Form 4 for MGNI MAGNITE, INC.
Accepted 2026-06-17 18:45:17 ET · period of report 2026-06-15 · accession 0001193125-26-274503 · SEC index · Original document
Summary rows
Aggregated the way they appear in lists: one row per insider, transaction code and security table.
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| MT | 2026-06-17 18:45 | 2026-06-15+ | MGNI | Buonasera David | CTO | S - Sale | $18.03 | -13.7K | 279.1K | -5% | -$246.9K |
Purchase Sale Sale after option exercise All abbreviations
Every reported transaction
| # | Table | Security | Date | Code | A/D | Shares | Price | Owned after | Own | Exercise / expiry | Underlying | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Common | Common Stock | 2026-06-15 | S | D | 1,057 | $17.00 | 291,727 | D | — | — | (F1) The reported transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on September 11, 2025. |
| 2 | Common | Common Stock | 2026-06-16 | S | D | 11,233 | $18.00 | 280,494 | D | — | — | (F1) The reported transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on September 11, 2025. |
| 3 | Common | Common Stock | 2026-06-17 | S | D | 1,409 | $19.00 | 279,085 | D | — | — | (F1) The reported transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on September 11, 2025. |