shares of regeneron pharmaceuticals inc regn inched 011 higher to 75779 monday on what proved to be an allaround positive trading session for the stock market with the sp 500 index spx rising 031 to 398224 and the dow jones industrial average djia rising 022 to 3288909 regeneron pharmaceuticals inc closed 4269 short of its 52week high 80048 which the company achieved on february 6th the stock demonstrated a mixed performance when compared to some of its competitors monday as amgen inc amgn rose 034 to 23445 moderna inc mrna fell 071 to 13827 and gilead sciences inc gild rose 029 to 8089 trading volume 557123 remained 70821 below its 50day average volume of 627944 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