RBRK (Rubrik, Inc.)
Insider Trading Activity
Every open-market purchase and sale reported by RBRK officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-09-03 | JOHN WENDELL THOMPSON | Director | MIXED | — | — |
| 2026-09-03 | Yvonne Wassenaar | Director | MIXED | — | — |
| 2026-08-28 | Rakefet Russak-Aminoach | Director | A | — | — |
| 2026-08-25 | Kiran Kumar Choudary | Chief Financial Officer | MIXED | — | — |
| 2026-08-05 | Arvind Nithrakashyap | Chief Technology Officer | MIXED | — | — |
| 2026-08-04 | Yvonne Wassenaar | Director | Sell | — | — |
| 2026-08-04 | JOHN WENDELL THOMPSON | Director | MIXED | — | — |
| 2026-07-16 | Kiran Kumar Choudary | Chief Financial Officer | MIXED | — | — |
| 2026-07-14 | Ravi Mhatre | Director | MIXED | — | — |
| 2026-07-08 | Arvind Nithrakashyap | Chief Technology Officer | MIXED | — | — |
| 2026-07-01 | Yvonne Wassenaar | Director | Sell | — | — |
| 2026-07-01 | JOHN WENDELL THOMPSON | Director | MIXED | — | — |
| 2026-06-26 | Ravi Mhatre | Director | MIXED | — | — |
| 2026-06-24 | Yvonne Wassenaar | Director | Sell | — | — |
| 2026-06-17 | Arvind Nithrakashyap | Chief Technology Officer | F | — | — |
| 2026-06-17 | Kiran Kumar Choudary | Chief Financial Officer | F | — | — |
| 2026-06-05 | Ravi Mhatre | Director | A | — | — |
| 2026-06-05 | MARK D MCLAUGHLIN | Director | A | — | — |
| 2026-06-05 | Asheem Chandna | Director | A | — | — |
| 2026-06-03 | Richard Scott Herren | Director | A | — | — |
| 2026-06-03 | Arvind Nithrakashyap | Chief Technology Officer | MIXED | — | — |
| 2026-06-03 | JOHN WENDELL THOMPSON | Director | MIXED | — | — |
| 2026-06-03 | Yvonne Wassenaar | Director | MIXED | — | — |
| 2026-06-01 | Yvonne Wassenaar | Director | MIXED | — | — |
| 2026-05-04 | JOHN WENDELL THOMPSON | Director | MIXED | — | — |
| 2026-04-16 | Arvind Nithrakashyap | Chief Technology Officer | A | — | — |
| 2026-04-16 | Kiran Kumar Choudary | Chief Financial Officer | A | — | — |
| 2026-04-08 | Kiran Kumar Choudary | Chief Financial Officer | MIXED | — | — |
| 2026-04-02 | JOHN WENDELL THOMPSON | Director | MIXED | — | — |
| 2026-04-01 | MARK D MCLAUGHLIN | Director | Buy | — | — |
| 2026-03-26 | Kiran Kumar Choudary | Chief Financial Officer | MIXED | — | — |
| 2026-03-26 | Arvind Nithrakashyap | Chief Technology Officer | MIXED | — | — |
| 2026-03-03 | JOHN WENDELL THOMPSON | Director | MIXED | — | — |
| 2026-02-19 | Kiran Kumar Choudary | Chief Financial Officer | MIXED | — | — |
| 2026-02-03 | JOHN WENDELL THOMPSON | Director | MIXED | — | — |
| 2026-02-03 | Brian K. McCarthy | Pres.,Global Sales & Field Ops | A | — | — |
| 2026-01-16 | Ravi Mhatre | Director | Sell | — | — |
| 2026-01-16 | JOHN WENDELL THOMPSON | Director | MIXED | — | — |
| 2026-01-16 | Asheem Chandna | Director | A | — | — |
| 2026-01-16 | Richard Scott Herren | Director | A | — | — |
| 2026-01-16 | MARK D MCLAUGHLIN | Director | A | — | — |
| 2026-01-16 | Yvonne Wassenaar | Director | A | — | — |
| 2026-01-16 | Ravi Mhatre | Director | A | — | — |
| 2026-01-16 | Arvind Nithrakashyap | Chief Technology Officer | Sell | — | — |
| 2026-01-16 | Kiran Kumar Choudary | Chief Financial Officer | MIXED | — | — |
| 2026-01-13 | Brian K. McCarthy | Pres.,Global Sales & Field Ops | Sell | — | — |
| 2026-01-08 | Kiran Kumar Choudary | Chief Financial Officer | MIXED | — | — |
| 2026-01-06 | JOHN WENDELL THOMPSON | Director | MIXED | — | — |
| 2025-12-23 | Kiran Kumar Choudary | Chief Financial Officer | MIXED | — | — |
| 2025-12-23 | Arvind Nithrakashyap | Chief Technology Officer | MIXED | — | — |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| — | 10%+ Owner | 6,714,671 | — |
| — | 10%+ Owner | 5,545,283 | — |
| — | 10%+ Owner | 3,330,649 | — |
| — | 10%+ Owner | 1,031,000 | — |
| — | Chief Financial Officer | 978,373 | — |
| — | Pres.,Global Sales & Field Ops | 772,794 | — |
| — | 10%+ Owner | 456,056 | — |
| — | Director | 351,393 | — |
| — | Chief Technology Officer | 293,293 | — |
| — | 10%+ Owner | 248,691 | — |
| — | Chairman of the Board and CEO | 206,652 | — |
| — | Director | 125,351 | — |
| — | 10%+ Owner | 124,346 | — |
| — | Director | 20,028 | — |
| — | Director | 17,262 | — |
| — | Director | 10,682 | — |
| — | Director | 10,304 | — |
| — | Director | 7,461 | — |
| — | Director | 3,709 | — |
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the RBRK quote page; the site-wide leaderboard is on the insider transactions hub.