Heron Therapeutics is trading 5.11% up at $0.28 after rebounding from the September 21, 2026 close of $0.27, when shares fell 12.82%.
- No new company-specific announcement or reliable catalyst explains the September 22 rebound.
- Recent coverage references CINVANTI patent uncertainty, withdrawn 2026 guidance, and strategic-review concerns.
- Broader markets are only modestly mixed, so the move cannot be confidently attributed to market-wide momentum.