San Francisco · Seed–Late Stage · 17 people tracked
Also known as ECOR1 CAPITAL, LLC
Find your way into EcoR1 Capital
2,859 people in our graph share verified history with the EcoR1 Capital team — schools, employers, funds. One of them is your warm intro.
Investment thesis
EcoR1 Capital takes a holistic yet highly targeted approach to identifying innovative therapeutics capable of meaningfully improving patient lives. The firm positions itself as patient-driven, investing with conviction in companies believed to have the greatest potential to benefit patients. It emphasizes fluency in both the scientific and strategic dimensions of biosciences, enabling it to act as a thought partner to its portfolio companies. Its evaluation framework is multi-dimensional, beginning with an assessment of management quality, scientific strength, and rational financing strategies before conducting deeper diligence.
Source: firm website, verified Sep 15, 2026.
Team · 17 people
from the firm's website & public directoriesWhat they invest in
from 64 of 76 portfolio companiesBiotech ×57Healthtech ×25Medical Devices ×22AI & Machine Learning ×12Deep Tech ×12Digital Health ×12Enterprise Software ×2Gaming ×2
HQs:United States×50Australia×2Canada×1China×1Ukraine×1
Who they back
founder profiles across 39 portfolio companiesFounding team size:solo founder×132 founders×153 founders×64+ founders×5
Where their founders studiedfrom 33 founders with education data
Harvard University ×5University of California, Berkeley ×4Massachusetts Institute of Technology ×3Cornell ×2Dartmouth College ×2Harvard Business School ×2Harvard Medical School ×2Princeton University ×2
What their founders studiedfrom 29 founders with field-of-study data
Life Sciences ×15Chemistry ×9Medicine ×5Engineering ×2
Where their founders worked beforefrom 39 founders with career history
Harvard Medical School ×3Receptos ×3Amgen ×2ARCH Venture Partners ×2Atlas Venture ×2Broad Institute of MIT and Harvard ×2Exo Therapeutics ×2GNF ×2
18 founders hold a PhD · 3 hold an MBA (of 31 with degree data)
Investments · 76 tracked
founders shown can be your intro pathBy year:2026 · 32025 · 12024 · 52023 · 12022 · 22021 · 42020 · 22019 · 12018 · 32017 · 12015 · 427 dated
Aktis Oncology discovers and develops targeted radiopharmaceuticals for treating solid tumors.
BiotechHealthtechMedical DevicesBoston, US
Todd Foley(Co-founder and Chairman)inPatrick Baeuerle(Co-founder & Advisor)inShulamit Ron-Bigger(Executive Officer)inKyle D. Kuvalanka(Chief Financial Officer)inAkos Czibere(Chief Medical Officer)inPaul L. Feldman(Chief Scientific Officer)in
Board seatOleg Nodelman· per SEC Form D
Co-investorsAndreessen HorowitzMPM BioImpactMRL Ventures FundPappas CapitalRA CapitalTCG Crossover+5 more
Atara Biotherapeutics develops allogeneic T-cell immunotherapies using its proprietary EBV T-cell platform to harness the immune system for treating disease.
BiotechHealthtechMedical DevicesThousand Oaks, US
AnhCo Nguyen(President and Chief Executive Officer)
Co-investorsDag VenturesHEALTHCARE ROYALTY PARTNERSKleiner PerkinsDomain AssociatesFidelity Investments
aTyr is a clinical-stage biotechnology company developing therapies derived from tRNA synthetase biology to treat fibrosis and inflammation, with its lead candidate efzofitimod in clinical trials for interstitial lung disease.
BiotechHealthtechMedical DevicesSan Diego, US
Paul Schimmel(Non-Management Director)John D. Mendlein(Executive Officer, Director)David Weiner(Executive Officer)inFrederic Chereau(Executive Officer)
BoardAmir Nashat(Non-Management Director)inAkkaraju Srinivas(Non-Management Director)
Co-investorsCardinal PartnersSofinnova VenturesDomain AssociatesDomain PartnersPolaris PartnersSamsara BioCapital+1 more
Collegium Pharmaceutical is a biopharmaceutical company developing a portfolio of medications to treat serious medical conditions.
BiotechCanton, US
Michael Heffernan(Executive Officer, Director)inPaul Brannelly(Executive Officer)inVikram Karnani(President and Chief Executive Officer, and Director)in
BoardEran Nadav(Director)John Freund(Director)Patrick Heron(Director)in
Co-investorsAPERTURE Venture PartnersFrazier Life SciencesLongitude CapitalBoston Millennia PartnersRA Capital
Cyclerion is a biopharmaceutical company developing therapeutics for neuropsychiatric diseases, with a lead candidate (CYC-126) for treatment-resistant depression that pairs anesthetic agents with a personalized biofeedback-driven device.
BiotechDigital HealthMental HealthCambridge, US
William Huyett(Executive Officer)Mark G. Currie(Executive Officer)inRegina M. Graul(President and Chief Executive Officer)inOle Isacson(Director)Stephanie Lovell(Director)Marsha Fanucci(Director)
Co-investorsPappas CapitalAberdare VenturesInvusPolaris Partners
Denali Therapeutics develops therapeutics for neurodegenerative diseases.
BiotechHealthtechMedical DevicesSan Francisco, US
Marc Tessier-Lavigne(Director)inRyan Watts(Executive Officer, Director)inAlexander O. Schuth(Executive Officer)inRyan J. Watts(President, Chief Executive Officer and Director)inCarole Ho(Executive Officer)inSteve E. Krognes(Director)in
Co-investorsARCH Venture PartnersF-Prime CapitalForesite CapitalARCH VentureFlagship PioneeringFlagship Ventures+1 more
Editas Medicine develops gene editing medicines using CRISPR/Cas9 and CRISPR/Cas12a technology to treat serious diseases including blood disorders, cardiovascular conditions, and cancer.
BiotechDeep TechMedical DevicesCambridge, US
Feng Zhang(Scientific Founder, Core Member, Broad Institute of MIT and Harvard)inGeorge Church(Scientific Founder, Professor of Genetics, Harvard University and MIT)inKeith Joung(Scientific Founder, Professor of Pathology, Harvard Medical School)inDavid Liu(Scientific Founder, Professor of Chemistry and Chemical Biology, Harvard University)inKatrine Bosley(Executive Officer, Director)inVic Myer(Executive Officer)in
Co-investorsSofinnova VenturesDeerfield Management CompanyFlagship VenturesPolaris Partners
Freenome develops early-stage cancer detection technology using blood tests to identify cancer in its earliest, most treatable phases.
AI & Machine LearningBiotechDigital HealthHealthtechMedical DevicesLondon
Riley Ennis(Co-Founder and Chief Product Officer)inCharles Roberts(Director)inGabriel Otte(Director)inAdam Stone(Chief Executive Officer and Director)Michael Altman(Chief Business Officer and Director)Shmuel (Sam) M. Cohn(Chief Financial Officer)
Co-investorsRA CapitalAgent CapitalAME Cloud VenturesAndreessen HorowitzArtis VenturesAsset Management Company+9 more
Gossamer Bio is a clinical-stage biopharmaceutical company developing seralutinib, an investigational drug candidate for treating pulmonary arterial hypertension and pulmonary hypertension associated with interstitial lung disease.
BiotechDigital HealthMedical DevicesSan Diego, US
Faheem Hasnain(Executive Officer, Director)inChristian Waage(Executive Officer)inSheila Gujrathi, MD(Founder)inBryan Giraudo(Executive Officer)Laura Carter, Ph.D.(Executive Officer)Robert Smith(Executive Officer)
Co-investorsARCH Venture PartnersBay City CapitalFoothill VenturesNew Enterprise Associates (NEA)Samsara BioCapitalOmega Funds
Intellia Therapeutics develops in vivo and ex vivo CRISPR/Cas9 gene editing therapies aimed at treating the root causes of severe genetic diseases, with lead candidates for hereditary angioedema and ATTR amyloidosis.
BiotechDeep TechHealthtechCambridge, US
Nessan Bermingham(Executive Officer, Director)inJennifer Doudna(Co-founder)Jose Rivera(Executive Officer)inJohn Leonard(President and Chief Executive Officer)inJames Basta(Executive Vice President, General Counsel and Corporate Secretary)inEdward Dulac(Executive Vice President, Chief Financial Officer)in
Co-investorsage1Atlas VentureAvoro Capital AdvisorsForesite CapitalOrbiMedFidelity Investments
Kura Oncology is a company in the oncology/medtech sector that provides grant support for independent medical education programs designed to enhance healthcare professionals' ability to diagnose and treat patients in Kura Oncology's therapeutic areas of interest.
BiotechDigital HealthMedical DevicesLa Jolla, US
TROY WILSON(Executive Officer, Director)inPINGDA REN(Executive Officer)inYI LIU(Executive Officer)inTroy Wilson(Founder)inTroy E. Wilson(President and Chief Executive Officer, Chairman of the Board)inHEIDI HENSON(Executive Officer)in
Co-investorsARCH Venture PartnersAvoro Capital AdvisorsForesite CapitalNextech InvestOUP (Osage University Partners)ARCH Venture
Neurogene develops gene therapy treatments for rare neurological diseases.
BiotechDeep TechDigital HealthLongevityMedical DevicesNew York, US
Rachel McMinn(Founder and Chief Executive Officer)inRachel McMinn, Ph.D.(Founder and Chief Executive Officer)
BoardCory Freedland(Director)inStephen Biggar(Director)
Co-investorsSamsara BioCapitalCasdin CapitalREDMILERTW Investments L.P.William Blair
Nuvation Bio is a global oncology company that develops novel cancer therapies through its own drug discovery programs and business development, serving cancer patients.
BiotechHealthtechNew York, US
David Hung(Founder)inDavid Hung, M.D.(Executive Officer, Director)inDavid Hanley(Chief Technical Operations Officer)inGary Hattersley(Chief Scientific Officer)inStacy Markel(Chief People Officer)inPhilippe Sauvage(Chief Financial Officer)in
Co-investorsAisling CapitalDecheng CapitalVertex Ventures ChinaOmega Funds
ORIC Pharmaceuticals is a clinical-stage oncology company developing therapies aimed at overcoming cancer treatment resistance, including innate, acquired, and bypass resistance.
BiotechHealthtechSouth San Francisco, US
Richard Heyman(Chairman, Founder, Scientific Advisory Board)inCharles Sawyers(Founder, Scientific Advisory Board)Scott Lowe(Founder, Scientific Advisory Board)Dominic Piscitelli(Chief Financial Officer)inPratik Multani(Chief Medical Officer)inJacob Chacko(President, Chief Executive Officer and Board Member)in
Co-investorsNew Enterprise Associates (NEA)Nextech InvestTaiho Ventures, LLCThe Column GroupOrbiMed
Relay Therapeutics develops the Dynamo platform, which applies motion-based drug design principles to discover therapeutic drugs by integrating protein dynamics simulations with experimental and computational techniques.
AI & Machine LearningBiotechDeep TechCambridge, US
Donald A. Bergstrom(Executive Officer)inSanjiv K. Patel(Director, President and Chief Executive Officer)inSekar Kathiresan(Director)Douglas S. Ingram(Director)Mark Murcko(Director)Laura Shawver(Director)
Co-investorsCommonweal VenturesForesite CapitalNextech InvestSoftBank Vision FundCurie.BioGeneral Catalyst+1 more
Scholar Rock is a biopharmaceutical company that develops therapies targeting growth factor proteins to treat serious diseases.
BiotechCambridge, US
Nagesh Mahanthappa(Executive Officer, Director)inTimothy Springer(Director)David Hallal(Chief Executive Officer, Chairman and Director)inAkshay Vaishnaw(President of Research & Development and Director)inR. Keith Woods(Chief Operating Officer)inVikas Sinha(Chief Financial Officer)in
Co-investorsAisling CapitalARCH Venture PartnersARCH VenturePolaris Partners
Clinical-stage biopharmaceutical company focused on discovery and development of innovative medicines for serious diseases by targeting the Transforming Growth Factor Beta pathway.
BiotechCambridge, US
Nagesh Mahanthappa(Executive Officer, Director)Timothy Springer(Director)Yung H. Chyung(Executive Officer)Elan Z. Ezickson(Executive Officer)Akshay Vaishnaw(President of Research & Development and Director)R. Keith Woods(Chief Operating Officer)in
Co-investorsSamsara BioCapitalARCH VentureARCH Venture PartnersPolaris Partners
Shattuck Labs is a biotechnology company developing biologic medicines targeting TNF receptors, including the TL1A/DR3 axis, for patients with cancer and inflammatory or life-altering diseases.
BiotechHealthtechAustin, US
Josiah Hornblower(President/CEO)inTaylor(Co-founder & Chief Executive Officer, Board Member)
BoardWalter Loewenbaum(Director)
Co-investorsHatteras Venture PartnersOrbiMedREDMILET. Rowe Price
Dewpoint Therapeutics develops condensate-modulating drugs by using an integrated platform that maps, measures, and modulates biomolecular condensates to identify druggable targets and disease mechanisms.
AI & Machine LearningBiotechDeep TechBoston, US
Richard Young, Ph.D.(Director)Anthony Hyman, Ph.D.(Director)Tony Hyman(Scientific Co-founder)Rick Young(Scientific Co-founder)Elisabeth Leiderman(Executive Officer)inAmeet Nathwani, M.D.(Executive Officer, Director)in
Co-investorsARCH Venture PartnersSamsara BioCapital6 Dimensions CapitalGeneral CatalystInnovation EndeavorsLeaps by Bayer+5 more
Epikast provides AI-powered tools for medical science liaisons and field teams to analyze clinical interactions with physicians and patients, and to access synthesized scientific information in their disease areas.
AI & Machine LearningDigital HealthEnterprise SoftwareHealthtechSaaSBrooklyn, US
Evangelos Vergetis(Executive Officer, Director)
BoardBrad Prosek(Director)Stelios Papadopoulos(Director)Daphne Karydas(Director)Alexandros Tzoukas(Director)
Board seatOleg Nodelman· per SEC Form D
Co-investorsVedanta Capital
ReCode develops mRNA and gene correction therapeutics for genetic diseases, using proprietary lipid nanoparticle technology to deliver treatments to specific organs.
AI & Machine LearningBiotechHealthtechMedical DevicesMenlo Park, US
Dr. Daniel J. SiegwartArthur E Johnson(Executive Officer, Director)
Board seatOleg Nodelman· per SEC Form D
Co-investorsAju IB Invesment CorporationEvolution VC PartnersMPM BioImpactOrbiMedOUP (Osage University Partners)Pfizer Venture Investments+6 more
BiotechBoston, US
Adam Friedman(Executive Officer, Director)inGary Glick(Executive Officer, Director)inAndrew Fedder(Executive Officer)inDarrin Stuart(Executive Officer)inErica Jackson(Executive Officer)inAmanda Valentino(Executive Officer)
Board seatOleg Nodelman· per SEC Form D
Co-investorsAtlas VentureAvoro Capital AdvisorsFrazier Life SciencesNextech InvestVida VenturesAbingworth+3 more
Accent Therapeutics is a biotechnology company focused on discovering and developing small molecule drugs to improve health outcomes for cancer patients.
BiotechHealthtechLongevity
Co-investorsAtlas VentureDroia VenturesGV (Google Ventures)The Column GroupJJDCJohnson & Johnson Innovation – JJDC+1 more
Actio is a precision medicine company that translates genetic insights into new therapeutics, developing drugs that target the genes underlying both rare diseases and more prevalent conditions.
BiotechDeep Tech
David Breckenridge(Founder)in
Co-investorsCanaan Partners
Affinia Therapeutics develops genetically engineered adeno-associated virus (AAV) therapies for treating genetic diseases, focusing initially on cardiovascular and central nervous system conditions.
AI & Machine LearningBiotechDeep TechWaltham, US
Luc Vandenberghe(Director)Aaron Tward, M.D., Ph.D.(Scientific Co-Founder)Botond Roska, M.D., Ph.D.(Scientific Co-Founder)Luk Vandenberghe, Ph.D.(Scientific Co-Founder and Adviser, and Board Member)Rami Daoud(Executive Officer)inRick Modi(Chief Executive Officer, Board Member)
Co-investorsAtlas VentureEight Roads VenturesF-Prime CapitalGV (Google Ventures)New Enterprise Associates (NEA)TCG Crossover+1 more
Affinivax was a clinical-stage biopharmaceutical company that developed next-generation pneumococcal vaccines using its proprietary Multiple Antigen Presenting System (MAPS) platform technology.
BiotechMedical DevicesCambridge, US
Richard Malley(Director)inKamran Tavangar(Executive Officer)Steven Brugger(Executive Officer, Director)in
BoardRobert More(Director)Frances Heller(Director)George Siber(Director)
Co-investorsBain Capital Life SciencesForesite CapitalBain CapitalRock Springs CapitalT. Rowe Price
Ajax Systems produces wired and wireless intrusion protection devices for professional security installations, offered through two product lines: Baseline for general projects and Ajax Superior for advanced, high-security applications that require partner accreditation and training.
AI & Machine LearningCybersecurityEnterprise SoftwareHardwareIoT
Co-investorsEndeavor CatalystHorizon Capital
Ajax Therapeutics is a biotech company developing Type II JAK2 inhibitors for the treatment of myeloproliferative neoplasms (MPNs), including myelofibrosis, using computational chemistry and structural biology in its drug discovery.
AI & Machine LearningBiotechHealthtechNew York, US
Martin Vogelbaum(CEO, co-founder)inRoss Levine(Director)Ramy Farid(Director)
BoardScott Platshon(Director)
Co-investorsInning One VenturesRA CapitalVivo Capital
Akouos is a precision genetic medicine company developing therapies for the inner ear to restore, improve, and preserve hearing.
BiotechHealthtechBrookline, US
Emmanuel Simons(Executive Officer, Director)william sewell(Founder)in
BoardEd Mathers(Director)inKush Parmar(Director)in
Co-investors5AM VenturesNew Enterprise Associates (NEA)RA CapitalSofinnova VenturesCowen Healthcare InvestmentsFidelity Investments+1 more
Kalaris Therapeutics is a clinical-stage biopharmaceutical company developing retinal disease treatments, specifically engineered biologics for wet AMD, diabetic eye disease, and retinal vein occlusion.
BiotechDigital HealthMedical DevicesBerkeley Heights, US
Napoleone Ferrara(Director & Co-Founder)Srinivas Akkaraju(Director & Co-founder)Mike Dybbs(Director & Co-founder)
A drug discovery company focused on medicinal chemistry and preclinical research across multiple therapeutic areas.
BiotechDigital HealthHealthtechMedical DevicesMental HealthIndianapolis, US
Jaswant Gidda(Executive Officer, Director)inJames Schulz(Executive Officer)Yvonne Lai(Executive Officer)
BoardNora Doherty(Director)Derek Small(Director)Anantha Shekhar(Director)
Arcus Biosciences develops combination cancer therapies, producing small molecules and antibodies designed to be combined and advanced from Phase 1 studies through commercialization.
Biotech
Juan Jaen(Founder)in
Co-investorsAisling CapitalDecheng CapitalDroia VenturesForesite CapitalSLVCSofinnova Ventures+2 more
Artiva Bio is a clinical-stage biotechnology company developing NK cell-based therapies for autoimmune diseases, designed to be manufactured at scale and delivered in community settings.
BiotechHealthtechMedical DevicesSan Diego, US
Jennifer Bush(Executive Officer)inThomas J. Farrell(Executive Officer)Fred Aslan(Executive Officer, Director)inJason Litten(Executive Officer)inEsther van den Boom(Executive Officer)Peter Flynn(Executive Officer)in
Co-investors5AM VenturesRA CapitalvenBio PartnersvenBio Global Strategic
BiotechRedwood City, US
William Robinson(Director)Lawrence Steinman(Director)Tito Serafini(Executive Officer, Director)
BoardBrian Atwood(Director)Franklin Berger(Director)
Co-investorsAisling CapitalEvolution VC PartnersMission Bay CapitalMission Biocapital
Attovia is a biotechnology company focused on drug development and clinical strategy, aiming to bring treatments to patients where none exist and create next-generation therapeutic options.
BiotechDigital Health
Zaneta Odrowaz(Founder)inTao Fu, MBA, M.S.(Founder, Chief Executive Officer, and President)Zaneta Odrowaz, Ph.D.(Chief Business Officer and Co-Founder)Petter Veiby(Chief Scientific Officer and Co-Founder)inHangjun Zhan, Ph.D.(Chief Technology Officer and Co-Founder)
Co-investorsFrazier Life SciencesIllumina VenturesNextech InvestSanofi VenturesVida VenturesGoldman Sachs+1 more
AVTTX is a clinical-stage company developing gene therapy treatments for retinal and ophthalmologic diseases.
BiotechDigital HealthHealthtechMedical Devices
George Montgomery(Executive Chairman)
Co-investorsEvolution VC PartnersHelios CapitalPlum Alley InvestmentsSand Hill AngelsSocii CapitalTribe Capital Firstlook
BridgeBio develops treatments for genetic conditions and cancers using a decentralized hub-and-spoke model, where autonomous teams focus on specific diseases or drug candidates while a central hub provides clinical, regulatory, and commercial support.
BiotechHealthtech
Co-investorsAisling CapitalAmzak HealthFrazier Life SciencesHEALTHCARE ROYALTY PARTNERSLongwood FundSequoia Capital
Cellares develops automated manufacturing systems and technology platforms to accelerate the production and commercialization of cell therapies.
Advanced ManufacturingBiotechMedical DevicesSouth San Francisco, US
Fabian Gerlinghaus(Co-Founder and Chief Executive Officer)inOmar Kurdi(Co-Founder and President)in
BoardJustin Butler(Director)inVictor Tong(Director)in
Co-investorsDecheng Capital8VCIntuitive VenturesKoch Disruptive TechnologiesBaillie GiffordBlackRock+4 more
Centessa is a biopharmaceutical company developing an Orexin Receptor 2 Agonist program aimed at treating sleep-wake, neurological, neurodegenerative, and neuropsychiatric disorders.
BiotechHealthtech
Co-investorsAdvent Life SciencesForesite CapitalMedicxiOberland CapitalScion Life SciencesVida Ventures+1 more
Cambridge, MA clinical-stage biotech developing engineered exosome therapeutics; IPO'd on NASDAQ in 2020, later restructured.
BiotechSeattle, US
Doug Williams(Executive Officer, Director)in
BoardNoubar Afeyan(Director)inSteven Gillis(Director)Eric Lander(Director)
Co-investorsARCH Venture PartnersFlagship Pioneering
Dewpoint Innovations develops functional nanostructured polymeric surfaces for atmospheric water capture, technology originating from PhD research at the University of Sydney.
CleantechClimate TechDeep TechNew Materials
Chiara Neto(Founder & Advisor (Chief Scientific Officer))inMing Chiu(Founder & CTO)in
Co-investorsPacific Channel3E Bioventures CapitalARCH Venture PartnersGeneral CatalystLeaps by BayerMaverick Ventures+2 more
Diagonal Therapeutics develops multi-specific clustering antibody therapeutics that bind multiple cell-surface receptors to activate or inhibit dysregulated signaling pathways underlying chronic diseases.
AI & Machine LearningBiotechHealthtechWatertown, US
Co-investorsAtlas VentureFrazier Life SciencesSanofi Ventures
ElevateBio is a contract development and manufacturing organization (CDMO) for advanced therapies, offering discovery, process development, analytics, manufacturing, and regulatory support for cell therapies, viral vectors, mRNA therapeutics, and gene editing.
BiotechDeep TechHealthtechWaltham, US
David Hallal(CEO)inMike Paglia(Chief Technology Officer)Ger Brophy(CEO)in
Co-investorsMPM BioImpactSamsara BioCapitalSoftBank Vision Fund
Flex Pharma provides accessible generic vasodilator medications, including PDE5 inhibitors, to U.S. patients at lower costs than brand-name alternatives.
BiotechDigital HealthHealthtechMedical Devices
Dr. Rod MacKinnon(Founder)
Co-investorsBessemer Venture PartnersLightstone VenturesLongwood Fund
Kezar Life Sciences is a clinical-stage biotechnology company developing small-molecule therapeutics for immune-mediated diseases and cancer.
BiotechSouth San Francisco, US
John F. Fowler(Executive Officer, Director)inChristopher J. Kirk(Executive Officer, Director)
BoardDr. Gerald Chan(Director)Dr. Jean-Pierre Sommadossi(Director)
Co-investorsBay City CapitalChiesi VenturesPappas CapitalSolasta VenturesQiming Venture Partners
BiotechNew York, US
Norbert Bischofberger, Ph.D.(Executive Officer, Director)Christopher Wilfong(Executive Officer)
BoardRebecka Belldegrun, M.D.(Director)Otello Stampacchia, Ph.D.(Director)David M. Tanen(Executive Officer, Director, Promoter)Arie S. Belldegrun, M.D.(Director)
Co-investorsGV (Google Ventures)Nextech InvestVida VenturesBlackRockCommodore CapitalInvus+1 more
Kumquat Biosciences is a biotech company developing small-molecule cancer therapeutics, combining drug discovery and clinical expertise to advance new oncology treatments.
BiotechSan Diego, US
Yi Liu(Executive Officer, Director)inYi Liu, Ph.D.(CEO)Lynn Yang(Director)
BoardCarl Gordon(Director)in
Co-investorsOrbiMedRoche Venture Fund
San Diego clinical-stage biopharma developing non-bile acid FXR agonists for liver and gastrointestinal diseases.
BiotechSan Diego, US
Ronald Evans(Director)Trisha Millican(Executive Officer)Ken Song(Executive Officer, Director)
BoardKristina Burow(Director)inRichard Heyman(Director)inAmir Nashat(Director)in
Co-investorsage1LAVLilly Asia VenturesNew Enterprise Associates (NEA)Vivo CapitalARCH Venture Partners+3 more
HealthtechWest Lafayette, US
Philip Low, Ph.D.(Director)Sunil Singhal, M.D.(Director)Isaac Barchas(Director)Clay B. Siegall, Ph.D.(Executive Officer, Director)Ronald Martell(Director)inFranklyn Prendergast, M.D., Ph.D.(Director)
Co-investorsArsenal Bridge VentureJanus Henderson InvestorsREDMILE
Developed next-generation depression pharmaceuticals; acquired in 2015 for $560M upfront plus milestones.
BiotechEvanston, US
Joseph R. Moskal(Executive Officer)inAmin Khan(Executive Officer)inJames Schulz(Executive Officer)Ronald M. Burch(Executive Officer)Norbert Riedel(Executive Officer, Director)Ashish Khanna(Executive Officer)
Co-investorsCota CapitalLatterell Venture PartnersSofinnova VenturesAdams Street Partners
Clinical-stage biotech developing neoantigen-targeted T cell receptor (TCR) therapies for cancer; acquired by AstraZeneca.
BiotechNew York, US
Carsten Linnemann, PhD(Executive Officer, Director, Promoter)Antonius N.M. Schumacher(Director)Fei Chen(Director)
BoardDavid M. Tanen(Director, Promoter)Helen Kim(Director)
Co-investorsJeito CapitalVida VenturesTPG
NiKang Therapeutics is a clinical-stage biotechnology company developing small molecule drugs for cancer, using structure-based drug design against targets such as HIF2α, CDK2, KRAS, and SHP2.
BiotechHealthtechWilmington, CN
Yan Lou(Founder)inZhenhai Gao(President, CEO, and Secretary)Hong (Kelsey) Chen(Chief Financial Officer)
BoardGary Yeung(Director)Ting Jia(Director)Roderick Wong(Director)
Co-investorsLAVLilly Asia VenturesRA CapitalSamsara BioCapitalThe Innovation SpaceLogos
Nurix Therapeutics develops protein degrader-based medicines using proprietary DEL-AI discovery technology to address cancer and autoimmune diseases.
AI & Machine LearningBiotechDeep TechMedical DevicesSan Francisco, US
Arthur T. Sands(Executive Officer, Director)inGwenn M. Hansen(Chief Scientific Officer)inTimothy Kutzkey(Executive Officer, Director)
BoardDavid Goeddel(Director)inMark Goldsmith(Director)
Co-investorsBain Capital Life SciencesForesite CapitalSofinnova VenturesThe Column Group
Omniox is an IND-stage biotherapeutics company developing its H-NOX platform into OMX oxygen delivery biologics that carry oxygen to hypoxic tissues where low oxygen levels drive disease.
BiotechMedical DevicesSan Francisco, US
Jonathan Winger(Executive Officer, Director)inStephen Cary(Executive Officer, Director)
BoardJeffrey S. Samberg(Director)Laurence Marton(Director)Mitchell Mutz(Director)John Wesley(Director)
Co-investorsWavemaker Three-Sixty Health
Paratus Sciences is a drug discovery company that uses AI-powered methods to identify first-in-class medicines by studying evolutionary traits, targeting serious diseases where current therapies are inadequate.
AI & Machine LearningBiotechDeep TechUnited States, US
Co-investorsARCH Venture PartnersClavystBioLeaps by Bayer
BiotechMenlo Park, US
Ervin Epstein(Executive Officer, Director)inJean Tang(Director)Mark de Souza(Executive Officer)
BoardKatrin Andreasson(Director)
Co-investorsAisling Capital
RubiusTX provides independent reviews and research on Australian online casinos, focusing on licensing, player protections, payouts, and responsible gambling standards.
ConsumerGaming
BiotechMedical Devices
Co-investorsARCH Venture Partners
BiotechDigital HealthMedical DevicesSeattle, US
Peter A. Thompson(Executive Officer, Director)in
Co-investorsPontifax Venture CapitalRA CapitalUS Venture PartnersNextech Invest
Tectonic is a clinical-stage biotechnology company developing therapeutic proteins and antibodies that target G-Protein Coupled Receptors (GPCRs) using a proprietary platform called GEODe™.
AI & Machine LearningBiotechMedical DevicesWatertown, US
Timothy A. Springer(Co-Founder)Andrew C. Kruse(Director)Alise Reicin(Executive Officer, Director)inDaniel Lochner(Executive Officer)Marc Schwabish(Executive Officer)inPeter McNamara(Executive Officer)in
Co-investorsVida VenturesAlly Bridge GroupClarusPolaris PartnersSoleus Capital
Terremoto Biosciences is a clinical-stage biotech developing precision therapies for oncology and genetic diseases using lysine-targeted covalent chemistry.
BiotechDeep TechSouth San Francisco, US
Grace Lu(Executive Officer)James Christensen(Executive Officer, Director)Charles Baum(Executive Officer, Director)in
BoardMichael Goller(Director)Reid Huber(Director)inPeter Thompson(Director)in
Co-investorsOrbiMedRA CapitalNovo HoldingsOsage University PartnersThird Rock Ventures
Co-investorsHorizons VenturesLux CapitalTCG CrossoverThe Column GroupInnovation Endeavors
Unity Biotechnology was a biotechnology company that is no longer operating.
BiotechBrisbane, US
Nathaniel E. David(Executive Officer, Director)inDan Marquess(Executive Officer)inKeith Leonard(Executive Officer, Director)inTamara Tompkins(Executive Officer)inBob Goeltz(Executive Officer)inJamie Dananberg(Executive Officer)in
Co-investorsage1ARCH Venture PartnersCycad Group LLCKhosla VenturesVenrock
Other
Tracked investments with no reachable website or further public details — typically companies that wound down, renamed, or were absorbed.
AmagmatxAviditynanoClementiapharmaKindredbioNabrivaNotchtxPrevail TherapeuticsPrevailtherapeuticsSyndaxvisit www.morphictx.comZapprx
Exits · 24
20 IPOs · 4 acquisitions · showing 20Aktis OncologyNASDAQ: AKTSAtara BiotherapeuticsNASDAQ: ATRAaTYR PHARMANASDAQ: ATYRCollegium PharmaceuticalNASDAQ: COLLCyclerion TherapeuticsNASDAQ: CYCNDenali TherapeuticsNASDAQ: DNLIEditas MedicineNASDAQ: EDITFreenomeNASDAQ: FRNMGossamer BioNASDAQ: GOSSIntellia TherapeuticsNASDAQ: NTLAKura OncologyNASDAQ: KURANeurogeneNASDAQ: NGNENuvation BioNYSE: NUVBORIC PharmaceuticalsNASDAQ: ORICRelayNASDAQ: RLAYScholar RockNASDAQ: SRRKScholar Rock Holding Corp, Inc.NASDAQ: SRRKShattuck LabsNASDAQ: STTKSagerxacq. by Supernus PharmaceuticalsSilverback Therapeuticsacq. by ARS Pharmaceuticals
Portfolio news
latest coverage across their companiesEditas Medicine · za.investing.com · Sep 9, 2026
Neurogene · stocktitan.net · Sep 8, 2026
Affinivax · cen.acs.org · Sep 8, 2026
Cyclerion Therapeutics · thestockobserver.com · Sep 3, 2026
Ajax · durhamradionews.com · Aug 22, 2026

Nuvation Bio · aromatherapynaturals.com · Aug 22, 2026
Relay · investing.com · Aug 20, 2026

Arcus Biosciences · pluang.com · Aug 19, 2026
IPO stake values · per SEC filings · 5
Value of this firm's stake in each portfolio company at its IPO price, from the prospectus principal-stockholder table.
| Company | Owned | IPO price | At IPO | Stake value |
|---|---|---|---|---|
| ORIC Pharmaceuticals | 7.4% | $23.00 | Nov 2020 | $60.8M |
| Aktis Oncology | 5.0% | $18.00 | Jan 2026 | $46.8M |
| Scholar Rock | 4.1% | $14.00 | May 2018 | $13.9M |
| Scholar Rock Holding Corp, Inc. | 4.1% | $14.00 | May 2018 | $13.9M |
| Kura Oncology | 10.0% | $8.00 | Nov 2015 | $11.6M |
Source: SEC S-1 / 424B prospectus filings. Stake value = shares beneficially owned × the initial public offering price, as disclosed — a market value at IPO, not a return multiple (the firm's original cost is not disclosed).
Frequently asked questions
- How many investments has EcoR1 Capital made?
- EcoR1 Capital has 76 tracked investments, 24 of which have exited, including 4 dated in the last 24 months.
- What stage does EcoR1 Capital invest at?
- EcoR1 Capital invests at the Seed, Series A, Series B, Series C, Late Stage stages.
- What sectors does EcoR1 Capital focus on?
- EcoR1 Capital focuses on Biotech, Medical Devices.
- Where is EcoR1 Capital located?
- EcoR1 Capital is headquartered in San Francisco, US.
- Who does EcoR1 Capital co-invest with?
- EcoR1 Capital most often shares deals with ARCH Venture Partners, Aisling Capital, RA Capital, among 95 tracked co-investors.
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