Sec Form 4 Filing - Thomas William R III @ CAPITAL SOUTHWEST CORP - 2021-09-09

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

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, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person Thomas William R III 2. Issuer Name and Ticker or Trading Symbol CAPITAL SOUTHWEST CORP [ CSWC] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director _____ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) C/O CAPITAL SOUTHWEST CORPORATION, 5400 LYNDON B JOHNSON FWY STE 1300 3. Date of Earliest Transaction (MM/DD/YY) 09/09/2021 (Street) DALLAS, TX75240 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 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 09/09/2021 S 4,000 D $ 27.6954 ( 1 ) 0 I Held by the reporting person's daughter Common Stock 09/09/2021 P 2,000 A $ 27.7209 ( 2 ) 6,000 I Held by the reporting person's son Common Stock 09/09/2021 P 2,000 A $ 27.7185 ( 3 ) 6,000 I Held by reporting person's son Common Stock 8,217 D Common Stock 571,939 I See Footnote ( 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 (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 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 (MM/DD/YY) 7. Title and Amount of Underlying Securities (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 of Derivative Security: 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

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Thomas William R III C/O CAPITAL SOUTHWEST CORPORATION 5400 LYNDON B JOHNSON FWY STE 1300 DALLAS, TX75240 X Signatures /s/ William R. Thomas 09/10/2021 Signature of Reporting Person Date

Explanation of Responses:

( 1 )The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $27.59 to $27.78, inclusive. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer, or a security holder of the issuer, full information regarding the number of shares and prices at which the transaction was effected. ( 2 )The price reported in column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $27.59 to $27.86, inclusive. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer, or a security holder of the issuer, full information regarding the number of shares and prices at which the transaction was effected. ( 3 )The price reported in column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $27.59 to $27.77, inclusive. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer, or a security holder of the issuer, full information regarding the number of shares and prices at which the transaction was effected. ( 4 )Mr. Thomas is President and sole manager of Thomas Heritage Company, L.L.C., the sole general partner of Thomas Heritage Partners, Ltd. (the "Partnership"). In such capacity, Mr. Thomas has sole voting and dispositive power with respect to 571,939 shares owned by the Partnership. Although Mr. Thomas's pecuniary interest in the shares of common stock held by the Partnership is limited to his limited partnership interest in the Partnership and his membership interest in the general partner of the Partnership, in accordance with Rule 13d-3(d)(1)(i) of the Securities Exchange Act of 1934, as amended, Mr. Thomas is deemed to be the beneficial owner of all of such shares of common stock.

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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