shares of regeneron pharmaceuticals inc regn slipped 036 to 59244 thursday on what proved to be an allaround positive trading session for the stock market with the sp 500 index spx rising 099 to 399895 and the dow jones industrial average djia rising 051 to 3203690 this was the stocks second consecutive day of losses regeneron pharmaceuticals inc closed 15498 short of its 52week high 74742 which the company achieved on april 8th the stock underperformed when compared to some of its competitors thursday as johnson  johnson jnj rose 035 to 17131 novartis ag adr nvs rose 198 to 8589 and amgen inc amgn fell 034 to 24578 trading volume 638488 remained 44123 below its 50day average volume of 682611 editors note this story was autogenerated by automated insights an automation technology provider using data from dow jones and factset see our market data terms of use