One biotech company is leaving, one is staying. What does that say about Baltimore?

Thrive Earlier Detection Corp., a startup company based on early cancer testing technology developed at the Johns Hopkins University, was snatched up three years ago and is now planning to move out of Baltimore. Another startup spun from the same revered Hopkins team called Haystack Oncology was bought last year by New Jersey-based giant Quest Diagnostics but plans to stay long term in the city.