Aivo Biosciences, Inc. (angel) - Transformative Small Molecule CNS Therapeutics (link)

CrossBridge Bio, Inc. (angel, seed, Board) - Next-generation Antibody Drug Conjugates (link)

AstralBio, Inc. (co-Founder) - Next-generation Antibodies for Cardiometabolic Diseases (link, multiple collaborations publicly with iBio (NASDAQ: IBIO))

VitaForge, Inc. (co-Founder) - Longevity company in stealth mode

Helicore BioPharma, Inc. (co-Founder) - Clinic-ready multi-product biopharmaceutical company focused on the discovery and development of novel weight-loss therapeutics. (link)

ImmuneStudio, Inc. (co-Founder) - Stealth mode biotech focused on next-generation antibodies

Mach5 Therapeutics, Inc. (co-Founder) - Innovative Biologics for Chronic Inflammatory Disorders

20+ investments via AngelList / sydicated deals