STOCK TITAN

Main Street Capital CORP (MAIN) director acquires 4,867+ shares via dividend reinvestment

(Moderate)
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Main Street Capital CORP director Vincent D. Foster reported multiple acquisitions of Common Stock totaling 4867.136300000001 shares through a dividend reinvestment plan on 2026-06-15, 2026-06-29 and 2026-07-15. Shares were acquired at prices of $52.0200, $51.0100 and $53.0900, both directly and through family trusts, and an indirect holding of 33300.0000 shares in MS Trust V is reported.

Positive

  • None.

Negative

  • None.
Insider FOSTER VINCENT D
Role Director
Type Security Shares Price Value
Other Common Stock F1 14.3347 $53.09 $761.03
Other Common Stock F1 1,172.0816 $53.09 $62K
Other Common Stock F1, F2 89.566 $53.09 $5K
Other Common Stock F1, F2 173.5056 $53.09 $9K
Other Common Stock F1, F2 89.566 $53.09 $5K
Other Common Stock F1 16.7908 $51.01 $856.50
Other Common Stock F1 1,372.92 $51.01 $70K
Other Common Stock F1, F2 104.913 $51.01 $5K
Other Common Stock F1, F2 203.2366 $51.01 $10K
Other Common Stock F1, F2 104.913 $51.01 $5K
Other Common Stock F1 14.1986 $52.02 $738.61
Other Common Stock F1 1,160.96 $52.02 $60K
Other Common Stock F1, F2 88.7159 $52.02 $5K
Other Common Stock F1, F2 172.7186 $52.02 $9K
Other Common Stock F1, F2 88.7159 $52.02 $5K
holding Common Stock F2 -- -- --
Holdings After Transaction: Common Stock — 1,676,608.5132 shares (Direct); Common Stock — 71,090.6691 shares (Indirect, MS Trust I); Common Stock — 35,106.4617 shares (Indirect, MS Trust II); Common Stock — 70,340.1949 shares (Indirect, MS Trust III); Common Stock — 33,300 shares (Indirect, MS Trust V)
Footnotes (2)
  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.
  2. F2. Family trust
Total shares acquired (restructuring) 4867.136300000001 shares Aggregate restructuring-type acquisitions coded J under dividend reinvestment transactions
Price per share on 2026-07-15 $53.0900 Dividend reinvestment acquisitions of Common Stock on 2026-07-15
Price per share on 2026-06-29 $51.0100 Dividend reinvestment acquisitions of Common Stock on 2026-06-29
Price per share on 2026-06-15 $52.0200 Dividend reinvestment acquisitions of Common Stock on 2026-06-15
Indirect holding in MS Trust V 33300.0000 shares Indirectly held Main Street Capital CORP Common Stock through MS Trust V
Number of acquisition transactions 15 Non-derivative acquisitions coded J with acquired_disposed_code A
dividend reinvestment plan financial
"acquired these shares under a dividend reinvestment plan, pursuant to a dividend"
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
"transaction exempt from Section 16 under Rule 16a-11"
indirect ownership financial
"Indirect ownership noted for MS Trust I, II, III and V as family trust"
transaction code J financial
"All acquisition entries use transaction code J, described as other acquisition"

FAQ

What did insider Vincent D. Foster report in this Form 4 for MAIN?

Vincent D. Foster reported acquiring 4867.136300000001 shares of Main Street Capital CORP common stock. The acquisitions occurred via a dividend reinvestment plan on three June–July 2026 dates, including direct holdings and family trusts.

At what prices were the MAIN shares acquired in the reported transactions?

The reported acquisitions occurred at per-share prices of $52.0200, $51.0100 and $53.0900. These prices applied to dividend reinvestment purchases on 2026-06-15, 2026-06-29 and 2026-07-15, respectively, under Main Street Capital CORP’s plan.

How many MAIN shares were involved in restructuring-type acquisitions in this filing?

The filing shows restructuring-type acquisitions totaling 4867.136300000001 shares of Main Street Capital CORP common stock. All are coded as J transactions and described as acquisitions under a dividend reinvestment plan exempt from Section 16 under Rule 16a-11.

What indirect MAIN shareholdings through trusts does Vincent D. Foster report?

Foster reports indirect ownership in several family trusts, including MS Trust I, II, III and V. One holding-line entry shows 33300.0000 shares of Main Street Capital CORP common stock held indirectly through MS Trust V, noted as a family trust.

Were the MAIN transactions made under a Rule 10b5-1 trading plan?

The Form 4 indicates the Rule 10b5-1 checkbox is not affirmed for these transactions. Footnotes state the acquisitions occurred under a dividend reinvestment plan and are exempt from Section 16 under Rule 16a-11, but do not describe a 10b5-1 plan.

What type of transaction code is used for the MAIN insider acquisitions?

All acquisition entries use transaction code J, described as “Other acquisition or disposition.” Footnotes clarify these are dividend reinvestment transactions in Main Street Capital CORP stock, treated as exempt from Section 16 under Rule 16a-11.

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SEC Form 4
FORM 4UNITED 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*
FOSTER VINCENT D

(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)
XDirector10% Owner
Officer (give title below)Other (specify below)
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
06/15/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm 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)
CodeVAmount(A) or (D)Price
Common Stock06/15/2026J(1)V14.1986A$52.021,672,871.4262D
Common Stock06/15/2026J(1)V1,160.96A$52.021,674,032.3862D
Common Stock06/29/2026J(1)V16.7908A$51.011,674,049.177D
Common Stock06/29/2026J(1)V1,372.92A$51.011,675,422.097D
Common Stock07/15/2026J(1)V14.3347A$53.091,675,436.4317D
Common Stock07/15/2026J(1)V1,172.0816A$53.091,676,608.5132D
Common Stock06/15/2026J(1)V88.7159A$52.0270,896.1901IMS Trust I(2)
Common Stock06/29/2026J(1)V104.913A$51.0171,001.1031IMS Trust I(2)
Common Stock07/15/2026J(1)V89.566A$53.0971,090.6691IMS Trust I(2)
Common Stock06/15/2026J(1)V172.7186A$52.0234,729.7186IMS Trust II(2)
Common Stock06/29/2026J(1)V203.2366A$51.0134,932.9552IMS Trust II(2)
Common Stock07/15/2026J(1)V173.5056A$53.0935,106.4617IMS Trust II(2)
Common Stock06/15/2026J(1)V88.7159A$52.0270,145.7159IMS Trust III(2)
Common Stock06/29/2026J(1)V104.913A$51.0170,250.6289IMS Trust III(2)
Common Stock07/15/2026J(1)V89.566A$53.0970,340.1949IMS Trust III(2)
Common Stock33,300IMS Trust V(2)
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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount 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.
2. Family trust
/s/ Jason B. Beauvais, Attorney-in-Fact08/14/2026
** Signature of Reporting PersonDate
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)