X0306 4 2017-07-03 0 0001621227 Adaptimmune Therapeutics PLC ADAP 0001689112 Kerr Giles Francis Bertram THE OLD VICARAGE, LOWER GREEN, TOWERSEY, THAME OXFORDSHIRE X0 OX9 3QW UNITED KINGDOM 1 0 0 0 Option to purchase Ordinary Shares 0.75 2017-07-03 4 A 0 144000 0 A 2018-07-03 2027-07-03 Ordinary Shares 144000 144000 D The exercise price was converted from GBP0.58 based on the closing midpoint exchange rate for the U.S. dollar on the trading day prior to the date of grant listed in the Financial Times. The actual exercise price will be the pounds sterling amount. /s/ Giles Kerr 2017-07-03