New Post Public Reply Private Reply Replies (0) Message Board ← Newer Older → Lucky Jimmy May 31, 2017 at 10:31 AM 135 REGN +5.24 total advance today 10:29 ET. Regeneron Pharmaceutical $REGN 453.91 Stock hit a High of 456.92 and 448.26 Low with volume of 146,600. Newer Older