the astrazeneca plc adr azn were unchanged thursday on what proved to be an allaround mixed trading session for the stock market with the nasdaq composite index comp rising 081 to 1594031 and the dow jones industrial average djia falling 009 to 3612423 astrazeneca plc adr closed 038 short of its 52week high 6421 which the company achieved on november 2nd the adr outperformed some of its competitors thursday as abbvie inc abbv fell 043 to 11706 amgen inc amgn fell 147 to 21493 and gilead