MediaAlpha: Nonko, O.N.E propose $9.34M share sale

The past-three-month sales table includes reported transactions from August 3 through October 28, 2026.

Available on EDGAR 11/02/2026 - 05:36 PM EST Accepted by SEC EDGAR 11/02/2026 - 05:33 PM EST Learn about SEC filing dates

Rhea-AI Filing Summary

MediaAlpha, Inc. (MAX) director Eugene Nonko and O.N.E HOLDINGS LLC are named in a Rule 144 notice listing 632,572 common shares for sale through Charles Schwab & Co., Inc., at an aggregate market value of $9,336,763 and an approximate sale date of November 2, 2026. The securities section lists 451,479 shares described as a capital contribution dated May 15, 2022, and 181,093 shares described as a restricted stock lapse dated April 30, 2023. A remark says shares in the notice may be acquired and sold over various dates.

Key Figures

Shares listed for sale: 632,572 shares Aggregate market value: $9,336,763 Shares outstanding: 50,903,805 shares +2 more

5 metrics

Shares listed for sale 632,572 shares Common shares; approximate sale date November 2, 2026

Aggregate market value $9,336,763 Shares listed for sale

Shares outstanding 50,903,805 shares Number shown in the securities information

Capital contribution shares 451,479 shares Dated May 15, 2022

Restricted stock lapse shares 181,093 shares Dated April 30, 2023

Key Terms

Rule 144, Capital Contribution, Restricted Stock Lapse

3 terms

Rule 144 regulatory

"required by paragraph (e) of Rule 144"

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

Capital Contribution financial

"Capital Contribution"

An owner or investor putting money or assets into a company to fund operations, growth, or shore up the balance sheet rather than lending it as a loan. Think of it like a homeowner investing cash to renovate a house: it strengthens the property’s value and changes how future gains are shared. For investors, capital contributions affect company stability, ownership stakes and potential returns.

Restricted Stock Lapse financial

"Restricted Stock Lapse - See Remarks"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many MediaAlpha (MAX) shares are listed for sale?

The notice lists 632,572 common shares for sale by Eugene Nonko and O.N.E HOLDINGS LLC, with an aggregate market value of $9,336,763 and an approximate sale date of November 2, 2026.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001830016
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	MediaAlpha, Inc.
SEC File Number	001-39671
Address of Issuer	700 SOUTH FLOWER STREET SUITE 640 LOS ANGELES CALIFORNIA 90017
Phone	619-393-9368
Name of Person for Whose Account the Securities are To Be Sold	Nonko Eugene
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Director

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Charles Schwab & Co., Inc. 3000 Schwab Way Westlake TX 76262	632572	9336763.00	50903805	11/02/2026	NYSE

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	05/15/2022	Capital Contribution	MediaAlpha, Inc.			451479	05/15/2022	NA
Common	04/30/2023	Restricted Stock Lapse - See Remarks	MediaAlpha, Inc.			181093	04/30/2023	Equity Compensation

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
Eugene Nonko 700 SOUTH FLOWER STREET, SUITE 640 LOS ANGELES CA 90017	MediaAlpha, Inc	08/03/2026	11487	143580.00
Eugene Nonko 700 SOUTH FLOWER STREET, SUITE 640 LOS ANGELES CA 90017	MediaAlpha, Inc	08/04/2026	10445	130165.00
Eugene Nonko 700 SOUTH FLOWER STREET, SUITE 640 LOS ANGELES CA 90017	MediaAlpha, Inc	08/05/2026	10445	128493.00
Eugene Nonko 700 SOUTH FLOWER STREET, SUITE 640 LOS ANGELES CA 90017	MediaAlpha, Inc	08/10/2026	11487	154996.00
Eugene Nonko 700 SOUTH FLOWER STREET, SUITE 640 LOS ANGELES CA 90017	MediaAlpha, Inc	08/11/2026	11487	152444.00
Eugene Nonko 700 SOUTH FLOWER STREET, SUITE 640 LOS ANGELES CA 90017	MediaAlpha, Inc	08/12/2026	11487	147155.00
Eugene Nonko 700 SOUTH FLOWER STREET, SUITE 640 LOS ANGELES CA 90017	MediaAlpha, Inc	08/17/2026	11487	146935.00
Eugene Nonko 700 SOUTH FLOWER STREET, SUITE 640 LOS ANGELES CA 90017	MediaAlpha, Inc	08/18/2026	11487	148050.00
Eugene Nonko 700 SOUTH FLOWER STREET, SUITE 640 LOS ANGELES CA 90017	MediaAlpha, Inc	08/19/2026	11487	151845.00
Eugene Nonko 700 SOUTH FLOWER STREET, SUITE 640 LOS ANGELES CA 90017	MediaAlpha, Inc	08/24/2026	11487	149209.00
Eugene Nonko 700 SOUTH FLOWER STREET, SUITE 640 LOS ANGELES CA 90017	MediaAlpha, Inc	08/25/2026	11487	150890.00
Eugene Nonko 700 SOUTH FLOWER STREET, SUITE 640 LOS ANGELES CA 90017	MediaAlpha, Inc	08/26/2026	10445	131128.00
Eugene Nonko 700 SOUTH FLOWER STREET, SUITE 640 LOS ANGELES CA 90017	MediaAlpha, Inc	08/31/2026	10445	131627.00
Eugene Nonko 700 SOUTH FLOWER STREET, SUITE 640 LOS ANGELES CA 90017	MediaAlpha, Inc	09/01/2026	10445	129609.00
Eugene Nonko 700 SOUTH FLOWER STREET, SUITE 640 LOS ANGELES CA 90017	MediaAlpha, Inc	09/02/2026	10445	127822.00
Eugene Nonko 700 SOUTH FLOWER STREET, SUITE 640 LOS ANGELES CA 90017	MediaAlpha, Inc	09/08/2026	9213	107804.00
Eugene Nonko 700 SOUTH FLOWER STREET, SUITE 640 LOS ANGELES CA 90017	MediaAlpha, Inc	09/09/2026	9213	105556.00
Eugene Nonko 700 SOUTH FLOWER STREET, SUITE 640 LOS ANGELES CA 90017	MediaAlpha, Inc	09/10/2026	9213	106851.00
Eugene Nonko 700 SOUTH FLOWER STREET, SUITE 640 LOS ANGELES CA 90017	MediaAlpha, Inc	09/14/2026	10445	125100.00
Eugene Nonko 700 SOUTH FLOWER STREET, SUITE 640 LOS ANGELES CA 90017	MediaAlpha, Inc	09/15/2026	9213	105810.00
Eugene Nonko 700 SOUTH FLOWER STREET, SUITE 640 LOS ANGELES CA 90017	MediaAlpha, Inc	09/16/2026	9213	103561.00
Eugene Nonko 700 SOUTH FLOWER STREET, SUITE 640 LOS ANGELES CA 90017	MediaAlpha, Inc	09/21/2026	7734	81458.00
Eugene Nonko 700 SOUTH FLOWER STREET, SUITE 640 LOS ANGELES CA 90017	MediaAlpha, Inc	09/22/2026	7734	83364.00
Eugene Nonko 700 SOUTH FLOWER STREET, SUITE 640 LOS ANGELES CA 90017	MediaAlpha, Inc	10/12/2026	7734	78491.00
Eugene Nonko 700 SOUTH FLOWER STREET, SUITE 640 LOS ANGELES CA 90017	MediaAlpha, Inc	10/13/2026	7734	78219.00
Eugene Nonko 700 SOUTH FLOWER STREET, SUITE 640 LOS ANGELES CA 90017	MediaAlpha, Inc	10/14/2026	7734	80263.00
Eugene Nonko 700 SOUTH FLOWER STREET, SUITE 640 LOS ANGELES CA 90017	MediaAlpha, Inc	10/19/2026	9213	105917.00
Eugene Nonko 700 SOUTH FLOWER STREET, SUITE 640 LOS ANGELES CA 90017	MediaAlpha, Inc	10/20/2026	9213	107806.00
Eugene Nonko 700 SOUTH FLOWER STREET, SUITE 640 LOS ANGELES CA 90017	MediaAlpha, Inc	10/21/2026	9213	107136.00
Eugene Nonko 700 SOUTH FLOWER STREET, SUITE 640 LOS ANGELES CA 90017	MediaAlpha, Inc	10/26/2026	9213	108989.00
Eugene Nonko 700 SOUTH FLOWER STREET, SUITE 640 LOS ANGELES CA 90017	MediaAlpha, Inc	10/27/2026	11677	138605.00
Eugene Nonko 700 SOUTH FLOWER STREET, SUITE 640 LOS ANGELES CA 90017	MediaAlpha, Inc	10/28/2026	9213	107121.00

144: Remarks and Signature

Remarks	Shares on this filing may be acquired and sold over various dates. Sold by Eugene Nonko & O.N.E HOLDINGS LLC.
Date of Notice	11/02/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	03/03/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	Eugene Nonko
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)