Main Street Capital director adds shares via DRIP

Main Street Capital Corp. director Lane Brian E. reported multiple small acquisitions of common stock through a dividend reinvestment plan.

Rhea-AI Filing Summary

Main Street Capital Corp. director Lane Brian E. reported multiple small acquisitions of common stock through a dividend reinvestment plan. On December 15, 2025, he acquired 53.837 shares at $62.05 per share and 146.314 shares at $60.77 per share. On December 29, 2025, he acquired 64.938 shares at $60.77 per share and 175.807 shares at $59.75 per share.

All transactions are coded "J" and described as dividend reinvestment transactions that are exempt from Section 16 under Rule 16a-11. Following these transactions, Lane Brian E. directly owned a total of 48,965.7998 shares of Main Street Capital common stock.

Insider Trade Summary

Other: 440.896 shares

Other 4 txns

Insider Lane Brian E.

Role Director

Type	Security	Shares	Price	Value
Other	Common Stock	64.938	$60.77	$4K
Other	Common Stock	175.807	$59.75	$11K
Other	Common Stock	53.837	$62.05	$3K
Other	Common Stock	146.314	$60.77	$9K

Holdings After Transaction: Common Stock — 48,965.7998 shares (Direct)

Footnotes (1)

1. F1. 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.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider activity did Main Street Capital (MAIN) report in this Form 4?

The Form 4 shows that director Lane Brian E. acquired small amounts of Main Street Capital common stock on several dates in December 2025 through a dividend reinvestment plan, increasing his directly held shares.

How many Main Street Capital shares does Lane Brian E. own after these transactions?

After the reported dividend reinvestment transactions, Lane Brian E. directly beneficially owned 48,965.7998 shares of Main Street Capital common stock.

On what dates did the Main Street Capital director acquire shares through dividend reinvestment?

Lane Brian E. acquired Main Street Capital common stock under the dividend reinvestment plan on December 15, 2025 and December 29, 2025, in four separate transactions.

What were the reported prices for the Main Street Capital dividend reinvestment shares?

The reported acquisition prices were $62.05, $60.77, and $59.75 per share for the various December 2025 dividend reinvestment transactions in Main Street Capital common stock.

How are these Main Street Capital Form 4 transactions classified under SEC rules?

The transactions are coded "J" and the footnote explains that 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.

What is Lane Brian E.’s relationship to Main Street Capital?

Lane Brian E. is identified as a director of Main Street Capital Corp. and is not listed as an officer or 10% owner in this Form 4.

AI-generated analysis. How Rhea-AI works. Not financial advice.

Form 4 Insider Transactions: What Each Field Means →

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Accepted by SEC EDGAR 01/13/2026 - 04:30 PM Learn about SEC filing dates

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
Estimated average burden
hours per response:			0.5

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^*

Lane Brian E.

(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)
12/15/2025

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	12/15/2025		J(1)	V	53.837	A	$62.05	48,578.7408	D
Common Stock	12/15/2025		J(1)	V	146.314	A	$60.77	48,725.0548	D
Common Stock	12/29/2025		J(1)	V	64.938	A	$60.77	48,789.9928	D
Common Stock	12/29/2025		J(1)	V	175.807	A	$59.75	48,965.7998	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	01/13/2026
	** 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.
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