Form 8-K

8-K — CAPITAL SOUTHWEST CORP

Accession: 0000017313-26-000044

Filed: 2026-05-27

Period: 2026-05-27

CIK: 0000017313

Item: Regulation FD Disclosure

Item: Financial Statements and Exhibits

Documents

8-K — cswc-20260527.htm (Primary)

EX-99.1 (cswc-pressreleasex93026div.htm)

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8-K

8-K (Primary)

Filename: cswc-20260527.htm · Sequence: 1

cswc-20260527

0000017313FALSE00000173132026-05-272026-05-27

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): May 27, 2026

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 7.01 Regulation FD Disclosure.

On May 27, 2026, Capital Southwest Corporation issued a press release announcing its dividend for the quarter ending September 30, 2026. The press release is furnished herewith as Exhibit 99.1.

The information set forth under this Item 7.01, including Exhibit 99.1, is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of such section, nor shall it be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange 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 May 27, 2026

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: May 27, 2026

By: /s/ Michael S. Sarner

Name: Michael S. Sarner

Title: President and Chief Executive Officer

EX-99.1

Filename: cswc-pressreleasex93026div.htm · Sequence: 2

Document

Exhibit 99.1

8333 Douglas Avenue, Suite 1100

Dallas, Texas 75225

T 214.238.5700

F 214.238.5701

Capital Southwest Announces Quarterly Regular Dividend for the Quarter Ending September 30, 2026 and Quarterly Supplemental Dividend Payable on September 30, 2026

Dallas, Texas – May 27, 2026 – Capital Southwest Corporation (“Capital Southwest” or the “Company”) (Nasdaq: CSWC), an internally managed business development company focused on providing flexible financing solutions to support the acquisition and growth of middle market businesses, is pleased to announce that its Board of Directors has declared a quarterly regular dividend of $0.58 per share, of which $0.1934 per share will be paid monthly for each of July, August and September 2026 and a quarterly supplemental dividend of $0.06 per share payable in September 2026, each of which is detailed in the table below.

The Company’s quarterly regular dividend for the quarter ending September 30, 2026 will be payable as follows:

Declared Ex-Dividend Date Record Date Payment Date Amount Per Share

5/27/2026 7/15/2026 7/15/2026 7/31/2026 $0.1934

5/27/2026 8/14/2026 8/14/2026 8/31/2026 $0.1934

5/27/2026 9/15/2026 9/15/2026 9/30/2026 $0.1934

The Company’s quarterly supplemental dividend for the quarter ending September 30, 2026 will be payable as follows:

Declared Ex-Dividend Date Record Date Payment Date Amount Per Share

5/27/2026 9/15/2026 9/15/2026 9/30/2026 $0.06

Total Regular Dividend per Share for Quarter Ending September 30, 2026: $0.58

Total Supplemental Dividend per Share for Quarter Ending September 30, 2026: $0.06

Total Dividends per Share for Quarter Ending September 30, 2026: $0.64

When declaring dividends, the Board of Directors reviews estimates of taxable income available for distribution, which may differ from net investment income under generally accepted accounting principles. The final determination of taxable income for each year, as well as the tax attributes for dividends in such year, will be made after the close of the tax year.

Capital Southwest maintains a dividend reinvestment plan ("DRIP") that provides for the reinvestment of dividends on behalf of its registered stockholders who hold their shares with Capital Southwest’s transfer agent and registrar, Equiniti Trust Company. Under the DRIP, if the Company declares a dividend, registered stockholders who have opted in to the DRIP by the dividend record date will have their dividend automatically reinvested into additional shares of Capital Southwest’s common stock.

About Capital Southwest

Capital Southwest Corporation (Nasdaq: CSWC) is a Dallas, Texas-based, internally managed business development company with approximately $2.1 billion in investments at fair value as of March 31, 2026. Capital Southwest is a middle market lending firm focused on supporting the acquisition and growth of middle market businesses with $5 million to $50 million investments across the capital structure, including first lien, second lien and non-control equity co-investments. As a public company with a permanent capital base, Capital Southwest has the flexibility to be creative in its financing solutions and to invest to support the growth of its portfolio companies over long periods of time.

Forward-Looking Statements

This press release contains historical information and certain forward-looking statements with respect to the business and investments of the Company, including, but not limited to, the timing, form and amount of any distributions or supplemental dividends in the future. Forward-looking statements are statements that are not historical statements and can often be identified by words such as "will," "believe," "expect" and similar expressions and variations or negatives of these words. These statements are based on management's current expectations, assumptions and beliefs. They are not guarantees of future results and are subject to numerous risks, uncertainties and assumptions that could cause actual results to differ materially from those expressed in any forward-looking statement. These risks include risks related to: changes in the markets in which the Company invests; changes in the financial, capital, and lending markets; changes in the interest rate environment and its impact on the Company’s business and its portfolio companies; regulatory changes; tax treatment; the uncertainty associated with the imposition of tariffs and trade barriers and changes in trade policy and its impact on the Company’s portfolio companies and the Company’s financial condition; an economic downturn and its impact on the ability of the Company’s portfolio companies to operate and the investment opportunities available to the Company; the impact of supply chain constraints on the Company’s portfolio companies; and the elevated levels of inflation and its impact on the Company’s portfolio companies and the industries in which it invests.

Readers should not place undue reliance on any forward-looking statements and are encouraged to review Capital Southwest's Annual Report on Form 10-K for the year ended March 31, 2026 and any subsequent filings with the SEC, including the "Risk Factors" sections therein, for a more complete discussion of the risks and other factors that could affect any forward-looking statements. Except as required by the federal securities laws, Capital Southwest does not undertake any obligation to publicly update or revise any forward-looking statements, whether as a result of new information, future events, changing circumstances or any other reason after the date of this press release.

Investor Relations Contact:

Michael S. Sarner, President and Chief Executive Officer

214-884-3829

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May 27, 2026

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