16 insiders reported 210 Form 4 transactions for MAGNITE, INC. (MGNI) over the past 18 months (most recent 2026-09-18). Recent activity: Caine Paul (Director) Sell 7,500 shares, Knopper Douglas S (Director) Sell 37,337 shares, Spillane Robert F (Director) Buy 10,363 shares, Buonasera David (CHIEF TECHNOLOGY OFFICER) Sell 1,165 shares, Spillane Robert F (Director) Sell 10,363 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-09-18 | Caine Paul | Director | Sell | 7,500 | $198,750 |
| 2026-09-18 | Knopper Douglas S | Director | Sell | 37,337 | $981,216 |
| 2026-09-16 | Spillane Robert F | Director | Buy | 10,363 | $53,577 |
| 2026-09-16 | Buonasera David | CHIEF TECHNOLOGY OFFICER | Sell | 1,165 | $27,960 |
| 2026-09-16 | Spillane Robert F | Director | Sell | 10,363 | $246,225 |
| 2026-09-11 | Caine Paul | Director | Sell | 5,000 | $117,650 |
| 2026-09-11 | Evans Katie Seitz | President, Product & Operations | Sell | 13,997 | $335,928 |
| 2026-09-11 | Saltz Aaron | CHIEF LEGAL OFFICER | Sell | 40,000 | $936,400 |
| 2026-09-10 | Evans Katie Seitz | President, Product & Operations | Sell | 11,100 | $260,406 |
| 2026-09-10 | Evans Katie Seitz | President, Product & Operations | Buy | 13,546 | $69,897 |
| 2026-09-10 | Evans Katie Seitz | President, Product & Operations | Sell | 32,285 | $762,895 |
| 2026-09-03 | Buonasera David | CHIEF TECHNOLOGY OFFICER | Sell | 1,043 | $26,075 |
| 2026-09-03 | Buonasera David | CHIEF TECHNOLOGY OFFICER | Sell | 5,371 | $125,789 |
| 2026-08-28 | Harden Sarah Patricia | Director | Sell | 30,550 | $712,120 |
| 2026-08-28 | Harden Sarah Patricia | Director | Sell | 18,436 | $442,464 |
| 2026-08-18 | BARRETT MICHAEL G. | CEO | Sell | 10,404 | $257,291 |
| 2026-08-18 | Caine Paul | Director | Sell | 7,500 | $187,500 |
| 2026-08-18 | Day David | CHIEF FINANCIAL OFFICER | Sell | 14,170 | $350,424 |
| 2026-08-18 | Evans Katie Seitz | President, Product & Operations | Sell | 11,204 | $277,075 |
| 2026-08-18 | Gephart Brian | CHIEF ACCOUNTING OFFICER | Sell | 3,789 | $93,702 |
| 2026-08-18 | Saltz Aaron | CHIEF LEGAL OFFICER | Sell | 5,627 | $139,156 |
| 2026-08-18 | Buckley Sean Patrick | President, Revenue & Market Strategy | Sell | 11,715 | $289,712 |
| 2026-08-18 | Buonasera David | CHIEF TECHNOLOGY OFFICER | Sell | 8,102 | $200,362 |
| 2026-08-18 | Buckley Sean Patrick | President, Revenue & Market Strategy | Sell | 8,271 | $201,068 |
| 2026-08-18 | Buckley Sean Patrick | President, Revenue & Market Strategy | Sell | 2,759 | $68,975 |
来源：SEC Form 4 申报文件 · 截至 2026-09-18