Dan Karlin

Active Investor

Chief Medical Officer at Definium Therapeutics

Chicago, Illinois

Dan Karlin, Chief Medical Officer at Definium Therapeutics is an active investor based in Chicago, Illinois. This profile covers what Dan Karlin backs, at which stage, and how founders can reach out in 2026.

Investor type: Angel
Stages: Pre SeedSeed
Invests in: Healthcare & BiotechBiotech & PharmaSaaS & EnterpriseConsumer & RetailIoT & Connected Devices
Location: Chicago, Illinois
Typical check: $150K
Past investments: 6

Notable investments

Tufts Medical CenterRecovery Delivered NightWare - Treating nightmares with digital therapeuticsSonara HealthPfizerEleanor Health

How to reach Dan Karlin

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Frequently Asked Questions

What does Dan Karlin invest in?

Dan Karlin invests in Healthcare & Biotech, Biotech & Pharma, SaaS & Enterprise and Consumer & Retail, typically at Pre Seed and Seed. Match your sector and stage, then reach out with a personalized pitch.