<p>Main Street Capital Corporation has completed a new investment totaling $50.8 million in UBM ParentCo, LLC, doing business as United Business Mail. This financing supports UBM’s merger with Mystic Logistics Holdings, LLC, an existing Main Street portfolio company. Main Street’s investment includes a mix of first lien, senior secured term debt and a minority equity stake, expanding its portfolio and partnership reach in the logistics and mail services sector. Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. Main Street Capital Corporation published the original content used to generate this news brief via PR Newswire (Ref. ID: DA56748) on January 06, 2026, and is solely responsible for the information contained therein. © Copyright 2026 - Public Technologies (PUBT)</p>

Main Street Capital Invests $50.8 Million in United Business Mail Merger