CoCensys Trading Resumes on Nasdaq

Stock of CoCensys Inc., a struggling biomedical company in Irvine, resumed trading Tuesday following an investigation by the Nasdaq stock market into unusual trading activity.

CoCensys shares, which stopped trading Thursday at 22 cents, closed Tuesday at the same price.

Nasdaq halted trading in the stock to investigate a report that 100 CoCensys shares had sold March 31 at 6 cents a share, far less than the market price. The company knew of no explanation for the unusual trade.