InsiderTrades

Form 4 for MGNI MAGNITE, INC.

Accepted 2025-11-18 00:00:00 ET · period of report 2025-11-15 · accession 0001966857-25-000003 · 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
2025-11-18 2025-11-15 MGNI Buonasera David CTO F - Tax $14.15 -7,129 231.8K -3% -$100.9K

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Stock 2025-11-15 F D 7,129 $14.15 231,824 D — — (F2) Includes 324 shares acquired by the Reporting Person on November 15, 2025 under the Issuer's Employee Stock Purchase Plan.