{"entity":{"type":"insider","cik":"0001291937","url":"/insider/0001291937","json_url":"/insider/0001291937.json","name":"Bertrand William C JR","name_source":"as-filed","also_issuer":false,"cross_url":null},"coverage_statement":{"n_transactions":26,"n_filings":19,"first":"2015-12-21","last":"2025-08-29","span_basis":"filed_date"},"name_variants":[{"name":"Bertrand William C JR","source":"filing","n_filings":19,"first_seen":"2015-12-21","last_seen":"2025-08-29"}],"transactions":[{"id":4986852,"accession":"0001104659-25-085820","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001104659-25-085820","line_url":"/filing/0001104659-25-085820#line-1","is_derivative":false,"issuer_cik":"0001291937","issuer_name":"Adaptimmune Therapeutics PLC","issuer_ticker":"ADAP","issuer_name_source":null,"issuer_url":"/issuer/0001291937","owner_cik":"0001291937","owner_name":"Bertrand William C JR","owner_display_name":"Bertrand William C JR","owner_url":"/insider/0001291937","role":"Officer (Chief Operating Officer)","role_mark":"O","role_mark_label":"Officer (Chief Operating Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Operating Officer","security_title":"Ordinary Shares with a nominal value of GBP0.001 per share","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":207000.0,"shares_display":"207,000","price_per_share":0.0101,"price_display":"0.01","price_state":"stated","total_value":2090.7,"total_display":"2,090.70","total_whole":"2,091","shares_owned_after":986352.0,"shares_owned_after_display":"986,352","ownership_form":"D","is_10b5_1":null,"transaction_date":"2025-08-28","filed_date":"2025-08-29","scope":"insider"},{"id":4421679,"accession":"0001104659-25-004606","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001104659-25-004606","line_url":"/filing/0001104659-25-004606#line-1","is_derivative":false,"issuer_cik":"0001291937","issuer_name":"Adaptimmune Therapeutics PLC","issuer_ticker":"ADAP","issuer_name_source":null,"issuer_url":"/issuer/0001291937","owner_cik":"0001291937","owner_name":"Bertrand William C JR","owner_display_name":"Bertrand William C JR","owner_url":"/insider/0001291937","role":"Officer (Chief Operating Officer)","role_mark":"O","role_mark_label":"Officer (Chief Operating Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Operating Officer","security_title":"American Depositary Shares representing Ordinary Shares","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":5584.0,"shares_display":"5,584","price_per_share":0.5808,"price_display":"0.58","price_state":"stated","total_value":3243.1872,"total_display":"3,243.19","total_whole":"3,243","shares_owned_after":7510.0,"shares_owned_after_display":"7,510","ownership_form":"D","is_10b5_1":null,"transaction_date":"2025-01-17","filed_date":"2025-01-17","scope":"insider"},{"id":4509499,"accession":"0001104659-25-003765","txn_seq":3,"anchor":"line-3","filing_url":"/filing/0001104659-25-003765","line_url":"/filing/0001104659-25-003765#line-3","is_derivative":false,"issuer_cik":"0001291937","issuer_name":"Adaptimmune Therapeutics PLC","issuer_ticker":"ADAP","issuer_name_source":null,"issuer_url":"/issuer/0001291937","owner_cik":"0001291937","owner_name":"Bertrand William C JR","owner_display_name":"Bertrand William C JR","owner_url":"/insider/0001291937","role":"Officer (Chief Operating Officer)","role_mark":"O","role_mark_label":"Officer (Chief Operating Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Operating Officer","security_title":"American Depositary Shares representing Ordinary Shares","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":9803.0,"shares_display":"9,803","price_per_share":0.5748,"price_display":"0.57","price_state":"stated","total_value":5634.7644,"total_display":"5,634.76","total_whole":"5,635","shares_owned_after":13756.0,"shares_owned_after_display":"13,756","ownership_form":"D","is_10b5_1":null,"transaction_date":"2025-01-15","filed_date":"2025-01-15","scope":"insider"},{"id":4509495,"accession":"0001104659-25-003765","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001104659-25-003765","line_url":"/filing/0001104659-25-003765","is_derivative":false,"issuer_cik":"0001291937","issuer_name":"Adaptimmune Therapeutics PLC","issuer_ticker":"ADAP","issuer_name_source":null,"issuer_url":"/issuer/0001291937","owner_cik":"0001291937","owner_name":"Bertrand William C JR","owner_display_name":"Bertrand William C JR","owner_url":"/insider/0001291937","role":"Officer (Chief Operating Officer)","role_mark":"O","role_mark_label":"Officer (Chief Operating Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Operating Officer","security_title":"American Depositary Shares representing Ordinary Shares","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":9739.0,"shares_display":"9,739","price_per_share":0.5879,"price_display":"0.59","price_state":"stated","total_value":5725.5581,"total_display":"5,725.56","total_whole":"5,726","shares_owned_after":7623.0,"shares_owned_after_display":"7,623","ownership_form":"D","is_10b5_1":null,"transaction_date":"2025-01-13","filed_date":"2025-01-15","scope":"insider","n_lines":2},{"id":2085479,"accession":"0001104659-24-004560","txn_seq":3,"anchor":"line-3","filing_url":"/filing/0001104659-24-004560","line_url":"/filing/0001104659-24-004560","is_derivative":false,"issuer_cik":"0001291937","issuer_name":"Adaptimmune Therapeutics PLC","issuer_ticker":"ADAP","issuer_name_source":null,"issuer_url":"/issuer/0001291937","owner_cik":"0001291937","owner_name":"Bertrand William C JR","owner_display_name":"Bertrand William C JR","owner_url":"/insider/0001291937","role":"Officer (Chief Operating Officer)","role_mark":"O","role_mark_label":"Officer (Chief Operating Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Operating Officer","security_title":"American Depositary Shares representing Ordinary Shares","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":18908.0,"shares_display":"18,908","price_per_share":0.673,"price_display":"0.67","price_state":"stated","total_value":12725.084,"total_display":"12,725.08","total_whole":"12,725","shares_owned_after":20201.0,"shares_owned_after_display":"20,201","ownership_form":"D","is_10b5_1":null,"transaction_date":"2024-01-17","filed_date":"2024-01-17","scope":"insider","n_lines":2},{"id":2085475,"accession":"0001104659-24-004560","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001104659-24-004560","line_url":"/filing/0001104659-24-004560#line-1","is_derivative":false,"issuer_cik":"0001291937","issuer_name":"Adaptimmune Therapeutics PLC","issuer_ticker":"ADAP","issuer_name_source":null,"issuer_url":"/issuer/0001291937","owner_cik":"0001291937","owner_name":"Bertrand William C JR","owner_display_name":"Bertrand William C JR","owner_url":"/insider/0001291937","role":"Officer (Chief Operating Officer)","role_mark":"O","role_mark_label":"Officer (Chief Operating Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Operating Officer","security_title":"American Depositary Shares representing Ordinary Shares","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":4681.0,"shares_display":"4,681","price_per_share":0.79,"price_display":"0.79","price_state":"stated","total_value":3697.99,"total_display":"3,697.99","total_whole":"3,698","shares_owned_after":7023.0,"shares_owned_after_display":"7,023","ownership_form":"D","is_10b5_1":null,"transaction_date":"2024-01-16","filed_date":"2024-01-17","scope":"insider"},{"id":2184028,"accession":"0001104659-24-003745","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001104659-24-003745","line_url":"/filing/0001104659-24-003745#line-2","is_derivative":false,"issuer_cik":"0001291937","issuer_name":"Adaptimmune Therapeutics PLC","issuer_ticker":"ADAP","issuer_name_source":null,"issuer_url":"/issuer/0001291937","owner_cik":"0001291937","owner_name":"Bertrand William C JR","owner_display_name":"Bertrand William C JR","owner_url":"/insider/0001291937","role":"Officer (Chief Operating Officer)","role_mark":"O","role_mark_label":"Officer (Chief Operating Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Operating Officer","security_title":"American Depositary Shares representing Ordinary Shares","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":5220.0,"shares_display":"5,220","price_per_share":0.8541,"price_display":"0.85","price_state":"stated","total_value":4458.402,"total_display":"4,458.40","total_whole":"4,458","shares_owned_after":7874.0,"shares_owned_after_display":"7,874","ownership_form":"D","is_10b5_1":null,"transaction_date":"2024-01-12","filed_date":"2024-01-12","scope":"insider"},{"id":2184024,"accession":"0001104659-24-003745","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001104659-24-003745","line_url":"/filing/0001104659-24-003745#line-1","is_derivative":false,"issuer_cik":"0001291937","issuer_name":"Adaptimmune Therapeutics PLC","issuer_ticker":"ADAP","issuer_name_source":null,"issuer_url":"/issuer/0001291937","owner_cik":"0001291937","owner_name":"Bertrand William C JR","owner_display_name":"Bertrand William C JR","owner_url":"/insider/0001291937","role":"Officer (Chief Operating Officer)","role_mark":"O","role_mark_label":"Officer (Chief Operating Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Operating Officer","security_title":"American Depositary Shares representing Ordinary Shares","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":4009.0,"shares_display":"4,009","price_per_share":0.8367,"price_display":"0.84","price_state":"stated","total_value":3354.3303,"total_display":"3,354.33","total_whole":"3,354","shares_owned_after":6104.0,"shares_owned_after_display":"6,104","ownership_form":"D","is_10b5_1":null,"transaction_date":"2024-01-11","filed_date":"2024-01-12","scope":"insider"},{"id":8118396,"accession":"0001104659-23-004381","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001104659-23-004381","line_url":"/filing/0001104659-23-004381#line-1","is_derivative":false,"issuer_cik":"0001291937","issuer_name":"Adaptimmune Therapeutics PLC","issuer_ticker":"ADAP","issuer_name_source":null,"issuer_url":"/issuer/0001291937","owner_cik":"0001291937","owner_name":"Bertrand William C JR","owner_display_name":"Bertrand William C JR","owner_url":"/insider/0001291937","role":"Officer (Chief Operating Officer)","role_mark":"O","role_mark_label":"Officer (Chief Operating Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Operating Officer","security_title":"American Depositary Shares representing Ordinary Shares","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":4440.0,"shares_display":"4,440","price_per_share":1.858,"price_display":"1.86","price_state":"stated","total_value":8249.52,"total_display":"8,249.52","total_whole":"8,250","shares_owned_after":7264.0,"shares_owned_after_display":"7,264","ownership_form":"D","is_10b5_1":null,"transaction_date":"2023-01-17","filed_date":"2023-01-17","scope":"insider"},{"id":8521470,"accession":"0001104659-23-003539","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001104659-23-003539","line_url":"/filing/0001104659-23-003539#line-2","is_derivative":false,"issuer_cik":"0001291937","issuer_name":"Adaptimmune Therapeutics PLC","issuer_ticker":"ADAP","issuer_name_source":null,"issuer_url":"/issuer/0001291937","owner_cik":"0001291937","owner_name":"Bertrand William C JR","owner_display_name":"Bertrand William C JR","owner_url":"/insider/0001291937","role":"Officer (Chief Operating Officer)","role_mark":"O","role_mark_label":"Officer (Chief Operating Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Operating Officer","security_title":"American Depositary Shares representing Ordinary Shares","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":4973.0,"shares_display":"4,973","price_per_share":1.706,"price_display":"1.71","price_state":"stated","total_value":8483.938,"total_display":"8,483.94","total_whole":"8,484","shares_owned_after":8121.0,"shares_owned_after_display":"8,121","ownership_form":"D","is_10b5_1":null,"transaction_date":"2023-01-12","filed_date":"2023-01-12","scope":"insider"},{"id":8521465,"accession":"0001104659-23-003539","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001104659-23-003539","line_url":"/filing/0001104659-23-003539#line-1","is_derivative":false,"issuer_cik":"0001291937","issuer_name":"Adaptimmune Therapeutics PLC","issuer_ticker":"ADAP","issuer_name_source":null,"issuer_url":"/issuer/0001291937","owner_cik":"0001291937","owner_name":"Bertrand William C JR","owner_display_name":"Bertrand William C JR","owner_url":"/insider/0001291937","role":"Officer (Chief Operating Officer)","role_mark":"O","role_mark_label":"Officer (Chief Operating Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Operating Officer","security_title":"American Depositary Shares representing Ordinary Shares","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":3843.0,"shares_display":"3,843","price_per_share":1.7468,"price_display":"1.75","price_state":"stated","total_value":6712.9524,"total_display":"6,712.95","total_whole":"6,713","shares_owned_after":6270.0,"shares_owned_after_display":"6,270","ownership_form":"D","is_10b5_1":null,"transaction_date":"2023-01-11","filed_date":"2023-01-12","scope":"insider"},{"id":8051905,"accession":"0001104659-23-001092","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001104659-23-001092","line_url":"/filing/0001104659-23-001092#line-1","is_derivative":false,"issuer_cik":"0001291937","issuer_name":"Adaptimmune Therapeutics PLC","issuer_ticker":"ADAP","issuer_name_source":null,"issuer_url":"/issuer/0001291937","owner_cik":"0001291937","owner_name":"Bertrand William C JR","owner_display_name":"Bertrand William C JR","owner_url":"/insider/0001291937","role":"Officer (Chief Operating Officer)","role_mark":"O","role_mark_label":"Officer (Chief Operating Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Operating Officer","security_title":"American Depositary Shares representing Ordinary Shares","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":3584.0,"shares_display":"3,584","price_per_share":1.694,"price_display":"1.69","price_state":"stated","total_value":6071.296,"total_display":"6,071.30","total_whole":"6,071","shares_owned_after":5781.0,"shares_owned_after_display":"5,781","ownership_form":"D","is_10b5_1":null,"transaction_date":"2023-01-04","filed_date":"2023-01-04","scope":"insider"},{"id":6146795,"accession":"0001104659-22-005056","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001104659-22-005056","line_url":"/filing/0001104659-22-005056#line-1","is_derivative":false,"issuer_cik":"0001291937","issuer_name":"Adaptimmune Therapeutics PLC","issuer_ticker":"ADAP","issuer_name_source":null,"issuer_url":"/issuer/0001291937","owner_cik":"0001291937","owner_name":"Bertrand William C JR","owner_display_name":"Bertrand William C JR","owner_url":"/insider/0001291937","role":"Officer (Chief Operating Officer)","role_mark":"O","role_mark_label":"Officer (Chief Operating Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Operating Officer","security_title":"American Depositary Shares representing Ordinary Shares","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":4368.0,"shares_display":"4,368","price_per_share":3.1918,"price_display":"3.19","price_state":"stated","total_value":13941.7824,"total_display":"13,941.78","total_whole":"13,942","shares_owned_after":7336.0,"shares_owned_after_display":"7,336","ownership_form":"D","is_10b5_1":null,"transaction_date":"2022-01-18","filed_date":"2022-01-18","scope":"insider"},{"id":6475620,"accession":"0001104659-22-004153","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001104659-22-004153","line_url":"/filing/0001104659-22-004153#line-2","is_derivative":false,"issuer_cik":"0001291937","issuer_name":"Adaptimmune Therapeutics PLC","issuer_ticker":"ADAP","issuer_name_source":null,"issuer_url":"/issuer/0001291937","owner_cik":"0001291937","owner_name":"Bertrand William C JR","owner_display_name":"Bertrand William C JR","owner_url":"/insider/0001291937","role":"Officer (Chief Operating Officer)","role_mark":"O","role_mark_label":"Officer (Chief Operating Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Operating Officer","security_title":"American Depositary Shares representing Ordinary Shares","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":2248.0,"shares_display":"2,248","price_per_share":3.5441,"price_display":"3.54","price_state":"stated","total_value":7967.1368,"total_display":"7,967.14","total_whole":"7,967","shares_owned_after":3754.0,"shares_owned_after_display":"3,754","ownership_form":"D","is_10b5_1":null,"transaction_date":"2022-01-12","filed_date":"2022-01-13","scope":"insider"},{"id":6475616,"accession":"0001104659-22-004153","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001104659-22-004153","line_url":"/filing/0001104659-22-004153#line-1","is_derivative":false,"issuer_cik":"0001291937","issuer_name":"Adaptimmune Therapeutics PLC","issuer_ticker":"ADAP","issuer_name_source":null,"issuer_url":"/issuer/0001291937","owner_cik":"0001291937","owner_name":"Bertrand William C JR","owner_display_name":"Bertrand William C JR","owner_url":"/insider/0001291937","role":"Officer (Chief Operating Officer)","role_mark":"O","role_mark_label":"Officer (Chief Operating Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Operating Officer","security_title":"American Depositary Shares representing Ordinary Shares","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":3770.0,"shares_display":"3,770","price_per_share":3.5567,"price_display":"3.56","price_state":"stated","total_value":13408.759,"total_display":"13,408.76","total_whole":"13,409","shares_owned_after":6343.0,"shares_owned_after_display":"6,343","ownership_form":"D","is_10b5_1":null,"transaction_date":"2022-01-11","filed_date":"2022-01-13","scope":"insider"},{"id":6850513,"accession":"0001104659-22-001671","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001104659-22-001671","line_url":"/filing/0001104659-22-001671#line-1","is_derivative":false,"issuer_cik":"0001291937","issuer_name":"Adaptimmune Therapeutics PLC","issuer_ticker":"ADAP","issuer_name_source":null,"issuer_url":"/issuer/0001291937","owner_cik":"0001291937","owner_name":"Bertrand William C JR","owner_display_name":"Bertrand William C JR","owner_url":"/insider/0001291937","role":"Officer (Chief Operating Officer)","role_mark":"O","role_mark_label":"Officer (Chief Operating Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Operating Officer","security_title":"American Depositary Shares representing Ordinary Shares","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":3490.0,"shares_display":"3,490","price_per_share":4.0642,"price_display":"4.06","price_state":"stated","total_value":14184.058,"total_display":"14,184.06","total_whole":"14,184","shares_owned_after":5873.0,"shares_owned_after_display":"5,873","ownership_form":"D","is_10b5_1":null,"transaction_date":"2022-01-04","filed_date":"2022-01-05","scope":"insider"},{"id":5502005,"accession":"0001104659-21-089050","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001104659-21-089050","line_url":"/filing/0001104659-21-089050#line-1","is_derivative":false,"issuer_cik":"0001291937","issuer_name":"Adaptimmune Therapeutics PLC","issuer_ticker":"ADAP","issuer_name_source":null,"issuer_url":"/issuer/0001291937","owner_cik":"0001291937","owner_name":"Bertrand William C JR","owner_display_name":"Bertrand William C JR","owner_url":"/insider/0001291937","role":"Officer (Chief Operating Officer)","role_mark":"O","role_mark_label":"Officer (Chief Operating Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Operating Officer","security_title":"American Depositary Shares representing Ordinary Shares","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":4375.0,"shares_display":"4,375","price_per_share":4.2649,"price_display":"4.26","price_state":"stated","total_value":18658.9375,"total_display":"18,658.94","total_whole":"18,659","shares_owned_after":7329.0,"shares_owned_after_display":"7,329","ownership_form":"D","is_10b5_1":null,"transaction_date":"2021-07-02","filed_date":"2021-07-02","scope":"insider"},{"id":5403624,"accession":"0001104659-21-003594","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001104659-21-003594","line_url":"/filing/0001104659-21-003594#line-1","is_derivative":false,"issuer_cik":"0001291937","issuer_name":"Adaptimmune Therapeutics PLC","issuer_ticker":"ADAP","issuer_name_source":null,"issuer_url":"/issuer/0001291937","owner_cik":"0001291937","owner_name":"Bertrand William C JR","owner_display_name":"Bertrand William C JR","owner_url":"/insider/0001291937","role":"Officer (Chief Operating Officer)","role_mark":"O","role_mark_label":"Officer (Chief Operating Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Operating Officer","security_title":"American Depositary Shares representing Ordinary Shares","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":2234.0,"shares_display":"2,234","price_per_share":6.1522,"price_display":"6.15","price_state":"stated","total_value":13744.0148,"total_display":"13,744.01","total_whole":"13,744","shares_owned_after":3768.0,"shares_owned_after_display":"3,768","ownership_form":"D","is_10b5_1":null,"transaction_date":"2021-01-12","filed_date":"2021-01-12","scope":"insider"},{"id":5205703,"accession":"0001104659-21-001177","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001104659-21-001177","line_url":"/filing/0001104659-21-001177#line-1","is_derivative":false,"issuer_cik":"0001291937","issuer_name":"Adaptimmune Therapeutics PLC","issuer_ticker":"ADAP","issuer_name_source":null,"issuer_url":"/issuer/0001291937","owner_cik":"0001291937","owner_name":"Bertrand William C JR","owner_display_name":"Bertrand William C JR","owner_url":"/insider/0001291937","role":"Officer (Chief Operating Officer)","role_mark":"O","role_mark_label":"Officer (Chief Operating Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Operating Officer","security_title":"American Depositary Shares representing Ordinary Shares","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":3499.0,"shares_display":"3,499","price_per_share":5.3279,"price_display":"5.33","price_state":"stated","total_value":18642.3221,"total_display":"18,642.32","total_whole":"18,642","shares_owned_after":5864.0,"shares_owned_after_display":"5,864","ownership_form":"D","is_10b5_1":null,"transaction_date":"2021-01-04","filed_date":"2021-01-05","scope":"insider"},{"id":2425221,"accession":"0001104659-20-135891","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001104659-20-135891","line_url":"/filing/0001104659-20-135891#line-1","is_derivative":false,"issuer_cik":"0001291937","issuer_name":"Adaptimmune Therapeutics PLC","issuer_ticker":"ADAP","issuer_name_source":null,"issuer_url":"/issuer/0001291937","owner_cik":"0001291937","owner_name":"Bertrand William C JR","owner_display_name":"Bertrand William C JR","owner_url":"/insider/0001291937","role":"Officer (Chief Operating Officer)","role_mark":"O","role_mark_label":"Officer (Chief Operating Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Operating Officer","security_title":"Ordinary Shares with a nominal value of GBP0.001 per share","transaction_code":"P","transaction_label":"Open-market purchase","open_market":true,"acquired_disposed":"A","direction_word":"acquired","shares":207000.0,"shares_display":"207,000","price_per_share":0.6948,"price_display":"0.69","price_state":"stated","total_value":143823.6,"total_display":"143,823.60","total_whole":"143,824","shares_owned_after":284808.0,"shares_owned_after_display":"284,808","ownership_form":"D","is_10b5_1":null,"transaction_date":"2020-12-14","filed_date":"2020-12-15","scope":"insider"},{"id":2297185,"accession":"0001104659-20-004423","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001104659-20-004423","line_url":"/filing/0001104659-20-004423#line-1","is_derivative":false,"issuer_cik":"0001291937","issuer_name":"Adaptimmune Therapeutics PLC","issuer_ticker":"ADAP","issuer_name_source":null,"issuer_url":"/issuer/0001291937","owner_cik":"0001291937","owner_name":"Bertrand William C JR","owner_display_name":"Bertrand William C JR","owner_url":"/insider/0001291937","role":"Officer (Chief Operating Officer)","role_mark":"O","role_mark_label":"Officer (Chief Operating Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Operating Officer","security_title":"American Depositary Shares representing Ordinary Shares","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":2397.0,"shares_display":"2,397","price_per_share":5.1347,"price_display":"5.13","price_state":"stated","total_value":12307.8759,"total_display":"12,307.88","total_whole":"12,308","shares_owned_after":3605.0,"shares_owned_after_display":"3,605","ownership_form":"D","is_10b5_1":null,"transaction_date":"2020-01-14","filed_date":"2020-01-15","scope":"insider"},{"id":3207159,"accession":"0001104659-20-002081","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001104659-20-002081","line_url":"/filing/0001104659-20-002081#line-1","is_derivative":false,"issuer_cik":"0001291937","issuer_name":"Adaptimmune Therapeutics PLC","issuer_ticker":"ADAP","issuer_name_source":null,"issuer_url":"/issuer/0001291937","owner_cik":"0001291937","owner_name":"Bertrand William C JR","owner_display_name":"Bertrand William C JR","owner_url":"/insider/0001291937","role":"Officer (Chief Operating Officer)","role_mark":"O","role_mark_label":"Officer (Chief Operating Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Operating Officer","security_title":"American Depositary Shares representing Ordinary Shares","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":3731.0,"shares_display":"3,731","price_per_share":1.2,"price_display":"1.20","price_state":"stated","total_value":4477.2,"total_display":"4,477.20","total_whole":"4,477","shares_owned_after":5632.0,"shares_owned_after_display":"5,632","ownership_form":"D","is_10b5_1":null,"transaction_date":"2020-01-06","filed_date":"2020-01-07","scope":"insider"},{"id":7777292,"accession":"0001104659-19-002165","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001104659-19-002165","line_url":"/filing/0001104659-19-002165#line-1","is_derivative":false,"issuer_cik":"0001291937","issuer_name":"Adaptimmune Therapeutics PLC","issuer_ticker":"ADAP","issuer_name_source":null,"issuer_url":"/issuer/0001291937","owner_cik":"0001291937","owner_name":"Bertrand William C JR","owner_display_name":"Bertrand William C JR","owner_url":"/insider/0001291937","role":"Officer (Chief Operating Officer)","role_mark":"O","role_mark_label":"Officer (Chief Operating Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Operating Officer","security_title":"American Depositary Shares representing Ordinary Shares","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":2271.0,"shares_display":"2,271","price_per_share":5.3694,"price_display":"5.37","price_state":"stated","total_value":12193.9074,"total_display":"12,193.91","total_whole":"12,194","shares_owned_after":3731.0,"shares_owned_after_display":"3,731","ownership_form":"D","is_10b5_1":null,"transaction_date":"2019-01-14","filed_date":"2019-01-16","scope":"insider"},{"id":8647357,"accession":"0001140361-15-045266","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001140361-15-045266","line_url":"/filing/0001140361-15-045266#line-1","is_derivative":false,"issuer_cik":"0001291937","issuer_name":"ARDELYX, INC.","issuer_ticker":"ARDX","issuer_name_source":null,"issuer_url":"/issuer/0001291937","owner_cik":"0001291937","owner_name":"Bertrand William C JR","owner_display_name":"Bertrand William C JR","owner_url":"/insider/0001291937","role":"Director","role_mark":"D","role_mark_label":"Director","role_mark_generic":"Director","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":null,"security_title":"Common Stock","transaction_code":"P","transaction_label":"Open-market purchase","open_market":true,"acquired_disposed":"A","direction_word":"acquired","shares":5000.0,"shares_display":"5,000","price_per_share":20.0,"price_display":"20.00","price_state":"stated","total_value":100000.0,"total_display":"100,000.00","total_whole":"100,000","shares_owned_after":5000.0,"shares_owned_after_display":"5,000","ownership_form":"D","is_10b5_1":null,"transaction_date":"2015-12-17","filed_date":"2015-12-21","scope":"insider"}],"collapsed":true,"next_cursor":null,"ledger_fault":false,"count":{"value":26,"kind":"exact"},"open_market_only":false,"composition":{"kind":"exact","rows":[{"code":"P","label":"Open-market purchase","n":2,"open_market":true},{"code":"S","label":"Open-market sale","n":24,"open_market":true},{"code":"M","label":"Option exercise","n":0,"open_market":false},{"code":"A","label":"Grant or award","n":0,"open_market":false},{"code":"F","label":"Tax withholding","n":0,"open_market":false},{"code":"D","label":"Disposition to the issuer","n":0,"open_market":false},{"code":"X","label":"In-the-money option exercise","n":0,"open_market":false}],"total":26},"affiliations":[{"type":"issuer","type_label":"ISSUER","cik":"0001621227","name":"Adaptimmune Therapeutics PLC","url":"/issuer/0001621227","role":"Officer (Chief Operating Officer)","n_filings":18,"first_seen":"2019-01-16","last_seen":"2025-08-29"},{"type":"issuer","type_label":"ISSUER","cik":"0001437402","name":"ARDELYX, INC.","url":"/issuer/0001437402","role":"Director","n_filings":1,"first_seen":"2015-12-21","last_seen":"2015-12-21"}],"order_statement":"Newest transaction date first, id breaking the tie.","canonical_url":"https://ebomi.com/insider/0001291937","retrieved_at":"2026-08-23T15:15:25+00:00","coverage":{"filings":1506293,"transactions":4290787,"issuers":28597,"insiders":152303,"first_filed_date":"2003-06-30","last_filed_date":"2026-08-21","last_ingest":"2026-08-22T05:23:40.159918+00:00","counts_are":{"filings":"estimate","transactions":"estimate","issuers":"estimate","insiders":"estimate"},"source":"SEC EDGAR Form 4 filings, parsed by ebomi","fault":false},"license":{"underlying_records":"US SEC filings are public records of the United States government and are not subject to copyright. The transactional facts in them are not ours to license.","this_presentation":"The parsing, normalisation, curation, and presentation are ebomi's own work.","grant":"undecided","grant_note":"The open licence for ebomi's own layer is an open owner decision (SPEC-20260731T1159Z open question 3: CC BY 4.0 or CC0 with a citation request). Until it is taken, no grant is asserted here.","citation_request":"Balogh, A. Insider trading. Scientific Data 10, 237 (2023)","url":"https://ebomi.com/license"},"fair_use":{"policy":"These JSON endpoints are open and unauthenticated. Please read them at a human pace, identify your client in the User-Agent header, and use the published dataset for bulk work rather than crawling page by page.","bulk_alternative":"doi:10.1038/s41597-023-02147-6"}}