Benefit plans	3 Months Ended
Mar. 31, 2020
Benefit plans
Benefit plans	14. Benefit plans The Company established a defined‑contribution savings plan under Section 401(k) of the Code (the “401(k) Plan”). The 401(k) Plan covers all U.S. employees and allows participants to defer a portion of their annual compensation on a pre‑tax basis. Matching contributions to the 401(k) Plan may be made at the discretion of the Company’s board of directors. During each of the three months ended March 31, 2020 and 2019, the Company made contributions totaling $0.1 million to the 401(k) Plan. The Company provides a pension contribution plan for its employees in the United Kingdom, pursuant to which the Company may match employees’ contributions each year (“U.K Plan”). During each of the three months ended March 31, 2020 and 2019, the Company made contributions totaling $0.1 million to the U.K. Plan.

14. Benefit plans

The Company established a defined‑contribution savings plan under Section 401(k) of the Code (the “401(k) Plan”). The 401(k) Plan covers all U.S. employees and allows participants to defer a portion of their annual compensation on a pre‑tax basis. Matching contributions to the 401(k) Plan may be made at the discretion of the Company’s board of directors. During each of the three months ended March 31, 2020 and 2019, the Company made contributions totaling $0.1 million to the 401(k) Plan.

The Company provides a pension contribution plan for its employees in the United Kingdom, pursuant to which the Company may match employees’ contributions each year (“U.K Plan”). During each of the three months ended March 31, 2020 and 2019, the Company made contributions totaling $0.1 million to the U.K. Plan.