X0206 3 2024-05-17 0 0001759824 ALTA EQUIPMENT GROUP INC. ALTG 0001767199 Mill Road Capital III, L.P. 328 PEMBERWICK ROAD GREENWICH CT 06831 0 0 1 0 0001767178 Mill Road Capital III GP LLC 328 PEMBERWICK ROAD GREENWICH CT 06831 0 0 1 0 0001244666 LYNCH THOMAS E 328 PEMBERWICK ROAD GREENWICH CT 06831 0 0 1 0 Common Stock, $0.0001 par value 3486594 D Put options (obligation to buy) 10.00 2024-07-19 Common Stock 535200 D Put options (obligation to buy) 12.50 2024-07-19 Common Stock 37800 D The shares reported are directly held by Mill Road Capital III, L.P. (the "Fund"). Mill Road Capital III GP LLC (the "GP") is the sole general partner of the Fund and has sole authority to vote (or direct the vote of), and to dispose (or direct the disposal) of, these shares on behalf of the Fund. Mr. Lynch is a management committee director of the GP and has shared authority to vote (or direct the vote of), and to dispose (or direct the disposal) of, these shares on behalf of the GP. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any. Each put option became exercisable on the date purchased, which dates range from 3/5/2024 to 5/10/2024. Each put option became exercisable on the date purchased, which dates range from 3/12/2024 to 3/14/2024. /s/ Deven Petito, Management Committee Director of sole general partner on behalf of Mill Road Capital III, L.P. 2024-05-24 /s/ Deven Petito, Management Committee Director on behalf of Mill Road Capital III GP LLC 2024-05-24 /s/ Deven Petito on behalf of Thomas E. Lynch by power of attorney 2024-05-24