{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-26-311290","form_type":"8-K","ticker":"ADTN","cik":"0000926282","company_name":"ADTRAN Holdings, Inc.","filed_at":"2026-07-22T11:02:14+00:00","discovered_at":"2026-07-22T11:05:00.308175+00:00","generated_at":"2026-07-22T11:05:05.442051+00:00","sec_items":["2.02","7.01","9.01"],"event_type":"earnings","sentiment":"negative","materiality_score":0.85,"calibrated_materiality_score":0.85,"confidence":"high","headline":"ADTRAN pre-announces Q2 revenue, margin, EPS below guidance; Q3 outlook weak","bullets":["Preliminary Q2 revenue $280-282M vs guidance $283-303M; non-GAAP op margin 3.5-4.0% vs 5.0-9.0%.","Preliminary non-GAAP EPS $0.03-0.05 vs analyst consensus of $0.13; GAAP loss per share $(0.12)-(0.14).","Q3 guidance: revenue $275-295M, non-GAAP op margin 1.5-5.5% — below prior expectations.","Miss driven by a single customer project delay and elevated component/freight costs.","Full Q2 results due Aug 3; conference call Aug 4."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-26-311290","json":"https://secwatch.observer/filing/0001193125-26-311290.json","markdown":"https://secwatch.observer/filing/0001193125-26-311290.md","text":"https://secwatch.observer/filing/0001193125-26-311290.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/926282/000119312526311290/0001193125-26-311290-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/926282/000119312526311290/adtn-20260721.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-07-22T11:05:05.442051+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":[],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}