Results of Operations and Financial Condition. On August 5, 2026, Magnite, Inc., or the Company, issued a press release announcing financial results for its fiscal quarter ended June 30, 2026. The full text of the press release issued in connection with the announcement is furnished as Exhibit 99.1 to this Current Report on Form 8-K. The information in this Form 8-K (including Exhibit 99.1) shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amend…

Results of Operations and Financial Condition. On May 6, 2026, Magnite, Inc., or the Company, issued a press release announcing financial results for its fiscal quarter ended March 31, 2026. The full text of the press release issued in connection with the announcement is furnished as Exhibit 99.1 to this Current Report on Form 8-K. The information in this Form 8-K (including Exhibit 99.1) shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended…

CFO — David Day: David Day plans to retire as the Company’s Chief Financial Officer with an orderly transition plan in place.

Chief Product Officer — Adam Soroca: Mr. Soroca ceased serving as Chief Product Officer with no immediate successor named.

Results of Operations and Financial Condition. On February 25, 2026, Magnite, Inc., or the Company, issued a press release announcing financial results for its fiscal quarter and year ended December 31, 2025. The full text of the press release issued in connection with the announcement is furnished as Exhibit 99.1 to this Current Report on Form 8-K. The information in this Form 8-K (including Exhibit 99.1) shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act o…

Results of Operations and Financial Condition. On November 5, 2025, Magnite, Inc., or the Company, issued a press release announcing financial results for its fiscal quarter ended September 30, 2025. The full text of the press release issued in connection with the announcement is furnished as Exhibit 99.1 to this Current Report on Form 8-K. The information in this Form 8-K (including Exhibit 99.1) shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, a…

Risk Factor Update The Company is also providing the following updates to the Risk Factors set forth in the Company's Annual Report on Form 10-K for the fiscal year ended December 31, 2024 and subsequently filed Quarterly Report on Form 10-Q: Risks Related to Our Business, Growth Prospects and Operating Results Our litigation with Google LLC presents potential risks that could adversely affect our business, results of operations and financial condition. On September 16, 2025, we filed a lawsu…

Entry into a Material Definitive Agreement. On August 31, 2025, Magnite, Inc. (the “ Company ”), a Delaware corporation, entered into a First Amendment (“ First Amendment ”) to the Sublease between Zillow Group, Inc. and the Company, dated September 21, 2021 (the “ Sublease ”). The First Amendment, which is expected to be effective as of November 1, 2025, among other things, expands the leased premises under the Sublease to add the entire 8th floor to the leased premises, which prior to the F…

Results of Operations and Financial Condition. On August 6, 2025, Magnite, Inc., or the Company, issued a press release announcing financial results for its fiscal quarter ended June 30, 2025. The full text of the press release issued in connection with the announcement is furnished as Exhibit 99.1 to this Current Report on Form 8-K. The information in this Form 8-K (including Exhibit 99.1) shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amend…

Results of Operations and Financial Condition. On May 7, 2025, Magnite, Inc., or the Company, issued a press release announcing financial results for its fiscal quarter ended March 31, 2025. The full text of the press release issued in connection with the announcement is furnished as Exhibit 99.1 to this Current Report on Form 8-K. The information in this Form 8-K (including Exhibit 99.1) shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended…

Entry into a Material Definitive Agreement On March 18, 2025, Magnite, Inc. (the “ Company ”), a Delaware corporation, entered into that certain Amendment No. 2 (“ Amendment No. 2 ”) to that certain Credit Agreement, dated February 6, 2024, by and among the Company, Morgan Stanley Senior Funding, Inc., as the term facility administrative agent, and Citibank, N.A., as revolving facility administrative agent, collateral agent and swingline lender and the several banks and other financial instit…

Results of Operations and Financial Condition. On February 26, 2025 , Magnite, Inc., or the Company, issued a press release announcing financial results for its fiscal quarter and year ended December 31, 2024. The full text of the press release issued in connection with the announcement is furnished as Exhibit 99.1 to this Current Report on Form 8-K. The information in this Form 8-K (including Exhibit 99.1) shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act…

President, Revenue and President, Operations — Sean Buckley and Katie Evans: The company appointed Sean Buckley as President, Revenue and Katie Evans as President, Operations.

Results of Operations and Financial Condition. On November 7, 2024, Magnite, Inc., or the Company, issued a press release announcing financial results for its fiscal quarter ended September 30, 2024. The full text of the press release issued in connection with the announcement is furnished as Exhibit 99.1 to this Current Report on Form 8-K. The information in this Form 8-K (including Exhibit 99.1) shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, a…

Entry into a Material Definitive Agreement On September 18, 2024, Magnite, Inc. (the “ Company ”), a Delaware corporation, entered into that certain Amendment No. 1 (“ Amendment No. 1 ”) to that certain Credit Agreement, dated February 6, 2024, by and among the Company, Morgan Stanley Senior Funding, Inc., as the term facility administrative agent, and Citibank, N.A., as revolving facility administrative agent, collateral agent and swingline lender and the several banks and other financial in…

Results of Operations and Financial Condition. On August 7, 2024, Magnite, Inc., or the Company, issued a press release announcing financial results for its fiscal quarter ended June 30, 2024. The full text of the press release issued in connection with the announcement is furnished as Exhibit 99.1 to this Current Report on Form 8-K. The information in this Form 8-K (including Exhibit 99.1) shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amend…

Results of Operations and Financial Condition. On May 8, 2024, Magnite, Inc., or the Company, issued a press release announcing financial results for its fiscal quarter ended March 31, 2024. The full text of the press release issued in connection with the announcement is furnished as Exhibit 99.1 to this Current Report on Form 8-K. The information in this Form 8-K (including Exhibit 99.1) shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended…

Results of Operations and Financial Condition. On February 28, 2024 , Magnite, Inc., or the Company, issued a press release announcing financial results for its fiscal quarter and year ended December 31, 2023. The full text of the press release issued in connection with the announcement is furnished as Exhibit 99.1 to this Current Report on Form 8-K. The information in this Form 8-K (including Exhibit 99.1) shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act…

Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant. To the extent required, the information included in

Regulation FD Disclosure. On February 6, 2024, Magnite issued a press release announcing the entry into the Credit Agreement. A copy of the press release is attached hereto as Exhibit 99.1 and incorporated herein by reference. The information in this Item 7.01 (including Exhibit 99.1) is being furnished pursuant to

Entry into a Material Definitive Agreement. On February 6, 2024, Magnite, Inc. (the “Company”) entered into a credit agreement (the “Credit Agreement”) with Morgan Stanley Senior Funding, Inc. as term loan administrative agent and Citibank, N.A. as revolving facility administrative agent and collateral agent, and other lender parties thereto. The Credit Agreement provides for a $365 million seven-year senior secured term loan facility and a $175 million senior secured revolving credit facilit…

Termination of a Material Definitive Agreement. On February 6, 2024, the net proceeds received by the Company under the term loan facility pursuant to the Credit Agreement were used, among other things, to terminate the Existing Credit Agreement and repay in full the outstanding facilities under the Existing Credit Agreement.

Regulation FD Disclosure. On January 22, 2024, Magnite, Inc. (the “Company”) issued a press release announcing that it intends to refinance its $360 million Term Loan B, which matures in April 2028, and its $65.0 million revolving credit facility, which matures in December 2025, with a new senior secured credit facility. A copy of the press release is attached hereto as Exhibit 99.1. As previously disclosed, on August 4, 2023 the Company’s board of directors approved a repurchase plan (the “R…

Results of Operations and Financial Condition. On November 8, 2023, Magnite, Inc., or the Company, issued a press release announcing financial results for its fiscal quarter ended September 30, 2023. The full text of the press release issued in connection with the announcement is furnished as Exhibit 99.1 to this Current Report on Form 8-K. The information in this Form 8-K (including Exhibit 99.1) shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, a…

Results of Operations and Financial Condition. On August 9, 2023, Magnite, Inc., or the Company, issued a press release announcing financial results for its fiscal quarter ended June 30, 2023. The full text of the press release issued in connection with the announcement is furnished as Exhibit 99.1 to this Current Report on Form 8-K. The information in this Form 8-K (including Exhibit 99.1) shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amend…