Sarah Larsen

Sarah Larson is a Partner and the Chief Human Resources Officer of Third Rock Ventures. Sarah joined Third Rock in 2017, bringing over 20 years of experience in human resources and leadership development, as well as the building of strong corporate cultures. Sarah is responsible for human resources at the firm and also provides guidance and counsel to the firm’s portfolio companies as they are building their organizational capabilities, focusing on areas of human capital, leadership development, and culture creation. She has played key roles in launching and building some of our portfolio companies, including:

  • Interim chief human resources officer of Cedilla Therapeutics
  • Senior vice president, human resources at Foundation Medicine

Previously, Sarah led the global human resources function at CombinatoRx (acquired by Horizon Discovery Group) and worked for several years as a recruiter and account manager at Cambridge Search, a search firm specializing in recruitment within the life sciences industry. Sarah holds a BA in Communications from Rivier College.

Sarah has a passion for refurbishing and rebuilding homes. On any weekend, you might find her ripping down walls or on scaffolding putting up siding. One of her most prized possessions is her tape measure, with fractions.