ALTG

SEC source: 0001193125-26-251928 · ownership.xml · nonDerivative · entry 1

STUDDERT ANDREW P · CIK 0001053465 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 131,716

F1 · security: The reporting person was granted such time-based restricted stock units ("RSUs") for the annual director grant on the date of the 2026 Annual Meeting of Stockholders on May 29, 2026. Each RSU represents the right to receive one share of Common Stock. The RSUs vest 1/12th each month and fully vest on the date of the Annual Meeting of Stockholders 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 2026 Annual Meeting of Stockholders on May 29, 2026. Each RSU represents the right to receive one share of Common Stock. The RSUs vest 1/12th each month and fully vest on the date of the Annual Meeting of Stockholders the following year.

SEC source: 0001193125-26-251927 · ownership.xml · nonDerivative · entry 1

Nair Sidhartha · CIK 0002012708 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 52,709

F1 · security: The reporting person was granted such time-based restricted stock units ("RSUs") for the annual director grant on the date of the 2026 Annual Meeting of Stockholders on May 29, 2026. Each RSU represents the right to receive one share of Common Stock. Subject to the reporting person's election to defer the receipt of the RSUs to the reporting person's termination of service as a director, the RSUs vest 1/12th each month and fully vest on the date of the Annual Meeting of Stockholders 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 2026 Annual Meeting of Stockholders on May 29, 2026. Each RSU represents the right to receive one share of Common Stock. Subject to the reporting person's election to defer the receipt of the RSUs to the reporting person's termination of service as a director, the RSUs vest 1/12th each month and fully vest on the date of the Annual Meeting of Stockholders the following year.

SEC source: 0001193125-26-251925 · ownership.xml · nonDerivative · entry 1

WILSON COLIN · CIK 0001247998 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 43,937

F1 · security: The reporting person was granted such time-based restricted stock units ("RSUs") for the annual director grant on the date of the 2026 Annual Meeting of Stockholders on May 29, 2026. Each RSU represents the right to receive one share of Common Stock. Subject to the reporting person's election to defer the receipt of the RSUs to the reporting person's termination of service as a director, the RSUs vest 1/12th each month and fully vest on the date of the Annual Meeting of Stockholders 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 2026 Annual Meeting of Stockholders on May 29, 2026. Each RSU represents the right to receive one share of Common Stock. Subject to the reporting person's election to defer the receipt of the RSUs to the reporting person's termination of service as a director, the RSUs vest 1/12th each month and fully vest on the date of the Annual Meeting of Stockholders the following year.

SEC source: 0001193125-26-251931 · ownership.xml · nonDerivative · entry 1

White Katherine E · CIK 0001651356 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 82,204

F1 · security: The reporting person was granted such time-based restricted stock units ("RSUs") for the annual director grant on the date of the 2026 Annual Meeting of Stockholders on May 29, 2026. Each RSU represents the right to receive one share of Common Stock. Subject to the reporting person's election to defer the receipt of the RSUs to the reporting person's termination of service as a director, the RSUs vest 1/12th each month and fully vest on the date of the Annual Meeting of Stockholders 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 2026 Annual Meeting of Stockholders on May 29, 2026. Each RSU represents the right to receive one share of Common Stock. Subject to the reporting person's election to defer the receipt of the RSUs to the reporting person's termination of service as a director, the RSUs vest 1/12th each month and fully vest on the date of the Annual Meeting of Stockholders the following year.

SEC source: 0001193125-26-251932 · ownership.xml · nonDerivative · entry 1

Shribman Daniel · CIK 0001772389 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 361,796

F1 · security: The reporting person was granted such time-based restricted stock units ("RSUs") for the annual director grant on the date of the 2026 Annual Meeting of Stockholders on May 29, 2026. Each RSU represents the right to receive one share of Common Stock. Subject to the reporting person's election to defer the receipt of the RSUs to the reporting person's termination of service as a director, the RSUs vest 1/12th each month and fully vest on the date of the Annual Meeting of Stockholders 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 2026 Annual Meeting of Stockholders on May 29, 2026. Each RSU represents the right to receive one share of Common Stock. Subject to the reporting person's election to defer the receipt of the RSUs to the reporting person's termination of service as a director, the RSUs vest 1/12th each month and fully vest on the date of the Annual Meeting of Stockholders the following year.

SEC source: 0001193125-26-107685 · ownership.xml · nonDerivative · entry 2

Mill Road Capital III, L.P. · CIK 0001767199 · 10% owner

Mill Road Capital III GP LLC · CIK 0001767178 · 10% owner

LYNCH THOMAS E · CIK 0001244666 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,373,208

F1 · ownership.direct: The shares reported are directly held by Mill Road Capital III, L.P. (the "Fund"). Mill Road Capital III GP LLC (the "GP") is the sole general partner of the Fund and has sole authority to vote (or direct the vote of), and to dispose (or direct the disposal) of, these shares on behalf of the Fund. Mr. Lynch is a management committee director of the GP and has shared authority to vote (or direct the vote of), and to dispose (or direct the disposal) of, these shares on behalf of the GP. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any.

SEC source: 0001193125-26-107685 · ownership.xml · nonDerivative · entry 1

Mill Road Capital III, L.P. · CIK 0001767199 · 10% owner

Mill Road Capital III GP LLC · CIK 0001767178 · 10% owner

LYNCH THOMAS E · CIK 0001244666 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,369,410

F1 · ownership.direct: The shares reported are directly held by Mill Road Capital III, L.P. (the "Fund"). Mill Road Capital III GP LLC (the "GP") is the sole general partner of the Fund and has sole authority to vote (or direct the vote of), and to dispose (or direct the disposal) of, these shares on behalf of the Fund. Mr. Lynch is a management committee director of the GP and has shared authority to vote (or direct the vote of), and to dispose (or direct the disposal) of, these shares on behalf of the GP. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any.

SEC source: 0001193125-26-105817 · ownership.xml · nonDerivative · entry 1

Mill Road Capital III, L.P. · CIK 0001767199 · 10% owner

Mill Road Capital III GP LLC · CIK 0001767178 · 10% owner

LYNCH THOMAS E · CIK 0001244666 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,311,248

F1 · ownership.direct: The shares reported are directly held by Mill Road Capital III, L.P. (the "Fund"). Mill Road Capital III GP LLC (the "GP") is the sole general partner of the Fund and has sole authority to vote (or direct the vote of), and to dispose (or direct the disposal) of, these shares on behalf of the Fund. Mr. Lynch is a management committee director of the GP and has shared authority to vote (or direct the vote of), and to dispose (or direct the disposal) of, these shares on behalf of the GP. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any.

SEC source: 0001193125-26-108737 · ownership.xml · nonDerivative · entry 4

Nair Sidhartha · CIK 0002012708 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 37,806

F1 · price: These shares were purchased in one transaction at the disclosed price.

SEC source: 0001193125-26-108737 · ownership.xml · nonDerivative · entry 3

Nair Sidhartha · CIK 0002012708 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 36,806

F1 · price: These shares were purchased in one transaction at the disclosed price.

SEC source: 0001193125-26-108737 · ownership.xml · nonDerivative · entry 2

Nair Sidhartha · CIK 0002012708 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 35,806

F1 · price: These shares were purchased in one transaction at the disclosed price.

SEC source: 0001193125-26-089447 · ownership.xml · nonDerivative · entry 3

Colucci Anthony · CIK 0001803739 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 240,750

F3 · shares: The shares sold relate to a "sell to cover" transaction to pay tax withholding obligations on the issuance of vested PSUs and RSUs in accordance with the Company's 2020 Omnibus Incentive Plan.

F4 · price: The price reported in Column 4 reflects a weighted average price. The reporting person undertakes to provide the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, specific trade amounts and pricing within the ranges set forth below.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $7.05 to $7.07, inclusive.

SEC source: 0001193125-26-089445 · ownership.xml · nonDerivative · entry 3

Greenawalt Ryan · CIK 0001803431 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,721,710

F3 · shares: The shares sold relate to a "sell to cover" transaction to pay tax withholding obligations on the issuance of vested PSUs and RSUs in accordance with the Company's 2020 Omnibus Incentive Plan.

F4 · price: The price reported in Column 4 reflects a weighted average price. The reporting person undertakes to provide the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, specific trade amounts and pricing within the ranges set forth below.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $7.02 to $7.14, inclusive.

SEC source: 0001193125-26-108737 · ownership.xml · nonDerivative · entry 1

Nair Sidhartha · CIK 0002012708 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 34,806

F1 · price: These shares were purchased in one transaction at the disclosed price.

SEC source: 0001193125-26-089451 · ownership.xml · nonDerivative · entry 2

Hoover Jeffrey Alan · CIK 0002010490 · Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 83,161

F2 · security: The reporting person was granted restricted stock units ("RSUs") under the Alta Equipment Group Inc. 2020 Omnibus Incentive Plan. Each RSU represents the right to receive one share of Common Stock. The RSUs will vest annually over 3 years starting on February 14, 2027, subject to reporting person's continued employment with the Company.

F2 · price: The reporting person was granted restricted stock units ("RSUs") under the Alta Equipment Group Inc. 2020 Omnibus Incentive Plan. Each RSU represents the right to receive one share of Common Stock. The RSUs will vest annually over 3 years starting on February 14, 2027, subject to reporting person's continued employment with the Company.

SEC source: 0001193125-26-089451 · ownership.xml · nonDerivative · entry 1

Hoover Jeffrey Alan · CIK 0002010490 · Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 58,205

F1 · security: The reporting person was granted performance stock units ("PSUs") under the Alta Equipment Group Inc. 2020 Omnibus Incentive Plan. Each PSU represents the right to receive one share of Common Stock. The PSUs were earned on February 27, 2026 and will vest annually over 2 years starting on February 14, 2027, subject to reporting person's continued employment with the Company.

F1 · price: The reporting person was granted performance stock units ("PSUs") under the Alta Equipment Group Inc. 2020 Omnibus Incentive Plan. Each PSU represents the right to receive one share of Common Stock. The PSUs were earned on February 27, 2026 and will vest annually over 2 years starting on February 14, 2027, subject to reporting person's continued employment with the Company.

SEC source: 0001193125-26-089447 · ownership.xml · nonDerivative · entry 2

Colucci Anthony · CIK 0001803739 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 248,887

F2 · security: The reporting person was granted restricted stock units ("RSUs") under the Alta Equipment Group Inc. 2020 Omnibus Incentive Plan. Each RSU represents the right to receive one share of Common Stock. The RSUs will vest annually over 3 years starting on February 14, 2027, subject to reporting person's continued employment with the Company.

F2 · price: The reporting person was granted restricted stock units ("RSUs") under the Alta Equipment Group Inc. 2020 Omnibus Incentive Plan. Each RSU represents the right to receive one share of Common Stock. The RSUs will vest annually over 3 years starting on February 14, 2027, subject to reporting person's continued employment with the Company.

SEC source: 0001193125-26-089447 · ownership.xml · nonDerivative · entry 1

Colucci Anthony · CIK 0001803739 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 232,038

F1 · security: The reporting person was granted performance stock units ("PSUs") under the Alta Equipment Group Inc. 2020 Omnibus Incentive Plan. Each PSU represents the right to receive one share of Common Stock. The PSUs were earned on February 27, 2026 and will vest annually over 2 years starting on February 14, 2027, subject to reporting person's continued employment with the Company.

F1 · price: The reporting person was granted performance stock units ("PSUs") under the Alta Equipment Group Inc. 2020 Omnibus Incentive Plan. Each PSU represents the right to receive one share of Common Stock. The PSUs were earned on February 27, 2026 and will vest annually over 2 years starting on February 14, 2027, subject to reporting person's continued employment with the Company.

SEC source: 0001193125-26-089445 · ownership.xml · nonDerivative · entry 2

Greenawalt Ryan · CIK 0001803431 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,749,696

F2 · security: The reporting person was granted restricted stock units ("RSUs") under the Alta Equipment Group Inc. 2020 Omnibus Incentive Plan. Each RSU represents the right to receive one share of Common Stock. The RSUs will vest annually over 3 years starting on February 14, 2027, subject to reporting person's continued employment with the Company.

F2 · price: The reporting person was granted restricted stock units ("RSUs") under the Alta Equipment Group Inc. 2020 Omnibus Incentive Plan. Each RSU represents the right to receive one share of Common Stock. The RSUs will vest annually over 3 years starting on February 14, 2027, subject to reporting person's continued employment with the Company.

SEC source: 0001193125-26-089445 · ownership.xml · nonDerivative · entry 1

Greenawalt Ryan · CIK 0001803431 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,633,859

F1 · security: The reporting person was granted performance stock units ("PSUs") under the Alta Equipment Group Inc. 2020 Omnibus Incentive Plan. Each PSU represents the right to receive one share of Common Stock. The PSUs were earned on February 27, 2026 and will vest annually over 2 years starting on February 14, 2027, subject to reporting person's continued employment with the Company.

F1 · price: The reporting person was granted performance stock units ("PSUs") under the Alta Equipment Group Inc. 2020 Omnibus Incentive Plan. Each PSU represents the right to receive one share of Common Stock. The PSUs were earned on February 27, 2026 and will vest annually over 2 years starting on February 14, 2027, subject to reporting person's continued employment with the Company.

SEC source: 0001193125-26-124199 · ownership.xml · nonDerivative · entry 1

Hoover Jeffrey Alan · CIK 0002010490 · Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 84,730

F1 · security: The reporting person was granted performance stock units ("PSUs") under the Alta Equipment Group Inc. 2020 Omnibus Incentive Plan. Each PSU represents the right to receive one share of Common Stock. The PSUs were earned on February 27, 2026 and will vest annually over 2 years starting on February 14, 2027, subject to reporting person's continued employment with the Company.

F1 · price: The reporting person was granted performance stock units ("PSUs") under the Alta Equipment Group Inc. 2020 Omnibus Incentive Plan. Each PSU represents the right to receive one share of Common Stock. The PSUs were earned on February 27, 2026 and will vest annually over 2 years starting on February 14, 2027, subject to reporting person's continued employment with the Company.

SEC source: 0001193125-26-124198 · ownership.xml · nonDerivative · entry 1

Colucci Anthony · CIK 0001803739 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 241,809

F1 · security: The reporting person was granted performance stock units ("PSUs") under the Alta Equipment Group Inc. 2020 Omnibus Incentive Plan. Each PSU represents the right to receive one share of Common Stock. The PSUs were earned on February 27, 2026 and will vest annually over 2 years starting on February 14, 2027, subject to reporting person's continued employment with the Company.

F1 · price: The reporting person was granted performance stock units ("PSUs") under the Alta Equipment Group Inc. 2020 Omnibus Incentive Plan. Each PSU represents the right to receive one share of Common Stock. The PSUs were earned on February 27, 2026 and will vest annually over 2 years starting on February 14, 2027, subject to reporting person's continued employment with the Company.

SEC source: 0001193125-26-124197 · ownership.xml · nonDerivative · entry 1

Greenawalt Ryan · CIK 0001803431 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,728,993

F1 · security: The reporting person was granted performance stock units ("PSUs") under the Alta Equipment Group Inc. 2020 Omnibus Incentive Plan. Each PSU represents the right to receive one share of Common Stock. The PSUs were earned on February 27, 2026 and will vest annually over 2 years starting on February 14, 2027, subject to reporting person's continued employment with the Company.

F1 · price: The reporting person was granted performance stock units ("PSUs") under the Alta Equipment Group Inc. 2020 Omnibus Incentive Plan. Each PSU represents the right to receive one share of Common Stock. The PSUs were earned on February 27, 2026 and will vest annually over 2 years starting on February 14, 2027, subject to reporting person's continued employment with the Company.

SEC source: 0001193125-25-314355 · ownership.xml · nonDerivative · entry 1

Shribman Daniel · CIK 0001772389 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · Clamantis Holdings LLC

Disclosed balance after: 131,393

F1 · price: The price reported in Column 4 reflects a weighted average price. The reporting person undertakes to provide the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, specific trade amounts and pricing within the ranges set forth below.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $4.97 and $5.15, inclusive.

SEC source: 0000950170-25-080444 · ownership.xml · nonDerivative · entry 2

STUDDERT ANDREW P · CIK 0001053465 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 96,591

F1 · price: The price reported in Column 4 reflects a weighted average price. The reporting person undertakes to provide the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, specific trade amounts and pricing within the ranges set forth below.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in one transaction at a price of $4.805.

SEC source: 0000950170-25-081139 · ownership.xml · nonDerivative · entry 1

STUDDERT ANDREW P · CIK 0001053465 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 116,813

F1 · security: The reporting person was granted such time-based restricted stock units ("RSUs") for the annual director grant on the date of the 2025 Annual Meeting of Stockholders on May 30, 2025. Each RSU represents the right to receive one share of Common Stock. The RSUs vest 1/12th each month and fully vest on the date of the Annual Meeting of Stockholders 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 2025 Annual Meeting of Stockholders on May 30, 2025. Each RSU represents the right to receive one share of Common Stock. The RSUs vest 1/12th each month and fully vest on the date of the Annual Meeting of Stockholders the following year.

SEC source: 0000950170-25-081137 · ownership.xml · nonDerivative · entry 1

Nair Sidhartha · CIK 0002012708 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 33,806

F1 · security: The reporting person was granted such time-based restricted stock units ("RSUs") for the annual director grant on the date of the 2025 Annual Meeting of Stockholders on May 30, 2025. Each RSU represents the right to receive one share of Common Stock. Subject to the reporting person's election to defer the receipt of the RSUs to the reporting person's termination of service as a director, the RSUs vest 1/12th each month and fully vest on the date of the Annual Meeting of Stockholders 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 2025 Annual Meeting of Stockholders on May 30, 2025. Each RSU represents the right to receive one share of Common Stock. Subject to the reporting person's election to defer the receipt of the RSUs to the reporting person's termination of service as a director, the RSUs vest 1/12th each month and fully vest on the date of the Annual Meeting of Stockholders the following year.

SEC source: 0000950170-25-081138 · ownership.xml · nonDerivative · entry 2

WILSON COLIN · CIK 0001247998 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 29,034

F2 · security: The reporting person was granted such time-based restricted stock units ("RSUs") for the annual director grant on the date of the 2025 Annual Meeting of Stockholders on May 30, 2025. Each RSU represents the right to receive one share of Common Stock. Subject to the reporting person's election to defer the receipt of the RSUs to the reporting person's termination of service as a director, the RSUs vest 1/12th each month and fully vest on the date of the Annual Meeting of Stockholders the following year.

F2 · price: The reporting person was granted such time-based restricted stock units ("RSUs") for the annual director grant on the date of the 2025 Annual Meeting of Stockholders on May 30, 2025. Each RSU represents the right to receive one share of Common Stock. Subject to the reporting person's election to defer the receipt of the RSUs to the reporting person's termination of service as a director, the RSUs vest 1/12th each month and fully vest on the date of the Annual Meeting of Stockholders the following year.

SEC source: 0000950170-25-081138 · ownership.xml · nonDerivative · entry 1

WILSON COLIN · CIK 0001247998 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,812

F1 · security: The reporting person was granted such time-based restricted stock units ("RSUs") for the annual director grant on the date of the 2025 Annual Meeting of Stockholders on May 30, 2025. Each RSU represents the right to receive one share of Common Stock. The RSUs vested immediately due to the reporting person's service as a director from his appointment date, September 1, 2024 through the 2025 Annual Meeting of Stockholders and will be deferred subject to the reporting person's election to defer the receipt of the RSUs to the reporting person's termination of service as a director.

F1 · price: The reporting person was granted such time-based restricted stock units ("RSUs") for the annual director grant on the date of the 2025 Annual Meeting of Stockholders on May 30, 2025. Each RSU represents the right to receive one share of Common Stock. The RSUs vested immediately due to the reporting person's service as a director from his appointment date, September 1, 2024 through the 2025 Annual Meeting of Stockholders and will be deferred subject to the reporting person's election to defer the receipt of the RSUs to the reporting person's termination of service as a director.

SEC source: 0000950170-25-081136 · ownership.xml · nonDerivative · entry 1

White Katherine E · CIK 0001651356 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 67,301

F1 · security: The reporting person was granted such time-based restricted stock units ("RSUs") for the annual director grant on the date of the 2025 Annual Meeting of Stockholders on May 30, 2025. Each RSU represents the right to receive one share of Common Stock. Subject to the reporting person's election to defer the receipt of the RSUs to the reporting person's termination of service as a director, the RSUs vest 1/12th each month and fully vest on the date of the Annual Meeting of Stockholders 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 2025 Annual Meeting of Stockholders on May 30, 2025. Each RSU represents the right to receive one share of Common Stock. Subject to the reporting person's election to defer the receipt of the RSUs to the reporting person's termination of service as a director, the RSUs vest 1/12th each month and fully vest on the date of the Annual Meeting of Stockholders the following year.

SEC source: 0000950170-25-096333 · ownership.xml · nonDerivative · entry 3

Shribman Daniel · CIK 0001772389 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 346,893

F2 · security: The reporting person was granted such time-based restricted stock units ("RSUs") for the annual director grant on the date of the 2025 Annual Meeting of Stockholders on May 30, 2025. Each RSU represents the right to receive one share of Common Stock. Subject to the reporting person's election to defer the receipt of the RSUs to the reporting person's termination of service as a director, the RSUs vest 1/12th each month and fully vest on the date of the Annual Meeting of Stockholders the following year.

F2 · price: The reporting person was granted such time-based restricted stock units ("RSUs") for the annual director grant on the date of the 2025 Annual Meeting of Stockholders on May 30, 2025. Each RSU represents the right to receive one share of Common Stock. Subject to the reporting person's election to defer the receipt of the RSUs to the reporting person's termination of service as a director, the RSUs vest 1/12th each month and fully vest on the date of the Annual Meeting of Stockholders the following year.

SEC source: 0000950170-25-080444 · ownership.xml · nonDerivative · entry 1

STUDDERT ANDREW P · CIK 0001053465 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 93,334

F1 · price: The price reported in Column 4 reflects a weighted average price. The reporting person undertakes to provide the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, specific trade amounts and pricing within the ranges set forth below.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $4.79 and $4.8184, inclusive.

SEC source: 0000950170-25-042282 · ownership.xml · nonDerivative · entry 1

Hoover Jeffrey Alan · CIK 0002010490 · Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 42,513

F1 · security: The reporting person was granted restricted stock units ("RSUs") under the Alta Equipment Group Inc. 2020 Omnibus Incentive Plan. Each RSU represents the right to receive one share of Common Stock. The RSUs will vest annually over 3 years starting on February 14, 2026, subject to reporting person's continued employment with the Company.

F1 · price: The reporting person was granted restricted stock units ("RSUs") under the Alta Equipment Group Inc. 2020 Omnibus Incentive Plan. Each RSU represents the right to receive one share of Common Stock. The RSUs will vest annually over 3 years starting on February 14, 2026, subject to reporting person's continued employment with the Company.

SEC source: 0000950170-25-042283 · ownership.xml · nonDerivative · entry 1

Brubaker Craig · CIK 0001919311 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 112,832

F1 · security: The reporting person was granted restricted stock units ("RSUs") under the Alta Equipment Group Inc. 2020 Omnibus Incentive Plan. Each RSU represents the right to receive one share of Common Stock. The RSUs will vest annually over 3 years starting on February 14, 2026, subject to reporting person's continued employment with the Company.

F1 · price: The reporting person was granted restricted stock units ("RSUs") under the Alta Equipment Group Inc. 2020 Omnibus Incentive Plan. Each RSU represents the right to receive one share of Common Stock. The RSUs will vest annually over 3 years starting on February 14, 2026, subject to reporting person's continued employment with the Company.

SEC source: 0000950170-25-042285 · ownership.xml · nonDerivative · entry 1

Colucci Anthony · CIK 0001803739 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 221,443

F1 · security: The reporting person was granted restricted stock units ("RSUs") under the Alta Equipment Group Inc. 2020 Omnibus Incentive Plan. Each RSU represents the right to receive one share of Common Stock. The RSUs will vest annually over 3 years starting on February 14, 2026, subject to reporting person's continued employment with the Company.

F1 · price: The reporting person was granted restricted stock units ("RSUs") under the Alta Equipment Group Inc. 2020 Omnibus Incentive Plan. Each RSU represents the right to receive one share of Common Stock. The RSUs will vest annually over 3 years starting on February 14, 2026, subject to reporting person's continued employment with the Company.

SEC source: 0000950170-25-042284 · ownership.xml · nonDerivative · entry 1

Greenawalt Ryan · CIK 0001803431 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,561,027

F1 · security: The reporting person was granted restricted stock units ("RSUs") under the Alta Equipment Group Inc. 2020 Omnibus Incentive Plan. Each RSU represents the right to receive one share of Common Stock. The RSUs will vest annually over 3 years starting on February 14, 2026, subject to reporting person's continued employment with the Company.

F1 · price: The reporting person was granted restricted stock units ("RSUs") under the Alta Equipment Group Inc. 2020 Omnibus Incentive Plan. Each RSU represents the right to receive one share of Common Stock. The RSUs will vest annually over 3 years starting on February 14, 2026, subject to reporting person's continued employment with the Company.

SEC source: 0000950170-25-035087 · ownership.xml · nonDerivative · entry 1

Brubaker Craig · CIK 0001919311 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 98,640

F1 · shares: The shares sold relate to a "sell to cover" transaction to pay tax withholding obligations on the vesting of previously issued performance and restricted stock units in accordance with the Company's 2020 Omnibus Incentive Plan.

SEC source: 0000950170-25-096333 · ownership.xml · nonDerivative · entry 2

Shribman Daniel · CIK 0001772389 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · Clamantis Holdings LLC

Disclosed balance after: 91,393

F1 · kind: On January 24, 2025, in connection with his estate planning, Mr. Shribman transferred 91,393 shares of the issuer's common stock for no consideration to Clamantis Holdings, LLC, an entity 100% owned and controlled by Mr. Shribman. Mr. Shribman has voting power over the shares as owner of Clamantis Holdings, LLC.

F1 · price: On January 24, 2025, in connection with his estate planning, Mr. Shribman transferred 91,393 shares of the issuer's common stock for no consideration to Clamantis Holdings, LLC, an entity 100% owned and controlled by Mr. Shribman. Mr. Shribman has voting power over the shares as owner of Clamantis Holdings, LLC.

SEC source: 0000950170-25-096333 · ownership.xml · nonDerivative · entry 1

Shribman Daniel · CIK 0001772389 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 326,671

F1 · kind: On January 24, 2025, in connection with his estate planning, Mr. Shribman transferred 91,393 shares of the issuer's common stock for no consideration to Clamantis Holdings, LLC, an entity 100% owned and controlled by Mr. Shribman. Mr. Shribman has voting power over the shares as owner of Clamantis Holdings, LLC.

F1 · price: On January 24, 2025, in connection with his estate planning, Mr. Shribman transferred 91,393 shares of the issuer's common stock for no consideration to Clamantis Holdings, LLC, an entity 100% owned and controlled by Mr. Shribman. Mr. Shribman has voting power over the shares as owner of Clamantis Holdings, LLC.

SEC source: 0000950170-25-007862 · ownership.xml · derivative · entry 2

Mill Road Capital III, L.P. · CIK 0001767199 · 10% owner

Mill Road Capital III GP LLC · CIK 0001767178 · 10% owner

LYNCH THOMAS E · CIK 0001244666 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 23,700 shares

Expires 2025-01-17

F2 · derivative.exercise_date: Each put option became exercisable on the date purchased, which dates range from 7/24/2024 to 7/29/2024.

F1 · ownership.direct: The shares reported are directly held by Mill Road Capital III, L.P. (the "Fund"). Mill Road Capital III GP LLC (the "GP") is the sole general partner of the Fund and has sole authority to vote (or direct the vote of), and to dispose (or direct the disposal) of, these shares on behalf of the Fund. Mr. Lynch is a management committee director of the GP and has shared authority to vote (or direct the vote of), and to dispose (or direct the disposal) of, these shares on behalf of the GP. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any.

SEC source: 0000950170-25-007862 · ownership.xml · nonDerivative · entry 1

Mill Road Capital III, L.P. · CIK 0001767199 · 10% owner

Mill Road Capital III GP LLC · CIK 0001767178 · 10% owner

LYNCH THOMAS E · CIK 0001244666 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,293,208

F1 · ownership.direct: The shares reported are directly held by Mill Road Capital III, L.P. (the "Fund"). Mill Road Capital III GP LLC (the "GP") is the sole general partner of the Fund and has sole authority to vote (or direct the vote of), and to dispose (or direct the disposal) of, these shares on behalf of the Fund. Mr. Lynch is a management committee director of the GP and has shared authority to vote (or direct the vote of), and to dispose (or direct the disposal) of, these shares on behalf of the GP. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any.

SEC source: 0000950170-24-139114 · ownership.xml · derivative · entry 4

Mill Road Capital III, L.P. · CIK 0001767199 · 10% owner

Mill Road Capital III GP LLC · CIK 0001767178 · 10% owner

LYNCH THOMAS E · CIK 0001244666 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 237

Underlying: Common Stock · 20,600 shares

Expires 2025-01-17

F2 · derivative.exercise_date: Each put option became exercisable on the date purchased, which dates range from 7/24/2024 to 7/29/2024.

F1 · ownership.direct: The shares reported are directly held by Mill Road Capital III, L.P. (the "Fund"). Mill Road Capital III GP LLC (the "GP") is the sole general partner of the Fund and has sole authority to vote (or direct the vote of), and to dispose (or direct the disposal) of, these shares on behalf of the Fund. Mr. Lynch is a management committee director of the GP and has shared authority to vote (or direct the vote of), and to dispose (or direct the disposal) of, these shares on behalf of the GP. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any.

SEC source: 0000950170-24-139114 · ownership.xml · nonDerivative · entry 2

Mill Road Capital III, L.P. · CIK 0001767199 · 10% owner

Mill Road Capital III GP LLC · CIK 0001767178 · 10% owner

LYNCH THOMAS E · CIK 0001244666 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,269,508

F1 · ownership.direct: The shares reported are directly held by Mill Road Capital III, L.P. (the "Fund"). Mill Road Capital III GP LLC (the "GP") is the sole general partner of the Fund and has sole authority to vote (or direct the vote of), and to dispose (or direct the disposal) of, these shares on behalf of the Fund. Mr. Lynch is a management committee director of the GP and has shared authority to vote (or direct the vote of), and to dispose (or direct the disposal) of, these shares on behalf of the GP. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any.

SEC source: 0000950170-24-139114 · ownership.xml · derivative · entry 3

Mill Road Capital III, L.P. · CIK 0001767199 · 10% owner

Mill Road Capital III GP LLC · CIK 0001767178 · 10% owner

LYNCH THOMAS E · CIK 0001244666 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 443

Underlying: Common Stock · 500 shares

Expires 2025-01-17

F2 · derivative.exercise_date: Each put option became exercisable on the date purchased, which dates range from 7/24/2024 to 7/29/2024.

F1 · ownership.direct: The shares reported are directly held by Mill Road Capital III, L.P. (the "Fund"). Mill Road Capital III GP LLC (the "GP") is the sole general partner of the Fund and has sole authority to vote (or direct the vote of), and to dispose (or direct the disposal) of, these shares on behalf of the Fund. Mr. Lynch is a management committee director of the GP and has shared authority to vote (or direct the vote of), and to dispose (or direct the disposal) of, these shares on behalf of the GP. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any.

SEC source: 0000950170-24-139114 · ownership.xml · nonDerivative · entry 1

Mill Road Capital III, L.P. · CIK 0001767199 · 10% owner

Mill Road Capital III GP LLC · CIK 0001767178 · 10% owner

LYNCH THOMAS E · CIK 0001244666 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,248,908

F1 · ownership.direct: The shares reported are directly held by Mill Road Capital III, L.P. (the "Fund"). Mill Road Capital III GP LLC (the "GP") is the sole general partner of the Fund and has sole authority to vote (or direct the vote of), and to dispose (or direct the disposal) of, these shares on behalf of the Fund. Mr. Lynch is a management committee director of the GP and has shared authority to vote (or direct the vote of), and to dispose (or direct the disposal) of, these shares on behalf of the GP. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any.

SEC source: 0000950170-24-137919 · ownership.xml · derivative · entry 4

Mill Road Capital III, L.P. · CIK 0001767199 · 10% owner

Mill Road Capital III GP LLC · CIK 0001767178 · 10% owner

LYNCH THOMAS E · CIK 0001244666 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 448

Underlying: Common Stock · 200 shares

Expires 2025-01-17

F2 · derivative.exercise_date: Each put option became exercisable on the date purchased, which dates range from 7/24/2024 to 7/29/2024.

F1 · ownership.direct: The shares reported are directly held by Mill Road Capital III, L.P. (the "Fund"). Mill Road Capital III GP LLC (the "GP") is the sole general partner of the Fund and has sole authority to vote (or direct the vote of), and to dispose (or direct the disposal) of, these shares on behalf of the Fund. Mr. Lynch is a management committee director of the GP and has shared authority to vote (or direct the vote of), and to dispose (or direct the disposal) of, these shares on behalf of the GP. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any.

SEC source: 0000950170-24-137919 · ownership.xml · nonDerivative · entry 2

Mill Road Capital III, L.P. · CIK 0001767199 · 10% owner

Mill Road Capital III GP LLC · CIK 0001767178 · 10% owner

LYNCH THOMAS E · CIK 0001244666 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,248,408

F1 · ownership.direct: The shares reported are directly held by Mill Road Capital III, L.P. (the "Fund"). Mill Road Capital III GP LLC (the "GP") is the sole general partner of the Fund and has sole authority to vote (or direct the vote of), and to dispose (or direct the disposal) of, these shares on behalf of the Fund. Mr. Lynch is a management committee director of the GP and has shared authority to vote (or direct the vote of), and to dispose (or direct the disposal) of, these shares on behalf of the GP. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any.

SEC source: 0000950170-24-137919 · ownership.xml · derivative · entry 3

Mill Road Capital III, L.P. · CIK 0001767199 · 10% owner

Mill Road Capital III GP LLC · CIK 0001767178 · 10% owner

LYNCH THOMAS E · CIK 0001244666 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 450

Underlying: Common Stock · 35,000 shares

Expires 2025-01-17

F2 · derivative.exercise_date: Each put option became exercisable on the date purchased, which dates range from 7/24/2024 to 7/29/2024.

F1 · ownership.direct: The shares reported are directly held by Mill Road Capital III, L.P. (the "Fund"). Mill Road Capital III GP LLC (the "GP") is the sole general partner of the Fund and has sole authority to vote (or direct the vote of), and to dispose (or direct the disposal) of, these shares on behalf of the Fund. Mr. Lynch is a management committee director of the GP and has shared authority to vote (or direct the vote of), and to dispose (or direct the disposal) of, these shares on behalf of the GP. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any.

SEC source: 0000950170-24-137919 · ownership.xml · nonDerivative · entry 1

Mill Road Capital III, L.P. · CIK 0001767199 · 10% owner

Mill Road Capital III GP LLC · CIK 0001767178 · 10% owner

LYNCH THOMAS E · CIK 0001244666 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,248,208

F1 · ownership.direct: The shares reported are directly held by Mill Road Capital III, L.P. (the "Fund"). Mill Road Capital III GP LLC (the "GP") is the sole general partner of the Fund and has sole authority to vote (or direct the vote of), and to dispose (or direct the disposal) of, these shares on behalf of the Fund. Mr. Lynch is a management committee director of the GP and has shared authority to vote (or direct the vote of), and to dispose (or direct the disposal) of, these shares on behalf of the GP. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any.

SEC source: 0000921895-24-002438 · form410925013_11012024.xml · nonDerivative · entry 1

Voss Capital, LP · CIK 0001730145 · 10% owner

Voss Value Master Fund, LP · CIK 0001969435 · 10% owner

Voss Value-Oriented Special Situations Fund, LP · CIK 0001863498 · 10% owner

Voss Advisors GP, LLC · CIK 0001798309 · 10% owner

Cocke Travis W. · CIK 0001798383 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · By: Voss Value Master Fund, L.P.

Disclosed balance after: 963,689

F1 · security: This Form 4 is filed jointly by Voss Value Master Fund, L.P. ("Voss Value Master Fund"), Voss Value-Oriented Special Situations Fund, L.P. ("Voss Value-Oriented Special Situations Fund"), Voss Advisors GP, LLC ("Voss GP"), Voss Capital, L.P. ("Voss Capital") and Travis W. Cocke (collectively, the "Reporting Persons"). Each Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of his or its pecuniary interest therein, and this report shall not be deemed to be an admission that any Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.

F2 · ownership.nature: Securities owned directly by Voss Value Master Fund. Voss GP, as the general partner of Voss Value Master Fund, may be deemed to beneficially own the securities owned directly by Voss Value Master Fund. Voss Capital, as the investment manager of Voss Value Master Fund, may be deemed to beneficially own the securities owned directly by Voss Value Master Fund. Mr. Cocke, as the managing member of Voss Capital and Voss GP, may be deemed to beneficially own the securities owned directly by Voss Value Master Fund.