Investing Profile

Jonathan Leff

InvestorVC

Partner at Deerfield Management

Photo of Jonathan Leff, Partner at Deerfield Management

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$10.0M - $50.0M
$25.0M
6
CompanyStageDateRound SizeTotal Raised
Adaptive Phage Therapeutics
Series BMay 2021$41M
$61M
Co-investors: Martin Heidecker (AMR Action Fund)
Mirum Pharmaceuticals
Series ANov 2018$120M
$120M
Co-investors: Ed Mathers (New Enterprise Associates (NEA)), Patrick Heron (Frazier Healthcare Partners), Niall O’Donnell (RiverVest)
AveXis
Series CJan 2015$10M
$75M
Co-investors: Carole Nuechterlein (Roche Venture Fund)
Audentes Therapeutics
Series BDec 2014$43M
$140M
Co-investors: Kush Parmar (5am Ventures), Stephen Squinto (OrbiMed), Jonathan Silverstein (OrbiMed), Tom Woiwode (Versant Ventures)
Hana Biosciences
Private Equity RoundJun 2010$100M
$100M
Altus Pharmaceuticals
Series CMay 2004$51M
$51M