| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Gephart Brian | CHIEF ACCOUNTING OFFICER | C/O MAGNITE, INC., 1250 BROADWAY, 15TH FLOOR, NEW YORK | /s/ Aaron Saltz, attorney-in-fact | 14 May 2025 | 0001778484 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | MGNI | Common Stock | Sale | $102,357 | -6,334 | -4.8% | $16.16 | 126,575 | 12 May 2025 | Direct |