InsiderTrades

Form 4 for MGNI MAGNITE, INC.

Accepted 2025-06-20 00:00:00 ET · period of report 2025-06-18 · accession 0001415889-25-017858 · 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
D 2025-06-20 2025-06-18 MGNI Day David CFO M - OptEx $4.92 +38.1K 481.7K +9% +$187.7K
D 2025-06-20 2025-06-18 MGNI Day David CFO S - Sale+OE $18.95 -38.1K 443.5K -8% -$722.9K
D 2025-06-20 2025-06-18 MGNI Day David CFO M - OptEx $0.00 -38.1K 0 -100% $0

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Stock 2025-06-18 M A 38,146 $4.92 481,674 D — —
2 Common Common Stock 2025-06-18 S D 38,146 $18.95 443,528 D — —
3 Derivative Employee Stock Option (Right to Buy) 2025-06-18 M D 38,146 $0.00 0 D $4.92 · — to 2029-02-20 38,146 Common Stock (F3) Granted as compensation for services. (F2) 25% of the stock options vested on February 1, 2020 and the remaining option shares vested in 36 equal installments each calendar month thereafter.