InsiderTrades

Form 4 for MGNI MAGNITE, INC.

Accepted 2026-08-18 16:16:17 ET · period of report 2026-08-14 · accession 0001411765-26-000005 · 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
T 2026-08-18 16:16 2026-08-14 MGNI Caine Paul Dir S - Sale $25.00 -7,500 149.9K -5% -$187.5K

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Stock 2026-08-14 S D 7,500 $25.00 149,901 D — — (F1) The reported transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 20, 2025.