NASDAQ:SPRO

Spero Stock Falls With Two Weeks Left Until FDA Decision

Spero Stock Falls With Two Weeks Left Until FDA Decision

Spero Therapeutics shares slipped late Wednesday, missing gains seen in the wider biotech sector. Traders watched for a June 18 U.S. decision on tebipenem HBr, Spero’s antibiotic that’s partnered with GSK. The stock changed hands at $2.80, off 1.1%, giving the company a market cap around $151 million. The SPDR S&P Biotech ETF was ahead 1.5%. Spero shares traded with a clear catalyst ahead. The biotech said the Food and Drug Administration gave a June 18 PDUFA date for tebipenem HBr’s new drug application. That's the target for an FDA decision on whether to approve the drug.
June 3, 2026