{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-24-073821","form_type":"8-K","ticker":"ALEC","cik":"0001653087","company_name":"Alector, Inc.","filed_at":"2024-03-21T23:59:59+00:00","discovered_at":"2026-05-14T18:03:24.987495+00:00","generated_at":"2026-06-04T09:54:56.804084+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.4,"calibrated_materiality_score":0.4,"confidence":"high","headline":"Alector announces director resignation and appointment of two new board members","bullets":["Terry McGuire resigns from Board and all committees effective March 20, 2024; personal reasons, no disagreement.","Errol De Souza, Ph.D. and Mark Altmeyer appointed to Board on March 19, 2024.","De Souza as Class II director (term to 2026 annual meeting); Altmeyer as Class III (term to 2024 annual meeting).","Board size increased to ten then reduced to nine after McGuire's resignation.","Each new director receives initial equity: option for 19,420 shares and RSU for 41,250 shares, vesting over time."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-24-073821","json":"https://secwatch.observer/filing/0001193125-24-073821.json","markdown":"https://secwatch.observer/filing/0001193125-24-073821.md","text":"https://secwatch.observer/filing/0001193125-24-073821.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1653087/000119312524073821/0001193125-24-073821-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1653087/000119312524073821/d773925d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-04T09:54:56.804084+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":"2cebc18513","claim":"Errol De Souza, Ph.D. was appointed as Director at Alector, Inc..","evidence_excerpt":"On March 19, 2024 (the “Appointment Date”), each of Errol De Souza, Ph.D. and Mark Altmeyer was appointed to the Board.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1653087/000119312524073821/0001193125-24-073821-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"Director"}],"fact_type":"executive_change"},{"claim_id":"c070424e87","claim":"Terry McGuire resigned as Director at Alector, Inc..","evidence_excerpt":"On March 15, 2024, Terry McGuire informed Alector, Inc. (the “Company”) of his resignation as a member of the Board of Directors (the “Board”) and all committees and subcommittees thereof, effective close of business March 20, 2024.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1653087/000119312524073821/0001193125-24-073821-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"resigned"},{"label":"Role","value":"Director"}],"fact_type":"executive_change"},{"claim_id":"f0599d0236","claim":"Mark Altmeyer was appointed as Director at Alector, Inc..","evidence_excerpt":"On March 19, 2024 (the “Appointment Date”), each of Errol De Souza, Ph.D. and Mark Altmeyer was appointed to the Board.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1653087/000119312524073821/0001193125-24-073821-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"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"}