{"schema_version":"secwatch.filing_event.v1","accession":"0001289945-21-000054","form_type":"8-K","ticker":"SPOK","cik":"0001289945","company_name":"Spok Holdings, Inc","filed_at":"2021-08-31T23:59:59+00:00","discovered_at":"2026-05-14T18:04:17.528675+00:00","generated_at":"2026-06-29T06:40:42.652194+00:00","sec_items":["7.01","9.01"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.7,"calibrated_materiality_score":0.7,"confidence":"high","headline":"Spok confirms unsolicited $10.75/share cash proposal from Acacia Research; board to evaluate","bullets":["Acacia Research proposes to acquire all Spok shares for $10.75 per share in cash.","Spok board will evaluate the proposal with independent financial and legal advisors.","RBC Capital Markets, Spotlight Advisors, and Latham & Watkins are advising Spok.","No assurance the proposal will lead to a formal offer or agreement; shareholders need not act now."],"urls":{"canonical":"https://secwatch.observer/filing/0001289945-21-000054","json":"https://secwatch.observer/filing/0001289945-21-000054.json","markdown":"https://secwatch.observer/filing/0001289945-21-000054.md","text":"https://secwatch.observer/filing/0001289945-21-000054.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1289945/000128994521000054/0001289945-21-000054-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1289945/000128994521000054/spok-20210830.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-29T06:40:42.652194+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"}