{"schema_version":"secwatch.filing_event.v1","accession":"0001437749-26-032821","form_type":"8-K","ticker":"WSBF","cik":"0001569994","company_name":"Waterstone Financial, Inc.","filed_at":"2026-10-16T20:59:03+00:00","discovered_at":"2026-10-16T21:00:00.359987+00:00","generated_at":"2026-10-16T21:00:02.604513+00:00","sec_items":["5.02","9.01"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.25,"calibrated_materiality_score":0.25,"confidence":"high","headline":"Waterstone Financial director Derek L. Tyus resigns from company and bank boards","bullets":["Derek L. Tyus resigned from the Boards of Waterstone Financial (NASDAQ: WSBF) and WaterStone Bank SSB, effective October 20, 2026.","Tyus, a director since 2021, is stepping down due to a new professional commitment; the company said there was no disagreement over operations, policies or practices.","He served on the Company Board's Audit and Compensation Committees and the Bank Board's Executive Committee.","Chairman Patrick S. Lawton thanked Tyus for his service; no replacement director was named."],"urls":{"canonical":"https://secwatch.observer/filing/0001437749-26-032821","json":"https://secwatch.observer/filing/0001437749-26-032821.json","markdown":"https://secwatch.observer/filing/0001437749-26-032821.md","text":"https://secwatch.observer/filing/0001437749-26-032821.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1569994/000143774926032821/0001437749-26-032821-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1569994/000143774926032821/wsbf20261012_8k.htm"},"model":{"generated_by":"deepseek-v4.1-flash:cloud@v2","generated_at":"2026-10-16T21:00:02.604513+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":"1e4147e659","claim":"Derek L. Tyus resigned as Director at Waterstone Financial, Inc..","evidence_excerpt":"On October 16, 2026, Waterstone Financial, Inc. (the “Company”) (NASDAQ: WSBF), the holding company for WaterStone Bank SSB (the “Bank”), announced today that Derek L. Tyus has resigned from the Boards of Directors of the Company and the Bank, effective October 20, 2026.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1569994/000143774926032821/0001437749-26-032821-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"resigned"},{"label":"Role","value":"Director"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}