shares of regeneron pharmaceuticals inc regn shed 016 to 74435 friday on what proved to be an allaround poor trading session for the stock market with the sp 500 index spx falling 016 to 412408 and dow jones industrial average djia falling 003 to 3330062 this was the stocks third consecutive day of losses regeneron pharmaceuticals inc closed 9320 short of its 52week high 83755 which the company reached on april 5th the stock demonstrated a mixed performance when compared to some of its competitors friday as amgen inc amgn rose 028 to 23295 moderna inc mrna rose 069 to 12930 and gilead sciences inc gild fell 067 to 7817 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