{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-26-283033","form_type":"8-K","ticker":"SPRO","cik":"0001701108","company_name":"Spero Therapeutics, Inc.","filed_at":"2026-06-25T21:08:23+00:00","discovered_at":"2026-06-25T21:10:00.236611+00:00","generated_at":"2026-06-25T21:10:18.026277+00:00","sec_items":["5.02","5.03","5.07","9.01"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.5,"calibrated_materiality_score":0.5,"confidence":"high","headline":"Spero shareholders approve doubling authorized shares to 240M and 2026 equity plan","bullets":["Authorized common shares increased from 120M to 240M via certificate of amendment filed June 23, 2026.","2026 Stock Incentive Plan approved; up to 12,895,866 shares may be issued under the plan.","Directors Milind Deshpande, Ph.D. and Kathleen Tregoning reelected as Class III directors until 2029.","PricewaterhouseCoopers LLP ratified as independent auditor for fiscal year 2026 with 99.5% votes for.","Advisory vote on named executive officer compensation approved with ~96% of votes cast in favor."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-26-283033","json":"https://secwatch.observer/filing/0001193125-26-283033.json","markdown":"https://secwatch.observer/filing/0001193125-26-283033.md","text":"https://secwatch.observer/filing/0001193125-26-283033.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1701108/000119312526283033/0001193125-26-283033-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1701108/000119312526283033/d86736d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-25T21:10:18.026277+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"}