When Capstan Therapeutics agreed to be acquired by AbbVie for a record-breaking price of $2.1B upfront, it had just started its Phase 1 study in healthy volunteers, was well-capitalized, and was on a mission to put a range of autoimmune diseases into deep remission and maybe even cure them. Some people will wonder about the significance of this deal and what lessons it may have for their own ventures. We can share our insights. We’ve been on the Capstan journey since the beginning and are incredibly proud of the team and its work. This is a story worth hearing.

Stylus, a Raven company that emerged from stealth this week with funding from RA Capital and others, is positioned to overcome the existing limitations of genetic medicines with its suite of engineered recombinases that are designed to recognize a safe harbor site in the human genome and introduce a therapeutic payload with high specificity and integrity.