X0306 4 2022-02-14 0 0001759824 ALTA EQUIPMENT GROUP INC. ALTG 0001464790 B. Riley Financial, Inc. 11100 SANTA MONICA BLVD, SUITE 800 LOS ANGELES CA 90025 0 0 1 0 0001505748 B. Riley Securities, Inc. 11100 SANTA MONICA BLVD, SUITE 800 LOS ANGELES CA 90025 0 0 1 0 0001207269 RILEY BRYANT R 11100 SANTA MONICA BLVD, SUITE 800 LOS ANGELES CA 90025 0 0 1 0 Common Stock 2022-02-14 4 P 0 14881 12.7336 A 5426264 I By B. Riley Securities, Inc. Common Stock 606007 D Common Stock 1062 I By Bryant R. Riley, as UTMA custodian for Charlie Riley Common Stock 1062 I By Bryant R. Riley, as UTMA custodian for Susan Riley Common Stock 1062 I By Bryant R. Riley, as UTMA custodian for Abigail Riley Common Stock 1062 I By Bryant R. Riley, as UTMA custodian for Eloise Riley This Form 4 is being filed jointly by B. Riley Financial, Inc., a Delaware corporation ("BRF"), B. Riley Securities, Inc., a Delaware corporation ("BRS"), and Bryant R. Riley. BRF is the parent company of BRS. As a result, BRF may be deemed to indirectly beneficially own the shares held by BRS. Bryant R. Riley is the Co-Chief Executive Officer and Chairman of the Board of Directors of BRF. As a result, Bryant R. Riley may be deemed to indirectly beneficially own the shares of Common Stock directly held by BRS. Each of BRF, BRS, and Bryant R. Riley disclaims beneficial ownership of the outstanding shares of Common Stock reported herein, except to the extent of its/his respective pecuniary interest therein. Represents shares held directly by Bryant R. Riley. The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $12.70 to $12.75, inclusive. The Filing Persons reporting person undertakes to provide to the Commission, upon request, full information regarding the number of shares purchased at each separate price. B. Riley Financial, Inc., by: /s/ Bryant R. Riley, Co-Chief Executive Officer 2022-02-16 B. Riley Securities, Inc., by: /s/ Andrew Moore, Chief Executive Officer 2022-02-16 Bryant R. Riley, by: /s/ Bryant R. Riley 2022-02-16