Magnite, Inc. SEC filings MGNI
Magnite, Inc. has 1,006 filings in SEC EDGAR's recent list, going back to Jan 17, 2019. Its latest annual report, Form ARS, was filed on Apr 21, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Nov 4, 2026, covering the quarter ended Sep 30, 2026. The most recent current report (Form 8-K) was filed on Nov 4, 2026 (results of operations). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| DEFA14A | Additional proxy material | Apr 21, 2026 | — |
| DEF 14A | Proxy statement | Apr 21, 2026 | Jun 8, 2026 |
| DEFA14A | Additional proxy material | Apr 16, 2025 | — |
| DEF 14A | Proxy statement | Apr 16, 2025 | Jun 5, 2025 |
| DEF 14A | Proxy statement | Apr 26, 2024 | Jun 12, 2024 |
| DEFA14A | Additional proxy material | Apr 26, 2024 | — |
| DEFA14A | Additional proxy material | Apr 28, 2023 | — |
| DEF 14A | Proxy statement | Apr 28, 2023 | — |
| DEFA14A | Additional proxy material | Apr 26, 2022 | — |
| DEF 14A | Proxy statement | Apr 26, 2022 | Jun 7, 2022 |
| DEFA14A | Additional proxy material | May 17, 2021 | — |
| DEF 14A | Proxy statement | May 17, 2021 | Jun 28, 2021 |
| DEFA14A | Additional proxy material | Jun 3, 2020 | — |
| DEFA14A | Additional proxy material | May 27, 2020 | — |
| DEF 14A | Proxy statement | May 27, 2020 | Jul 8, 2020 |
| DEFA14A | Additional proxy material | Apr 5, 2019 | — |
| DEF 14A | Proxy statement | Apr 5, 2019 | May 15, 2019 |
Showing 17 filings. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
New to this? Read What Are SEC Filings? 10-K, 10-Q, 8-K and Other Forms Explained.
Company profile
- Industry
- Services-Computer Programming, Data Processing, Etc. (SIC 7370)
- Listed as
- MGNI (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- New York, NY
- SEC filer status
- Large accelerated filer
- SEC CIK
- 1595974
- Former names
- RUBICON PROJECT, INC. (until Jun 30, 2020)
Other Services-Computer Programming, Data Processing, Etc. companies
- Alphabet Inc. GOOGL
- Meta Platforms, Inc. META
- AppLovin Corp APP
- Nebius Group N.V. NBIS
- Bending Spoons S.p.A. BSP
- Zoom Communications, Inc. ZM
- Baidu, Inc. BIDU
- Flutter Entertainment plc FLUT
All 94 Services-Computer Programming, Data Processing, Etc. companies
Source: SEC EDGAR filings. This is company-reported data, not investment advice.