shares of regeneron pharmaceuticals inc regn slipped 023 to 78121 tuesday on what proved to be an allaround poor trading session for the stock market with the sp 500 index spx falling 047 to 438871 and dow jones industrial average djia falling 072 to 3405387 this was the stocks second consecutive day of losses regeneron pharmaceuticals inc closed 5634 short of its 52week high 83755 which the company reached on april 5th despite its losses the stock outperformed some of its competitors tuesday as amgen inc amgn fell 047 to 22859 moderna inc mrna fell 350 to 12423 and gilead sciences inc gild fell 146 to 7771 trading volume 419985 remained 107989 below its 50day average volume of 527974 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