Main Street CEO acquires 406.584 shares via DRIP

Main Street Capital CORP (MAIN) reported that director and CEO Dwayne L. Hyzak acquired 406.584 shares of common stock on August 14, 2026 through a dividend reinvestment transaction.

Available on EDGAR 09/15/2026 - 04:31 PM EDT Accepted by SEC EDGAR 09/15/2026 - 04:30 PM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

Main Street Capital CORP (MAIN) reported that director and CEO Dwayne L. Hyzak acquired 406.584 shares of common stock on August 14, 2026 through a dividend reinvestment transaction. The shares were credited at $59.23 per share, bringing his directly held position to 508,681.3696 shares of common stock.

Insider Trade Summary

Other: 406.584 shares

Other 1 txn

Insider Hyzak Dwayne L.

Role CEO, SMD

Type	Security	Shares	Price	Value
Other	Common Stock F1	406.584	$59.23	$24K

Holdings After Transaction: Common Stock — 508,681.3696 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

Shares acquired: 406.584 shares Price per share: $59.23 per share Total direct holdings after transaction: 508,681.3696 shares +1 more

4 metrics

Shares acquired 406.584 shares Common stock acquired on August 14, 2026 via dividend reinvestment

Price per share $59.23 per share Crediting price for the dividend reinvestment acquisition

Total direct holdings after transaction 508,681.3696 shares Directly held Main Street Capital CORP common stock following the transaction

Transaction date August 14, 2026 Date of dividend reinvestment acquisition

Key Terms

dividend reinvestment plan, Section 16, Rule 16a-11

3 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.

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.

Rule 16a-11 regulatory

"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 transaction did MAIN report for Dwayne L. Hyzak?

MAIN reported that CEO and director Dwayne L. Hyzak acquired 406.584 shares of common stock on August 14, 2026 through a dividend reinvestment transaction at $59.23 per share.

How many MAIN shares does Dwayne L. Hyzak hold after this transaction?

After the August 14, 2026 dividend reinvestment transaction, Dwayne L. Hyzak directly holds 508,681.3696 shares of Main Street Capital CORP common stock.

What was the price per share for the MAIN dividend reinvestment acquisition?

The 406.584 Main Street Capital CORP common shares were acquired at $59.23 per share in the August 14, 2026 dividend reinvestment transaction.

Was the MAIN insider transaction a purchase or sale?

The reported MAIN insider transaction was an acquisition of 406.584 common shares by Dwayne L. Hyzak through a dividend reinvestment transaction, not a sale.

Was the MAIN insider transaction made under a Rule 10b5-1 trading plan?

The filing indicates that no Rule 10b5-1 trading plan is affirmed for this transaction; it describes an acquisition under a dividend reinvestment plan instead.

How is the MAIN dividend reinvestment transaction described legally?

The filing states that the CEO acquired these shares under a dividend reinvestment plan in a dividend reinvestment transaction that is described as exempt from Section 16 under Rule 16a-11.

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

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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^*

Hyzak Dwayne L.

(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)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
08/14/2026

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	08/14/2026		J(1)	V	406.584	A	$59.23	508,681.3696	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	09/15/2026
	** 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)