X0306 4 2020-01-31 false 0001689813 Biohaven Pharmaceutical Holding Co Ltd. BHVN 0001448914 Heffernan Michael Thomas C/O BIOHAVEN PHARMACEUTICALS, INC. 215 CHURCH STREET NEW HAVEN CT 06510 true false false false Stock Option (right to buy) 48.49 2020-01-31 4 A false 36000.00 0.00 A 2030-01-31 Common Shares 36000.00 36000.00 D This option grant was made pursuant to the issuer's non-employee director compensation policy. The common shares underlying this option vest in three equal installments on January 31, 2021, 2022 and 2023, subject to the reporting person's continuous service with the issuer at each vesting date. /s/ Jim Engelhart, Attorney-in-Fact 2020-01-31