PEN
PENUMBRA INCData as of 2026 Q1 (03-31) · 13F snapshot
Summary
PENUMBRA INC (PEN) is held by 8 tracked hedge-fund managers, a combined reported value of ~$562.33M; the largest are Izzy Englander, George Soros, Ken Griffin. This quarter: 2 new, 3 added, 1 trimmed, 1 closed. 1 members of Congress have disclosed STOCK Act trades. Data as of 2026 Q1, from public SEC 13F filings, delayed up to ~45 days.
Attention · HighThis quarter · Heating up
Gurus holding8
Congress trades1
Price$318.32vs quarter-end-3.06%
Sectors0
This quarter's moves
Top holderIzzy EnglanderNew2
Added3
Trimmed / sold2
George SorosNew large stake
Value $66.80M1.2% of portfolio203,4342026 Q1
Value $15.76M— of portfolio48,0002026 Q1
Value $9.72M— of portfolio29,6002026 Q1
Value $6.70M— of portfolio20,4002026 Q1
Value $2.15M— of portfolio8,5002025 Q3
Value $1.08M— of portfolio4,2002025 Q2
Value $680.1K— of portfolio3,5002024 Q3
| Investor | Value | % of portfolio | Action |
|---|---|---|---|
| George Soros | $66.80M | 1.2% | New large stake |
| Izzy EnglanderCALL | $15.76M | — | — |
| Ken GriffinPUT | $9.72M | — | — |
| Ken GriffinCALL | $6.70M | — | — |
| Steven CohenPUT | $2.15M | — | — |
| Steven CohenCALL | $1.08M | — | — |
| Izzy EnglanderPUT | $680.1K | — | — |
Data from public SEC 13F & STOCK Act filings, delayed up to ~45 days, partial holdings only — for research, not investment advice.