• Spero Therapeutics granted 324,622 stock options, 162,311 RSUs to a new employee under its 2019 Inducement Equity Incentive Plan.
• Options vest 25% on Aug. 3, 2027; remainder vests in 36 equal monthly installments, contingent on continued employment.
• RSUs vest in four equal annual installments starting Aug. 3, 2027, contingent on continued employment.

Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. Spero Therapeutics Inc. published the original content used to generate this news brief via GlobeNewswire (Ref. ID: 202608051605PRIMZONEFULLFEED9804514) on August 05, 2026, and is solely responsible for the information contained therein.