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
ARS Annual report to shareholders Apr 21, 2026 Dec 31, 2025
10-K Annual report Feb 25, 2026 Dec 31, 2025
ARS Annual report to shareholders Apr 16, 2025 Dec 31, 2024
10-K Annual report Feb 26, 2025 Dec 31, 2024
ARS Annual report to shareholders Apr 26, 2024 Dec 31, 2023
10-K Annual report Feb 28, 2024 Dec 31, 2023
ARS Annual report to shareholders May 8, 2023 Dec 31, 2022
10-K Annual report Feb 22, 2023 Dec 31, 2022
10-K Annual report Feb 23, 2022 Dec 31, 2021
10-K/A Amended annual report May 10, 2021 Dec 31, 2020
10-K Annual report Feb 25, 2021 Dec 31, 2020
10-K Annual report Feb 27, 2020 Dec 31, 2019
10-K Annual report Feb 27, 2019 Dec 31, 2018

Showing 13 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)

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Source: SEC EDGAR filings. This is company-reported data, not investment advice.