8 things to know: Fast-growing restaurant group to open new concept

Good morning readers. It's Bluesday. In case you missed it yesterday, it appears the Baltimore area and Maryland have lost another public company. BigBear.ai, the Columbia cybersecurity firm that went public in 2021 in a major $1.57 billion deal, listed its principal headquarters as McLean, Virginia, in regulatory filings Monday. Our Matt Hooke has the details and what it might mean for the firm after it recently named a new CEO. Now, let's get to the news. Crofton-based Titan Hospitality…