secwatch.observer — SEC 8-K summary ====================================== Issuer: Spero Therapeutics, Inc. (SPRO) CIK: 0001701108 Form: 8-K Filed at: 2022-08-10T23:59:59+00:00 Accession: 0001193125-22-217351 Event type: earnings Sentiment: negative Materiality: 0.85 Item codes: 2.02, 9.01 LLM model: deepseek-v4-flash:cloud@v2 Spero Q2 net loss widens to $28.7M; tebipenem HBr NDA receives CRL; Phase 2 SPR720 trial set for Q4 2022 -------------------------------------------------------------------------------- - Net loss $28.7M ($0.87/share) vs $18.6M ($0.63/share) in Q2 2021; revenue $2.0M down from $5.1M. - FDA issued Complete Response Letter for tebipenem HBr NDA; Type A meeting completed to discuss path forward. - Phase 2 trial of SPR720 in NTM-PD expected to start Q4 2022; interim data mid-2023. - SPR206 regulatory milestone achieved under Pfizer license; $5M payment expected in Q3 2022. - Cash, equivalents and marketable securities $45.4M; believes funding into late 2023 via restructuring. Source: EDGAR index: https://www.sec.gov/Archives/edgar/data/1701108/000119312522217351/0001193125-22-217351-index.htm Primary doc: https://www.sec.gov/Archives/edgar/data/1701108/000119312522217351/d297960d8k.htm HTML page: https://secwatch.observer/filing/0001193125-22-217351 License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer