TOP TIERMARKET NEWSWIRE
SEC Form 4 history

MAGNITE INC (MGNI) insider trades

MAGNITE INC (MGNI) insider trading activity (SEC Form 4). Over the trailing 90 days, MGNI insiders filed 0 purchases totalling $0 and 26 sales totalling $19.1M — net SELLING of $19.1M. Most recent filing: Sep 18, 2026. Insider transactions are a Pro-tier alertable signal in the live Top Tier Newswire terminal — Form 4 filings reach the wire within minutes of acceptance by the SEC. Data shown publicly here is delayed 4 hours.

Public view, delayed 4h. Real-time alerting on insider filings is a Pro feature.Open in the live terminal →
Buys (90d)
0
$0
Sells (90d)
26
$19.1M
Net (90d)
-$19.1M
net selling
Most recent
Sep 18, 2026

Recent transactions

FiledInsiderRoleTypeSharesPriceValue
Sep 18, 2026Caine PaulDirS Sale—$26.50$199Kfiling
Sep 18, 2026Knopper Douglas SDirS Sale—$26.28$981Kfiling
Sep 16, 2026Spillane Robert FDirS SaleOE—$23.76$246Kfiling
Sep 16, 2026Buonasera DavidCTOS Sale—$24.00$28Kfiling
Sep 11, 2026Evans Katie SeitzSee RemarksS Sale—$24.00$336Kfiling
Sep 11, 2026Saltz AaronGCS Sale—$23.41$936Kfiling
Sep 11, 2026Caine PaulDirS Sale—$23.53$118Kfiling
Sep 10, 2026Evans Katie SeitzSee RemarksS SaleOE—$23.59$1.0Mfiling
Sep 3, 2026Buonasera DavidCTOS Sale—$23.68$152Kfiling
Aug 28, 2026Harden Sarah PatriciaDirS Sale—$23.57$1.2Mfiling
Aug 18, 2026Buckley Sean PatrickSee RemarksS Sale—$24.48$270Kfiling
Aug 18, 2026Caine PaulDirS Sale—$25.00$188Kfiling
Aug 12, 2026Gephart BrianCHIEF ACCOUNTING OFFICERS Sale—$24.68$308Kfiling
Aug 12, 2026Lam RachelDirS Sale—$24.16$242Kfiling
Aug 12, 2026Caine PaulDirS Sale—$24.35$122Kfiling
Aug 7, 2026Buckley Sean PatrickSee RemarksS SaleOE—$24.49$1.6Mfiling
Aug 7, 2026Knopper Douglas SDirS Sale—$22.72$848Kfiling
Aug 7, 2026Buonasera DavidCTOS Sale—$23.46$179Kfiling
Aug 7, 2026Evans Katie SeitzSee RemarksS SaleOE—$24.00$480Kfiling
Aug 7, 2026Barrett Michael G.CEOS SaleOE—$22.72$6.7Mfiling
Jul 17, 2026Barrett Michael G.CEOS SaleOE—$20.35$785Kfiling
Jul 14, 2026Caine PaulDirS Sale—$20.64$103Kfiling
Jul 9, 2026Buckley Sean PatrickSee RemarksS Sale—$21.03$404Kfiling
Jul 9, 2026Buonasera DavidCTOS Sale—$21.00$26Kfiling
Jul 2, 2026Buonasera DavidCTOS Sale—$20.00$188Kfiling
Jul 1, 2026Barrett Michael G.CEOS SaleOE—$19.50$1.5Mfiling
Jun 18, 2026Buckley Sean PatrickSee RemarksS Sale—$19.00$365Kfiling
Jun 17, 2026Knopper Douglas SDirS Sale—$18.10$676Kfiling
Jun 17, 2026Barrett Michael G.CEOS SaleOE—$16.92$4.7Mfiling
Jun 17, 2026Buonasera DavidCTOS Sale—$18.03$247Kfiling