{"schema_version":"secwatch.filing_event.v1","accession":"0001175535-22-000073","form_type":"8-K/A","ticker":"WSR","cik":"0001175535","company_name":"Whitestone REIT","filed_at":"2022-04-29T23:59:59+00:00","discovered_at":"2026-05-14T18:03:59.943449+00:00","generated_at":"2026-06-26T02:28:21.932190+00:00","sec_items":["5.02","9.01"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.3,"calibrated_materiality_score":0.3,"confidence":"high","headline":"Whitestone REIT board member James Mastandrea resigns effective April 18; company disputes allegations","bullets":["James Mastandrea resigned from the Board of Trustees on April 18, 2022, effective immediately.","He had been terminated as CEO with cause on January 18, 2022, and removed as Chairman.","Company states the allegations in Mastandrea's resignation and response letters are inaccurate and without merit.","The 10-K referenced by Mastandrea was signed by a majority of the Board, not requiring his signature.","Mastandrea's Power of Attorney from 2009 authorized David K. Holeman to execute Forms 3, 4, and 5."],"urls":{"canonical":"https://secwatch.observer/filing/0001175535-22-000073","json":"https://secwatch.observer/filing/0001175535-22-000073.json","markdown":"https://secwatch.observer/filing/0001175535-22-000073.md","text":"https://secwatch.observer/filing/0001175535-22-000073.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1175535/000117553522000073/0001175535-22-000073-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1175535/000117553522000073/wsr-20220418.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-26T02:28:21.932190+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":"8b92a9b730","claim":"James Mastandrea resigned as Trustee at Whitestone REIT.","evidence_excerpt":"On April 18, 2022, Whitestone REIT (the “Company”) received by email a resignation letter (the “Resignation Letter”) from James Mastandrea, a member of the Company’s Board of Trustees (“the Board”), pursuant to which Mr. Mastandrea resigned as a member of the Board, effective immediately.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1175535/000117553522000073/0001175535-22-000073-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"resigned"},{"label":"Role","value":"Trustee"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}