{"cik":1471265,"company":{"entity_status":null,"filings":[{"accession":"0001968908-26-000012","document":"xslF345X06/wk-form4a_1792095047.xml","filed":"2026-10-15","form":"4/A","items":"","report_date":"2026-03-09"},{"accession":"0001809099-26-000019","document":"xslF345X06/wk-form4a_1792095123.xml","filed":"2026-10-15","form":"4/A","items":"","report_date":"2026-05-18"},{"accession":"0001809099-26-000018","document":"xslF345X06/wk-form4a_1792095082.xml","filed":"2026-10-15","form":"4/A","items":"","report_date":"2026-03-09"},{"accession":"0001471265-26-000040","document":"nwbi-20260908.htm","filed":"2026-09-08","form":"8-K","items":"7.01,9.01","report_date":"2026-09-08"},{"accession":"0001785665-26-000008","document":"xslF345X06/wk-form4_1787258680.xml","filed":"2026-08-20","form":"4","items":"","report_date":"2026-08-20"},{"accession":"0001471265-26-000032","document":"nwbi-20260630.htm","filed":"2026-08-05","form":"10-Q","items":"","report_date":"2026-06-30"},{"accession":"0001730259-26-000013","document":"xslF345X06/wk-form4_1785874650.xml","filed":"2026-08-04","form":"4","items":"","report_date":"2026-07-31"},{"accession":"0001943943-26-000014","document":"xslF345X06/wk-form4_1785524990.xml","filed":"2026-07-31","form":"4","items":"","report_date":"2026-07-30"},{"accession":"0001576199-26-000006","document":"xslF345X06/wk-form4_1785524935.xml","filed":"2026-07-31","form":"4","items":"","report_date":"2026-07-29"},{"accession":"0001471265-26-000030","document":"nwbi-20260727.htm","filed":"2026-07-27","form":"8-K","items":"2.02,9.01","report_date":"2026-07-27"},{"accession":"0001471265-26-000028","document":"nwbi-20260722.htm","filed":"2026-07-24","form":"8-K","items":"5.02,9.01","report_date":"2026-07-22"},{"accession":"0001981392-26-000008","document":"xslF345X06/wk-form4_1782310498.xml","filed":"2026-06-24","form":"4","items":"","report_date":"2026-06-22"},{"accession":"0001471265-26-000022","document":"nwbi-20260520.htm","filed":"2026-05-26","form":"8-K","items":"5.02,5.07,9.01","report_date":"2026-05-20"},{"accession":"0001471265-26-000017","document":"nwbi-20260331.htm","filed":"2026-05-07","form":"10-Q","items":"","report_date":"2026-03-31"},{"accession":"0001471265-26-000014","document":"nwbi-20260427.htm","filed":"2026-04-27","form":"8-K","items":"2.02,9.01","report_date":"2026-04-27"},{"accession":"0001193125-26-148973","document":"d908286ddef14a.htm","filed":"2026-04-09","form":"DEF 14A","items":"","report_date":"2026-05-20"},{"accession":"0001471265-26-000008","document":"nwbi-20251231.htm","filed":"2026-02-25","form":"10-K","items":"","report_date":"2025-12-31"},{"accession":"0001471265-26-000003","document":"nwbi-20260126.htm","filed":"2026-01-26","form":"8-K","items":"2.02,9.01","report_date":"2026-01-26"},{"accession":"0001471265-25-000161","document":"nwbi-20250930.htm","filed":"2025-11-10","form":"10-Q","items":"","report_date":"2025-09-30"},{"accession":"0001471265-25-000156","document":"nwbi-20251027.htm","filed":"2025-10-27","form":"8-K","items":"2.02,9.01","report_date":"2025-10-27"},{"accession":"0001471265-25-000137","document":"nwbi-20250630.htm","filed":"2025-08-05","form":"10-Q","items":"","report_date":"2025-06-30"},{"accession":"0001471265-25-000130","document":"nwbi-20250729.htm","filed":"2025-07-29","form":"8-K","items":"2.02,9.01","report_date":"2025-07-29"},{"accession":"0001471265-25-000123","document":"nwbi-20250725.htm","filed":"2025-07-28","form":"8-K","items":"2.01,5.02,8.01,9.01","report_date":"2025-07-25"},{"accession":"0001471265-25-000080","document":"nwbi-20250512.htm","filed":"2025-05-12","form":"8-K","items":"8.01,9.01","report_date":"2025-05-12"},{"accession":"0001471265-25-000077","document":"nwbi-20250331.htm","filed":"2025-05-06","form":"10-Q","items":"","report_date":"2025-03-31"},{"accession":"0001471265-25-000073","document":"nwbi-20250428.htm","filed":"2025-04-28","form":"8-K","items":"2.02,9.01","report_date":"2025-04-28"},{"accession":"0001471265-25-000071","document":"nwbi-20250423.htm","filed":"2025-04-23","form":"8-K","items":"8.01,9.01","report_date":"2025-04-23"},{"accession":"0001471265-25-000067","document":"nwbi-20250417.htm","filed":"2025-04-18","form":"8-K","items":"5.07,9.01","report_date":"2025-04-17"},{"accession":"0001193125-25-049104","document":"d890666ddef14a.htm","filed":"2025-03-07","form":"DEF 14A","items":"","report_date":"2025-04-17"},{"accession":"0001471265-25-000016","document":"nwbi-20241231.htm","filed":"2025-02-25","form":"10-K","items":"","report_date":"2024-12-31"},{"accession":"0001471265-25-000005","document":"nwbi-20250124.htm","filed":"2025-01-24","form":"8-K","items":"2.02,9.01","report_date":"2025-01-24"},{"accession":"0001471265-24-000142","document":"nwbi-20241216.htm","filed":"2024-12-20","form":"8-K","items":"1.01,9.01","report_date":"2024-12-16"},{"accession":"0001471265-24-000140","document":"nwbi-20241216.htm","filed":"2024-12-17","form":"8-K","items":"7.01,8.01,9.01","report_date":"2024-12-16"},{"accession":"0000950103-24-016679","document":"dp220947_8k.htm","filed":"2024-11-22","form":"8-K","items":"5.02,5.03,9.01","report_date":"2024-11-20"},{"accession":"0001471265-24-000136","document":"nwbi-20240930.htm","filed":"2024-11-07","form":"10-Q","items":"","report_date":"2024-09-30"},{"accession":"0001471265-24-000133","document":"nwbi-20241029.htm","filed":"2024-10-29","form":"8-K","items":"2.02,9.01","report_date":"2024-10-29"},{"accession":"0001471265-24-000131","document":"nwbi-20241008.htm","filed":"2024-10-08","form":"8-K","items":"8.01,9.01","report_date":"2024-10-08"},{"accession":"0001471265-24-000122","document":"nwbi-20240805.htm","filed":"2024-08-05","form":"8-K","items":"8.01,9.01","report_date":"2024-08-05"},{"accession":"0001471265-24-000121","document":"nwbi-20240630.htm","filed":"2024-08-05","form":"10-Q","items":"","report_date":"2024-06-30"},{"accession":"0001471265-24-000106","document":"nwbi-20240723.htm","filed":"2024-07-23","form":"8-K","items":"2.02,9.01","report_date":"2024-07-23"}],"former_names":[],"gleif_parents":[],"headquarters":[],"insiders":[{"accession":"0001785665-26-000008","acquired_disposed":"A","code":"P","date":"2026-08-20","derivative":false,"filed":"2026-08-20","following_shares":"385.0","form":"4","owners":["Kranich Charles E."],"plan_10b5_1":false,"price":"15.28","security":"Northwest Bancshares, Inc. Common Stock","shares":"385.0"},{"accession":"0001785665-26-000008","acquired_disposed":"A","code":"P","date":"2026-08-20","derivative":false,"filed":"2026-08-20","following_shares":"101636.0","form":"4","owners":["Kranich Charles E."],"plan_10b5_1":false,"price":"15.28","security":"Northwest Bancshares, Inc. Common Stock","shares":"1250.0"},{"accession":"0001730259-26-000013","acquired_disposed":"A","code":"A","date":"2026-07-31","derivative":false,"filed":"2026-08-04","following_shares":"328791.64","form":"4","owners":["Torchio Louis J"],"plan_10b5_1":false,"price":"0.0","security":"Northwest Bancshares, Inc. Common Stock","shares":"125298.0"},{"accession":"0001943943-26-000014","acquired_disposed":"A","code":"M","date":"2026-07-30","derivative":false,"filed":"2026-07-31","following_shares":"50285.37","form":"4","owners":["Colestro James M"],"plan_10b5_1":false,"price":"13.68","security":"Northwest Bancshares, Inc. Common Stock","shares":"6528.0"},{"accession":"0001943943-26-000014","acquired_disposed":"A","code":"M","date":"2026-07-30","derivative":false,"filed":"2026-07-31","following_shares":"43757.37","form":"4","owners":["Colestro James M"],"plan_10b5_1":false,"price":"9.71","security":"Northwest Bancshares, Inc. Common Stock","shares":"4568.0"},{"accession":"0001943943-26-000014","acquired_disposed":"A","code":"M","date":"2026-07-30","derivative":false,"filed":"2026-07-31","following_shares":"39189.37","form":"4","owners":["Colestro James M"],"plan_10b5_1":false,"price":"15.57","security":"Northwest Bancshares, Inc. Common Stock","shares":"2178.0"},{"accession":"0001943943-26-000014","acquired_disposed":"D","code":"S","date":"2026-07-30","derivative":false,"filed":"2026-07-31","following_shares":"37011.37","form":"4","owners":["Colestro James M"],"plan_10b5_1":false,"price":"15.77","security":"Northwest Bancshares, Inc. Common Stock","shares":"13274.0"},{"accession":"0001943943-26-000014","acquired_disposed":"D","code":"M","date":"2026-07-30","derivative":true,"filed":"2026-07-31","following_shares":"0.0","form":"4","owners":["Colestro James M"],"plan_10b5_1":false,"price":"13.68","security":"Stock Options (Right to Buy)","shares":"6528.0"},{"accession":"0001943943-26-000014","acquired_disposed":"D","code":"M","date":"2026-07-30","derivative":true,"filed":"2026-07-31","following_shares":"0.0","form":"4","owners":["Colestro James M"],"plan_10b5_1":false,"price":"15.57","security":"Stock Options (Right to Buy)","shares":"2178.0"},{"accession":"0001943943-26-000014","acquired_disposed":"D","code":"M","date":"2026-07-30","derivative":true,"filed":"2026-07-31","following_shares":"0.0","form":"4","owners":["Colestro James M"],"plan_10b5_1":false,"price":"9.71","security":"Stock Options (Right to Buy)","shares":"4568.0"},{"accession":"0001576199-26-000006","acquired_disposed":"D","code":"F","date":"2026-07-29","derivative":false,"filed":"2026-07-31","following_shares":"16540.29","form":"4","owners":["Canfield Joseph D Jr"],"plan_10b5_1":false,"price":"15.89","security":"Northwest Bancshares, Inc. Common Stock","shares":"974.0"}],"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"}]}