Penumbra, Inc. (PEN) ownership: Top institutional holder: Decagon Asset Management LLP ($55.03B). Insider activity: Net Seller (8 buys, 12 sells). 1 recent congressional STOCK Act disclosures. SEC EDGAR first-party data.
| Holder | Shares | Market Value | Reported |
|---|---|---|---|
| Decagon Asset Management LLP | 167588.00 | $55.03B | 2026-03-31 |
| BlackRock, Inc. | 4330456.00 | $1.42B | 2026-03-31 |
| VANGUARD GROUP INC | 3770569.00 | $1.17B | 2025-12-31 |
| VANGUARD CAPITAL MANAGEMENT LLC | 1694488.00 | $556.42M | 2026-03-31 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 1654477.00 | $543.28M | 2026-03-31 |
| HBK INVESTMENTS L P | 1634261.00 | $536.64M | 2026-03-31 |
| STATE STREET CORP | 1185811.00 | $389.38M | 2026-03-31 |
| MILLENNIUM MANAGEMENT LLC | 1098136.00 | $360.59M | 2026-03-31 |
| Insider | Transaction | Value | Date |
|---|---|---|---|
| Sell | null | 2026-05-19 | |
| Sell | null | 2026-04-02 | |
| Buy | null | 2026-03-15 | |
| Buy | null | 2026-03-15 | |
| Buy | null | 2026-03-15 | |
| Buy | null | 2026-03-15 | |
| Sell | null | 2026-03-02 | |
| Sell | null | 2026-02-17 |
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Institutional data from SEC Form 13F. Insider data from SEC Form 4. Congressional data from STOCK Act disclosures. Not personalized investment advice.