Penumbra, Inc. (PEN) Shareholders & Insider Trades
Penumbra shareholders at a glance
The largest holder of Penumbra stock is BlackRock Advisors LLC, with 4.0 million shares (10.28% of the company), worth about $1.31 billion as of September 25, 2026. The 10 largest holders together own 39.2%.
In Q2 2026, 475 institutional holdings reports listed shares worth $10.80 billion.
Insiders reported 50 transactions in the last two years: 32 sales worth $60.37 million and no purchases. The newest one on file is from November 4, 2025 (Grewal Harpreet Singh, Director).
Major holders as of September 25, 2026; quarterly totals from institutional holdings reports (latest Q2 2026); insider transactions on file through November 4, 2025.
Penumbra, Inc.
Shareholders Summary
2026Q2
Ownership by Type
Geographic Distribution
Largest Penumbra shareholders
| Holder | Shares | % of company | Value |
|---|---|---|---|
| BlackRock Advisors LLC | 4.0 million | 10.28% | $1.3B |
| HBK Investments LP | 1.8 million | 4.67% | $594.0M |
| Vanguard Capital Management LLC | 1.7 million | 4.34% | $552.0M |
| Vanguard Portfolio Management LLC | 1.7 million | 4.23% | $539.0M |
| State Street Corporation | 1.2 million | 3.16% | $402.0M |
| ExodusPoint Capital Management LP | 1.1 million | 2.77% | $352.0M |
| Balyasny Asset Management LP | 1.1 million | 2.77% | $352.0M |
| JPMorgan Investment Management, Inc. | 1.1 million | 2.72% | $346.0M |
| Goldman Sachs Asset Management LP | 847,104 | 2.15% | $274.0M |
| Arrowstreet Capital LP | 834,903 | 2.12% | $270.0M |
As of September 25, 2026.
Penumbra institutional holdings by quarter
| Quarter | Reports | Shares | Value |
|---|---|---|---|
| Q2 2026 | 475 | – | $10.8B |
| Q1 2026 | 501 | 33.8 million | $11.1B |
| Q4 2025 | 456 | 36.8 million | $11.4B |
| Q3 2025 | 445 | 37.1 million | $9.4B |
| Q2 2025 | 481 | 35.9 million | $9.2B |
| Q1 2025 | 453 | 35.2 million | $9.4B |
| Q4 2024 | 389 | 34.9 million | $8.3B |
| Q3 2024 | 359 | 35.6 million | $6.9B |
Shares and value held by institutions that file quarterly holdings reports (options not included).
Penumbra insider trades
| Insider | Date | Title | Transaction | Value |
|---|---|---|---|---|
| Grewal Harpreet Singh | Nov 4, 2025 | Director | Sale at price 227.58 per share. | $42,330 |
| Grewal Harpreet Singh | Oct 2, 2025 | Director | Sale at price 248.61 per share. | $46,241 |
| Wilder Thomas C Iii | Oct 1, 2025 | Director | Sale at price 253.93 per share. | $47,231 |
| Roberts Johanna | Oct 1, 2025 | General Counsel | Sale at price 243.61 - 256.63 per share. | $149,820 |
| Narayan Shruthi | Sep 15, 2025 | President | Stock Award(Grant) at price 0.00 per share. | – |
| Elsesser Adam | Sep 3, 2025 | Chief Executive Officer | Sale at price 268.41 - 270.81 per share. | $4.3M |
| Elsesser Adam | Sep 3, 2025 | Chief Executive Officer | Conversion of Exercise of derivative security at price 30.00 per share. | $839,400 |
| Grewal Harpreet Singh | Sep 2, 2025 | Director | Sale at price 272.19 per share. | $50,627 |
| Roberts Johanna | Sep 2, 2025 | General Counsel | Sale at price 269.20 - 273.12 per share. | $162,347 |
| Elsesser Adam | Aug 20, 2025 | Chief Executive Officer | Sale at price 252.86 - 256.50 per share. | $4.0M |
| Elsesser Adam | Aug 20, 2025 | Chief Executive Officer | Conversion of Exercise of derivative security at price 30.00 per share. | $839,280 |
| Yuen Maggie S. | Aug 15, 2025 | Chief Financial Officer | Conversion of Exercise of derivative security at price 158.30 per share. | $114,609 |
Newest 12 of 50 insider transactions in the last two years.
Questions and answers
Who owns the most Penumbra stock?
BlackRock Advisors LLC, with 10.28% of the company (as of September 25, 2026). Next: HBK Investments LP (4.67%) and Vanguard Capital Management LLC (4.34%).
How many institutions own Penumbra stock?
475 institutional holdings reports listed Penumbra shares in Q2 2026 worth $10.80 billion.
Are Penumbra insiders buying or selling the stock?
In the last two years insiders reported 32 sales and no purchases (50 transactions in all); the newest on file is from November 4, 2025.
