Last year, Spero Therapeutics Inc generated 47.03M USD for its biggest-performing segment, Collaboration Revenue Related Party. The United States made the largest contribution, accounting for 66.80M USD last year. For the latest quarter, Spero Therapeutics Inc reported the revenue of 0.00 USD for the period ending 2026-06-30, which came from the top-performing segment, Collaboration Revenue. United States contributed the highest revenue, at 0.00 USD.