{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-23-069185","form_type":"8-K","ticker":"TSPH","cik":"0001823593","company_name":"TuSimple Holdings Inc.","filed_at":"2023-03-13T23:59:59+00:00","discovered_at":"2026-05-14T18:03:46.820411+00:00","generated_at":"2026-06-18T04:47:44.966308+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"negative","materiality_score":0.65,"calibrated_materiality_score":0.65,"confidence":"high","headline":"TuSimple director Xiaodi Hou resigns amid internal investigation into employee poaching claims","bullets":["Dr. Xiaodi Hou resigned from TuSimple's board effective March 9, 2023.","Resignation occurred during an internal investigation into claims Hou approached employees to join a new venture.","No successor has been named to fill the board vacancy.","The investigation's outcome or status is not disclosed."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-23-069185","json":"https://secwatch.observer/filing/0001193125-23-069185.json","markdown":"https://secwatch.observer/filing/0001193125-23-069185.md","text":"https://secwatch.observer/filing/0001193125-23-069185.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1823593/000119312523069185/0001193125-23-069185-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1823593/000119312523069185/d458483d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-18T04:47:44.966308+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":"f67fc8842c","claim":"Xiaodi Hou resigned as director at TuSimple Holdings Inc..","evidence_excerpt":"On March 9, 2023, Dr. Xiaodi Hou notified TuSimple Holdings Inc. (the “Company”) that he was resigning from the Company’s board of directors, effective immediately.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1823593/000119312523069185/0001193125-23-069185-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"}