Kyle Lefkoff
InvestorGeneral Partner at Boulder Ventures
Colorado
Writes $1M β $5M checks
FoundedAmbrosia Biosciences Inc.ArcherDXBioptix DiagnosticsBlack Bear EnergyCommercialTribemiRagen Therapeutics
About
Kyle Lefkoff applies nearly four decades of mountain-guide risk management to investing, co-founding and chairing Array BioPharma through FDA approval and its $11.8B Pfizer exit while prioritizing durable realized returns.
Invests in
BiotechCloud ComputingData & InfrastructureEnergyEnterprise SoftwareMedical DevicesSaaS
Experience
- Boulder VenturesGeneral Partnercurrent1995 β presentBoulder, Colorado
- Ambrosia Biosciences Inc.Chairman of the Board and Foundercurrent2024 β presentBoulder, Colorado, United States
- Black Bear Energy Inc.Board Member and Lead Venture Capital Investor2016 β 2024Boulder, Colorado
- AIARE- American Institute for Avalanche Research and EducationFounding Chairman of the Board2013 β 2023Boulder, Colorado
- InvitaeBoard Member and Lead Venture Capital Investor2018 β 2023Boulder, Colorado, United States
- Array BioPharmaChairman of the Board and Founder1998 β 2018Boulder, Colorado
- miRagen Therapeutics, Inc.Board Member and Founder2007 β 2017Boulder, Colorado
- Trust Company of AmericaMember of the Board of Directors1999 β 2014Centennial, Colorado
- American Mountain Guides AssociationLifetime Member, Board Member and Treasurer2001 β 2010Boulder, Colorado
- Colorado Venture ManagementGeneral Partner1986 β 1995Boulder, Colorado
Education
- The University of Chicago Booth School of BusinessMaster of Business Administration (MBA), Finance1983 β 1985
- Vassar CollegeBachelor of Arts (B.A.), Economics1977 β 1981
Skills & more
+8 more
Corporate DevelopmentEquitiesFinanceInvestmentsMutual FundsIPOBusiness DevelopmentStrategic PlanningFrom Kyle's professional profile.
Same school
Also attended The University of Chicago Booth School of Business442
+ 436 more
Also attended Vassar College26
+ 20 more
Shared employers
Also worked at Array BioPharma3
Also worked at miRagen Therapeutics, Inc.1
Also worked at Trust Company of America1
Deals Β· 5
ArcherDXBoard seat
via Boulder Ventures Β· filed Apr 2020 Β· $1.6M raise
miRagen TherapeuticsBoard seat
via Boulder Ventures Β· filed Feb 2017 Β· $40.7M raise
Black Bear EnergyBoard seat
via Boulder Ventures Β· filed Aug 2016 Β· $2.5M raise
Bioptix DiagnosticsBoard seat
via Boulder Ventures Β· filed Feb 2015 Β· $2.3M raise
CommercialTribeBoard seat
via Boulder Ventures Β· filed Feb 2015 Β· $4M raise
Attribution from SEC filings, press coverage, and firm rosters.








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