Main Street Capital Corporation

Item 1A. RISK FACTORS

You should carefully consider the risks described below and all other information contained in this Quarterly Report on Form 10-Q, including our interim consolidated financial statements and the related notes thereto, before making a decision to purchase our securities. The risks and uncertainties described below are not the only ones facing us. Additional risks and uncertainties not currently known to us or that we currently deem to be immaterial also may have a material adverse effect on our business, financial condition and/or operating results, as well as the market price of our securities.

In addition to the other information set forth in this report, you should carefully consider the risk factors described in Item 1A. Risk Factors in our Annual Report on Form 10-K for the fiscal year ended December 31, 2024 that we filed with the SEC on February 28, 2025, which could materially affect our business, financial condition and/or operating results.

Changes to U.S. tariff, trade and economic policies may have a negative effect on our  and in our Quarterly Reportfolio companies and, in turn, harm us.

The U.S. has recently enacted, and subsequently rescinded and/or temporarily susp on Form 10-Q for the quarter ended, significant new tariffs against certain countries, prompting reciprocal tariffs against the U.S. Additionally, the current U.S. presidential administration and  March 31, 2025 that we filed with the U.S. Congress have directed various federal agencies to further evaluate other keSEC on May 9, 2025, which could materially aspffects of U.S. trade and economic policies, including changes to domestic fisc our business, financial policies aimed at reducing U.S. federal expenditures, and there has been ongoing discussicondition and commentary regard/or operating further potential significant changes to such tariff, trade and economic policies. results.

These developments, and the perception that further re are no material changes may occur or continue to occur, have contributed to volatility in global financial marketto the risk factors and may have a material adverse effect on global economic conditions. This may significants previously reduce global trade, affect the ability of businesses to procure new or extend existing government contracts and have other negative impacts on U.S. businesses. Any ofdisclosed in our Annual Report on Form 10-K for these factors could depress economic activity  fiscal year ended December 31, 2024 and may restrictin our portfolio companies access to suppliers or customers and have a material adverse effect onQuarterly Report on Form 10-Q for their business, financial condition and results of operations, which in turn would negatively impact us.

 quarter ended March 31, 2025.