6.04%	34,432,534	1.74%	87	1.16%	193	-31.32%	181	29.29%
Mar 31, 2026	488	9.42%	33,191,414	-9.80%	85	0.96%	277	37.13%	138	-22.91%
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%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
iShares Core S&P Mid-Cap ETF	1.35M	3.43%	42.00
Vanguard US Total Market Shares ETF	1.16M	3.02%	924.00
Vanguard MStar Total Stk Mkt Idx Invest	1.19M	3.02%	2.89K
Vanguard Total Stock Mkt Idx Inv	1.19M	3.02%	317.00
Vanguard Morn Total Stk Mkt Idx Investor	1.19M	3.02%	317.00
Vanguard Small Cap Index	858.83K	2.18%	2.03K
BlackRock Event Driven Equity Instl	769.79K	1.95%	-
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%	-

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 Q3	-	-
2026 Q2	-	1
2026 Q1	-	3
2025 Q4	-	43
2025 Q3	-	48

PEN Ownership FAQ

Who Owns Penumbra?

Penumbra shareholders are primarily institutional investors at 87.67%, followed by 2.89% insiders and 9.44% retail investors. The average institutional ownership in Penumbra's industry, Medical Device Stocks, is 52.73%, which Penumbra exceeds.

Who owns the most shares of Penumbra?

Penumbra’s largest shareholders are Blackrock (4.26M shares, 10.99%), Blackrock funding, inc. /de (4.3M shares, 10.94%), and Vanguard group (3.77M shares, 9.65%). Together, they hold 31.58% 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?

Slotnik capital is Penumbra’s biggest shareholder by percentage of total assets invested, with 10.85% of its assets in 133K Penumbra shares, valued at 41.99M$.

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 3.43% of its total shares outstanding invested in 1.35M Penumbra shares.

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