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.
Magnite, Inc. filings document the regulatory record of an operating ad technology company focused on sell-side programmatic advertising. Form 8-K reports furnish quarterly and annual results, including revenue, contribution ex-TAC, CTV and DV+ metrics, adjusted EBITDA, cash flow measures, outlook commentary and stock buyback disclosures.
The company’s proxy materials cover annual meeting matters, director elections, executive compensation and stockholder voting procedures. Other filings document executive transitions, material agreements, Regulation FD disclosures and risk-factor updates, including litigation and competitive risks tied to the digital advertising ecosystem.
Morgan Stanley Smith Barney LLC Executive Financial Services submitted a Form 144 notice to sell 10,000 shares of Common Stock of the company (symbol MGNI). The filing lists restricted stock lots dated 06/12/2024 (7,166 shares) and 06/05/2025 (2,834 shares). The entry shows a filing-related date of 05/19/2026 and identifies NASDAQ as the trading market.
MGNI (Morgan Innovations) reported proposed insider sales via a Form 144 notice. The filing lists proposed sales of 21,529 shares with reported values of $257,486.84 (dated 02/19/2026) and $258,348.00 (dated 02/18/2026). The record also shows multiple restricted stock vesting entries under a registered plan (examples: 10,445 shares vesting 02/15/2023; 2,986 shares vesting 01/30/2025), described as "Services Rendered."
The filing is a notice of proposed resale activity by an affiliate/insider; it does not itself report completed open-market trades or indicate proceeds treatment beyond the reported per-line values.
Magnite, Inc. ownership update: Capital Research Global Investors reports beneficial ownership of 5,020,289 shares, representing 3.5% of Magnite's common stock as of 03/31/2026. The filer states sole voting and dispositive power over the same 5,020,289 shares. The amendment is signed by a Capital Research officer on 05/11/2026.
Magnite reported solid first-quarter 2026 growth led by connected TV (CTV). Revenue reached $164.4 million, up 6% year-over-year. Contribution ex-TAC was $160.9 million, up 10%, with CTV contribution ex-TAC of $82.3 million, up 30% and now just over half of the total. DV+ contribution ex-TAC was $78.6 million, down 5% year-over-year.
The company posted net income of $4.4 million, or $0.03 per diluted share, versus a $9.6 million loss a year ago. Adjusted EBITDA was $42.9 million, up 16%, with a 26.6% Adjusted EBITDA margin, and non-GAAP earnings per share were $0.13. Net cash used in operating activities was $120.8 million, and cash and equivalents declined to $184.6 million.
For Q2 2026, Magnite expects total contribution ex-TAC between $177 million and $181 million, including $90 million to $92 million from CTV. For full-year 2026, it reaffirms contribution ex-TAC growth of at least 11%, mid-teens Adjusted EBITDA growth, and raises its margin target to at least 35.5%, with free cash flow growth targeted in the mid-30% range.
Magnite, Inc. reported higher revenue and returned to profitability for the three months ended March 31, 2026. Revenue rose to $164.4 million from $155.8 million, helped mainly by connected TV (CTV) growth, while the company posted net income of $4.4 million versus a prior-year loss.
CTV revenue reached $85.4 million, or 52% of total revenue, up from $72.5 million. Mobile and desktop revenue declined modestly. Operating income improved to $7.7 million as cost of revenue fell, partly because fewer campaigns were run on a gross (managed service) basis.
Magnite used cash to simplify its capital structure. It repaid the remaining $205.1 million of Convertible Senior Notes at maturity, leaving only its 2024 Term Loan B Facility outstanding with $359.5 million of principal. Cash and cash equivalents decreased to $184.6 million from $553.4 million, driven by negative operating cash flow of $120.8 million and financing outflows including debt repayment and share repurchases.
Magnite Inc. ownership filing reports that FMR LLC (and Abigail P. Johnson via power of attorney) beneficially owns 4,507,418.57 shares of common stock, representing 3.1% of the class. The filing is an amendment (No. 3) to a Schedule 13G/A and lists voting and dispositive powers.
The cover shows sole dispositive power of 4,507,418.57 shares and sole voting power of 4,499,424. The response states this is ownership of 5 percent or less of the class and names FMR LLC’s Boston address.
Magnite Inc ownership filing: Vanguard Capital Management reports beneficial ownership of 7,283,329 shares of Common Stock, representing 5.04% of the class. The filing shows Vanguard has sole dispositive power over the 7,283,329 shares and sole voting power for 1,092,926 shares.
The Schedule 13G states these holdings reflect positions held across Vanguard Capital Management LLC and affiliated business divisions and that no other single person holds over 5% of the class. The filing is signed on 04/30/2026.
Magnite Inc reported that Vanguard Portfolio Management beneficially owns 7,849,870 shares of common stock, representing 5.43% of the class, as disclosed on a Schedule 13G. The filing shows sole voting power of 123,665 shares and sole dispositive power over 7,849,870 shares.
Magnite, Inc. is asking stockholders to vote at its June 8, 2026 virtual annual meeting on four main items: electing three Class III directors through 2029, ratifying Deloitte & Touche LLP as auditor, approving executive pay on an advisory basis, and choosing how often to hold future say‑on‑pay votes.
The board recommends voting for all director nominees, for Deloitte, for executive compensation, and selecting a 1‑year say‑on‑pay frequency. The proxy also highlights 2025 results, including record revenue of $714.0 million, Contribution ex‑TAC of $669.6 million, and Adjusted EBITDA of $232.1 million, along with governance practices such as a majority‑independent board, annual evaluations, and equity‑focused director compensation.