X0306 4 2021-02-22 0 0001351288 GW PHARMACEUTICALS PLC GWPH 0001584516 Secor Alicia SOVEREIGN HOUSE, VISION PARK, HISTON CAMBRIDGE X0 CB24 9BZ UNITED KINGDOM 1 0 0 0 Share Options 0.0014 2021-02-22 4 A 0 22464 0.00 A Ordinary Shares 22464 22464 D Granted pursuant to the Issuer's Long-Term Incentive Plan. Inadvertently late filing. Converted from British Pounds Sterling to U.S. Dollars using currency ratio of 1.00 British Pound Sterling = 1.41 U.S. Dollars as of February 22, 2021. These share options will vest in three equal annual installments beginning on February 22, 2022 and be automatically exercised upon vesting. Subject to accelerated vesting in connection with the closing of the transactions contemplated by the Transaction Agreement, dated as of February 3, 2021, by and among Jazz Pharmaceuticals UK Holdings Limited, Jazz Pharmaceuticals Public Limited Company and GW Pharmaceuticals plc. /s/ Alicia Secor 2021-02-25