Related parties	3 Months Ended
Mar. 31, 2020
Related parties
Related parties	12. Related parties Atlas Venture Life Science Advisors, LLC A partner of Atlas Venture Life Science Advisors, LLC (“Atlas”), a significant investor in the Company, has served on the Company’s board of directors since 2018. In August 2018, the Company entered into a use and occupancy agreement for office space with Atlas in Cambridge, Massachusetts (see Note 11). The parties terminated the agreement in September 2019. The Company did not incur any expenses from Atlas during the three months ended March 31, 2020. The Company incurred $5 from Atlas under the use and occupancy agreement during the three months ended March 31, 2019. As of March 31, 2020 and December 31, 2019, the Company did not owe any amounts to Atlas.

Related parties

3 Months Ended

Mar. 31, 2020

12. Related parties

Atlas Venture Life Science Advisors, LLC

A partner of Atlas Venture Life Science Advisors, LLC (“Atlas”), a significant investor in the Company, has served on the Company’s board of directors since 2018. In August 2018, the Company entered into a use and occupancy agreement for office space with Atlas in Cambridge, Massachusetts (see Note 11). The parties terminated the agreement in September 2019. The Company did not incur any expenses from Atlas during the three months ended March 31, 2020. The Company incurred $5 from Atlas under the use and occupancy agreement during the three months ended March 31, 2019. As of March 31, 2020 and December 31, 2019, the Company did not owe any amounts to Atlas.