{"entity":{"type":"insider","cik":"0001601797","url":"/insider/0001601797","json_url":"/insider/0001601797.json","name":"Sullivan Eric","name_source":"as-filed","also_issuer":false,"cross_url":null},"coverage_statement":{"n_transactions":45,"n_filings":22,"first":"2015-01-06","last":"2017-08-07","span_basis":"filed_date"},"name_variants":[{"name":"Sullivan Eric","source":"filing","n_filings":22,"first_seen":"2015-01-06","last_seen":"2017-08-07"}],"transactions":[{"id":4224850,"accession":"0001209191-17-047864","txn_seq":6,"anchor":"line-6","filing_url":"/filing/0001209191-17-047864","line_url":"/filing/0001209191-17-047864#line-6","is_derivative":false,"issuer_cik":"0001293971","issuer_name":"bluebird bio, Inc.","issuer_ticker":"BLUE","issuer_name_source":null,"issuer_url":"/issuer/0001293971","owner_cik":"0001601797","owner_name":"Sullivan Eric","owner_display_name":"Sullivan Eric","owner_url":"/insider/0001601797","role":"Officer (Principal Accounting Officer)","role_mark":"O","role_mark_label":"Officer (Principal Accounting Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Principal Accounting Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":445.0,"shares_display":"445","price_per_share":95.2128,"price_display":"95.21","price_state":"stated","total_value":42369.696,"total_display":"42,369.70","total_whole":"42,370","shares_owned_after":5674.0,"shares_owned_after_display":"5,674","ownership_form":"D","is_10b5_1":null,"transaction_date":"2017-08-04","filed_date":"2017-08-07","scope":"insider"},{"id":4224841,"accession":"0001209191-17-047864","txn_seq":3,"anchor":"line-3","filing_url":"/filing/0001209191-17-047864","line_url":"/filing/0001209191-17-047864#line-3","is_derivative":false,"issuer_cik":"0001293971","issuer_name":"bluebird bio, Inc.","issuer_ticker":"BLUE","issuer_name_source":null,"issuer_url":"/issuer/0001293971","owner_cik":"0001601797","owner_name":"Sullivan Eric","owner_display_name":"Sullivan Eric","owner_url":"/insider/0001601797","role":"Officer (Principal Accounting Officer)","role_mark":"O","role_mark_label":"Officer (Principal Accounting Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Principal Accounting Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":416.0,"shares_display":"416","price_per_share":92.35,"price_display":"92.35","price_state":"stated","total_value":38417.6,"total_display":"38,417.60","total_whole":"38,418","shares_owned_after":5674.0,"shares_owned_after_display":"5,674","ownership_form":"D","is_10b5_1":null,"transaction_date":"2017-08-03","filed_date":"2017-08-07","scope":"insider"},{"id":4784182,"accession":"0001209191-17-044359","txn_seq":6,"anchor":"line-6","filing_url":"/filing/0001209191-17-044359","line_url":"/filing/0001209191-17-044359","is_derivative":false,"issuer_cik":"0001293971","issuer_name":"bluebird bio, Inc.","issuer_ticker":"BLUE","issuer_name_source":null,"issuer_url":"/issuer/0001293971","owner_cik":"0001601797","owner_name":"Sullivan Eric","owner_display_name":"Sullivan Eric","owner_url":"/insider/0001601797","role":"Officer (Principal Accounting Officer)","role_mark":"O","role_mark_label":"Officer (Principal Accounting Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Principal Accounting Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":4313.0,"shares_display":"4,313","price_per_share":107.28180537908648,"price_display":"107.28","price_state":"stated","total_value":462706.4266,"total_display":"462,706.43","total_whole":"462,706","shares_owned_after":6407.0,"shares_owned_after_display":"6,407","ownership_form":"D","is_10b5_1":null,"transaction_date":"2017-07-05","filed_date":"2017-07-07","scope":"insider","n_lines":2},{"id":5319578,"accession":"0001209191-17-042498","txn_seq":7,"anchor":"line-7","filing_url":"/filing/0001209191-17-042498","line_url":"/filing/0001209191-17-042498","is_derivative":false,"issuer_cik":"0001293971","issuer_name":"bluebird bio, Inc.","issuer_ticker":"BLUE","issuer_name_source":null,"issuer_url":"/issuer/0001293971","owner_cik":"0001601797","owner_name":"Sullivan Eric","owner_display_name":"Sullivan Eric","owner_url":"/insider/0001601797","role":"Officer (Principal Accounting Officer)","role_mark":"O","role_mark_label":"Officer (Principal Accounting Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Principal Accounting Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":6787.0,"shares_display":"6,787","price_per_share":108.96270312361868,"price_display":"108.96","price_state":"stated","total_value":739529.8661,"total_display":"739,529.87","total_whole":"739,530","shares_owned_after":9901.0,"shares_owned_after_display":"9,901","ownership_form":"D","is_10b5_1":null,"transaction_date":"2017-06-29","filed_date":"2017-06-30","scope":"insider","n_lines":4},{"id":4540223,"accession":"0001209191-17-021692","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001209191-17-021692","line_url":"/filing/0001209191-17-021692#line-1","is_derivative":false,"issuer_cik":"0001293971","issuer_name":"bluebird bio, Inc.","issuer_ticker":"BLUE","issuer_name_source":null,"issuer_url":"/issuer/0001293971","owner_cik":"0001601797","owner_name":"Sullivan Eric","owner_display_name":"Sullivan Eric","owner_url":"/insider/0001601797","role":"Officer (Principal Accounting Officer)","role_mark":"O","role_mark_label":"Officer (Principal Accounting Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Principal Accounting Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":411.0,"shares_display":"411","price_per_share":99.0,"price_display":"99.00","price_state":"stated","total_value":40689.0,"total_display":"40,689.00","total_whole":"40,689","shares_owned_after":6466.0,"shares_owned_after_display":"6,466","ownership_form":"D","is_10b5_1":null,"transaction_date":"2017-03-16","filed_date":"2017-03-20","scope":"insider"},{"id":4622462,"accession":"0001209191-17-016614","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001209191-17-016614","line_url":"/filing/0001209191-17-016614#line-1","is_derivative":false,"issuer_cik":"0001293971","issuer_name":"bluebird bio, Inc.","issuer_ticker":"BLUE","issuer_name_source":null,"issuer_url":"/issuer/0001293971","owner_cik":"0001601797","owner_name":"Sullivan Eric","owner_display_name":"Sullivan Eric","owner_url":"/insider/0001601797","role":"Officer (Principal Accounting Officer)","role_mark":"O","role_mark_label":"Officer (Principal Accounting Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Principal Accounting Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":285.0,"shares_display":"285","price_per_share":89.0,"price_display":"89.00","price_state":"stated","total_value":25365.0,"total_display":"25,365.00","total_whole":"25,365","shares_owned_after":6877.0,"shares_owned_after_display":"6,877","ownership_form":"D","is_10b5_1":null,"transaction_date":"2017-02-28","filed_date":"2017-03-02","scope":"insider"},{"id":4102150,"accession":"0001209191-17-002923","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001209191-17-002923","line_url":"/filing/0001209191-17-002923#line-1","is_derivative":false,"issuer_cik":"0001293971","issuer_name":"bluebird bio, Inc.","issuer_ticker":"BLUE","issuer_name_source":null,"issuer_url":"/issuer/0001293971","owner_cik":"0001601797","owner_name":"Sullivan Eric","owner_display_name":"Sullivan Eric","owner_url":"/insider/0001601797","role":"Officer (Principal Accounting Officer)","role_mark":"O","role_mark_label":"Officer (Principal Accounting Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Principal Accounting Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":229.0,"shares_display":"229","price_per_share":67.1,"price_display":"67.10","price_state":"stated","total_value":15365.9,"total_display":"15,365.90","total_whole":"15,366","shares_owned_after":5412.0,"shares_owned_after_display":"5,412","ownership_form":"D","is_10b5_1":null,"transaction_date":"2017-01-05","filed_date":"2017-01-09","scope":"insider"},{"id":2829414,"accession":"0001209191-16-144865","txn_seq":3,"anchor":"line-3","filing_url":"/filing/0001209191-16-144865","line_url":"/filing/0001209191-16-144865#line-3","is_derivative":false,"issuer_cik":"0001293971","issuer_name":"bluebird bio, Inc.","issuer_ticker":"BLUE","issuer_name_source":null,"issuer_url":"/issuer/0001293971","owner_cik":"0001601797","owner_name":"Sullivan Eric","owner_display_name":"Sullivan Eric","owner_url":"/insider/0001601797","role":"Officer (Principal Accounting Officer)","role_mark":"O","role_mark_label":"Officer (Principal Accounting Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Principal Accounting Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":416.0,"shares_display":"416","price_per_share":66.9968,"price_display":"67.00","price_state":"stated","total_value":27870.6688,"total_display":"27,870.67","total_whole":"27,871","shares_owned_after":5641.0,"shares_owned_after_display":"5,641","ownership_form":"D","is_10b5_1":null,"transaction_date":"2016-10-03","filed_date":"2016-10-05","scope":"insider"},{"id":2180517,"accession":"0001209191-16-141570","txn_seq":3,"anchor":"line-3","filing_url":"/filing/0001209191-16-141570","line_url":"/filing/0001209191-16-141570#line-3","is_derivative":false,"issuer_cik":"0001293971","issuer_name":"bluebird bio, Inc.","issuer_ticker":"BLUE","issuer_name_source":null,"issuer_url":"/issuer/0001293971","owner_cik":"0001601797","owner_name":"Sullivan Eric","owner_display_name":"Sullivan Eric","owner_url":"/insider/0001601797","role":"Officer (Principal Accounting Officer)","role_mark":"O","role_mark_label":"Officer (Principal Accounting Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Principal Accounting Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":416.0,"shares_display":"416","price_per_share":59.0,"price_display":"59.00","price_state":"stated","total_value":24544.0,"total_display":"24,544.00","total_whole":"24,544","shares_owned_after":5641.0,"shares_owned_after_display":"5,641","ownership_form":"D","is_10b5_1":null,"transaction_date":"2016-09-13","filed_date":"2016-09-15","scope":"insider"},{"id":3354084,"accession":"0001209191-16-135695","txn_seq":3,"anchor":"line-3","filing_url":"/filing/0001209191-16-135695","line_url":"/filing/0001209191-16-135695#line-3","is_derivative":false,"issuer_cik":"0001293971","issuer_name":"bluebird bio, Inc.","issuer_ticker":"BLUE","issuer_name_source":null,"issuer_url":"/issuer/0001293971","owner_cik":"0001601797","owner_name":"Sullivan Eric","owner_display_name":"Sullivan Eric","owner_url":"/insider/0001601797","role":"Officer (Principal Accounting Officer)","role_mark":"O","role_mark_label":"Officer (Principal Accounting Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Principal Accounting Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":416.0,"shares_display":"416","price_per_share":59.0,"price_display":"59.00","price_state":"stated","total_value":24544.0,"total_display":"24,544.00","total_whole":"24,544","shares_owned_after":5641.0,"shares_owned_after_display":"5,641","ownership_form":"D","is_10b5_1":null,"transaction_date":"2016-08-03","filed_date":"2016-08-05","scope":"insider"},{"id":2516114,"accession":"0001209191-16-134439","txn_seq":3,"anchor":"line-3","filing_url":"/filing/0001209191-16-134439","line_url":"/filing/0001209191-16-134439#line-3","is_derivative":false,"issuer_cik":"0001293971","issuer_name":"bluebird bio, Inc.","issuer_ticker":"BLUE","issuer_name_source":null,"issuer_url":"/issuer/0001293971","owner_cik":"0001601797","owner_name":"Sullivan Eric","owner_display_name":"Sullivan Eric","owner_url":"/insider/0001601797","role":"Officer (Principal Accounting Officer)","role_mark":"O","role_mark_label":"Officer (Principal Accounting Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Principal Accounting Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":2912.0,"shares_display":"2,912","price_per_share":55.0062,"price_display":"55.01","price_state":"stated","total_value":160178.0544,"total_display":"160,178.05","total_whole":"160,178","shares_owned_after":2706.0,"shares_owned_after_display":"2,706","ownership_form":"D","is_10b5_1":null,"transaction_date":"2016-07-27","filed_date":"2016-07-29","scope":"insider"},{"id":2594735,"accession":"0001209191-16-133601","txn_seq":3,"anchor":"line-3","filing_url":"/filing/0001209191-16-133601","line_url":"/filing/0001209191-16-133601","is_derivative":false,"issuer_cik":"0001293971","issuer_name":"bluebird bio, Inc.","issuer_ticker":"BLUE","issuer_name_source":null,"issuer_url":"/issuer/0001293971","owner_cik":"0001601797","owner_name":"Sullivan Eric","owner_display_name":"Sullivan Eric","owner_url":"/insider/0001601797","role":"Officer (Principal Accounting Officer)","role_mark":"O","role_mark_label":"Officer (Principal Accounting Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Principal Accounting Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":1950.0,"shares_display":"1,950","price_per_share":44.877116923076926,"price_display":"44.88","price_state":"stated","total_value":87510.378,"total_display":"87,510.38","total_whole":"87,510","shares_owned_after":2807.0,"shares_owned_after_display":"2,807","ownership_form":"D","is_10b5_1":null,"transaction_date":"2016-07-20","filed_date":"2016-07-21","scope":"insider","n_lines":2},{"id":2594726,"accession":"0001209191-16-133601","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001209191-16-133601","line_url":"/filing/0001209191-16-133601#line-1","is_derivative":false,"issuer_cik":"0001293971","issuer_name":"bluebird bio, Inc.","issuer_ticker":"BLUE","issuer_name_source":null,"issuer_url":"/issuer/0001293971","owner_cik":"0001601797","owner_name":"Sullivan Eric","owner_display_name":"Sullivan Eric","owner_url":"/insider/0001601797","role":"Officer (Principal Accounting Officer)","role_mark":"O","role_mark_label":"Officer (Principal Accounting Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Principal Accounting Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":857.0,"shares_display":"857","price_per_share":45.4,"price_display":"45.40","price_state":"stated","total_value":38907.8,"total_display":"38,907.80","total_whole":"38,908","shares_owned_after":4656.0,"shares_owned_after_display":"4,656","ownership_form":"D","is_10b5_1":null,"transaction_date":"2016-07-19","filed_date":"2016-07-21","scope":"insider"},{"id":8887464,"accession":"0001209191-15-083434","txn_seq":3,"anchor":"line-3","filing_url":"/filing/0001209191-15-083434","line_url":"/filing/0001209191-15-083434#line-3","is_derivative":false,"issuer_cik":"0001293971","issuer_name":"bluebird bio, Inc.","issuer_ticker":"BLUE","issuer_name_source":null,"issuer_url":"/issuer/0001293971","owner_cik":"0001601797","owner_name":"Sullivan Eric","owner_display_name":"Sullivan Eric","owner_url":"/insider/0001601797","role":"Officer (Principal Accounting Officer)","role_mark":"O","role_mark_label":"Officer (Principal Accounting Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Principal Accounting Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":416.0,"shares_display":"416","price_per_share":81.133,"price_display":"81.13","price_state":"stated","total_value":33751.328,"total_display":"33,751.33","total_whole":"33,751","shares_owned_after":3218.0,"shares_owned_after_display":"3,218","ownership_form":"D","is_10b5_1":null,"transaction_date":"2015-12-02","filed_date":"2015-12-04","scope":"insider"},{"id":8775054,"accession":"0001209191-15-078275","txn_seq":3,"anchor":"line-3","filing_url":"/filing/0001209191-15-078275","line_url":"/filing/0001209191-15-078275#line-3","is_derivative":false,"issuer_cik":"0001293971","issuer_name":"bluebird bio, Inc.","issuer_ticker":"BLUE","issuer_name_source":null,"issuer_url":"/issuer/0001293971","owner_cik":"0001601797","owner_name":"Sullivan Eric","owner_display_name":"Sullivan Eric","owner_url":"/insider/0001601797","role":"Officer (Principal Accounting Officer)","role_mark":"O","role_mark_label":"Officer (Principal Accounting Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Principal Accounting Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":416.0,"shares_display":"416","price_per_share":77.8692,"price_display":"77.87","price_state":"stated","total_value":32393.5872,"total_display":"32,393.59","total_whole":"32,394","shares_owned_after":3218.0,"shares_owned_after_display":"3,218","ownership_form":"D","is_10b5_1":null,"transaction_date":"2015-11-02","filed_date":"2015-11-04","scope":"insider"},{"id":8886797,"accession":"0001209191-15-074324","txn_seq":4,"anchor":"line-4","filing_url":"/filing/0001209191-15-074324","line_url":"/filing/0001209191-15-074324","is_derivative":false,"issuer_cik":"0001293971","issuer_name":"bluebird bio, Inc.","issuer_ticker":"BLUE","issuer_name_source":null,"issuer_url":"/issuer/0001293971","owner_cik":"0001601797","owner_name":"Sullivan Eric","owner_display_name":"Sullivan Eric","owner_url":"/insider/0001601797","role":"Officer (Principal Accounting Officer)","role_mark":"O","role_mark_label":"Officer (Principal Accounting Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Principal Accounting Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":416.0,"shares_display":"416","price_per_share":86.10459326923078,"price_display":"86.10","price_state":"stated","total_value":35819.5108,"total_display":"35,819.51","total_whole":"35,820","shares_owned_after":3318.0,"shares_owned_after_display":"3,318","ownership_form":"D","is_10b5_1":null,"transaction_date":"2015-10-02","filed_date":"2015-10-06","scope":"insider","n_lines":2},{"id":8751729,"accession":"0001209191-15-069596","txn_seq":3,"anchor":"line-3","filing_url":"/filing/0001209191-15-069596","line_url":"/filing/0001209191-15-069596#line-3","is_derivative":false,"issuer_cik":"0001293971","issuer_name":"bluebird bio, Inc.","issuer_ticker":"BLUE","issuer_name_source":null,"issuer_url":"/issuer/0001293971","owner_cik":"0001601797","owner_name":"Sullivan Eric","owner_display_name":"Sullivan Eric","owner_url":"/insider/0001601797","role":"Officer (Principal Accounting Officer)","role_mark":"O","role_mark_label":"Officer (Principal Accounting Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Principal Accounting Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":416.0,"shares_display":"416","price_per_share":130.9405,"price_display":"130.94","price_state":"stated","total_value":54471.248,"total_display":"54,471.25","total_whole":"54,471","shares_owned_after":3218.0,"shares_owned_after_display":"3,218","ownership_form":"D","is_10b5_1":null,"transaction_date":"2015-09-02","filed_date":"2015-09-04","scope":"insider"},{"id":8578799,"accession":"0001209191-15-063994","txn_seq":6,"anchor":"line-6","filing_url":"/filing/0001209191-15-063994","line_url":"/filing/0001209191-15-063994","is_derivative":false,"issuer_cik":"0001293971","issuer_name":"bluebird bio, Inc.","issuer_ticker":"BLUE","issuer_name_source":null,"issuer_url":"/issuer/0001293971","owner_cik":"0001601797","owner_name":"Sullivan Eric","owner_display_name":"Sullivan Eric","owner_url":"/insider/0001601797","role":"Officer (Principal Accounting Officer)","role_mark":"O","role_mark_label":"Officer (Principal Accounting Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Principal Accounting Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":416.0,"shares_display":"416","price_per_share":165.38831971153846,"price_display":"165.39","price_state":"stated","total_value":68801.541,"total_display":"68,801.54","total_whole":"68,802","shares_owned_after":3339.0,"shares_owned_after_display":"3,339","ownership_form":"D","is_10b5_1":null,"transaction_date":"2015-08-03","filed_date":"2015-08-05","scope":"insider","n_lines":4},{"id":8827381,"accession":"0001209191-15-061837","txn_seq":4,"anchor":"line-4","filing_url":"/filing/0001209191-15-061837","line_url":"/filing/0001209191-15-061837","is_derivative":false,"issuer_cik":"0001293971","issuer_name":"bluebird bio, Inc.","issuer_ticker":"BLUE","issuer_name_source":null,"issuer_url":"/issuer/0001293971","owner_cik":"0001601797","owner_name":"Sullivan Eric","owner_display_name":"Sullivan Eric","owner_url":"/insider/0001601797","role":"Officer (Principal Accounting Officer)","role_mark":"O","role_mark_label":"Officer (Principal Accounting Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Principal Accounting Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":682.0,"shares_display":"682","price_per_share":162.564726686217,"price_display":"162.56","price_state":"stated","total_value":110869.1436,"total_display":"110,869.14","total_whole":"110,869","shares_owned_after":3260.0,"shares_owned_after_display":"3,260","ownership_form":"D","is_10b5_1":null,"transaction_date":"2015-07-20","filed_date":"2015-07-21","scope":"insider","n_lines":3},{"id":8827375,"accession":"0001209191-15-061837","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001209191-15-061837","line_url":"/filing/0001209191-15-061837#line-1","is_derivative":false,"issuer_cik":"0001293971","issuer_name":"bluebird bio, Inc.","issuer_ticker":"BLUE","issuer_name_source":null,"issuer_url":"/issuer/0001293971","owner_cik":"0001601797","owner_name":"Sullivan Eric","owner_display_name":"Sullivan Eric","owner_url":"/insider/0001601797","role":"Officer (Principal Accounting Officer)","role_mark":"O","role_mark_label":"Officer (Principal Accounting Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Principal Accounting Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":444.0,"shares_display":"444","price_per_share":164.5824,"price_display":"164.58","price_state":"stated","total_value":73074.5856,"total_display":"73,074.59","total_whole":"73,075","shares_owned_after":3772.0,"shares_owned_after_display":"3,772","ownership_form":"D","is_10b5_1":null,"transaction_date":"2015-07-17","filed_date":"2015-07-21","scope":"insider"},{"id":8082721,"accession":"0001209191-15-059464","txn_seq":3,"anchor":"line-3","filing_url":"/filing/0001209191-15-059464","line_url":"/filing/0001209191-15-059464#line-3","is_derivative":false,"issuer_cik":"0001293971","issuer_name":"bluebird bio, Inc.","issuer_ticker":"BLUE","issuer_name_source":null,"issuer_url":"/issuer/0001293971","owner_cik":"0001601797","owner_name":"Sullivan Eric","owner_display_name":"Sullivan Eric","owner_url":"/insider/0001601797","role":"Officer (Principal Accounting Officer)","role_mark":"O","role_mark_label":"Officer (Principal Accounting Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Principal Accounting Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":416.0,"shares_display":"416","price_per_share":163.4679,"price_display":"163.47","price_state":"stated","total_value":68002.6464,"total_display":"68,002.65","total_whole":"68,003","shares_owned_after":4216.0,"shares_owned_after_display":"4,216","ownership_form":"D","is_10b5_1":null,"transaction_date":"2015-07-02","filed_date":"2015-07-06","scope":"insider"},{"id":8785763,"accession":"0001209191-15-050085","txn_seq":3,"anchor":"line-3","filing_url":"/filing/0001209191-15-050085","line_url":"/filing/0001209191-15-050085#line-3","is_derivative":false,"issuer_cik":"0001293971","issuer_name":"bluebird bio, Inc.","issuer_ticker":"BLUE","issuer_name_source":null,"issuer_url":"/issuer/0001293971","owner_cik":"0001601797","owner_name":"Sullivan Eric","owner_display_name":"Sullivan Eric","owner_url":"/insider/0001601797","role":"Officer (Principal Accounting Officer)","role_mark":"O","role_mark_label":"Officer (Principal Accounting Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Principal Accounting Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":416.0,"shares_display":"416","price_per_share":190.1964,"price_display":"190.20","price_state":"stated","total_value":79121.7024,"total_display":"79,121.70","total_whole":"79,122","shares_owned_after":316.0,"shares_owned_after_display":"316","ownership_form":"D","is_10b5_1":null,"transaction_date":"2015-06-02","filed_date":"2015-06-04","scope":"insider"},{"id":8489654,"accession":"0001209191-15-039175","txn_seq":5,"anchor":"line-5","filing_url":"/filing/0001209191-15-039175","line_url":"/filing/0001209191-15-039175","is_derivative":false,"issuer_cik":"0001293971","issuer_name":"bluebird bio, Inc.","issuer_ticker":"BLUE","issuer_name_source":null,"issuer_url":"/issuer/0001293971","owner_cik":"0001601797","owner_name":"Sullivan Eric","owner_display_name":"Sullivan Eric","owner_url":"/insider/0001601797","role":"Officer (Principal Accounting Officer)","role_mark":"O","role_mark_label":"Officer (Principal Accounting Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Principal Accounting Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":416.0,"shares_display":"416","price_per_share":131.83666418269232,"price_display":"131.84","price_state":"stated","total_value":54844.0523,"total_display":"54,844.05","total_whole":"54,844","shares_owned_after":543.0,"shares_owned_after_display":"543","ownership_form":"D","is_10b5_1":null,"transaction_date":"2015-05-04","filed_date":"2015-05-06","scope":"insider","n_lines":3},{"id":8488802,"accession":"0001209191-15-032090","txn_seq":5,"anchor":"line-5","filing_url":"/filing/0001209191-15-032090","line_url":"/filing/0001209191-15-032090","is_derivative":false,"issuer_cik":"0001293971","issuer_name":"bluebird bio, Inc.","issuer_ticker":"BLUE","issuer_name_source":null,"issuer_url":"/issuer/0001293971","owner_cik":"0001601797","owner_name":"Sullivan Eric","owner_display_name":"Sullivan Eric","owner_url":"/insider/0001601797","role":"Officer (Principal Accounting Officer)","role_mark":"O","role_mark_label":"Officer (Principal Accounting Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Principal Accounting Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":2998.0,"shares_display":"2,998","price_per_share":117.81009659773183,"price_display":"117.81","price_state":"stated","total_value":353194.6696,"total_display":"353,194.67","total_whole":"353,195","shares_owned_after":1321.0,"shares_owned_after_display":"1,321","ownership_form":"D","is_10b5_1":null,"transaction_date":"2015-04-02","filed_date":"2015-04-03","scope":"insider","n_lines":3},{"id":8919570,"accession":"0001209191-15-002133","txn_seq":8,"anchor":"line-8","filing_url":"/filing/0001209191-15-002133","line_url":"/filing/0001209191-15-002133","is_derivative":false,"issuer_cik":"0001293971","issuer_name":"bluebird bio, Inc.","issuer_ticker":"BLUE","issuer_name_source":null,"issuer_url":"/issuer/0001293971","owner_cik":"0001601797","owner_name":"Sullivan Eric","owner_display_name":"Sullivan Eric","owner_url":"/insider/0001601797","role":"Officer (Principal Accounting Officer)","role_mark":"O","role_mark_label":"Officer (Principal Accounting Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Principal Accounting Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":3750.0,"shares_display":"3,750","price_per_share":90.00826168,"price_display":"90.01","price_state":"stated","total_value":337530.9813,"total_display":"337,530.98","total_whole":"337,531","shares_owned_after":2581.0,"shares_owned_after_display":"2,581","ownership_form":"D","is_10b5_1":null,"transaction_date":"2015-01-02","filed_date":"2015-01-06","scope":"insider","n_lines":6}],"collapsed":true,"next_cursor":null,"ledger_fault":false,"count":{"value":45,"kind":"exact"},"open_market_only":false,"composition":{"kind":"exact","rows":[{"code":"P","label":"Open-market purchase","n":0,"open_market":true},{"code":"S","label":"Open-market sale","n":45,"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":45},"affiliations":[{"type":"issuer","type_label":"ISSUER","cik":"0001293971","name":"bluebird bio, Inc.","url":"/issuer/0001293971","role":"Officer (Principal Accounting Officer)","n_filings":22,"first_seen":"2015-01-06","last_seen":"2017-08-07"}],"order_statement":"Newest transaction date first, id breaking the tie.","canonical_url":"https://ebomi.com/insider/0001601797","retrieved_at":"2026-08-25T20:28:47+00:00","coverage":{"filings":1506293,"transactions":4290787,"issuers":28597,"insiders":152303,"first_filed_date":"2003-06-30","last_filed_date":"2026-08-24","last_ingest":"2026-08-25T05:24:19.374141+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"}}