{"cik":1666138,"company":{"entity_status":null,"filings":[{"accession":"0002035295-26-000008","document":"xslF345X06/wk-form4_1792615514.xml","filed":"2026-10-21","form":"4","items":"","report_date":"2026-10-19"},{"accession":"0002034019-26-000007","document":"xslF345X06/wk-form4_1792615555.xml","filed":"2026-10-21","form":"4","items":"","report_date":"2026-10-19"},{"accession":"0001845216-26-000009","document":"xslF345X06/wk-form4_1792615521.xml","filed":"2026-10-21","form":"4","items":"","report_date":"2026-10-19"},{"accession":"0001825727-26-000009","document":"xslF345X06/wk-form4_1792615484.xml","filed":"2026-10-21","form":"4","items":"","report_date":"2026-10-19"},{"accession":"0001777650-26-000007","document":"xslF345X06/wk-form4_1792615544.xml","filed":"2026-10-21","form":"4","items":"","report_date":"2026-10-19"},{"accession":"0001769052-26-000011","document":"xslF345X06/wk-form4_1792615538.xml","filed":"2026-10-21","form":"4","items":"","report_date":"2026-10-19"},{"accession":"0001757393-26-000009","document":"xslF345X06/wk-form4_1792615561.xml","filed":"2026-10-21","form":"4","items":"","report_date":"2026-10-19"},{"accession":"0001713397-26-000011","document":"xslF345X06/wk-form4_1792615492.xml","filed":"2026-10-21","form":"4","items":"","report_date":"2026-10-19"},{"accession":"0001666138-26-000041","document":"atkr-20261019.htm","filed":"2026-10-19","form":"8-K","items":"1.02,2.01,3.01,3.03,5.01,5.02,5.03,9.01","report_date":"2026-10-19"},{"accession":"0001666138-26-000039","document":"atkr-20261008.htm","filed":"2026-10-08","form":"8-K","items":"7.01,9.01","report_date":"2026-10-08"},{"accession":"0001666138-26-000037","document":"atkr-20261007.htm","filed":"2026-10-07","form":"8-K","items":"5.07,9.01","report_date":"2026-10-07"},{"accession":"0001666138-26-000027","document":"atkr-20260915.htm","filed":"2026-09-15","form":"8-K","items":"8.01,9.01","report_date":"2026-09-15"},{"accession":"0001628280-26-052084","document":"atkr-20260626.htm","filed":"2026-08-04","form":"10-Q","items":"","report_date":"2026-06-26"},{"accession":"0001666138-26-000016","document":"atkr-20260803.htm","filed":"2026-08-03","form":"8-K","items":"1.01,7.01,9.01","report_date":"2026-08-03"},{"accession":"0001628280-26-051510","document":"atkr-20260803.htm","filed":"2026-08-03","form":"8-K","items":"2.02,9.01","report_date":"2026-08-03"},{"accession":"0001666138-26-000014","document":"atkr-20260604.htm","filed":"2026-06-04","form":"8-K","items":"1.01,9.01","report_date":"2026-06-04"},{"accession":"0001628280-26-030764","document":"atkr-20260327.htm","filed":"2026-05-06","form":"10-Q","items":"","report_date":"2026-03-27"},{"accession":"0001628280-26-030054","document":"atkr-20260505.htm","filed":"2026-05-05","form":"8-K","items":"2.02,7.01,9.01","report_date":"2026-05-05"},{"accession":"0001666138-26-000010","document":"atkr-20260429.htm","filed":"2026-04-29","form":"8-K","items":"1.01,9.01","report_date":"2026-04-29"},{"accession":"0001666138-26-000007","document":"atkr-20260408.htm","filed":"2026-04-08","form":"8-K","items":"7.01,9.01","report_date":"2026-04-08"},{"accession":"0001628280-26-004737","document":"atkr-20260203.htm","filed":"2026-02-03","form":"8-K","items":"2.02,7.01,9.01","report_date":"2026-02-03"},{"accession":"0001628280-26-004734","document":"atkr-20251226.htm","filed":"2026-02-03","form":"10-Q","items":"","report_date":"2025-12-26"},{"accession":"0001666138-26-000003","document":"atkr-20260202.htm","filed":"2026-02-02","form":"8-K","items":"5.07,9.01","report_date":"2026-02-02"},{"accession":"0001666138-25-000204","document":"atkr-20251212.htm","filed":"2025-12-12","form":"DEF 14A","items":"","report_date":"2025-09-30"},{"accession":"0001666138-25-000197","document":"atkr-20251202.htm","filed":"2025-12-02","form":"8-K","items":"5.02,9.01","report_date":"2025-12-02"},{"accession":"0001628280-25-054049","document":"atkr-20250930.htm","filed":"2025-11-26","form":"10-K","items":"","report_date":"2025-09-30"},{"accession":"0001666138-25-000195","document":"atkr-20251120.htm","filed":"2025-11-21","form":"8-K","items":"1.01,7.01,9.01","report_date":"2025-11-20"},{"accession":"0001628280-25-053301","document":"atkr-20251120.htm","filed":"2025-11-20","form":"8-K","items":"2.02,7.01,9.01","report_date":"2025-11-20"},{"accession":"0001666138-25-000192","document":"atkr-20251003.htm","filed":"2025-10-03","form":"8-K","items":"2.05","report_date":"2025-10-03"},{"accession":"0001666138-25-000189","document":"atkr-20250929.htm","filed":"2025-09-29","form":"8-K","items":"1.01,2.03,9.01","report_date":"2025-09-29"},{"accession":"0001666138-25-000157","document":"atkr-20250805.htm","filed":"2025-08-05","form":"8-K","items":"5.02,7.01,9.01","report_date":"2025-08-05"},{"accession":"0001666138-25-000156","document":"atkr-20250627.htm","filed":"2025-08-05","form":"10-Q","items":"","report_date":"2025-06-27"},{"accession":"0001666138-25-000153","document":"atkr-20250805.htm","filed":"2025-08-05","form":"8-K","items":"2.02,7.01,9.01","report_date":"2025-08-05"},{"accession":"0001666138-25-000108","document":"atkr-20250506.htm","filed":"2025-05-06","form":"8-K","items":"2.02,7.01,9.01","report_date":"2025-05-06"},{"accession":"0001666138-25-000105","document":"atkr-20250328.htm","filed":"2025-05-06","form":"10-Q","items":"","report_date":"2025-03-28"},{"accession":"0001666138-25-000097","document":"atkr-20250505.htm","filed":"2025-05-05","form":"8-K","items":"1.01,9.01","report_date":"2025-05-05"},{"accession":"0001666138-25-000095","document":"atkr-20250421.htm","filed":"2025-04-21","form":"8-K","items":"2.02,2.06,7.01,9.01","report_date":"2025-04-21"},{"accession":"0001666138-25-000038","document":"atkr-20250214.htm","filed":"2025-02-14","form":"8-K","items":"8.01","report_date":"2025-02-14"},{"accession":"0001666138-25-000030","document":"atkr-20241227.htm","filed":"2025-02-04","form":"10-Q","items":"","report_date":"2024-12-27"},{"accession":"0001666138-25-000028","document":"atkr-20250204.htm","filed":"2025-02-04","form":"8-K","items":"2.02,7.01,9.01","report_date":"2025-02-04"}],"former_names":[{"from":"2016-03-04T05:00:00.000Z","name":"Atkore International Group Inc.","to":"2021-02-11T05:00:00.000Z"}],"gleif_parents":[],"headquarters":[],"insiders":[{"accession":"0002035295-26-000006","acquired_disposed":"A","code":"A","date":"2026-08-28","derivative":false,"filed":"2026-08-31","following_shares":"18928.05","form":"4","owners":["Deitzer John Michael"],"plan_10b5_1":false,"price":"0.0","security":"Common Stock","shares":"47.31"},{"accession":"0002034019-26-000005","acquired_disposed":"A","code":"A","date":"2026-08-28","derivative":false,"filed":"2026-08-31","following_shares":"5449.44","form":"4","owners":["Alvey James William"],"plan_10b5_1":false,"price":"0.0","security":"Common Stock","shares":"9.35"},{"accession":"0001845216-26-000007","acquired_disposed":"A","code":"A","date":"2026-08-28","derivative":false,"filed":"2026-08-31","following_shares":"2843.56","form":"4","owners":["Edmonds Franklin S. Jr."],"plan_10b5_1":false,"price":"0.0","security":"Common Stock","shares":"9.99"},{"accession":"0001825727-26-000007","acquired_disposed":"A","code":"A","date":"2026-08-28","derivative":false,"filed":"2026-08-31","following_shares":"61411.17","form":"4","owners":["Pregenzer John W"],"plan_10b5_1":false,"price":"0.0","security":"Common Stock","shares":"82.08"},{"accession":"0001777650-26-000005","acquired_disposed":"A","code":"A","date":"2026-08-28","derivative":false,"filed":"2026-08-31","following_shares":"36062.69","form":"4","owners":["Lowe LeAngela W."],"plan_10b5_1":false,"price":"0.0","security":"Common Stock","shares":"36.0"},{"accession":"0001769052-26-000009","acquired_disposed":"A","code":"A","date":"2026-08-28","derivative":false,"filed":"2026-08-31","following_shares":"35849.81","form":"4","owners":["Lamps Mark F."],"plan_10b5_1":false,"price":"0.0","security":"Common Stock","shares":"47.27"},{"accession":"0001757393-26-000007","acquired_disposed":"A","code":"A","date":"2026-08-28","derivative":false,"filed":"2026-08-31","following_shares":"6099.5","form":"4","owners":["Edwards Barbara Joanne"],"plan_10b5_1":false,"price":"0.0","security":"Common Stock","shares":"18.13"},{"accession":"0001713397-26-000009","acquired_disposed":"A","code":"A","date":"2026-08-28","derivative":false,"filed":"2026-08-31","following_shares":"18749.75","form":"4","owners":["Kershaw Justin A"],"plan_10b5_1":false,"price":"0.0","security":"Common Stock","shares":"65.87"},{"accession":"0001713395-26-000009","acquired_disposed":"A","code":"A","date":"2026-08-28","derivative":false,"filed":"2026-08-31","following_shares":"17190.94","form":"4","owners":["James Wilbert W Jr"],"plan_10b5_1":false,"price":"0.0","security":"Common Stock","shares":"60.39"},{"accession":"0001674332-26-000007","acquired_disposed":"A","code":"A","date":"2026-08-28","derivative":false,"filed":"2026-08-31","following_shares":"123652.86","form":"4","owners":["Waltz William E Jr."],"plan_10b5_1":false,"price":"0.0","security":"Common Stock","shares":"241.52"},{"accession":"0001674314-26-000005","acquired_disposed":"A","code":"A","date":"2026-08-28","derivative":false,"filed":"2026-08-31","following_shares":"32666.47","form":"4","owners":["Kelly Daniel S"],"plan_10b5_1":false,"price":"0.0","security":"Common Stock","shares":"36.37"},{"accession":"0001446066-26-000008","acquired_disposed":"A","code":"A","date":"2026-08-28","derivative":false,"filed":"2026-08-31","following_shares":"23993.81","form":"4","owners":["Zeffiro A Mark"],"plan_10b5_1":false,"price":"0.0","security":"Common Stock","shares":"48.35"},{"accession":"0001441619-26-000007","acquired_disposed":"A","code":"A","date":"2026-08-28","derivative":false,"filed":"2026-08-31","following_shares":"20615.83","form":"4","owners":["WYNN BETTY R."],"plan_10b5_1":false,"price":"0.0","security":"Common Stock","shares":"27.88"},{"accession":"0001224118-26-000007","acquired_disposed":"A","code":"A","date":"2026-08-28","derivative":false,"filed":"2026-08-31","following_shares":"32724.08","form":"4","owners":["MUSE SCOTT H"],"plan_10b5_1":false,"price":"0.0","security":"Common Stock","shares":"94.95"},{"accession":"0001218799-26-000007","acquired_disposed":"A","code":"A","date":"2026-08-28","derivative":false,"filed":"2026-08-31","following_shares":"30655.94","form":"4","owners":["Isbell Jeri L"],"plan_10b5_1":false,"price":"0.0","security":"Common Stock","shares":"97.87"},{"accession":"0001189053-26-000010","acquired_disposed":"A","code":"A","date":"2026-08-28","derivative":false,"filed":"2026-08-31","following_shares":"22187.33","form":"4","owners":["SCHROCK MICHAEL V"],"plan_10b5_1":false,"price":"0.0","security":"Common Stock","shares":"8.09"},{"accession":"0001769052-26-000008","acquired_disposed":"D","code":"S","date":"2026-08-10","derivative":false,"filed":"2026-08-10","following_shares":"35802.54","form":"4","owners":["Lamps Mark F."],"plan_10b5_1":false,"price":"93.75","security":"Common Stock","shares":"300.0"}],"legal_name":null,"lei":null,"lei_status":null,"lei_updated_at":null,"names":[],"parent_exceptions":[],"parents":[],"wikidata_id":null},"research_built_at":"2026-10-24T06:12:29.845001+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":"2026-10-24T06:12:42.213355+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"}]}