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    AngelBacked

    X4 Pharmaceuticals

    BiotechnologyCambridge, Massachusetts, United StatesPost-IPO Equity$760.6M total fundingwww.x4pharma.com
    Latest funding:$155.3M · Post-IPO Equity (October 24, 2025)

    Angel investors who backed X4 Pharmaceuticals

    33 investors in our database backed X4 Pharmaceuticals.

    David Bonita

    General Partner

    Chau Khuong

    Partner

    Peter Thompson

    Affiliate Professor, Neurosurgery

    Scotland Stevens

    General Partner

    Rishi Gupta

    Partner

    Geoffrey Hsu

    General Partner

    Carter Neild

    Managing Partner

    Carl Gordon

    Managing Partner

    Erez Chimovits

    Managing Director

    Mona Ashiya

    Private Equity Partner

    Anat Naschitz

    Managing Director

    Nissim Darvish

    Senior Managing Director

    Jonathan Wang

    Partner

    Matthew Rizzo

    Partner

    Sven Borho

    Managing Partner

    Jonathan Silverstein

    Managing Partner

    Bali Muralidhar

    Managing Partner, Chief Investment Officer

    Kurt von Emster

    Board Member

    andrew sinclair

    Managing Director

    Vin Miles

    Executive Director

    Genghis Lloyd-Harris

    Senior Advisor

    John Heard

    General Counsel

    Tim Haines

    Chairman and Managing Partner

    Partners Resolute
    Robert Garcia

    Founder and CFO

    Phillip Kerewich

    Vice President

    Fred Salchli

    CTO/Vice President

    Oscar Palmer

    Analyst

    Tim Hogaboom

    Analyst

    Trevor Davis

    Analyst

    Joshua Scheinfeld

    Founder and Managing Member

    Jonathan Cope

    Founder and Managing Member

    Richard Vogel

    Founder and President

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