• Spero Therapeutics granted a new employee 217,000 restricted stock units (RSUs) and 434,000 stock options on Nov. 2, 2026.
• The awards fall under the amended 2019 Inducement Equity Incentive Plan, with vesting contingent on continued employment.
• Options vest 25% on the vesting start date’s first anniversary, with the remainder vesting in 36 equal monthly installments thereafter.
• RSUs vest in four equal annual installments beginning on the first anniversary of the vesting start date.

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: 202611041605PRIMZONEFULLFEED9870500) on November 04, 2026, and is solely responsible for the information contained therein.