Magnite, Inc. (MGNI)
Nasdaq: MGNI · Services-Computer Programming, Data Processing, Etc. · New York, NY · filing with the SEC since 2014
Grade5.6
◀ Past 5.1● Present 6.0▶ Future 5.6
Who runs Magnite, Inc.
Officers and directors as they report to the SEC on Forms 3, 4 and 5, named as filedChief executive, as filed
Barrett Michael G.
CEO. First filing Mar 2017, latest Aug 18, 2026, 33 filings in all.
Officers reporting now
9
of 17 people with a filing in the last fifteen months
Directors reporting now
8
35 people on the record since 2014
Officerssales are open-market, Nov 12, 2025 to Nov 12, 2026
| Name | Title as filed | First filing | Latest filing | Sales, 12 months |
|---|---|---|---|---|
| Gephart Brian | CHIEF FINANCIAL OFFICER | Jul 2021 | Nov 12, 2026 | 2 · $400,000 |
| Buonasera David | CHIEF TECHNOLOGY OFFICER | Feb 2023 | Nov 12, 2026 | 15 · $1.0M |
| Saltz Aaron | CHIEF LEGAL OFFICER | Apr 2020 | Nov 12, 2026 | 2 · $1.2M |
| Sullivan Haas | CHIEF ACCOUNTING OFFICER | Oct 2026 | Nov 12, 2026 | 1 · $100,000 |
| Evans Katie Seitz | See Remarks | Sep 2020 | Nov 12, 2026 | 5 · $2.6M |
| Buckley Sean Patrick | See Remarks | Jun 2021 | Nov 6, 2026 | 9 · $3.1M |
| Barrett Michael G. | CEO | Mar 2017 | Aug 18, 2026 | 5 · $13.6M |
| Day David | CHIEF FINANCIAL OFFICER | Apr 2014 | Aug 18, 2026 | none |
| Soroca Adam Lee | CHIEF PRODUCT OFFICER | Dec 2017 | Feb 18, 2026 | 3 · $700,000 |
Directorssales are open-market, Nov 12, 2025 to Nov 12, 2026
| Name | Role | First filing | Latest filing | Sales, 12 months |
|---|---|---|---|---|
| Rossman James | director | Apr 2020 | Nov 12, 2026 | 1 · $1.4M |
| Caine Paul | director | Apr 2020 | Oct 14, 2026 | 6 · $1.0M |
| Knopper Douglas S | director | Apr 2020 | Sep 18, 2026 | 4 · $2.7M |
| Spillane Robert F | director | Apr 2014 | Sep 16, 2026 | 3 · $600,000 |
| Harden Sarah Patricia | director | Jul 2019 | Aug 28, 2026 | 2 · $1.2M |
| Lam Rachel | director | Apr 2020 | Aug 12, 2026 | 1 · $200,000 |
| Pearson David T. | director | Mar 2022 | Jun 10, 2026 | 1 · $200,000 |
| Yu Diane | director | Mar 2022 | Jun 10, 2026 | none |
Earlier names on the record18, newest filing first
Frankenberg Robert J · director · last filing Jun 2023Troe Lisa L · director · last filing Jun 2023Dove James Allen · officer · last filing Aug 2022Prusz Joseph R · officer · last filing Feb 2022Hughes Shawna · officer · last filing May 2021Kershaw Thomas · officer · last filing May 2021Filip Eve · officer · last filing Jul 2020Tuller Blima · officer · last filing Jun 2020Addante Frank · officer · last filing Apr 2020Zagorski Mark · officer · last filing Apr 2020Feldman Jonathan · officer · last filing Apr 2020Coleman Lewis W · director · last filing Apr 2020Mandal Sumant · director · last filing Feb 2019Copple Brian W · officer · last filing May 2018Raifman Gregory R · officer · last filing May 2017Patz Harry Jr · officer · last filing Jan 2017Richter James Neal · officer · last filing Nov 2016Tappin Todd L · officer · last filing May 2016
A person is listed as reporting now after a filing in the last fifteen months. The record shows when someone last filed; it does not say why they stopped. Each name links to the filings on sec.gov.