{"schema_version":"secwatch.filing_event.v1","accession":"0000950170-24-102461","form_type":"8-K","ticker":null,"cik":"0001850079","company_name":"Telesis Bio Inc.","filed_at":"2024-08-30T23:59:59+00:00","discovered_at":"2026-05-14T18:03:14.910162+00:00","generated_at":"2026-05-31T06:51:02.174887+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.6,"calibrated_materiality_score":0.6,"confidence":"high","headline":"Five directors resign from Telesis Bio board, CEO becomes chair","bullets":["Directors Witney, Tsingos, Tumolo, Nachtsheim resigned Aug 27; Nelson resigned Aug 29, all effective immediately.","Eric Esser, President and CEO, appointed as chair of the board.","Audit Committee: Todd Krueger (chair), Sarah Hlavinka, Michael Hodges.","Compensation Committee: Jim Weissman (chair), Andrea Jackson, Sarah Hlavinka.","Nominating and Governance Committee: Steven Golub (chair), Andrea Jackson, Greg Herrema."],"urls":{"canonical":"https://secwatch.observer/filing/0000950170-24-102461","json":"https://secwatch.observer/filing/0000950170-24-102461.json","markdown":"https://secwatch.observer/filing/0000950170-24-102461.md","text":"https://secwatch.observer/filing/0000950170-24-102461.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1850079/000095017024102461/0000950170-24-102461-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1850079/000095017024102461/tbio-20240827.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-31T06:51:02.174887+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":"1aeb01b7e2","claim":"Jami Nachtsheim resigned as Director at Telesis Bio Inc..","evidence_excerpt":"On August 27, 2024, Franklin R. Witney, Christine A. Tsingos, Annette Tumolo and Jami Nachtsheim and on August 29, 2024, Todd R. Nelson each gave notice of his or her resignation from the Board of Directors (the “Board”) of Telesis Bio Inc. (the “Company”) and from each committee of the Board on which he or she served, to be effective immediately","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1850079/000095017024102461/0000950170-24-102461-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"resigned"},{"label":"Role","value":"Director"}],"fact_type":"executive_change"},{"claim_id":"2c3ab5f5ca","claim":"Annette Tumolo resigned as Director at Telesis Bio Inc..","evidence_excerpt":"On August 27, 2024, Franklin R. Witney, Christine A. Tsingos, Annette Tumolo and Jami Nachtsheim and on August 29, 2024, Todd R. Nelson each gave notice of his or her resignation from the Board of Directors (the “Board”) of Telesis Bio Inc. (the “Company”) and from each committee of the Board on which he or she served, to be effective immediately","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1850079/000095017024102461/0000950170-24-102461-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"resigned"},{"label":"Role","value":"Director"}],"fact_type":"executive_change"},{"claim_id":"4fa9aeab44","claim":"Todd R. Nelson resigned as Director at Telesis Bio Inc..","evidence_excerpt":"On August 27, 2024, Franklin R. Witney, Christine A. Tsingos, Annette Tumolo and Jami Nachtsheim and on August 29, 2024, Todd R. Nelson each gave notice of his or her resignation from the Board of Directors (the “Board”) of Telesis Bio Inc. (the “Company”) and from each committee of the Board on which he or she served, to be effective immediately","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1850079/000095017024102461/0000950170-24-102461-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"resigned"},{"label":"Role","value":"Director"}],"fact_type":"executive_change"},{"claim_id":"591c2cfb92","claim":"Franklin R. Witney resigned as Director at Telesis Bio Inc..","evidence_excerpt":"On August 27, 2024, Franklin R. Witney, Christine A. Tsingos, Annette Tumolo and Jami Nachtsheim and on August 29, 2024, Todd R. Nelson each gave notice of his or her resignation from the Board of Directors (the “Board”) of Telesis Bio Inc. (the “Company”) and from each committee of the Board on which he or she served, to be effective immediately","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1850079/000095017024102461/0000950170-24-102461-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"resigned"},{"label":"Role","value":"Director"}],"fact_type":"executive_change"},{"claim_id":"bb3ad28f98","claim":"Christine A. Tsingos resigned as Director at Telesis Bio Inc..","evidence_excerpt":"On August 27, 2024, Franklin R. Witney, Christine A. Tsingos, Annette Tumolo and Jami Nachtsheim and on August 29, 2024, Todd R. Nelson each gave notice of his or her resignation from the Board of Directors (the “Board”) of Telesis Bio Inc. (the “Company”) and from each committee of the Board on which he or she served, to be effective immediately","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1850079/000095017024102461/0000950170-24-102461-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"resigned"},{"label":"Role","value":"Director"}],"fact_type":"executive_change"},{"claim_id":"cd8bd8d09d","claim":"Eric Esser was appointed as Chair of the Board at Telesis Bio Inc..","evidence_excerpt":"the Board appointed Eric Esser, the Company’s President and CEO, to serve as the chair of the board","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1850079/000095017024102461/0000950170-24-102461-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"Chair of the Board"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}