{"schema_version":"secwatch.filing_event.v1","accession":"0001437749-21-025951","form_type":"8-K","ticker":"BLFS","cik":"0000834365","company_name":"BIOLIFE SOLUTIONS INC","filed_at":"2021-11-09T23:59:59+00:00","discovered_at":"2026-05-14T18:04:15.800629+00:00","generated_at":"2026-06-28T11:08:25.850053+00:00","sec_items":["5.02","9.01"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.6,"calibrated_materiality_score":0.6,"confidence":"high","headline":"BioLife Solutions promotes Wichterman to CFO, de Greef to President/COO; Tenney resigns","bullets":["Troy Wichterman promoted from VP Finance to CFO, effective Nov 4, 2021.","Roderick de Greef, former CFO, named President and COO, postponing retirement until early 2023.","COO Dusty Tenney resigned effective immediately; will serve as consultant through year-end then join private equity firm.","Wichterman joined BioLife in 2015, holds MAcc from UW-Madison, is a CPA (inactive).","de Greef has over 20 years with BioLife, previously served as COO from Dec 2019 to May 2021."],"urls":{"canonical":"https://secwatch.observer/filing/0001437749-21-025951","json":"https://secwatch.observer/filing/0001437749-21-025951.json","markdown":"https://secwatch.observer/filing/0001437749-21-025951.md","text":"https://secwatch.observer/filing/0001437749-21-025951.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/834365/000143774921025951/0001437749-21-025951-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/834365/000143774921025951/bioli20211105_8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-28T11:08:25.850053+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":"1797b848b6","claim":"Maurice 'Dusty' Tenney resigned as Chief Operating Officer at BIOLIFE SOLUTIONS INC.","evidence_excerpt":"On November 3, 2021, Maurice “Dusty” Tenney, the Chief Operating Officer of BioLife Solutions, Inc. (the “Company”), notified the Company of his intent to resign as Chief Operating Officer, effective immediately.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/834365/000143774921025951/0001437749-21-025951-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"resigned"},{"label":"Role","value":"Chief Operating Officer"}],"fact_type":"executive_change"},{"claim_id":"2369e5ae98","claim":"Roderick de Greef was appointed as President and Chief Operating Officer at BIOLIFE SOLUTIONS INC.","evidence_excerpt":"On November 4, 2021, the Company appointed Troy Wichterman as Chief Financial Officer and Roderick de Greef as President and Chief Operating Officer.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/834365/000143774921025951/0001437749-21-025951-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"President and Chief Operating Officer"}],"fact_type":"executive_change"},{"claim_id":"561d56400c","claim":"Troy Wichterman was appointed as Chief Financial Officer at BIOLIFE SOLUTIONS INC.","evidence_excerpt":"On November 4, 2021, the Company appointed Troy Wichterman as Chief Financial Officer","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/834365/000143774921025951/0001437749-21-025951-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"Chief Financial Officer"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}