Recent Filings (5)

• Feb 9, 2026Form 4Spero Therapeutics, Inc.-87,917 sh
• Feb 4, 2026Form 4Spero Therapeutics, Inc.+728,558 sh
• Nov 12, 2025Form 4Spero Therapeutics, Inc.-40,270 sh
• May 6, 2025Form 4Spero Therapeutics, Inc.+185,000 sh
• Feb 5, 2025Form 4Spero Therapeutics, Inc.+345,450 sh