| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| THOMPSON JOHN WENDELL | Director | C/O RUBRIK INC., 3495 DEER CREEK ROAD, PALO ALTO | /s/ Larry Guo, Attorney-in-Fact | 03 Feb 2026 | 0001207433 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | RBRK | Class A Common Stock | Sale | $59,972 | -1,100 | -3.9% | $54.52 | 27,398 | 02 Feb 2026 | By John and Sandra Thompson Trust | F1, F2, F3 |
| transaction | RBRK | Class A Common Stock | Sale | $50,076 | -900 | -3.3% | $55.64 | 26,498 | 02 Feb 2026 | By John and Sandra Thompson Trust | F1, F3, F4 |
| transaction | RBRK | Class A Common Stock | Sale | $28,210 | -500 | -1.9% | $56.42 | 25,998 | 02 Feb 2026 | By John and Sandra Thompson Trust | F1, F3, F5 |
| transaction | RBRK | Class A Common Stock | Conversion of derivative security | $0 | +11,000 | +301% | $0.000000 | 14,655 | 02 Feb 2026 | Direct | |
| transaction | RBRK | Class A Common Stock | Sale | $244,781 | -4,498 | -31% | $54.42 | 10,157 | 02 Feb 2026 | Direct | F1, F6 |
| transaction | RBRK | Class A Common Stock | Sale | $217,146 | -3,902 | -38% | $55.65 | 6,255 | 02 Feb 2026 | Direct | F1, F7 |
| transaction | RBRK | Class A Common Stock | Sale | $146,276 | -2,600 | -42% | $56.26 | 3,655 | 02 Feb 2026 | Direct | F1, F8 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | RBRK | Stock Option (Right to Buy) | Options Exercise | $0 | -11,000 | -7.1% | $0.000000 | 143,946 | 02 Feb 2026 | Class B Common Stock | 11,000 | $4.38 | Direct | F9 |
| transaction | RBRK | Class B Common Stock | Options Exercise | +11,000 | +22% | 61,001 | 02 Feb 2026 | Class A Common Stock | 11,000 | Direct | F10 | |||
| transaction | RBRK | Class B Common Stock | Conversion of derivative security | -11,000 | -18% | 50,001 | 02 Feb 2026 | Class A Common Stock | 11,000 | Direct | F10 | |||
| holding | RBRK | Class B Common Stock | 815,338 | 02 Feb 2026 | Class A Common Stock | 815,338 | By John and Sandra Thompson Trust | F3, F10 |
Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.
Transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c).
| Id | Content |
|---|---|
| F1 | This sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan, adopted October 6, 2025. |
| F2 | The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $54.18 to $55.09 per share, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities Exchange Commission, upon request, full information regarding the number of shares sold at each separated price within the range set forth in this footnote. |
| F3 | The shares are held of record by John and Sandra Thompson Trust, for which the Reporting Person serves as a co-trustee and shares voting and dispositive power with his spouse. |
| F4 | The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $55.18 to $56.01 per share, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities Exchange Commission, upon request, full information regarding the number of shares sold at each separated price within the range set forth in this footnote. |
| F5 | The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $56.31 to $56.52 per share, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities Exchange Commission, upon request, full information regarding the number of shares sold at each separated price within the range set forth in this footnote. |
| F6 | The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $54.08 to $55.07 per share, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities Exchange Commission, upon request, full information regarding the number of shares sold at each separated price within the range set forth in this footnote. |
| F7 | The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $55.08 to $56.04 per share, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities Exchange Commission, upon request, full information regarding the number of shares sold at each separated price within the range set forth in this footnote. |
| F8 | The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $56.08 to $56.50 per share, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities Exchange Commission, upon request, full information regarding the number of shares sold at each separated price within the range set forth in this footnote. |
| F9 | Fully vested. |
| F10 | Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock upon the sale or transfer of such share of Class B Common Stock, subject to certain exceptions, and in certain other circumstances described in the Issuer's amended and restated certificate of incorporation. Each share of Class B Common Stock will also be convertible at any time at the option of the Reporting Person into one share of Class A Common Stock. |