MAGNITE, INC. (MGNI) has 31 SEC Form 4 insider filings on record in the last 90 days. No insider purchases were filed — 19 sales totalling $9.1M. Most recent filing: Sept. 18, 2026.
| Date | Insider | Value | Shares | Stake | Pre-planned | Links |
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| Sept. 18, 2026 filed Sept. 17, 2026 | Caine Paul Director | −$198,750 | 7,500 | −5% | Yes | |
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| Sept. 16, 2026 filed Sept. 14, 2026 | Buonasera David CHIEF TECHNOLOGY OFFICER | −$27,960 | 1,165 | −0% | Yes | |
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| Sept. 16, 2026 filed Sept. 14, 2026 | Spillane Robert F Director | $192,648 | 31,089 | — | No | |
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| Sept. 11, 2026 | Evans Katie Seitz See Remarks | −$335,928 | 13,997 | −3% | Yes | |
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| Sept. 11, 2026 filed Sept. 10, 2026 | Saltz Aaron CHIEF LEGAL OFFICER | −$936,400 | 40,000 | −15% | Yes | |
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Showing the 5 most recent of 31 filings in the last 90 days.
Form 4 is the filing company officers, directors and 10% shareholders must submit to the SEC within two business days of trading their own company's stock. Open-market purchases generally carry more signal than sales, which are often scheduled in advance. More on how this works.
Real-time Telegram alerts the moment a Form 4 is filed. Filings shown here are delayed by 72 hours.
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