| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Chandna Asheem | Director | C/O GREYLOCK PARTNERS, 2550 SAND HILL ROAD, SUITE 200, MENLO PARK | /s/ Larry Guo, Attorney-in-Fact | 17 Jun 2025 | 0001392138 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | RBRK | Class A Common Stock | Conversion of derivative security | $0 | +2,238,223 | +100% | $0.000000 | 4,476,447 | 13 Jun 2025 | By Greylock XIV Limited Partnership | F1 |
| transaction | RBRK | Class A Common Stock | Conversion of derivative security | $0 | +124,345 | +100% | $0.000000 | 248,691 | 13 Jun 2025 | By Greylock XIV-A Limited Partnership | F2 |
| transaction | RBRK | Class A Common Stock | Conversion of derivative security | $0 | +124,345 | +100% | $0.000000 | 248,691 | 13 Jun 2025 | By Greylock XIV Principals LLC | F3 |
| transaction | RBRK | Class A Common Stock | Other | $0 | -4,476,447 | -100% | $0.000000 | 0 | 17 Jun 2025 | By Greylock XIV Limited Partnership | F1, F4 |
| transaction | RBRK | Class A Common Stock | Other | $0 | -248,691 | -100% | $0.000000 | 0 | 17 Jun 2025 | By Greylock XIV-A Limited Partnership | F2, F4 |
| transaction | RBRK | Class A Common Stock | Other | $0 | -248,691 | -100% | $0.000000 | 0 | 17 Jun 2025 | By Greylock XIV Principals LLC | F3, F4 |
| transaction | RBRK | Class A Common Stock | Other | $0 | +281,673 | +50% | $0.000000 | 846,187 | 17 Jun 2025 | Direct | F5 |
| transaction | RBRK | Class A Common Stock | Other | $0 | +2,324 | +50% | $0.000000 | 6,972 | 17 Jun 2025 | By Asheem Chandna and Aarti Chandna, trustees of the Chandna Children's Trust dated 12/23/2012 | F6 |
| transaction | RBRK | Class A Common Stock | Other | $0 | +11,621 | +50% | $0.000000 | 34,863 | 17 Jun 2025 | By The Revocable Trust of Asheem Chandna and Aarti Chandna, UDT 4/13/98 | F7 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | RBRK | Class B Common Stock | Conversion of derivative security | $0 | -2,238,223 | -33% | $0.000000 | 4,476,448 | 13 Jun 2025 | Class A Common Stock | 2,238,223 | By Greylock XIV Limited Partnership | F1, F8 | |
| transaction | RBRK | Class B Common Stock | Conversion of derivative security | $0 | -124,345 | -33% | $0.000000 | 248,691 | 13 Jun 2025 | Class A Common Stock | 124,345 | By Greylock XIV-A Limited Partnership | F2, F8 | |
| transaction | RBRK | Class B Common Stock | Conversion of derivative security | $0 | -124,345 | -33% | $0.000000 | 248,691 | 13 Jun 2025 | Class A Common Stock | 124,345 | By Greylock XIV Principals LLC | F3, F8 |
| Id | Content |
|---|---|
| F1 | The shares are held of record by Greylock XIV Limited Partnership, or Greylock XIV LP. Greylock XIV GP LLC, or Greylock XIV GP, is the general partner of Greylock XIV LP. Greylock XIV GP may be deemed to share voting and dispositive power with regard to the shares held directly by Greylock XIV LP and may be deemed to have indirect beneficial ownership of an indeterminate number of such shares. The Reporting Person is one of the managing members of Greylock XIV GP, and may be deemed to share voting and investment power over the shares held by Greylock XIV LP. The Reporting Person disclaims beneficial ownership of these shares and this report shall not be deemed an admission that he is the beneficial owner of such shares, except to the extent of his pecuniary interest, if any. |
| F2 | The shares are held of record by Greylock XIV-A Limited Partnership, or Greylock XIV-A LP. Greylock XIV GP is the general partner of Greylock XIV-A LP. Greylock XIV GP may be deemed to share voting and dispositive power with regard to the shares held directly by Greylock XIV-A LP and may be deemed to have indirect beneficial ownership of an indeterminate number of such shares. The Reporting Person is one of the managing members of Greylock XIV GP, and may be deemed to share voting and investment power over the shares held by Greylock XIV-A LP. The Reporting Person disclaims beneficial ownership of these shares and this report shall not be deemed an admission that he is the beneficial owner of such shares, except to the extent of his pecuniary interest, if any. |
| F3 | The shares are held of record by Greylock XIV Principals LLC, or Greylock XIV Principals. Greylock XIV GP is the manager of Greylock XIV Principals. Greylock XIV GP may be deemed to share voting and dispositive power with regard to the shares held directly by Greylock XIV Principals and may be deemed to have indirect beneficial ownership of an indeterminate number of such shares. The Reporting Person is one of the managing members of Greylock XIV GP, and may be deemed to share voting and investment power over the shares held by Greylock XIV Principals. The Reporting Person disclaims beneficial ownership of these shares and this report shall not be deemed an admission that he is the beneficial owner of such shares, except to the extent of his pecuniary interest, if any. |
| F4 | Represents a pro-rata, in-kind distribution by the Reporting Person and its affiliated funds and associated persons, without additional consideration, to its respective partners, members and/or assigns. Such distribution was made in accordance with the exemption afforded by Rules 16a-13 and 16a-9 of the Securities Exchange Act of 1934, as amended. |
| F5 | Represents (i) 266,849 shares of Class A Common Stock acquired by the Reporting Person in a distribution by Greylock XIV Limited Partnership for no consideration and (ii) 14,824 shares of Class A Common Stock acquired by the Reporting Person in a distribution by Greylock XIV-A Limited Partnership for no consideration. All of the aforementioned distributions were made in accordance with the exemptions afforded by Rules 16a-9 and 16a-13 of the Securities Exchange Act of 1934, as amended. |
| F6 | Represents 2,324 shares of Class A Common Stock acquired by the Reporting Person in a distribution by Greylock XIV Principals, LLC for no consideration in accordance with the exemptions afforded by Rules 16a-9 and 16a-13 of the Securities Exchange Act of 1934, as amended. |
| F7 | Represents 11,621 shares of Class A Common Stock acquired by the Reporting Person in a distribution by Greylock XIV Principals, LLC for no consideration in accordance with the exemptions afforded by Rules 16a-9 and 16a-13 of the Securities Exchange Act of 1934, as amended. |
| F8 | Each share of Class B Common Stock 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 is also convertible at any time at the option of the holder into one share of Class A Common Stock |