0000950123-04-009281 10-Q 4 20040630 20040805 REGENERON PHARMACEUTICALS INC 0000872589 2834 133444607 NY 1231 10-Q 34 000-19034 04953394 777 OLD SAW MILL RIVER RD TARRYTOWN NY 10591-6707 9143477000 10-Q 1 y99628e10vq.htm REGENERON PHARMACEUTICALS, INC. EX-10.6.3 2 y99628exv10w6w3.htm AMENDMENT NO.3 TO INCENTIVE PLAN EX-31 3 y99628exv31.htm CERTIFICATION EX-32 4 y99628exv32.htm CERTIFICATION