William R. serves as a General Partner at Spark Capital since 2015 and has taken on several roles in various companies since then. Notable positions include serving as a Series B Investor and Board Director at Abridge and Baseten, as well as a Series C Investor and Board Director at Headway. Other investments include Series C stakes in Scale AI, Discord, and Mercury, alongside a Series D investment in Benchling and a Series B investment in Formation Bio. William R. holds a Bachelor of Arts degree from Amherst College.
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