Main Street Capital CORP (MAIN) - Dilution Analysis

Visualizing historical and potential share dilution over time

Dilution Analysis

Low Risk
Limited dilution potential
Last updated: November 12, 2025

Risk Assessment Details

Potential Dilution: 0.0% of current shares
Recent Dilution: 4.7% (2 years)
Historical Dilution Factor: minimal recent dilution
Outstanding Shares
90M
Potential Supply
0
Additional shares possible
Splits
None
Past 2 years

Summary

MAIN currently has 89.6M outstanding shares. with minimal authorized share overhang for future dilution. The company has minimally diluted shareholders by 4.7% over the past 2 years.

Share Structure Timeline

Outstanding Shares
Total Supply

Historical Data Points

Date Event Outstanding Supply
Nov 12, 2025

8-K filing: Main Street Capital Corporation entered into an equity distribution agreement with Huntington Securities, Inc. for an "at the market" program equity offering, potentially issuing and selling up to 20,000,000 shares of its common stock.

90M 0
Nov 07, 2025

10-Q filing | 89.6M shares outstanding

90M 0
May 09, 2025

10-Q filing | 88.7M shares outstanding

89M 0
Mar 05, 2025

8-K filing: Main Street Capital Corporation filed a prospectus supplement for an at-the-market offering of up to 20,000,000 shares of common stock and a prospectus supplement relating to 1,000,000 shares of common stock issuable pursuant to the direct stock purchase feature of its dividend reinvestment and direct stock purchase plan.

87M 0
Feb 28, 2025

10-K filing | 86.8M shares outstanding

87M 0
Nov 08, 2024

10-Q filing | 87.5M shares outstanding

87M 0
Sep 13, 2024

8-K filing: Main Street Capital Corporation completed an offering of $100,000,000 in aggregate principal amount of its 6.50% notes due 2027, resulting in net proceeds of approximately $101.3 million to repay outstanding indebtedness. ($101.3M proceeds)

86M 0
Aug 09, 2024

10-Q filing | 86.2M shares outstanding

86M 0
May 10, 2024

10-Q filing | 85.1M shares outstanding

85M 0
Feb 23, 2024

10-K filing | 81.9M shares outstanding

82M 0
Jan 12, 2024

8-K filing: Main Street Capital Corporation issued and sold $350 million in aggregate principal amount of 6.95% notes due 2029 in an offering that closed on January 12, 2024. ($346.3M proceeds)

83M 0
Nov 03, 2023

10-Q filing | 82.9M shares outstanding

83M 0
Aug 04, 2023

10-Q filing | 80.8M shares outstanding

81M 0
Jun 01, 2023

8-K filing: Main Street Capital Corporation entered into an equity distribution agreement with B. Riley Securities, Inc. for the potential sale of up to 15,000,000 shares of its common stock and terminated the equity distribution agreement with SMBC Nikko Securities America, Inc.

80M 0
May 05, 2023

10-Q filing | 79.6M shares outstanding

80M 0
Feb 24, 2023

10-K filing | 74.5M shares outstanding

74M 0
Nov 04, 2022

10-Q filing | 75.0M shares outstanding

75M 0
Aug 15, 2022

8-K filing: Main Street Capital Corporation completed a public offering of 1,345,500 shares of its common stock on August 15, 2022, which includes the exercise of the underwriter's option to purchase additional shares.

74M 0
Aug 05, 2022

10-Q filing | 73.9M shares outstanding

74M 0
Mar 04, 2022

8-K filing: Main Street Capital Corporation filed a prospectus supplement for the potential issuance and sale of up to 15,000,000 shares of common stock through an at-the-market offering and a prospectus supplement relating to 1,000,000 shares of Common Stock issuable pursuant to the direct stock purchase feature of Main Street's dividend reinvestment and direct stock purchase plan.

N/A 0
Nov 12, 2021

8-K filing: Main Street Capital Corporation entered into an equity distribution agreement with SMBC Nikko Securities America, Inc. to add SMBC as an additional agent under Main Street's 'at the market' program equity offering.

N/A 0
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