PENPenumbra, Inc.

$323.27

Who owns PEN

470 institutions reported holding PEN for 2026Q1, together 85% of the company, more than the 426 a quarter earlier.

470

Institutions reporting a position · as of 2026Q1 · up from 426 the quarter before

Shares held by institutions
33.7M

Shares held by institutions · 85% of the company · long US equity positions only, as reported on Form 13F

Reported value
$11.1B

Reported value · at 2026-03-31 prices, not today's

Top 5 holders
30%

Top 5 holders · of the whole company, between five filers

Details
Reporting quarter2026-03-31
2026Q1
Quarters on record
43
New positions
124
Positions exited
85
Added to
134
Reduced
132
Top 10 holdersof the company
40%
Institutional ownership by quarter, 2015Q3 to 2026Q1
QuarterFilersSharesReported value
2026Q147033.7M$11.1B
2025Q442636.7M$11.4B
2025Q341236.2M$9.17B
2025Q243935.6M$9.13B
2025Q141335.0M$9.36B
2024Q436734.9M$8.29B
2024Q333035.2M$6.84B
2024Q233735.5M$6.39B
2024Q133633.7M$7.52B
2023Q433434.4M$8.66B
2023Q330932.9M$7.97B
2023Q235934.1M$11.7B
2023Q130735.1M$9.71B
2022Q428634.4M$7.65B
2022Q326032.0M$6.06B
2022Q225131.4M$3.91B
Largest reported holders, 2026Q1
HolderShares% of companyValue
BlackRock Inc.4.3M11%$1.42B
VANGUARD GROUP INC3.7M9.3%$1.20B
HBK INVESTMENTS L P1.6M4.1%$537M
STATE STREET CORP1.2M3.0%$389M
MILLENNIUM MANAGEMENT LLC1.1M2.8%$361M
BAILLIE GIFFORD & CO0.8M2.1%$276M
GEODE CAPITAL MANAGEMENT LLC0.8M2.0%$261M
Balyasny Asset Management L.P.0.8M1.9%$250M
GOLDMAN SACHS GROUP INC0.7M1.8%$237M
CITIGROUP INC0.6M1.6%$204M

SEC Form 13F data sets (DERA bulk files). 13F is quarterly, filed up to 45 days late, and covers long US equity positions only, no shorts, no derivatives, nothing held below the reporting threshold.

reading the register…