SEC Form 4 · accession 0001100612-26-000009
MAGNITE, INC. · MGNI
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Michael G. Barrett
Officer — CEO · Director
Period of report
Aug 6, 2026
Accepted (ET)
Aug 7, 2026 · 5:00 pm EDT
Rule 10b5-1 plan
yes — trade under a plan
Issuer CIK
0001595974
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Common Stock | Aug 6, 2026 | M | 293,968 | $5.80 | A | 697,042 | D | |
| Common Stock | Aug 6, 2026 | S | 293,968 | $22.72 | D | 403,074 | D |
Table II — derivative securities
| Security | Conv. / exercise price | Date | Code | Shares | A/D | Exercisable | Expires | Underlying | Underlying shares | Owned after | D/I |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Stock Option (right to buy)F3,F2 | $5.80 | Aug 6, 2026 | M | 293,968 | D | — | Mar 17, 2027 | Common Stock | 293,968 | 0 | D |
Explanation of responses
- F1This exercise and subsequent sale were made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 13, 2026.
- F2The stock options have fully vested and are immediately exercisable.
- F3Granted as compensation for services.