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Main Street Capital CORP

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2159
SEC CIK
0001396440
Parsed reports
1,875

Last 12 months

Inside the activity.

2 purchase rows · 2 sale rows

Disclosed non-derivative P/S rows, by transaction month. Includes amendments and private transactions.
Monthly counts
MonthPurchasesSales
Nov 202500
Dec 202500
Jan 202600
Feb 202600
Mar 202600
Apr 202600
May 202600
Jun 202601
Jul 202600
Aug 202621
Sep 202600
Oct 202600

Latest available

Insider transactions

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateOwner / reported roleActivity / securityShares / unitsReported priceReported valueDetails
September 15, 2025 Filed Oct 14, 2025 20:35 UTC
Beauvais Jason BEVP, GC, SECRETARY
OtherCommon Stock 88.924 $66.98 $5,956.13
Disclosure

SEC source: 0001437113-25-000004 · form4-10142025_041001.xml · nonDerivative · entry 1

Beauvais Jason B · CIK 0001437113 · EVP, GC, SECRETARY

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 181,304.2859

F1 · kind: 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.

Read SEC document
September 15, 2025 Filed Oct 14, 2025 20:35 UTC
Magdol David L.PRESIDENT, CIO AND SMD
OtherCommon Stock 45.677 $66.98 $3,059.45
Disclosure

SEC source: 0001414108-25-000006 · form4-10142025_041007.xml · nonDerivative · entry 2

Magdol David L. · CIK 0001414108 · PRESIDENT, CIO AND SMD

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 404,245.6573

F1 · kind: 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.

Read SEC document
September 15, 2025 Filed Oct 14, 2025 20:35 UTC
Magdol David L.PRESIDENT, CIO AND SMD
OtherCommon Stock 49.0562 $66.86 $3,279.90
Disclosure

SEC source: 0001414108-25-000006 · form4-10142025_041007.xml · nonDerivative · entry 1

Magdol David L. · CIK 0001414108 · PRESIDENT, CIO AND SMD

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 404,199.9803

F1 · kind: 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.

Read SEC document
September 15, 2025 Filed Oct 14, 2025 20:35 UTC
Hyzak Dwayne L.Director · CEO, SMD
OtherCommon Stock 322.398 $66.98 $21,594.22
Disclosure

SEC source: 0001414109-25-000006 · form4-10142025_041011.xml · nonDerivative · entry 1

Hyzak Dwayne L. · CIK 0001414109 · Director · CEO, SMD

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 449,998.0056

F1 · kind: 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.

Read SEC document
September 15, 2025 Filed Oct 14, 2025 20:35 UTC OtherCommon Stock 7 $66.87 $468.09
Disclosure

SEC source: 0001236849-25-000004 · form4-10142025_041005.xml · nonDerivative · entry 5

JACKSON JOHN EARL · CIK 0001236849 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Wife

Disclosed balance after: 1,958

F1 · kind: 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.

Read SEC document
September 15, 2025 Filed Oct 14, 2025 20:35 UTC OtherCommon Stock 177.458 $65.17 $11,564.94
Disclosure

SEC source: 0001236849-25-000004 · form4-10142025_041005.xml · nonDerivative · entry 2

JACKSON JOHN EARL · CIK 0001236849 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 79,188.8439

F1 · kind: 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.

Read SEC document
September 15, 2025 Filed Oct 14, 2025 20:35 UTC OtherCommon Stock 67.463 $66.98 $4,518.67
Disclosure

SEC source: 0001236849-25-000004 · form4-10142025_041005.xml · nonDerivative · entry 1

JACKSON JOHN EARL · CIK 0001236849 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 79,011.3859

F1 · kind: 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.

Read SEC document
September 15, 2025 Filed Oct 14, 2025 20:30 UTC OtherCommon Stock 182.122 $65.17 $11,868.89
Disclosure

SEC source: 0001525628-25-000004 · form4-10142025_041001.xml · nonDerivative · entry 2

Griffin Jon Kevin · CIK 0001525628 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 69,224.544

F1 · kind: 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.

Read SEC document
September 15, 2025 Filed Oct 14, 2025 20:30 UTC OtherCommon Stock 15.87 $66.98 $1,062.97
Disclosure

SEC source: 0001525628-25-000004 · form4-10142025_041001.xml · nonDerivative · entry 1

Griffin Jon Kevin · CIK 0001525628 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 69,042.422

F1 · kind: 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.

Read SEC document
September 02, 2025 Filed Sep 2, 2025 20:44 UTC
Beauvais Jason BEVP, GC, SECRETARY
GiftCommon Stock 115 $0.00 $0.00
Disclosure

SEC source: 0001437113-25-000003 · form4-09022025_080937.xml · nonDerivative · entry 2

Beauvais Jason B · CIK 0001437113 · EVP, GC, SECRETARY

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 181,215.3619

F2 · kind: The reporting person transferred these shares as a gift pursuant to a transaction exempt from Section 16(b) under Rule 16b-5.

Read SEC document
August 29, 2025 Filed Sep 2, 2025 20:41 UTC
Magdol David L.PRESIDENT, CIO AND SMD
GiftCommon Stock 2,182 $0.00 $0.00
Disclosure

SEC source: 0001414108-25-000003 · form4-09022025_080951.xml · nonDerivative · entry 1

Magdol David L. · CIK 0001414108 · PRESIDENT, CIO AND SMD

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 404,057.0101

F1 · kind: The reporting person transferred these shares as a gift pursuant to a transaction exempt from Section 16(b) under Rule 16b-5.

Read SEC document
August 15, 2025 Filed Sep 2, 2025 20:45 UTC OtherCommon Stock 145.885 $66.10 $9,643.00
Disclosure

SEC source: 0001007549-25-000003 · form4-09022025_080913.xml · nonDerivative · entry 1

SOLCHER STEPHEN B · CIK 0001007549 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 48,843.3127

F1 · kind: 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.

Read SEC document
August 15, 2025 Filed Sep 2, 2025 20:46 UTC OtherCommon Stock 1,464.53 $67.15 $98,343.19
Disclosure

SEC source: 0001069725-25-000003 · form4-09022025_080958.xml · nonDerivative · entry 2

FOSTER VINCENT D · CIK 0001069725 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,727,011.6429

F1 · kind: 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.

Read SEC document
August 15, 2025 Filed Sep 2, 2025 20:46 UTC OtherCommon Stock 10.1745 $67.15 $683.22
Disclosure

SEC source: 0001069725-25-000003 · form4-09022025_080958.xml · nonDerivative · entry 1

FOSTER VINCENT D · CIK 0001069725 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,725,547.1129

F1 · kind: 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.

Read SEC document
August 15, 2025 Filed Sep 2, 2025 20:44 UTC
McHugh RyanVP, CAO & Assistant Treasurer
OtherCommon Stock 20.112 $67.15 $1,350.52
Disclosure

SEC source: 0001667260-25-000003 · form4-09022025_080906.xml · nonDerivative · entry 2

McHugh Ryan · CIK 0001667260 · VP, CAO & Assistant Treasurer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,740.5128

F1 · kind: 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.

Read SEC document
August 15, 2025 Filed Sep 2, 2025 20:44 UTC
McHugh RyanVP, CAO & Assistant Treasurer
OtherCommon Stock 25.041 $67.15 $1,681.50
Disclosure

SEC source: 0001667260-25-000003 · form4-09022025_080906.xml · nonDerivative · entry 1

McHugh Ryan · CIK 0001667260 · VP, CAO & Assistant Treasurer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,720.4008

F1 · kind: 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.

Read SEC document
August 15, 2025 Filed Sep 2, 2025 20:30 UTC OtherCommon Stock 71.885 $66.10 $4,751.60
Disclosure

SEC source: 0001415889-25-023415 · form4-09022025_040915.xml · nonDerivative · entry 1

SHIVE DUNIA A · CIK 0001182313 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,107.6811

F1 · kind: 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.

Read SEC document
August 15, 2025 Filed Sep 2, 2025 20:30 UTC OtherCommon Stock 131.696 $66.10 $8,705.11
Disclosure

SEC source: 0001415889-25-023412 · form4-09022025_040909.xml · nonDerivative · entry 2

Lane Brian E. · CIK 0001448240 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 47,702.6648

F1 · kind: 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.

Read SEC document
August 15, 2025 Filed Sep 2, 2025 20:30 UTC OtherCommon Stock 48.716 $67.15 $3,271.28
Disclosure

SEC source: 0001415889-25-023412 · form4-09022025_040909.xml · nonDerivative · entry 1

Lane Brian E. · CIK 0001448240 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 47,570.9688

F1 · kind: 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.

Read SEC document
August 15, 2025 Filed Sep 2, 2025 20:44 UTC
Beauvais Jason BEVP, GC, SECRETARY
OtherCommon Stock 90.255 $67.15 $6,060.62
Disclosure

SEC source: 0001437113-25-000003 · form4-09022025_080937.xml · nonDerivative · entry 1

Beauvais Jason B · CIK 0001437113 · EVP, GC, SECRETARY

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 181,330.3619

F1 · kind: 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.

Read SEC document
August 15, 2025 Filed Sep 2, 2025 20:41 UTC
Magdol David L.PRESIDENT, CIO AND SMD
OtherCommon Stock 48.525 $67.34 $3,267.67
Disclosure

SEC source: 0001414108-25-000003 · form4-09022025_080951.xml · nonDerivative · entry 3

Magdol David L. · CIK 0001414108 · PRESIDENT, CIO AND SMD

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 404,150.9241

F2 · kind: 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.

Read SEC document
August 15, 2025 Filed Sep 2, 2025 20:41 UTC
Magdol David L.PRESIDENT, CIO AND SMD
OtherCommon Stock 45.389 $67.15 $3,047.87
Disclosure

SEC source: 0001414108-25-000003 · form4-09022025_080951.xml · nonDerivative · entry 2

Magdol David L. · CIK 0001414108 · PRESIDENT, CIO AND SMD

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 404,102.3991

F2 · kind: 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.

Read SEC document
August 15, 2025 Filed Sep 2, 2025 20:43 UTC
Hyzak Dwayne L.Director · CEO, SMD
OtherCommon Stock 320.365 $67.15 $21,512.51
Disclosure

SEC source: 0001414109-25-000003 · form4-09022025_080927.xml · nonDerivative · entry 1

Hyzak Dwayne L. · CIK 0001414109 · Director · CEO, SMD

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 449,675.6076

F1 · kind: 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.

Read SEC document
August 15, 2025 Filed Sep 2, 2025 20:46 UTC OtherCommon Stock 7 $67.27 $470.86
Disclosure

SEC source: 0001236849-25-000003 · form4-09022025_080934.xml · nonDerivative · entry 3

JACKSON JOHN EARL · CIK 0001236849 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Wife

Disclosed balance after: 1,951

Read SEC document
August 15, 2025 Filed Sep 2, 2025 20:46 UTC OtherCommon Stock 174.289 $66.10 $11,520.50
Disclosure

SEC source: 0001236849-25-000003 · form4-09022025_080934.xml · nonDerivative · entry 2

JACKSON JOHN EARL · CIK 0001236849 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 78,943.9229

F1 · kind: 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.

Read SEC document
August 15, 2025 Filed Sep 2, 2025 20:46 UTC OtherCommon Stock 67.037 $67.15 $4,501.53
Disclosure

SEC source: 0001236849-25-000003 · form4-09022025_080934.xml · nonDerivative · entry 1

JACKSON JOHN EARL · CIK 0001236849 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 78,769.6339

F1 · kind: 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.

Read SEC document
August 15, 2025 Filed Sep 2, 2025 20:47 UTC OtherCommon Stock 178.87 $66.10 $11,823.31
Disclosure

SEC source: 0001525628-25-000003 · form4-09022025_080913.xml · nonDerivative · entry 2

Griffin Jon Kevin · CIK 0001525628 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 69,026.48

F1 · kind: 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.

Read SEC document
August 15, 2025 Filed Sep 2, 2025 20:47 UTC OtherCommon Stock 15.769 $67.15 $1,058.89
Disclosure

SEC source: 0001525628-25-000003 · form4-09022025_080913.xml · nonDerivative · entry 1

Griffin Jon Kevin · CIK 0001525628 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 68,847.61

F1 · kind: 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.

Read SEC document
August 14, 2025 Filed Aug 14, 2025 20:48 UTC
Beauvais Jason BEVP, GC, SECRETARY
GiftCommon Stock 500 $0.00 $0.00
Disclosure

SEC source: 0001415889-25-021917 · form4-08142025_080828.xml · nonDerivative · entry 2

Beauvais Jason B · CIK 0001437113 · EVP, GC, SECRETARY

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 181,240.1069

F2 · kind: The reporting person transferred these shares as a gift pursuant to a transaction exempt from Section 16(b) under Rule 16b-5.

Read SEC document
August 14, 2025 Filed Aug 14, 2025 21:02 UTC
Meserve NicholasMANAGING DIRECTOR
SaleCommon Stock 14,000 $67.15 $940,100.00
Disclosure

SEC source: 0001415889-25-021948 · form4-08142025_090806.xml · nonDerivative · entry 2

Meserve Nicholas · CIK 0001563461 · MANAGING DIRECTOR

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 82,382.7027

F2 · kind: The price reported is a weighted average price. These shares were sold in multiple transaction at prices ranging from $67.06 to $67.28, inclusive. The reporting person undertakes to provide to Main Street Capital Corporation, any of its security holders, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

Read SEC document
August 14, 2025 Filed Aug 14, 2025 21:02 UTC
Meserve NicholasMANAGING DIRECTOR
GiftCommon Stock 1,000 $0.00 $0.00
Disclosure

SEC source: 0001415889-25-021948 · form4-08142025_090806.xml · nonDerivative · entry 1

Meserve Nicholas · CIK 0001563461 · MANAGING DIRECTOR

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 96,382.7027

F1 · kind: The reporting person transferred these shares as a gift pursuant to a transaction exempt from Section 16(b) under Rule 16b-5.

Read SEC document
August 14, 2025 Filed Aug 14, 2025 21:01 UTC GiftCommon Stock 1,505.091 $0.00 $0.00
Disclosure

SEC source: 0001415889-25-021945 · form4-08142025_090803.xml · nonDerivative · entry 3

Griffin Jon Kevin · CIK 0001525628 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 68,831.841

F2 · kind: The reporting person transferred these shares as a gift pursuant to a transaction exempt from Section 16(b) under Rule 16b-5.

Read SEC document
July 15, 2025 Filed Aug 14, 2025 20:55 UTC OtherCommon Stock 151.251 $63.50 $9,604.44
Disclosure

SEC source: 0001415889-25-021934 · form4-08142025_080809.xml · nonDerivative · entry 1

SOLCHER STEPHEN B · CIK 0001007549 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 48,697.4277

F1 · kind: 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.

Read SEC document
July 15, 2025 Filed Aug 14, 2025 20:49 UTC OtherCommon Stock 1,540.83 $63.57 $97,950.56
Disclosure

SEC source: 0001415889-25-021918 · form4-08142025_080807.xml · nonDerivative · entry 2

FOSTER VINCENT D · CIK 0001069725 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,725,536.9384

F1 · kind: 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.

Read SEC document
July 15, 2025 Filed Aug 14, 2025 20:49 UTC OtherCommon Stock 10.7046 $63.57 $680.49
Disclosure

SEC source: 0001415889-25-021918 · form4-08142025_080807.xml · nonDerivative · entry 1

FOSTER VINCENT D · CIK 0001069725 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,723,996.1084

F1 · kind: 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.

Read SEC document
July 15, 2025 Filed Aug 14, 2025 20:56 UTC
McHugh RyanVP, CAO & Assistant Treasurer
OtherCommon Stock 21.16 $63.57 $1,345.14
Disclosure

SEC source: 0001415889-25-021936 · form4-08142025_080819.xml · nonDerivative · entry 2

McHugh Ryan · CIK 0001667260 · VP, CAO & Assistant Treasurer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,695.3598

F1 · kind: 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.

Read SEC document
July 15, 2025 Filed Aug 14, 2025 20:56 UTC
McHugh RyanVP, CAO & Assistant Treasurer
OtherCommon Stock 26.3461 $63.57 $1,674.82
Disclosure

SEC source: 0001415889-25-021936 · form4-08142025_080819.xml · nonDerivative · entry 1

McHugh Ryan · CIK 0001667260 · VP, CAO & Assistant Treasurer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,674.1998

F1 · kind: 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.

Read SEC document
July 15, 2025 Filed Aug 14, 2025 20:57 UTC OtherCommon Stock 74.529 $63.50 $4,732.59
Disclosure

SEC source: 0001415889-25-021937 · form4-08142025_080815.xml · nonDerivative · entry 1

SHIVE DUNIA A · CIK 0001182313 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,035.7961

F1 · kind: 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.

Read SEC document
July 15, 2025 Filed Aug 14, 2025 20:51 UTC OtherCommon Stock 136.54 $63.50 $8,670.29
Disclosure

SEC source: 0001415889-25-021925 · form4-08142025_080841.xml · nonDerivative · entry 2

Lane Brian E. · CIK 0001448240 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 47,522.2528

F1 · kind: 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.

Read SEC document
July 15, 2025 Filed Aug 14, 2025 20:51 UTC OtherCommon Stock 51.254 $63.57 $3,258.22
Disclosure

SEC source: 0001415889-25-021925 · form4-08142025_080841.xml · nonDerivative · entry 1

Lane Brian E. · CIK 0001448240 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 47,385.7128

F1 · kind: 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.

Read SEC document
July 15, 2025 Filed Aug 14, 2025 20:48 UTC
Beauvais Jason BEVP, GC, SECRETARY
OtherCommon Stock 94.956 $63.57 $6,036.35
Disclosure

SEC source: 0001415889-25-021917 · form4-08142025_080828.xml · nonDerivative · entry 1

Beauvais Jason B · CIK 0001437113 · EVP, GC, SECRETARY

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 181,740.1069

F1 · kind: 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.

Read SEC document
July 15, 2025 Filed Aug 14, 2025 20:50 UTC
Magdol David L.PRESIDENT, CIO AND SMD
OtherCommon Stock 51.411 $63.57 $3,268.20
Disclosure

SEC source: 0001415889-25-021923 · form4-08142025_080842.xml · nonDerivative · entry 2

Magdol David L. · CIK 0001414108 · PRESIDENT, CIO AND SMD

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 406,239.0101

F1 · kind: 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.

Read SEC document
July 15, 2025 Filed Aug 14, 2025 20:50 UTC
Magdol David L.PRESIDENT, CIO AND SMD
OtherCommon Stock 47.753 $63.57 $3,035.66
Disclosure

SEC source: 0001415889-25-021923 · form4-08142025_080842.xml · nonDerivative · entry 1

Magdol David L. · CIK 0001414108 · PRESIDENT, CIO AND SMD

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 406,187.5991

F1 · kind: 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.

Read SEC document
July 15, 2025 Filed Aug 14, 2025 20:54 UTC
Hyzak Dwayne L.Director · CEO, SMD
OtherCommon Stock 337.055 $63.57 $21,426.59
Disclosure

SEC source: 0001415889-25-021931 · form4-08142025_080810.xml · nonDerivative · entry 1

Hyzak Dwayne L. · CIK 0001414109 · Director · CEO, SMD

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 449,355.2426

F1 · kind: 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.

Read SEC document
July 15, 2025 Filed Aug 14, 2025 20:49 UTC OtherCommon Stock 7 $63.55 $444.85
Disclosure

SEC source: 0001415889-25-021919 · form4-08142025_080851.xml · nonDerivative · entry 3

JACKSON JOHN EARL · CIK 0001236849 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Wife

Disclosed balance after: 1,944

F1 · kind: 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.

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July 15, 2025 Filed Aug 14, 2025 20:49 UTC OtherCommon Stock 180.699 $63.50 $11,474.39
Disclosure

SEC source: 0001415889-25-021919 · form4-08142025_080851.xml · nonDerivative · entry 2

JACKSON JOHN EARL · CIK 0001236849 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 78,702.5969

F1 · kind: 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.

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July 15, 2025 Filed Aug 14, 2025 20:49 UTC OtherCommon Stock 70.529 $63.57 $4,483.53
Disclosure

SEC source: 0001415889-25-021919 · form4-08142025_080851.xml · nonDerivative · entry 1

JACKSON JOHN EARL · CIK 0001236849 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 78,521.8979

F1 · kind: 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.

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July 15, 2025 Filed Aug 14, 2025 21:01 UTC OtherCommon Stock 185.449 $63.50 $11,776.01
Disclosure

SEC source: 0001415889-25-021945 · form4-08142025_090803.xml · nonDerivative · entry 2

Griffin Jon Kevin · CIK 0001525628 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 70,336.932

F1 · kind: 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.

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July 15, 2025 Filed Aug 14, 2025 21:01 UTC OtherCommon Stock 16.591 $63.57 $1,054.69
Disclosure

SEC source: 0001415889-25-021945 · form4-08142025_090803.xml · nonDerivative · entry 1

Griffin Jon Kevin · CIK 0001525628 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 70,151.483

F1 · kind: 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.

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June 27, 2025 Filed Jun 27, 2025 21:08 UTC
Beauvais Jason BEVP, GC, SECRETARY
SaleCommon Stock 3,998 $59.04 $236,041.92
Disclosure

SEC source: 0001415889-25-018401 · form4-06272025_090632.xml · nonDerivative · entry 3

Beauvais Jason B · CIK 0001437113 · EVP, GC, SECRETARY

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 181,526.0359

F3 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $58.6000 to $59.3550, inclusive. The reporting person undertakes to provide to Main Street Capital Corporation, any of its security holders or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

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Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.