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FibroGen, Inc. 401(k) Plan
 12 Months Ended
Dec. 31, 2020
Compensation And Retirement Disclosure [Abstract]  
FibroGen, Inc. 401(k) Plan

12.

FibroGen, Inc. 401(k) Plan

Substantially all of the Company’s full-time U.S.-based employees are eligible to make contributions to the Company’s 401(k) Plan. Under this plan, participating employees may defer up to 60% of their pretax salary during the year, but not more than statutory limits. The Company may elect to match employee contributions. Matching contributions of $3.2 million, $3.0 million and $2.9 million were made during years ended December 31, 2020, 2019 and 2018, respectively.