{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-25-048727","form_type":"8-K","ticker":"ADTN","cik":"0000926282","company_name":"ADTRAN Holdings, Inc.","filed_at":"2025-03-07T23:59:59+00:00","discovered_at":"2026-05-14T18:03:06.843124+00:00","generated_at":"2026-05-25T04:42:48.634751+00:00","sec_items":["5.02","7.01","9.01"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.65,"calibrated_materiality_score":0.65,"confidence":"high","headline":"ADTRAN Holdings appoints Timothy Santo as CFO; Ulrich Dopfer transitions to new role","bullets":["Timothy Santo named CFO, effective March 10, 2025; annual base salary of $460,000 plus bonus and equity grants.","Santo most recently served as CFO of Conn's Inc.; also held senior finance roles at PRA Group, GE Capital, and Grant Thornton.","Ulrich Dopfer steps down as CFO and will serve as VP, Finance & Administration Planning and remain on Adtran Networks SE management board.","Santo will also serve as Principal Accounting Officer and Treasurer of the company."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-25-048727","json":"https://secwatch.observer/filing/0001193125-25-048727.json","markdown":"https://secwatch.observer/filing/0001193125-25-048727.md","text":"https://secwatch.observer/filing/0001193125-25-048727.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/926282/000119312525048727/0001193125-25-048727-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/926282/000119312525048727/d878735d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-25T04:42:48.634751+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":"1a8f41d687","claim":"Timothy Santo was appointed as Senior Vice President of Finance and Chief Financial Officer at ADTRAN Holdings, Inc..","evidence_excerpt":"On March 6, 2025, ADTRAN Holdings, Inc. (the “Company”) announced the appointment of Mr. Timothy Santo as Senior Vice President of Finance and Chief Financial Officer of the Company, effective as of Mr. Santo’s employment start date, which is expected to be March 10, 2025.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/926282/000119312525048727/0001193125-25-048727-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"Senior Vice President of Finance and Chief Financial Officer"}]},{"claim_id":"a7b5f89f7a","claim":"Ulrich Dopfer changed role as Vice President, Finance & Administration Planning at ADTRAN Holdings, Inc..","evidence_excerpt":"In connection with Mr. Santo’s appointment, on March 6, 2025, the Company and Ulrich Dopfer, Senior Vice President of Finance and Chief Financial Officer of the Company, agreed that Mr. Dopfer will no longer serve as the Company’s Chief Financial Officer, Secretary, Treasurer and principal accounting officer, effective March 10, 2025.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/926282/000119312525048727/0001193125-25-048727-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"transitioned"},{"label":"Role","value":"Vice President, Finance & Administration Planning"}]}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}