{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-21-222565","form_type":"8-K","ticker":"LNTH","cik":"0001521036","company_name":"Lantheus Holdings, Inc.","filed_at":"2021-07-23T23:59:59+00:00","discovered_at":"2026-05-14T18:04:18.372135+00:00","generated_at":"2026-06-30T02:55:56.883266+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.35,"calibrated_materiality_score":0.35,"confidence":"high","headline":"COO John Bolla resigns; Andrea Sabens named principal accounting officer at Lantheus","bullets":["John Bolla resigns as Chief Operations Officer effective August 6, 2021 to pursue other opportunities.","Resignation not due to any disagreement with the Company, board, or management.","Search underway for next operations leader; no replacement named yet.","Andrea Sabens, age 42, appointed principal accounting officer effective July 21, 2021.","Sabens, a CPA with 20 years of experience, had served as VP Finance since joining Lantheus in 2009."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-21-222565","json":"https://secwatch.observer/filing/0001193125-21-222565.json","markdown":"https://secwatch.observer/filing/0001193125-21-222565.md","text":"https://secwatch.observer/filing/0001193125-21-222565.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1521036/000119312521222565/0001193125-21-222565-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1521036/000119312521222565/d172337d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-30T02:55:56.883266+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":"14f502b2f7","claim":"John Bolla resigned as Chief Operations Officer at Lantheus Holdings, Inc..","evidence_excerpt":"On July 19, 2021, John Bolla informed Lantheus Holdings, Inc. (the “ Company”) of his intention to resign as the Chief Operations Officer of the Company and its subsidiaries, effective as of August 6, 2021 to pursue other opportunities.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1521036/000119312521222565/0001193125-21-222565-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"resigned"},{"label":"Role","value":"Chief Operations Officer"}],"fact_type":"executive_change"},{"claim_id":"a56057b835","claim":"Andrea Sabens was appointed as principal accounting officer at Lantheus Holdings, Inc..","evidence_excerpt":"On July 21, 2021, the Board of Directors of the Company appointed Andrea Sabens as the principal accounting officer of the Company and its subsidiaries, effective July 21, 2021 (the “ Effective Date ”).","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1521036/000119312521222565/0001193125-21-222565-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"principal accounting officer"}],"fact_type":"executive_change"},{"claim_id":"e0b2b0b01c","claim":"Robert J. Marshall, Jr. changed role as principal accounting officer at Lantheus Holdings, Inc..","evidence_excerpt":"Robert J. Marshall, Jr., the Company’s Chief Financial Officer and principal financial officer, will no longer serve as principal accounting officer of the Company as of the Effective Date.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1521036/000119312521222565/0001193125-21-222565-index.htm","confidence":0.9,"family_label":"Executive change","details":[{"label":"Action","value":"will no longer serve as"},{"label":"Role","value":"principal accounting officer"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}