X0306 4 2018-04-10 0 0001689813 Biohaven Pharmaceutical Holding Co Ltd. BHVN 0001704483 Berman Robert C/O BIOHAVEN PHARMACEUTICALS, INC. 234 CHURCH STREET NEW HAVEN CT 06510 0 1 0 0 Chief Medical Officer Common Shares 2018-04-10 4 S 0 4260 24.19 D 585740 I By Berman Family Trust 2013 Common Shares 2018-04-10 4 S 0 2720 25.39 D 583020 I By Berman Family Trust 2013 Common Shares 2018-04-10 4 S 0 20 25.81 D 583000 I By Berman Family Trust 2013 Common Shares 2018-04-10 4 S 0 17040 24.19 D 386960 I By Berman Marital Trust 2013 Common Shares 2018-04-10 4 S 0 10880 25.39 D 376080 I By Berman Marital Trust 2013 Common Shares 2018-04-10 4 S 0 80 25.81 D 376000 I By Berman Marital Trust 2013 Common Shares 50 I Owned by spouse These sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $23.78 - $24.72, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (2) to this Form 4. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $24.79 - $25.77, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (3) to this Form 4. /s/ Darren DeStefano, Attorney-in-fact 2018-04-12