0000950123-04-013538 8-K 2 20041112 5.03 9.01 20041112 20041112 REGENERON PHARMACEUTICALS INC 0000872589 2834 133444607 NY 1231 8-K 34 000-19034 041140022 777 OLD SAW MILL RIVER RD TARRYTOWN NY 10591-6707 9143477000 8-K 1 y68769e8vk.htm FORM 8-K EX-3.1 2 y68769exv3w1.htm EX-3.1 AMENDED TEXT OF ARTICLE I, SECTION 5 OF BY-LAWS