{"url_path":"/sec/spro/10-q/2026/item-2","section_key":"item-2","section_title":"Item 2 Unregistered Sales of Equity Securities and Use of Proceeds.","topic":"sec","document":{"doc_type":"10-Q","doc_date":"2026-05-13","source_url":"https://www.sec.gov/Archives/edgar/data/1701108/0001193125-26-221591-index.html","accession_number":"0001193125-26-221591","cik":"0001701108","ticker":"SPRO","issuer_name":"Spero Therapeutics, Inc.","edgar_url":"https://www.sec.gov/Archives/edgar/data/1701108/0001193125-26-221591-index.html","primary_entity_key":"0001701108","primary_entity_name":"Spero Therapeutics, Inc."},"word_count":12,"has_tables":true,"body_markdown":"Item 2. Unregistered Sales of Equity Securities and Use of Proceeds.\n\nNone."}