Main Street insider buys 236.391 shares in DRIP

A Main Street Capital CORP director acquired additional common shares via a dividend reinvestment plan exempt under Rule 16a-11.

Rhea-AI Filing Summary

Main Street Capital CORP (MAIN) director Brian E. Lane reported acquiring a total of 236.391 shares of common stock on August 14, 2026 through a dividend reinvestment plan. The transactions, recorded at $59.23 and $58.80 per share, are described as dividend reinvestment transactions exempt from Section 16 under Rule 16a-11, and no Rule 10b5-1 trading plan is reported.

Insider Trade Summary

Other: 236.391 shares

Other 2 txns

Insider Lane Brian E.

Role Director

Type	Security	Shares	Price	Value
Other	Common Stock F1	64.408	$59.23	$4K
Other	Common Stock F1	171.983	$58.80	$10K

Holdings After Transaction: Common Stock — 53,322.0098 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 (first transaction): 64.408 shares Price per share (first transaction): $59.23 per share Shares acquired (second transaction): 171.983 shares +2 more

5 metrics

Shares acquired (first transaction) 64.408 shares Common stock acquired on August 14, 2026 under dividend reinvestment plan

Price per share (first transaction) $59.23 per share Dividend reinvestment acquisition of Main Street Capital CORP common stock

Shares acquired (second transaction) 171.983 shares Common stock acquired on August 14, 2026 under dividend reinvestment plan

Price per share (second transaction) $58.80 per share Dividend reinvestment acquisition of Main Street Capital CORP common stock

Total shares acquired 236.391 shares Sum of the two dividend reinvestment transactions on August 14, 2026

Key Terms

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

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.

dividend reinvestment transaction financial

"pursuant to a dividend reinvestment transaction exempt from Section 16"

A dividend reinvestment transaction is when an investor uses cash dividends paid by a company to automatically buy more of that company's shares instead of taking the money as cash. Like choosing to roll interest back into a savings account, it increases your share count over time and can speed up growth through compounding, so investors care because it changes ownership stake, long‑term returns, and sometimes tax or record‑keeping implications.

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

"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 report for Brian E. Lane on August 14, 2026?

Brian E. Lane reported acquiring 236.391 shares of Main Street Capital CORP common stock on August 14, 2026, in two transactions recorded at $59.23 and $58.80 per share, both through a dividend reinvestment plan.

How many MAIN shares were acquired in each Form 4 transaction?

The Form 4 shows two acquisitions: 64.408 shares at $59.23 per share and 171.983 shares at $58.80 per share, all in Main Street Capital CORP common stock under a dividend reinvestment plan.

Was a Rule 10b5-1 trading plan used for the August 14, 2026 MAIN transactions?

No. The filing indicates no Rule 10b5-1 trading plan for these transactions; they were instead executed under a dividend reinvestment plan and identified as dividend reinvestment transactions exempt under Rule 16a-11.

What exemption applies to Brian E. Lane’s MAIN dividend reinvestment transactions?

The footnote states that the shares were acquired under a dividend reinvestment plan in a dividend reinvestment transaction exempt from Section 16 under Rule 16a-11.

Are the August 14, 2026 MAIN insider acquisitions direct or indirect holdings?

The Form 4 reports the acquired Main Street Capital CORP shares as direct holdings, with the ownership type shown as direct for both transactions.

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

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Available on EDGAR 09/15/2026 - 04:31 PM Accepted by SEC EDGAR 09/15/2026 - 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^*

Lane Brian E.

(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
	Officer (give title below)		Other (specify below)

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	64.408	A	$59.23	53,150.0268	D
Common Stock	08/14/2026		J(1)	V	171.983	A	$58.8	53,322.0098	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)