MGNI SEC Form 4 filings
Magnite, Inc. Latest Insider Trading Activity
The most recent employee insider trading activity for Magnite, Inc. was on October 12, 2026, when Caine Paul (Director) reported a sale of 12,500 shares at $25.29 per share. For the past 306 days, MGNI has had 13 total insider transactions represented in the displayed records. This page shows up to the 10 most recent SEC Form 4 filing records on a 6-hour delay. Sign up for real-time updates and access to 20 years of historic insider trading data.
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| Ticker | Filing Date | Transaction Date | Company | Insider | Title | Transaction | Trade Count | Shares | Avg. Price | Total Value | Position Size Change | SEC Filing |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 10b5-1: Scheduled Form 4 Transaction MGNI | 2026-10-14 | 2026-10-12 | Magnite, Inc. | Caine Paul | Director | Sell | 1 | 12,500 | $25.29 | $316,125.00 | 9.10% | View Filing |
| 10b5-1: Scheduled Form 4 Transaction MGNI | 2026-09-18 | 2026-09-17 | Magnite, Inc. | Knopper Douglas S | Director | Sell | 1 | 37,337 | $26.28 | $981,216.36 | 42.20% | View Filing |
| 10b5-1: Scheduled Form 4 Transaction MGNI | 2026-09-16 | 2026-09-14 | Magnite, Inc. | Buonasera David | CHIEF TECHNOLOGY OFFICER | Sell | 1 | 1,165 | $24.00 | $27,960.00 | 0.47% | View Filing |
| Explained M/S: sale activity tied to share conversions or derivative-related share movements. MGNI | 2026-09-16 | 2026-09-14 | Magnite, Inc. | Spillane Robert F | Director | Sell | 1 | 10,363 | $23.76 | $246,224.88 | 15.22% | View Filing |
| 10b5-1: Scheduled Form 4 Transaction MGNI | 2026-09-11 | 2026-09-11 | Magnite, Inc. | Evans Katie Seitz | President, Product & Operations | Sell | 1 | 13,997 | $24.00 | $335,928.00 | 3.07% | View Filing |
| 10b5-1: Scheduled Form 4 Transaction MGNI | 2026-09-11 | 2026-09-10 | Magnite, Inc. | Saltz Aaron | CHIEF LEGAL OFFICER | Sell | 1 | 40,000 | $23.41 | $936,400.00 | 15.13% | View Filing |
| 10b5-1: Scheduled Form 4 Transaction MGNI | 2026-09-10 | 2026-09-09 | Magnite, Inc. | Evans Katie Seitz | President, Product & Operations | Sell | 2 | 43,385 | $23.59 | $1,023,300.55 | 4.49% | View Filing |
| 10b5-1: Scheduled Form 4 Transaction MGNI | 2026-06-18 | 2026-06-17 | Magnite, Inc. | Buckley Sean Patrick | Officer | Sell | 1 | 19,233 | $19.00 | $365,427.00 | 4.90% | View Filing |
| 10b5-1: Scheduled Form 4 Transaction MGNI | 2026-06-17 | 2026-06-17 | Magnite, Inc. | Buonasera David | CHIEF TECHNOLOGY OFFICER | Sell | 3 | 13,699 | $18.03 | $246,934.00 | 1.58% | View Filing |
| 10b5-1: Scheduled Form 4 Transaction MGNI | 2025-12-19 | 2025-12-17 | Magnite, Inc. | Soroca Adam Lee | CHIEF PRODUCT OFFICER | Sell | 1 | 16,656 | $17.00 | $283,152.00 | 4.86% | View Filing |
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Alerts are based on public SEC filings and are provided for informational purposes only; they do not constitute financial advice.