Main Street Capital Corporation filed an Issuer Free Writing Prospectus on October 27, 2026, disclosing the final pricing terms for a $500,000,000 offering of 6.550% Notes due January 15, 2030.

Key Highlights

  • Aggregate principal: $500,000,000 in 6.550% Notes due 2030.
  • Issue price: 99.258% of principal amount, with a yield to maturity of 6.800%.
  • Spread: +200 basis points over the benchmark 4.875% Treasury due October 15, 2029.
  • Settlement: October 29, 2026 (T+2), with interest payable January 15 and July 15 each year, commencing July 15, 2027.
  • Expected ratings: BBB- Stable from both S&P and Fitch.
  • Use of proceeds: To initially repay outstanding indebtedness, including amounts outstanding under the company's multi-year revolving credit facility and/or its special purpose vehicle revolving credit facility.
  • Active bookrunners: RBC Capital Markets, LLC; J.P. Morgan Securities LLC; SMBC Nikko Securities America, Inc.; and Truist Securities, Inc.

Main Street Capital's $500 Million Notes Offering: Terms and Structure

According to the filing, Main Street Capital Corporation (NYSE:MAIN) set the final terms of its 6.550% Notes due 2030 in a pricing term sheet dated October 27, 2026. The notes carry a coupon of 6.550%, were priced at 99.258% of par, and yield 6.800% to maturity. The spread to the benchmark Treasury was set at +200 basis points. CUSIP 56035L AM6 and ISIN US56035LAM63 identify the securities, and the underwriting discount is disclosed as 0.50%.

The filing describes an optional redemption feature. Prior to December 15, 2029 (the "Par Call Date"), the company may redeem the notes in whole or in part at a redemption price equal to the greater of a make-whole amount based on the Treasury Rate plus 30 basis points, or 100% of principal, plus accrued and unpaid interest. On or after the Par Call Date, redemption may occur at 100% of principal plus accrued and unpaid interest. Notes are denominated in minimum amounts of $2,000 and integral multiples of $1,000 in excess thereof.

The filing also discloses a change of control repurchase provision: if a Change of Control Repurchase Event occurs prior to maturity, holders have the right to require the company to repurchase their notes for cash at 100% of principal plus accrued and unpaid interest to, but not including, the repurchase date. The term sheet states that proceeds will be used to initially repay outstanding indebtedness under the company's revolving credit facilities. The filing references Registration No. 333-285405 and a prospectus dated February 28, 2025.

What Was Disclosed

Main Street Capital Corporation disclosed the final pricing terms for a $500,000,000 issuance of 6.550% Notes due January 15, 2030, including coupon, yield, spread, redemption provisions, use of proceeds, and the syndicate of underwriters involved in the offering.