🦊/Investors

Bluebird VenturesFull Portfolio

14 tracked investments · listed companies and verified rows first

GRAILgrail.comin𝕏NASDAQ: GRAL

GRAIL develops the Galleri blood test for multi-cancer early detection using next-generation sequencing and machine learning to screen for multiple deadly cancer types before symptoms appear.

AI & Machine LearningBiotechHealthtechMedical DevicesMenlo Park, US

Jeffrey T. Huber(Director)Joshua Ofman, MD, MSHS(Chief Executive Officer)inAaron Freidin(Executive Officer)inJosh Ofman(Executive Officer)inRobert Ragusa(Executive Officer, Director)Jennifer Cook(Executive Officer, Director)in

PartnerJeffrey Bird· solo GP

Co-investorsAmino CapitalARCH Venture PartnersBezos ExpeditionsDecheng CapitalDentsu VenturesFelicis Ventures+8 more

Leyden Labsleydenlabs.cominSeries B · Jan 2022 · $140M✓ verified

Leyden Labs develops nasal sprays containing antibodies that target respiratory viruses such as influenza and COVID at the nasal mucosa to prevent initial infection and transmission.

BiotechDeep TechHealthtechLeiden, NL

Koenraad Wiedhaup(Founder & Chief Executive Officer)inRonald Brus(Founder & Chief Growth Officer)inJaap Goudsmit(Founding Scientist and Senior Advisor)inDinko Valerio(Founder and Chair of the Supervisory Board)inJintanat Ananworanich(Chief Medical Officer)inClarissa Koch(Chief Scientific Officer)in

Co-investorsClavystBioF-Prime CapitalGV (Google Ventures)Casdin CapitalEuropean Innovation Council FundEuropean Investment Bank+6 more

Epiriumepirium.comDec 2019 · $85M

Epirium Bio develops novel oral therapeutics targeting mitochondrial dysfunction and muscle diseases, particularly muscular dystrophy.

BiotechMedical DevicesSan Diego, US

Pam Taub(M.D., FACC, Founder)Alan Maisel(M.D., Founder)Francisco Villarreal(M.D., Ph.D., Founder)Jonathan Taub(Co-founder and first Chief Executive Officer)Guillermo Ceballos(M.D., Founding Scientist)Pam Taub, M.D., FACC(Co-founder)

PartnerJeffrey Bird· solo GP

Co-investorsBroadview VenturesLongitude CapitalAdams Street PartnersARCH Venture PartnersVertex VenturesVertex Ventures HC

Forty Seven Incfortyseveninc.comin𝕏acquired by Gilead · Mar 2020

Gilead discovers, develops, and delivers therapeutic medicines for life-threatening diseases, with focus on virology, oncology, and inflammation across 35+ countries.

BiotechHealthtechMedical DevicesPalo Alto, US

Ravindra Majeti(Director)Irving Weissman(Director)Eric Jensen(Executive Officer)

BoardChristopher Schaepe(Director)inJeffrey Bird(Director)inDennis Henner(Director)

PartnerJeffrey Bird· solo GP

Co-investorsLightspeed Venture PartnersSofinnova Ventures

Kriyakriya.coinMay 2022 · $270M

Kriya provides working capital loans and business finance products to UK and European businesses, helping them manage cash flow, fund wholesale orders, and scale their buyer base.

FintechSaaS

Anil Stocker(Founder)in

Co-investorsMouro CapitalNorthzoneForesite CapitalJDRF T1D FundNarya CapitalPatient Square Capital+2 more

Kriya Therapeuticskriyatherapeutics.comin𝕏Jun 2021 · $1.2B

Kriya Therapeutics is a biopharmaceutical company that develops and manufactures one-time gene therapies aimed at treating prevalent chronic diseases.

BiotechHealthtechMorrisville, US

Shankar Ramaswamy(Co-Founder, Chairman & CEO)inRoger Jeffs(Co-Founder & Vice Chairman)inFraser Wright(Scientific Co-Founder & Chief Gene Therapy Officer)inShankar Ramaswamy, M.D.(Founder)inMichele Stone(Chief Scientific Officer)inKatherine Eade(Chief Legal Officer)

PartnerJeffrey Bird· solo GP

Co-investorsPatient Square CapitalPremji InvestAmplo VenturesForesite CapitalJDRF T1D FundNarya Capital+2 more

Medikinemedikine.comin

Medikine engineers cytokine mimetics — peptide-based therapeutics that mimic natural cytokines — to treat serious diseases, with a focus on immuno-oncology.

BiotechHealthtechSan Diego, US

William J. Dower(Co-founder and Scientific Advisor)Michael C. Needels(Co-founder and CTO)Ronald W. Barrett(CEO and Chairman of the Board)Joseph Leveque(CEO, President, and Board Member)in

PartnerJeffrey Bird· solo GP

Nutcracker Therapeuticsnutcrackerx.comSep 2020Acquired

RNA therapeutics company with a chip-based mRNA manufacturing platform; acquired by Medici Therapeutics in November 2025.

BiotechEmeryville, US

Igor Khandros(Executive Officer, Director)

PartnerJeffrey Bird· solo GP

Co-investors+ND CapitalARCH Venture PartnersSutter Hill Ventures

Procyrionprocyrion.comin𝕏Feb 2024 · $57.7M

Procyrion develops medical devices for circulatory support in heart failure treatment, supported by a team of cardiologists and medical device industry veterans.

BiotechHealthtechMedical DevicesHouston, US

Reynolds, III M. Delagado(Director)Benjamin A. Hertzog(Executive Officer, Director)Dr. Fain(Founder/Executive)Jason J Heuring(Executive Officer)Bryan E. Nearn(Vice President)

BoardLeo III E Linbeck(Director)

PartnerJeffrey Bird· solo GP

Co-investorsScientific Health DevelopmentTexas VenturesFannin Goldenrod Holdings

Other

Tracked investments with no reachable website or further public details — typically companies that wound down, renamed, or were absorbed.

Epirium BioHelixPortola PharmaceuticalsTeneobioVerinata Health

Rows marked “SEC filing” are inferred from directors named on the company's SEC Form D — public regulatory data, not a portfolio list published by the firm.