{"entity":{"type":"insider","cik":"0001913765","url":"/insider/0001913765","json_url":"/insider/0001913765.json","name":"Mazzariello Gina","name_source":"as-filed","also_issuer":false,"cross_url":null},"coverage_statement":{"n_transactions":18,"n_filings":16,"first":"2023-02-28","last":"2026-07-13","span_basis":"filed_date"},"name_variants":[{"name":"Mazzariello Gina","source":"filing","n_filings":16,"first_seen":"2023-02-28","last_seen":"2026-07-13"}],"transactions":[{"id":5860015,"accession":"0001193125-26-301996","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001193125-26-301996","line_url":"/filing/0001193125-26-301996#line-2","is_derivative":false,"issuer_cik":"0001658551","issuer_name":"Amylyx Pharmaceuticals, Inc.","issuer_ticker":"AMLX","issuer_name_source":null,"issuer_url":"/issuer/0001658551","owner_cik":"0001913765","owner_name":"Mazzariello Gina","owner_display_name":"Mazzariello Gina","owner_url":"/insider/0001913765","role":"Officer (Chief Legal Officer)","role_mark":"O","role_mark_label":"Officer (Chief Legal Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Legal Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":15000.0,"shares_display":"15,000","price_per_share":17.6081,"price_display":"17.61","price_state":"stated","total_value":264121.5,"total_display":"264,121.50","total_whole":"264,122","shares_owned_after":179090.0,"shares_owned_after_display":"179,090","ownership_form":"D","is_10b5_1":null,"transaction_date":"2026-07-10","filed_date":"2026-07-13","scope":"insider"},{"id":5860013,"accession":"0001193125-26-301996","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001193125-26-301996","line_url":"/filing/0001193125-26-301996#line-1","is_derivative":false,"issuer_cik":"0001658551","issuer_name":"Amylyx Pharmaceuticals, Inc.","issuer_ticker":"AMLX","issuer_name_source":null,"issuer_url":"/issuer/0001658551","owner_cik":"0001913765","owner_name":"Mazzariello Gina","owner_display_name":"Mazzariello Gina","owner_url":"/insider/0001913765","role":"Officer (Chief Legal Officer)","role_mark":"O","role_mark_label":"Officer (Chief Legal Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Legal Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":15000.0,"shares_display":"15,000","price_per_share":18.3164,"price_display":"18.32","price_state":"stated","total_value":274746.0,"total_display":"274,746.00","total_whole":"274,746","shares_owned_after":194090.0,"shares_owned_after_display":"194,090","ownership_form":"D","is_10b5_1":null,"transaction_date":"2026-07-09","filed_date":"2026-07-13","scope":"insider"},{"id":5745530,"accession":"0001193125-26-091436","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001193125-26-091436","line_url":"/filing/0001193125-26-091436#line-1","is_derivative":false,"issuer_cik":"0001658551","issuer_name":"Amylyx Pharmaceuticals, Inc.","issuer_ticker":"AMLX","issuer_name_source":null,"issuer_url":"/issuer/0001658551","owner_cik":"0001913765","owner_name":"Mazzariello Gina","owner_display_name":"Mazzariello Gina","owner_url":"/insider/0001913765","role":"Officer (Chief Legal Officer)","role_mark":"O","role_mark_label":"Officer (Chief Legal Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Legal Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":6844.0,"shares_display":"6,844","price_per_share":14.5205,"price_display":"14.52","price_state":"stated","total_value":99378.302,"total_display":"99,378.30","total_whole":"99,378","shares_owned_after":134430.0,"shares_owned_after_display":"134,430","ownership_form":"D","is_10b5_1":null,"transaction_date":"2026-03-02","filed_date":"2026-03-04","scope":"insider"},{"id":6087548,"accession":"0001193125-26-071460","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001193125-26-071460","line_url":"/filing/0001193125-26-071460#line-1","is_derivative":false,"issuer_cik":"0001658551","issuer_name":"Amylyx Pharmaceuticals, Inc.","issuer_ticker":"AMLX","issuer_name_source":null,"issuer_url":"/issuer/0001658551","owner_cik":"0001913765","owner_name":"Mazzariello Gina","owner_display_name":"Mazzariello Gina","owner_url":"/insider/0001913765","role":"Officer (Chief Legal Officer)","role_mark":"O","role_mark_label":"Officer (Chief Legal Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Legal Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":3419.0,"shares_display":"3,419","price_per_share":14.1422,"price_display":"14.14","price_state":"stated","total_value":48352.1818,"total_display":"48,352.18","total_whole":"48,352","shares_owned_after":141274.0,"shares_owned_after_display":"141,274","ownership_form":"D","is_10b5_1":null,"transaction_date":"2026-02-23","filed_date":"2026-02-25","scope":"insider"},{"id":5836350,"accession":"0001193125-26-037548","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001193125-26-037548","line_url":"/filing/0001193125-26-037548#line-1","is_derivative":false,"issuer_cik":"0001658551","issuer_name":"Amylyx Pharmaceuticals, Inc.","issuer_ticker":"AMLX","issuer_name_source":null,"issuer_url":"/issuer/0001658551","owner_cik":"0001913765","owner_name":"Mazzariello Gina","owner_display_name":"Mazzariello Gina","owner_url":"/insider/0001913765","role":"Officer (Chief Legal Officer)","role_mark":"O","role_mark_label":"Officer (Chief Legal Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Legal Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":3448.0,"shares_display":"3,448","price_per_share":14.6507,"price_display":"14.65","price_state":"stated","total_value":50515.6136,"total_display":"50,515.61","total_whole":"50,516","shares_owned_after":144693.0,"shares_owned_after_display":"144,693","ownership_form":"D","is_10b5_1":null,"transaction_date":"2026-02-02","filed_date":"2026-02-04","scope":"insider"},{"id":4940181,"accession":"0001193125-25-228342","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001193125-25-228342","line_url":"/filing/0001193125-25-228342#line-1","is_derivative":false,"issuer_cik":"0001658551","issuer_name":"Amylyx Pharmaceuticals, Inc.","issuer_ticker":"AMLX","issuer_name_source":null,"issuer_url":"/issuer/0001658551","owner_cik":"0001913765","owner_name":"Mazzariello Gina","owner_display_name":"Mazzariello Gina","owner_url":"/insider/0001913765","role":"Officer (Chief Legal Officer)","role_mark":"O","role_mark_label":"Officer (Chief Legal Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Legal Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":8828.0,"shares_display":"8,828","price_per_share":14.5751,"price_display":"14.58","price_state":"stated","total_value":128668.9828,"total_display":"128,668.98","total_whole":"128,669","shares_owned_after":148141.0,"shares_owned_after_display":"148,141","ownership_form":"D","is_10b5_1":null,"transaction_date":"2025-09-30","filed_date":"2025-10-02","scope":"insider"},{"id":4585404,"accession":"0000950170-25-108912","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0000950170-25-108912","line_url":"/filing/0000950170-25-108912#line-2","is_derivative":false,"issuer_cik":"0001658551","issuer_name":"Amylyx Pharmaceuticals, Inc.","issuer_ticker":"AMLX","issuer_name_source":null,"issuer_url":"/issuer/0001658551","owner_cik":"0001913765","owner_name":"Mazzariello Gina","owner_display_name":"Mazzariello Gina","owner_url":"/insider/0001913765","role":"Officer (Chief Legal Officer)","role_mark":"O","role_mark_label":"Officer (Chief Legal Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Legal Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":15000.0,"shares_display":"15,000","price_per_share":8.3364,"price_display":"8.34","price_state":"stated","total_value":125046.0,"total_display":"125,046.00","total_whole":"125,046","shares_owned_after":156969.0,"shares_owned_after_display":"156,969","ownership_form":"D","is_10b5_1":null,"transaction_date":"2025-08-13","filed_date":"2025-08-14","scope":"insider"},{"id":4585399,"accession":"0000950170-25-108912","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0000950170-25-108912","line_url":"/filing/0000950170-25-108912#line-1","is_derivative":false,"issuer_cik":"0001658551","issuer_name":"Amylyx Pharmaceuticals, Inc.","issuer_ticker":"AMLX","issuer_name_source":null,"issuer_url":"/issuer/0001658551","owner_cik":"0001913765","owner_name":"Mazzariello Gina","owner_display_name":"Mazzariello Gina","owner_url":"/insider/0001913765","role":"Officer (Chief Legal Officer)","role_mark":"O","role_mark_label":"Officer (Chief Legal Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Legal Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":15000.0,"shares_display":"15,000","price_per_share":8.0735,"price_display":"8.07","price_state":"stated","total_value":121102.5,"total_display":"121,102.50","total_whole":"121,103","shares_owned_after":171969.0,"shares_owned_after_display":"171,969","ownership_form":"D","is_10b5_1":null,"transaction_date":"2025-08-12","filed_date":"2025-08-14","scope":"insider"},{"id":4981789,"accession":"0000950170-25-049560","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0000950170-25-049560","line_url":"/filing/0000950170-25-049560#line-1","is_derivative":false,"issuer_cik":"0001658551","issuer_name":"Amylyx Pharmaceuticals, Inc.","issuer_ticker":"AMLX","issuer_name_source":null,"issuer_url":"/issuer/0001658551","owner_cik":"0001913765","owner_name":"Mazzariello Gina","owner_display_name":"Mazzariello Gina","owner_url":"/insider/0001913765","role":"Officer (Chief Legal Officer)","role_mark":"O","role_mark_label":"Officer (Chief Legal Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Legal Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":9192.0,"shares_display":"9,192","price_per_share":3.4763,"price_display":"3.48","price_state":"stated","total_value":31954.1496,"total_display":"31,954.15","total_whole":"31,954","shares_owned_after":187969.0,"shares_owned_after_display":"187,969","ownership_form":"D","is_10b5_1":null,"transaction_date":"2025-03-31","filed_date":"2025-04-02","scope":"insider"},{"id":4495136,"accession":"0000950170-25-033717","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0000950170-25-033717","line_url":"/filing/0000950170-25-033717#line-1","is_derivative":false,"issuer_cik":"0001658551","issuer_name":"Amylyx Pharmaceuticals, Inc.","issuer_ticker":"AMLX","issuer_name_source":null,"issuer_url":"/issuer/0001658551","owner_cik":"0001913765","owner_name":"Mazzariello Gina","owner_display_name":"Mazzariello Gina","owner_url":"/insider/0001913765","role":"Officer (Chief Legal Officer)","role_mark":"O","role_mark_label":"Officer (Chief Legal Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Legal Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":1611.0,"shares_display":"1,611","price_per_share":3.1175,"price_display":"3.12","price_state":"stated","total_value":5022.2925,"total_display":"5,022.29","total_whole":"5,022","shares_owned_after":133310.0,"shares_owned_after_display":"133,310","ownership_form":"D","is_10b5_1":null,"transaction_date":"2025-03-03","filed_date":"2025-03-05","scope":"insider"},{"id":4416465,"accession":"0000950170-25-027833","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0000950170-25-027833","line_url":"/filing/0000950170-25-027833#line-1","is_derivative":false,"issuer_cik":"0001658551","issuer_name":"Amylyx Pharmaceuticals, Inc.","issuer_ticker":"AMLX","issuer_name_source":null,"issuer_url":"/issuer/0001658551","owner_cik":"0001913765","owner_name":"Mazzariello Gina","owner_display_name":"Mazzariello Gina","owner_url":"/insider/0001913765","role":"Officer (Chief Legal Officer)","role_mark":"O","role_mark_label":"Officer (Chief Legal Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Legal Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":4169.0,"shares_display":"4,169","price_per_share":3.153,"price_display":"3.15","price_state":"stated","total_value":13144.857,"total_display":"13,144.86","total_whole":"13,145","shares_owned_after":134921.0,"shares_owned_after_display":"134,921","ownership_form":"D","is_10b5_1":null,"transaction_date":"2025-02-24","filed_date":"2025-02-26","scope":"insider"},{"id":4099149,"accession":"0000950170-25-014620","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0000950170-25-014620","line_url":"/filing/0000950170-25-014620#line-1","is_derivative":false,"issuer_cik":"0001658551","issuer_name":"Amylyx Pharmaceuticals, Inc.","issuer_ticker":"AMLX","issuer_name_source":null,"issuer_url":"/issuer/0001658551","owner_cik":"0001913765","owner_name":"Mazzariello Gina","owner_display_name":"Mazzariello Gina","owner_url":"/insider/0001913765","role":"Officer (Chief Legal Officer)","role_mark":"O","role_mark_label":"Officer (Chief Legal Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Legal Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":3678.0,"shares_display":"3,678","price_per_share":3.4908,"price_display":"3.49","price_state":"stated","total_value":12839.1624,"total_display":"12,839.16","total_whole":"12,839","shares_owned_after":139090.0,"shares_owned_after_display":"139,090","ownership_form":"D","is_10b5_1":null,"transaction_date":"2025-02-03","filed_date":"2025-02-05","scope":"insider"},{"id":2350136,"accession":"0000950170-24-111805","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0000950170-24-111805","line_url":"/filing/0000950170-24-111805#line-1","is_derivative":false,"issuer_cik":"0001658551","issuer_name":"Amylyx Pharmaceuticals, Inc.","issuer_ticker":"AMLX","issuer_name_source":null,"issuer_url":"/issuer/0001658551","owner_cik":"0001913765","owner_name":"Mazzariello Gina","owner_display_name":"Mazzariello Gina","owner_url":"/insider/0001913765","role":"Officer (Chief Legal Officer)","role_mark":"O","role_mark_label":"Officer (Chief Legal Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Legal Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":8709.0,"shares_display":"8,709","price_per_share":3.1967,"price_display":"3.20","price_state":"stated","total_value":27840.0603,"total_display":"27,840.06","total_whole":"27,840","shares_owned_after":142768.0,"shares_owned_after_display":"142,768","ownership_form":"D","is_10b5_1":null,"transaction_date":"2024-09-30","filed_date":"2024-10-02","scope":"insider"},{"id":2275676,"accession":"0000950170-24-061293","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0000950170-24-061293","line_url":"/filing/0000950170-24-061293#line-1","is_derivative":false,"issuer_cik":"0001658551","issuer_name":"Amylyx Pharmaceuticals, Inc.","issuer_ticker":"AMLX","issuer_name_source":null,"issuer_url":"/issuer/0001658551","owner_cik":"0001913765","owner_name":"Mazzariello Gina","owner_display_name":"Mazzariello Gina","owner_url":"/insider/0001913765","role":"Officer (Chief Legal Officer)","role_mark":"O","role_mark_label":"Officer (Chief Legal Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Legal Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":10455.0,"shares_display":"10,455","price_per_share":1.8799,"price_display":"1.88","price_state":"stated","total_value":19654.3545,"total_display":"19,654.35","total_whole":"19,654","shares_owned_after":151477.0,"shares_owned_after_display":"151,477","ownership_form":"D","is_10b5_1":null,"transaction_date":"2024-05-15","filed_date":"2024-05-16","scope":"insider"},{"id":2115902,"accession":"0000950170-24-027921","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0000950170-24-027921","line_url":"/filing/0000950170-24-027921#line-1","is_derivative":false,"issuer_cik":"0001658551","issuer_name":"Amylyx Pharmaceuticals, Inc.","issuer_ticker":"AMLX","issuer_name_source":null,"issuer_url":"/issuer/0001658551","owner_cik":"0001913765","owner_name":"Mazzariello Gina","owner_display_name":"Mazzariello Gina","owner_url":"/insider/0001913765","role":"Officer (Chief Legal Officer)","role_mark":"O","role_mark_label":"Officer (Chief Legal Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Legal Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":1540.0,"shares_display":"1,540","price_per_share":18.7279,"price_display":"18.73","price_state":"stated","total_value":28840.966,"total_display":"28,840.97","total_whole":"28,841","shares_owned_after":81372.0,"shares_owned_after_display":"81,372","ownership_form":"D","is_10b5_1":null,"transaction_date":"2024-03-05","filed_date":"2024-03-07","scope":"insider"},{"id":2849421,"accession":"0000950170-24-021472","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0000950170-24-021472","line_url":"/filing/0000950170-24-021472#line-1","is_derivative":false,"issuer_cik":"0001658551","issuer_name":"Amylyx Pharmaceuticals, Inc.","issuer_ticker":"AMLX","issuer_name_source":null,"issuer_url":"/issuer/0001658551","owner_cik":"0001913765","owner_name":"Mazzariello Gina","owner_display_name":"Mazzariello Gina","owner_url":"/insider/0001913765","role":"Officer (Chief Legal Officer)","role_mark":"O","role_mark_label":"Officer (Chief Legal Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Legal Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":2838.0,"shares_display":"2,838","price_per_share":18.7564,"price_display":"18.76","price_state":"stated","total_value":53230.6632,"total_display":"53,230.66","total_whole":"53,231","shares_owned_after":46245.0,"shares_owned_after_display":"46,245","ownership_form":"D","is_10b5_1":null,"transaction_date":"2024-02-23","filed_date":"2024-02-27","scope":"insider"},{"id":8282027,"accession":"0000950170-23-043242","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0000950170-23-043242","line_url":"/filing/0000950170-23-043242#line-1","is_derivative":false,"issuer_cik":"0001658551","issuer_name":"Amylyx Pharmaceuticals, Inc.","issuer_ticker":"AMLX","issuer_name_source":null,"issuer_url":"/issuer/0001658551","owner_cik":"0001913765","owner_name":"Mazzariello Gina","owner_display_name":"Mazzariello Gina","owner_url":"/insider/0001913765","role":"Officer (Chief Legal Officer)","role_mark":"O","role_mark_label":"Officer (Chief Legal Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Legal Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":6164.0,"shares_display":"6,164","price_per_share":20.8771,"price_display":"20.88","price_state":"stated","total_value":128686.4444,"total_display":"128,686.44","total_whole":"128,686","shares_owned_after":49083.0,"shares_owned_after_display":"49,083","ownership_form":"D","is_10b5_1":null,"transaction_date":"2023-08-15","filed_date":"2023-08-17","scope":"insider"},{"id":8350847,"accession":"0000899243-23-006418","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0000899243-23-006418","line_url":"/filing/0000899243-23-006418#line-1","is_derivative":false,"issuer_cik":"0001658551","issuer_name":"Amylyx Pharmaceuticals, Inc.","issuer_ticker":"AMLX","issuer_name_source":null,"issuer_url":"/issuer/0001658551","owner_cik":"0001913765","owner_name":"Mazzariello Gina","owner_display_name":"Mazzariello Gina","owner_url":"/insider/0001913765","role":"Officer (Chief Legal Officer)","role_mark":"O","role_mark_label":"Officer (Chief Legal Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Legal Officer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":3586.0,"shares_display":"3,586","price_per_share":34.4874,"price_display":"34.49","price_state":"stated","total_value":123671.8164,"total_display":"123,671.82","total_whole":"123,672","shares_owned_after":37414.0,"shares_owned_after_display":"37,414","ownership_form":"D","is_10b5_1":null,"transaction_date":"2023-02-24","filed_date":"2023-02-28","scope":"insider"}],"collapsed":true,"next_cursor":null,"ledger_fault":false,"count":{"value":18,"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":18,"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":18},"affiliations":[{"type":"issuer","type_label":"ISSUER","cik":"0001658551","name":"Amylyx Pharmaceuticals, Inc.","url":"/issuer/0001658551","role":"Officer (Chief Legal Officer)","n_filings":16,"first_seen":"2023-02-28","last_seen":"2026-07-13"}],"order_statement":"Newest transaction date first, id breaking the tie.","canonical_url":"https://ebomi.com/insider/0001913765","retrieved_at":"2026-08-24T17:47:01+00:00","coverage":{"filings":1506293,"transactions":4290787,"issuers":28597,"insiders":152303,"first_filed_date":"2003-06-30","last_filed_date":"2026-08-21","last_ingest":"2026-08-22T05:23:40.159918+00:00","counts_are":{"filings":"estimate","transactions":"estimate","issuers":"estimate","insiders":"estimate"},"source":"SEC EDGAR Form 4 filings, parsed by ebomi","fault":false},"license":{"underlying_records":"US SEC filings are public records of the United States government and are not subject to copyright. The transactional facts in them are not ours to license.","this_presentation":"The parsing, normalisation, curation, and presentation are ebomi's own work.","grant":"undecided","grant_note":"The open licence for ebomi's own layer is an open owner decision (SPEC-20260731T1159Z open question 3: CC BY 4.0 or CC0 with a citation request). Until it is taken, no grant is asserted here.","citation_request":"Balogh, A. Insider trading. Scientific Data 10, 237 (2023)","url":"https://ebomi.com/license"},"fair_use":{"policy":"These JSON endpoints are open and unauthenticated. Please read them at a human pace, identify your client in the User-Agent header, and use the published dataset for bulk work rather than crawling page by page.","bulk_alternative":"doi:10.1038/s41597-023-02147-6"}}