{"schema_version":"secwatch.filing_event.v1","accession":"0000950170-22-023662","form_type":"8-K/A","ticker":"ADTN","cik":"0000926282","company_name":"ADTRAN Holdings, Inc.","filed_at":"2022-11-09T23:59:59+00:00","discovered_at":"2026-05-14T18:03:54.073625+00:00","generated_at":"2026-06-22T02:35:29.557618+00:00","sec_items":["2.02"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.4,"calibrated_materiality_score":0.4,"confidence":"high","headline":"ADTRAN Holdings files 8-K/A to correct segment cost of revenue allocation for Q3 2022","bullets":["Corrected Network Solutions segment cost of revenue: Q3 $222.6M, 9M $413.2M.","Corrected Services & Support segment cost of revenue: Q3 $15.1M, 9M $34.2M.","Total cost of revenue unchanged; no other financial figures affected.","Amendment to Nov 7, 2022 earnings press release; segment-level allocation error."],"urls":{"canonical":"https://secwatch.observer/filing/0000950170-22-023662","json":"https://secwatch.observer/filing/0000950170-22-023662.json","markdown":"https://secwatch.observer/filing/0000950170-22-023662.md","text":"https://secwatch.observer/filing/0000950170-22-023662.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/926282/000095017022023662/0000950170-22-023662-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/926282/000095017022023662/adtn-20221107.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-22T02:35:29.557618+00:00"},"review":{"review_status":"machine_generated","human_reviewed":false,"corrected":false,"correction_note":null,"correction_timestamp":null,"superseded_by":null,"related_filings":[]},"source_grounded_claims":[{"claim_id":"f40df4f5fc49cd26bdfe4ea77848a4714268de36","claim":"ADTRAN Holdings, Inc. reported financial results for the quarter and nine months ended September 30, 2022.","evidence_excerpt":"a press release issued on November 7, 2022 (the “Press Release”) that reported unaudited condensed consolidated financial results of the Company for the quarter and nine months ended September 30, 2022","evidence_source":"SEC 8-K Item 2.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/926282/000095017022023662/0000950170-22-023662-index.htm","confidence":0.9,"family_label":"Earnings Releases","details":[{"label":"Period","value":"the quarter and nine months ended September 30, 2022"},{"label":"Result","value":"reported results"}],"fact_type":"earnings_release"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}