Main Street Capital CEO adds shares via DRIP

Main Street Capital CORP CEO and director Dwayne L. Hyzak reported three non-open-market acquisitions of common stock under a dividend reinvestment plan.

Rhea-AI Filing Summary

Main Street Capital CORP CEO and director Dwayne L. Hyzak reported three non-open-market acquisitions of common stock under a dividend reinvestment plan. On June 15, June 29, and July 15, 2026, he acquired 447.069, 528.692, and 451.353 shares, respectively, through dividend reinvestment transactions exempt from Section 16 under Rule 16a-11.

Insider Trade Summary

Other: 1,427.114 shares

Other 3 txns

Insider Hyzak Dwayne L.

Role CEO, SMD

Type	Security	Shares	Price	Value
Other	Common Stock F1	451.353	$53.09	$24K
Other	Common Stock F1	528.692	$51.01	$27K
Other	Common Stock F1	447.069	$52.02	$23K

Holdings After Transaction: Common Stock — 508,274.7856 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 2026-07-15: 451.353 shares at $53.0900 Shares acquired 2026-06-29: 528.692 shares at $51.0100 Shares acquired 2026-06-15: 447.069 shares at $52.0200

3 metrics

Shares acquired 2026-07-15 451.353 shares at $53.0900 Common stock acquired under dividend reinvestment plan on July 15, 2026

Shares acquired 2026-06-29 528.692 shares at $51.0100 Common stock acquired under dividend reinvestment plan on June 29, 2026

Shares acquired 2026-06-15 447.069 shares at $52.0200 Common stock acquired under dividend reinvestment plan on June 15, 2026

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 transactions did MAIN CEO Dwayne L. Hyzak report on this Form 4?

Dwayne L. Hyzak reported three acquisitions of common stock in 2026, totaling multiple small lots, all under a dividend reinvestment plan. These were coded as J (other acquisition or disposition) transactions.

On what dates did Dwayne L. Hyzak acquire MAIN shares via dividend reinvestment?

Dwayne L. Hyzak acquired MAIN shares on June 15, 2026, June 29, 2026, and July 15, 2026. Each transaction involved common stock credited through the company’s dividend reinvestment plan.

How many MAIN shares did Hyzak acquire in each reported dividend reinvestment transaction?

Hyzak acquired 447.069 shares on June 15, 528.692 shares on June 29, and 451.353 shares on July 15, 2026. All were common stock transactions under a dividend reinvestment plan.

What prices were used for Dwayne L. Hyzak’s MAIN dividend reinvestment acquisitions?

The reported per-share prices were $52.02 on June 15, $51.01 on June 29, and $53.09 on July 15, 2026. These prices apply to common stock acquired via the dividend reinvestment plan.

Were Dwayne L. Hyzak’s MAIN transactions made under a Rule 10b5-1 trading plan?

The filing’s Rule 10b5-1 checkbox is marked false, indicating these transactions were not affirmed as made under a Rule 10b5-1 trading plan. Instead, they occurred through a standing dividend reinvestment plan.

How are Hyzak’s MAIN dividend reinvestment transactions treated under Section 16 rules?

The footnote states the acquisitions occurred under a dividend reinvestment plan and are exempt from Section 16 reporting rules under Rule 16a-11. They are still reported but receive this specific regulatory exemption.

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 08/14/2026 - 04:30 PM EDT 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^*

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)
06/15/2026

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	447.069	A	$52.02	507,294.7406	D
Common Stock	06/29/2026		J(1)	V	528.692	A	$51.01	507,823.4326	D
Common Stock	07/15/2026		J(1)	V	451.353	A	$53.09	508,274.7856	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)