MediaAlpha director Eugene Nonko sells 462K shares

The reported prices are weighted averages for shares sold in multiple transactions, with sales involving both direct holdings and O.N.E. Holdings, LLC.

Available on EDGAR 11/04/2026 - 08:37 PM EST Accepted by SEC EDGAR 11/04/2026 - 08:36 PM EST Learn about SEC filing dates

Rhea-AI Filing Summary

Eugene Nonko, a director of MediaAlpha, Inc. (MAX), reported sales totaling 461,563 Class A shares from November 2 through November 4, 2026. The shares were held directly and through O.N.E. Holdings, LLC. All six sales were effected pursuant to a Rule 10b5-1 trading plan previously adopted by Nonko, primarily to cover taxes resulting from the vesting of RSUs.

Insider Trade Summary 10b5-1

Net Seller: 461,563 shares

Net Sell 6 txns

Insider Nonko Eugene

Role Director

Sold 461,563 shs ($6.92M)

Type	Security	Shares	Price	Value
Sale	Class A Common Stock F1, F4	5,667	$15.2525	$86K
Sale	Class A Common Stock F1, F7	93,279	$15.3646	$1.43M
Sale	Class A Common Stock F1, F3	15,022	$14.9303	$224K
Sale	Class A Common Stock F1, F6	160,185	$15.0445	$2.41M
Sale	Class A Common Stock F1, F2	109,401	$14.7891	$1.62M
Sale	Class A Common Stock F1, F5	78,009	$14.7158	$1.15M

Holdings After Transaction: Class A Common Stock — 654,436 shares (Direct); Class A Common Stock — 458,428 shares (Indirect, By O.N.E. Holdings,LLC)

Footnotes (7)

1. F1. The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan previously adopted by the Reporting Person primarily to cover taxes resulting from the vesting of RSUs.
2. F2. Reflects the weighted-average sale price for shares sold in multiple transactions at prices ranging from $14.305 to $15.09 per share. The Reporting Person undertakes to provide upon request by the Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.
3. F3. Reflects the weighted-average sale price for shares sold in multiple transactions at prices ranging from $14.615 to $15.025 per share. The Reporting Person undertakes to provide upon request by the Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.
4. F4. Reflects the weighted-average sale price for shares sold in multiple transactions at prices ranging from $15.12 to $15.43 per share. The Reporting Person undertakes to provide upon request by the Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.
5. F5. Reflects the weighted-average sale price for shares sold in multiple transactions at prices ranging from $14.31 to $15.09 per share. The Reporting Person undertakes to provide upon request by the Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.
6. F6. Reflects the weighted-average sale price for shares sold in multiple transactions at prices ranging from $14.615 to $15.20 per share. The Reporting Person undertakes to provide upon request by the Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.
7. F7. Reflects the weighted-average sale price for shares sold in multiple transactions at prices ranging from $15.01 to $15.63 per share. The Reporting Person undertakes to provide upon request by the Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

Key Figures

Class A shares sold: 461,563 shares Weighted-average sale price: $15.2525 per share Weighted-average sale price: $15.3646 per share +4 more

7 metrics

Class A shares sold 461,563 shares Six reported sales from November 2 through November 4, 2026

Weighted-average sale price $15.2525 per share 5,667 Class A shares held directly; November 4, 2026

Weighted-average sale price $15.3646 per share 93,279 Class A shares held by O.N.E. Holdings, LLC; November 4, 2026

Weighted-average sale price $14.9303 per share 15,022 Class A shares held directly; November 3, 2026

Weighted-average sale price $15.0445 per share 160,185 Class A shares held by O.N.E. Holdings, LLC; November 3, 2026

Weighted-average sale price $14.7891 per share 109,401 Class A shares held directly; November 2, 2026

Weighted-average sale price $14.7158 per share 78,009 Class A shares held by O.N.E. Holdings, LLC; November 2, 2026

Key Terms

Rule 10b5-1 trading plan, weighted-average sale price, RSUs

3 terms

Rule 10b5-1 trading plan regulatory

"pursuant to a Rule 10b5-1 trading plan previously adopted"

A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.

weighted-average sale price financial

"Reflects the weighted-average sale price"

RSUs financial

"resulting from the vesting of RSUs"

RSUs, or restricted stock units, are a form of company shares given to employees as part of their compensation. They are typically awarded with certain restrictions, such as a waiting period before they can be fully owned or sold, similar to earning a gift that becomes fully yours over time. For investors, RSUs can impact a company's stock offerings and reflect how much the company relies on stock-based incentives to attract and retain talent.

FAQ

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

How many MAX shares did Eugene Nonko sell?

Eugene Nonko reported six sales totaling 461,563 Class A shares from November 2 through November 4, 2026. The shares were held directly and through O.N.E. Holdings, LLC. The sales were made under a previously adopted Rule 10b5-1 trading plan primarily to cover taxes resulting from RSU vesting.

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

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SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

X

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Nonko Eugene

(Last) (First) (Middle)

C/O MEDIAALPHA, INC.

700 SOUTH FLOWER STREET, SUITE 640

(Street)

LOS ANGELES CALIFORNIA 90017

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
MediaAlpha, Inc. [ MAX ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
11/02/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Class A Common Stock	11/02/2026		S(1)		109,401	D	$14.7891(2)	675,125	D
Class A Common Stock	11/03/2026		S(1)		15,022	D	$14.9303(3)	660,103	D
Class A Common Stock	11/04/2026		S(1)		5,667	D	$15.2525(4)	654,436	D
Class A Common Stock	11/02/2026		S(1)		78,009	D	$14.7158(5)	711,892	I	By O.N.E. Holdings,LLC
Class A Common Stock	11/03/2026		S(1)		160,185	D	$15.0445(6)	551,707	I	By O.N.E. Holdings,LLC
Class A Common Stock	11/04/2026		S(1)		93,279	D	$15.3646(7)	458,428	I	By O.N.E. Holdings,LLC

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan previously adopted by the Reporting Person primarily to cover taxes resulting from the vesting of RSUs.

2. Reflects the weighted-average sale price for shares sold in multiple transactions at prices ranging from $14.305 to $15.09 per share. The Reporting Person undertakes to provide upon request by the Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

3. Reflects the weighted-average sale price for shares sold in multiple transactions at prices ranging from $14.615 to $15.025 per share. The Reporting Person undertakes to provide upon request by the Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

4. Reflects the weighted-average sale price for shares sold in multiple transactions at prices ranging from $15.12 to $15.43 per share. The Reporting Person undertakes to provide upon request by the Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

5. Reflects the weighted-average sale price for shares sold in multiple transactions at prices ranging from $14.31 to $15.09 per share. The Reporting Person undertakes to provide upon request by the Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

6. Reflects the weighted-average sale price for shares sold in multiple transactions at prices ranging from $14.615 to $15.20 per share. The Reporting Person undertakes to provide upon request by the Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

7. Reflects the weighted-average sale price for shares sold in multiple transactions at prices ranging from $15.01 to $15.63 per share. The Reporting Person undertakes to provide upon request by the Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

Remarks:

	/s/ Jeffrey B. Coyne	11/04/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)