Main Street director adds shares via DRIP

Main Street Capital director Vincent D. Foster reported routine share increases through a dividend reinvestment plan.

Rhea-AI Filing Summary

Main Street Capital director Vincent D. Foster reported routine share increases through a dividend reinvestment plan. On February 13, 2026, he acquired 11.838 and 1,263.821 shares of Common Stock at $60.89 per share in transactions coded as “other.” Following these transactions, he directly holds 1,737,223.2584 shares. He also has indirect holdings of 35,307.4742 shares through MS Trust I, 34,557 shares through each of MS Trust II and MS Trust III, and 33,300 shares through MS Trust V. The company notes these shares were acquired under a dividend reinvestment plan in a transaction exempt from Section 16 under Rule 16a-11.

Insider Trade Summary

Other: 1,275.659 shares

Other 6 txns

Insider FOSTER VINCENT D

Role Director

Type	Security	Shares	Price	Value
Other	Common Stock	11.838	$60.89	$720.82
Other	Common Stock	1,263.821	$60.89	$77K
holding	Common Stock	--	--	--
holding	Common Stock	--	--	--
holding	Common Stock	--	--	--
holding	Common Stock	--	--	--

Holdings After Transaction: Common Stock — 1,737,223.2584 shares (Direct); Common Stock — 35,307.4742 shares (Indirect, MS Trust I); Common Stock — 34,557 shares (Indirect, MS Trust II); Common Stock — 34,557 shares (Indirect, MS Trust III); Common Stock — 33,300 shares (Indirect, MS Trust V)

Footnotes (2)

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.
2. F2. Family trust

FAQ

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

What did Main Street Capital (MAIN) director Vincent D. Foster report in this Form 4?

Director Vincent D. Foster reported acquiring additional Main Street Capital Common Stock through a dividend reinvestment plan. The filing shows two “other” transactions on February 13, 2026 at $60.89 per share, reflecting routine reinvestment of cash dividends into new shares.

How many Main Street Capital (MAIN) shares did Vincent D. Foster acquire?

He acquired 11.838 and 1,263.821 shares of Main Street Capital Common Stock at $60.89 per share through dividend reinvestment. These are coded as “other acquisition or disposition” but footnotes clarify they are purchases under a dividend reinvestment plan exempt from Section 16.

What are Vincent D. Foster’s Main Street Capital (MAIN) direct holdings after the transactions?

After the dividend reinvestment transactions, Vincent D. Foster directly holds 1,737,223.2584 shares of Main Street Capital Common Stock. This figure represents his direct ownership position as of the Form 4 date, separate from additional shares held indirectly through several MS family trusts.

What indirect Main Street Capital (MAIN) holdings does Vincent D. Foster report?

He reports indirect ownership via several MS trusts: 35,307.4742 shares in MS Trust I, 34,557 shares in MS Trust II, 34,557 shares in MS Trust III, and 33,300 shares in MS Trust V. These trusts hold Main Street Capital Common Stock for estate or family planning purposes.

How are these Main Street Capital (MAIN) transactions classified under SEC rules?

The transactions use code J, described as “other acquisition or disposition.” A footnote explains the shares were acquired under a dividend reinvestment plan, making them dividend reinvestment transactions exempt from Section 16 under Rule 16a-11 rather than open-market purchases or sales.

Does this Main Street Capital (MAIN) Form 4 indicate open-market buying or selling?

No. The Form 4 does not show open-market buys or sells. Instead, it records shares acquired automatically through a dividend reinvestment plan, coded as “other” and specifically described as exempt dividend reinvestment transactions under SEC Rule 16a-11 rather than discretionary market trades.

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

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Accepted by SEC EDGAR 03/11/2026 - 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^*

FOSTER VINCENT D

(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)
02/13/2026

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	02/13/2026		J(1)	V	11.838	A	$60.89	1,735,959.4374	D
Common Stock	02/13/2026		J(1)	V	1,263.821	A	$60.89	1,737,223.2584	D
Common Stock								35,307.4742	I	MS Trust I(2)
Common Stock								34,557	I	MS Trust II(2)
Common Stock								34,557	I	MS Trust III(2)
Common Stock								33,300	I	MS Trust V(2)

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.

2. Family trust

	/s/ Jason B. Beauvais, Attorney-in-Fact	03/11/2026
	** 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.
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.