{"cik":1178670,"company":{"entity_status":"ACTIVE","filings":[{"accession":"0001178670-26-000068","document":"xslF345X06/form4.xml","filed":"2026-10-06","form":"4","items":"","report_date":"2026-10-02"},{"accession":"0001178670-26-000065","document":"xslF345X06/form4.xml","filed":"2026-09-22","form":"4","items":"","report_date":"2026-09-19"},{"accession":"0001178670-26-000062","document":"alny-20260630.htm","filed":"2026-07-30","form":"10-Q","items":"","report_date":"2026-06-30"},{"accession":"0001178670-26-000060","document":"alny-20260730.htm","filed":"2026-07-30","form":"8-K","items":"2.02,9.01","report_date":"2026-07-30"},{"accession":"0001178670-26-000048","document":"xslF345X06/form4.xml","filed":"2026-06-03","form":"4","items":"","report_date":"2026-06-01"},{"accession":"0001178670-26-000047","document":"xslF345X06/form4.xml","filed":"2026-06-03","form":"4","items":"","report_date":"2026-06-01"},{"accession":"0001628280-26-038499","document":"alny-20260520.htm","filed":"2026-05-27","form":"8-K","items":"5.02,5.07","report_date":"2026-05-20"},{"accession":"0001178670-26-000042","document":"xslF345X06/form4.xml","filed":"2026-05-22","form":"4","items":"","report_date":"2026-05-20"},{"accession":"0001178670-26-000041","document":"xslF345X06/form4.xml","filed":"2026-05-22","form":"4","items":"","report_date":"2026-05-20"},{"accession":"0001178670-26-000040","document":"xslF345X06/form4.xml","filed":"2026-05-22","form":"4","items":"","report_date":"2026-05-20"},{"accession":"0001178670-26-000039","document":"xslF345X06/form4.xml","filed":"2026-05-22","form":"4","items":"","report_date":"2026-05-20"},{"accession":"0001628280-26-028605","document":"alny-20260331.htm","filed":"2026-04-30","form":"10-Q","items":"","report_date":"2026-03-31"},{"accession":"0001628280-26-028601","document":"alny-20260430.htm","filed":"2026-04-30","form":"8-K","items":"2.02,9.01","report_date":"2026-04-30"},{"accession":"0001628280-26-023923","document":"alny-20260406.htm","filed":"2026-04-06","form":"DEF 14A","items":"","report_date":"2026-05-20"},{"accession":"0001628280-26-014728","document":"alny-20260302.htm","filed":"2026-03-04","form":"8-K","items":"5.02","report_date":"2026-03-02"},{"accession":"0001628280-26-007497","document":"alny-20251231.htm","filed":"2026-02-12","form":"10-K","items":"","report_date":"2025-12-31"},{"accession":"0001628280-26-007491","document":"alny-20260212.htm","filed":"2026-02-12","form":"8-K","items":"2.02,9.01","report_date":"2026-02-12"},{"accession":"0001628280-26-001755","document":"alny-20260111.htm","filed":"2026-01-12","form":"8-K","items":"2.02","report_date":"2026-01-11"},{"accession":"0001193125-25-315047","document":"d201569d8k.htm","filed":"2025-12-11","form":"8-K","items":"8.01,9.01","report_date":"2025-12-10"},{"accession":"0001628280-25-055084","document":"alny-20251202.htm","filed":"2025-12-03","form":"8-K","items":"5.02","report_date":"2025-12-02"},{"accession":"0001628280-25-047345","document":"alny-20250930.htm","filed":"2025-10-30","form":"10-Q","items":"","report_date":"2025-09-30"},{"accession":"0001628280-25-047342","document":"alny-20251030.htm","filed":"2025-10-30","form":"8-K","items":"2.02,9.01","report_date":"2025-10-30"},{"accession":"0001193125-25-230201","document":"d19737d8k.htm","filed":"2025-10-03","form":"8-K","items":"1.01,2.03,9.01","report_date":"2025-09-30"},{"accession":"0001193125-25-202366","document":"d949176d8k.htm","filed":"2025-09-12","form":"8-K","items":"1.01,2.03,3.02,8.01,9.01","report_date":"2025-09-12"},{"accession":"0001193125-25-199686","document":"d72540d8k.htm","filed":"2025-09-10","form":"8-K","items":"8.01,9.01","report_date":"2025-09-08"},{"accession":"0001178670-25-000090","document":"alny-20250630.htm","filed":"2025-07-31","form":"10-Q","items":"","report_date":"2025-06-30"},{"accession":"0001178670-25-000089","document":"alny-20250731.htm","filed":"2025-07-31","form":"8-K","items":"2.02,9.01","report_date":"2025-07-31"},{"accession":"0001178670-25-000076","document":"alny-20250612.htm","filed":"2025-06-18","form":"8-K","items":"5.02","report_date":"2025-06-12"},{"accession":"0001178670-25-000062","document":"alny-20250508.htm","filed":"2025-05-13","form":"8-K","items":"5.03,5.07","report_date":"2025-05-08"},{"accession":"0001178670-25-000052","document":"alny-20250331.htm","filed":"2025-05-01","form":"10-Q","items":"","report_date":"2025-03-31"},{"accession":"0001178670-25-000050","document":"alny-20250501.htm","filed":"2025-05-01","form":"8-K","items":"9.01","report_date":"2025-05-01"},{"accession":"0001178670-25-000040","document":"alny-20250324.htm","filed":"2025-03-24","form":"DEF 14A","items":"","report_date":"2025-05-08"},{"accession":"0001178670-25-000038","document":"alny-20250320.htm","filed":"2025-03-21","form":"8-K","items":"8.01","report_date":"2025-03-20"},{"accession":"0001178670-25-000031","document":"alny-20250303.htm","filed":"2025-03-05","form":"8-K","items":"5.02","report_date":"2025-03-03"},{"accession":"0001178670-25-000026","document":"alny-20241231.htm","filed":"2025-02-13","form":"10-K","items":"","report_date":"2024-12-31"},{"accession":"0001178670-25-000020","document":"alny-20250213.htm","filed":"2025-02-13","form":"8-K","items":"9.01","report_date":"2025-02-13"},{"accession":"0001178670-25-000008","document":"alny-20250112.htm","filed":"2025-01-13","form":"8-K","items":"2.02","report_date":"2025-01-12"},{"accession":"0000315066-24-002658","document":"filing.txt","filed":"2024-11-12","form":"SC 13G/A","items":"","report_date":""},{"accession":"0000902219-24-000383","document":"SEC13G_Filing.htm","filed":"2024-11-08","form":"SC 13G/A","items":"","report_date":""},{"accession":"0001178670-24-000053","document":"alny-20240930.htm","filed":"2024-10-31","form":"10-Q","items":"","report_date":"2024-09-30"}],"former_names":[{"from":"2002-07-09T04:00:00.000Z","name":"ALNYLAM PHARMACEUTICALS INC","to":"2004-07-02T04:00:00.000Z"}],"gleif_parents":[],"headquarters":[{"latitude":42.375,"longitude":-71.106111111111,"name":"Cambridge","precision":"headquarters locality","source":"wikidata","url":"https://www.wikidata.org/wiki/Q49111"}],"insiders":[{"accession":"0001178670-26-000065","acquired_disposed":"A","code":"A","date":"2026-09-19","derivative":false,"filed":"2026-09-22","following_shares":"95802.0","form":"4","owners":["Greenstreet Yvonne"],"plan_10b5_1":false,"price":"0.0","security":"Common Stock","shares":"107.0"}],"legal_name":"Alnylam Pharmaceuticals, Inc.","lei":"529900S3ZI14OWRJII50","lei_status":"ISSUED","lei_updated_at":"2026-07-02T13:58:02Z","names":[{"entity_id":null,"kind":"alias","name":"Alnylam Pharmaceuticals","source":"wikidata"},{"entity_id":null,"kind":"alias","name":"Alnylam","source":"wikidata"}],"parent_exceptions":["direct-parent: no parent LEI supplied","ultimate-parent: no parent LEI supplied"],"parents":[],"wikidata_id":"Q16974682"},"research_built_at":"2026-10-23T06:11:20.354311+00:00","reviewed_events":[],"reviewed_events_coverage":"selective; not a complete event history; accounting series not reconciled","sources":[{"coverage":"8022 issuers; up to 32 recent company reports and 8 ownership-change filings per issuer","id":"sec","license":"SEC public-information reuse","license_url":"https://www.sec.gov/about/privacy-information","name":"SEC submissions","retrieved_at":"2026-10-23T06:12:00.336203+00:00","status":"ok","url":"https://www.sec.gov/search-filings/edgar-application-programming-interfaces"},{"coverage":"1658 unambiguous CIK-linked entities; coverage is incomplete","id":"wikidata","license":"CC0-1.0","license_url":"https://www.wikidata.org/wiki/Wikidata:Licensing","name":"Wikidata structured data","retrieved_at":"2026-10-23T06:12:25.714432+00:00","status":"ok","url":"https://www.wikidata.org/"},{"coverage":"1197 checked identities; 0 unavailable records","id":"gleif","license":"CC0-1.0","license_url":"https://www.gleif.org/en/meta/lei-data-terms-of-use","name":"GLEIF legal entity reference data","retrieved_at":"2026-10-23T06:14:03.968440+00:00","status":"ok","url":"https://www.gleif.org/en/lei-data/gleif-api"},{"coverage":"4 selected series; gaps remain missing","id":"fed","license":"Public domain (selected government series)","license_url":"https://www.federalreserve.gov/disclaimer.htm","name":"Federal Reserve Board H.15","retrieved_at":"2026-10-23T06:27:13.562713+00:00","status":"ok","url":"https://www.federalreserve.gov/releases/h15/"},{"coverage":"9 selected series; gaps remain missing","id":"bls","license":"Public domain","license_url":"https://www.bls.gov/opub/copyright-information.htm","name":"Bureau of Labor Statistics","retrieved_at":"2026-10-23T06:27:14.878114+00:00","status":"ok","url":"https://www.bls.gov/developers/"},{"coverage":"2026 Q3: filings in this completed quarter; not a live transaction feed","id":"insiders","license":"SEC public-information reuse","license_url":"https://www.sec.gov/about/privacy-information","name":"SEC insider transactions","retrieved_at":"2026-10-23T06:12:21.860189+00:00","status":"ok","url":"https://www.sec.gov/data-research/sec-markets-data/insider-transactions-data-sets"}]}