§ HEALTH CARE
USD · Health CarePEN
PENUMBRA INC
USDSector · Health CareMarket cap · $13.0BBeta · 0.80
§ 01 · PRICE
Price action
1D5D1M6MYTD1YMAX
OPEN 319.20HIGH 319.20LOW 317.9552W 221.26 — 362.41
§ 03 · SIGNAL STACK · WHAT THE INPUTS SAY
13F FLOW
280 increased/new, 136 decreased/exited (13F)
AC 13F Analysis
§ 04 · FUNDAMENTALS · THE BOOKS
| P/E | 73.0 | P/B | 8.53 |
| EPS (TTM) | 4.52 |
§ 05 · WHO OWNS IT
Top institutional holders
| Fund | Shares | % port | Δ Q/Q |
|---|---|---|---|
| BlackRock, Inc. | 2.6M | 0.0% | +5% |
| VANGUARD CAPITAL MANAGEMENT LLC | 1.7M | 0.0% | n/a |
| VANGUARD CAPITAL MANAGEMENT LLC | 1.7M | 0.0% | n/a |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 1.7M | 0.0% | n/a |
| HBK INVESTMENTS L P | 1.6M | 5.4% | n/a |
| State Street | 1.2M | 0.0% | +2% |
◇ AC INTELLIGENCE
Top institutional owners for PEN as of the most recent 13F reporting period (Q1 2026 · Period ended Mar 31). Δ Q/Q reflects share-count change vs. the prior filing — positive green means adding, negative red means trimming. Cross-reference with the ownership-mix bars below to see which strategy cohort is driving the flow.
§ 06 · WHO OWNS IT · BY STRATEGY
OTHER6.9% · 0 holders
OTHER41.5% · 356 holders
PASSIVE / INDEX15.9% · 10 holders
DEALER / BANK13.6% · 39 holders
TACTICAL / MACRO8.0% · 7 holders
QUALITY / COMPOUNDER7.9% · 26 holders
GROWTH / MOMENTUM2.1% · 1 holder
SYSTEMATIC / QUANT1.8% · 10 holders
INCOME / DEFENSIVE1.7% · 31 holders
ACTIVIST0.5% · 1 holder
DEEP VALUE0.0% · 2 holders
◇ AC INTELLIGENCE
Ownership mix by behavioral cohort. Top bars indicate which style of capital dominates the float — passive indexing, quality compounders, dealer/bank, systematic quant, etc. Big quality-compounder share means concentrated active conviction; heavy passive share means flows are dictated by index rebalances, not fundamentals.
§ 07 · INSIDER ACTIVITY · LAST 180 DAYS
NO INSIDER FILINGS
◇ AC INTELLIGENCE
No Form 4 filings on record for PEN in the last 180 days.
§ 08 · COVERAGE · OUR RECENT NOTES
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