{"entity":{"type":"insider","cik":"0001381994","url":"/insider/0001381994","json_url":"/insider/0001381994.json","name":"Ausiello Dennis A","name_source":"as-filed","also_issuer":false,"cross_url":null},"coverage_statement":{"n_transactions":28,"n_filings":11,"first":"2014-10-24","last":"2025-08-15","span_basis":"filed_date"},"name_variants":[{"name":"Ausiello Dennis A","source":"filing","n_filings":11,"first_seen":"2014-10-24","last_seen":"2025-08-15"}],"transactions":[{"id":4508298,"accession":"0001735276-25-000079","txn_seq":17,"anchor":"line-17","filing_url":"/filing/0001735276-25-000079","line_url":"/filing/0001735276-25-000079","is_derivative":false,"issuer_cik":"0001178670","issuer_name":"ALNYLAM PHARMACEUTICALS, INC.","issuer_ticker":"ALNY","issuer_name_source":null,"issuer_url":"/issuer/0001178670","owner_cik":"0001381994","owner_name":"Ausiello Dennis A","owner_display_name":"Ausiello Dennis A","owner_url":"/insider/0001381994","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":31448.0,"shares_display":"31,448","price_per_share":436.57897640549476,"price_display":"436.58","price_state":"stated","total_value":13729535.65,"total_display":"13,729,535.65","total_whole":"13,729,536","shares_owned_after":18663.0,"shares_owned_after_display":"18,663","ownership_form":"D","is_10b5_1":null,"transaction_date":"2025-08-14","filed_date":"2025-08-15","scope":"insider","n_lines":11},{"id":2195902,"accession":"0001735276-24-000080","txn_seq":9,"anchor":"line-9","filing_url":"/filing/0001735276-24-000080","line_url":"/filing/0001735276-24-000080","is_derivative":false,"issuer_cik":"0001178670","issuer_name":"ALNYLAM PHARMACEUTICALS, INC.","issuer_ticker":"ALNY","issuer_name_source":null,"issuer_url":"/issuer/0001178670","owner_cik":"0001381994","owner_name":"Ausiello Dennis A","owner_display_name":"Ausiello Dennis A","owner_url":"/insider/0001381994","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":20250.0,"shares_display":"20,250","price_per_share":262.00427012345676,"price_display":"262.00","price_state":"stated","total_value":5305586.47,"total_display":"5,305,586.47","total_whole":"5,305,586","shares_owned_after":8805.0,"shares_owned_after_display":"8,805","ownership_form":"D","is_10b5_1":null,"transaction_date":"2024-08-06","filed_date":"2024-08-08","scope":"insider","n_lines":7},{"id":6688987,"accession":"0001735276-22-000076","txn_seq":3,"anchor":"line-3","filing_url":"/filing/0001735276-22-000076","line_url":"/filing/0001735276-22-000076#line-3","is_derivative":false,"issuer_cik":"0001178670","issuer_name":"ALNYLAM PHARMACEUTICALS, INC.","issuer_ticker":"ALNY","issuer_name_source":null,"issuer_url":"/issuer/0001178670","owner_cik":"0001381994","owner_name":"Ausiello Dennis A","owner_display_name":"Ausiello Dennis A","owner_url":"/insider/0001381994","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":22500.0,"shares_display":"22,500","price_per_share":220.0,"price_display":"220.00","price_state":"stated","total_value":4950000.0,"total_display":"4,950,000.00","total_whole":"4,950,000","shares_owned_after":0.0,"shares_owned_after_display":"0","ownership_form":"D","is_10b5_1":null,"transaction_date":"2022-11-21","filed_date":"2022-11-23","scope":"insider"},{"id":6879561,"accession":"0001553878-18-000022","txn_seq":3,"anchor":"line-3","filing_url":"/filing/0001553878-18-000022","line_url":"/filing/0001553878-18-000022#line-3","is_derivative":false,"issuer_cik":"0001178670","issuer_name":"ALNYLAM PHARMACEUTICALS, INC.","issuer_ticker":"ALNY","issuer_name_source":null,"issuer_url":"/issuer/0001178670","owner_cik":"0001381994","owner_name":"Ausiello Dennis A","owner_display_name":"Ausiello Dennis A","owner_url":"/insider/0001381994","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":17117.0,"shares_display":"17,117","price_per_share":150.0,"price_display":"150.00","price_state":"stated","total_value":2567550.0,"total_display":"2,567,550.00","total_whole":"2,567,550","shares_owned_after":0.0,"shares_owned_after_display":"0","ownership_form":"D","is_10b5_1":null,"transaction_date":"2018-03-13","filed_date":"2018-03-14","scope":"insider"},{"id":4977989,"accession":"0001553878-17-000057","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001553878-17-000057","line_url":"/filing/0001553878-17-000057#line-2","is_derivative":false,"issuer_cik":"0001178670","issuer_name":"ALNYLAM PHARMACEUTICALS, INC.","issuer_ticker":"ALNY","issuer_name_source":null,"issuer_url":"/issuer/0001178670","owner_cik":"0001381994","owner_name":"Ausiello Dennis A","owner_display_name":"Ausiello Dennis A","owner_url":"/insider/0001381994","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":20000.0,"shares_display":"20,000","price_per_share":130.0,"price_display":"130.00","price_state":"stated","total_value":2600000.0,"total_display":"2,600,000.00","total_whole":"2,600,000","shares_owned_after":0.0,"shares_owned_after_display":"0","ownership_form":"D","is_10b5_1":null,"transaction_date":"2017-11-02","filed_date":"2017-11-03","scope":"insider"},{"id":8796397,"accession":"0001553878-15-000017","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001553878-15-000017","line_url":"/filing/0001553878-15-000017#line-1","is_derivative":false,"issuer_cik":"0001178670","issuer_name":"ALNYLAM PHARMACEUTICALS, INC.","issuer_ticker":"ALNY","issuer_name_source":null,"issuer_url":"/issuer/0001178670","owner_cik":"0001381994","owner_name":"Ausiello Dennis A","owner_display_name":"Ausiello Dennis A","owner_url":"/insider/0001381994","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":8165.0,"shares_display":"8,165","price_per_share":130.02,"price_display":"130.02","price_state":"stated","total_value":1061613.3,"total_display":"1,061,613.30","total_whole":"1,061,613","shares_owned_after":0.0,"shares_owned_after_display":"0","ownership_form":"D","is_10b5_1":null,"transaction_date":"2015-04-21","filed_date":"2015-04-23","scope":"insider"},{"id":8761993,"accession":"0001553878-15-000012","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001553878-15-000012","line_url":"/filing/0001553878-15-000012#line-1","is_derivative":false,"issuer_cik":"0001178670","issuer_name":"ALNYLAM PHARMACEUTICALS, INC.","issuer_ticker":"ALNY","issuer_name_source":null,"issuer_url":"/issuer/0001178670","owner_cik":"0001381994","owner_name":"Ausiello Dennis A","owner_display_name":"Ausiello Dennis A","owner_url":"/insider/0001381994","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":5000.0,"shares_display":"5,000","price_per_share":120.0,"price_display":"120.00","price_state":"stated","total_value":600000.0,"total_display":"600,000.00","total_whole":"600,000","shares_owned_after":8165.0,"shares_owned_after_display":"8,165","ownership_form":"D","is_10b5_1":null,"transaction_date":"2015-03-19","filed_date":"2015-03-19","scope":"insider"},{"id":8624109,"accession":"0001553878-15-000008","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001553878-15-000008","line_url":"/filing/0001553878-15-000008#line-2","is_derivative":false,"issuer_cik":"0001178670","issuer_name":"ALNYLAM PHARMACEUTICALS, INC.","issuer_ticker":"ALNY","issuer_name_source":null,"issuer_url":"/issuer/0001178670","owner_cik":"0001381994","owner_name":"Ausiello Dennis A","owner_display_name":"Ausiello Dennis A","owner_url":"/insider/0001381994","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":706.0,"shares_display":"706","price_per_share":115.0,"price_display":"115.00","price_state":"stated","total_value":81190.0,"total_display":"81,190.00","total_whole":"81,190","shares_owned_after":13165.0,"shares_owned_after_display":"13,165","ownership_form":"D","is_10b5_1":null,"transaction_date":"2015-03-05","filed_date":"2015-03-06","scope":"insider"},{"id":7080398,"accession":"0001553878-14-000024","txn_seq":4,"anchor":"line-4","filing_url":"/filing/0001553878-14-000024","line_url":"/filing/0001553878-14-000024","is_derivative":false,"issuer_cik":"0001178670","issuer_name":"ALNYLAM PHARMACEUTICALS, INC.","issuer_ticker":"ALNY","issuer_name_source":null,"issuer_url":"/issuer/0001178670","owner_cik":"0001381994","owner_name":"Ausiello Dennis A","owner_display_name":"Ausiello Dennis A","owner_url":"/insider/0001381994","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":15000.0,"shares_display":"15,000","price_per_share":108.33333333333333,"price_display":"108.33","price_state":"stated","total_value":1625000.0,"total_display":"1,625,000.00","total_whole":"1,625,000","shares_owned_after":13165.0,"shares_owned_after_display":"13,165","ownership_form":"D","is_10b5_1":null,"transaction_date":"2014-12-08","filed_date":"2014-12-10","scope":"insider","n_lines":2},{"id":6803315,"accession":"0001553878-14-000019","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001553878-14-000019","line_url":"/filing/0001553878-14-000019#line-2","is_derivative":false,"issuer_cik":"0001178670","issuer_name":"ALNYLAM PHARMACEUTICALS, INC.","issuer_ticker":"ALNY","issuer_name_source":null,"issuer_url":"/issuer/0001178670","owner_cik":"0001381994","owner_name":"Ausiello Dennis A","owner_display_name":"Ausiello Dennis A","owner_url":"/insider/0001381994","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":5000.0,"shares_display":"5,000","price_per_share":100.0,"price_display":"100.00","price_state":"stated","total_value":500000.0,"total_display":"500,000.00","total_whole":"500,000","shares_owned_after":13165.0,"shares_owned_after_display":"13,165","ownership_form":"D","is_10b5_1":null,"transaction_date":"2014-11-11","filed_date":"2014-11-13","scope":"insider"},{"id":6803308,"accession":"0001553878-14-000015","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001553878-14-000015","line_url":"/filing/0001553878-14-000015#line-2","is_derivative":false,"issuer_cik":"0001178670","issuer_name":"ALNYLAM PHARMACEUTICALS, INC.","issuer_ticker":"ALNY","issuer_name_source":null,"issuer_url":"/issuer/0001178670","owner_cik":"0001381994","owner_name":"Ausiello Dennis A","owner_display_name":"Ausiello Dennis A","owner_url":"/insider/0001381994","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":5000.0,"shares_display":"5,000","price_per_share":90.0,"price_display":"90.00","price_state":"stated","total_value":450000.0,"total_display":"450,000.00","total_whole":"450,000","shares_owned_after":13165.0,"shares_owned_after_display":"13,165","ownership_form":"D","is_10b5_1":null,"transaction_date":"2014-10-22","filed_date":"2014-10-24","scope":"insider"}],"collapsed":true,"next_cursor":null,"ledger_fault":false,"count":{"value":28,"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":28,"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":28},"affiliations":[{"type":"issuer","type_label":"ISSUER","cik":"0001178670","name":"ALNYLAM PHARMACEUTICALS, INC.","url":"/issuer/0001178670","role":"Director","n_filings":11,"first_seen":"2014-10-24","last_seen":"2025-08-15"}],"order_statement":"Newest transaction date first, id breaking the tie.","canonical_url":"https://ebomi.com/insider/0001381994","retrieved_at":"2026-08-23T02:35:00+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"}}