According to recent filings covering the 90 days ending February 19, 2026, the three most significant insider holders at Magnite are Chief Financial Officer David Day (538.08K shares), President And Operations Katie Seitz Evans (535.47K shares), Chief Technology Officer Thomas Kershaw (473.76K shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| David Day | Chief Financial Officer | 538,076 | 12 Jan, 2026 |
| Katie Seitz Evans | President And Operations | 535,472 | 12 Jan, 2026 |
| Thomas Kershaw | Chief Technology Officer | 473,763 | 19 May, 2021 |
| Michael G. Barrett | Ceo | 435,711 | 12 Jan, 2026 |
| Sean Patrick Buckley | President And Revenue | 429,941 | 12 Jan, 2026 |
| Adam Lee Soroca | Chief Product Officer | 428,887 | 12 Jan, 2026 |
| David Buonasera | Chief Technology Officer | 319,232 | 12 Jan, 2026 |
| Joseph R Prusz | Chief Revenue Officer And Dv+ | 311,083 | 16 Feb, 2022 |
| Aaron Saltz | Chief Legal Officer | 288,404 | 12 Jan, 2026 |
| Rachel Lam | 226,822 | 14 Aug, 2025 | |
| James Allen Dove | Chief Technology Officer | 191,071 | 17 Aug, 2022 |
| Shawna Hughes | Chief Accounting Officer | 178,129 | 19 May, 2021 |
| Douglas S Knopper | 160,115 | 06 Jun, 2025 | |
| Paul Caine | 153,603 | 28 Oct, 2025 | |
| Sarah Patricia Harden | 149,939 | 06 Jun, 2025 | |
| Brian Gephart | Chief Accounting Officer | 128,534 | 05 Jan, 2026 |
| Robert J Frankenberg | 119,090 | 16 Jun, 2023 | |
| Lisa L Troe | 114,218 | 12 Jun, 2023 | |
| James Rossman | 93,679 | 20 Jun, 2025 | |
| David T. Pearson | 75,969 | 06 Jun, 2025 | |
| Diane Yu | 67,481 | 27 Aug, 2025 | |
| Robert F Spillane | 53,917 | 21 Nov, 2025 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 09 Jan, 2026 | Michael G. Barrett | Common Stock | D | 109,742 | $16.17 | 435,711 | D | F |
| 09 Jan, 2026 | Michael G. Barrett | Common Stock | A | 213,750 | $0.00 | 545,453 | D | M |
| 09 Jan, 2026 | David Day | Common Stock | D | 35,169 | $16.17 | 538,076 | D | F |
| 09 Jan, 2026 | David Day | Common Stock | A | 72,675 | $0.00 | 573,245 | D | M |
| 09 Jan, 2026 | Katie Seitz Evans | Common Stock | A | 51,300 | $0.00 | 562,308 | D | M |
| 09 Jan, 2026 | Katie Seitz Evans | Common Stock | D | 26,836 | $16.17 | 535,472 | D | F |
| 09 Jan, 2026 | Adam Lee Soroca | Common Stock | A | 51,300 | $0.00 | 454,217 | D | M |
| 09 Jan, 2026 | Adam Lee Soroca | Common Stock | D | 25,330 | $16.17 | 428,887 | D | F |
| 09 Jan, 2026 | Aaron Saltz | Common Stock | D | 15,026 | $16.17 | 288,404 | D | F |
| 09 Jan, 2026 | Aaron Saltz | Common Stock | A | 28,215 | $0.00 | 303,430 | D | M |
| 09 Jan, 2026 | Sean Patrick Buckley | Common Stock | D | 30,369 | $16.17 | 429,941 | D | F |
| 09 Jan, 2026 | Sean Patrick Buckley | Common Stock | A | 64,125 | $0.00 | 460,310 | D | M |
| 09 Jan, 2026 | David Buonasera | Common Stock | A | 22,935 | $0.00 | 331,562 | D | M |
| 09 Jan, 2026 | David Buonasera | Common Stock | D | 12,330 | $16.17 | 319,232 | D | F |
| 01 Jan, 2026 | Michael G. Barrett | Common Stock | A | 94,044 | $0.00 | 331,703 | D | A |
| 01 Jan, 2026 | David Day | Common Stock | A | 131,661 | $0.00 | 500,570 | D | A |
| 01 Jan, 2026 | Katie Seitz Evans | Common Stock | A | 127,273 | $0.00 | 511,008 | D | A |
| 01 Jan, 2026 | Adam Lee Soroca | Common Stock | A | 76,803 | $0.00 | 402,917 | D | A |
| 01 Jan, 2026 | Brian Gephart | Common Stock | A | 39,185 | $0.00 | 128,534 | D | A |
| 01 Jan, 2026 | Aaron Saltz | Common Stock | A | 65,831 | $0.00 | 275,215 | D | A |