Form SCHEDULE 13D/A MediaAlpha, Inc. Filed by: Nonko Eugene

August 26, 2026 9:53 PM EDT





If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of §§ 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box.

The information required on the remainder of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act of 1934 (“Act”) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).




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SCHEDULE 13D




Comment for Type of Reporting Person:
* The Reporting Person may be deemed to be part of a group pursuant to that certain Stockholders Agreement described in Item 6 of the Schedule 13D but each Reporting Person disclaims beneficial ownership of the Common Stock held by the other members of the group. ** Represents (i) 292,709 shares of Class A Common Stock (as defined below) directly owned by Eugene Nonko, (ii) 935,361 shares of Class A Common Stock owned by O.N.E. Holdings, LLC, and (iii) 3,970,051 shares of Class B Common Stock (which, along with corresponding Class B-1 units, may from time to time be exchanged on a one-for-one basis for Class A Common Stock) owned by O.N.E. Holdings, LLC. Determination of the percentage beneficial ownership of the Reporting Person is based on 52,975,711 shares of Class A Common Stock reported to be outstanding as of July 24, 2026, as disclosed in MediaAlpha, Inc.'s Quarterly Report on Form 10-Q for the period ended June 30, 2026 filed with the SEC on July 29, 2026.


SCHEDULE 13D




Comment for Type of Reporting Person:
* The Reporting Person may be deemed to be part of a group pursuant to that certain Stockholders Agreement described in Item 6 of the Schedule 13D but each Reporting Person disclaims beneficial ownership of the Common Stock held by the other members of the group. ** Represents (i) 935,361 shares of Class A Common Stock and (ii) 3,970,051 shares of Class B Common Stock (which, along with corresponding Class B-1 units, may from time to time be exchanged on a one-for-one basis for Class A Common Stock). Determination of the percentage of beneficial ownership of the Reporting Person is based on 52,975,711 shares of Class A Common Stock reported to be outstanding as of July 24, 2026, as disclosed in MediaAlpha, Inc.'s Quarterly Report on Form 10-Q for the period ended June 30, 2026 filed with the SEC on July 29, 2026.


SCHEDULE 13D


 
Eugene Nonko
 
Signature:/s/ Eugene Nonko
Name/Title:Eugene Nonko
Date:08/26/2026
 
O.N.E. Holdings, LLC
 
Signature:/s/ Eugene Nonko
Name/Title:Eugene Nonko
Date:08/26/2026


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