Gaithersburg, Maryland--(Newsfile Corp. - November 3, 2025) - Shuttle Pharmaceuticals Holdings, Inc. (NASDAQ: SHPH) ("Shuttle Pharma" or the "Company"), today announced that it entered into a securities purchase agreement with a single investor for aggregate gross proceeds of approximately $2.5 million (the "Offering"), before deducting fees to the placement agent and other offering expenses payable by the Company. The Company intends to use the net proceeds from the Offering for marketing, general corpora ...