[Form 4] Main Street Capital Corporation Insider Trading Activity

Rhea-AI Filing Summary

Main Street Capital Corporation (MAIN) director Dunia A. Shive acquired 71.885 shares of the issuer's common stock on 08/15/2025 through a dividend reinvestment plan. The reported price per share for the transaction is $66.10 and the filing shows 24,107.6811 shares beneficially owned following the transaction in a direct ownership form. The form notes the purchase was exempt under Rule 16a-11 as a dividend reinvestment transaction.

Positive

• Director acquired additional shares (71.885 shares), increasing direct beneficial ownership to 24,107.6811 shares
• Transaction properly disclosed on Form 4 with explanation that it was a dividend reinvestment exempt under Rule 16a-11

Negative

• None.

Insights

Financial Analyst

TL;DR: A director made a small, compliant purchase via dividend reinvestment, modestly increasing direct holdings to 24,107.6811 shares.

The Form 4 records a routine, non-discretionary acquisition of 71.885 shares at $66.10 under a dividend reinvestment plan, reported as exempt under Rule 16a-11. For investors, this is a minor insider accumulation that signals use of automatic dividend reinvestment rather than an active market purchase. The absolute size of the transaction is small relative to total holdings but updates insider ownership totals.

Corporate Governance Expert

TL;DR: Compliance and disclosure appear in order; transaction follows dividend reinvestment procedures and is properly reported on Form 4.

The filing identifies the reporting person as a director and documents the transaction code and explanatory note that the shares were acquired via a dividend reinvestment plan exempt from Section 16. The form is signed by an attorney-in-fact, indicating authorized filing. This is a routine, governance-compliant disclosure with no corrective amendments noted.

SEC Form 4

FORM 4

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
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

SHIVE DUNIA A

(Last) (First) (Middle)

1300 POST OAK BLVD

8TH FLOOR

(Street)

HOUSTON TX 77056

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Main Street Capital CORP [ MAIN ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
08/15/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	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	08/15/2025		J(1)	V	71.885	A	$66.1	24,107.6811	D

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 (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	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 (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (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: 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

Explanation of Responses:

1. The reporting person acquired these shares under a dividend reinvestment plan, pursuant to a dividend reinvestment transaction exempt from Section 16 under Rule 16a-11.

	/s/ Jason B. Beauvais, Attorney-in-Fact	09/02/2025
	** Signature of Reporting Person	Date
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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What did MAIN director Dunia A. Shive report on the Form 4?

The director reported acquiring 71.885 shares of Main Street Capital common stock on 08/15/2025 via a dividend reinvestment plan.

How many shares does the reporting person own after the transaction?

The Form 4 shows the reporting person beneficially owns 24,107.6811 shares following the reported transaction.

At what price were the shares recorded on the Form 4?

The transaction is reported at a price of $66.10 per share.

Why was this transaction exempt from Section 16 reporting requirements?

The filing states the shares were acquired under a dividend reinvestment plan, a transaction exempt from Section 16 under Rule 16a-11.

Who signed the Form 4 filing?

The Form 4 was signed by Jason B. Beauvais, Attorney-in-Fact on 09/02/2025.