X0407 4 2023-05-24 0 0001838672 AdTheorent Holding Company, Inc. ADTH 0001921929 Todd William James C/O ADTHEORENT HOLDING COMPANY, INC. 330 HUDSON STREET, 13TH FLOOR NEW YORK NY 10013 0 1 0 0 Chief Revenue Officer 0 Common Stock, $0.0001 Par Value 2023-05-24 4 A 0 131625 0.00 A 183491 D Pursuant to the terms of the Issuer's 2021 Long-Term Incentive Plan, the Reporting Person was granted Restricted Stock Units ("RSU"), which shall vest into common stock of the Company in accordance with the following schedule, subject to the Reporting Person's continuous service with the Issuer: (i) 50% of the RSUs will vest on January 1, 2024; (ii) the remaining 50% of the RSUs will vest on January 1, 2025. /s/ Thomas P. Conaghan, Attorney-in-Fact 2023-05-25