Distribution Solutions Group, Inc. — Director's Dealing 2017

May 24, 2017

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: LAWSON PRODUCTS INC/NEW/DE/ (LAWS)
CIK: 0000703604
Period of Report: 2017-05-23

Reporting Person: King John Bryan (Director, 10% Owner)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2017-05-23	Common Stock	P	353	$18.8321	Acquired	1958557	Indirect
2017-05-23	Common Stock	P	400	$18.8	Acquired	1958957	Indirect
2017-05-24	Common Stock	P	104	$19.85	Acquired	1959061	Indirect
2017-05-24	Common Stock	P	200	$19.5	Acquired	1959261	Indirect

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	3788	Direct

Footnotes

F1: Includes (i) 1,689,358 shares held by LKCM Private Discipline Master Fund, SPC (PDP), (ii) 26,102 shares held by LKCM Micro-Cap Partnership, L.P. (Micro), (iii) 10,128 shares held by LKCM Core Discipline, L.P. (Core), and (iv) 233,673 shares held by LKCM Headwater Investments II, L.P. (HW).

F2: LKCM Private Discipline Management, L.P. holds the management shares of PDP, and LKCM Alternative Management, LLC (PDP GP) is its general partner. LKCM Micro-Cap Management, L.P. (Micro GP) is the general partner of Micro. LKCM Core Discipline Management, L.P. (Core GP) is the general partner of Core. LKCM Headwater Investments II GP, L.P. (HW GP) is the general partner of HW. Mr. King is a controlling member of PDP GP, Micro GP, Core GP and HW GP. Mr. King expressly disclaims beneficial ownership of the securities reported herein, except to the extent of his pecuniary interest therein.