{"entity":{"type":"insider","cik":"0001813574","url":"/insider/0001813574","json_url":"/insider/0001813574.json","name":"Valliant John","name_source":"as-filed","also_issuer":false,"cross_url":null},"coverage_statement":{"n_transactions":45,"n_filings":16,"first":"2022-02-17","last":"2022-04-27","span_basis":"filed_date"},"name_variants":[{"name":"Valliant John","source":"filing","n_filings":16,"first_seen":"2022-02-17","last_seen":"2022-04-27"}],"transactions":[{"id":6205639,"accession":"0001209191-22-025783","txn_seq":3,"anchor":"line-3","filing_url":"/filing/0001209191-22-025783","line_url":"/filing/0001209191-22-025783#line-3","is_derivative":false,"issuer_cik":"0001805890","issuer_name":"Fusion Pharmaceuticals Inc.","issuer_ticker":"FUSN","issuer_name_source":null,"issuer_url":"/issuer/0001805890","owner_cik":"0001813574","owner_name":"Valliant John","owner_display_name":"Valliant John","owner_url":"/insider/0001813574","role":"Director, Officer (Chief Executive Officer)","role_mark":"D","role_mark_label":"Director","role_mark_generic":"Director","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Executive Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":4511.0,"shares_display":"4,511","price_per_share":6.03,"price_display":"6.03","price_state":"stated","total_value":27201.33,"total_display":"27,201.33","total_whole":"27,201","shares_owned_after":318147.0,"shares_owned_after_display":"318,147","ownership_form":"D","is_10b5_1":null,"transaction_date":"2022-04-27","filed_date":"2022-04-27","scope":"insider"},{"id":6205635,"accession":"0001209191-22-025783","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001209191-22-025783","line_url":"/filing/0001209191-22-025783#line-2","is_derivative":false,"issuer_cik":"0001805890","issuer_name":"Fusion Pharmaceuticals Inc.","issuer_ticker":"FUSN","issuer_name_source":null,"issuer_url":"/issuer/0001805890","owner_cik":"0001813574","owner_name":"Valliant John","owner_display_name":"Valliant John","owner_url":"/insider/0001813574","role":"Director, Officer (Chief Executive Officer)","role_mark":"D","role_mark_label":"Director","role_mark_generic":"Director","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Executive Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":2147.0,"shares_display":"2,147","price_per_share":6.07,"price_display":"6.07","price_state":"stated","total_value":13032.29,"total_display":"13,032.29","total_whole":"13,032","shares_owned_after":322658.0,"shares_owned_after_display":"322,658","ownership_form":"D","is_10b5_1":null,"transaction_date":"2022-04-26","filed_date":"2022-04-27","scope":"insider"},{"id":6205632,"accession":"0001209191-22-025783","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001209191-22-025783","line_url":"/filing/0001209191-22-025783#line-1","is_derivative":false,"issuer_cik":"0001805890","issuer_name":"Fusion Pharmaceuticals Inc.","issuer_ticker":"FUSN","issuer_name_source":null,"issuer_url":"/issuer/0001805890","owner_cik":"0001813574","owner_name":"Valliant John","owner_display_name":"Valliant John","owner_url":"/insider/0001813574","role":"Director, Officer (Chief Executive Officer)","role_mark":"D","role_mark_label":"Director","role_mark_generic":"Director","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Executive Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":2036.0,"shares_display":"2,036","price_per_share":6.03,"price_display":"6.03","price_state":"stated","total_value":12277.08,"total_display":"12,277.08","total_whole":"12,277","shares_owned_after":324805.0,"shares_owned_after_display":"324,805","ownership_form":"D","is_10b5_1":null,"transaction_date":"2022-04-25","filed_date":"2022-04-27","scope":"insider"},{"id":6389981,"accession":"0001209191-22-025469","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001209191-22-025469","line_url":"/filing/0001209191-22-025469#line-2","is_derivative":false,"issuer_cik":"0001805890","issuer_name":"Fusion Pharmaceuticals Inc.","issuer_ticker":"FUSN","issuer_name_source":null,"issuer_url":"/issuer/0001805890","owner_cik":"0001813574","owner_name":"Valliant John","owner_display_name":"Valliant John","owner_url":"/insider/0001813574","role":"Director, Officer (Chief Executive Officer)","role_mark":"D","role_mark_label":"Director","role_mark_generic":"Director","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Executive Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":922.0,"shares_display":"922","price_per_share":6.01,"price_display":"6.01","price_state":"stated","total_value":5541.22,"total_display":"5,541.22","total_whole":"5,541","shares_owned_after":326841.0,"shares_owned_after_display":"326,841","ownership_form":"D","is_10b5_1":null,"transaction_date":"2022-04-21","filed_date":"2022-04-22","scope":"insider"},{"id":6389978,"accession":"0001209191-22-025469","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001209191-22-025469","line_url":"/filing/0001209191-22-025469#line-1","is_derivative":false,"issuer_cik":"0001805890","issuer_name":"Fusion Pharmaceuticals Inc.","issuer_ticker":"FUSN","issuer_name_source":null,"issuer_url":"/issuer/0001805890","owner_cik":"0001813574","owner_name":"Valliant John","owner_display_name":"Valliant John","owner_url":"/insider/0001813574","role":"Director, Officer (Chief Executive Officer)","role_mark":"D","role_mark_label":"Director","role_mark_generic":"Director","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Executive Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":367.0,"shares_display":"367","price_per_share":6.02,"price_display":"6.02","price_state":"stated","total_value":2209.34,"total_display":"2,209.34","total_whole":"2,209","shares_owned_after":327763.0,"shares_owned_after_display":"327,763","ownership_form":"D","is_10b5_1":null,"transaction_date":"2022-04-20","filed_date":"2022-04-22","scope":"insider"},{"id":6985259,"accession":"0001209191-22-024330","txn_seq":3,"anchor":"line-3","filing_url":"/filing/0001209191-22-024330","line_url":"/filing/0001209191-22-024330#line-3","is_derivative":false,"issuer_cik":"0001805890","issuer_name":"Fusion Pharmaceuticals Inc.","issuer_ticker":"FUSN","issuer_name_source":null,"issuer_url":"/issuer/0001805890","owner_cik":"0001813574","owner_name":"Valliant John","owner_display_name":"Valliant John","owner_url":"/insider/0001813574","role":"Director, Officer (Chief Executive Officer)","role_mark":"D","role_mark_label":"Director","role_mark_generic":"Director","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Executive Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":11994.0,"shares_display":"11,994","price_per_share":6.41,"price_display":"6.41","price_state":"stated","total_value":76881.54,"total_display":"76,881.54","total_whole":"76,882","shares_owned_after":328130.0,"shares_owned_after_display":"328,130","ownership_form":"D","is_10b5_1":null,"transaction_date":"2022-04-13","filed_date":"2022-04-13","scope":"insider"},{"id":6985257,"accession":"0001209191-22-024330","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001209191-22-024330","line_url":"/filing/0001209191-22-024330#line-2","is_derivative":false,"issuer_cik":"0001805890","issuer_name":"Fusion Pharmaceuticals Inc.","issuer_ticker":"FUSN","issuer_name_source":null,"issuer_url":"/issuer/0001805890","owner_cik":"0001813574","owner_name":"Valliant John","owner_display_name":"Valliant John","owner_url":"/insider/0001813574","role":"Director, Officer (Chief Executive Officer)","role_mark":"D","role_mark_label":"Director","role_mark_generic":"Director","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Executive Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":18255.0,"shares_display":"18,255","price_per_share":7.1,"price_display":"7.10","price_state":"stated","total_value":129610.5,"total_display":"129,610.50","total_whole":"129,611","shares_owned_after":340124.0,"shares_owned_after_display":"340,124","ownership_form":"D","is_10b5_1":null,"transaction_date":"2022-04-12","filed_date":"2022-04-13","scope":"insider"},{"id":6985252,"accession":"0001209191-22-024330","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001209191-22-024330","line_url":"/filing/0001209191-22-024330#line-1","is_derivative":false,"issuer_cik":"0001805890","issuer_name":"Fusion Pharmaceuticals Inc.","issuer_ticker":"FUSN","issuer_name_source":null,"issuer_url":"/issuer/0001805890","owner_cik":"0001813574","owner_name":"Valliant John","owner_display_name":"Valliant John","owner_url":"/insider/0001813574","role":"Director, Officer (Chief Executive Officer)","role_mark":"D","role_mark_label":"Director","role_mark_generic":"Director","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Executive Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":2600.0,"shares_display":"2,600","price_per_share":7.37,"price_display":"7.37","price_state":"stated","total_value":19162.0,"total_display":"19,162.00","total_whole":"19,162","shares_owned_after":358379.0,"shares_owned_after_display":"358,379","ownership_form":"D","is_10b5_1":null,"transaction_date":"2022-04-11","filed_date":"2022-04-13","scope":"insider"},{"id":6147734,"accession":"0001209191-22-023861","txn_seq":3,"anchor":"line-3","filing_url":"/filing/0001209191-22-023861","line_url":"/filing/0001209191-22-023861#line-3","is_derivative":false,"issuer_cik":"0001805890","issuer_name":"Fusion Pharmaceuticals Inc.","issuer_ticker":"FUSN","issuer_name_source":null,"issuer_url":"/issuer/0001805890","owner_cik":"0001813574","owner_name":"Valliant John","owner_display_name":"Valliant John","owner_url":"/insider/0001813574","role":"Director, Officer (Chief Executive Officer)","role_mark":"D","role_mark_label":"Director","role_mark_generic":"Director","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Executive Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":826.0,"shares_display":"826","price_per_share":7.52,"price_display":"7.52","price_state":"stated","total_value":6211.52,"total_display":"6,211.52","total_whole":"6,212","shares_owned_after":360979.0,"shares_owned_after_display":"360,979","ownership_form":"D","is_10b5_1":null,"transaction_date":"2022-04-08","filed_date":"2022-04-08","scope":"insider"},{"id":6147732,"accession":"0001209191-22-023861","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001209191-22-023861","line_url":"/filing/0001209191-22-023861#line-2","is_derivative":false,"issuer_cik":"0001805890","issuer_name":"Fusion Pharmaceuticals Inc.","issuer_ticker":"FUSN","issuer_name_source":null,"issuer_url":"/issuer/0001805890","owner_cik":"0001813574","owner_name":"Valliant John","owner_display_name":"Valliant John","owner_url":"/insider/0001813574","role":"Director, Officer (Chief Executive Officer)","role_mark":"D","role_mark_label":"Director","role_mark_generic":"Director","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Executive Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":1255.0,"shares_display":"1,255","price_per_share":7.56,"price_display":"7.56","price_state":"stated","total_value":9487.8,"total_display":"9,487.80","total_whole":"9,488","shares_owned_after":361805.0,"shares_owned_after_display":"361,805","ownership_form":"D","is_10b5_1":null,"transaction_date":"2022-04-07","filed_date":"2022-04-08","scope":"insider"},{"id":6147728,"accession":"0001209191-22-023861","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001209191-22-023861","line_url":"/filing/0001209191-22-023861#line-1","is_derivative":false,"issuer_cik":"0001805890","issuer_name":"Fusion Pharmaceuticals Inc.","issuer_ticker":"FUSN","issuer_name_source":null,"issuer_url":"/issuer/0001805890","owner_cik":"0001813574","owner_name":"Valliant John","owner_display_name":"Valliant John","owner_url":"/insider/0001813574","role":"Director, Officer (Chief Executive Officer)","role_mark":"D","role_mark_label":"Director","role_mark_generic":"Director","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Executive Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":100.0,"shares_display":"100","price_per_share":7.58,"price_display":"7.58","price_state":"stated","total_value":758.0,"total_display":"758.00","total_whole":"758","shares_owned_after":363060.0,"shares_owned_after_display":"363,060","ownership_form":"D","is_10b5_1":null,"transaction_date":"2022-04-06","filed_date":"2022-04-08","scope":"insider"},{"id":6205226,"accession":"0001209191-22-023124","txn_seq":3,"anchor":"line-3","filing_url":"/filing/0001209191-22-023124","line_url":"/filing/0001209191-22-023124#line-3","is_derivative":false,"issuer_cik":"0001805890","issuer_name":"Fusion Pharmaceuticals Inc.","issuer_ticker":"FUSN","issuer_name_source":null,"issuer_url":"/issuer/0001805890","owner_cik":"0001813574","owner_name":"Valliant John","owner_display_name":"Valliant John","owner_url":"/insider/0001813574","role":"Director, Officer (Chief Executive Officer)","role_mark":"D","role_mark_label":"Director","role_mark_generic":"Director","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Executive Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":2100.0,"shares_display":"2,100","price_per_share":7.67,"price_display":"7.67","price_state":"stated","total_value":16107.0,"total_display":"16,107.00","total_whole":"16,107","shares_owned_after":363160.0,"shares_owned_after_display":"363,160","ownership_form":"D","is_10b5_1":null,"transaction_date":"2022-04-05","filed_date":"2022-04-05","scope":"insider"},{"id":6205224,"accession":"0001209191-22-023124","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001209191-22-023124","line_url":"/filing/0001209191-22-023124#line-2","is_derivative":false,"issuer_cik":"0001805890","issuer_name":"Fusion Pharmaceuticals Inc.","issuer_ticker":"FUSN","issuer_name_source":null,"issuer_url":"/issuer/0001805890","owner_cik":"0001813574","owner_name":"Valliant John","owner_display_name":"Valliant John","owner_url":"/insider/0001813574","role":"Director, Officer (Chief Executive Officer)","role_mark":"D","role_mark_label":"Director","role_mark_generic":"Director","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Executive Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":700.0,"shares_display":"700","price_per_share":7.81,"price_display":"7.81","price_state":"stated","total_value":5467.0,"total_display":"5,467.00","total_whole":"5,467","shares_owned_after":365260.0,"shares_owned_after_display":"365,260","ownership_form":"D","is_10b5_1":null,"transaction_date":"2022-04-04","filed_date":"2022-04-05","scope":"insider"},{"id":6205219,"accession":"0001209191-22-023124","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001209191-22-023124","line_url":"/filing/0001209191-22-023124#line-1","is_derivative":false,"issuer_cik":"0001805890","issuer_name":"Fusion Pharmaceuticals Inc.","issuer_ticker":"FUSN","issuer_name_source":null,"issuer_url":"/issuer/0001805890","owner_cik":"0001813574","owner_name":"Valliant John","owner_display_name":"Valliant John","owner_url":"/insider/0001813574","role":"Director, Officer (Chief Executive Officer)","role_mark":"D","role_mark_label":"Director","role_mark_generic":"Director","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Executive Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":1000.0,"shares_display":"1,000","price_per_share":7.75,"price_display":"7.75","price_state":"stated","total_value":7750.0,"total_display":"7,750.00","total_whole":"7,750","shares_owned_after":365960.0,"shares_owned_after_display":"365,960","ownership_form":"D","is_10b5_1":null,"transaction_date":"2022-04-01","filed_date":"2022-04-05","scope":"insider"},{"id":6097841,"accession":"0001209191-22-022034","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001209191-22-022034","line_url":"/filing/0001209191-22-022034#line-1","is_derivative":false,"issuer_cik":"0001805890","issuer_name":"Fusion Pharmaceuticals Inc.","issuer_ticker":"FUSN","issuer_name_source":null,"issuer_url":"/issuer/0001805890","owner_cik":"0001813574","owner_name":"Valliant John","owner_display_name":"Valliant John","owner_url":"/insider/0001813574","role":"Director, Officer (Chief Executive Officer)","role_mark":"D","role_mark_label":"Director","role_mark_generic":"Director","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Executive Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":300.0,"shares_display":"300","price_per_share":7.52,"price_display":"7.52","price_state":"stated","total_value":2256.0,"total_display":"2,256.00","total_whole":"2,256","shares_owned_after":366960.0,"shares_owned_after_display":"366,960","ownership_form":"D","is_10b5_1":null,"transaction_date":"2022-03-30","filed_date":"2022-04-01","scope":"insider"},{"id":6147580,"accession":"0001209191-22-021487","txn_seq":3,"anchor":"line-3","filing_url":"/filing/0001209191-22-021487","line_url":"/filing/0001209191-22-021487#line-3","is_derivative":false,"issuer_cik":"0001805890","issuer_name":"Fusion Pharmaceuticals Inc.","issuer_ticker":"FUSN","issuer_name_source":null,"issuer_url":"/issuer/0001805890","owner_cik":"0001813574","owner_name":"Valliant John","owner_display_name":"Valliant John","owner_url":"/insider/0001813574","role":"Director, Officer (Chief Executive Officer)","role_mark":"D","role_mark_label":"Director","role_mark_generic":"Director","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Executive Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":200.0,"shares_display":"200","price_per_share":7.52,"price_display":"7.52","price_state":"stated","total_value":1504.0,"total_display":"1,504.00","total_whole":"1,504","shares_owned_after":367260.0,"shares_owned_after_display":"367,260","ownership_form":"D","is_10b5_1":null,"transaction_date":"2022-03-29","filed_date":"2022-03-29","scope":"insider"},{"id":6147577,"accession":"0001209191-22-021487","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001209191-22-021487","line_url":"/filing/0001209191-22-021487#line-2","is_derivative":false,"issuer_cik":"0001805890","issuer_name":"Fusion Pharmaceuticals Inc.","issuer_ticker":"FUSN","issuer_name_source":null,"issuer_url":"/issuer/0001805890","owner_cik":"0001813574","owner_name":"Valliant John","owner_display_name":"Valliant John","owner_url":"/insider/0001813574","role":"Director, Officer (Chief Executive Officer)","role_mark":"D","role_mark_label":"Director","role_mark_generic":"Director","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Executive Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":9600.0,"shares_display":"9,600","price_per_share":7.55,"price_display":"7.55","price_state":"stated","total_value":72480.0,"total_display":"72,480.00","total_whole":"72,480","shares_owned_after":367460.0,"shares_owned_after_display":"367,460","ownership_form":"D","is_10b5_1":null,"transaction_date":"2022-03-28","filed_date":"2022-03-29","scope":"insider"},{"id":6147574,"accession":"0001209191-22-021487","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001209191-22-021487","line_url":"/filing/0001209191-22-021487#line-1","is_derivative":false,"issuer_cik":"0001805890","issuer_name":"Fusion Pharmaceuticals Inc.","issuer_ticker":"FUSN","issuer_name_source":null,"issuer_url":"/issuer/0001805890","owner_cik":"0001813574","owner_name":"Valliant John","owner_display_name":"Valliant John","owner_url":"/insider/0001813574","role":"Director, Officer (Chief Executive Officer)","role_mark":"D","role_mark_label":"Director","role_mark_generic":"Director","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Executive Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":500.0,"shares_display":"500","price_per_share":7.42,"price_display":"7.42","price_state":"stated","total_value":3710.0,"total_display":"3,710.00","total_whole":"3,710","shares_owned_after":377060.0,"shares_owned_after_display":"377,060","ownership_form":"D","is_10b5_1":null,"transaction_date":"2022-03-25","filed_date":"2022-03-29","scope":"insider"},{"id":6205017,"accession":"0001209191-22-020948","txn_seq":3,"anchor":"line-3","filing_url":"/filing/0001209191-22-020948","line_url":"/filing/0001209191-22-020948#line-3","is_derivative":false,"issuer_cik":"0001805890","issuer_name":"Fusion Pharmaceuticals Inc.","issuer_ticker":"FUSN","issuer_name_source":null,"issuer_url":"/issuer/0001805890","owner_cik":"0001813574","owner_name":"Valliant John","owner_display_name":"Valliant John","owner_url":"/insider/0001813574","role":"Director, Officer (Chief Executive Officer)","role_mark":"D","role_mark_label":"Director","role_mark_generic":"Director","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Executive Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":100.0,"shares_display":"100","price_per_share":7.5,"price_display":"7.50","price_state":"stated","total_value":750.0,"total_display":"750.00","total_whole":"750","shares_owned_after":378260.0,"shares_owned_after_display":"378,260","ownership_form":"D","is_10b5_1":null,"transaction_date":"2022-03-23","filed_date":"2022-03-24","scope":"insider"},{"id":6205013,"accession":"0001209191-22-020948","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001209191-22-020948","line_url":"/filing/0001209191-22-020948#line-2","is_derivative":false,"issuer_cik":"0001805890","issuer_name":"Fusion Pharmaceuticals Inc.","issuer_ticker":"FUSN","issuer_name_source":null,"issuer_url":"/issuer/0001805890","owner_cik":"0001813574","owner_name":"Valliant John","owner_display_name":"Valliant John","owner_url":"/insider/0001813574","role":"Director, Officer (Chief Executive Officer)","role_mark":"D","role_mark_label":"Director","role_mark_generic":"Director","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Executive Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":4000.0,"shares_display":"4,000","price_per_share":7.53,"price_display":"7.53","price_state":"stated","total_value":30120.0,"total_display":"30,120.00","total_whole":"30,120","shares_owned_after":378360.0,"shares_owned_after_display":"378,360","ownership_form":"D","is_10b5_1":null,"transaction_date":"2022-03-22","filed_date":"2022-03-24","scope":"insider"},{"id":6572545,"accession":"0001209191-22-020316","txn_seq":3,"anchor":"line-3","filing_url":"/filing/0001209191-22-020316","line_url":"/filing/0001209191-22-020316#line-3","is_derivative":false,"issuer_cik":"0001805890","issuer_name":"Fusion Pharmaceuticals Inc.","issuer_ticker":"FUSN","issuer_name_source":null,"issuer_url":"/issuer/0001805890","owner_cik":"0001813574","owner_name":"Valliant John","owner_display_name":"Valliant John","owner_url":"/insider/0001813574","role":"Director, Officer (Chief Executive Officer)","role_mark":"D","role_mark_label":"Director","role_mark_generic":"Director","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Executive Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":1500.0,"shares_display":"1,500","price_per_share":7.47,"price_display":"7.47","price_state":"stated","total_value":11205.0,"total_display":"11,205.00","total_whole":"11,205","shares_owned_after":382360.0,"shares_owned_after_display":"382,360","ownership_form":"D","is_10b5_1":null,"transaction_date":"2022-03-21","filed_date":"2022-03-21","scope":"insider"},{"id":6205008,"accession":"0001209191-22-020948","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001209191-22-020948","line_url":"/filing/0001209191-22-020948#line-1","is_derivative":false,"issuer_cik":"0001805890","issuer_name":"Fusion Pharmaceuticals Inc.","issuer_ticker":"FUSN","issuer_name_source":null,"issuer_url":"/issuer/0001805890","owner_cik":"0001813574","owner_name":"Valliant John","owner_display_name":"Valliant John","owner_url":"/insider/0001813574","role":"Director, Officer (Chief Executive Officer)","role_mark":"D","role_mark_label":"Director","role_mark_generic":"Director","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Executive Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":700.0,"shares_display":"700","price_per_share":7.46,"price_display":"7.46","price_state":"stated","total_value":5222.0,"total_display":"5,222.00","total_whole":"5,222","shares_owned_after":377560.0,"shares_owned_after_display":"377,560","ownership_form":"D","is_10b5_1":null,"transaction_date":"2022-03-21","filed_date":"2022-03-24","scope":"insider"},{"id":6572542,"accession":"0001209191-22-020316","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001209191-22-020316","line_url":"/filing/0001209191-22-020316#line-2","is_derivative":false,"issuer_cik":"0001805890","issuer_name":"Fusion Pharmaceuticals Inc.","issuer_ticker":"FUSN","issuer_name_source":null,"issuer_url":"/issuer/0001805890","owner_cik":"0001813574","owner_name":"Valliant John","owner_display_name":"Valliant John","owner_url":"/insider/0001813574","role":"Director, Officer (Chief Executive Officer)","role_mark":"D","role_mark_label":"Director","role_mark_generic":"Director","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Executive Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":1204.0,"shares_display":"1,204","price_per_share":7.61,"price_display":"7.61","price_state":"stated","total_value":9162.44,"total_display":"9,162.44","total_whole":"9,162","shares_owned_after":383860.0,"shares_owned_after_display":"383,860","ownership_form":"D","is_10b5_1":null,"transaction_date":"2022-03-18","filed_date":"2022-03-21","scope":"insider"},{"id":6572538,"accession":"0001209191-22-020316","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001209191-22-020316","line_url":"/filing/0001209191-22-020316#line-1","is_derivative":false,"issuer_cik":"0001805890","issuer_name":"Fusion Pharmaceuticals Inc.","issuer_ticker":"FUSN","issuer_name_source":null,"issuer_url":"/issuer/0001805890","owner_cik":"0001813574","owner_name":"Valliant John","owner_display_name":"Valliant John","owner_url":"/insider/0001813574","role":"Director, Officer (Chief Executive Officer)","role_mark":"D","role_mark_label":"Director","role_mark_generic":"Director","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Executive Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":900.0,"shares_display":"900","price_per_share":7.51,"price_display":"7.51","price_state":"stated","total_value":6759.0,"total_display":"6,759.00","total_whole":"6,759","shares_owned_after":385064.0,"shares_owned_after_display":"385,064","ownership_form":"D","is_10b5_1":null,"transaction_date":"2022-03-17","filed_date":"2022-03-21","scope":"insider"},{"id":6250448,"accession":"0001209191-22-019224","txn_seq":3,"anchor":"line-3","filing_url":"/filing/0001209191-22-019224","line_url":"/filing/0001209191-22-019224#line-3","is_derivative":false,"issuer_cik":"0001805890","issuer_name":"Fusion Pharmaceuticals Inc.","issuer_ticker":"FUSN","issuer_name_source":null,"issuer_url":"/issuer/0001805890","owner_cik":"0001813574","owner_name":"Valliant John","owner_display_name":"Valliant John","owner_url":"/insider/0001813574","role":"Director, Officer (Chief Executive Officer)","role_mark":"D","role_mark_label":"Director","role_mark_generic":"Director","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Executive Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":100.0,"shares_display":"100","price_per_share":6.99,"price_display":"6.99","price_state":"stated","total_value":699.0,"total_display":"699.00","total_whole":"699","shares_owned_after":385964.0,"shares_owned_after_display":"385,964","ownership_form":"D","is_10b5_1":null,"transaction_date":"2022-03-16","filed_date":"2022-03-16","scope":"insider"},{"id":6250445,"accession":"0001209191-22-019224","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001209191-22-019224","line_url":"/filing/0001209191-22-019224#line-2","is_derivative":false,"issuer_cik":"0001805890","issuer_name":"Fusion Pharmaceuticals Inc.","issuer_ticker":"FUSN","issuer_name_source":null,"issuer_url":"/issuer/0001805890","owner_cik":"0001813574","owner_name":"Valliant John","owner_display_name":"Valliant John","owner_url":"/insider/0001813574","role":"Director, Officer (Chief Executive Officer)","role_mark":"D","role_mark_label":"Director","role_mark_generic":"Director","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Executive Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":100.0,"shares_display":"100","price_per_share":7.12,"price_display":"7.12","price_state":"stated","total_value":712.0,"total_display":"712.00","total_whole":"712","shares_owned_after":386064.0,"shares_owned_after_display":"386,064","ownership_form":"D","is_10b5_1":null,"transaction_date":"2022-03-15","filed_date":"2022-03-16","scope":"insider"},{"id":6250442,"accession":"0001209191-22-019224","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001209191-22-019224","line_url":"/filing/0001209191-22-019224#line-1","is_derivative":false,"issuer_cik":"0001805890","issuer_name":"Fusion Pharmaceuticals Inc.","issuer_ticker":"FUSN","issuer_name_source":null,"issuer_url":"/issuer/0001805890","owner_cik":"0001813574","owner_name":"Valliant John","owner_display_name":"Valliant John","owner_url":"/insider/0001813574","role":"Director, Officer (Chief Executive Officer)","role_mark":"D","role_mark_label":"Director","role_mark_generic":"Director","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Executive Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":1300.0,"shares_display":"1,300","price_per_share":6.96,"price_display":"6.96","price_state":"stated","total_value":9048.0,"total_display":"9,048.00","total_whole":"9,048","shares_owned_after":386164.0,"shares_owned_after_display":"386,164","ownership_form":"D","is_10b5_1":null,"transaction_date":"2022-03-14","filed_date":"2022-03-16","scope":"insider"},{"id":6424867,"accession":"0001209191-22-018455","txn_seq":3,"anchor":"line-3","filing_url":"/filing/0001209191-22-018455","line_url":"/filing/0001209191-22-018455#line-3","is_derivative":false,"issuer_cik":"0001805890","issuer_name":"Fusion Pharmaceuticals Inc.","issuer_ticker":"FUSN","issuer_name_source":null,"issuer_url":"/issuer/0001805890","owner_cik":"0001813574","owner_name":"Valliant John","owner_display_name":"Valliant John","owner_url":"/insider/0001813574","role":"Director, Officer (Chief Executive Officer)","role_mark":"D","role_mark_label":"Director","role_mark_generic":"Director","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Executive Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":100.0,"shares_display":"100","price_per_share":7.13,"price_display":"7.13","price_state":"stated","total_value":713.0,"total_display":"713.00","total_whole":"713","shares_owned_after":387464.0,"shares_owned_after_display":"387,464","ownership_form":"D","is_10b5_1":null,"transaction_date":"2022-03-11","filed_date":"2022-03-14","scope":"insider"},{"id":6424865,"accession":"0001209191-22-018455","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001209191-22-018455","line_url":"/filing/0001209191-22-018455#line-2","is_derivative":false,"issuer_cik":"0001805890","issuer_name":"Fusion Pharmaceuticals Inc.","issuer_ticker":"FUSN","issuer_name_source":null,"issuer_url":"/issuer/0001805890","owner_cik":"0001813574","owner_name":"Valliant John","owner_display_name":"Valliant John","owner_url":"/insider/0001813574","role":"Director, Officer (Chief Executive Officer)","role_mark":"D","role_mark_label":"Director","role_mark_generic":"Director","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Executive Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":1900.0,"shares_display":"1,900","price_per_share":7.06,"price_display":"7.06","price_state":"stated","total_value":13414.0,"total_display":"13,414.00","total_whole":"13,414","shares_owned_after":387564.0,"shares_owned_after_display":"387,564","ownership_form":"D","is_10b5_1":null,"transaction_date":"2022-03-10","filed_date":"2022-03-14","scope":"insider"},{"id":6424862,"accession":"0001209191-22-018455","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001209191-22-018455","line_url":"/filing/0001209191-22-018455#line-1","is_derivative":false,"issuer_cik":"0001805890","issuer_name":"Fusion Pharmaceuticals Inc.","issuer_ticker":"FUSN","issuer_name_source":null,"issuer_url":"/issuer/0001805890","owner_cik":"0001813574","owner_name":"Valliant John","owner_display_name":"Valliant John","owner_url":"/insider/0001813574","role":"Director, Officer (Chief Executive Officer)","role_mark":"D","role_mark_label":"Director","role_mark_generic":"Director","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Executive Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":822.0,"shares_display":"822","price_per_share":6.94,"price_display":"6.94","price_state":"stated","total_value":5704.68,"total_display":"5,704.68","total_whole":"5,705","shares_owned_after":389464.0,"shares_owned_after_display":"389,464","ownership_form":"D","is_10b5_1":null,"transaction_date":"2022-03-09","filed_date":"2022-03-14","scope":"insider"},{"id":6448080,"accession":"0001209191-22-017150","txn_seq":3,"anchor":"line-3","filing_url":"/filing/0001209191-22-017150","line_url":"/filing/0001209191-22-017150#line-3","is_derivative":false,"issuer_cik":"0001805890","issuer_name":"Fusion Pharmaceuticals Inc.","issuer_ticker":"FUSN","issuer_name_source":null,"issuer_url":"/issuer/0001805890","owner_cik":"0001813574","owner_name":"Valliant John","owner_display_name":"Valliant John","owner_url":"/insider/0001813574","role":"Director, Officer (Chief Executive Officer)","role_mark":"D","role_mark_label":"Director","role_mark_generic":"Director","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Executive Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":3004.0,"shares_display":"3,004","price_per_share":6.92,"price_display":"6.92","price_state":"stated","total_value":20787.68,"total_display":"20,787.68","total_whole":"20,788","shares_owned_after":390286.0,"shares_owned_after_display":"390,286","ownership_form":"D","is_10b5_1":null,"transaction_date":"2022-03-08","filed_date":"2022-03-08","scope":"insider"},{"id":6448077,"accession":"0001209191-22-017150","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001209191-22-017150","line_url":"/filing/0001209191-22-017150#line-2","is_derivative":false,"issuer_cik":"0001805890","issuer_name":"Fusion Pharmaceuticals Inc.","issuer_ticker":"FUSN","issuer_name_source":null,"issuer_url":"/issuer/0001805890","owner_cik":"0001813574","owner_name":"Valliant John","owner_display_name":"Valliant John","owner_url":"/insider/0001813574","role":"Director, Officer (Chief Executive Officer)","role_mark":"D","role_mark_label":"Director","role_mark_generic":"Director","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Executive Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":3100.0,"shares_display":"3,100","price_per_share":6.99,"price_display":"6.99","price_state":"stated","total_value":21669.0,"total_display":"21,669.00","total_whole":"21,669","shares_owned_after":393290.0,"shares_owned_after_display":"393,290","ownership_form":"D","is_10b5_1":null,"transaction_date":"2022-03-07","filed_date":"2022-03-08","scope":"insider"},{"id":6448074,"accession":"0001209191-22-017150","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001209191-22-017150","line_url":"/filing/0001209191-22-017150#line-1","is_derivative":false,"issuer_cik":"0001805890","issuer_name":"Fusion Pharmaceuticals Inc.","issuer_ticker":"FUSN","issuer_name_source":null,"issuer_url":"/issuer/0001805890","owner_cik":"0001813574","owner_name":"Valliant John","owner_display_name":"Valliant John","owner_url":"/insider/0001813574","role":"Director, Officer (Chief Executive Officer)","role_mark":"D","role_mark_label":"Director","role_mark_generic":"Director","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Executive Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":8400.0,"shares_display":"8,400","price_per_share":7.32,"price_display":"7.32","price_state":"stated","total_value":61488.0,"total_display":"61,488.00","total_whole":"61,488","shares_owned_after":396390.0,"shares_owned_after_display":"396,390","ownership_form":"D","is_10b5_1":null,"transaction_date":"2022-03-04","filed_date":"2022-03-08","scope":"insider"},{"id":6295208,"accession":"0001209191-22-015555","txn_seq":3,"anchor":"line-3","filing_url":"/filing/0001209191-22-015555","line_url":"/filing/0001209191-22-015555#line-3","is_derivative":false,"issuer_cik":"0001805890","issuer_name":"Fusion Pharmaceuticals Inc.","issuer_ticker":"FUSN","issuer_name_source":null,"issuer_url":"/issuer/0001805890","owner_cik":"0001813574","owner_name":"Valliant John","owner_display_name":"Valliant John","owner_url":"/insider/0001813574","role":"Director, Officer (Chief Executive Officer)","role_mark":"D","role_mark_label":"Director","role_mark_generic":"Director","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Executive Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":200.0,"shares_display":"200","price_per_share":7.28,"price_display":"7.28","price_state":"stated","total_value":1456.0,"total_display":"1,456.00","total_whole":"1,456","shares_owned_after":404790.0,"shares_owned_after_display":"404,790","ownership_form":"D","is_10b5_1":null,"transaction_date":"2022-03-03","filed_date":"2022-03-03","scope":"insider"},{"id":6295205,"accession":"0001209191-22-015555","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001209191-22-015555","line_url":"/filing/0001209191-22-015555#line-2","is_derivative":false,"issuer_cik":"0001805890","issuer_name":"Fusion Pharmaceuticals Inc.","issuer_ticker":"FUSN","issuer_name_source":null,"issuer_url":"/issuer/0001805890","owner_cik":"0001813574","owner_name":"Valliant John","owner_display_name":"Valliant John","owner_url":"/insider/0001813574","role":"Director, Officer (Chief Executive Officer)","role_mark":"D","role_mark_label":"Director","role_mark_generic":"Director","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Executive Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":26546.0,"shares_display":"26,546","price_per_share":7.44,"price_display":"7.44","price_state":"stated","total_value":197502.24,"total_display":"197,502.24","total_whole":"197,502","shares_owned_after":404990.0,"shares_owned_after_display":"404,990","ownership_form":"D","is_10b5_1":null,"transaction_date":"2022-03-02","filed_date":"2022-03-03","scope":"insider"},{"id":6295202,"accession":"0001209191-22-015555","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001209191-22-015555","line_url":"/filing/0001209191-22-015555#line-1","is_derivative":false,"issuer_cik":"0001805890","issuer_name":"Fusion Pharmaceuticals Inc.","issuer_ticker":"FUSN","issuer_name_source":null,"issuer_url":"/issuer/0001805890","owner_cik":"0001813574","owner_name":"Valliant John","owner_display_name":"Valliant John","owner_url":"/insider/0001813574","role":"Director, Officer (Chief Executive Officer)","role_mark":"D","role_mark_label":"Director","role_mark_generic":"Director","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Executive Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":847.0,"shares_display":"847","price_per_share":7.37,"price_display":"7.37","price_state":"stated","total_value":6242.39,"total_display":"6,242.39","total_whole":"6,242","shares_owned_after":431536.0,"shares_owned_after_display":"431,536","ownership_form":"D","is_10b5_1":null,"transaction_date":"2022-03-01","filed_date":"2022-03-03","scope":"insider"},{"id":6723176,"accession":"0001209191-22-013791","txn_seq":3,"anchor":"line-3","filing_url":"/filing/0001209191-22-013791","line_url":"/filing/0001209191-22-013791#line-3","is_derivative":false,"issuer_cik":"0001805890","issuer_name":"Fusion Pharmaceuticals Inc.","issuer_ticker":"FUSN","issuer_name_source":null,"issuer_url":"/issuer/0001805890","owner_cik":"0001813574","owner_name":"Valliant John","owner_display_name":"Valliant John","owner_url":"/insider/0001813574","role":"Director, Officer (Chief Executive Officer)","role_mark":"D","role_mark_label":"Director","role_mark_generic":"Director","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Executive Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":3100.0,"shares_display":"3,100","price_per_share":7.4,"price_display":"7.40","price_state":"stated","total_value":22940.0,"total_display":"22,940.00","total_whole":"22,940","shares_owned_after":432383.0,"shares_owned_after_display":"432,383","ownership_form":"D","is_10b5_1":null,"transaction_date":"2022-02-28","filed_date":"2022-02-28","scope":"insider"},{"id":6723173,"accession":"0001209191-22-013791","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001209191-22-013791","line_url":"/filing/0001209191-22-013791#line-2","is_derivative":false,"issuer_cik":"0001805890","issuer_name":"Fusion Pharmaceuticals Inc.","issuer_ticker":"FUSN","issuer_name_source":null,"issuer_url":"/issuer/0001805890","owner_cik":"0001813574","owner_name":"Valliant John","owner_display_name":"Valliant John","owner_url":"/insider/0001813574","role":"Director, Officer (Chief Executive Officer)","role_mark":"D","role_mark_label":"Director","role_mark_generic":"Director","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Executive Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":8152.0,"shares_display":"8,152","price_per_share":7.57,"price_display":"7.57","price_state":"stated","total_value":61710.64,"total_display":"61,710.64","total_whole":"61,711","shares_owned_after":435483.0,"shares_owned_after_display":"435,483","ownership_form":"D","is_10b5_1":null,"transaction_date":"2022-02-25","filed_date":"2022-02-28","scope":"insider"},{"id":6723170,"accession":"0001209191-22-013791","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001209191-22-013791","line_url":"/filing/0001209191-22-013791#line-1","is_derivative":false,"issuer_cik":"0001805890","issuer_name":"Fusion Pharmaceuticals Inc.","issuer_ticker":"FUSN","issuer_name_source":null,"issuer_url":"/issuer/0001805890","owner_cik":"0001813574","owner_name":"Valliant John","owner_display_name":"Valliant John","owner_url":"/insider/0001813574","role":"Director, Officer (Chief Executive Officer)","role_mark":"D","role_mark_label":"Director","role_mark_generic":"Director","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Executive Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":2500.0,"shares_display":"2,500","price_per_share":7.41,"price_display":"7.41","price_state":"stated","total_value":18525.0,"total_display":"18,525.00","total_whole":"18,525","shares_owned_after":443635.0,"shares_owned_after_display":"443,635","ownership_form":"D","is_10b5_1":null,"transaction_date":"2022-02-24","filed_date":"2022-02-28","scope":"insider"},{"id":6565710,"accession":"0001209191-22-012344","txn_seq":3,"anchor":"line-3","filing_url":"/filing/0001209191-22-012344","line_url":"/filing/0001209191-22-012344#line-3","is_derivative":false,"issuer_cik":"0001805890","issuer_name":"Fusion Pharmaceuticals Inc.","issuer_ticker":"FUSN","issuer_name_source":null,"issuer_url":"/issuer/0001805890","owner_cik":"0001813574","owner_name":"Valliant John","owner_display_name":"Valliant John","owner_url":"/insider/0001813574","role":"Director, Officer (Chief Executive Officer)","role_mark":"D","role_mark_label":"Director","role_mark_generic":"Director","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Executive Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":29299.0,"shares_display":"29,299","price_per_share":7.77,"price_display":"7.77","price_state":"stated","total_value":227653.23,"total_display":"227,653.23","total_whole":"227,653","shares_owned_after":446135.0,"shares_owned_after_display":"446,135","ownership_form":"D","is_10b5_1":null,"transaction_date":"2022-02-23","filed_date":"2022-02-23","scope":"insider"},{"id":6565707,"accession":"0001209191-22-012344","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001209191-22-012344","line_url":"/filing/0001209191-22-012344#line-2","is_derivative":false,"issuer_cik":"0001805890","issuer_name":"Fusion Pharmaceuticals Inc.","issuer_ticker":"FUSN","issuer_name_source":null,"issuer_url":"/issuer/0001805890","owner_cik":"0001813574","owner_name":"Valliant John","owner_display_name":"Valliant John","owner_url":"/insider/0001813574","role":"Director, Officer (Chief Executive Officer)","role_mark":"D","role_mark_label":"Director","role_mark_generic":"Director","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Executive Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":4100.0,"shares_display":"4,100","price_per_share":7.85,"price_display":"7.85","price_state":"stated","total_value":32185.0,"total_display":"32,185.00","total_whole":"32,185","shares_owned_after":475434.0,"shares_owned_after_display":"475,434","ownership_form":"D","is_10b5_1":null,"transaction_date":"2022-02-22","filed_date":"2022-02-23","scope":"insider"},{"id":6565704,"accession":"0001209191-22-012344","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001209191-22-012344","line_url":"/filing/0001209191-22-012344#line-1","is_derivative":false,"issuer_cik":"0001805890","issuer_name":"Fusion Pharmaceuticals Inc.","issuer_ticker":"FUSN","issuer_name_source":null,"issuer_url":"/issuer/0001805890","owner_cik":"0001813574","owner_name":"Valliant John","owner_display_name":"Valliant John","owner_url":"/insider/0001813574","role":"Director, Officer (Chief Executive Officer)","role_mark":"D","role_mark_label":"Director","role_mark_generic":"Director","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Executive Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":4898.0,"shares_display":"4,898","price_per_share":7.88,"price_display":"7.88","price_state":"stated","total_value":38596.24,"total_display":"38,596.24","total_whole":"38,596","shares_owned_after":479534.0,"shares_owned_after_display":"479,534","ownership_form":"D","is_10b5_1":null,"transaction_date":"2022-02-18","filed_date":"2022-02-23","scope":"insider"},{"id":6623085,"accession":"0001209191-22-010918","txn_seq":3,"anchor":"line-3","filing_url":"/filing/0001209191-22-010918","line_url":"/filing/0001209191-22-010918#line-3","is_derivative":false,"issuer_cik":"0001805890","issuer_name":"Fusion Pharmaceuticals Inc.","issuer_ticker":"FUSN","issuer_name_source":null,"issuer_url":"/issuer/0001805890","owner_cik":"0001813574","owner_name":"Valliant John","owner_display_name":"Valliant John","owner_url":"/insider/0001813574","role":"Director, Officer (Chief Executive Officer)","role_mark":"D","role_mark_label":"Director","role_mark_generic":"Director","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Executive Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":1700.0,"shares_display":"1,700","price_per_share":7.98,"price_display":"7.98","price_state":"stated","total_value":13566.0,"total_display":"13,566.00","total_whole":"13,566","shares_owned_after":484432.0,"shares_owned_after_display":"484,432","ownership_form":"D","is_10b5_1":null,"transaction_date":"2022-02-17","filed_date":"2022-02-17","scope":"insider"},{"id":6623082,"accession":"0001209191-22-010918","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001209191-22-010918","line_url":"/filing/0001209191-22-010918#line-2","is_derivative":false,"issuer_cik":"0001805890","issuer_name":"Fusion Pharmaceuticals Inc.","issuer_ticker":"FUSN","issuer_name_source":null,"issuer_url":"/issuer/0001805890","owner_cik":"0001813574","owner_name":"Valliant John","owner_display_name":"Valliant John","owner_url":"/insider/0001813574","role":"Director, Officer (Chief Executive Officer)","role_mark":"D","role_mark_label":"Director","role_mark_generic":"Director","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Executive Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":33202.0,"shares_display":"33,202","price_per_share":7.99,"price_display":"7.99","price_state":"stated","total_value":265283.98,"total_display":"265,283.98","total_whole":"265,284","shares_owned_after":486132.0,"shares_owned_after_display":"486,132","ownership_form":"D","is_10b5_1":null,"transaction_date":"2022-02-16","filed_date":"2022-02-17","scope":"insider"},{"id":6623078,"accession":"0001209191-22-010918","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001209191-22-010918","line_url":"/filing/0001209191-22-010918#line-1","is_derivative":false,"issuer_cik":"0001805890","issuer_name":"Fusion Pharmaceuticals Inc.","issuer_ticker":"FUSN","issuer_name_source":null,"issuer_url":"/issuer/0001805890","owner_cik":"0001813574","owner_name":"Valliant John","owner_display_name":"Valliant John","owner_url":"/insider/0001813574","role":"Director, Officer (Chief Executive Officer)","role_mark":"D","role_mark_label":"Director","role_mark_generic":"Director","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Executive Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":12600.0,"shares_display":"12,600","price_per_share":8.33,"price_display":"8.33","price_state":"stated","total_value":104958.0,"total_display":"104,958.00","total_whole":"104,958","shares_owned_after":519334.0,"shares_owned_after_display":"519,334","ownership_form":"D","is_10b5_1":null,"transaction_date":"2022-02-15","filed_date":"2022-02-17","scope":"insider"}],"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":"0001805890","name":"Fusion Pharmaceuticals Inc.","url":"/issuer/0001805890","role":"Director, Officer (Chief Executive Officer)","n_filings":16,"first_seen":"2022-02-17","last_seen":"2022-04-27"}],"order_statement":"Newest transaction date first, id breaking the tie.","canonical_url":"https://ebomi.com/insider/0001813574","retrieved_at":"2026-08-27T19:14:42+00:00","coverage":{"filings":1506293,"transactions":4290787,"issuers":28597,"insiders":152303,"first_filed_date":"2003-06-30","last_filed_date":"2026-08-26","last_ingest":"2026-08-27T05:24:39.644631+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"}}