MAGNITE, INC. — Board/Management Information 2026

Apr 10, 2026

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 OR 15(d) of the Securities Exchange Act of 1934

April 7, 2026

Date of Report (Date of earliest event reported)

MAGNITE, INC.

(Exact name of registrant as specified in its charter)

Delaware	001-36384	20-8881738
(State or other jurisdiction of incorporation)	(Commission File Number)	(IRS Employer Identification No.)
1250 Broadway, 9th Floor
New York, New York 10001
(Address of principal executive offices, including zip code)
( 212 ) 243-2769
(Registrant’s telephone number, including area code)
Not applicable
(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐	Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
☐	Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
☐	Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
☐	Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Common stock, par value $0.00001 per share	MGNI	Nasdaq Global Select Market

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§ 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§ 240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 5.02. Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

On April 7, 2026, Magnite, Inc. (the “Company”) announced that Adam Soroca would cease serving as the Company’s Chief Product Officer, effective April 8, 2026. Mr. Soroca will remain employed with the Company as an advisor through May 15, 2026. In connection with his termination of employment, Mr. Soroca will be entitled to severance benefits in accordance with the terms of the Executive Severance and Vesting Acceleration Agreement, between the Company and Mr. Soroca, as further described in the Company’s Proxy Statement for the 2025 Annual Meeting of Stockholders, filed with the SEC on April 16, 2025.

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

/s/ Aaron Saltz
Aaron Saltz
Chief Legal Officer