shares of regeneron pharmaceuticals inc regn inched 043 higher to 72161 monday on what proved to be an allaround great trading session for the stock market with the sp 500 index spx rising 039 to 452279 and the dow jones industrial average djia rising 022 to 3458535 regeneron pharmaceuticals inc closed 11594 below its 52week high 83755 which the company achieved on april 5th the stock demonstrated a mixed performance when compared to some of its competitors monday as amgen inc amgn rose 018 to 22784 moderna inc mrna rose 103 to 12260 and gilead sciences inc gild rose 038 to 7748 trading volume 546984 remained 91466 below its 50day average volume of 638450 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