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Form 4 reporting owner · CIK 0001781873

Harden Sarah Patricia

Director

2Open-market trades
1Ticker
Avg 90d after buys
Avg 90d after sales
Avg 180d after buys
Avg 180d after sales

MGNI price and prints

Full MGNI chart

MAGNITE, INC. 2 open-market prints by this insider, 8/26/20268/28/2026. Triangles mark only their Form 4 purchases and sales.

MGNI adjusted close▲ buy▼ sale
20.6721.9123.1524.3925.632026-08-28 sell Harden Sarah Patricia2026-08-26 sell Harden Sarah Patricia2026-08-052026-09-18

MGNI trades

Clear
DateForm 4TickerSideSharesValue90d180d
8/28/2026
Form 410b5-1
MGNIMAGNITE, INCDirector
MAGNITE, INC · Services-Computer Programming, Data Processing, Etc.IndustryServices-Computer Programming, Data Processing, Etc.Mkt cap (est.)$11.22BPrice$25.1552w high$25.6352w low$11.20
SELL18,436$442.5K
8/26/2026
Form 410b5-1
MGNIMAGNITE, INCDirector
MAGNITE, INC · Services-Computer Programming, Data Processing, Etc.IndustryServices-Computer Programming, Data Processing, Etc.Mkt cap (est.)$11.22BPrice$25.1552w high$25.6352w low$11.20
SELL30,550$712.1K

Chart uses split-adjusted closes from the first print through the latest available bar. Returns use the last close on or before the trade date and the first close on or after 90 and 180 calendar days. Sales are signed so a declining price is a positive result for the seller. Not investment advice.