GAITHERSBURG, Md., June 24, 2025 (GLOBE NEWSWIRE) -- Shuttle Pharmaceuticals Holdings, Inc. (Nasdaq: SHPH) (“Shuttle Pharma” or the “Company”), a discovery and development stage specialty pharmaceutical company focused on improving outcomes for cancer patients treated with radiation therapy (RT), today announced that it closed its previously announced private placement pursuant to a securities purchase agreement with an accredited investor for aggregate gross proceeds of $4.25 million, before deducting fees ...