X0407 4/A 2022-11-25 2022-11-29 0 0000703604 Distribution Solutions Group, Inc. DSGR 0001029739 HILLMAN LEE S 8770 W. BRYN MAWR AVE. SUITE 900 C/O DISTRIBUTION SOLUTIONS GROUP, INC. CHICAGO IL 60631 1 0 0 0 0 Common Stock (Restricted Stock Units) 2022-11-25 4 A 0 2034 0.00 A 46842 D These Restricted Stock Units will vest on November 25, 2023 and convert to shares of Common Stock. The original Form 4 filed on November 29, 2022 incorrectly reported that following the reported transaction, the Reporting Person beneficially owned 2,034 shares of Common Stock. Instead, following the reported transaction, the Reporting Person beneficially owned 46,842 shares of Common Stock. This amended Form 4 is being filed to correct that error. The original Form 4 also mistakenly indicated that the Issuer's Trading Symbol is "LAWS". The correct Trading Symbol is "DSGR". /s/ Richard D. Pufpaf, Attorney-In-Fact for Lee S. Hillman 2023-06-05