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MAIN 424B2: Secondary offering

Filed with the SEC on · accession 0001396440-26-000139

MAIN filed a 424B2 (prospectus (offering)) with the SEC on Oct 28, 2026. Main Street Capital Corporation priced a public offering of $500 million in aggregate principal amount of 6.550% notes due 2030. The stock moved +1.1% by the first close after the filing.

Summary of the filing

Main Street Capital Corporation priced a public offering of $500 million in aggregate principal amount of 6.550% notes due 2030. The notes were offered at 99.258% of par, with net proceeds to the company of approximately $493.79 million before expenses.

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Key details

Aggregate principal amount of notes offered$500.0M
Public offering price per note$99
Total public offering price$496.3M
Underwriting discount$2.5M
Proceeds to issuer before expenses$493.8M
Estimated offering expenses$825K
IssuerMain Street Capital Corporation
Joint book-running managerRBC Capital Markets
Joint book-running managerJ.P. Morgan
Joint book-running managerSMBC Nikko
Joint book-running managerTruist Securities
Passive book-running managerHuntington Capital Markets

How MAIN stock reacted

Close before

$54.04

Oct 27, 2026

First close after

+1.05%

$54.61

5 trading days

+4.24%

$56.33

Since filing

+5.14%

$56.82

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Frequently asked questions

What did MAIN file with the SEC on Oct 28, 2026?

MAIN filed a 424B2 (Secondary offering). Main Street Capital Corporation priced a public offering of $500 million in aggregate principal amount of 6.550% notes due 2030. The notes were offered at 99.258% of par, with net proceeds to the company of approximately $493.79 million before expenses.

What does a secondary offering mean for MAIN stock?

New shares dilute existing holders and are often sold at a discount to the market price.

How do I read a 424B2?

The final terms of an offering of shares or bonds. Look at price, number of shares and the discount to the market price. Large offerings dilute existing shareholders.

Why are SEC filings important?

Public companies must tell the SEC about anything that can change their value — results, leadership changes, big deals, new shares, bankruptcy. Filings are the official source, often before the news. A 424B2 (prospectus (offering)): The final terms of an offering of shares or bonds.

How did MAIN stock react to this filing?

MAIN closed at $54.04 before the filing and $54.61 on Oct 28, 2026 (+1.05%). Five trading days later: $56.33 (+4.24%).

Other MAIN SEC filings

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