{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-24-082060","form_type":"8-K","ticker":"SPRO","cik":"0001701108","company_name":"Spero Therapeutics, Inc.","filed_at":"2024-03-29T23:59:59+00:00","discovered_at":"2026-05-14T18:03:25.164480+00:00","generated_at":"2026-06-04T05:25:59.291472+00:00","sec_items":["8.01"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.1,"calibrated_materiality_score":0.1,"confidence":"high","headline":"Spero Therapeutics sets 2024 Annual Meeting for May 29, 2024 (online)","bullets":["Annual Meeting on May 29, 2024, will be held entirely online via virtual format.","Meeting scheduled more than 30 days before prior year's meeting (Oct 5, 2023), triggering special notice under Bylaws.","Stockholders should review Bylaws for deadlines on Rule 14a-8 proposals and director nominations.","Proxy statement will detail online attendance, voting, and question submission procedures."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-24-082060","json":"https://secwatch.observer/filing/0001193125-24-082060.json","markdown":"https://secwatch.observer/filing/0001193125-24-082060.md","text":"https://secwatch.observer/filing/0001193125-24-082060.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1701108/000119312524082060/0001193125-24-082060-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1701108/000119312524082060/d818262d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-04T05:25:59.291472+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":[],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}