{"entity":{"type":"insider","cik":"0001657434","url":"/insider/0001657434","json_url":"/insider/0001657434.json","name":"Hack Andrew A. F.","name_source":"as-filed","also_issuer":false,"cross_url":null},"coverage_statement":{"n_transactions":60,"n_filings":37,"first":"2017-01-13","last":"2024-12-13","span_basis":"filed_date"},"name_variants":[{"name":"Hack Andrew A. F.","source":"filing","n_filings":37,"first_seen":"2017-01-13","last_seen":"2024-12-13"}],"transactions":[{"id":2995901,"accession":"0000950170-24-136230","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0000950170-24-136230","line_url":"/filing/0000950170-24-136230#line-1","is_derivative":false,"issuer_cik":"0001657434","issuer_name":"Nuvalent, Inc.","issuer_ticker":"NUVL","issuer_name_source":null,"issuer_url":"/issuer/0001657434","owner_cik":"0001657434","owner_name":"Hack Andrew A. F.","owner_display_name":"Hack Andrew A. F.","owner_url":"/insider/0001657434","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":"Class A Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":1250000.0,"shares_display":"1,250,000","price_per_share":88.0,"price_display":"88.00","price_state":"stated","total_value":110000000.0,"total_display":"110,000,000.00","total_whole":"110,000,000","shares_owned_after":1447267.0,"shares_owned_after_display":"1,447,267","ownership_form":"I","is_10b5_1":null,"transaction_date":"2024-12-11","filed_date":"2024-12-13","scope":"insider"},{"id":2204518,"accession":"0000950170-24-038756","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0000950170-24-038756","line_url":"/filing/0000950170-24-038756","is_derivative":false,"issuer_cik":"0001657434","issuer_name":"Nuvalent, Inc.","issuer_ticker":"NUVL","issuer_name_source":null,"issuer_url":"/issuer/0001657434","owner_cik":"0001657434","owner_name":"Hack Andrew A. F.","owner_display_name":"Hack Andrew A. F.","owner_url":"/insider/0001657434","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":"Class A Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":880000.0,"shares_display":"880,000","price_per_share":72.7681347653409,"price_display":"72.77","price_state":"stated","total_value":64035958.5935,"total_display":"64,035,958.59","total_whole":"64,035,959","shares_owned_after":2697267.0,"shares_owned_after_display":"2,697,267","ownership_form":"I","is_10b5_1":null,"transaction_date":"2024-03-27","filed_date":"2024-03-29","scope":"insider","n_lines":2},{"id":7919524,"accession":"0000950170-23-041402","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0000950170-23-041402","line_url":"/filing/0000950170-23-041402#line-1","is_derivative":false,"issuer_cik":"0001029142","issuer_name":"DYNAVAX TECHNOLOGIES CORP","issuer_ticker":"DVAX","issuer_name_source":null,"issuer_url":"/issuer/0001029142","owner_cik":"0001657434","owner_name":"Hack Andrew A. F.","owner_display_name":"Hack Andrew A. F.","owner_url":"/insider/0001657434","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":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":1500000.0,"shares_display":"1,500,000","price_per_share":14.39,"price_display":"14.39","price_state":"stated","total_value":21585000.0,"total_display":"21,585,000.00","total_whole":"21,585,000","shares_owned_after":915000.0,"shares_owned_after_display":"915,000","ownership_form":"I","is_10b5_1":null,"transaction_date":"2023-08-08","filed_date":"2023-08-10","scope":"insider"},{"id":8186367,"accession":"0000899243-23-015776","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0000899243-23-015776","line_url":"/filing/0000899243-23-015776#line-1","is_derivative":false,"issuer_cik":"0001029142","issuer_name":"DYNAVAX TECHNOLOGIES CORP","issuer_ticker":"DVAX","issuer_name_source":null,"issuer_url":"/issuer/0001029142","owner_cik":"0001657434","owner_name":"Hack Andrew A. F.","owner_display_name":"Hack Andrew A. F.","owner_url":"/insider/0001657434","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":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":500000.0,"shares_display":"500,000","price_per_share":12.68,"price_display":"12.68","price_state":"stated","total_value":6340000.0,"total_display":"6,340,000.00","total_whole":"6,340,000","shares_owned_after":2415000.0,"shares_owned_after_display":"2,415,000","ownership_form":"I","is_10b5_1":null,"transaction_date":"2023-06-14","filed_date":"2023-06-16","scope":"insider"},{"id":8388526,"accession":"0000899243-23-013349","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0000899243-23-013349","line_url":"/filing/0000899243-23-013349#line-1","is_derivative":false,"issuer_cik":"0001029142","issuer_name":"DYNAVAX TECHNOLOGIES CORP","issuer_ticker":"DVAX","issuer_name_source":null,"issuer_url":"/issuer/0001029142","owner_cik":"0001657434","owner_name":"Hack Andrew A. F.","owner_display_name":"Hack Andrew A. F.","owner_url":"/insider/0001657434","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":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":1000000.0,"shares_display":"1,000,000","price_per_share":10.55,"price_display":"10.55","price_state":"stated","total_value":10550000.0,"total_display":"10,550,000.00","total_whole":"10,550,000","shares_owned_after":2915000.0,"shares_owned_after_display":"2,915,000","ownership_form":"I","is_10b5_1":null,"transaction_date":"2023-05-18","filed_date":"2023-05-19","scope":"insider"},{"id":6415063,"accession":"0000899243-22-037989","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0000899243-22-037989","line_url":"/filing/0000899243-22-037989#line-1","is_derivative":false,"issuer_cik":"0001029142","issuer_name":"DYNAVAX TECHNOLOGIES CORP","issuer_ticker":"DVAX","issuer_name_source":null,"issuer_url":"/issuer/0001029142","owner_cik":"0001657434","owner_name":"Hack Andrew A. F.","owner_display_name":"Hack Andrew A. F.","owner_url":"/insider/0001657434","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":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":1500000.0,"shares_display":"1,500,000","price_per_share":11.6,"price_display":"11.60","price_state":"stated","total_value":17400000.0,"total_display":"17,400,000.00","total_whole":"17,400,000","shares_owned_after":3915000.0,"shares_owned_after_display":"3,915,000","ownership_form":"I","is_10b5_1":null,"transaction_date":"2022-12-06","filed_date":"2022-12-08","scope":"insider"},{"id":6841711,"accession":"0000899243-22-034893","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0000899243-22-034893","line_url":"/filing/0000899243-22-034893#line-1","is_derivative":false,"issuer_cik":"0001657434","issuer_name":"Nuvalent, Inc.","issuer_ticker":"NUVL","issuer_name_source":null,"issuer_url":"/issuer/0001657434","owner_cik":"0001657434","owner_name":"Hack Andrew A. F.","owner_display_name":"Hack Andrew A. F.","owner_url":"/insider/0001657434","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":"Class A Common Stock","transaction_code":"P","transaction_label":"Open-market purchase","open_market":true,"acquired_disposed":"A","direction_word":"acquired","shares":149253.0,"shares_display":"149,253","price_per_share":33.5,"price_display":"33.50","price_state":"stated","total_value":4999975.5,"total_display":"4,999,975.50","total_whole":"4,999,976","shares_owned_after":3577267.0,"shares_owned_after_display":"3,577,267","ownership_form":"I","is_10b5_1":null,"transaction_date":"2022-11-03","filed_date":"2022-11-03","scope":"insider"},{"id":6318837,"accession":"0000899243-22-029005","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0000899243-22-029005","line_url":"/filing/0000899243-22-029005#line-1","is_derivative":false,"issuer_cik":"0001029142","issuer_name":"DYNAVAX TECHNOLOGIES CORP","issuer_ticker":"DVAX","issuer_name_source":null,"issuer_url":"/issuer/0001029142","owner_cik":"0001657434","owner_name":"Hack Andrew A. F.","owner_display_name":"Hack Andrew A. F.","owner_url":"/insider/0001657434","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":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":3000000.0,"shares_display":"3,000,000","price_per_share":14.68,"price_display":"14.68","price_state":"stated","total_value":44040000.0,"total_display":"44,040,000.00","total_whole":"44,040,000","shares_owned_after":5415000.0,"shares_owned_after_display":"5,415,000","ownership_form":"I","is_10b5_1":null,"transaction_date":"2022-08-15","filed_date":"2022-08-17","scope":"insider"},{"id":6502622,"accession":"0000899243-22-020726","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0000899243-22-020726","line_url":"/filing/0000899243-22-020726#line-2","is_derivative":false,"issuer_cik":"0001442836","issuer_name":"Mersana Therapeutics, Inc.","issuer_ticker":"MRSN","issuer_name_source":null,"issuer_url":"/issuer/0001442836","owner_cik":"0001657434","owner_name":"Hack Andrew A. F.","owner_display_name":"Hack Andrew A. F.","owner_url":"/insider/0001657434","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":14760.0,"shares_display":"14,760","price_per_share":3.1966,"price_display":"3.20","price_state":"stated","total_value":47181.816,"total_display":"47,181.82","total_whole":"47,182","shares_owned_after":8663673.0,"shares_owned_after_display":"8,663,673","ownership_form":"I","is_10b5_1":null,"transaction_date":"2022-06-02","filed_date":"2022-06-02","scope":"insider"},{"id":6502620,"accession":"0000899243-22-020726","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0000899243-22-020726","line_url":"/filing/0000899243-22-020726#line-1","is_derivative":false,"issuer_cik":"0001442836","issuer_name":"Mersana Therapeutics, Inc.","issuer_ticker":"MRSN","issuer_name_source":null,"issuer_url":"/issuer/0001442836","owner_cik":"0001657434","owner_name":"Hack Andrew A. F.","owner_display_name":"Hack Andrew A. F.","owner_url":"/insider/0001657434","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":80759.0,"shares_display":"80,759","price_per_share":3.2786,"price_display":"3.28","price_state":"stated","total_value":264776.4574,"total_display":"264,776.46","total_whole":"264,776","shares_owned_after":8648913.0,"shares_owned_after_display":"8,648,913","ownership_form":"I","is_10b5_1":null,"transaction_date":"2022-05-31","filed_date":"2022-06-02","scope":"insider"},{"id":6502601,"accession":"0000899243-22-019801","txn_seq":3,"anchor":"line-3","filing_url":"/filing/0000899243-22-019801","line_url":"/filing/0000899243-22-019801#line-3","is_derivative":false,"issuer_cik":"0001442836","issuer_name":"Mersana Therapeutics, Inc.","issuer_ticker":"MRSN","issuer_name_source":null,"issuer_url":"/issuer/0001442836","owner_cik":"0001657434","owner_name":"Hack Andrew A. F.","owner_display_name":"Hack Andrew A. F.","owner_url":"/insider/0001657434","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":75000.0,"shares_display":"75,000","price_per_share":3.1859,"price_display":"3.19","price_state":"stated","total_value":238942.5,"total_display":"238,942.50","total_whole":"238,943","shares_owned_after":8568154.0,"shares_owned_after_display":"8,568,154","ownership_form":"I","is_10b5_1":null,"transaction_date":"2022-05-26","filed_date":"2022-05-26","scope":"insider"},{"id":6502595,"accession":"0000899243-22-019801","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0000899243-22-019801","line_url":"/filing/0000899243-22-019801#line-2","is_derivative":false,"issuer_cik":"0001442836","issuer_name":"Mersana Therapeutics, Inc.","issuer_ticker":"MRSN","issuer_name_source":null,"issuer_url":"/issuer/0001442836","owner_cik":"0001657434","owner_name":"Hack Andrew A. F.","owner_display_name":"Hack Andrew A. F.","owner_url":"/insider/0001657434","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":90155.0,"shares_display":"90,155","price_per_share":3.175,"price_display":"3.18","price_state":"stated","total_value":286242.125,"total_display":"286,242.12","total_whole":"286,242","shares_owned_after":8493154.0,"shares_owned_after_display":"8,493,154","ownership_form":"I","is_10b5_1":null,"transaction_date":"2022-05-25","filed_date":"2022-05-26","scope":"insider"},{"id":6502592,"accession":"0000899243-22-019801","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0000899243-22-019801","line_url":"/filing/0000899243-22-019801#line-1","is_derivative":false,"issuer_cik":"0001442836","issuer_name":"Mersana Therapeutics, Inc.","issuer_ticker":"MRSN","issuer_name_source":null,"issuer_url":"/issuer/0001442836","owner_cik":"0001657434","owner_name":"Hack Andrew A. F.","owner_display_name":"Hack Andrew A. F.","owner_url":"/insider/0001657434","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":100000.0,"shares_display":"100,000","price_per_share":3.2899,"price_display":"3.29","price_state":"stated","total_value":328990.0,"total_display":"328,990.00","total_whole":"328,990","shares_owned_after":8402999.0,"shares_owned_after_display":"8,402,999","ownership_form":"I","is_10b5_1":null,"transaction_date":"2022-05-24","filed_date":"2022-05-26","scope":"insider"},{"id":6089163,"accession":"0000899243-22-019274","txn_seq":3,"anchor":"line-3","filing_url":"/filing/0000899243-22-019274","line_url":"/filing/0000899243-22-019274#line-3","is_derivative":false,"issuer_cik":"0001442836","issuer_name":"Mersana Therapeutics, Inc.","issuer_ticker":"MRSN","issuer_name_source":null,"issuer_url":"/issuer/0001442836","owner_cik":"0001657434","owner_name":"Hack Andrew A. F.","owner_display_name":"Hack Andrew A. F.","owner_url":"/insider/0001657434","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":15599.0,"shares_display":"15,599","price_per_share":3.3494,"price_display":"3.35","price_state":"stated","total_value":52247.2906,"total_display":"52,247.29","total_whole":"52,247","shares_owned_after":8302999.0,"shares_owned_after_display":"8,302,999","ownership_form":"I","is_10b5_1":null,"transaction_date":"2022-05-23","filed_date":"2022-05-23","scope":"insider"},{"id":6089157,"accession":"0000899243-22-019274","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0000899243-22-019274","line_url":"/filing/0000899243-22-019274#line-2","is_derivative":false,"issuer_cik":"0001442836","issuer_name":"Mersana Therapeutics, Inc.","issuer_ticker":"MRSN","issuer_name_source":null,"issuer_url":"/issuer/0001442836","owner_cik":"0001657434","owner_name":"Hack Andrew A. F.","owner_display_name":"Hack Andrew A. F.","owner_url":"/insider/0001657434","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":100000.0,"shares_display":"100,000","price_per_share":3.4557,"price_display":"3.46","price_state":"stated","total_value":345570.0,"total_display":"345,570.00","total_whole":"345,570","shares_owned_after":8287400.0,"shares_owned_after_display":"8,287,400","ownership_form":"I","is_10b5_1":null,"transaction_date":"2022-05-20","filed_date":"2022-05-23","scope":"insider"},{"id":6089152,"accession":"0000899243-22-019274","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0000899243-22-019274","line_url":"/filing/0000899243-22-019274#line-1","is_derivative":false,"issuer_cik":"0001442836","issuer_name":"Mersana Therapeutics, Inc.","issuer_ticker":"MRSN","issuer_name_source":null,"issuer_url":"/issuer/0001442836","owner_cik":"0001657434","owner_name":"Hack Andrew A. F.","owner_display_name":"Hack Andrew A. F.","owner_url":"/insider/0001657434","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":100000.0,"shares_display":"100,000","price_per_share":3.4862,"price_display":"3.49","price_state":"stated","total_value":348620.0,"total_display":"348,620.00","total_whole":"348,620","shares_owned_after":8187400.0,"shares_owned_after_display":"8,187,400","ownership_form":"I","is_10b5_1":null,"transaction_date":"2022-05-19","filed_date":"2022-05-23","scope":"insider"},{"id":6691237,"accession":"0000899243-22-018652","txn_seq":3,"anchor":"line-3","filing_url":"/filing/0000899243-22-018652","line_url":"/filing/0000899243-22-018652#line-3","is_derivative":false,"issuer_cik":"0001442836","issuer_name":"Mersana Therapeutics, Inc.","issuer_ticker":"MRSN","issuer_name_source":null,"issuer_url":"/issuer/0001442836","owner_cik":"0001657434","owner_name":"Hack Andrew A. F.","owner_display_name":"Hack Andrew A. F.","owner_url":"/insider/0001657434","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":211268.0,"shares_display":"211,268","price_per_share":3.3477,"price_display":"3.35","price_state":"stated","total_value":707261.8836,"total_display":"707,261.88","total_whole":"707,262","shares_owned_after":8087400.0,"shares_owned_after_display":"8,087,400","ownership_form":"I","is_10b5_1":null,"transaction_date":"2022-05-18","filed_date":"2022-05-18","scope":"insider"},{"id":6691235,"accession":"0000899243-22-018652","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0000899243-22-018652","line_url":"/filing/0000899243-22-018652#line-2","is_derivative":false,"issuer_cik":"0001442836","issuer_name":"Mersana Therapeutics, Inc.","issuer_ticker":"MRSN","issuer_name_source":null,"issuer_url":"/issuer/0001442836","owner_cik":"0001657434","owner_name":"Hack Andrew A. F.","owner_display_name":"Hack Andrew A. F.","owner_url":"/insider/0001657434","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":3440.0,"shares_display":"3,440","price_per_share":3.1838,"price_display":"3.18","price_state":"stated","total_value":10952.272,"total_display":"10,952.27","total_whole":"10,952","shares_owned_after":7876132.0,"shares_owned_after_display":"7,876,132","ownership_form":"I","is_10b5_1":null,"transaction_date":"2022-05-17","filed_date":"2022-05-18","scope":"insider"},{"id":6691233,"accession":"0000899243-22-018652","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0000899243-22-018652","line_url":"/filing/0000899243-22-018652#line-1","is_derivative":false,"issuer_cik":"0001442836","issuer_name":"Mersana Therapeutics, Inc.","issuer_ticker":"MRSN","issuer_name_source":null,"issuer_url":"/issuer/0001442836","owner_cik":"0001657434","owner_name":"Hack Andrew A. F.","owner_display_name":"Hack Andrew A. F.","owner_url":"/insider/0001657434","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":135292.0,"shares_display":"135,292","price_per_share":3.1003,"price_display":"3.10","price_state":"stated","total_value":419445.7876,"total_display":"419,445.79","total_whole":"419,446","shares_owned_after":7872692.0,"shares_owned_after_display":"7,872,692","ownership_form":"I","is_10b5_1":null,"transaction_date":"2022-05-16","filed_date":"2022-05-18","scope":"insider"},{"id":6620110,"accession":"0000899243-22-014811","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0000899243-22-014811","line_url":"/filing/0000899243-22-014811#line-1","is_derivative":false,"issuer_cik":"0001442836","issuer_name":"Mersana Therapeutics, Inc.","issuer_ticker":"MRSN","issuer_name_source":null,"issuer_url":"/issuer/0001442836","owner_cik":"0001657434","owner_name":"Hack Andrew A. F.","owner_display_name":"Hack Andrew A. F.","owner_url":"/insider/0001657434","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":617284.0,"shares_display":"617,284","price_per_share":4.05,"price_display":"4.05","price_state":"stated","total_value":2500000.2,"total_display":"2,500,000.20","total_whole":"2,500,000","shares_owned_after":7737400.0,"shares_owned_after_display":"7,737,400","ownership_form":"I","is_10b5_1":null,"transaction_date":"2022-04-13","filed_date":"2022-04-14","scope":"insider"},{"id":6914077,"accession":"0000899243-22-014730","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0000899243-22-014730","line_url":"/filing/0000899243-22-014730#line-1","is_derivative":false,"issuer_cik":"0001442836","issuer_name":"Mersana Therapeutics, Inc.","issuer_ticker":"MRSN","issuer_name_source":null,"issuer_url":"/issuer/0001442836","owner_cik":"0001657434","owner_name":"Hack Andrew A. F.","owner_display_name":"Hack Andrew A. F.","owner_url":"/insider/0001657434","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":598086.0,"shares_display":"598,086","price_per_share":4.1798,"price_display":"4.18","price_state":"stated","total_value":2499879.8628,"total_display":"2,499,879.86","total_whole":"2,499,880","shares_owned_after":7120116.0,"shares_owned_after_display":"7,120,116","ownership_form":"I","is_10b5_1":null,"transaction_date":"2022-04-12","filed_date":"2022-04-13","scope":"insider"},{"id":6385170,"accession":"0000899243-22-005224","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0000899243-22-005224","line_url":"/filing/0000899243-22-005224#line-1","is_derivative":false,"issuer_cik":"0001442836","issuer_name":"Mersana Therapeutics, Inc.","issuer_ticker":"MRSN","issuer_name_source":null,"issuer_url":"/issuer/0001442836","owner_cik":"0001657434","owner_name":"Hack Andrew A. F.","owner_display_name":"Hack Andrew A. F.","owner_url":"/insider/0001657434","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":1136363.0,"shares_display":"1,136,363","price_per_share":4.42,"price_display":"4.42","price_state":"stated","total_value":5022724.46,"total_display":"5,022,724.46","total_whole":"5,022,724","shares_owned_after":6522030.0,"shares_owned_after_display":"6,522,030","ownership_form":"I","is_10b5_1":null,"transaction_date":"2022-02-07","filed_date":"2022-02-08","scope":"insider"},{"id":6587293,"accession":"0000899243-22-000588","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0000899243-22-000588","line_url":"/filing/0000899243-22-000588#line-1","is_derivative":false,"issuer_cik":"0001442836","issuer_name":"Mersana Therapeutics, Inc.","issuer_ticker":"MRSN","issuer_name_source":null,"issuer_url":"/issuer/0001442836","owner_cik":"0001657434","owner_name":"Hack Andrew A. F.","owner_display_name":"Hack Andrew A. F.","owner_url":"/insider/0001657434","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":815000.0,"shares_display":"815,000","price_per_share":6.15,"price_display":"6.15","price_state":"stated","total_value":5012250.0,"total_display":"5,012,250.00","total_whole":"5,012,250","shares_owned_after":5385667.0,"shares_owned_after_display":"5,385,667","ownership_form":"I","is_10b5_1":null,"transaction_date":"2021-12-30","filed_date":"2022-01-04","scope":"insider"},{"id":6669635,"accession":"0000899243-22-000158","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0000899243-22-000158","line_url":"/filing/0000899243-22-000158#line-1","is_derivative":false,"issuer_cik":"0001442836","issuer_name":"Mersana Therapeutics, Inc.","issuer_ticker":"MRSN","issuer_name_source":null,"issuer_url":"/issuer/0001442836","owner_cik":"0001657434","owner_name":"Hack Andrew A. F.","owner_display_name":"Hack Andrew A. F.","owner_url":"/insider/0001657434","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":875000.0,"shares_display":"875,000","price_per_share":5.75,"price_display":"5.75","price_state":"stated","total_value":5031250.0,"total_display":"5,031,250.00","total_whole":"5,031,250","shares_owned_after":4570667.0,"shares_owned_after_display":"4,570,667","ownership_form":"I","is_10b5_1":null,"transaction_date":"2021-12-29","filed_date":"2022-01-03","scope":"insider"},{"id":4975145,"accession":"0000899243-21-034455","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0000899243-21-034455","line_url":"/filing/0000899243-21-034455#line-2","is_derivative":false,"issuer_cik":"0001029142","issuer_name":"DYNAVAX TECHNOLOGIES CORP","issuer_ticker":"DVAX","issuer_name_source":null,"issuer_url":"/issuer/0001029142","owner_cik":"0001657434","owner_name":"Hack Andrew A. F.","owner_display_name":"Hack Andrew A. F.","owner_url":"/insider/0001657434","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":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":2000000.0,"shares_display":"2,000,000","price_per_share":16.22,"price_display":"16.22","price_state":"stated","total_value":32440000.0,"total_display":"32,440,000.00","total_whole":"32,440,000","shares_owned_after":8415000.0,"shares_owned_after_display":"8,415,000","ownership_form":"I","is_10b5_1":null,"transaction_date":"2021-08-27","filed_date":"2021-08-27","scope":"insider"},{"id":4087874,"accession":"0000899243-21-032571","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0000899243-21-032571","line_url":"/filing/0000899243-21-032571#line-2","is_derivative":false,"issuer_cik":"0001029142","issuer_name":"DYNAVAX TECHNOLOGIES CORP","issuer_ticker":"DVAX","issuer_name_source":null,"issuer_url":"/issuer/0001029142","owner_cik":"0001657434","owner_name":"Hack Andrew A. F.","owner_display_name":"Hack Andrew A. F.","owner_url":"/insider/0001657434","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":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":2250000.0,"shares_display":"2,250,000","price_per_share":10.8,"price_display":"10.80","price_state":"stated","total_value":24300000.0,"total_display":"24,300,000.00","total_whole":"24,300,000","shares_owned_after":8524000.0,"shares_owned_after_display":"8,524,000","ownership_form":"I","is_10b5_1":null,"transaction_date":"2021-08-09","filed_date":"2021-08-11","scope":"insider"},{"id":4868426,"accession":"0000899243-21-031627","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0000899243-21-031627","line_url":"/filing/0000899243-21-031627#line-2","is_derivative":false,"issuer_cik":"0001657434","issuer_name":"Nuvalent, Inc.","issuer_ticker":"NUVL","issuer_name_source":null,"issuer_url":"/issuer/0001657434","owner_cik":"0001657434","owner_name":"Hack Andrew A. F.","owner_display_name":"Hack Andrew A. F.","owner_url":"/insider/0001657434","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":"Class A Common Stock","transaction_code":"P","transaction_label":"Open-market purchase","open_market":true,"acquired_disposed":"A","direction_word":"acquired","shares":735000.0,"shares_display":"735,000","price_per_share":17.0,"price_display":"17.00","price_state":"stated","total_value":12495000.0,"total_display":"12,495,000.00","total_whole":"12,495,000","shares_owned_after":3428014.0,"shares_owned_after_display":"3,428,014","ownership_form":"I","is_10b5_1":null,"transaction_date":"2021-08-02","filed_date":"2021-08-04","scope":"insider"},{"id":4161967,"accession":"0000899243-21-001552","txn_seq":3,"anchor":"line-3","filing_url":"/filing/0000899243-21-001552","line_url":"/filing/0000899243-21-001552#line-3","is_derivative":false,"issuer_cik":"0001442836","issuer_name":"Mersana Therapeutics, Inc.","issuer_ticker":"MRSN","issuer_name_source":null,"issuer_url":"/issuer/0001442836","owner_cik":"0001657434","owner_name":"Hack Andrew A. F.","owner_display_name":"Hack Andrew A. F.","owner_url":"/insider/0001657434","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":75000.0,"shares_display":"75,000","price_per_share":18.16,"price_display":"18.16","price_state":"stated","total_value":1362000.0,"total_display":"1,362,000.00","total_whole":"1,362,000","shares_owned_after":3695667.0,"shares_owned_after_display":"3,695,667","ownership_form":"I","is_10b5_1":null,"transaction_date":"2021-01-12","filed_date":"2021-01-12","scope":"insider"},{"id":4161964,"accession":"0000899243-21-001552","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0000899243-21-001552","line_url":"/filing/0000899243-21-001552#line-2","is_derivative":false,"issuer_cik":"0001442836","issuer_name":"Mersana Therapeutics, Inc.","issuer_ticker":"MRSN","issuer_name_source":null,"issuer_url":"/issuer/0001442836","owner_cik":"0001657434","owner_name":"Hack Andrew A. F.","owner_display_name":"Hack Andrew A. F.","owner_url":"/insider/0001657434","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":75000.0,"shares_display":"75,000","price_per_share":18.52,"price_display":"18.52","price_state":"stated","total_value":1389000.0,"total_display":"1,389,000.00","total_whole":"1,389,000","shares_owned_after":3620667.0,"shares_owned_after_display":"3,620,667","ownership_form":"I","is_10b5_1":null,"transaction_date":"2021-01-11","filed_date":"2021-01-12","scope":"insider"},{"id":4161960,"accession":"0000899243-21-001552","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0000899243-21-001552","line_url":"/filing/0000899243-21-001552#line-1","is_derivative":false,"issuer_cik":"0001442836","issuer_name":"Mersana Therapeutics, Inc.","issuer_ticker":"MRSN","issuer_name_source":null,"issuer_url":"/issuer/0001442836","owner_cik":"0001657434","owner_name":"Hack Andrew A. F.","owner_display_name":"Hack Andrew A. F.","owner_url":"/insider/0001657434","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":100000.0,"shares_display":"100,000","price_per_share":18.39,"price_display":"18.39","price_state":"stated","total_value":1839000.0,"total_display":"1,839,000.00","total_whole":"1,839,000","shares_owned_after":3545667.0,"shares_owned_after_display":"3,545,667","ownership_form":"I","is_10b5_1":null,"transaction_date":"2021-01-08","filed_date":"2021-01-12","scope":"insider"},{"id":3239895,"accession":"0000899243-20-030340","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0000899243-20-030340","line_url":"/filing/0000899243-20-030340#line-2","is_derivative":false,"issuer_cik":"0001593899","issuer_name":"Atea Pharmaceuticals, Inc.","issuer_ticker":"AVIR","issuer_name_source":null,"issuer_url":"/issuer/0001593899","owner_cik":"0001657434","owner_name":"Hack Andrew A. F.","owner_display_name":"Hack Andrew A. F.","owner_url":"/insider/0001657434","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":250000.0,"shares_display":"250,000","price_per_share":24.0,"price_display":"24.00","price_state":"stated","total_value":6000000.0,"total_display":"6,000,000.00","total_whole":"6,000,000","shares_owned_after":5615659.0,"shares_owned_after_display":"5,615,659","ownership_form":"I","is_10b5_1":null,"transaction_date":"2020-11-03","filed_date":"2020-11-03","scope":"insider"},{"id":3276278,"accession":"0000899243-20-014431","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0000899243-20-014431","line_url":"/filing/0000899243-20-014431#line-1","is_derivative":false,"issuer_cik":"0001029142","issuer_name":"DYNAVAX TECHNOLOGIES CORP","issuer_ticker":"DVAX","issuer_name_source":null,"issuer_url":"/issuer/0001029142","owner_cik":"0001657434","owner_name":"Hack Andrew A. F.","owner_display_name":"Hack Andrew A. F.","owner_url":"/insider/0001657434","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":1000000.0,"shares_display":"1,000,000","price_per_share":5.0,"price_display":"5.00","price_state":"stated","total_value":5000000.0,"total_display":"5,000,000.00","total_whole":"5,000,000","shares_owned_after":8525000.0,"shares_owned_after_display":"8,525,000","ownership_form":"I","is_10b5_1":null,"transaction_date":"2020-05-27","filed_date":"2020-05-28","scope":"insider"},{"id":2057514,"accession":"0000899243-20-010592","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0000899243-20-010592","line_url":"/filing/0000899243-20-010592","is_derivative":false,"issuer_cik":"0001442836","issuer_name":"Mersana Therapeutics, Inc.","issuer_ticker":"MRSN","issuer_name_source":null,"issuer_url":"/issuer/0001442836","owner_cik":"0001657434","owner_name":"Hack Andrew A. F.","owner_display_name":"Hack Andrew A. F.","owner_url":"/insider/0001657434","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":3445667.0,"shares_display":"3,445,667","price_per_share":5.992878180044676,"price_display":"5.99","price_state":"stated","total_value":20649462.58,"total_display":"20,649,462.58","total_whole":"20,649,463","shares_owned_after":2800000.0,"shares_owned_after_display":"2,800,000","ownership_form":"I","is_10b5_1":null,"transaction_date":"2020-04-07","filed_date":"2020-04-09","scope":"insider","n_lines":2},{"id":8642418,"accession":"0001179110-19-001436","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001179110-19-001436","line_url":"/filing/0001179110-19-001436#line-2","is_derivative":false,"issuer_cik":"0001650664","issuer_name":"Editas Medicine, Inc.","issuer_ticker":"EDIT","issuer_name_source":null,"issuer_url":"/issuer/0001650664","owner_cik":"0001657434","owner_name":"Hack Andrew A. F.","owner_display_name":"Hack Andrew A. F.","owner_url":"/insider/0001657434","role":"Officer (Chief Financial Officer)","role_mark":"O","role_mark_label":"Officer (Chief Financial Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Financial Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":6895.0,"shares_display":"6,895","price_per_share":21.39,"price_display":"21.39","price_state":"stated","total_value":147484.05,"total_display":"147,484.05","total_whole":"147,484","shares_owned_after":0.0,"shares_owned_after_display":"0","ownership_form":"D","is_10b5_1":null,"transaction_date":"2019-02-04","filed_date":"2019-02-06","scope":"insider"},{"id":8448467,"accession":"0001179110-19-000578","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001179110-19-000578","line_url":"/filing/0001179110-19-000578#line-2","is_derivative":false,"issuer_cik":"0001650664","issuer_name":"Editas Medicine, Inc.","issuer_ticker":"EDIT","issuer_name_source":null,"issuer_url":"/issuer/0001650664","owner_cik":"0001657434","owner_name":"Hack Andrew A. F.","owner_display_name":"Hack Andrew A. F.","owner_url":"/insider/0001657434","role":"Officer (Chief Financial Officer)","role_mark":"O","role_mark_label":"Officer (Chief Financial Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Financial Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":7000.0,"shares_display":"7,000","price_per_share":22.48,"price_display":"22.48","price_state":"stated","total_value":157360.0,"total_display":"157,360.00","total_whole":"157,360","shares_owned_after":0.0,"shares_owned_after_display":"0","ownership_form":"D","is_10b5_1":null,"transaction_date":"2019-01-04","filed_date":"2019-01-08","scope":"insider"},{"id":6136843,"accession":"0001179110-18-013245","txn_seq":3,"anchor":"line-3","filing_url":"/filing/0001179110-18-013245","line_url":"/filing/0001179110-18-013245","is_derivative":false,"issuer_cik":"0001650664","issuer_name":"Editas Medicine, Inc.","issuer_ticker":"EDIT","issuer_name_source":null,"issuer_url":"/issuer/0001650664","owner_cik":"0001657434","owner_name":"Hack Andrew A. F.","owner_display_name":"Hack Andrew A. F.","owner_url":"/insider/0001657434","role":"Officer (Chief Financial Officer)","role_mark":"O","role_mark_label":"Officer (Chief Financial Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Financial Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":5284.0,"shares_display":"5,284","price_per_share":28.14889477668433,"price_display":"28.15","price_state":"stated","total_value":148738.76,"total_display":"148,738.76","total_whole":"148,739","shares_owned_after":100.0,"shares_owned_after_display":"100","ownership_form":"D","is_10b5_1":null,"transaction_date":"2018-11-23","filed_date":"2018-11-27","scope":"insider","n_lines":2},{"id":6795176,"accession":"0001179110-18-012390","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001179110-18-012390","line_url":"/filing/0001179110-18-012390#line-2","is_derivative":false,"issuer_cik":"0001650664","issuer_name":"Editas Medicine, Inc.","issuer_ticker":"EDIT","issuer_name_source":null,"issuer_url":"/issuer/0001650664","owner_cik":"0001657434","owner_name":"Hack Andrew A. F.","owner_display_name":"Hack Andrew A. F.","owner_url":"/insider/0001657434","role":"Officer (Chief Financial Officer)","role_mark":"O","role_mark_label":"Officer (Chief Financial Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Financial Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":6000.0,"shares_display":"6,000","price_per_share":25.7,"price_display":"25.70","price_state":"stated","total_value":154200.0,"total_display":"154,200.00","total_whole":"154,200","shares_owned_after":0.0,"shares_owned_after_display":"0","ownership_form":"D","is_10b5_1":null,"transaction_date":"2018-10-26","filed_date":"2018-10-30","scope":"insider"},{"id":6312943,"accession":"0001179110-18-011848","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001179110-18-011848","line_url":"/filing/0001179110-18-011848#line-2","is_derivative":false,"issuer_cik":"0001650664","issuer_name":"Editas Medicine, Inc.","issuer_ticker":"EDIT","issuer_name_source":null,"issuer_url":"/issuer/0001650664","owner_cik":"0001657434","owner_name":"Hack Andrew A. F.","owner_display_name":"Hack Andrew A. F.","owner_url":"/insider/0001657434","role":"Officer (Chief Financial Officer)","role_mark":"O","role_mark_label":"Officer (Chief Financial Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Financial Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":8000.0,"shares_display":"8,000","price_per_share":32.08,"price_display":"32.08","price_state":"stated","total_value":256640.0,"total_display":"256,640.00","total_whole":"256,640","shares_owned_after":0.0,"shares_owned_after_display":"0","ownership_form":"D","is_10b5_1":null,"transaction_date":"2018-09-28","filed_date":"2018-10-02","scope":"insider"},{"id":6579551,"accession":"0001182489-18-000336","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001182489-18-000336","line_url":"/filing/0001182489-18-000336#line-2","is_derivative":false,"issuer_cik":"0001650664","issuer_name":"Editas Medicine, Inc.","issuer_ticker":"EDIT","issuer_name_source":null,"issuer_url":"/issuer/0001650664","owner_cik":"0001657434","owner_name":"Hack Andrew A. F.","owner_display_name":"Hack Andrew A. F.","owner_url":"/insider/0001657434","role":"Officer (Chief Financial Officer)","role_mark":"O","role_mark_label":"Officer (Chief Financial Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Financial Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":10000.0,"shares_display":"10,000","price_per_share":32.23,"price_display":"32.23","price_state":"stated","total_value":322300.0,"total_display":"322,300.00","total_whole":"322,300","shares_owned_after":0.0,"shares_owned_after_display":"0","ownership_form":"D","is_10b5_1":null,"transaction_date":"2018-08-31","filed_date":"2018-09-05","scope":"insider"},{"id":6594818,"accession":"0001179110-18-008052","txn_seq":6,"anchor":"line-6","filing_url":"/filing/0001179110-18-008052","line_url":"/filing/0001179110-18-008052#line-6","is_derivative":false,"issuer_cik":"0001650664","issuer_name":"Editas Medicine, Inc.","issuer_ticker":"EDIT","issuer_name_source":null,"issuer_url":"/issuer/0001650664","owner_cik":"0001657434","owner_name":"Hack Andrew A. F.","owner_display_name":"Hack Andrew A. F.","owner_url":"/insider/0001657434","role":"Officer (Chief Financial Officer)","role_mark":"O","role_mark_label":"Officer (Chief Financial Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Financial Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":3000.0,"shares_display":"3,000","price_per_share":37.1,"price_display":"37.10","price_state":"stated","total_value":111300.0,"total_display":"111,300.00","total_whole":"111,300","shares_owned_after":0.0,"shares_owned_after_display":"0","ownership_form":"D","is_10b5_1":null,"transaction_date":"2018-06-04","filed_date":"2018-06-05","scope":"insider"},{"id":6594813,"accession":"0001179110-18-008052","txn_seq":4,"anchor":"line-4","filing_url":"/filing/0001179110-18-008052","line_url":"/filing/0001179110-18-008052","is_derivative":false,"issuer_cik":"0001650664","issuer_name":"Editas Medicine, Inc.","issuer_ticker":"EDIT","issuer_name_source":null,"issuer_url":"/issuer/0001650664","owner_cik":"0001657434","owner_name":"Hack Andrew A. F.","owner_display_name":"Hack Andrew A. F.","owner_url":"/insider/0001657434","role":"Officer (Chief Financial Officer)","role_mark":"O","role_mark_label":"Officer (Chief Financial Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Financial Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":7000.0,"shares_display":"7,000","price_per_share":39.28142857142857,"price_display":"39.28","price_state":"stated","total_value":274970.0,"total_display":"274,970.00","total_whole":"274,970","shares_owned_after":0.0,"shares_owned_after_display":"0","ownership_form":"D","is_10b5_1":null,"transaction_date":"2018-06-01","filed_date":"2018-06-05","scope":"insider","n_lines":2},{"id":6893510,"accession":"0001179110-18-004702","txn_seq":10,"anchor":"line-10","filing_url":"/filing/0001179110-18-004702","line_url":"/filing/0001179110-18-004702","is_derivative":false,"issuer_cik":"0001650664","issuer_name":"Editas Medicine, Inc.","issuer_ticker":"EDIT","issuer_name_source":null,"issuer_url":"/issuer/0001650664","owner_cik":"0001657434","owner_name":"Hack Andrew A. F.","owner_display_name":"Hack Andrew A. F.","owner_url":"/insider/0001657434","role":"Officer (Chief Financial Officer)","role_mark":"O","role_mark_label":"Officer (Chief Financial Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Financial Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":28000.0,"shares_display":"28,000","price_per_share":37.855714285714285,"price_display":"37.86","price_state":"stated","total_value":1059960.0,"total_display":"1,059,960.00","total_whole":"1,059,960","shares_owned_after":0.0,"shares_owned_after_display":"0","ownership_form":"D","is_10b5_1":null,"transaction_date":"2018-03-20","filed_date":"2018-03-20","scope":"insider","n_lines":3},{"id":6893479,"accession":"0001179110-18-004702","txn_seq":4,"anchor":"line-4","filing_url":"/filing/0001179110-18-004702","line_url":"/filing/0001179110-18-004702#line-4","is_derivative":false,"issuer_cik":"0001650664","issuer_name":"Editas Medicine, Inc.","issuer_ticker":"EDIT","issuer_name_source":null,"issuer_url":"/issuer/0001650664","owner_cik":"0001657434","owner_name":"Hack Andrew A. F.","owner_display_name":"Hack Andrew A. F.","owner_url":"/insider/0001657434","role":"Officer (Chief Financial Officer)","role_mark":"O","role_mark_label":"Officer (Chief Financial Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Financial Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":6000.0,"shares_display":"6,000","price_per_share":37.65,"price_display":"37.65","price_state":"stated","total_value":225900.0,"total_display":"225,900.00","total_whole":"225,900","shares_owned_after":0.0,"shares_owned_after_display":"0","ownership_form":"D","is_10b5_1":null,"transaction_date":"2018-03-19","filed_date":"2018-03-20","scope":"insider"},{"id":6893472,"accession":"0001179110-18-004702","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001179110-18-004702","line_url":"/filing/0001179110-18-004702#line-2","is_derivative":false,"issuer_cik":"0001650664","issuer_name":"Editas Medicine, Inc.","issuer_ticker":"EDIT","issuer_name_source":null,"issuer_url":"/issuer/0001650664","owner_cik":"0001657434","owner_name":"Hack Andrew A. F.","owner_display_name":"Hack Andrew A. F.","owner_url":"/insider/0001657434","role":"Officer (Chief Financial Officer)","role_mark":"O","role_mark_label":"Officer (Chief Financial Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Financial Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":6000.0,"shares_display":"6,000","price_per_share":39.43,"price_display":"39.43","price_state":"stated","total_value":236580.0,"total_display":"236,580.00","total_whole":"236,580","shares_owned_after":0.0,"shares_owned_after_display":"0","ownership_form":"D","is_10b5_1":null,"transaction_date":"2018-03-16","filed_date":"2018-03-20","scope":"insider"}],"collapsed":true,"next_cursor":"2018-03-16|6893472","ledger_fault":false,"count":{"value":60,"kind":"exact"},"open_market_only":false,"composition":{"kind":"exact","rows":[{"code":"P","label":"Open-market purchase","n":25,"open_market":true},{"code":"S","label":"Open-market sale","n":35,"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":60},"affiliations":[{"type":"issuer","type_label":"ISSUER","cik":"0001861560","name":"Nuvalent, Inc.","url":"/issuer/0001861560","role":"Director","n_filings":4,"first_seen":"2021-08-04","last_seen":"2024-12-13"},{"type":"issuer","type_label":"ISSUER","cik":"0001029142","name":"DYNAVAX TECHNOLOGIES CORP","url":"/issuer/0001029142","role":"Director","n_filings":8,"first_seen":"2020-05-28","last_seen":"2023-08-10"},{"type":"issuer","type_label":"ISSUER","cik":"0001442836","name":"Mersana Therapeutics, Inc.","url":"/issuer/0001442836","role":"Director","n_filings":11,"first_seen":"2020-04-09","last_seen":"2022-06-02"},{"type":"issuer","type_label":"ISSUER","cik":"0001593899","name":"Atea Pharmaceuticals, Inc.","url":"/issuer/0001593899","role":"Director","n_filings":1,"first_seen":"2020-11-03","last_seen":"2020-11-03"},{"type":"issuer","type_label":"ISSUER","cik":"0001650664","name":"Editas Medicine, Inc.","url":"/issuer/0001650664","role":"Officer (Chief Financial Officer)","n_filings":13,"first_seen":"2017-01-13","last_seen":"2019-02-06"}],"order_statement":"Newest transaction date first, id breaking the tie.","canonical_url":"https://ebomi.com/insider/0001657434","retrieved_at":"2026-08-27T00:46:22+00:00","coverage":{"filings":1506293,"transactions":4290787,"issuers":28597,"insiders":152303,"first_filed_date":"2003-06-30","last_filed_date":"2026-08-25","last_ingest":"2026-08-26T05:24:25.741053+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"}}