Investing Profile

Jonathan Leff


Partner at Deerfield Management

Photo of Jonathan Leff, Partner at Deerfield Management

Signal uses Gmail to reveal intro paths. Email content is never read.

Sign in with Google →
$10.0M - $50.0M
CompanyStageDateRound SizeTotal Raised
Adaptive Phage Therapeutics
Series BMay 2021$41M
Co-investors: Martin Heidecker (AMR Action Fund)
Mirum Pharmaceuticals
Series ANov 2018$120M
Co-investors: Ed Mathers (New Enterprise Associates (NEA)), Patrick Heron (Frazier Healthcare Partners), Niall O’Donnell (RiverVest)
Series CJan 2015$10M
Co-investors: Carole Nuechterlein (Roche Venture Fund)
Audentes Therapeutics
Series BDec 2014$43M
Co-investors: Kush Parmar (5am Ventures), Stephen Squinto (OrbiMed), Jonathan Silverstein (OrbiMed), Tom Woiwode (Versant Ventures)
Hana Biosciences
Private Equity RoundJun 2010$100M
Altus Pharmaceuticals
Series CMay 2004$51M