ALTG

SEC source: 0001213900-22-003101 · ownership.xml · nonDerivative · entry 3

B. Riley Financial, Inc. · CIK 0001464790 · 10% owner

B. Riley Securities, Inc. · CIK 0001505748 · 10% owner

RILEY BRYANT R · CIK 0001207269 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By B. Riley Securities, Inc.

Disclosed balance after: 5,239,950

F7 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $13.65 to $13.85, inclusive. The Filing Persons reporting person undertakes to provide to the Commission, upon request, full information regarding the number of shares sold at each separate price.

F1 · ownership.nature: 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.

F2 · ownership.nature: BRF is the parent company of BRS. As a result, BRF may be deemed to indirectly beneficially own the shares held by BRS.

F3 · ownership.nature: 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.

SEC source: 0001213900-22-003101 · ownership.xml · nonDerivative · entry 2

B. Riley Financial, Inc. · CIK 0001464790 · 10% owner

B. Riley Securities, Inc. · CIK 0001505748 · 10% owner

RILEY BRYANT R · CIK 0001207269 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By B. Riley Securities, Inc.

Disclosed balance after: 5,219,453

F6 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $13.87 to $14.10, inclusive. The Filing Persons reporting person undertakes to provide to the Commission, upon request, full information regarding the number of shares sold at each separate price.

F1 · ownership.nature: 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.

F2 · ownership.nature: BRF is the parent company of BRS. As a result, BRF may be deemed to indirectly beneficially own the shares held by BRS.

F3 · ownership.nature: 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.

SEC source: 0001213900-22-003101 · ownership.xml · nonDerivative · entry 1

B. Riley Financial, Inc. · CIK 0001464790 · 10% owner

B. Riley Securities, Inc. · CIK 0001505748 · 10% owner

RILEY BRYANT R · CIK 0001207269 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By B. Riley Securities, Inc.

Disclosed balance after: 5,179,943

F5 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $14.05 to $14.15, inclusive. The Filing Persons reporting person undertakes to provide to the Commission, upon request, full information regarding the number of shares sold at each separate price.

F1 · ownership.nature: 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.

F2 · ownership.nature: BRF is the parent company of BRS. As a result, BRF may be deemed to indirectly beneficially own the shares held by BRS.

F3 · ownership.nature: 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.

SEC source: 0001213900-22-001947 · ownership.xml · nonDerivative · entry 2

B. Riley Financial, Inc. · CIK 0001464790 · 10% owner

B. Riley Securities, Inc. · CIK 0001505748 · 10% owner

RILEY BRYANT R · CIK 0001207269 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By B. Riley Securities, Inc.

Disclosed balance after: 5,154,355

F5 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $14.24 to $14.25, inclusive. The Filing Persons reporting person undertakes to provide to the Commission, upon request, full information regarding the number of shares sold at each separate price.

F1 · ownership.nature: 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.

F2 · ownership.nature: BRF is the parent company of BRS. As a result, BRF may be deemed to indirectly beneficially own the shares held by BRS.

F3 · ownership.nature: 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.

SEC source: 0001213900-22-001947 · ownership.xml · nonDerivative · entry 1

B. Riley Financial, Inc. · CIK 0001464790 · 10% owner

B. Riley Securities, Inc. · CIK 0001505748 · 10% owner

RILEY BRYANT R · CIK 0001207269 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By B. Riley Securities, Inc.

Disclosed balance after: 5,088,617

F1 · ownership.nature: 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.

F2 · ownership.nature: BRF is the parent company of BRS. As a result, BRF may be deemed to indirectly beneficially own the shares held by BRS.

F3 · ownership.nature: 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.

SEC source: 0001213900-22-000356 · ownership.xml · nonDerivative · entry 1

B. Riley Financial, Inc. · CIK 0001464790 · 10% owner

B. Riley Securities, Inc. · CIK 0001505748 · 10% owner

RILEY BRYANT R · CIK 0001207269 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By B. Riley Securities, Inc.

Disclosed balance after: 5,087,263

F1 · ownership.nature: 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.

F2 · ownership.nature: BRF is the parent company of BRS. As a result, BRF may be deemed to indirectly beneficially own the shares held by BRS.

F3 · ownership.nature: 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.

SEC source: 0001213900-21-065563 · ownership.xml · nonDerivative · entry 3

B. Riley Financial, Inc. · CIK 0001464790 · 10% owner

B. Riley Securities, Inc. · CIK 0001505748 · 10% owner

RILEY BRYANT R · CIK 0001207269 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By B. Riley Securities, Inc.

Disclosed balance after: 5,084,475

F7 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $13.35 to $13.70, inclusive. The Filing Persons reporting person undertakes to provide to the Commission, upon request, full information regarding the number of shares sold at each separate price.

F1 · ownership.nature: 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.

F2 · ownership.nature: BRF is the parent company of BRS. As a result, BRF may be deemed to indirectly beneficially own the shares held by BRS.

F3 · ownership.nature: 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.

SEC source: 0001213900-21-065563 · ownership.xml · nonDerivative · entry 2

B. Riley Financial, Inc. · CIK 0001464790 · 10% owner

B. Riley Securities, Inc. · CIK 0001505748 · 10% owner

RILEY BRYANT R · CIK 0001207269 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By B. Riley Securities, Inc.

Disclosed balance after: 4,993,228

F6 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $13.40 to $13.50, inclusive. The Filing Persons reporting person undertakes to provide to the Commission, upon request, full information regarding the number of shares sold at each separate price.

F1 · ownership.nature: 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.

F2 · ownership.nature: BRF is the parent company of BRS. As a result, BRF may be deemed to indirectly beneficially own the shares held by BRS.

F3 · ownership.nature: 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.

SEC source: 0001213900-21-065563 · ownership.xml · nonDerivative · entry 1

B. Riley Financial, Inc. · CIK 0001464790 · 10% owner

B. Riley Securities, Inc. · CIK 0001505748 · 10% owner

RILEY BRYANT R · CIK 0001207269 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By B. Riley Securities, Inc.

Disclosed balance after: 4,971,638

F5 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $13.42 to $13.50, inclusive. The Filing Persons reporting person undertakes to provide to the Commission, upon request, full information regarding the number of shares sold at each separate price.

F1 · ownership.nature: 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.

F2 · ownership.nature: BRF is the parent company of BRS. As a result, BRF may be deemed to indirectly beneficially own the shares held by BRS.

F3 · ownership.nature: 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.

SEC source: 0000899243-21-044828 · doc4.xml · nonDerivative · entry 1

Colucci Anthony · CIK 0001803739 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 20,250

F1 · security: This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 24, 2021.

F2 · price: This transaction was executed in multiple trades and the price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide full information regarding the number of shares and prices at which the transactions were effected upon request to the SEC staff, Alta Equipment Group Inc., or a security holder of Alta Equipment Group Inc.

SEC source: 0000899243-21-043053 · doc4.xml · nonDerivative · entry 4

Colucci Anthony · CIK 0001803739 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 22,750

F1 · security: This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 24, 2021.

F2 · price: This transaction was executed in multiple trades and the price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide full information regarding the number of shares and prices at which the transactions were effected upon request to the SEC staff, Alta Equipment Group Inc., or a security holder of Alta Equipment Group Inc.

SEC source: 0000899243-21-043053 · doc4.xml · nonDerivative · entry 3

Colucci Anthony · CIK 0001803739 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 26,650

F1 · security: This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 24, 2021.

F2 · price: This transaction was executed in multiple trades and the price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide full information regarding the number of shares and prices at which the transactions were effected upon request to the SEC staff, Alta Equipment Group Inc., or a security holder of Alta Equipment Group Inc.

SEC source: 0000899243-21-043053 · doc4.xml · nonDerivative · entry 2

Colucci Anthony · CIK 0001803739 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 28,850

F1 · security: This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 24, 2021.

F2 · price: This transaction was executed in multiple trades and the price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide full information regarding the number of shares and prices at which the transactions were effected upon request to the SEC staff, Alta Equipment Group Inc., or a security holder of Alta Equipment Group Inc.

SEC source: 0000899243-21-043053 · doc4.xml · nonDerivative · entry 1

Colucci Anthony · CIK 0001803739 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 30,450

F1 · security: This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 24, 2021.

F2 · price: This transaction was executed in multiple trades and the price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide full information regarding the number of shares and prices at which the transactions were effected upon request to the SEC staff, Alta Equipment Group Inc., or a security holder of Alta Equipment Group Inc.

SEC source: 0001213900-21-053902 · ownership.xml · nonDerivative · entry 2

B. Riley Financial, Inc. · CIK 0001464790 · 10% owner

B. RILEY CAPITAL MANAGEMENT, LLC · CIK 0001658704 · 10% owner

BRC Partners Management GP, LLC · CIK 0001749420 · 10% owner

BRC Partners Opportunity Fund, LP · CIK 0001642765 · 10% owner

B. Riley Securities, Inc. · CIK 0001505748 · 10% owner

RILEY BRYANT R · CIK 0001207269 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By B. Riley Securities, Inc.

Disclosed balance after: 4,935,111

F1 · ownership.nature: This Form 4 is being filed jointly by BRF, B. Riley Securities, Inc., a Delaware corporation ("BRS"), BRC Partners Opportunity Fund, LP, a Delaware limited partnership ("BRPLP"), BRC Partners Management GP, LLC, a Delaware limited liability company ("BRPGP"), B. Riley Capital Management, LLC, a New York limited liability company, a registered investment advisor ("BRCM"), and Bryant R. Riley.

F2 · ownership.nature: BRPGP is a subsidiary of BRCM, a registered investment advisor, and is the general partner of BRPLP. BRF is the parent company of BRCM. As a result, BRPGP, BRCM and BRF may be deemed to indirectly beneficially own the shares held by BRPLP. BRF is the parent company of BRS. As a result, BRF may be deemed to indirectly beneficially own the shares held by BRS.

F3 · ownership.nature: 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, and BRPLP. Each of BRF, BRS, BRPGP, BRCM, BRPLP, 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.

SEC source: 0001213900-21-053902 · ownership.xml · nonDerivative · entry 1

B. Riley Financial, Inc. · CIK 0001464790 · 10% owner

B. RILEY CAPITAL MANAGEMENT, LLC · CIK 0001658704 · 10% owner

BRC Partners Management GP, LLC · CIK 0001749420 · 10% owner

BRC Partners Opportunity Fund, LP · CIK 0001642765 · 10% owner

B. Riley Securities, Inc. · CIK 0001505748 · 10% owner

RILEY BRYANT R · CIK 0001207269 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By B. Riley Securities, Inc.

Disclosed balance after: 4,929,508

F1 · ownership.nature: This Form 4 is being filed jointly by BRF, B. Riley Securities, Inc., a Delaware corporation ("BRS"), BRC Partners Opportunity Fund, LP, a Delaware limited partnership ("BRPLP"), BRC Partners Management GP, LLC, a Delaware limited liability company ("BRPGP"), B. Riley Capital Management, LLC, a New York limited liability company, a registered investment advisor ("BRCM"), and Bryant R. Riley.

F2 · ownership.nature: BRPGP is a subsidiary of BRCM, a registered investment advisor, and is the general partner of BRPLP. BRF is the parent company of BRCM. As a result, BRPGP, BRCM and BRF may be deemed to indirectly beneficially own the shares held by BRPLP. BRF is the parent company of BRS. As a result, BRF may be deemed to indirectly beneficially own the shares held by BRS.

F3 · ownership.nature: 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, and BRPLP. Each of BRF, BRS, BRPGP, BRCM, BRPLP, 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.

SEC source: 0001213900-21-048700 · ownership.xml · nonDerivative · entry 2

B. Riley Financial, Inc. · CIK 0001464790 · 10% owner

B. RILEY CAPITAL MANAGEMENT, LLC · CIK 0001658704 · 10% owner

BRC Partners Management GP, LLC · CIK 0001749420 · 10% owner

BRC Partners Opportunity Fund, LP · CIK 0001642765 · 10% owner

B. Riley Securities, Inc. · CIK 0001505748 · 10% owner

RILEY BRYANT R · CIK 0001207269 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By B. Riley Securities, Inc.

Disclosed balance after: 4,906,422

F5 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $12.80 to $13.00, inclusive. The Filing Persons reporting person undertakes to provide to the Commission, upon request, full information regarding the number of shares sold at each separate price.

F1 · ownership.nature: This Form 4 is being filed jointly by BRF, B. Riley Securities, Inc., a Delaware corporation ("BRS"), BRC Partners Opportunity Fund, LP, a Delaware limited partnership ("BRPLP"), BRC Partners Management GP, LLC, a Delaware limited liability company ("BRPGP"), B. Riley Capital Management, LLC, a New York limited liability company, a registered investment advisor ("BRCM"), and Bryant R. Riley.

F2 · ownership.nature: BRPGP is a subsidiary of BRCM, a registered investment advisor, and is the general partner of BRPLP. BRF is the parent company of BRCM. As a result, BRPGP, BRCM and BRF may be deemed to indirectly beneficially own the shares held by BRPLP. BRF is the parent company of BRS. As a result, BRF may be deemed to indirectly beneficially own the shares held by BRS.

F3 · ownership.nature: 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, and BRPLP. Each of BRF, BRS, BRPGP, BRCM, BRPLP, 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.

SEC source: 0001213900-21-048700 · ownership.xml · nonDerivative · entry 1

B. Riley Financial, Inc. · CIK 0001464790 · 10% owner

B. RILEY CAPITAL MANAGEMENT, LLC · CIK 0001658704 · 10% owner

BRC Partners Management GP, LLC · CIK 0001749420 · 10% owner

BRC Partners Opportunity Fund, LP · CIK 0001642765 · 10% owner

B. Riley Securities, Inc. · CIK 0001505748 · 10% owner

RILEY BRYANT R · CIK 0001207269 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By B. Riley Securities, Inc.

Disclosed balance after: 4,888,651

F1 · ownership.nature: This Form 4 is being filed jointly by BRF, B. Riley Securities, Inc., a Delaware corporation ("BRS"), BRC Partners Opportunity Fund, LP, a Delaware limited partnership ("BRPLP"), BRC Partners Management GP, LLC, a Delaware limited liability company ("BRPGP"), B. Riley Capital Management, LLC, a New York limited liability company, a registered investment advisor ("BRCM"), and Bryant R. Riley.

F2 · ownership.nature: BRPGP is a subsidiary of BRCM, a registered investment advisor, and is the general partner of BRPLP. BRF is the parent company of BRCM. As a result, BRPGP, BRCM and BRF may be deemed to indirectly beneficially own the shares held by BRPLP. BRF is the parent company of BRS. As a result, BRF may be deemed to indirectly beneficially own the shares held by BRS.

F3 · ownership.nature: 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, and BRPLP. Each of BRF, BRS, BRPGP, BRCM, BRPLP, 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.

SEC source: 0000899243-21-036237 · doc4.xml · nonDerivative · entry 1

Savas Zachary E. · CIK 0001471478 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 38,781

F1 · kind: 5,000 shares were acquired in open market transaction on September 14, 2021 at a purchase price of $12.90/share.

SEC source: 0001213900-21-047454 · ownership.xml · nonDerivative · entry 3

B. Riley Financial, Inc. · CIK 0001464790 · 10% owner

B. RILEY CAPITAL MANAGEMENT, LLC · CIK 0001658704 · 10% owner

BRC Partners Management GP, LLC · CIK 0001749420 · 10% owner

BRC Partners Opportunity Fund, LP · CIK 0001642765 · 10% owner

B. Riley Securities, Inc. · CIK 0001505748 · 10% owner

RILEY BRYANT R · CIK 0001207269 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By B. Riley Securities, Inc.

Disclosed balance after: 4,883,620

F1 · ownership.nature: This Form 4 is being filed jointly by BRF, B. Riley Securities, Inc., a Delaware corporation ("BRS"), BRC Partners Opportunity Fund, LP, a Delaware limited partnership ("BRPLP"), BRC Partners Management GP, LLC, a Delaware limited liability company ("BRPGP"), B. Riley Capital Management, LLC, a New York limited liability company, a registered investment advisor ("BRCM"), and Bryant R. Riley.

F2 · ownership.nature: BRPGP is a subsidiary of BRCM, a registered investment advisor, and is the general partner of BRPLP. BRF is the parent company of BRCM. As a result, BRPGP, BRCM and BRF may be deemed to indirectly beneficially own the shares held by BRPLP. BRF is the parent company of BRS. As a result, BRF may be deemed to indirectly beneficially own the shares held by BRS.

F3 · ownership.nature: 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, and BRPLP. Each of BRF, BRS, BRPGP, BRCM, BRPLP, 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.

SEC source: 0001213900-21-047454 · ownership.xml · nonDerivative · entry 2

B. Riley Financial, Inc. · CIK 0001464790 · 10% owner

B. RILEY CAPITAL MANAGEMENT, LLC · CIK 0001658704 · 10% owner

BRC Partners Management GP, LLC · CIK 0001749420 · 10% owner

BRC Partners Opportunity Fund, LP · CIK 0001642765 · 10% owner

B. Riley Securities, Inc. · CIK 0001505748 · 10% owner

RILEY BRYANT R · CIK 0001207269 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By B. Riley Securities, Inc.

Disclosed balance after: 4,873,343

F1 · ownership.nature: This Form 4 is being filed jointly by BRF, B. Riley Securities, Inc., a Delaware corporation ("BRS"), BRC Partners Opportunity Fund, LP, a Delaware limited partnership ("BRPLP"), BRC Partners Management GP, LLC, a Delaware limited liability company ("BRPGP"), B. Riley Capital Management, LLC, a New York limited liability company, a registered investment advisor ("BRCM"), and Bryant R. Riley.

F2 · ownership.nature: BRPGP is a subsidiary of BRCM, a registered investment advisor, and is the general partner of BRPLP. BRF is the parent company of BRCM. As a result, BRPGP, BRCM and BRF may be deemed to indirectly beneficially own the shares held by BRPLP. BRF is the parent company of BRS. As a result, BRF may be deemed to indirectly beneficially own the shares held by BRS.

F3 · ownership.nature: 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, and BRPLP. Each of BRF, BRS, BRPGP, BRCM, BRPLP, 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.

SEC source: 0001213900-21-047454 · ownership.xml · nonDerivative · entry 1

B. Riley Financial, Inc. · CIK 0001464790 · 10% owner

B. RILEY CAPITAL MANAGEMENT, LLC · CIK 0001658704 · 10% owner

BRC Partners Management GP, LLC · CIK 0001749420 · 10% owner

BRC Partners Opportunity Fund, LP · CIK 0001642765 · 10% owner

B. Riley Securities, Inc. · CIK 0001505748 · 10% owner

RILEY BRYANT R · CIK 0001207269 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By B. Riley Securities, Inc.

Disclosed balance after: 4,869,389

F1 · ownership.nature: This Form 4 is being filed jointly by BRF, B. Riley Securities, Inc., a Delaware corporation ("BRS"), BRC Partners Opportunity Fund, LP, a Delaware limited partnership ("BRPLP"), BRC Partners Management GP, LLC, a Delaware limited liability company ("BRPGP"), B. Riley Capital Management, LLC, a New York limited liability company, a registered investment advisor ("BRCM"), and Bryant R. Riley.

F2 · ownership.nature: BRPGP is a subsidiary of BRCM, a registered investment advisor, and is the general partner of BRPLP. BRF is the parent company of BRCM. As a result, BRPGP, BRCM and BRF may be deemed to indirectly beneficially own the shares held by BRPLP. BRF is the parent company of BRS. As a result, BRF may be deemed to indirectly beneficially own the shares held by BRS.

F3 · ownership.nature: 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, and BRPLP. Each of BRF, BRS, BRPGP, BRCM, BRPLP, 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.

SEC source: 0001213900-21-044379 · ownership.xml · nonDerivative · entry 1

B. Riley Financial, Inc. · CIK 0001464790 · 10% owner

B. RILEY CAPITAL MANAGEMENT, LLC · CIK 0001658704 · 10% owner

BRC Partners Management GP, LLC · CIK 0001749420 · 10% owner

BRC Partners Opportunity Fund, LP · CIK 0001642765 · 10% owner

B. Riley Securities, Inc. · CIK 0001505748 · 10% owner

RILEY BRYANT R · CIK 0001207269 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By BRC Partners Opportunity Fund, L.P.

Disclosed balance after: 1,351,307

F1 · ownership.nature: This Form 4 is being filed jointly by BRF, B. Riley Securities, Inc., a Delaware corporation ("BRS"), BRC Partners Opportunity Fund, LP, a Delaware limited partnership ("BRPLP"), BRC Partners Management GP, LLC, a Delaware limited liability company ("BRPGP"), B. Riley Capital Management, LLC, a New York limited liability company, a registered investment advisor ("BRCM"), and Bryant R. Riley.

F2 · ownership.nature: BRPGP is a subsidiary of BRCM, a registered investment advisor, and is the general partner of BRPLP. BRF is the parent company of BRCM. As a result, BRPGP, BRCM and BRF may be deemed to indirectly beneficially own the shares held by BRPLP. BRF is the parent company of BRS. As a result, BRF may be deemed to indirectly beneficially own the shares held by BRS.

F3 · ownership.nature: 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, and BRPLP. Each of BRF, BRS, BRPGP, BRCM, BRPLP, 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.

SEC source: 0000899243-21-031215 · doc4.xml · nonDerivative · entry 3

Colucci Anthony · CIK 0001803739 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 35,450

F1 · security: This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 24, 2021.

F2 · price: This transaction was executed in multiple trades and the price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide full information regarding the number of shares and prices at which the transactions were effected upon request to the SEC staff, Alta Equipment Group Inc., or a security holder of Alta Equipment Group Inc.

SEC source: 0000899243-21-023134 · doc4.xml · nonDerivative · entry 1

Savas Zachary E. · CIK 0001471478 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 33,781

F1 · kind: 5,000 shares were acquired in open market transaction on June 10, 2021 at a purchase price of $12.855/share.

SEC source: 0000899243-21-025948 · doc4.xml · nonDerivative · entry 1

Colucci Anthony · CIK 0001803739 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 48,750

F1 · price: Common Stock issued at vesting of previously granted Restricted Stock Units ("RSUs").

SEC source: 0000899243-22-015757 · doc4.xml · nonDerivative · entry 1

STUDDERT ANDREW P · CIK 0001053465 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 34,228

F1 · security: The reporting person was granted such time-based restricted stock units ("RSUs") for the annual director grant on the date of the 2021 annual shareholder meeting on June 9, 2021. Each RSU represents the right to receive one share of Common Stock. Subject to the director's election to defer the receipt of the RSUs to the director's termination of service as a director, the RSUs vest 1/12th each month and fully vest on the date of the annual meeting in the following year.

F1 · price: The reporting person was granted such time-based restricted stock units ("RSUs") for the annual director grant on the date of the 2021 annual shareholder meeting on June 9, 2021. Each RSU represents the right to receive one share of Common Stock. Subject to the director's election to defer the receipt of the RSUs to the director's termination of service as a director, the RSUs vest 1/12th each month and fully vest on the date of the annual meeting in the following year.

SEC source: 0000899243-22-015754 · doc4.xml · nonDerivative · entry 1

Savas Zachary E. · CIK 0001471478 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 56,557

F1 · security: The reporting person was granted such time-based restricted stock units ("RSUs") for the annual director grant on the date of the 2021 annual shareholder meeting on June 9, 2021. Each RSU represents the right to receive one share of Common Stock. Subject to the director's election to defer the receipt of the RSUs to the director's termination of service as a director, the RSUs vest 1/12th each month and fully vest on the date of the annual meeting in the following year.

F1 · price: The reporting person was granted such time-based restricted stock units ("RSUs") for the annual director grant on the date of the 2021 annual shareholder meeting on June 9, 2021. Each RSU represents the right to receive one share of Common Stock. Subject to the director's election to defer the receipt of the RSUs to the director's termination of service as a director, the RSUs vest 1/12th each month and fully vest on the date of the annual meeting in the following year.

SEC source: 0000899243-22-015765 · doc4.xml · nonDerivative · entry 1

White Katherine E · CIK 0001651356 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,776

F1 · security: The reporting person was granted such time-based restricted stock units ("RSUs") for the annual director grant on the date of the 2021 annual shareholder meeting on June 9, 2021. Each RSU represents the right to receive one share of Common Stock. Subject to the director's election to defer the receipt of the RSUs to the director's termination of service as a director, the RSUs vest 1/12th each month and fully vest on the date of the annual meeting in the following year.

F1 · price: The reporting person was granted such time-based restricted stock units ("RSUs") for the annual director grant on the date of the 2021 annual shareholder meeting on June 9, 2021. Each RSU represents the right to receive one share of Common Stock. Subject to the director's election to defer the receipt of the RSUs to the director's termination of service as a director, the RSUs vest 1/12th each month and fully vest on the date of the annual meeting in the following year.

SEC source: 0000899243-22-015756 · doc4.xml · nonDerivative · entry 1

Shribman Daniel · CIK 0001772389 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 356,761

F1 · security: The reporting person was granted such time-based restricted stock units ("RSUs") for the annual director grant on the date of the 2021 annual shareholder meeting on June 9, 2021. Each RSU represents the right to receive one share of Common Stock. Subject to the director's election to defer the receipt of the RSUs to the director's termination of service as a director, the RSUs vest 1/12th each month and fully vest on the date of the annual meeting in the following year.

F1 · price: The reporting person was granted such time-based restricted stock units ("RSUs") for the annual director grant on the date of the 2021 annual shareholder meeting on June 9, 2021. Each RSU represents the right to receive one share of Common Stock. Subject to the director's election to defer the receipt of the RSUs to the director's termination of service as a director, the RSUs vest 1/12th each month and fully vest on the date of the annual meeting in the following year.

SEC source: 0000899243-21-031215 · doc4.xml · nonDerivative · entry 2

Colucci Anthony · CIK 0001803739 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 38,750

F1 · security: This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 24, 2021.

F2 · price: This transaction was executed in multiple trades and the price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide full information regarding the number of shares and prices at which the transactions were effected upon request to the SEC staff, Alta Equipment Group Inc., or a security holder of Alta Equipment Group Inc.

SEC source: 0000899243-21-031215 · doc4.xml · nonDerivative · entry 1

Colucci Anthony · CIK 0001803739 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 42,989

F1 · security: This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 24, 2021.

F2 · price: This transaction was executed in multiple trades and the price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide full information regarding the number of shares and prices at which the transactions were effected upon request to the SEC staff, Alta Equipment Group Inc., or a security holder of Alta Equipment Group Inc.

SEC source: 0000899243-21-019809 · doc4.xml · nonDerivative · entry 1

Greenawalt Ryan · CIK 0001803431 · Director · CEO, Chairman · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,697,000

F1 · kind: On May 14, 2021, in connection with his and his spouse's estate planning, Mr. Greenawalt transferred 1,603,000 shares of the issuer's common stock for no consideration to Snowbird Capital LLC, an entity owned by an irrevocable trust created for the benefit of Mr. Greenawalt's direct descendants. Steven Greenawalt, Mr. Greenawalt's father, has voting power over the shares as manager of Snowbird Capital LLC. Mr. Greenawalt disclaims beneficial ownership of the shares held by Snowbird Capital LLC.

F1 · price: On May 14, 2021, in connection with his and his spouse's estate planning, Mr. Greenawalt transferred 1,603,000 shares of the issuer's common stock for no consideration to Snowbird Capital LLC, an entity owned by an irrevocable trust created for the benefit of Mr. Greenawalt's direct descendants. Steven Greenawalt, Mr. Greenawalt's father, has voting power over the shares as manager of Snowbird Capital LLC. Mr. Greenawalt disclaims beneficial ownership of the shares held by Snowbird Capital LLC.

SEC source: 0001213900-21-021233 · ownership.xml · derivative · entry 7

B. Riley Financial, Inc. · CIK 0001464790 · 10% owner

B. Riley Principal Sponsor Co., LLC · CIK 0001772457 · 10% owner

B. RILEY CAPITAL MANAGEMENT, LLC · CIK 0001658704 · 10% owner

BRC Partners Management GP, LLC · CIK 0001749420 · 10% owner

BRC Partners Opportunity Fund, LP · CIK 0001642765 · 10% owner

B. Riley Securities, Inc. · CIK 0001505748 · 10% owner

B. RILEY PRINCIPAL INVESTMENTS, LLC · CIK 0001776226 · 10% owner

RILEY BRYANT R · CIK 0001207269 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By B. Riley Principal Sponsor Co., LLC

Disclosed balance after: 0

Underlying: Common Stock · 54,243 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F5 · derivative.exercise_price: As reported in the Current Report on Form 8-K filed by Alta Equipment Group Inc. (the "Issuer") with the Securities and Exchange Commission (the "SEC") on March 22, 2021, on March 22, 2021, the Issuer filed a definitive Schedule 14C Information Statement (the "Information Statement") with the SEC describing the mandatory exchange, pursuant to Amendment No. 1 to the Warrant Agreement (as defined below), dated March 3, 2021 between the Issuer and Continental Stock Transfer & Trust Company (the "Warrant Agent"), of the Issuer's outstanding warrants (the "Warrants") for shares of the Issuer's common stock at an exchange ratio of 0.263 shares of common stock per Warrant, which became effective on April 12, 2021, the next business day following the twentieth calendar day after the mailing of the Information Statement to the holders of the Warrants.

F5 · kind: As reported in the Current Report on Form 8-K filed by Alta Equipment Group Inc. (the "Issuer") with the Securities and Exchange Commission (the "SEC") on March 22, 2021, on March 22, 2021, the Issuer filed a definitive Schedule 14C Information Statement (the "Information Statement") with the SEC describing the mandatory exchange, pursuant to Amendment No. 1 to the Warrant Agreement (as defined below), dated March 3, 2021 between the Issuer and Continental Stock Transfer & Trust Company (the "Warrant Agent"), of the Issuer's outstanding warrants (the "Warrants") for shares of the Issuer's common stock at an exchange ratio of 0.263 shares of common stock per Warrant, which became effective on April 12, 2021, the next business day following the twentieth calendar day after the mailing of the Information Statement to the holders of the Warrants.

F5 · price: As reported in the Current Report on Form 8-K filed by Alta Equipment Group Inc. (the "Issuer") with the Securities and Exchange Commission (the "SEC") on March 22, 2021, on March 22, 2021, the Issuer filed a definitive Schedule 14C Information Statement (the "Information Statement") with the SEC describing the mandatory exchange, pursuant to Amendment No. 1 to the Warrant Agreement (as defined below), dated March 3, 2021 between the Issuer and Continental Stock Transfer & Trust Company (the "Warrant Agent"), of the Issuer's outstanding warrants (the "Warrants") for shares of the Issuer's common stock at an exchange ratio of 0.263 shares of common stock per Warrant, which became effective on April 12, 2021, the next business day following the twentieth calendar day after the mailing of the Information Statement to the holders of the Warrants.

F6 · derivative.exercise_date: Pursuant to the warrant agreement (the "Warrant Agreement") dated as of April 8, 2019, by and between the Issuer (f/k/a B. Riley Principal Merger Corp., or BRPM) and the Warrant Agent, the Warrants originally became exercisable on April 11, 2020, which was 12 months from the closing of the initial public offering of the Issuer.

F7 · derivative.expiration_date: Pursuant to the Warrant Agreement, the Warrants were originally set to expire five years after the completion of the business combination or earlier upon redemption or liquidation, as further described in the Prospectus filed by BRPM with the SEC on April 9, 2019.

F1 · ownership.nature: This Form 4 is being filed jointly by B. Riley Financial, Inc., a Delaware corporation ("BRF"), B. Riley Securities, Inc., a Delaware corporation ("BRS"), BRC Partners Opportunity Fund, LP, a Delaware limited partnership ("BRPLP"), BRC Partners Management GP, LLC, a Delaware limited liability company ("BRPGP"), B. Riley Capital Management, LLC, a New York limited liability company, a registered investment advisor ("BRCM"), B. Riley Principal Sponsor Co., LLC (the "Sponsor"), B. Riley Principal Investments, LLC, a Delaware limited liability company ("BRPI") and Bryant R. Riley.

F2 · ownership.nature: BRPGP is a subsidiary of BRCM, a registered investment advisor, and is the general partner of BRPLP. BRF is the parent company of BRCM. As a result, BRPGP, BRCM and BRF may be deemed to indirectly beneficially own the shares held by BRPLP. BRPI is the sole member of the Sponsor. BRF is the parent company of BRS and BRPI. As a result, BRF may be deemed to indirectly beneficially own the shares held by BRS and BPRI. As a result, BRF and BRPI may be deemed to indirectly beneficially own the shares held by the Sponsor.

F3 · ownership.nature: 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 BRF, BRS, BRPLP and the Sponsor. Each of BRF, BRS, BRPGP, BRCM, BRPLP, the Sponsor, and BRPI (collectively, the "B. Riley Entities") 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.

SEC source: 0001213900-21-021233 · ownership.xml · derivative · entry 6

B. Riley Financial, Inc. · CIK 0001464790 · 10% owner

B. Riley Principal Sponsor Co., LLC · CIK 0001772457 · 10% owner

B. RILEY CAPITAL MANAGEMENT, LLC · CIK 0001658704 · 10% owner

BRC Partners Management GP, LLC · CIK 0001749420 · 10% owner

BRC Partners Opportunity Fund, LP · CIK 0001642765 · 10% owner

B. Riley Securities, Inc. · CIK 0001505748 · 10% owner

B. RILEY PRINCIPAL INVESTMENTS, LLC · CIK 0001776226 · 10% owner

RILEY BRYANT R · CIK 0001207269 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By BRC Partners Opportunity Fund, L.P.

Disclosed balance after: 0

Underlying: Common Stock · 180,976 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F5 · derivative.exercise_price: As reported in the Current Report on Form 8-K filed by Alta Equipment Group Inc. (the "Issuer") with the Securities and Exchange Commission (the "SEC") on March 22, 2021, on March 22, 2021, the Issuer filed a definitive Schedule 14C Information Statement (the "Information Statement") with the SEC describing the mandatory exchange, pursuant to Amendment No. 1 to the Warrant Agreement (as defined below), dated March 3, 2021 between the Issuer and Continental Stock Transfer & Trust Company (the "Warrant Agent"), of the Issuer's outstanding warrants (the "Warrants") for shares of the Issuer's common stock at an exchange ratio of 0.263 shares of common stock per Warrant, which became effective on April 12, 2021, the next business day following the twentieth calendar day after the mailing of the Information Statement to the holders of the Warrants.

F5 · kind: As reported in the Current Report on Form 8-K filed by Alta Equipment Group Inc. (the "Issuer") with the Securities and Exchange Commission (the "SEC") on March 22, 2021, on March 22, 2021, the Issuer filed a definitive Schedule 14C Information Statement (the "Information Statement") with the SEC describing the mandatory exchange, pursuant to Amendment No. 1 to the Warrant Agreement (as defined below), dated March 3, 2021 between the Issuer and Continental Stock Transfer & Trust Company (the "Warrant Agent"), of the Issuer's outstanding warrants (the "Warrants") for shares of the Issuer's common stock at an exchange ratio of 0.263 shares of common stock per Warrant, which became effective on April 12, 2021, the next business day following the twentieth calendar day after the mailing of the Information Statement to the holders of the Warrants.

F5 · price: As reported in the Current Report on Form 8-K filed by Alta Equipment Group Inc. (the "Issuer") with the Securities and Exchange Commission (the "SEC") on March 22, 2021, on March 22, 2021, the Issuer filed a definitive Schedule 14C Information Statement (the "Information Statement") with the SEC describing the mandatory exchange, pursuant to Amendment No. 1 to the Warrant Agreement (as defined below), dated March 3, 2021 between the Issuer and Continental Stock Transfer & Trust Company (the "Warrant Agent"), of the Issuer's outstanding warrants (the "Warrants") for shares of the Issuer's common stock at an exchange ratio of 0.263 shares of common stock per Warrant, which became effective on April 12, 2021, the next business day following the twentieth calendar day after the mailing of the Information Statement to the holders of the Warrants.

F6 · derivative.exercise_date: Pursuant to the warrant agreement (the "Warrant Agreement") dated as of April 8, 2019, by and between the Issuer (f/k/a B. Riley Principal Merger Corp., or BRPM) and the Warrant Agent, the Warrants originally became exercisable on April 11, 2020, which was 12 months from the closing of the initial public offering of the Issuer.

F7 · derivative.expiration_date: Pursuant to the Warrant Agreement, the Warrants were originally set to expire five years after the completion of the business combination or earlier upon redemption or liquidation, as further described in the Prospectus filed by BRPM with the SEC on April 9, 2019.

F1 · ownership.nature: This Form 4 is being filed jointly by B. Riley Financial, Inc., a Delaware corporation ("BRF"), B. Riley Securities, Inc., a Delaware corporation ("BRS"), BRC Partners Opportunity Fund, LP, a Delaware limited partnership ("BRPLP"), BRC Partners Management GP, LLC, a Delaware limited liability company ("BRPGP"), B. Riley Capital Management, LLC, a New York limited liability company, a registered investment advisor ("BRCM"), B. Riley Principal Sponsor Co., LLC (the "Sponsor"), B. Riley Principal Investments, LLC, a Delaware limited liability company ("BRPI") and Bryant R. Riley.

F2 · ownership.nature: BRPGP is a subsidiary of BRCM, a registered investment advisor, and is the general partner of BRPLP. BRF is the parent company of BRCM. As a result, BRPGP, BRCM and BRF may be deemed to indirectly beneficially own the shares held by BRPLP. BRPI is the sole member of the Sponsor. BRF is the parent company of BRS and BRPI. As a result, BRF may be deemed to indirectly beneficially own the shares held by BRS and BPRI. As a result, BRF and BRPI may be deemed to indirectly beneficially own the shares held by the Sponsor.

F3 · ownership.nature: 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 BRF, BRS, BRPLP and the Sponsor. Each of BRF, BRS, BRPGP, BRCM, BRPLP, the Sponsor, and BRPI (collectively, the "B. Riley Entities") 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.

SEC source: 0001213900-21-021233 · ownership.xml · derivative · entry 5

B. Riley Financial, Inc. · CIK 0001464790 · 10% owner

B. Riley Principal Sponsor Co., LLC · CIK 0001772457 · 10% owner

B. RILEY CAPITAL MANAGEMENT, LLC · CIK 0001658704 · 10% owner

BRC Partners Management GP, LLC · CIK 0001749420 · 10% owner

BRC Partners Opportunity Fund, LP · CIK 0001642765 · 10% owner

B. Riley Securities, Inc. · CIK 0001505748 · 10% owner

B. RILEY PRINCIPAL INVESTMENTS, LLC · CIK 0001776226 · 10% owner

RILEY BRYANT R · CIK 0001207269 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By B. Riley Securities, Inc.

Disclosed balance after: 0

Underlying: Common Stock · 132,826 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F5 · derivative.exercise_price: As reported in the Current Report on Form 8-K filed by Alta Equipment Group Inc. (the "Issuer") with the Securities and Exchange Commission (the "SEC") on March 22, 2021, on March 22, 2021, the Issuer filed a definitive Schedule 14C Information Statement (the "Information Statement") with the SEC describing the mandatory exchange, pursuant to Amendment No. 1 to the Warrant Agreement (as defined below), dated March 3, 2021 between the Issuer and Continental Stock Transfer & Trust Company (the "Warrant Agent"), of the Issuer's outstanding warrants (the "Warrants") for shares of the Issuer's common stock at an exchange ratio of 0.263 shares of common stock per Warrant, which became effective on April 12, 2021, the next business day following the twentieth calendar day after the mailing of the Information Statement to the holders of the Warrants.

F5 · kind: As reported in the Current Report on Form 8-K filed by Alta Equipment Group Inc. (the "Issuer") with the Securities and Exchange Commission (the "SEC") on March 22, 2021, on March 22, 2021, the Issuer filed a definitive Schedule 14C Information Statement (the "Information Statement") with the SEC describing the mandatory exchange, pursuant to Amendment No. 1 to the Warrant Agreement (as defined below), dated March 3, 2021 between the Issuer and Continental Stock Transfer & Trust Company (the "Warrant Agent"), of the Issuer's outstanding warrants (the "Warrants") for shares of the Issuer's common stock at an exchange ratio of 0.263 shares of common stock per Warrant, which became effective on April 12, 2021, the next business day following the twentieth calendar day after the mailing of the Information Statement to the holders of the Warrants.

F5 · price: As reported in the Current Report on Form 8-K filed by Alta Equipment Group Inc. (the "Issuer") with the Securities and Exchange Commission (the "SEC") on March 22, 2021, on March 22, 2021, the Issuer filed a definitive Schedule 14C Information Statement (the "Information Statement") with the SEC describing the mandatory exchange, pursuant to Amendment No. 1 to the Warrant Agreement (as defined below), dated March 3, 2021 between the Issuer and Continental Stock Transfer & Trust Company (the "Warrant Agent"), of the Issuer's outstanding warrants (the "Warrants") for shares of the Issuer's common stock at an exchange ratio of 0.263 shares of common stock per Warrant, which became effective on April 12, 2021, the next business day following the twentieth calendar day after the mailing of the Information Statement to the holders of the Warrants.

F6 · derivative.exercise_date: Pursuant to the warrant agreement (the "Warrant Agreement") dated as of April 8, 2019, by and between the Issuer (f/k/a B. Riley Principal Merger Corp., or BRPM) and the Warrant Agent, the Warrants originally became exercisable on April 11, 2020, which was 12 months from the closing of the initial public offering of the Issuer.

F7 · derivative.expiration_date: Pursuant to the Warrant Agreement, the Warrants were originally set to expire five years after the completion of the business combination or earlier upon redemption or liquidation, as further described in the Prospectus filed by BRPM with the SEC on April 9, 2019.

F1 · ownership.nature: This Form 4 is being filed jointly by B. Riley Financial, Inc., a Delaware corporation ("BRF"), B. Riley Securities, Inc., a Delaware corporation ("BRS"), BRC Partners Opportunity Fund, LP, a Delaware limited partnership ("BRPLP"), BRC Partners Management GP, LLC, a Delaware limited liability company ("BRPGP"), B. Riley Capital Management, LLC, a New York limited liability company, a registered investment advisor ("BRCM"), B. Riley Principal Sponsor Co., LLC (the "Sponsor"), B. Riley Principal Investments, LLC, a Delaware limited liability company ("BRPI") and Bryant R. Riley.

F2 · ownership.nature: BRPGP is a subsidiary of BRCM, a registered investment advisor, and is the general partner of BRPLP. BRF is the parent company of BRCM. As a result, BRPGP, BRCM and BRF may be deemed to indirectly beneficially own the shares held by BRPLP. BRPI is the sole member of the Sponsor. BRF is the parent company of BRS and BRPI. As a result, BRF may be deemed to indirectly beneficially own the shares held by BRS and BPRI. As a result, BRF and BRPI may be deemed to indirectly beneficially own the shares held by the Sponsor.

F3 · ownership.nature: 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 BRF, BRS, BRPLP and the Sponsor. Each of BRF, BRS, BRPGP, BRCM, BRPLP, the Sponsor, and BRPI (collectively, the "B. Riley Entities") 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.

SEC source: 0001213900-21-021233 · ownership.xml · nonDerivative · entry 3

B. Riley Financial, Inc. · CIK 0001464790 · 10% owner

B. Riley Principal Sponsor Co., LLC · CIK 0001772457 · 10% owner

B. RILEY CAPITAL MANAGEMENT, LLC · CIK 0001658704 · 10% owner

BRC Partners Management GP, LLC · CIK 0001749420 · 10% owner

BRC Partners Opportunity Fund, LP · CIK 0001642765 · 10% owner

B. Riley Securities, Inc. · CIK 0001505748 · 10% owner

B. RILEY PRINCIPAL INVESTMENTS, LLC · CIK 0001776226 · 10% owner

RILEY BRYANT R · CIK 0001207269 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By B. Riley Principal Sponsor Co., LLC

Disclosed balance after: 54,243

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F5 · kind: As reported in the Current Report on Form 8-K filed by Alta Equipment Group Inc. (the "Issuer") with the Securities and Exchange Commission (the "SEC") on March 22, 2021, on March 22, 2021, the Issuer filed a definitive Schedule 14C Information Statement (the "Information Statement") with the SEC describing the mandatory exchange, pursuant to Amendment No. 1 to the Warrant Agreement (as defined below), dated March 3, 2021 between the Issuer and Continental Stock Transfer & Trust Company (the "Warrant Agent"), of the Issuer's outstanding warrants (the "Warrants") for shares of the Issuer's common stock at an exchange ratio of 0.263 shares of common stock per Warrant, which became effective on April 12, 2021, the next business day following the twentieth calendar day after the mailing of the Information Statement to the holders of the Warrants.

F5 · price: As reported in the Current Report on Form 8-K filed by Alta Equipment Group Inc. (the "Issuer") with the Securities and Exchange Commission (the "SEC") on March 22, 2021, on March 22, 2021, the Issuer filed a definitive Schedule 14C Information Statement (the "Information Statement") with the SEC describing the mandatory exchange, pursuant to Amendment No. 1 to the Warrant Agreement (as defined below), dated March 3, 2021 between the Issuer and Continental Stock Transfer & Trust Company (the "Warrant Agent"), of the Issuer's outstanding warrants (the "Warrants") for shares of the Issuer's common stock at an exchange ratio of 0.263 shares of common stock per Warrant, which became effective on April 12, 2021, the next business day following the twentieth calendar day after the mailing of the Information Statement to the holders of the Warrants.

F1 · ownership.nature: This Form 4 is being filed jointly by B. Riley Financial, Inc., a Delaware corporation ("BRF"), B. Riley Securities, Inc., a Delaware corporation ("BRS"), BRC Partners Opportunity Fund, LP, a Delaware limited partnership ("BRPLP"), BRC Partners Management GP, LLC, a Delaware limited liability company ("BRPGP"), B. Riley Capital Management, LLC, a New York limited liability company, a registered investment advisor ("BRCM"), B. Riley Principal Sponsor Co., LLC (the "Sponsor"), B. Riley Principal Investments, LLC, a Delaware limited liability company ("BRPI") and Bryant R. Riley.

F2 · ownership.nature: BRPGP is a subsidiary of BRCM, a registered investment advisor, and is the general partner of BRPLP. BRF is the parent company of BRCM. As a result, BRPGP, BRCM and BRF may be deemed to indirectly beneficially own the shares held by BRPLP. BRPI is the sole member of the Sponsor. BRF is the parent company of BRS and BRPI. As a result, BRF may be deemed to indirectly beneficially own the shares held by BRS and BPRI. As a result, BRF and BRPI may be deemed to indirectly beneficially own the shares held by the Sponsor.

F3 · ownership.nature: 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 BRF, BRS, BRPLP and the Sponsor. Each of BRF, BRS, BRPGP, BRCM, BRPLP, the Sponsor, and BRPI (collectively, the "B. Riley Entities") 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.

SEC source: 0001213900-21-021233 · ownership.xml · nonDerivative · entry 2

B. Riley Financial, Inc. · CIK 0001464790 · 10% owner

B. Riley Principal Sponsor Co., LLC · CIK 0001772457 · 10% owner

B. RILEY CAPITAL MANAGEMENT, LLC · CIK 0001658704 · 10% owner

BRC Partners Management GP, LLC · CIK 0001749420 · 10% owner

BRC Partners Opportunity Fund, LP · CIK 0001642765 · 10% owner

B. Riley Securities, Inc. · CIK 0001505748 · 10% owner

B. RILEY PRINCIPAL INVESTMENTS, LLC · CIK 0001776226 · 10% owner

RILEY BRYANT R · CIK 0001207269 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By BRC Partners Opportunity Fund, L.P.

Disclosed balance after: 1,350,453

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F5 · kind: As reported in the Current Report on Form 8-K filed by Alta Equipment Group Inc. (the "Issuer") with the Securities and Exchange Commission (the "SEC") on March 22, 2021, on March 22, 2021, the Issuer filed a definitive Schedule 14C Information Statement (the "Information Statement") with the SEC describing the mandatory exchange, pursuant to Amendment No. 1 to the Warrant Agreement (as defined below), dated March 3, 2021 between the Issuer and Continental Stock Transfer & Trust Company (the "Warrant Agent"), of the Issuer's outstanding warrants (the "Warrants") for shares of the Issuer's common stock at an exchange ratio of 0.263 shares of common stock per Warrant, which became effective on April 12, 2021, the next business day following the twentieth calendar day after the mailing of the Information Statement to the holders of the Warrants.

F5 · price: As reported in the Current Report on Form 8-K filed by Alta Equipment Group Inc. (the "Issuer") with the Securities and Exchange Commission (the "SEC") on March 22, 2021, on March 22, 2021, the Issuer filed a definitive Schedule 14C Information Statement (the "Information Statement") with the SEC describing the mandatory exchange, pursuant to Amendment No. 1 to the Warrant Agreement (as defined below), dated March 3, 2021 between the Issuer and Continental Stock Transfer & Trust Company (the "Warrant Agent"), of the Issuer's outstanding warrants (the "Warrants") for shares of the Issuer's common stock at an exchange ratio of 0.263 shares of common stock per Warrant, which became effective on April 12, 2021, the next business day following the twentieth calendar day after the mailing of the Information Statement to the holders of the Warrants.

F1 · ownership.nature: This Form 4 is being filed jointly by B. Riley Financial, Inc., a Delaware corporation ("BRF"), B. Riley Securities, Inc., a Delaware corporation ("BRS"), BRC Partners Opportunity Fund, LP, a Delaware limited partnership ("BRPLP"), BRC Partners Management GP, LLC, a Delaware limited liability company ("BRPGP"), B. Riley Capital Management, LLC, a New York limited liability company, a registered investment advisor ("BRCM"), B. Riley Principal Sponsor Co., LLC (the "Sponsor"), B. Riley Principal Investments, LLC, a Delaware limited liability company ("BRPI") and Bryant R. Riley.

F2 · ownership.nature: BRPGP is a subsidiary of BRCM, a registered investment advisor, and is the general partner of BRPLP. BRF is the parent company of BRCM. As a result, BRPGP, BRCM and BRF may be deemed to indirectly beneficially own the shares held by BRPLP. BRPI is the sole member of the Sponsor. BRF is the parent company of BRS and BRPI. As a result, BRF may be deemed to indirectly beneficially own the shares held by BRS and BPRI. As a result, BRF and BRPI may be deemed to indirectly beneficially own the shares held by the Sponsor.

F3 · ownership.nature: 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 BRF, BRS, BRPLP and the Sponsor. Each of BRF, BRS, BRPGP, BRCM, BRPLP, the Sponsor, and BRPI (collectively, the "B. Riley Entities") 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.

SEC source: 0001213900-21-021233 · ownership.xml · nonDerivative · entry 1

B. Riley Financial, Inc. · CIK 0001464790 · 10% owner

B. Riley Principal Sponsor Co., LLC · CIK 0001772457 · 10% owner

B. RILEY CAPITAL MANAGEMENT, LLC · CIK 0001658704 · 10% owner

BRC Partners Management GP, LLC · CIK 0001749420 · 10% owner

BRC Partners Opportunity Fund, LP · CIK 0001642765 · 10% owner

B. Riley Securities, Inc. · CIK 0001505748 · 10% owner

B. RILEY PRINCIPAL INVESTMENTS, LLC · CIK 0001776226 · 10% owner

RILEY BRYANT R · CIK 0001207269 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By B. Riley Securities, Inc.

Disclosed balance after: 4,811,666

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F5 · kind: As reported in the Current Report on Form 8-K filed by Alta Equipment Group Inc. (the "Issuer") with the Securities and Exchange Commission (the "SEC") on March 22, 2021, on March 22, 2021, the Issuer filed a definitive Schedule 14C Information Statement (the "Information Statement") with the SEC describing the mandatory exchange, pursuant to Amendment No. 1 to the Warrant Agreement (as defined below), dated March 3, 2021 between the Issuer and Continental Stock Transfer & Trust Company (the "Warrant Agent"), of the Issuer's outstanding warrants (the "Warrants") for shares of the Issuer's common stock at an exchange ratio of 0.263 shares of common stock per Warrant, which became effective on April 12, 2021, the next business day following the twentieth calendar day after the mailing of the Information Statement to the holders of the Warrants.

F5 · price: As reported in the Current Report on Form 8-K filed by Alta Equipment Group Inc. (the "Issuer") with the Securities and Exchange Commission (the "SEC") on March 22, 2021, on March 22, 2021, the Issuer filed a definitive Schedule 14C Information Statement (the "Information Statement") with the SEC describing the mandatory exchange, pursuant to Amendment No. 1 to the Warrant Agreement (as defined below), dated March 3, 2021 between the Issuer and Continental Stock Transfer & Trust Company (the "Warrant Agent"), of the Issuer's outstanding warrants (the "Warrants") for shares of the Issuer's common stock at an exchange ratio of 0.263 shares of common stock per Warrant, which became effective on April 12, 2021, the next business day following the twentieth calendar day after the mailing of the Information Statement to the holders of the Warrants.

F1 · ownership.nature: This Form 4 is being filed jointly by B. Riley Financial, Inc., a Delaware corporation ("BRF"), B. Riley Securities, Inc., a Delaware corporation ("BRS"), BRC Partners Opportunity Fund, LP, a Delaware limited partnership ("BRPLP"), BRC Partners Management GP, LLC, a Delaware limited liability company ("BRPGP"), B. Riley Capital Management, LLC, a New York limited liability company, a registered investment advisor ("BRCM"), B. Riley Principal Sponsor Co., LLC (the "Sponsor"), B. Riley Principal Investments, LLC, a Delaware limited liability company ("BRPI") and Bryant R. Riley.

F2 · ownership.nature: BRPGP is a subsidiary of BRCM, a registered investment advisor, and is the general partner of BRPLP. BRF is the parent company of BRCM. As a result, BRPGP, BRCM and BRF may be deemed to indirectly beneficially own the shares held by BRPLP. BRPI is the sole member of the Sponsor. BRF is the parent company of BRS and BRPI. As a result, BRF may be deemed to indirectly beneficially own the shares held by BRS and BPRI. As a result, BRF and BRPI may be deemed to indirectly beneficially own the shares held by the Sponsor.

F3 · ownership.nature: 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 BRF, BRS, BRPLP and the Sponsor. Each of BRF, BRS, BRPGP, BRCM, BRPLP, the Sponsor, and BRPI (collectively, the "B. Riley Entities") 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.

SEC source: 0000899243-21-016370 · doc4.xml · derivative · entry 2

STUDDERT ANDREW P · CIK 0001053465 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 986 shares

Expires 2025-03-15

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: As reported in the Current Report on Form 8-K filed by Alta Equipment Group Inc. (the "Issuer") with the Securities and Exchange Commission (the "SEC") on March 22, 2021, the Issuer filed a definitive Schedule 14C Information Statement (the "Information Statement") with the SEC describing the mandatory exchange, pursuant to Amendment No. 1 to the Warrant Agreement (as defined below), dated March 3, 2021 between the Issuer and Continental Stock Transfer & Trust Company (the "Warrant Agent"), of the Issuer's outstanding warrants (the "Warrants") for shares of the Issuer's common stock at an exchange ratio of 0.263 shares of common stock per Warrant, which became effective on April 12, 2021, the next business day following the twentieth calendar day after the mailing of the Information Statement to the holders of the Warrants.

F1 · kind: As reported in the Current Report on Form 8-K filed by Alta Equipment Group Inc. (the "Issuer") with the Securities and Exchange Commission (the "SEC") on March 22, 2021, the Issuer filed a definitive Schedule 14C Information Statement (the "Information Statement") with the SEC describing the mandatory exchange, pursuant to Amendment No. 1 to the Warrant Agreement (as defined below), dated March 3, 2021 between the Issuer and Continental Stock Transfer & Trust Company (the "Warrant Agent"), of the Issuer's outstanding warrants (the "Warrants") for shares of the Issuer's common stock at an exchange ratio of 0.263 shares of common stock per Warrant, which became effective on April 12, 2021, the next business day following the twentieth calendar day after the mailing of the Information Statement to the holders of the Warrants.

F1 · price: As reported in the Current Report on Form 8-K filed by Alta Equipment Group Inc. (the "Issuer") with the Securities and Exchange Commission (the "SEC") on March 22, 2021, the Issuer filed a definitive Schedule 14C Information Statement (the "Information Statement") with the SEC describing the mandatory exchange, pursuant to Amendment No. 1 to the Warrant Agreement (as defined below), dated March 3, 2021 between the Issuer and Continental Stock Transfer & Trust Company (the "Warrant Agent"), of the Issuer's outstanding warrants (the "Warrants") for shares of the Issuer's common stock at an exchange ratio of 0.263 shares of common stock per Warrant, which became effective on April 12, 2021, the next business day following the twentieth calendar day after the mailing of the Information Statement to the holders of the Warrants.

SEC source: 0000899243-21-016370 · doc4.xml · nonDerivative · entry 1

STUDDERT ANDREW P · CIK 0001053465 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 16,512

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: As reported in the Current Report on Form 8-K filed by Alta Equipment Group Inc. (the "Issuer") with the Securities and Exchange Commission (the "SEC") on March 22, 2021, the Issuer filed a definitive Schedule 14C Information Statement (the "Information Statement") with the SEC describing the mandatory exchange, pursuant to Amendment No. 1 to the Warrant Agreement (as defined below), dated March 3, 2021 between the Issuer and Continental Stock Transfer & Trust Company (the "Warrant Agent"), of the Issuer's outstanding warrants (the "Warrants") for shares of the Issuer's common stock at an exchange ratio of 0.263 shares of common stock per Warrant, which became effective on April 12, 2021, the next business day following the twentieth calendar day after the mailing of the Information Statement to the holders of the Warrants.

F1 · price: As reported in the Current Report on Form 8-K filed by Alta Equipment Group Inc. (the "Issuer") with the Securities and Exchange Commission (the "SEC") on March 22, 2021, the Issuer filed a definitive Schedule 14C Information Statement (the "Information Statement") with the SEC describing the mandatory exchange, pursuant to Amendment No. 1 to the Warrant Agreement (as defined below), dated March 3, 2021 between the Issuer and Continental Stock Transfer & Trust Company (the "Warrant Agent"), of the Issuer's outstanding warrants (the "Warrants") for shares of the Issuer's common stock at an exchange ratio of 0.263 shares of common stock per Warrant, which became effective on April 12, 2021, the next business day following the twentieth calendar day after the mailing of the Information Statement to the holders of the Warrants.

SEC source: 0000899243-21-016368 · doc4.xml · derivative · entry 2

Savas Zachary E. · CIK 0001471478 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 2,465 shares

Expires 2025-03-15

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: As reported in the Current Report on Form 8-K filed by Alta Equipment Group Inc. (the "Issuer") with the Securities and Exchange Commission (the "SEC") on March 22, 2021, the Issuer filed a definitive Schedule 14C Information Statement (the "Information Statement") with the SEC describing the mandatory exchange, pursuant to Amendment No. 1 to the Warrant Agreement (as defined below), dated March 3, 2021 between the Issuer and Continental Stock Transfer & Trust Company (the "Warrant Agent"), of the Issuer's outstanding warrants (the "Warrants") for shares of the Issuer's common stock at an exchange ratio of 0.263 shares of common stock per Warrant, which became effective on April 12, 2021, the next business day following the twentieth calendar day after the mailing of the Information Statement to the holders of the Warrants.

F1 · kind: As reported in the Current Report on Form 8-K filed by Alta Equipment Group Inc. (the "Issuer") with the Securities and Exchange Commission (the "SEC") on March 22, 2021, the Issuer filed a definitive Schedule 14C Information Statement (the "Information Statement") with the SEC describing the mandatory exchange, pursuant to Amendment No. 1 to the Warrant Agreement (as defined below), dated March 3, 2021 between the Issuer and Continental Stock Transfer & Trust Company (the "Warrant Agent"), of the Issuer's outstanding warrants (the "Warrants") for shares of the Issuer's common stock at an exchange ratio of 0.263 shares of common stock per Warrant, which became effective on April 12, 2021, the next business day following the twentieth calendar day after the mailing of the Information Statement to the holders of the Warrants.

F1 · price: As reported in the Current Report on Form 8-K filed by Alta Equipment Group Inc. (the "Issuer") with the Securities and Exchange Commission (the "SEC") on March 22, 2021, the Issuer filed a definitive Schedule 14C Information Statement (the "Information Statement") with the SEC describing the mandatory exchange, pursuant to Amendment No. 1 to the Warrant Agreement (as defined below), dated March 3, 2021 between the Issuer and Continental Stock Transfer & Trust Company (the "Warrant Agent"), of the Issuer's outstanding warrants (the "Warrants") for shares of the Issuer's common stock at an exchange ratio of 0.263 shares of common stock per Warrant, which became effective on April 12, 2021, the next business day following the twentieth calendar day after the mailing of the Information Statement to the holders of the Warrants.

SEC source: 0000899243-21-016368 · doc4.xml · nonDerivative · entry 1

Savas Zachary E. · CIK 0001471478 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 28,781

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: As reported in the Current Report on Form 8-K filed by Alta Equipment Group Inc. (the "Issuer") with the Securities and Exchange Commission (the "SEC") on March 22, 2021, the Issuer filed a definitive Schedule 14C Information Statement (the "Information Statement") with the SEC describing the mandatory exchange, pursuant to Amendment No. 1 to the Warrant Agreement (as defined below), dated March 3, 2021 between the Issuer and Continental Stock Transfer & Trust Company (the "Warrant Agent"), of the Issuer's outstanding warrants (the "Warrants") for shares of the Issuer's common stock at an exchange ratio of 0.263 shares of common stock per Warrant, which became effective on April 12, 2021, the next business day following the twentieth calendar day after the mailing of the Information Statement to the holders of the Warrants.

F1 · price: As reported in the Current Report on Form 8-K filed by Alta Equipment Group Inc. (the "Issuer") with the Securities and Exchange Commission (the "SEC") on March 22, 2021, the Issuer filed a definitive Schedule 14C Information Statement (the "Information Statement") with the SEC describing the mandatory exchange, pursuant to Amendment No. 1 to the Warrant Agreement (as defined below), dated March 3, 2021 between the Issuer and Continental Stock Transfer & Trust Company (the "Warrant Agent"), of the Issuer's outstanding warrants (the "Warrants") for shares of the Issuer's common stock at an exchange ratio of 0.263 shares of common stock per Warrant, which became effective on April 12, 2021, the next business day following the twentieth calendar day after the mailing of the Information Statement to the holders of the Warrants.

SEC source: 0000899243-22-015793 · doc4.xml · derivative · entry 5

Colucci Anthony · CIK 0001803739 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 61,573

Underlying: Common Stock · 12,823 shares

Expires not disclosed

F2 · security: The reporting person was previously granted time-based RSUs, under the Alta Equipment Group Inc. 2020 Omnibus Incentive Plan on April 1, 2021. Each RSU represents the right to receive one share of Common Stock for each RSU. The RSUs vest annually over 3 years starting on February 14, 2022, subject to reporting person's continued employment with the Company. The disclosure in Table II is an amendment to the Form 4 filed February 17, 2022.

F2 · derivative.exercise_price: The reporting person was previously granted time-based RSUs, under the Alta Equipment Group Inc. 2020 Omnibus Incentive Plan on April 1, 2021. Each RSU represents the right to receive one share of Common Stock for each RSU. The RSUs vest annually over 3 years starting on February 14, 2022, subject to reporting person's continued employment with the Company. The disclosure in Table II is an amendment to the Form 4 filed February 17, 2022.

F2 · price: The reporting person was previously granted time-based RSUs, under the Alta Equipment Group Inc. 2020 Omnibus Incentive Plan on April 1, 2021. Each RSU represents the right to receive one share of Common Stock for each RSU. The RSUs vest annually over 3 years starting on February 14, 2022, subject to reporting person's continued employment with the Company. The disclosure in Table II is an amendment to the Form 4 filed February 17, 2022.

F2 · derivative.exercise_date: The reporting person was previously granted time-based RSUs, under the Alta Equipment Group Inc. 2020 Omnibus Incentive Plan on April 1, 2021. Each RSU represents the right to receive one share of Common Stock for each RSU. The RSUs vest annually over 3 years starting on February 14, 2022, subject to reporting person's continued employment with the Company. The disclosure in Table II is an amendment to the Form 4 filed February 17, 2022.

F2 · derivative.expiration_date: The reporting person was previously granted time-based RSUs, under the Alta Equipment Group Inc. 2020 Omnibus Incentive Plan on April 1, 2021. Each RSU represents the right to receive one share of Common Stock for each RSU. The RSUs vest annually over 3 years starting on February 14, 2022, subject to reporting person's continued employment with the Company. The disclosure in Table II is an amendment to the Form 4 filed February 17, 2022.

SEC source: 0000899243-22-015752 · doc4.xml · derivative · entry 4

Greenawalt Ryan · CIK 0001803431 · Director · CEO, Chairman · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 32,826

Underlying: Common Stock · 32,826 shares

Expires not disclosed

F1 · security: The reporting person was granted time-based restricted stock units ("RSUs"), on April 1, 2021, under the Alta Equipment Group Inc. 2020 Omnibus Incentive Plan, which represent the right to receive one share of Common Stock for each RSU. The RSUs vest annually over 3 years starting on February 14, 2022, subject to reporting person's continued employment with the Company. The disclosure in Table II is an amendment to the Form 4 filed February 17, 2022.

F1 · derivative.exercise_price: The reporting person was granted time-based restricted stock units ("RSUs"), on April 1, 2021, under the Alta Equipment Group Inc. 2020 Omnibus Incentive Plan, which represent the right to receive one share of Common Stock for each RSU. The RSUs vest annually over 3 years starting on February 14, 2022, subject to reporting person's continued employment with the Company. The disclosure in Table II is an amendment to the Form 4 filed February 17, 2022.

F1 · price: The reporting person was granted time-based restricted stock units ("RSUs"), on April 1, 2021, under the Alta Equipment Group Inc. 2020 Omnibus Incentive Plan, which represent the right to receive one share of Common Stock for each RSU. The RSUs vest annually over 3 years starting on February 14, 2022, subject to reporting person's continued employment with the Company. The disclosure in Table II is an amendment to the Form 4 filed February 17, 2022.

F1 · derivative.exercise_date: The reporting person was granted time-based restricted stock units ("RSUs"), on April 1, 2021, under the Alta Equipment Group Inc. 2020 Omnibus Incentive Plan, which represent the right to receive one share of Common Stock for each RSU. The RSUs vest annually over 3 years starting on February 14, 2022, subject to reporting person's continued employment with the Company. The disclosure in Table II is an amendment to the Form 4 filed February 17, 2022.

F1 · derivative.expiration_date: The reporting person was granted time-based restricted stock units ("RSUs"), on April 1, 2021, under the Alta Equipment Group Inc. 2020 Omnibus Incentive Plan, which represent the right to receive one share of Common Stock for each RSU. The RSUs vest annually over 3 years starting on February 14, 2022, subject to reporting person's continued employment with the Company. The disclosure in Table II is an amendment to the Form 4 filed February 17, 2022.

SEC source: 0000899243-20-031393 · doc4.xml · nonDerivative · entry 2

STUDDERT ANDREW P · CIK 0001053465 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,526

F1 · kind: 5,000 shares were acquired in open market transactions on November 17, 2020. 3,000 shares at a purchase price of $8.61/share and 2,000 at a purchase price of $8.55/share.

F1 · price: 5,000 shares were acquired in open market transactions on November 17, 2020. 3,000 shares at a purchase price of $8.61/share and 2,000 at a purchase price of $8.55/share.

SEC source: 0000899243-20-031393 · doc4.xml · nonDerivative · entry 1

STUDDERT ANDREW P · CIK 0001053465 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,526

F1 · kind: 5,000 shares were acquired in open market transactions on November 17, 2020. 3,000 shares at a purchase price of $8.61/share and 2,000 at a purchase price of $8.55/share.

F1 · price: 5,000 shares were acquired in open market transactions on November 17, 2020. 3,000 shares at a purchase price of $8.61/share and 2,000 at a purchase price of $8.55/share.

SEC source: 0000899243-20-031395 · doc4.xml · nonDerivative · entry 1

Shribman Daniel · CIK 0001772389 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 338,985

F1 · kind: This transaction was executed in multiple trades at prices ranging from $8.40 to $9.07. The price set forth above reflects the weighted-average price per share. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transactions were effected.

F1 · price: This transaction was executed in multiple trades at prices ranging from $8.40 to $9.07. The price set forth above reflects the weighted-average price per share. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transactions were effected.

SEC source: 0000899243-22-015793 · doc4.xml · derivative · entry 7

Colucci Anthony · CIK 0001803739 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 65,000

Underlying: Common Stock · 65,000 shares

Expires not disclosed

F1 · security: The reporting person was previously granted time-based restricted stock units ("RSUs") under the Alta Equipment Group Inc. 2020 Omnibus Incentive Plan on August 1, 2020. Each RSU represents the right to receive one share of Common Stock for each RSU. The RSUs vest annually over 4 years starting on February 14, 2021, subject to reporting person's continued employment with the Company. The disclosure in Table II is an amendment to the Form 4 filed February 17, 2022.

F1 · derivative.exercise_price: The reporting person was previously granted time-based restricted stock units ("RSUs") under the Alta Equipment Group Inc. 2020 Omnibus Incentive Plan on August 1, 2020. Each RSU represents the right to receive one share of Common Stock for each RSU. The RSUs vest annually over 4 years starting on February 14, 2021, subject to reporting person's continued employment with the Company. The disclosure in Table II is an amendment to the Form 4 filed February 17, 2022.

F1 · price: The reporting person was previously granted time-based restricted stock units ("RSUs") under the Alta Equipment Group Inc. 2020 Omnibus Incentive Plan on August 1, 2020. Each RSU represents the right to receive one share of Common Stock for each RSU. The RSUs vest annually over 4 years starting on February 14, 2021, subject to reporting person's continued employment with the Company. The disclosure in Table II is an amendment to the Form 4 filed February 17, 2022.

F1 · derivative.exercise_date: The reporting person was previously granted time-based restricted stock units ("RSUs") under the Alta Equipment Group Inc. 2020 Omnibus Incentive Plan on August 1, 2020. Each RSU represents the right to receive one share of Common Stock for each RSU. The RSUs vest annually over 4 years starting on February 14, 2021, subject to reporting person's continued employment with the Company. The disclosure in Table II is an amendment to the Form 4 filed February 17, 2022.

F1 · derivative.expiration_date: The reporting person was previously granted time-based restricted stock units ("RSUs") under the Alta Equipment Group Inc. 2020 Omnibus Incentive Plan on August 1, 2020. Each RSU represents the right to receive one share of Common Stock for each RSU. The RSUs vest annually over 4 years starting on February 14, 2021, subject to reporting person's continued employment with the Company. The disclosure in Table II is an amendment to the Form 4 filed February 17, 2022.

SEC source: 0001213900-20-006370 · ownership.xml · nonDerivative · entry 2

B. Riley Financial, Inc. · CIK 0001464790 · 10% owner

B. Riley Principal Sponsor Co., LLC · CIK 0001772457 · 10% owner

B. RILEY CAPITAL MANAGEMENT, LLC · CIK 0001658704 · 10% owner

BRC Partners Management GP, LLC · CIK 0001749420 · 10% owner

BRC Partners Opportunity Fund, LP · CIK 0001642765 · 10% owner

B. Riley FBR, Inc. · CIK 0001505748 · 10% owner

B. RILEY PRINCIPAL INVESTMENTS, LLC · CIK 0001776226 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See notes

Disclosed balance after: 5,848,317

F1 · ownership.nature: In addition to B. Riley Financial, Inc., a Delaware corporation ("BRF"), this Form 4 is being filed jointly by B. Riley Principal Sponsor Co., LLC (the "Sponsor"), B. Riley Capital Management, LLC, a New York limited liability company ("BRCM"), BRC Partners Management GP, LLC, a Delaware limited liability company ("BRPGP"), BRC Partners Opportunity Fund, L.P., a Delaware limited partnership ("BRPLP"), B. Riley FBR, Inc., a Delaware corporation ("BRFBR"), and B. Riley Principal Investments, LLC, a Delaware limited liability company ("BRPI" and collectively, the "Filing Persons"). Each of the Filing Persons disclaims beneficial ownership of the outstanding shares of Common Stock ("Common Stock") of Alta Equipment Group Inc., a Delaware corporation (the "Issuer"), reported herein except to the extent of its pecuniary interest therein.

F2 · ownership.nature: BRPGP is the general partner of BRPLP, BRCM is an investment advisor to BRPLP, and BRF is the parent company of BRCM. As a result, BRPGP, BRCM and BRF may be deemed to indirectly beneficially own the Shares held by BRPLP. BRF is the parent company of BRFBR and the sole member of the managing member of the Sponsor, and has voting and dispositive power over the securities held by each of BRFBR and the Sponsor. As a result, BRF may be deemed to indirectly beneficially own the securities held by BRFBR and the Sponsor. BRF is the parent company of BRPI. As a result, BRF may be deemed to indirectly beneficially own the Shares held by BRPI.

F3 · ownership.nature: Represents shares of Common Stock or warrants held directly by BRPLP.