| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Lightspeed Management Company, L.L.C. | 10%+ Owner | 2200 SAND HILL ROAD, MENLO PARK | Lightspeed Management Company, L.L.C., By /s/ Ravi Mhatre, Managing Member | 02 Jul 2025 | 0001702122 |
| Eggers Barry | 10%+ Owner | C/O LIGHTSPEED VENTURE PARTNERS, 2200 SAND HILL ROAD, MENLO PARK | /s/ Barry Eggers | 02 Jul 2025 | 0001366048 |
| Nieh Peter | 10%+ Owner | C/O LIGHTSPEED VENTURE PARTNERS, 2200 SAND HILL ROAD, MENLO PARK | /s/ Peter Nieh | 02 Jul 2025 | 0001366051 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | RBRK | Class A Common Stock | Sale | $1,519,558 | -16,984 | -100% | $89.47 | 0 | 30 Jun 2025 | Direct | F1, F2 |
| holding | RBRK | Class A Common Stock | 59,182 | 30 Jun 2025 | Direct | F3 | |||||
| holding | RBRK | Class A Common Stock | 356,242 | 30 Jun 2025 | By Eggers Investments LP - Fund 2 | F4 | |||||
| holding | RBRK | Class A Common Stock | 59,182 | 30 Jun 2025 | Direct | F5 | |||||
| holding | RBRK | Class A Common Stock | 649 | 30 Jun 2025 | By Nieh Family Investments LP - Fund 1 | F6 | |||||
| holding | RBRK | Class A Common Stock | 396,874 | 30 Jun 2025 | By Nieh Family Investments LP - Fund 2 | F7 | |||||
| holding | RBRK | Class A Common Stock | 8,387 | 30 Jun 2025 | By Nieh Family Investments LP - Fund 3 | F8 | |||||
| holding | RBRK | Class A Common Stock | 50,331 | 30 Jun 2025 | By Nieh Family Investments LP - Fund 4 | F9 |
| Id | Content |
|---|---|
| F1 | The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $89.30 to $89.69 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. |
| F2 | Shares are held by Lightspeed Management Company, L.L.C. ("LMC"). Barry Eggers, Ravi Mhatre, and Peter Nieh are managing members of LMC and share voting and dispositive power with respect to the shares held by LMC. Each of Messrs. Eggers and Nieh disclaims beneficial ownership of these shares except to the extent of his respective pecuniary interest therein. Mr. Mhatre is a director of the Issuer and files separate Section 16 reports. |
| F3 | Shares are held by Barry Eggers. |
| F4 | Barry Eggers serves as trustee of the general partner of Eggers Investments LP - Fund 2. |
| F5 | Shares are held by Peter Nieh. |
| F6 | Peter Nieh serves as co-trustee of the general partner of Nieh Family Investments LP - Fund 1. |
| F7 | Peter Nieh serves as co-trustee of the general partner of Nieh Family Investments LP - Fund 2. |
| F8 | Peter Nieh serves as co-trustee of the general partner of Nieh Family Investments LP - Fund 3. |
| F9 | Peter Nieh serves as co-trustee of the general partner of Nieh Family Investments LP - Fund 4. |