X0306 4 2021-11-15 false 0001689813 Biohaven Pharmaceutical Holding Co Ltd. BHVN 0001027035 CHILDS JOHN W C/O BIOHAVEN PHARMACEUTICALS, INC. 215 CHURCH STREET NEW HAVEN CT 06510 true false false false Common Shares 2021-11-15 4 M false 212500.00 0.61 A 2763301.00 D Common Shares 2021-11-15 4 M false 150000.00 5.60 A 2913301.00 D Common Shares 2021-11-15 4 M false 37700.00 9.29 A 2951001.00 D Common Shares 2021-11-15 4 M false 18000.00 28.76 A 2969001.00 D Common Shares 2021-11-15 4 M false 18000.00 61.76 A 2987001.00 D Common Shares 2021-11-15 4 M false 20000.00 10.82 A 3007001.00 D Common Shares 2021-11-15 4 M false 18000.00 47.10 A 3025001.00 D Common Shares 10000.00 I By John W Childs 2013 Revocable Trust Stock Option (Right to Buy) 0.61 2021-11-15 4 M false 212500.00 0.00 D 2024-11-25 Common Shares 212500.00 0.00 D Stock Option (Right to Buy) 5.60 2021-11-15 4 M false 150000.00 0.00 D 2025-10-22 Common Shares 150000.00 0.00 D Stock Option (Right to Buy) 9.29 2021-11-15 4 M false 37700.00 0.00 D 2026-12-14 Common Shares 37700.00 0.00 D Stock Option (Right to Buy) 28.76 2021-11-15 4 M false 18000.00 0.00 D 2019-05-01 2028-04-30 Common Shares 18000.00 0.00 D Stock Option (Right to Buy) 61.76 2021-11-15 4 M false 18000.00 0.00 D 2020-04-30 2029-05-20 Common Shares 18000.00 0.00 D Stock Option (Right to Buy) 10.82 2021-11-15 4 M false 20000.00 0.00 D 2027-04-05 Common Shares 20000.00 0.00 D Stock Option (Right to Buy) 47.10 2021-11-15 4 M false 18000.00 0.00 D 2021-04-30 2030-04-29 Common Shares 18000.00 0.00 D The shares underlying this option vested as to 25% of the shares on November 26, 2014, and the remainder vested in 3 equal installments on the first, second and third anniversaries of the grant date. The shares underlying this option vested as to 25% of the shares on October 23, 2015, and the remainder vested in 3 equal installments on the first, second and third anniversaries of the grant date. The shares underlying this option vested as to 25% of the shares on December 15, 2016, and the remainder vested in 3 equal installments on the first, second and third anniversaries of the grant date. The shares underlying this option vested as to 25% of the shares on April 6, 2017, and the remainder vested in 3 equal installments on the first, second and third anniversaries of the grant date. /s/ Jim Engelhart, Attorney-in-Fact 2021-11-17