LKCM Headwater Investments II, L.P.

SEC source: 0001955947-23-000003 · primary_doc.xml · nonDerivative · entry 1

KING LUTHER CAPITAL MANAGEMENT CORP · CIK 0000310051 · 10% owner

King John Bryan · CIK 0001406297 · Director · 10% owner

King Luther Jr · CIK 0001290407 · 10% owner

LKCM Private Discipline Master Fund, SPC · CIK 0001406372 · 10% owner

LKCM Investment Partnership, L.P. · CIK 0001406371 · 10% owner

LKCM Micro-Cap Partnership, L.P. · CIK 0001502285 · 10% owner

LKCM Headwater Investments II, L.P. · CIK 0001621801 · 10% owner

LKCM Headwater II Sidecar Partnership, L.P. · CIK 0001713995 · 10% owner

LKCM Headwater Investments III, L.P. · CIK 0001764096 · 10% owner

LKCM Headwater Investments IV, L.P. · CIK 0001955947 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 18,198,304

F1 · kind: 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 Core Discipline, L.P. (Core), LKCM Micro-Cap Partnership, L.P. (Micro), LKCM Headwater Investments II, L.P. (HW2), LKCM Headwater II Sidecar Partnership, L.P. (Sidecar), Headwater Lawson Investors, LLC (HLI), LKCM Headwater Investments III, L.P. (HW3), LKCM Headwater Investments IV, L.P. (HW4), LKCM TE Investors, LLC ("TestEquity Investors"), 301 HW Opus Investors, LLC ("Gexpro Investors"), J. Luther King, Jr. and J. Bryan King (Reporting Persons).

F2 · kind: 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 Core Discipline Management, L.P. (Core GP) is the general partner of Core. LKCM Micro-Cap Management, L.P. (Micro GP) is the general partner of Micro. LKCM Headwater Investments II GP, L.P. (HW2 GP) is the general partner of HW2. LKCM Headwater II Sidecar Partnership GP, L.P. (Sidecar GP) is the general partner of Sidecar. LKCM Headwater Investments III GP, L.P. (HW3 GP) is the general partner of HW3. LKCM Headwater Investments IV GP, L.P. (HW4 GP) is the general partner of HW4. LKCM Headwater Investments GP, LLC (Ultimate GP) is the general partner of each of HW2 GP, Sidecar GP, HW3 GP, and HW4 GP. HW2 and Sidecar are the beneficial owners of HLI and TestEquity Investors, and HW3 is the beneficial owner of Gexpro Investors.

F3 · kind: LKCM is the investment manager for each of PDP, LIP, Core, Micro, HW2, Sidecar, HW3 and HW4. J. Luther King, Jr. is the controlling shareholder of LKCM and the controlling member of LIP GP. J. Bryan King is the controlling member of each of PDP GP, Core GP, Micro GP, HW2 GP, Sidecar GP, HW3 GP, HW4 GP, and HLI. J. Luther King, Jr. and J. Bryan King are controlling members of Ultimate GP.

F4 · kind: On May 9, 2023, the Issuer commenced a subscription rights offering (Rights Offering) pursuant to which the holders of Common Stock as of the close of business on May 1, 2023 or their transferees had the right to purchase up to an aggregate of 2,222,222 shares of Common Stock from the Issuer at a purchase price of $45.00 per share. In connection with the Rights Offering, (i) LIP acquired 26,250 shares of Common Stock, (ii) HW4 acquired 1,716,995 shares of Common Stock, (iii) Micro acquired 1,408 shares of Common Stock, (iv) Core acquired 1,101 shares of Common Stock, (v) a separately managed portfolio for which LKCM serves as investment adviser acquired 262 shares of Common Stock, (vi) PDP acquired 89,243 shares of Common Stock, and (vii) J. Bryan King acquired 2,489 shares of Common Stock.

F4 · shares: On May 9, 2023, the Issuer commenced a subscription rights offering (Rights Offering) pursuant to which the holders of Common Stock as of the close of business on May 1, 2023 or their transferees had the right to purchase up to an aggregate of 2,222,222 shares of Common Stock from the Issuer at a purchase price of $45.00 per share. In connection with the Rights Offering, (i) LIP acquired 26,250 shares of Common Stock, (ii) HW4 acquired 1,716,995 shares of Common Stock, (iii) Micro acquired 1,408 shares of Common Stock, (iv) Core acquired 1,101 shares of Common Stock, (v) a separately managed portfolio for which LKCM serves as investment adviser acquired 262 shares of Common Stock, (vi) PDP acquired 89,243 shares of Common Stock, and (vii) J. Bryan King acquired 2,489 shares of Common Stock.

F4 · price: On May 9, 2023, the Issuer commenced a subscription rights offering (Rights Offering) pursuant to which the holders of Common Stock as of the close of business on May 1, 2023 or their transferees had the right to purchase up to an aggregate of 2,222,222 shares of Common Stock from the Issuer at a purchase price of $45.00 per share. In connection with the Rights Offering, (i) LIP acquired 26,250 shares of Common Stock, (ii) HW4 acquired 1,716,995 shares of Common Stock, (iii) Micro acquired 1,408 shares of Common Stock, (iv) Core acquired 1,101 shares of Common Stock, (v) a separately managed portfolio for which LKCM serves as investment adviser acquired 262 shares of Common Stock, (vi) PDP acquired 89,243 shares of Common Stock, and (vii) J. Bryan King acquired 2,489 shares of Common Stock.

F5 · balance_after: Includes (i) 1,789,114 shares held by PDP, (ii) 276,250 shares held by LIP, (iii) 28,235 shares held by Micro, (iv) 11,591 shares held by Core, (v) 1,761,494 shares held by HLI, (vi) 592,326 shares held by HW2, (vii) 8,000,000 shares held by Gexpro Investors, (viii) 4,000,000 shares held by TestEquity Investors, (ix) 1,716,995 shares held by HW4, (x) 2,762 shares held by a separately managed portfolio for which LKCM serves as investment manager, and (xi) 19,537 shares held directly by J. Bryan King.

F1 · ownership.nature: 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 Core Discipline, L.P. (Core), LKCM Micro-Cap Partnership, L.P. (Micro), LKCM Headwater Investments II, L.P. (HW2), LKCM Headwater II Sidecar Partnership, L.P. (Sidecar), Headwater Lawson Investors, LLC (HLI), LKCM Headwater Investments III, L.P. (HW3), LKCM Headwater Investments IV, L.P. (HW4), LKCM TE Investors, LLC ("TestEquity Investors"), 301 HW Opus Investors, LLC ("Gexpro Investors"), J. Luther King, Jr. and J. Bryan King (Reporting Persons).

F2 · ownership.nature: 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 Core Discipline Management, L.P. (Core GP) is the general partner of Core. LKCM Micro-Cap Management, L.P. (Micro GP) is the general partner of Micro. LKCM Headwater Investments II GP, L.P. (HW2 GP) is the general partner of HW2. LKCM Headwater II Sidecar Partnership GP, L.P. (Sidecar GP) is the general partner of Sidecar. LKCM Headwater Investments III GP, L.P. (HW3 GP) is the general partner of HW3. LKCM Headwater Investments IV GP, L.P. (HW4 GP) is the general partner of HW4. LKCM Headwater Investments GP, LLC (Ultimate GP) is the general partner of each of HW2 GP, Sidecar GP, HW3 GP, and HW4 GP. HW2 and Sidecar are the beneficial owners of HLI and TestEquity Investors, and HW3 is the beneficial owner of Gexpro Investors.

F3 · ownership.nature: LKCM is the investment manager for each of PDP, LIP, Core, Micro, HW2, Sidecar, HW3 and HW4. J. Luther King, Jr. is the controlling shareholder of LKCM and the controlling member of LIP GP. J. Bryan King is the controlling member of each of PDP GP, Core GP, Micro GP, HW2 GP, Sidecar GP, HW3 GP, HW4 GP, and HLI. J. Luther King, Jr. and J. Bryan King are controlling members of Ultimate GP.

F4 · ownership.nature: On May 9, 2023, the Issuer commenced a subscription rights offering (Rights Offering) pursuant to which the holders of Common Stock as of the close of business on May 1, 2023 or their transferees had the right to purchase up to an aggregate of 2,222,222 shares of Common Stock from the Issuer at a purchase price of $45.00 per share. In connection with the Rights Offering, (i) LIP acquired 26,250 shares of Common Stock, (ii) HW4 acquired 1,716,995 shares of Common Stock, (iii) Micro acquired 1,408 shares of Common Stock, (iv) Core acquired 1,101 shares of Common Stock, (v) a separately managed portfolio for which LKCM serves as investment adviser acquired 262 shares of Common Stock, (vi) PDP acquired 89,243 shares of Common Stock, and (vii) J. Bryan King acquired 2,489 shares of Common Stock.

F5 · ownership.nature: Includes (i) 1,789,114 shares held by PDP, (ii) 276,250 shares held by LIP, (iii) 28,235 shares held by Micro, (iv) 11,591 shares held by Core, (v) 1,761,494 shares held by HLI, (vi) 592,326 shares held by HW2, (vii) 8,000,000 shares held by Gexpro Investors, (viii) 4,000,000 shares held by TestEquity Investors, (ix) 1,716,995 shares held by HW4, (x) 2,762 shares held by a separately managed portfolio for which LKCM serves as investment manager, and (xi) 19,537 shares held directly by J. Bryan King.

F6 · ownership.nature: 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 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 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.

SEC source: 0000310051-23-000005 · primary_doc.xml · nonDerivative · entry 1

KING LUTHER CAPITAL MANAGEMENT CORP · CIK 0000310051 · 10% owner

LKCM Private Discipline Master Fund, SPC · CIK 0001406372 · 10% owner

LKCM Investment Partnership, L.P. · CIK 0001406371 · 10% owner

LKCM Core Discipline, L.P. · CIK 0001502283 · 10% owner

LKCM Micro-Cap Partnership, L.P. · CIK 0001502285 · 10% owner

LKCM Headwater Investments II, L.P. · CIK 0001621801 · 10% owner

LKCM Headwater II Sidecar Partnership, L.P. · CIK 0001713995 · 10% owner

LKCM Headwater Investments III, L.P. · CIK 0001764096 · 10% owner

King Luther Jr · CIK 0001290407 · 10% owner

King John Bryan · CIK 0001406297 · Director · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 16,360,556

F1 · kind: On March 20, 2023, the Issuer issued (i) 700,000 shares of Common Stock to LKCM TE Investors, LLC (TestEquity Investors) pursuant to the terms of the earnout provisions of the Agreement and Plan of Merger, dated December 29, 2021, by and among TestEquity Investors, the Issuer and the other parties thereto, and (ii) 1,000,000 shares of Common Stock to 301 HW Opus Investors, LLC (Gexpro Investors) pursuant to the terms of the earnout provisions of the Agreement and Plan of Merger, dated December 29, 2021, by and among Gexpro Investors, the Issuer and the other parties thereto.

F1 · shares: On March 20, 2023, the Issuer issued (i) 700,000 shares of Common Stock to LKCM TE Investors, LLC (TestEquity Investors) pursuant to the terms of the earnout provisions of the Agreement and Plan of Merger, dated December 29, 2021, by and among TestEquity Investors, the Issuer and the other parties thereto, and (ii) 1,000,000 shares of Common Stock to 301 HW Opus Investors, LLC (Gexpro Investors) pursuant to the terms of the earnout provisions of the Agreement and Plan of Merger, dated December 29, 2021, by and among Gexpro Investors, the Issuer and the other parties thereto.

F2 · price: Not applicable.

F3 · ownership.nature: 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 Core Discipline, L.P. (Core), LKCM Micro-Cap Partnership, L.P. (Micro), LKCM Headwater Investments II, L.P. (HW2), LKCM Headwater II Sidecar Partnership, L.P. (Sidecar), Headwater Lawson Investors, LLC (HLI), LKCM Headwater Investments III, L.P. (HW3), TestEquity Investors, Gexpro Investors, J. Luther King, Jr. and J. Bryan King (Reporting Persons).

F4 · ownership.nature: 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 Core Discipline Management, L.P. (Core GP) is the general partner of Core. LKCM Micro-Cap Management, L.P. (Micro GP) is the general partner of Micro. LKCM Headwater Investments II GP, L.P. (HW2 GP) is the general partner of HW2. LKCM Headwater II Sidecar Partnership GP, L.P. (Sidecar GP) is the general partner of Sidecar. LKCM Headwater Investments III GP, L.P. (HW3 GP) is the general partner of HW3. LKCM Headwater Investments GP, LLC (Ultimate GP) is the general partner of each of HW2 GP, Sidecar GP, and HW3 GP. HW2 and Sidecar are the beneficial owners of HLI and TestEquity Investors, and HW3 is the beneficial owner of Gexpro Investors.

F5 · ownership.nature: Includes (i) 1,699,871 shares held by PDP, (ii) 250,000 shares held by LIP, (iii) 26,827 shares held by Micro, (iv) 10,490 shares held by Core, (v) 1,761,494 shares held by HLI, (vi) 592,326 shares held by HW2, (vii) 8,000,000 shares held by Gexpro Investors, (viii) 4,000,000 shares held by TestEquity Investors, (ix) 2,500 shares held by a separately managed portfolio for which LKCM serves as investment manager, and (x) 17,048 shares held directly by J. Bryan King.

F6 · ownership.nature: 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 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 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.

SEC source: 0000310051-22-000009 · primary_doc.xml · nonDerivative · entry 1

KING LUTHER CAPITAL MANAGEMENT CORP · CIK 0000310051 · 10% owner

King John Bryan · CIK 0001406297 · Director · 10% owner

King Luther Jr · CIK 0001290407 · 10% owner

LKCM Private Discipline Master Fund, SPC · CIK 0001406372 · 10% owner

LKCM Investment Partnership, L.P. · CIK 0001406371 · 10% owner

301 HW Opus Investors, LLC · CIK 0001921598 · 10% owner

LKCM TE Investors, LLC · CIK 0001921624 · 10% owner

LKCM Headwater Investments II, L.P. · CIK 0001621801 · 10% owner

LKCM Headwater Investments III, L.P. · CIK 0001764096 · 10% owner

LKCM Micro-Cap Partnership, L.P. · CIK 0001502285 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 14,660,556

F1 · kind: On June 15, 2022, J. Bryan King purchased 10,000 shares of common stock at a purchase price of $51 per share in a private transaction.

F2 · ownership.nature: This Form 4 is filed by Luther King Capital Management Corporation (LKCM), LKCM Private Discipline Master Fund, SPC (PDP), LKCM Core Discipline, L.P. (Core), LKCM Micro-Cap Partnership, L.P. (Micro), LKCM Investment Partnership, L.P. (LIP), LKCM Headwater Investments II, L.P. (HW2), LKCM Headwater II Sidecar Partnership, L.P. (Sidecar), Headwater Lawson Investors, LLC (HLI), LKCM Headwater Investments III, L.P. (HW3), LKCM TE Investors, LLC (TE Investors), 301 HW Opus Investors, LLC (GS Investors), J. Luther King, Jr. and J. Bryan King (Reporting Persons).

F3 · ownership.nature: 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. (HW2 GP) is the general partner of HW2. LKCM Headwater II Sidecar Partnership GP, L.P. (Sidecar GP) is the general partner of Sidecar. LKCM Headwater Investments III GP, L.P. (HW3 GP) is the general partner of HW3. LKCM Headwater Investments GP, LLC (Ultimate HW GP) is the general partner of each of HW2 GP, Sidecar GP, and HW3 GP. HW2 and Sidecar are beneficial owners of HLI and TE Investors, and HW3 is a beneficial owner of GS Investors.

F4 · ownership.nature: Includes (1) 1,699,871 shares held by PDP, (2) 250,000 shares held by LIP, (3) 26,827 shares held by Micro, (4) 10,490 shares held by Core, (5) 1,761,494 shares held by HLI, (6) 592,326 shares held by HW2, (7) 7,000,000 shares held by GS Investors, (8) 3,300,000 shares held by TE Investors, (9) 2,500 shares held by a separate managed portfolio for which LKCM serves as investment manager, and (10) 17,048 shares held directly by J. Bryan King.

F5 · ownership.nature: 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 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.

SEC source: 0000310051-22-000005 · primary_doc.xml · nonDerivative · entry 1

KING LUTHER CAPITAL MANAGEMENT CORP · CIK 0000310051 · 10% owner

King John Bryan · CIK 0001406297 · Director · 10% owner

LKCM Private Discipline Master Fund, SPC · CIK 0001406372 · 10% owner

LKCM Investment Partnership, L.P. · CIK 0001406371 · 10% owner

King Luther Jr · CIK 0001290407 · 10% owner

LKCM Core Discipline, L.P. · CIK 0001502283 · 10% owner

LKCM Micro-Cap Partnership, L.P. · CIK 0001502285 · 10% owner

LKCM Headwater Investments II, L.P. · CIK 0001621801 · 10% owner

LKCM Headwater II Sidecar Partnership, L.P. · CIK 0001713995 · 10% owner

LKCM Headwater Investments III, L.P. · CIK 0001764096 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 14,650,556

F1 · kind: On April 1, 2022, LKCM TE Investors, LLC (TestEquity Investors), TestEquity Acquisition, LLC, a wholly-owned subsidiary of TestEquity Investors, the Issuer, and Tide Sub, LLC, a wholly-owned subsidiary of the Issuer, consummated the transactions contemplated by the Agreement and Plan of Merger, dated December 29, 2021, by and among the parties thereto (TestEquity Merger Agreement). In connection with the consummation of the transactions contemplated by the TestEquity Merger Agreement, the Issuer issued 3,300,000 shares of Common Stock to TestEquity Investors.

F2 · kind: On April 1, 2022, 301 HW Opus Investors, LLC (Gexpro Investors), 301 HW Opus Holdings, Inc., a wholly-owned subsidiary of Gexpro Investors, the Issuer, and Gulf Sub Inc., a wholly-owned subsidiary of the Issuer, consummated the transactions contemplated by the Agreement and Plan of Merger, dated December 29, 2021, by and among the parties thereto (Gexpro Merger Agreement). In connection with the consummation of the transactions contemplated by the Gexpro Merger Agreement, the Issuer issued 7,000,000 shares of Common Stock to Gexpro Investors.

F1 · shares: On April 1, 2022, LKCM TE Investors, LLC (TestEquity Investors), TestEquity Acquisition, LLC, a wholly-owned subsidiary of TestEquity Investors, the Issuer, and Tide Sub, LLC, a wholly-owned subsidiary of the Issuer, consummated the transactions contemplated by the Agreement and Plan of Merger, dated December 29, 2021, by and among the parties thereto (TestEquity Merger Agreement). In connection with the consummation of the transactions contemplated by the TestEquity Merger Agreement, the Issuer issued 3,300,000 shares of Common Stock to TestEquity Investors.

F2 · shares: On April 1, 2022, 301 HW Opus Investors, LLC (Gexpro Investors), 301 HW Opus Holdings, Inc., a wholly-owned subsidiary of Gexpro Investors, the Issuer, and Gulf Sub Inc., a wholly-owned subsidiary of the Issuer, consummated the transactions contemplated by the Agreement and Plan of Merger, dated December 29, 2021, by and among the parties thereto (Gexpro Merger Agreement). In connection with the consummation of the transactions contemplated by the Gexpro Merger Agreement, the Issuer issued 7,000,000 shares of Common Stock to Gexpro Investors.

F3 · price: Not applicable.

F4 · ownership.nature: This Form 4 is filed by Luther King Capital Management Corporation (LKCM), LKCM Private Discipline Master Fund, SPC (PDP), LKCM Core Discipline, L.P. (Core), LKCM Micro-Cap Partnership, L.P. (Micro), LKCM Investment Partnership, L.P. (LIP), LKCM Headwater Investments II, L.P. (HW2), LKCM Headwater II Sidecar Partnership, L.P. (Sidecar), Headwater Lawson Investors, LLC (HLI), LKCM Headwater Investments III, L.P. (HW3), TestEquity Investors, Gexpro Investors, J. Luther King, Jr., and J. Bryan King (Reporting Persons).

F5 · ownership.nature: 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. (HW2 GP) is the general partner of HW2. LKCM Headwater II Sidecar Partnership GP, L.P. (Sidecar GP) is the general partner of Sidecar. LKCM Headwater Investments III GP, L.P. (HW3 GP) is the general partner of HW3. LKCM Headwater Investments GP, LLC (Ultimate HW GP) is the general partner of each of HW2 GP, Sidecar GP and HW3 GP. HW2 and Sidecar are the beneficial owners of HLI and TestEquity Investors, and HW3 is the beneficial owner of Gexpro Investors.

F6 · ownership.nature: LKCM is the investment manager for PDP, LIP, Micro, Core, HW2, Sidecar, HW3 and HLI. J. Luther King, Jr. is a controlling shareholder or member, as applicable, of LKCM, LIP GP and Ultimate HW GP. J. Bryan King is a member of the Board of Directors of the Issuer and is a controlling shareholder or member, as applicable, of Ultimate HW GP, PDP GP, Micro GP, Core GP, and HLI.

F7 · ownership.nature: Includes (1) 1,699,871 shares held by PDP, (2) 250,000 shares held by LIP, (3) 26,827 shares held by Micro, (4) 10,490 shares held by Core, (5) 1,761,494 shares held by HLI, (6) 592,326 shares held by HLI, (7) 7,000,000 shares held by Gexpro Investors, (8) 3,300,000 shares held by TestEquity Investors, (9) 2,500 shares held by a separately managed portfolio for which LKCM serves as investment manager, and (10) 7,048 shares held directly by J. Bryan King.

F8 · ownership.nature: 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 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.

SEC source: 0000310051-20-000002 · primary_doc.xml · nonDerivative · entry 1

KING LUTHER CAPITAL MANAGEMENT CORP · CIK 0000310051 · 10% owner

King Luther Jr · CIK 0001290407 · 10% owner

King John Bryan · CIK 0001406297 · Director · 10% owner

LKCM Investment Partnership, L.P. · CIK 0001406371 · 10% owner

LKCM Core Discipline, L.P. · CIK 0001502283 · 10% owner

LKCM Micro-Cap Partnership, L.P. · CIK 0001502285 · 10% owner

LKCM Headwater Investments II, L.P. · CIK 0001621801 · 10% owner

LKCM Private Discipline Master Fund, SPC · CIK 0001406372 · 10% owner

Headwater Lawson Investors, LLC · CIK 0001765653 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 4,350,556

F1 · shares: Includes (i) 362 shares purchased by LKCM Core Discipline, L.P. (Core), (ii) 752 shares purchased by LKCM Micro-Cap Partnership, L.P. (Micro), and (iii) 10,513 shares purchased by LKCM Private Discipline Master Fund, SPC (PDP).

F2 · ownership.nature: This Form 4 is filed by Luther King Capital Management Corporation (LKCM), PDP, Core, Micro, LKCM Investment Partnership, L.P. (LIP), LKCM Headwater Investments II, L.P. (HW2), Headwater Lawson Investors, LLC (HLI), 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. (HW2 GP) is the general partner of HW2.

F3 · ownership.nature: LKCM is the investment manager for PDP, LIP, Micro, Core, HW2 and HLI. 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 HW2 GP and managing member of HLI. J. Luther King, Jr. and J. Bryan King are controlling members of PDP GP, Micro GP and Core GP.

F4 · ownership.nature: Includes (i) 1,699,871 shares held by PDP, (ii) 250,000 shares held by LIP, (iii) 10,490 shares held by Core, (iv) 26,827 shares held by Micro, (v) 1,761,494 shares held by HLI, (vi) 592,326 shares held by HW2, (vii) 2,500 shares held by a separately managed portfolio for which LKCM serves as investment manager, and (viii) 7,048 shares held directly by J. Bryan King.

F5 · ownership.nature: 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 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.

SEC source: 0000310051-19-000012 · primary_doc.xml · nonDerivative · entry 1

KING LUTHER CAPITAL MANAGEMENT CORP · CIK 0000310051 · 10% owner

LKCM Private Discipline Master Fund, SPC · CIK 0001406372 · 10% owner

LKCM Investment Partnership, L.P. · CIK 0001406371 · 10% owner

LKCM Core Discipline, L.P. · CIK 0001502283 · 10% owner

LKCM Micro-Cap Partnership, L.P. · CIK 0001502285 · 10% owner

LKCM Headwater Investments II, L.P. · CIK 0001621801 · 10% owner

Headwater Lawson Investors, LLC · CIK 0001765653 · 10% owner

King Luther Jr · CIK 0001290407 · 10% owner

King John Bryan · CIK 0001406297 · Director · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 4,338,956

F1 · shares: Represents shares of common stock purchased by Headwater Lawson Investors, LLC (HLI) pursuant to the terms of a Securities Purchase Agreement, dated April 17, 2019, by and among HLI and the seller party thereto.

F2 · ownership.nature: 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. (HW2), HLI, 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. (HW2 GP) is the general partner of HW2.

F3 · ownership.nature: LKCM is the investment manager for PDP, LIP, Micro, Core, HW2 and HLI. 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 HW2 GP and managing member of HLI. J. Luther King, Jr. and J. Bryan King are controlling members of PDP GP, Micro GP and Core GP.

F4 · ownership.nature: 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 HW2, (vi) 1,761,494 shares held by HLI, (vii) 2,500 shares held by a separately managed portfolio for which LKCM serves as investment manager, and (viii) 7,048 shares held by J. Bryan King.

F5 · ownership.nature: 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.

SEC source: 0000310051-19-000002 · primary_doc.xml · nonDerivative · entry 1

KING LUTHER CAPITAL MANAGEMENT CORP · CIK 0000310051 · 10% owner

LKCM Private Discipline Master Fund, SPC · CIK 0001406372 · 10% owner

LKCM Investment Partnership, L.P. · CIK 0001406371 · 10% owner

LKCM Core Discipline, L.P. · CIK 0001502283 · 10% owner

LKCM Micro-Cap Partnership, L.P. · CIK 0001502285 · 10% owner

LKCM Headwater Investments II, L.P. · CIK 0001621801 · 10% owner

King Luther Jr · CIK 0001290407 · 10% owner

King John Bryan · CIK 0001406297 · Director · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 4,301,249

F1 · shares: Represents shares of Common Stock purchased by Headwater Lawson Investors, LLC (HLI) pursuant to the terms of a Securities Purchase Agreement, dated December 18, 2018, by and among HLI and the sellers party thereto.

F2 · ownership.nature: 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. (HW2), HLI, 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. (HW2 GP) is the general partner of HW2.

F3 · ownership.nature: LKCM is the investment manager for PDP, LIP, Micro, Core, HW2 and HLI. 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 HW2 GP and managing member of HLI. J. Luther King, Jr. and J. Bryan King are controlling members of PDP GP, Micro GP and Core GP.

F4 · ownership.nature: 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 HW2, (vi) 1,723,787 shares held by HLI, (vii) 2,500 shares held by a separately managed portfolio for which LKCM serves as investment manager, and (viii) 7,048 shares held by J. Bryan King.

F5 · ownership.nature: 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.

SEC source: 0000310051-18-000009 · primary_doc.xml · nonDerivative · entry 1

KING LUTHER CAPITAL MANAGEMENT CORP · CIK 0000310051 · 10% owner

LKCM Private Discipline Master Fund, SPC · CIK 0001406372 · 10% owner

LKCM Investment Partnership, L.P. · CIK 0001406371 · 10% owner

LKCM Micro-Cap Partnership, L.P. · CIK 0001502285 · 10% owner

LKCM Core Discipline, L.P. · CIK 0001502283 · 10% owner

King Luther Jr · CIK 0001290407 · 10% owner

King John Bryan · CIK 0001406297 · Director · 10% owner

LKCM Headwater Investments II, L.P. · CIK 0001621801 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 2,577,462

F1 · price: Represents grant of restricted common stock issued to J. Bryan King as a director of the issuer. These shares of restricted common stock will have no voting, dividend or transfer rights until the earlier to occur of (i) the first anniversary of the grant date or (ii) the date immediately preceding the date of the regularly scheduled annual meeting of the issuer's stockholders which occurs in the calendar year following the grant date.

F2 · ownership.nature: 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.

F3 · ownership.nature: 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. J. Luther King, Jr. and J. Bryan King are controlling members of PDP GP, Micro GP and Core GP.

F4 · ownership.nature: 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 (vi) 7,048 shares held by J. Bryan King.

F5 · ownership.nature: 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.

SEC source: 0000310051-18-000005 · primary_doc.xml · nonDerivative · entry 1

KING LUTHER CAPITAL MANAGEMENT CORP · CIK 0000310051 · 10% owner

LKCM Private Discipline Master Fund, SPC · CIK 0001406372 · 10% owner

LKCM Investment Partnership, L.P. · CIK 0001406371 · 10% owner

LKCM Micro-Cap Partnership, L.P. · CIK 0001502285 · 10% owner

LKCM Core Discipline, L.P. · CIK 0001502283 · 10% owner

LKCM Headwater Investments II, L.P. · CIK 0001621801 · 10% owner

King Luther Jr · CIK 0001290407 · 10% owner

King John Bryan · CIK 0001406297 · Director · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 2,574,202

F1 · ownership.nature: 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.

F2 · ownership.nature: 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.

F3 · ownership.nature: 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.

F4 · ownership.nature: 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.

SEC source: 0000310051-18-000004 · primary_doc.xml · nonDerivative · entry 1

KING LUTHER CAPITAL MANAGEMENT CORP · CIK 0000310051 · 10% owner

LKCM Private Discipline Master Fund, SPC · CIK 0001406372 · 10% owner

LKCM Investment Partnership, L.P. · CIK 0001406371 · 10% owner

LKCM Micro-Cap Partnership, L.P. · CIK 0001502285 · 10% owner

LKCM Core Discipline, L.P. · CIK 0001502283 · 10% owner

LKCM Headwater Investments II, L.P. · CIK 0001621801 · 10% owner

King Luther Jr · CIK 0001290407 · 10% owner

King John Bryan · CIK 0001406297 · Director · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 2,454,202

F1 · ownership.nature: 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.

F2 · ownership.nature: 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.

F3 · ownership.nature: 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) 472,326 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.

F4 · ownership.nature: 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.

SEC source: 0000310051-18-000002 · primary_doc.xml · nonDerivative · entry 1

KING LUTHER CAPITAL MANAGEMENT CORP · CIK 0000310051 · 10% owner

LKCM Private Discipline Master Fund, SPC · CIK 0001406372 · 10% owner

LKCM Investment Partnership, L.P. · CIK 0001406371 · 10% owner

LKCM Micro-Cap Partnership, L.P. · CIK 0001502285 · 10% owner

LKCM Core Discipline, L.P. · CIK 0001502283 · 10% owner

LKCM Headwater Investments II, L.P. · CIK 0001621801 · 10% owner

King Luther Jr · CIK 0001290407 · 10% owner

King John Bryan · CIK 0001406297 · Director · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 2,329,202

F1 · ownership.nature: 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 Headwater Investments II GP, L.P. (HW GP) is the general partner of HW.

F2 · ownership.nature: 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.

F3 · ownership.nature: 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) 347,326 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.

F4 · ownership.nature: 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.

SEC source: 0000310051-17-000006 · primary_doc.xml · nonDerivative · entry 7

KING LUTHER CAPITAL MANAGEMENT CORP · CIK 0000310051 · 10% owner

LKCM Private Discipline Master Fund, SPC · CIK 0001406372 · 10% owner

LKCM Investment Partnership, L.P. · CIK 0001406371 · 10% owner

LKCM Micro-Cap Partnership, L.P. · CIK 0001502285 · 10% owner

LKCM Core Discipline, L.P. · CIK 0001502283 · 10% owner

LKCM Headwater Investments II, L.P. · CIK 0001621801 · 10% owner

King Luther Jr · CIK 0001290407 · 10% owner

King John Bryan · CIK 0001406297 · Director · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 2,229,202

F1 · ownership.nature: 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, LLC (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.

F2 · ownership.nature: 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 LCKM 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.

F3 · ownership.nature: 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) 247,326 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.

F4 · ownership.nature: 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.

SEC source: 0000310051-17-000006 · primary_doc.xml · nonDerivative · entry 6

KING LUTHER CAPITAL MANAGEMENT CORP · CIK 0000310051 · 10% owner

LKCM Private Discipline Master Fund, SPC · CIK 0001406372 · 10% owner

LKCM Investment Partnership, L.P. · CIK 0001406371 · 10% owner

LKCM Micro-Cap Partnership, L.P. · CIK 0001502285 · 10% owner

LKCM Core Discipline, L.P. · CIK 0001502283 · 10% owner

LKCM Headwater Investments II, L.P. · CIK 0001621801 · 10% owner

King Luther Jr · CIK 0001290407 · 10% owner

King John Bryan · CIK 0001406297 · Director · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 2,226,697

F1 · ownership.nature: 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, LLC (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.

F2 · ownership.nature: 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 LCKM 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.

F3 · ownership.nature: 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) 247,326 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.

F4 · ownership.nature: 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.

SEC source: 0000310051-17-000006 · primary_doc.xml · nonDerivative · entry 5

KING LUTHER CAPITAL MANAGEMENT CORP · CIK 0000310051 · 10% owner

LKCM Private Discipline Master Fund, SPC · CIK 0001406372 · 10% owner

LKCM Investment Partnership, L.P. · CIK 0001406371 · 10% owner

LKCM Micro-Cap Partnership, L.P. · CIK 0001502285 · 10% owner

LKCM Core Discipline, L.P. · CIK 0001502283 · 10% owner

LKCM Headwater Investments II, L.P. · CIK 0001621801 · 10% owner

King Luther Jr · CIK 0001290407 · 10% owner

King John Bryan · CIK 0001406297 · Director · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 2,223,621

F1 · ownership.nature: 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, LLC (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.

F2 · ownership.nature: 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 LCKM 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.

F3 · ownership.nature: 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) 247,326 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.

F4 · ownership.nature: 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.

SEC source: 0000310051-17-000006 · primary_doc.xml · nonDerivative · entry 4

KING LUTHER CAPITAL MANAGEMENT CORP · CIK 0000310051 · 10% owner

LKCM Private Discipline Master Fund, SPC · CIK 0001406372 · 10% owner

LKCM Investment Partnership, L.P. · CIK 0001406371 · 10% owner

LKCM Micro-Cap Partnership, L.P. · CIK 0001502285 · 10% owner

LKCM Core Discipline, L.P. · CIK 0001502283 · 10% owner

LKCM Headwater Investments II, L.P. · CIK 0001621801 · 10% owner

King Luther Jr · CIK 0001290407 · 10% owner

King John Bryan · CIK 0001406297 · Director · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 2,219,856

F1 · ownership.nature: 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, LLC (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.

F2 · ownership.nature: 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 LCKM 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.

F3 · ownership.nature: 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) 247,326 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.

F4 · ownership.nature: 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.

SEC source: 0000310051-17-000006 · primary_doc.xml · nonDerivative · entry 3

KING LUTHER CAPITAL MANAGEMENT CORP · CIK 0000310051 · 10% owner

LKCM Private Discipline Master Fund, SPC · CIK 0001406372 · 10% owner

LKCM Investment Partnership, L.P. · CIK 0001406371 · 10% owner

LKCM Micro-Cap Partnership, L.P. · CIK 0001502285 · 10% owner

LKCM Core Discipline, L.P. · CIK 0001502283 · 10% owner

LKCM Headwater Investments II, L.P. · CIK 0001621801 · 10% owner

King Luther Jr · CIK 0001290407 · 10% owner

King John Bryan · CIK 0001406297 · Director · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 2,217,746

F1 · ownership.nature: 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, LLC (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.

F2 · ownership.nature: 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 LCKM 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.

F3 · ownership.nature: 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) 247,326 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.

F4 · ownership.nature: 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.

SEC source: 0000310051-17-000006 · primary_doc.xml · nonDerivative · entry 2

KING LUTHER CAPITAL MANAGEMENT CORP · CIK 0000310051 · 10% owner

LKCM Private Discipline Master Fund, SPC · CIK 0001406372 · 10% owner

LKCM Investment Partnership, L.P. · CIK 0001406371 · 10% owner

LKCM Micro-Cap Partnership, L.P. · CIK 0001502285 · 10% owner

LKCM Core Discipline, L.P. · CIK 0001502283 · 10% owner

LKCM Headwater Investments II, L.P. · CIK 0001621801 · 10% owner

King Luther Jr · CIK 0001290407 · 10% owner

King John Bryan · CIK 0001406297 · Director · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 2,217,049

F1 · ownership.nature: 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, LLC (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.

F2 · ownership.nature: 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 LCKM 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.

F3 · ownership.nature: 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) 247,326 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.

F4 · ownership.nature: 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.

SEC source: 0000310051-17-000006 · primary_doc.xml · nonDerivative · entry 1

KING LUTHER CAPITAL MANAGEMENT CORP · CIK 0000310051 · 10% owner

LKCM Private Discipline Master Fund, SPC · CIK 0001406372 · 10% owner

LKCM Investment Partnership, L.P. · CIK 0001406371 · 10% owner

LKCM Micro-Cap Partnership, L.P. · CIK 0001502285 · 10% owner

LKCM Core Discipline, L.P. · CIK 0001502283 · 10% owner

LKCM Headwater Investments II, L.P. · CIK 0001621801 · 10% owner

King Luther Jr · CIK 0001290407 · 10% owner

King John Bryan · CIK 0001406297 · Director · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 2,216,949

F1 · ownership.nature: 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, LLC (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.

F2 · ownership.nature: 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 LCKM 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.

F3 · ownership.nature: 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) 247,326 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.

F4 · ownership.nature: 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.

SEC source: 0000310051-17-000005 · primary_doc.xml · nonDerivative · entry 4

KING LUTHER CAPITAL MANAGEMENT CORP · CIK 0000310051 · 10% owner

LKCM Private Discipline Master Fund, SPC · CIK 0001406372 · 10% owner

LKCM Investment Partnership, L.P. · CIK 0001406371 · 10% owner

LKCM Micro-Cap Partnership, L.P. · CIK 0001502285 · 10% owner

LKCM Headwater Investments II, L.P. · CIK 0001621801 · 10% owner

LKCM Core Discipline, L.P. · CIK 0001502283 · 10% owner

King Luther Jr · CIK 0001290407 · 10% owner

King John Bryan · CIK 0001406297 · Director · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 2,215,549

F1 · ownership.nature: 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.

F2 · ownership.nature: 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.

F3 · ownership.nature: 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) 233,673 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.

F4 · ownership.nature: 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.

SEC source: 0000310051-17-000005 · primary_doc.xml · nonDerivative · entry 3

KING LUTHER CAPITAL MANAGEMENT CORP · CIK 0000310051 · 10% owner

LKCM Private Discipline Master Fund, SPC · CIK 0001406372 · 10% owner

LKCM Investment Partnership, L.P. · CIK 0001406371 · 10% owner

LKCM Micro-Cap Partnership, L.P. · CIK 0001502285 · 10% owner

LKCM Headwater Investments II, L.P. · CIK 0001621801 · 10% owner

LKCM Core Discipline, L.P. · CIK 0001502283 · 10% owner

King Luther Jr · CIK 0001290407 · 10% owner

King John Bryan · CIK 0001406297 · Director · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 2,215,349

F1 · ownership.nature: 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.

F2 · ownership.nature: 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.

F3 · ownership.nature: 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) 233,673 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.

F4 · ownership.nature: 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.

SEC source: 0000310051-17-000005 · primary_doc.xml · nonDerivative · entry 2

KING LUTHER CAPITAL MANAGEMENT CORP · CIK 0000310051 · 10% owner

LKCM Private Discipline Master Fund, SPC · CIK 0001406372 · 10% owner

LKCM Investment Partnership, L.P. · CIK 0001406371 · 10% owner

LKCM Micro-Cap Partnership, L.P. · CIK 0001502285 · 10% owner

LKCM Headwater Investments II, L.P. · CIK 0001621801 · 10% owner

LKCM Core Discipline, L.P. · CIK 0001502283 · 10% owner

King Luther Jr · CIK 0001290407 · 10% owner

King John Bryan · CIK 0001406297 · Director · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 2,215,245

F1 · ownership.nature: 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.

F2 · ownership.nature: 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.

F3 · ownership.nature: 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) 233,673 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.

F4 · ownership.nature: 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.

SEC source: 0000310051-17-000005 · primary_doc.xml · nonDerivative · entry 1

KING LUTHER CAPITAL MANAGEMENT CORP · CIK 0000310051 · 10% owner

LKCM Private Discipline Master Fund, SPC · CIK 0001406372 · 10% owner

LKCM Investment Partnership, L.P. · CIK 0001406371 · 10% owner

LKCM Micro-Cap Partnership, L.P. · CIK 0001502285 · 10% owner

LKCM Headwater Investments II, L.P. · CIK 0001621801 · 10% owner

LKCM Core Discipline, L.P. · CIK 0001502283 · 10% owner

King Luther Jr · CIK 0001290407 · 10% owner

King John Bryan · CIK 0001406297 · Director · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See foonotes

Disclosed balance after: 2,214,845

F1 · ownership.nature: 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.

F2 · ownership.nature: 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.

F3 · ownership.nature: 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) 233,673 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.

F4 · ownership.nature: 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.

SEC source: 0000310051-17-000002 · primary_doc.xml · nonDerivative · entry 1

KING LUTHER CAPITAL MANAGEMENT CORP · CIK 0000310051 · 10% owner

LKCM Private Discipline Master Fund, SPC · CIK 0001406372 · 10% owner

LKCM Core Discipline, L.P. · CIK 0001502283 · 10% owner

LKCM Micro-Cap Partnership, L.P. · CIK 0001502285 · 10% owner

LKCM Investment Partnership, L.P. · CIK 0001406371 · 10% owner

LKCM Headwater Investments II, L.P. · CIK 0001621801 · 10% owner

King Luther Jr · CIK 0001290407 · 10% owner

King John Bryan · CIK 0001406297 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 2,210,704

F1 · ownership.nature: This Form 4 is filed on behalf of Luther King Capital Management Corporation (LKCM), LKCM Private Discipline Master Fund, SPC, on behalf of its wholly-owned subsidiary PDLP Lawson, LLC (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. (Headwater), 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. 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. (Headwater GP) is the general partner of Headwater.

F2 · ownership.nature: LKCM is the investment manager for PDP, LIP, Micro, Core, and Headwater. J. Luther King, Jr. is a controlling shareholder of LKCM and LIP GP, J. Luther King, Jr. and J. Bryan King are controlling members of Micro GP and Core GP, and J. Bryan King is a controlling member of Headwater GP.

F3 · ownership.nature: 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) 232,616 shares held by Headwater and (vi) 2,500 shares held by a separately managed portfolio for which LKCM serves as investment adviser.

F4 · ownership.nature: 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 purposes.