X0508 4 2025-11-15 0 0001818383 MediaAlpha, Inc. MAX 0001897386 Thompson Patrick Ryan C/O MEDIAALPHA, INC. 700 SOUTH FLOWER STREET, SUITE 640 LOS ANGELES CA 90017 0 1 0 0 See Remarks 0 Class A Common Stock 2025-11-15 4 M 0 9772 0 A 904363 D Class A Common Stock 2025-11-15 4 F 0 3846 12.42 D 900517 D Class A Common Stock 2025-11-15 4 F 0 5258 12.42 D 895259 D Class A Common Stock 2025-11-15 4 F 0 4366 12.42 D 890893 D Class A Common Stock 2025-11-15 4 F 0 8333 12.42 D 882560 D Restricted Stock Units 2025-11-15 4 M 0 9772 0 D Class A Common Stock 9772 0 D One share of Class A Common Stock was issued upon the vesting of each Restricted Stock Unit ("RSU"). Represents shares withheld automatically by the Issuer to cover required tax withholding obligations due at settlement of RSUs. Represents shares withheld automatically by the Issuer to cover required tax withholding obligations due at settlement of restricted stock units previously reported in Table I as Class A Common Stock. Consists of RSUs granted to the Reporting Person on December 6, 2021 pursuant to the Issuer's Omnibus Incentive Plan, each of which represents a contingent right to receive one share of the Issuer's Class A Common Stock, or at the option of the Compensation Committee, cash of equivalent value, upon vesting. One quarter of such RSUs vested on November 15, 2022, and the remainder will vest quarterly through November 15, 2025, in each case subject to the Reporting Person's continued employment with the Issuer through the applicable vesting date. Chief Financial Officer and Treasurer /s/ Jeffrey B. Coyne 2025-11-18