| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Mhatre Ravi | Director | 2200 SAND HILL ROAD, MENLO PARK | /s/ Larry Guo, Attorney-in-Fact | 16 Jan 2026 | 0001366050 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | RBRK | Class A Common Stock | Award | $0 | +220 | +0.23% | $0.000000 | 97,894 | 15 Jan 2026 | Direct | F1 |
| holding | RBRK | Class A Common Stock | 442,739 | 15 Jan 2026 | By Mhatre Investments LP - Fund 2 | F2 | |||||
| holding | RBRK | Class A Common Stock | 83,909 | 15 Jan 2026 | By Mhatre Investments LP - Fund 3 | F3 | |||||
| holding | RBRK | Class A Common Stock | 649 | 15 Jan 2026 | By Trust | F4 |
| Id | Content |
|---|---|
| F1 | Represents the grant of restricted stock units that are fully vested as of the date of grant. |
| F2 | The Reporting Person serves as trustee of the general partner of Mhatre Investments LP - Fund 2. |
| F3 | The Reporting Person serves as trustee of the general partner of Mhatre Investments LP - Fund 3. |
| F4 | The Reporting Person is the trustee of the Mhatre 2011 Irrevocable Children's Trust. |