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Magnite Inc SEC Filings

MGNI NASDAQ

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.

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Magnite, Inc. (MGNI) director Paul Caine sold 7,500 shares of common stock on 08/25/2025 at $25.00 per share under a Rule 10b5-1 trading plan adopted on 08/15/2024. After the reported sale, the filing shows Mr. Caine beneficially owns 171,103 shares, reported in a Form 4 filed as an individual reporting person. The transaction is coded S(1) indicating a sale pursuant to a pre-established trading arrangement. The Form 4 was executed by attorney-in-fact Aaron Saltz on 08/26/2025.

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Magnite, Inc. (MGNI) insider sale disclosed on Form 4. The reporting person, Katie Seitz Evans (President, Operations), sold 8,345 shares of common stock on 08/25/2025 at $26 per share under a Rule 10b5-1 trading plan that was adopted on March 6, 2025. After the sale she beneficially owned 415,598 shares, reported as direct ownership. The Form 4 was signed by attorney-in-fact Aaron Saltz on 08/26/2025. The filing documents a planned disposition under an established trading plan rather than an ad hoc transaction.

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Magnite, Inc. (MGNI) insider intends to sell 20,000 shares on NASDAQ through Morgan Stanley Smith Barney LLC, representing an aggregate market value of $504,616. The shares to be sold are a small fraction of the company's reported outstanding shares of 142,399,305, so the transaction size is modest relative to the company.

The securities were originally acquired as restricted stock: 13,743 shares on 06/12/2024 and 6,257 shares on 06/07/2023, with payment dates matching acquisition dates. No other sales by the reporting person in the past three months are reported, and the filer certifies no undisclosed material adverse information.

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Magnite, Inc. (MGNI) reported a proposed sale of 12,500 common shares to be executed through Morgan Stanley Smith Barney on 08/25/2025, with an aggregate market value of $302,000. The shares were originally acquired as restricted stock units on 06/01/2018. The filing lists total outstanding shares of 142,399,305, indicating the proposed sale represents a very small fraction of the company.

The filing also discloses recent 10b5-1 plan sales by the same person totaling 15,000 shares in the past three months, generating gross proceeds of $329,064. The filer affirms no undisclosed material adverse information and references reliance on a trading plan where applicable.

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Form 144 notice for Magnite, Inc. (MGNI): This filing reports a proposed sale of 8,345 common shares valued at $216,970.00, to be sold on 08/25/2025 on NASDAQ through Morgan Stanley Smith Barney LLC. The shares were acquired as restricted stock from the issuer on 04/01/2021. The filer previously sold common shares this year: 10,487 shares on 08/18/2025 for $250,149.56, 24,495 shares on 06/30/2025 for $571,164.00, 20,000 shares on 06/16/2025 for $370,000.00, and 35,000 shares on 06/05/2025 for $607,695.50. The filer certifies no undisclosed material adverse information.

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Magnite insider sale to cover taxes: Chief Accounting Officer Brian Gephart reported a non-discretionary sale of 2,961 shares of Magnite, Inc. (MGNI) on 08/18/2025 at $23.85 per share to satisfy tax withholding tied to the settlement of vested Restricted Stock Units. After the transaction, the reporting person beneficially owned 120,569 shares, held directly. The filing states the sale was mandated by the issuer's sell-to-cover election and was not a discretionary trade by the reporting person. The Form 4 was executed by an attorney-in-fact and contains no derivative transactions or other purchases.

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Day David, reported as Chief Financial Officer of Magnite, Inc. (MGNI), sold 13,366 shares of common stock on 08/18/2025 at a price of $23.85 per share. The filing states the sale was executed to satisfy the reporting persons tax withholding obligation arising from the settlement of vested Restricted Stock Units and was a mandatory "sell to cover" transaction elected by the issuer. After the sale, the reporting person beneficially owns 382,106 shares, held directly.

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Adam Lee Soroca, Chief Product Officer of Magnite, Inc. (MGNI), reported two non-discretionary sales of company common stock on 08/18/2025 and 08/19/2025. On 08/18/2025 he sold 9,700 shares at $23.85 per share to satisfy tax withholding from vested restricted stock units. On 08/19/2025 he sold 10,579 shares at a weighted average price of $23.47 pursuant to a Rule 10b5-1 trading plan adopted on March 7, 2025. The filings show beneficial ownership of 356,972 shares after the 08/18 sale and 346,393 shares after the 08/19 sale. The Form 4 was signed via attorney-in-fact on 08/20/2025.

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Katie Seitz Evans, President, Operations at Magnite, Inc. (MGNI), reported a non-discretionary sale of company stock on 08/18/2025. She disposed of 10,487 shares of common stock at $23.85 per share as part of a "sell to cover" to satisfy tax withholding obligations from the settlement of vested restricted stock units. After the transaction she beneficially owned 423,943 shares.

The filing notes the sale was mandated by the issuer's election to require withholding via sale and was not a discretionary trade by the reporting person. The Form 4 was signed on behalf of the reporting person by an attorney-in-fact.

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Magnite insider sale to cover taxes. Aaron Saltz, Chief Legal Officer of Magnite, sold 5,770 shares of common stock on 08/18/2025 at $23.85 per share to satisfy tax withholding obligations associated with vested restricted stock units. The sale was a company-mandated "sell-to-cover" and not a discretionary trade by the reporting person. After the transaction, Saltz beneficially owns 242,184 shares, held directly. The Form 4 discloses routine compliance with tax withholding related to equity compensation and provides transparent reporting of the officer's post-transaction ownership.

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FAQ

What is the current stock price of Magnite (MGNI)?

The current stock price of Magnite (MGNI) is $25.14 as of August 26, 2025.

What is the market cap of Magnite (MGNI)?

The market cap of Magnite (MGNI) is approximately 3.6B.
Magnite Inc

NASDAQ:MGNI

MGNI Rankings

MGNI Stock Data

3.61B
140.33M
1.4%
105.35%
10.69%
Advertising Agencies
Services-computer Programming, Data Processing, Etc.
United States
NEW YORK