{"cik":1921963,"company":{"entity_status":null,"filings":[{"accession":"0001989065-26-000010","document":"xslF345X06/wk-form4_1787073783.xml","filed":"2026-08-18","form":"4","items":"","report_date":"2026-08-17"},{"accession":"0001921963-26-000071","document":"atmu-20260814.htm","filed":"2026-08-14","form":"8-K","items":"7.01,9.01","report_date":"2026-08-14"},{"accession":"0001432316-26-000007","document":"xslF345X06/wk-form4_1786646937.xml","filed":"2026-08-13","form":"4","items":"","report_date":"2026-08-12"},{"accession":"0001921963-26-000069","document":"atmu-20260630.htm","filed":"2026-08-07","form":"10-Q","items":"","report_date":"2026-06-30"},{"accession":"0001921963-26-000065","document":"atmu-20260807.htm","filed":"2026-08-07","form":"8-K","items":"2.02,9.01","report_date":"2026-08-07"},{"accession":"0001989065-26-000008","document":"xslF345X06/wk-form4_1780439313.xml","filed":"2026-06-02","form":"4","items":"","report_date":"2026-06-01"},{"accession":"0001978216-26-000008","document":"xslF345X06/wk-form4_1780439073.xml","filed":"2026-06-02","form":"4","items":"","report_date":"2026-06-01"},{"accession":"0001977908-26-000008","document":"xslF345X06/wk-form4_1780439153.xml","filed":"2026-06-02","form":"4","items":"","report_date":"2026-06-01"},{"accession":"0001976792-26-000008","document":"xslF345X06/wk-form4_1780438980.xml","filed":"2026-06-02","form":"4","items":"","report_date":"2026-06-01"},{"accession":"0002108958-26-000006","document":"xslF345X06/wk-form4_1778685089.xml","filed":"2026-05-13","form":"4","items":"","report_date":"2026-05-12"},{"accession":"0001978207-26-000002","document":"xslF345X06/wk-form4_1778683557.xml","filed":"2026-05-13","form":"4","items":"","report_date":"2026-05-12"},{"accession":"0001921963-26-000054","document":"atmu-20260513.htm","filed":"2026-05-13","form":"8-K","items":"7.01,9.01","report_date":"2026-05-13"},{"accession":"0001921963-26-000051","document":"atmu-20260512.htm","filed":"2026-05-12","form":"8-K","items":"5.07","report_date":"2026-05-12"},{"accession":"0001921963-26-000045","document":"atmu-20260508.htm","filed":"2026-05-11","form":"8-K","items":"5.02","report_date":"2026-05-08"},{"accession":"0001921963-26-000042","document":"atmu-20260331.htm","filed":"2026-05-01","form":"10-Q","items":"","report_date":"2026-03-31"},{"accession":"0001921963-26-000039","document":"atmu-20260501.htm","filed":"2026-05-01","form":"8-K","items":"2.02,9.01","report_date":"2026-05-01"},{"accession":"0001921963-26-000029","document":"atmu-20260330.htm","filed":"2026-03-30","form":"DEF 14A","items":"","report_date":"2026-05-12"},{"accession":"0001921963-26-000015","document":"atmu-20251231.htm","filed":"2026-02-13","form":"10-K","items":"","report_date":"2025-12-31"},{"accession":"0001921963-26-000012","document":"atmu-20260213.htm","filed":"2026-02-13","form":"8-K","items":"2.02,9.01","report_date":"2026-02-13"},{"accession":"0001921963-26-000009","document":"atmu-20260209.htm","filed":"2026-02-09","form":"8-K","items":"7.01,9.01","report_date":"2026-02-09"},{"accession":"0001921963-26-000008","document":"atmu-20260205.htm","filed":"2026-02-06","form":"8-K","items":"5.02","report_date":"2026-02-05"},{"accession":"0001921963-26-000004","document":"atmu-20260107.htm","filed":"2026-01-07","form":"8-K","items":"1.01,2.03,7.01,9.01","report_date":"2026-01-07"},{"accession":"0001213900-25-113838","document":"ea0266850-8k_atmus.htm","filed":"2025-11-24","form":"8-K","items":"1.01,2.03,7.01,9.01","report_date":"2025-11-21"},{"accession":"0001921963-25-000136","document":"atmu-20251112.htm","filed":"2025-11-12","form":"8-K","items":"7.01,9.01","report_date":"2025-11-12"},{"accession":"0001921963-25-000134","document":"atmu-20250930.htm","filed":"2025-11-07","form":"10-Q","items":"","report_date":"2025-09-30"},{"accession":"0001921963-25-000132","document":"atmu-20251107.htm","filed":"2025-11-07","form":"8-K","items":"2.02,9.01","report_date":"2025-11-07"},{"accession":"0001921963-25-000124","document":"atmu-20250813.htm","filed":"2025-08-13","form":"8-K","items":"7.01,9.01","report_date":"2025-08-13"},{"accession":"0001921963-25-000121","document":"atmu-20250630.htm","filed":"2025-08-08","form":"10-Q","items":"","report_date":"2025-06-30"},{"accession":"0001921963-25-000119","document":"atmu-20250808.htm","filed":"2025-08-08","form":"8-K","items":"2.02,9.01","report_date":"2025-08-08"},{"accession":"0001921963-25-000110","document":"atmu-20250520.htm","filed":"2025-05-27","form":"8-K","items":"5.03,5.07","report_date":"2025-05-20"},{"accession":"0001921963-25-000091","document":"atmu-20250521.htm","filed":"2025-05-21","form":"8-K","items":"7.01,9.01","report_date":"2025-05-21"},{"accession":"0001921963-25-000081","document":"atmu-20250508.htm","filed":"2025-05-13","form":"8-K","items":"5.02,9.01","report_date":"2025-05-08"},{"accession":"0001921963-25-000075","document":"atmu-20250331.htm","filed":"2025-05-02","form":"10-Q","items":"","report_date":"2025-03-31"},{"accession":"0001921963-25-000072","document":"atmu-20250502.htm","filed":"2025-05-02","form":"8-K","items":"2.02,9.01","report_date":"2025-05-02"},{"accession":"0001921963-25-000055","document":"atmu-20250401.htm","filed":"2025-04-02","form":"DEF 14A","items":"","report_date":"2025-05-13"},{"accession":"0001921963-25-000045","document":"atmu-20250317.htm","filed":"2025-03-17","form":"DEF 14A","items":"","report_date":"2024-12-31"},{"accession":"0001921963-25-000029","document":"atmu-20241231.htm","filed":"2025-02-21","form":"10-K","items":"","report_date":"2024-12-31"},{"accession":"0001921963-25-000027","document":"atmu-20250221.htm","filed":"2025-02-21","form":"8-K","items":"2.02,9.01","report_date":"2025-02-21"},{"accession":"0001921963-25-000012","document":"atmu-20250219.htm","filed":"2025-02-19","form":"8-K","items":"7.01,9.01","report_date":"2025-02-19"},{"accession":"0000315066-24-002659","document":"filing.txt","filed":"2024-11-12","form":"SC 13G","items":"","report_date":""}],"former_names":[{"from":"2022-04-21T04:00:00.000Z","name":"FILT Red, Inc.","to":"2022-07-26T04:00:00.000Z"}],"gleif_parents":[],"headquarters":[],"insiders":[{"accession":"0001989065-26-000010","acquired_disposed":"D","code":"S","date":"2026-08-17","derivative":false,"filed":"2026-08-18","following_shares":"46875.0","form":"4","owners":["Swan Renee"],"plan_10b5_1":false,"price":"50.89","security":"Common Stock","shares":"3870.0"},{"accession":"0001432316-26-000007","acquired_disposed":"A","code":"P","date":"2026-08-12","derivative":false,"filed":"2026-08-13","following_shares":"40588.0","form":"4","owners":["Macadam Stephen E."],"plan_10b5_1":false,"price":"49.78","security":"Common Stock","shares":"2000.0"}],"legal_name":null,"lei":null,"lei_status":null,"lei_updated_at":null,"names":[],"parent_exceptions":[],"parents":[],"wikidata_id":null},"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"}]}