JN

Jack Nielsen

Managing Partner at Vivo Capital

Palo Alto, California

Overview 

Jack Nielsen is the Managing Partner at Vivo Capital, with expertise in biotechnology, pharmaceuticals, venture capital, and clinical development. He has served on the boards of multiple successful companies and has made strategic investments in various stages and sectors, such as Clasp Therapeutics, IO Biotech, ALX Oncology, and Reata Pharmaceuticals. Nielsen's career highlights include leading Vivo Capital as Managing Partner and serving on the boards of companies like Ocelot Bio, Instil Bio, and ALX Oncology, demonstrating his strong leadership in the biotechnology and pharmaceutical industry.

Work Experience 

  • Managing Partner

    2017 - Current

  • Consultant

    2017 - 2017

Vivo is a global investment firm focused on healthcare with approximately $5.8 billion in AUM

  • Board Member

    2021

Ocelot Bio brings new treatment options to patients with severe liver disease.

Raised $39,000,000.00 from Venrock, RA Capital Management and Vivo Capital.

  • Board Member

    2021

    IO Biotech went public on Nasdaq in November 2021 under Ticker IOBT

  • Board Member

    2020

    Instil Bio went public on Nasdaq in March 2021 under Ticker TIL

Instil Bio is a biotechnology company that develops cell therapies for solid tumor cures.

Raised $200,200,000.00 from HBM Healthcare Investments.

  • Board Member

    2020

    ALX Oncology went public on Nasdaq in July 2020 under Ticker ALXO

ALX Oncology is a preclinical stage biotechnology company developing innovative immuno-oncology therapies for cancer.

Raised $329,200,000.00 from Silicon Valley Bank and Oxford Finance LLC.

  • Chairman / Lead Director

    2018

    Aligos went public on Nasdaq in October 2020 under Ticker ALGS

Aligos Therapeutics is discovering and developing new classes of molecules that interact directly with disease-causing modalities.

Raised $400,600,000.00 from Deep Track Capital, EcoR1 Capital, Armistice Capital, Lawrence Blatt and Roche Venture Fund.

  • Board Member

    2017

    Harmony Biosciences went public on NASDAQ August 2020 under ticker HRMY

  • Lead Director - Board Member

    2006 - 2022

    Reata went public on Nasdaq in May 2016 under Ticker RETA. Acquired by Biogen in 2023 for $7.3 BUSD

Reata Pharmaceuticals is a biopharmaceutical company that develops drugs for cancer, inflammation, and neurodegenerative diseases.

Raised $2,006,204,729.00 from Blackstone Life Sciences.

  • Board Member

    2019 - 2022

    LumiThera acquired the Maculogix in 2022

  • Board Observer

    2018 - 2020

    Passage Bio raised 216 MUSD in an IPO on NASDAQ under ticker PASG

Passage Bio is a fully integrated gene therapy company developing therapies for the treatment of monogenic central nervous system diseases.

Raised $379,500,000.00 from Lilly Asia Ventures, Highline Capital Management, Sphera Funds Management, Versant Ventures, New Leaf Venture Partners, Boxer Capital, Logos Capital, Access Biotechnology, OrbiMed and Frazier Healthcare Partners.

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