Item 7.01 Regulation FD Disclosure.
On June 11, 2026, Main Street Capital Corporation, which wholly owns the Registrant's investment adviser and
administrator, MSC Adviser I, LLC, posted an updated investor presentation on its corporate website in connection with its
analysts' and investors' day. The presentation includes certain updated information about the Registrant and will remain
available at https://www.mainstcapital.com/investors until at least July 14, 2026.
The information disclosed under this Item 7.01 is being furnished and shall not be deemed "filed" for purposes of Section
18 of the Securities Exchange Act of 1934 and shall not be deemed incorporated by reference into any filing made under
the Securities Act of 1933, except as expressly set forth by specific reference in such filing.