** U.S.-listed shares of biotech company Regencell Bioscience RGC.O rise 21.3% to $72.80 after the bell

** Company says its 38-for-one forward stock split, announced on June 2, has taken effect

** Each shareholder of the company, at the close of business on June 12, will receive 37 additional shares for every share held on the record date - Regencell said on June 2

** "The forward stock split is intended to enhance liquidity in the market for the company's ordinary shares and make the shares more accessible to investors" - RGC

** RGC develops traditional Chinese medicine for the treatment of neurocognitive disorders

** Up to last close, stock more than tripled YTD

(Reporting by Sneha S K)

((Sneha.SK@thomsonreuters.com))