Welcome to our dedicated page for Magnite SEC filings (Ticker: MGNI), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
Programmatic advertising can feel like alphabet soup, and Magnite’s filings are no exception. Revenue splits across CTV, online video, display, and audio, while acquisitions and traffic-acquisition costs add layers of jargon that stretch a single 10-K past 300 pages. If you have ever asked, “How do I find Magnite insider trading Form 4 transactions?” or “Where is the Magnite quarterly earnings report 10-Q filing?”, you already know the challenge.
Stock Titan solves it. Our AI-powered summaries turn dense disclosures into clear takeaways—understanding Magnite SEC documents with AI instead of wrestling with footnotes. Get real-time alerts the moment a Magnite Form 4 insider transactions real-time notice hits EDGAR, see trend charts inside every Magnite earnings report filing analysis, and access side-by-side comparisons of segment margins pulled directly from the latest Magnite annual report 10-K simplified.
All SEC materials are covered: 10-Q quarterly updates, 8-K event notices, definitive proxy statements on executive compensation, and even niche exhibits. Need the story behind a sudden CTV partnership? Click the Magnite 8-K material events explained tile. Curious about option grants? The Magnite executive stock transactions Form 4 table is already filtered. From “Magnite proxy statement executive compensation” to “Magnite SEC filings explained simply,” every document is searchable, summarized, and linked—so analysts can monitor competitive positioning, track insider sentiment, and act on data without sifting through PDFs.
Magnite, Inc. reported Q3 2025 results, showing higher revenue and profitability. Revenue was $179,494, up from the prior year period, and net income reached $20,058. Diluted EPS was $0.13 on 153,166 weighted-average diluted shares. Income from operations was $25,041, reflecting expense control and higher top-line.
Connected TV remained the largest channel at 49% of revenue, with mobile at 36% and desktop at 15%. U.S. revenue was 75% of total. Operating cash flow for the nine months was $107,711, supporting liquidity alongside cash and equivalents of $482,127. Total debt was $556,265, including the 2024 Term Loan B Facility and Convertible Senior Notes; net interest expense declined year over year following loan repricings.
Magnite also completed the Streamr.ai acquisition for $10.1 million, adding developed technology and $5.7 million of goodwill to support SMB-focused CTV tools.
Magnite, Inc. furnished an 8‑K announcing financial results for the quarter ended September 30, 2025. The company issued a press release on November 5, 2025, which is attached as Exhibit 99.1.
The press release is furnished, not filed, and therefore is not subject to Section 18 liabilities and is not incorporated by reference unless specifically referenced.
Magnite (MGNI) insider transaction: A company director reported selling 5,000 shares of common stock on 10/24/2025 at $20 per share, according to a Form 4 filing. Following the sale, the reporting person beneficially owns 153,603 shares, held directly.
The filing notes the sale was executed under a Rule 10b5-1 trading plan adopted on August 15, 2024, which allows pre-scheduled trades. The reporting person filed individually, and the role is disclosed as Director.
The Vanguard Group filed an amended Schedule 13G reporting ownership of 14,654,432 shares of Magnite Inc. common stock, equal to 10.29% of the class. Vanguard reports 0 shares of sole voting power and 972,050 shares of shared voting power, with 13,506,122 shares of sole dispositive power and 1,148,310 shares of shared dispositive power. The filing states these securities are held in the ordinary course of business and not for the purpose of changing or influencing control.
Paul Caine, a director of Magnite, Inc. (MGNI), reported a sale of common stock under a pre-established Rule 10b5-1 plan. On 09/19/2025 the reporting person sold 7,500 shares at $25 per share, reducing his beneficial ownership to 158,603 shares. The filing indicates the trades were executed pursuant to a 10b5-1 trading plan adopted on August 15, 2024, and the Form 4 was signed by an attorney-in-fact on behalf of the reporting person.
Insider sale notice for Magnite, Inc. (MGNI). This Form 144 reports a proposed sale of 7,500 common shares to be executed through Morgan Stanley Smith Barney LLC on 09/19/2025 with an aggregate market value of $179,100. The shares were acquired as restricted stock units on 06/01/2018. The filing notes 142,399,305 shares outstanding for the class. The filer discloses multiple prior 10b5-1 plan sales in the past three months totaling 27,500 shares and gross proceeds shown for each trade. The notice includes the standard representation that the seller is unaware of undisclosed material adverse information.
A MagNite insider, Chief Legal Officer Aaron Saltz, sold 8,522 shares of MAGNITE, INC. (MGNI) on 09/19/2025 at $24.50 per share, reducing his direct holdings to 215,079 shares. The filing states the sale was executed under a Rule 10b5-1 trading plan adopted by the reporting person on March 14, 2025, indicating the transactions were preplanned. No additional derivative transactions or amendments are reported.
Form 144 notice for Magnite, Inc. (MGNI) reports a proposed sale of 8,522 common shares held by Aaron Saltz to be effected on 09/19/2025 through Morgan Stanley Smith Barney LLC on NASDAQ. The shares were acquired as restricted stock from the issuer on 02/15/2023. The filing lists the aggregate market value of the proposed sale as $208,789.00 and notes 142,399,305 shares outstanding for the class. The notice also discloses recent open-market sales by the same person during the past three months on multiple dates with individual gross proceeds shown. The filing includes the standard Rule 144 certification that the seller is not aware of any undisclosed material adverse information.
Insider sale disclosed: Aaron Saltz, Chief Legal Officer of Magnite, Inc. (MGNI), reported a sale of 6,180 shares of common stock on 09/15/2025 at a price of $23.94 per share. After the sale, Mr. Saltz beneficially owned 223,601 shares, held directly. The filing states the sale was executed under a Rule 10b5-1 trading plan adopted March 14, 2025.
Magnite, Inc. has filed a lawsuit against Google LLC seeking financial damages and other remedies after a U.S. District Court found Google engaged in unlawful anticompetitive practices in certain ad tech markets. The company warns this litigation is in early stages, carries uncertain timing and outcome, and could be costly and protracted. Magnite notes Google is a major participant, partner and competitor whose actions could materially affect Magnite's revenue and relationships with publishers and advertisers. The company also updates its risk factors to disclose possible retaliatory actions by Google, diversion of management attention and potential reputational harm.
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