Main Street Capital (MAIN) investor relations material

Executive summary

• Delivered strong first quarter results with distributable net investment income (DNII) of $90.8 million ($1.00 per share) and net investment income (NII) of $84.6 million ($0.93 per share), in line with expectations and prior guidance.

• Significant growth in the lower middle market (LMM) investment portfolio, with $205.9 million in new and follow-on investments and a fully exited high-performing investment generating a material realized gain.

• Maintained a conservative leverage profile, strong liquidity, and investment grade ratings (Fitch and S&P: BBB-/stable), supporting financial stability and future portfolio growth.

• Declared a supplemental dividend and increased regular monthly dividends for Q2 and Q3 2026, reflecting strong performance and outlook.

• Focused on a diversified $5.7 billion portfolio across 224 companies, with an internally managed BDC structure and significant recurring fee income from the asset management business.

Financial highlights

• Total investment income for Q1 2026 was $140.1 million, up 2.2% year-over-year, with interest income rising and dividend income declining due to exits and lower non-recurring dividends.

• DNII before taxes was $94.1 million, down 1% year-over-year, with a margin of 67.1%; NII was $84.6 million, down 2% year-over-year.

• Net realized gains of $18 million recognized in the quarter, primarily from LMM and private loan exits.

• Operating expenses rose year-over-year, mainly from higher interest and compensation expenses; operating expense to assets ratio was 1.3%.

• Net asset value (NAV) per share increased to $33.46, up 0.4% sequentially and $1.43 year-over-year.

Outlook and guidance

• Management expects continued favorable performance in Q2 2026, with DNII before taxes projected at least $1.00 per share and another significant supplemental dividend anticipated.

• Asset management business and Private Loan strategy expected to drive further income diversification and growth.

• ATM equity program provides efficient access to capital, supporting growth and leverage discipline.

• The company’s ability to issue additional debt and make distributions is subject to compliance with covenants and maintenance of required financial ratios.