Company facts
- Headquarters
- New York, New York
- Most recent report
- 8-K, filed Sep 21, 2026
- Incorporated
- Delaware
- Filings on record
- 1,007+ filings
- On EDGAR
- CIK 1595974
- Fiscal year ends
- December
- Filer status
- Large accelerated filer
Financials 8 of 32
News 8 of 81
Prospectuses and Registrations 8
- S-8 Registration statement for an employee plan Mar 2, 2022
- POS AM Post-effective amendment to a registration Jun 23, 2021
- 25 Jun 8, 2020
- S-8 Registration statement for an employee plan Apr 9, 2020
- 424B3 Prospectus supplement for an offering Mar 23, 2020
- 424B3 Prospectus supplement for an offering Feb 13, 2020
- S-4/A Registration statement for a merger or exchange, amended Feb 7, 2020
- S-4 Registration statement for a merger or exchange Jan 30, 2020
Proxies 8 of 17
- DEFA14A Extra proxy material Apr 21, 2026
- DEF 14A Proxy statement for a shareholder vote Apr 21, 2026
- DEFA14A Extra proxy material Apr 16, 2025
- DEF 14A Proxy statement for a shareholder vote Apr 16, 2025
- DEF 14A Proxy statement for a shareholder vote Apr 26, 2024
- DEFA14A Extra proxy material Apr 26, 2024
- DEFA14A Extra proxy material Apr 28, 2023
- DEF 14A Proxy statement for a shareholder vote Apr 28, 2023
Ownership 8 of 846
- 4 Insider reported a trade Sep 18, 2026
- 4 Insider reported a trade Sep 18, 2026
- 144 Notice of a proposed sale of restricted stock Sep 17, 2026
- 144 Notice of a proposed sale of restricted stock Sep 17, 2026
- 4 Insider reported a trade Sep 16, 2026
- 4 Insider reported a trade Sep 16, 2026
- 144 Notice of a proposed sale of restricted stock Sep 14, 2026
- 144 Notice of a proposed sale of restricted stock Sep 14, 2026
Other 8 of 23
- ARS Annual report sent to shareholders Apr 21, 2026
- ARS Annual report sent to shareholders Apr 16, 2025
- ARS Annual report sent to shareholders Apr 26, 2024
- UPLOAD Comment letter from SEC staff Jun 14, 2023
- CORRESP Reply to SEC staff May 31, 2023
- ARS Annual report sent to shareholders May 8, 2023
- UPLOAD Comment letter from SEC staff May 5, 2023
- EFFECT Notice that a registration became effective Jun 24, 2021
Everything here comes from Magnite, Inc.'s own filings on SEC EDGAR. The filing list is rechecked every hour.