SEC Form 4

FORM 4		UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940	OMB APPROVAL OMB Number: 3235-0287 Estimated average burden hours per response: 0.5
	Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person* KING LUTHER CAPITAL MANAGEMENT CORP (Last) (First) (Middle) 301 COMMERCE SUITE 1600 (Street) FORT WORTH TX 76102 (City) (State) (Zip)	2. Issuer Name and Ticker or Trading Symbol LAWSON PRODUCTS INC/NEW/DE/ [ LAWS ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) Director X 10% Owner Officer (give title below) Other (specify below)
	3. Date of Earliest Transaction (Month/Day/Year) 03/06/2018
	4. If Amendment, Date of Original Filed (Month/Day/Year)	6. Individual or Joint/Group Filing (Check Applicable Line) Form filed by One Reporting Person X Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	03/06/2018		P		120,000	A	$24.9996	2,574,202	I	See footnotes(1)(2)(3)(4)

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

1. Name and Address of Reporting Person* KING LUTHER CAPITAL MANAGEMENT CORP (Last) (First) (Middle) 301 COMMERCE SUITE 1600 (Street) FORT WORTH TX 76102 (City) (State) (Zip)

1. Name and Address of Reporting Person* LKCM Private Discipline Master Fund, SPC (Last) (First) (Middle) C/O LKCM PRIVATE DISCIPLINE MANAGEMENT, 301 COMMERCE STREET, SUITE 1600 (Street) FORT WORTH TX 76102 (City) (State) (Zip)

1. Name and Address of Reporting Person* LKCM Investment Partnership, L.P. (Last) (First) (Middle) 301 COMMERCE STREET SUITE 1600 (Street) FORT WORTH TX 76102 (City) (State) (Zip)

1. Name and Address of Reporting Person* LKCM Micro-Cap Partnership, L.P. (Last) (First) (Middle) 301 COMMERCE STREET SUITE 1600 (Street) FORT WORTH TX 76102 (City) (State) (Zip)

1. Name and Address of Reporting Person* LKCM Core Discipline, L.P. (Last) (First) (Middle) 301 COMMERCE STREET, SUITE 1600 (Street) FORT WORTH TX 76102 (City) (State) (Zip)

1. Name and Address of Reporting Person* LKCM Headwater Investments II, L.P. (Last) (First) (Middle) 301 COMMERCE STREET SUITE 1600 (Street) FORT WORTH TX 76102 (City) (State) (Zip)

1. Name and Address of Reporting Person* King Luther Jr (Last) (First) (Middle) 301 COMMERCE STREET, SUITE 1600 (Street) FORT WORTH TX 76102 (City) (State) (Zip)

1. Name and Address of Reporting Person* King John Bryan (Last) (First) (Middle) 301 COMMERCE STREET SUITE 1600 (Street) FORT WORTH TX 76102 (City) (State) (Zip)

Explanation of Responses:

1. This Form 4 is filed by Luther King Capital Management Corporation (LKCM), LKCM Private Discipline Master Fund, SPC (PDP), LKCM Investment Partnership, L.P. (LIP), LKCM Micro-Cap Partnership, L.P. (Micro), LKCM Core Discipline, L.P. (Core), LKCM Headwater Investments II, L.P. (HW), J. Luther King, Jr. and J. Bryan King (Reporting Persons). LKCM Private Discipline Management, L.P. holds the management shares of PDP, and LKCM Alternative Management, LLC (PDP GP) is its general partner. LKCM Investment Partnership GP, LLC (LIP GP) is the general partner of LIP. 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.

2. LKCM is the investment manager for PDP, LIP, Micro, Core and HW. J. Luther King, Jr. is a controlling shareholder or member, as applicable, of LKCM and LIP GP. J. Bryan King is a controlling member of HW GP and a director of the issuer. J. Luther King, Jr. and J. Bryan King are controlling members of PDP GP, Micro GP and Core GP.

3. Includes (i) 1,689,358 shares held by PDP, (ii) 250,000 shares held by LIP, (iii) 26,102 shares held by Micro, (iv) 10,128 shares held by Core, (v) 592,326 shares held by HW, (vi) 2,500 shares held by a separately managed portfolio for which LKCM serves as investment adviser, and (vii) 3,788 restricted shares held by J. Bryan King.

4. Each of the Reporting Persons expressly disclaims membership in a group under the Securities Exchange Act of 1934, as amended, with respect to the securities reported herein, and this Form 4 shall not be deemed to be an admission that any such Reporting Person is a member of such a group. Each of the Reporting Persons expressly disclaims beneficial ownership of the securities reported herein, except to the extent of its pecuniary interest therein, and this Form 4 shall not be deemed to be an admission that any such Reporting Person is the beneficial owner of such securities for purposes of the Securities Exchange Act of 1934, as amended, or for any other purpose.

	J. Bryan King, for Luther King Capital Management Corporation	03/07/2018
	J. Bryan King, for LKCM Private Discipline Master Fund, SPC	03/07/2018
	J. Luther King, Jr., for LKCM Investment Partnership, L.P.	03/07/2018
	J. Bryan King, for LKCM Micro-Cap Partnership, L.P.	03/07/2018
	J. Bryan King, for LKCM Core Discipline, L.P.	03/07/2018
	J. Bryan King, for LKCM Headwater Investments II, L.P.	03/07/2018
	J. Luther King, Jr.	03/07/2018
	J. Bryan King	03/07/2018
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
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