Main Street Capital (MAIN) president boosts stake via dividend reinvestment

Rhea-AI Filing Summary

Main Street Capital president and CIO David L. Magdol increased his direct holdings through a dividend reinvestment plan. On April 15, 2026, he acquired a total of 117.6488 shares of Common Stock via dividend reinvestment transactions. Following these transactions, he directly held about 440,497.1244 shares, indicating a small, routine increase in his existing position rather than an open-market trade.

Insider Trade Summary

2 transactions reported

Mixed 2 txns

Insider Magdol David L.

Role PRESIDENT, CIO AND SMD

Type	Security	Shares	Price	Value
Other	Common Stock	59.782	$57.63	$3K
Other	Common Stock	57.867	$56.39	$3K

Holdings After Transaction: Common Stock — 440,497.124 shares (Direct, null)

Footnotes (1)

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Key Figures

Dividend reinvestment lot 1: 57.8669 shares at $56.39 Dividend reinvestment lot 2: 59.7819 shares at $57.63 Total shares acquired via DRIP: 117.6488 shares +1 more

4 metrics

Dividend reinvestment lot 1 57.8669 shares at $56.39 Common Stock credited on April 15, 2026

Dividend reinvestment lot 2 59.7819 shares at $57.63 Common Stock credited on April 15, 2026

Total shares acquired via DRIP 117.6488 shares Sum of April 15, 2026 dividend reinvestments

Post-transaction holdings 440,497.1244 shares Direct Common Stock holdings after transactions

Key Terms

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

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

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

Section 16 regulatory

"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.

Common Stock financial

"security_title: "Common Stock""

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

Form 4 Insider Transactions: What Each Field Means →

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^*

Magdol David 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)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	PRESIDENT, CIO AND SMD

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
04/15/2026

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	04/15/2026		J(1)	V	59.7819	A	$57.63	440,497.1244	D
Common Stock	04/15/2026		J(1)	V	57.8669	A	$56.39	440,554.9913	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	05/06/2026
	** 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)

FAQ

What did MAIN executive David L. Magdol report in this Form 4?

David L. Magdol reported acquiring additional Main Street Capital (MAIN) Common Stock through a dividend reininvestment plan. These transactions increased his direct holdings slightly, reflecting automatic share accumulation rather than open-market buying or selling activity.

How many MAIN shares did David L. Magdol acquire through dividend reinvestment?

He acquired a total of 117.6488 shares of Main Street Capital Common Stock. The Form 4 shows two dividend reinvestment transactions on the same date, each crediting fractional share amounts that together sum to 117.6488 additional shares.

At what prices were the MAIN dividend reinvestment shares credited?

The dividend reinvestment transactions were credited at prices of $56.39 and $57.63 per share. These prices reflect the share values used for reinvesting paid dividends into additional Main Street Capital Common Stock on the transaction date.

What are David L. Magdol’s MAIN holdings after these transactions?

After the reported dividend reinvestment transactions, David L. Magdol directly held 440,497.1244 Main Street Capital Common shares. This figure shows his updated direct ownership position following the automatic share credits from the company’s dividend reinvestment plan.

Were the MAIN transactions open-market buys or routine reinvestments?

These were routine dividend reinvestment transactions, not open-market purchases. The Form 4 footnote explains that the shares were acquired under a dividend reinvestment plan in a transaction exempt from Section 16 under SEC Rule 16a-11.