Main Street dividend for Q2 / 2018

HOUSTON, Feb. 21, 2018 /PRNewswire/ -- Main Street Cap
ital Corporation (NYSE: MAIN) ("Main Street") is pleased to announce that its Board of Directors declared regular monthly cash dividends of $0.19 per share for each of April, May and June 2018. These monthly dividends, which will be payable pursuant to the table below, total $0.57 per share for the second quarter of 2018, which is consistent with the regular monthly dividends declared for the first quarter of 2018 and represents a 2.7% increase from the regular monthly dividends paid for the second quarter of 2017. Since its October 2007 initial public offering, Main Street has periodically increased the amount of its regular monthly dividends paid per share, and has never reduced its regular monthly dividend amount per share. Including all dividends declared to date, Main Street will have paid $22.53 per share in cumulative cash dividends since its October 2007 initial public offering at $15.00 per share.

Summary of Second Quarter 2018 Regular Monthly Dividends
Declared	Ex-Dividend Date	Record Date	Payment Date	Amount Per Share
2/20/2018	3/20/2018	3/21/2018	4/16/2018	$0.19
2/20/2018	4/19/2018	4/20/2018	5/15/2018	$0.19
2/20/2018	5/18/2018	5/21/2018	6/15/2018	$0.19
		Total for Second Quarter 2018:		$0.57