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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
FORM 8-K
CURRENT REPORT
Pursuant to Section 13 or 15(d) of the
Securities Exchange Act of 1934
Date of report (Date of earliest event reported): November 3, 2025
CAPITAL SOUTHWEST CORPORATION
(Exact Name Of Registrant As Specified In Charter)

Texas | 814-00061 | 75-1072796
(State or Other Jurisdiction of Incorporation) | (Commission File Number) | (IRS Employer Identification No.)

8333 Douglas Avenue, Suite 1100
Dallas, Texas 75225
(Address of Principal Executive Offices) (Zip Code)
Registrant’s telephone number, including area code: (214) 238-5700
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

| ☐ | Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) |
| ☐ | Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) |
| ☐ | Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) |
| ☐ | Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) |

Securities registered pursuant to Section 12(b) of the Act:

Title of Each Class | Trading Symbol(s) | Name of Each Exchange on Which Registered
Common Stock, $0.25 par value per share | CSWC | The Nasdaq Global Select Market

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company | ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 2.02 Results of Operations and Financial Condition.
On November 3, 2025, Capital Southwest Corporation (the “Company”) issued a press release, a copy of which has been furnished as Exhibit 99.1 hereto.
The information furnished in this Current Report on Form 8-K under Item 2.02, including Exhibit 99.1, shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), nor shall it be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended (the "Securities Act"), except as shall be expressly set forth by reference in a future filing.
Item 7.01 Regulation FD Disclosure.
The Company expects to hold a conference call with analysts and investors on November 4, 2025. A copy of the investor presentation slides to be used by the Company on such conference call is furnished as Exhibit 99.2 to this Form 8-K and incorporated herein by reference.
The information set forth under this Item 7.01, including Exhibit 99.2, is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Exchange Act, nor shall it be deemed incorporated by reference into any filing under the Securities Act, except as shall be expressly set forth by specific reference in such filing.
Item 9.01 Financial Statements and Exhibits
(d) Exhibits

Exhibit No. |  | Description
99.1 |  | Press release issued by Capital Southwest Corporation on November 3, 2025
99.2 |  | Investor presentation slides
104 |  | Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
Dated: November 3, 2025

| By: | /s/ Michael S. Sarner
|  | Name: Michael S. Sarner
|  | Title: President and Chief Executive Officer