Shuttle Pharmaceuticals (NASDAQ:SHPH) rose 9.25% on June 23, 2026, as post-split trading drove a radioenhancer rebound, with shares closing at $3.84.

Key Highlights

  • Rose 9.25%: Shuttle Pharmaceuticals closed at $3.84 on June 23 after moving $0.33 per share.
  • Catalyst: During the session, post-split trading drove a radioenhancer rebound.
  • Company: Shuttle Pharmaceuticals develops compounds intended to improve the effectiveness of radiation therapy.
  • Session: The stock finished at $3.84, while the available company record showed a disclosed catalyst for the move.

Shuttle Pharmaceuticals (NASDAQ:SHPH) rose 9.25% on June 23, 2026, closing at $3.84 after a $0.33 per-share move. The session’s advance came as post-split trading drove a radioenhancer rebound, based on the available company disclosures and trading context.

Low-float trading dynamics produced a rebound following the company's June reverse stock split, which reduced the share count and increased per-share price. Shuttle Pharmaceuticals develops radioenhancer compounds to increase the effectiveness of radiation therapy in cancer treatment.

Shuttle Pharmaceuticals develops compounds intended to improve the effectiveness of radiation therapy.

No clinical trial update or regulatory interaction was disclosed during the June 23 session.

A reverse stock split reduces the number of shares outstanding and raises the quoted price per share in the same proportion. The corporate action does not by itself create an equivalent increase in the company’s total equity value, although the smaller float can increase near-term volatility.

The reported 9.25% move must therefore be read alongside the split mechanics. The session ended at $3.84, and no separate operating announcement accompanied the price adjustment.

The company’s own disclosures remain the primary record for separating a verified business event from a price move caused by market positioning. For June 23, the closing data and the stated catalyst provide the clearest account of the session without implying an unannounced change in fundamentals.

For the June 23 close, the defining facts were the 9.25% advance, the $3.84 closing price and the catalyst described above. Any further change in the investment record would require a new filing, financial update, regulatory communication or transaction announcement from the company.