{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-24-247628","form_type":"8-K","ticker":"BIIB","cik":"0000875045","company_name":"BIOGEN INC.","filed_at":"2024-10-30T23:59:59+00:00","discovered_at":"2026-05-14T18:03:11.195736+00:00","generated_at":"2026-05-30T08:45:50.966994+00:00","sec_items":["5.02","7.01","9.01"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.65,"calibrated_materiality_score":0.65,"confidence":"high","headline":"Biogen CFO Michael McDonnell to retire Feb 2025; Robin Kramer named successor","bullets":["Michael McDonnell to retire as CFO effective February 28, 2025, after serving since August 2020.","Robin Kramer, current Chief Accounting Officer, appointed CFO effective upon McDonnell's retirement.","Kramer's base salary $750,000; target bonus 80% of base; 2025 target LTI grant $3.75 million.","Kramer joined Biogen in 2018, served as CAO since 2020, also leads Treasury, procurement, and global business services."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-24-247628","json":"https://secwatch.observer/filing/0001193125-24-247628.json","markdown":"https://secwatch.observer/filing/0001193125-24-247628.md","text":"https://secwatch.observer/filing/0001193125-24-247628.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/875045/000119312524247628/0001193125-24-247628-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/875045/000119312524247628/d890797d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-30T08:45:50.966994+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":"a46f0ad745","claim":"Michael McDonnell departed as Chief Financial Officer at BIOGEN INC..","evidence_excerpt":"On October 28, 2024, Michael McDonnell, Chief Financial Officer of Biogen Inc. (the “Company”) notified the Company that he will retire from the Company effective February 28, 2025.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/875045/000119312524247628/0001193125-24-247628-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"retire"},{"label":"Role","value":"Chief Financial Officer"}]},{"claim_id":"f97301c3e0","claim":"Robin Kramer was appointed as Chief Financial Officer at BIOGEN INC..","evidence_excerpt":"Robin Kramer, the Company’s Chief Accounting Officer and Head of Global Business Services and Treasury has been appointed Chief Financial Officer effective upon Mr. McDonnell’s retirement.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/875045/000119312524247628/0001193125-24-247628-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"Chief Financial Officer"}]}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}