List of insiders holdings for MAGNITE INC.:
- Shares directly owned by the insider.
- Shares indirectly owned by the insider.
- Total shares owned by the insider (sum of shares directly and indirectly owned).
- Total market value if available.
- Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
- Peter Lynch
What is insider trading>>
| # | Insider Holder Name | Report Date Time | Shares Owned Directly Indirectly | Total Shares Owned | Filing |
| 1 | Clearstone Venture Management III L.L.C. CLEARSTONE VENTURE PARTNERS III-A LP Clearstone Venture Partners III-B a Delaware Multiple Series LLC 10% Owner | 2019-02-05 17:02:14 | 2,567,227 0 | 2,567,227 | Form 13G |
| 2 | Mandal Sumant Director | 2019-02-26 17:22:51 | 46,734 2,057,918 | 2,104,652 | Form 4 |
| 3 | Zagorski Mark President & COO | 2020-04-03 17:12:28 | 1,652,321 0 | 1,652,321 | Form 4 |
| 4 | MOHN JARL Director | 2014-04-11 21:45:13 | 148,633 1,167,550 | 1,316,183 | Form 4 |
| 5 | TAPPIN TODD L CFO & COO | 2016-05-26 19:35:27 | 668,779 0 | 668,779 | Form 4 |
| 6 | Kershaw Thomas Chief Technology Officer | 2021-05-19 19:15:05 | 473,763 0 | 473,763 | Form 4 |
| 7 | Soroca Adam Lee CHIEF PRODUCT OFFICER | 2025-09-04 17:00:27 | 443,050 0 | 443,050 | Form 4 |
| 8 | RAIFMAN GREGORY R Director | 2017-05-17 20:37:12 | 0 420,459 | 420,459 | Form 4 |
| 9 | Evans Katie Seitz President, Operations | 2025-08-29 16:30:08 | 394,089 0 | 394,089 | Form 4 |
| 10 | Day David CHIEF FINANCIAL OFFICER | 2025-08-20 16:30:26 | 382,106 0 | 382,106 | Form 4 |
| 11 | Prusz Joseph R Chief Revenue Officer, DV+ | 2022-02-16 18:22:12 | 311,083 0 | 311,083 | Form 4 |
| 12 | Buckley Sean Patrick President, Revenue | 2025-09-10 17:00:08 | 287,193 0 | 287,193 | Form 4 |
| 13 | COPPLE BRIAN W General Counsel and Secretary | 2018-05-17 20:42:41 | 0 277,524 | 277,524 | Form 4 |
| 14 | BARRETT MICHAEL G. CEO | 2025-08-20 16:30:23 | 249,857 0 | 249,857 | Form 4 |
| 15 | Buonasera David CHIEF TECHNOLOGY OFFICER | 2025-09-04 17:00:28 | 238,629 0 | 238,629 | Form 4 |
| 16 | Lam Rachel Director | 2025-08-14 16:26:10 | 226,822 0 | 226,822 | Form 4 |
| 17 | Saltz Aaron CHIEF LEGAL OFFICER | 2025-09-19 16:15:08 | 215,079 0 | 215,079 | Form 4 |
| 18 | Filip Eve See remarks | 2020-07-31 18:33:26 | 213,207 0 | 213,207 | Form 4 |
| 19 | Dove James Allen Chief Technology Officer | 2022-08-17 16:21:33 | 191,071 0 | 191,071 | Form 4 |
| 20 | Richter James Neal Chief Technology Officer | 2016-11-03 17:45:52 | 183,115 0 | 183,115 | Form 4 |
| 21 | Hughes Shawna Chief Accounting Officer | 2021-05-19 19:51:48 | 178,129 0 | 178,129 | Form 4 |
| 22 | Knopper Douglas S Director | 2025-06-06 17:50:25 | 160,115 0 | 160,115 | Form 4 |
| 23 | Caine Paul Director | 2025-09-19 18:13:41 | 158,603 0 | 158,603 | Form 4 |
| 24 | Tuller Blima Chief Accounting Officer | 2020-06-05 16:53:18 | 155,402 0 | 155,402 | Form 4/A |
| 25 | Harden Sarah Patricia Director | 2025-06-06 17:49:23 | 149,939 0 | 149,939 | Form 4 |
| 26 | FRANKENBERG ROBERT J Director | 2023-06-16 16:27:47 | 119,090 0 | 119,090 | Form 4 |
| 27 | TROE LISA L Director | 2023-06-12 16:28:46 | 114,218 0 | 114,218 | Form 4 |
| 28 | Patz Harry Jr Chief Revenue Officer | 2017-01-05 17:39:20 | 100,000 0 | 100,000 | Form 4 |
| 29 | Rossman James Director | 2025-06-20 16:27:26 | 93,679 0 | 93,679 | Form 4 |
| 30 | Gephart Brian CHIEF ACCOUNTING OFFICER | 2025-09-05 17:00:05 | 92,898 0 | 92,898 | Form 4 |
| 31 | PEARSON DAVID T. Director | 2025-06-06 17:55:08 | 75,969 0 | 75,969 | Form 4 |
| 32 | Yu Diane Director | 2025-08-27 16:30:06 | 67,481 0 | 67,481 | Form 4 |
| 33 | Spillane Robert F Director | 2025-06-12 17:56:08 | 66,417 0 | 66,417 | Form 4 |
| 34 | NEWS CORP 10% Owner | 2017-02-10 16:18:27 | 0 0 | 0 | Form 13G |
| 35 | COLEMAN LEWIS W Director | 2020-04-03 17:00:02 | 0 0 | 0 | Form 4 |
| 36 | Feldman Jonathan Co-General Counsel & Secretary | 2020-04-03 16:59:39 | 0 0 | 0 | Form 4 |
| 37 | ADDANTE FRANK Director | 2020-04-03 16:59:17 | 0 0 | 0 | Form 4 |
| 38 | MAYFIELD XII A DELAWARE L P Mayfield XII Management L.L.C. MAYFIELD ASSOCIATES FUND XII Mayfield Principals Fund XII Beck James T Chaddha Navin VASAN ROBERT T 10% Owner | 2016-01-22 16:17:06 | 0 0 | 0 | Form 13G |