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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) October 15, 2026

__________________________________________________________________________

Main Street Capital Corporation

(Exact name of registrant as specified in its charter)

Maryland

814-00746

41-2230745

(State or other jurisdiction

of incorporation)

(Commission File Number)

(IRS Employer Identification No.)


1300 Post Oak Boulevard, 8th Floor, Houston, Texas	77056
(Address of principal executive offices)	(Zip Code)

Registrant’s telephone number, including area code: (713) 350-6000

Not Applicable

___________________________________________________________________________________

(Former name or former address, if changed since last report)

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:


o	Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
o	Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
o	Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
o	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

Name of each exchange on which registered

Common Stock, par value $0.01 per share

MAIN

New York Stock Exchange

NYSE Texas

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 o

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. o

Item 2.02Results of Operations and Financial Condition.

On October 15, 2026, the Registrant issued a press release announcing certain preliminary estimates of its financial

condition and results of operations for its fiscal quarter ended September 30, 2026, as well as other information. A copy of

such press release is attached hereto as Exhibit 99.1 and is incorporated herein by reference.

The information disclosed herein, including Exhibit 99.1 hereto, shall be deemed “filed” for purposes of Section 18 of the

Securities Exchange Act of 1934, as amended, and shall be deemed incorporated by reference into the Registrant’s filings

made under the Securities Act of 1933, as amended; provided, however, that information contained on the Registrant’s

website referred to in the press release attached hereto as Exhibit 99.1 is not incorporated by reference herein or in Exhibit

99.1 and is not a part of this Form 8-K or Exhibit 99.1.

Item 9.01Financial Statements and Exhibits.

(d) Exhibits


99.1	Press release dated October 15, 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.


	Main Street Capital Corporation

Date: October 15, 2026	By:	/s/ Jason B. Beauvais
		Name: Jason B. Beauvais
		Title: General Counsel

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