Form 4 Tracker
David Day

CHIEF FINANCIAL OFFICER · 4 filings · Latest: Aug 15, 2026

MAGNITE, INC.
TickerOwnerRelationshipDateTransactionCost#SharesValue ($)#Shares TotalSEC Filing
MGNI
David Day—Aug 18, 2025
Proposed Sale
$23.7014,518$344.1K—
MGNI
DAVID DAY—Jun 30, 2025
Proposed Sale
$22.0021,682$477.0K—
MGNI
DAVID DAY—Jun 26, 2025
Proposed Sale
$20.9536,000$754.2K—
MGNI
DAVID DAY—Jun 24, 2025
Proposed Sale
$19.9535,000$698.3K—
MGNI
DAVID DAY—Jun 18, 2025
Proposed Sale
$18.9538,146$722.9K—
MGNI
DAVID DAY—Feb 7, 2025
Proposed Sale
$20.0039,000$780.0K—
MGNI
DAVID DAY—Feb 6, 2025
Proposed Sale
$18.3513,245$243.0K—
MGNI
DAVID DAY—Jan 3, 2025
Proposed Sale
$17.0013,345$226.9K—
MGNI
DAVID DAY—Dec 17, 2024
Proposed Sale
$16.3213,500$220.3K—
MGNI
DAVID DAY—Dec 16, 2024
Proposed Sale
$16.4411,644$191.4K—