Main Street Capital (MAIN) officer boosts holdings through dividend reinvestment plan

Rhea-AI Filing Summary

Main Street Capital Corp reported that its President, CIO and SMD, as an officer of the company, acquired additional shares of common stock through a dividend reinvestment plan. On 11/14/2025, the officer acquired 56.4475 shares at $58.5833 per share and 52.615 shares at $58.9 per share in dividend reinvestment transactions. After these transactions, the officer beneficially owned 404,520.4377 shares of Main Street Capital common stock directly. The filing notes these acquisitions were made under a dividend reinvestment plan in a transaction exempt from Section 16 under Rule 16a-11.

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

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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^*

Magdol David L.

(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)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	PRESIDENT, CIO AND SMD

3. Date of Earliest Transaction (Month/Day/Year)
11/14/2025

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	11/14/2025		J(1)	V	56.4475	A	$58.5833	404,467.8227	D
Common Stock	11/14/2025		J(1)	V	52.615	A	$58.9	404,520.4377	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	12/05/2025
	** 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 insider transaction did Main Street Capital (MAIN) report in this Form 4?

The filing reports that an officer of Main Street Capital Corp acquired additional common stock through a dividend reinvestment plan on 11/14/2025.

How many Main Street Capital (MAIN) shares were acquired and at what prices?

On 11/14/2025, the officer acquired 56.4475 shares at $58.5833 per share and 52.615 shares at $58.9 per share under the dividend reinvestment plan.

What is the officers total beneficial ownership after these Main Street Capital transactions?

Following the reported dividend reinvestment transactions, the officer beneficially owned 404,520.4377 shares of Main Street Capital common stock directly.

Who is the reporting person in this Main Street Capital (MAIN) Form 4 and what is their role?

The reporting person is an officer of Main Street Capital Corp, serving as President, CIO and SMD, and files individually as one reporting person.

How were the Main Street Capital (MAIN) shares acquired in this filing treated under SEC rules?

The filing explains that the shares were acquired under a dividend reinvestment plan in a dividend reinvestment transaction that is exempt from Section 16 under Rule 16a-11.

Does this Main Street Capital Form 4 involve any derivative securities?

The filing includes a table for derivative securities, but no derivative transactions are reported; all reported acquisitions involve common stock only.