Antoni Ribas

Director/Board Member at ARCUS BIOSCIENCES, INC.

Net worth: 2 M $ as of 30/06/2026

60 year

79 connections

Health Technology

Consumer Services

Commercial Services

Profile

Antoni Ribas is the founder of Tango Therapeutics Sub, Inc. founded in 2017, Tango Therapeutics, Inc. founded in 2017, Kalthera, Inc. founded in 2021, and Lutris Pharma Ltd. founded in 2015 where Dr. Ribas holds the title of Chairman since 2022.
Dr. Ribas was also the founder of Kite Pharma, Inc.,Flexus Biosciences, Inc.,PACT Pharma, Inc...
Dr. Ribas previously served as Director-Tumor Immunology Program at Jonsson Comprehensive Cancer Center, Independent Director at Arcus Biosciences, Inc. since 2019, Professor-Medicine, Surgery & Molecular at the University of California, Los Angeles, Venture Partner at Ysios Capital Partners SGEIC SA since 2020, and Professor at the University of California.
Former positions include Director at The Parker Institute For Cancer Immunotherapy and President-Elect at the American Association for Cancer Research.
Education includes doctorates conferred in 1990 and 1997 from the University of Barcelona.

Known holdings in public companies

Company	Date	Number of shares	Valuation	Valuation date
ARCUS BIOSCIENCES, INC. 0.04%	11/06/2026	52,853 ( 0.04% )	2 M $	30/06/2026

Antoni Ribas active positions

Companies	Position	Start
ARCUS BIOSCIENCES, INC.	Director/Board Member	28/10/2019
University of California University of California Other Consumer ServicesConsumer Services Functions as a College/University	Corporate Officer/Principal	-
Jonsson Comprehensive Cancer Center Jonsson Comprehensive Cancer Center Medical/Nursing ServicesHealth Services Part of University of California, Jonsson Comprehensive Cancer Center is a multidisciplinary cancer center that integrates basic, translational, and clinical research to advance personalized cancer care across all stages of treatment. The company is based in Los Angeles, CA. The center offers comprehensive services including prevention, early detection, precision diagnostics, innovative therapies, survivorship support, and access to clinical trials. It specializes in a wide range of cancers such as breast, prostate, lung, colorectal, kidney, and sarcoma, and provides targeted treatments and immunotherapies. Research is organized into interdisciplinary programs focusing on cancer stem cell biology, immunotherapy, molecular imaging, and gene regulation. The center manages clinical trial infrastructure, supports education and training for trainees and faculty, and conducts cancer prevention and control research with community outreach. Philanthropy supports research, clinical trials, and patient services, including integrative oncology programs. The center provides language and disability access services and fosters a patient-centered environment.	Corporate Officer/Principal	-
University of California, Los Angeles University of California, Los Angeles Other Consumer ServicesConsumer Services Functions as a College/University	Corporate Officer/Principal	-
Lutris Pharma Ltd. Lutris Pharma Ltd. Pharmaceuticals: MajorHealth Technology Operates as a clinical stage biopharmaceutical company that improves anti cancer therapy effectiveness	Founder	14/12/2015
Ysios Capital Partners SGEIC SA Ysios Capital Partners SGEIC SA Investment ManagersFinance Ysios Capital invests in companies located across the globe. The firm targets companies operating in the fields of the biotechnology sector. It provides financing for early and growth stage capital requirements.	Private Equity Investor	01/06/2020

All active positions of Antoni Ribas

Former positions of Antoni Ribas

Companies	Position	End
Kalthera, Inc. Kalthera, Inc. Miscellaneous Commercial ServicesCommercial Services Provides progressive clinical trials services	Founder	02/01/2021
The Parker Institute For Cancer Immunotherapy The Parker Institute For Cancer Immunotherapy Miscellaneous Commercial ServicesCommercial Services Operates cancer research	Director/Board Member	-
TANGO THERAPEUTICS, INC.	Founder	-
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Linked companies

Private companies	15
University of California, Los Angeles University of California, Los Angeles Other Consumer ServicesConsumer Services Functions as a College/University	Consumer Services
University of Barcelona University of Barcelona Other Consumer ServicesConsumer Services Functions as a College/University	Consumer Services
American Association for Cancer Research American Association for Cancer Research Miscellaneous Commercial ServicesCommercial Services Engages in research, education, communication and collaboration to prevent and cure cancer	Commercial Services
Ysios Capital Partners SGEIC SA Ysios Capital Partners SGEIC SA Investment ManagersFinance Ysios Capital invests in companies located across the globe. The firm targets companies operating in the fields of the biotechnology sector. It provides financing for early and growth stage capital requirements.	Finance
Kite Pharma, Inc. Kite Pharma, Inc. Pharmaceuticals: MajorHealth Technology Operates as a clinical stage biotechnology company which engages in the development of novel cancer immunotherapeutic products	Health Technology
Jonsson Comprehensive Cancer Center Jonsson Comprehensive Cancer Center Medical/Nursing ServicesHealth Services Part of University of California, Jonsson Comprehensive Cancer Center is a multidisciplinary cancer center that integrates basic, translational, and clinical research to advance personalized cancer care across all stages of treatment. The company is based in Los Angeles, CA. The center offers comprehensive services including prevention, early detection, precision diagnostics, innovative therapies, survivorship support, and access to clinical trials. It specializes in a wide range of cancers such as breast, prostate, lung, colorectal, kidney, and sarcoma, and provides targeted treatments and immunotherapies. Research is organized into interdisciplinary programs focusing on cancer stem cell biology, immunotherapy, molecular imaging, and gene regulation. The center manages clinical trial infrastructure, supports education and training for trainees and faculty, and conducts cancer prevention and control research with community outreach. Philanthropy supports research, clinical trials, and patient services, including integrative oncology programs. The center provides language and disability access services and fosters a patient-centered environment.	Health Services
University of California University of California Other Consumer ServicesConsumer Services Functions as a College/University	Consumer Services
Flexus Biosciences, Inc. Flexus Biosciences, Inc. BiotechnologyHealth Technology Provides cancer therapeutics through innovative apps	Health Technology
Arcus Biosciences, Inc. Arcus Biosciences, Inc. BiotechnologyHealth Technology Develops and commercializes novel therapies for the treatment of lung & gastrointestinal cancers	Health Technology
Tango Therapeutics Sub, Inc. Tango Therapeutics Sub, Inc. BiotechnologyHealth Technology Develops transformational new drugs for cancer patients	Health Technology
The Parker Institute For Cancer Immunotherapy The Parker Institute For Cancer Immunotherapy Miscellaneous Commercial ServicesCommercial Services Operates cancer research	Commercial Services
PACT Pharma, Inc. PACT Pharma, Inc. Pharmaceuticals: MajorHealth Technology Develops pharmaceutical products	Health Technology
Lutris Pharma Ltd. Lutris Pharma Ltd. Pharmaceuticals: MajorHealth Technology Operates as a clinical stage biopharmaceutical company that improves anti cancer therapy effectiveness	Health Technology
Tango Therapeutics, Inc. Tango Therapeutics, Inc. BiotechnologyHealth Technology Operates as biotechnology company that engages in discovering and delivering precision cancer medicines	Health Technology
Kalthera, Inc. Kalthera, Inc. Miscellaneous Commercial ServicesCommercial Services Provides progressive clinical trials services	Commercial Services