Penumbra, Inc. (PEN) Insider Trading
Over the last 6 months, 300 institutions increased and 330 reduced their position (13F).
Insider Activity
Sentiment
50/100
Buys (3m)
0
Sells (3m)
0
Net (3m)
$0
Insider trades by month Buys Sells
Oct
Nov
Dec
Jan
Mar
Apr
Context3-month price +1.5%Institutions mixed (13F)
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| Aug 19, 2026 | Narayan Shruthiofficer: President | Grant | 3,060 | — |
| Apr 6, 2026 | Grewal Harpreetdirector | Sell | 100 | $328.22 |
| Mar 17, 2026 | Shiu Lambertofficer: Chief Accounting Officer | Tax | 150 | $336.18 |
| Mar 17, 2026 | Roberts Johannaofficer: EVP, Gen. Counsel & Secretary | Tax | 186 | $336.18 |
| Mar 17, 2026 | Narayan Shruthiofficer: President | Tax | 117 | $336.18 |
| Mar 17, 2026 | Yuen Maggieofficer: Chief Financial Officer | Tax | 186 | $336.18 |
| Mar 4, 2026 | Yuen Maggieofficer: Chief Financial Officer | Sell | 2,432 | $342.30 |
| Feb 18, 2026 | Shiu Lambertofficer: Chief Accounting Officer | Grant | 2,300 | — |
| Feb 18, 2026 | Roberts Johannaofficer: EVP, Gen. Counsel & Secretary | Tax | 482 | $339.30 |
| Feb 18, 2026 | Yuen Maggieofficer: Chief Financial Officer | Grant | 2,630 | — |
| Feb 18, 2026 | Leeds Janetdirector | Grant | 589 | — |
| Feb 18, 2026 | Narayan Shruthiofficer: President | Tax | 705 | $339.30 |
| Feb 18, 2026 | Wilder Thomasdirector | Grant | 589 | — |
| Feb 18, 2026 | Narayan Shruthiofficer: President | Grant | 2,630 | — |
| Feb 18, 2026 | Yuen Maggieofficer: Chief Financial Officer | Tax | 481 | $339.30 |
| Feb 18, 2026 | Sarna Surbhidirector | Grant | 589 | — |
| Feb 18, 2026 | O'Rourke Bridgetdirector | Grant | 589 | — |
| Feb 18, 2026 | Grewal Harpreetdirector | Grant | 589 | — |
| Feb 18, 2026 | Shiu Lambertofficer: Chief Accounting Officer | Tax | 412 | $339.30 |
| Feb 18, 2026 | Roberts Johannaofficer: EVP, Gen. Counsel & Secretary | Grant | 2,630 | — |
| Feb 18, 2026 | Bose Aranidirector | Grant | 589 | — |
| Jan 16, 2026 | Narayan Shruthiofficer: President | Tax | 286 | $350.49 |
| Jan 8, 2026 | Grewal Harpreetdirector | Sell | 186 | $312.64 |
| Jan 6, 2026 | Wilder Thomasdirector | Sell | 186 | $310.72 |
| Dec 17, 2025 | Roberts Johannaofficer: EVP, Gen. Counsel & Secretary | Tax | 1,130 | $309.15 |
| Dec 17, 2025 | Shiu Lambertofficer: Chief Accounting Officer | Tax | 300 | $309.15 |
| Dec 17, 2025 | Yuen Maggieofficer: Chief Financial Officer | Tax | 565 | $309.15 |
| Dec 15, 2025 | Bose Aranidirector | Sell | 2,082 | $310.50 |
| Dec 15, 2025 | Bose Aranidirector | Sell | 3,523 | $311.47 |
| Dec 15, 2025 | Bose Aranidirector | Sell | 4 | $308.00 |
Source: PEN SEC Form 4 filings, latest Aug 19, 2026. For informational purposes only — not investment advice.
Institutional activity (13F)
How institutions changed their PEN positions over the last 6 months (SEC Form 13F).
Increased
300
New positions
176
Reduced
330
Sold out
68
Largest moves
| Institution | Action | Shares | Filed |
|---|---|---|---|
| BLACKROCK, INC. | Increased | 4.3M | May 13, 2026 |
| BlackRock, Inc. | Reduced | 4.3M | Aug 7, 2026 |
| HBK INVESTMENTS L P | Increased | 1.8M | Aug 14, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | Increased | 1.7M | Aug 13, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 1.7M | May 15, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Increased | 1.7M | Aug 13, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | New Position | 1.7M | May 8, 2026 |
| HBK INVESTMENTS L P | New Position | 1.6M | May 15, 2026 |
| STATE STREET CORP | Increased | 1.2M | Aug 7, 2026 |
| STATE STREET CORP | Increased | 1.2M | May 15, 2026 |
| MILLENNIUM MANAGEMENT LLC | Increased | 1.1M | May 15, 2026 |
| ExodusPoint Capital Management, LP | Increased | 1.1M | Aug 14, 2026 |
| BALYASNY ASSET MANAGEMENT L.P. | Increased | 1.1M | Aug 14, 2026 |
| JPMORGAN CHASE & CO | Increased | 1.1M | Aug 12, 2026 |
| MILLENNIUM MANAGEMENT LLC | Reduced | 948K | Aug 14, 2026 |
Source: SEC Form 13F filings. For informational purposes only — not investment advice.