Peter Kolchinsky and Raj Shah raise a $300M fund devoted to biotech startups

Peter Kolchinsky and Raj Shah have another $300 million-plus to play with on the biotech venture side of their investment business.

The two announced Monday morning that they’ve put together their first pure-play venture fund at RA Capital Management, which has been known to bet on just about every angle in healthcare investing — from rounds to follow-on investments at public companies.