Main Street Capital (MAIN) VP reports 2,550-share stock purchase in Form 4

Rhea-AI Filing Summary

Main Street Capital Corp officer Ryan McHugh, VP, CAO & Assistant Treasurer, reported open-market purchases of 2,550 shares of common stock on August 13, 2026, at prices around $59 per share. Earlier, he also acquired small fractional-share amounts through a dividend reinvestment plan in June and July under Rule 16a-11.

Insider Trade Summary

Net Buyer: 2,781.7725 shares

Net Buy 8 txns

Insider McHugh Ryan

Role VP, CAO & Assistant Treasurer

Bought 2,550 shs ($151K)

Type	Security	Shares	Price	Value
Purchase	Common Stock	500	$59.09	$30K
Purchase	Common Stock	2,050	$59.04	$121K
Other	Common Stock F1	40.8382	$53.09	$2K
Other	Common Stock F1	34.434	$53.09	$2K
Other	Common Stock F1	47.8357	$51.01	$2K
Other	Common Stock F1	34.107	$51.01	$2K
Other	Common Stock F1	40.4506	$52.02	$2K
Other	Common Stock F1	34.107	$52.02	$2K

Holdings After Transaction: Common Stock — 22,647.0134 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.

Key Figures

Open-market purchase 1: 500 shares at $59.0900 per share Open-market purchase 2: 2,050 shares at $59.0400 per share Dividend reinvestment acquisitions: 231.7725 shares +1 more

4 metrics

Open-market purchase 1 500 shares at $59.0900 per share Common Stock purchase on 2026-08-13 (code P, direct ownership)

Open-market purchase 2 2,050 shares at $59.0400 per share Common Stock purchase on 2026-08-13 (code P, direct ownership)

Dividend reinvestment acquisitions 231.7725 shares Aggregate restructuringShares from dividend reinvestment plan transactions (code J) under Rule 16a-11

Net buy shares 2,550 shares NetBuySellShares for the reporting period with netBuySellDirection "net-buy"

Key Terms

dividend reinvestment plan, Rule 16a-11, Section 16, open market or private transaction

4 terms

dividend reinvestment plan financial

"The reporting person acquired these shares under a dividend reinvestment plan"

A dividend reinvestment plan lets shareholders automatically use cash dividends to buy more shares of the same company instead of receiving the money. It matters to investors because it turns regular payouts into a steady way to grow ownership and take advantage of compound returns—like having your savings automatically buy additional slices of a pie over time—while often reducing transaction costs and smoothing purchase timing.

Rule 16a-11 regulatory

"dividend reinvestment transaction exempt from Section 16 under Rule 16a-11"

Section 16 regulatory

"dividend reinvestment transaction exempt from Section 16 under Rule 16a-11"

Section 16 is a U.S. securities law rule that governs the trading and disclosure obligations of company insiders — typically officers, directors and large shareholders — to promote transparency and deter unfair profit-taking. It requires insiders to publicly report their stock trades and allows companies or the issuer to reclaim quick, short-term profits from certain insider trades, like a scoreboard and a refund policy that help investors see and limit possible insider advantage.

open market or private transaction financial

"Purchase in open market or private transaction"

FAQ

What insider transactions did MAIN officer Ryan McHugh report on this Form 4?

Ryan McHugh reported purchasing 2,550 shares of Main Street Capital common stock on August 13, 2026 in open-market or private transactions, plus earlier fractional-share acquisitions through a dividend reinvestment plan in June and July.

At what prices did Ryan McHugh buy Main Street Capital (MAIN) shares?

On August 13, 2026, Ryan McHugh purchased 500 shares at $59.09 and 2,050 shares at $59.04 per share. Additional small amounts were acquired earlier at per-share prices around $51.01–$53.09 through a dividend reinvestment plan.

How many Main Street Capital (MAIN) shares did Ryan McHugh acquire via dividend reinvestment?

McHugh acquired an aggregate of 231.7725 shares of Main Street Capital common stock through dividend reinvestment plan transactions, which are reported with code J and are exempt from Section 16 under Rule 16a-11.

Were any Main Street Capital (MAIN) shares sold in this Form 4 filing?

No shares were reported as sold in this Form 4. The transaction summary shows 2,550 shares bought and no shares sold, resulting in a net-buy direction for the period covered.

Does the Main Street Capital (MAIN) Form 4 involve a Rule 10b5-1 trading plan?

The filing’s 10b5-1 checkbox is not affirmatively checked, and there is no footnote stating the trades were under a Rule 10b5-1 plan. The open-market purchases and dividend reinvestments are reported without a trading-plan designation.

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

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 08/14/2026 - 04:34 PM Accepted by SEC EDGAR 08/14/2026 - 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^*

McHugh Ryan

(Last) (First) (Middle)

1300 POST OAK BLVD

8TH FLOOR

(Street)

HOUSTON TEXAS 77056

(City) (State) (Zip)

UNITED STATES

(Country)

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)
	VP, CAO & Assistant Treasurer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
08/13/2026

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

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

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

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	06/15/2026		J(1)	V	40.4506	A	$52.02	19,905.6915	D
Common Stock	06/15/2026		J(1)	V	34.107	A	$52.02	19,939.7985	D
Common Stock	06/29/2026		J(1)	V	47.8357	A	$51.01	19,987.6342	D
Common Stock	06/29/2026		J(1)	V	34.107	A	$51.01	20,021.7412	D
Common Stock	07/15/2026		J(1)	V	40.8382	A	$53.09	20,062.5794	D
Common Stock	07/15/2026		J(1)	V	34.434	A	$53.09	20,097.0134	D
Common Stock	08/13/2026		P		500	A	$59.09	20,597.0134	D
Common Stock	08/13/2026		P		2,050	A	$59.04	22,647.0134	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	08/14/2026
	** 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.
* Form 4: SEC 1474 (03-26)