NASDAQ:REGN | Historical Stock Price | REGENERON PHARMACEUTICALS, INC.

Complete retained daily price history on its own workbook tab. Split-adjusted close keeps every historical share price on one comparable split basis. Cumulative dividend-reinvested close is the daily close of a rebased total-return index: it starts with one share at the earliest retained close, reinvests every distribution, and normalizes every forward and reverse split exactly once. Admitted exchange opening prices remain a distinct current-session series.

Available history
1991-04-02 to 2026-09-04
Data captured

Stock Price Chart

Blue: Split-adjusted close · Orange: Cumulative dividend-reinvested close

$3.27$10.74$35.35$116.32$382.72$1,259.251991-04-022026-08-27

Logarithmic scale. Both lines share the same starting value for the selected range.

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Historical Stock Price — 2004

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2004-12-31$9.21$9.21227,800
2004-12-30$9.32$9.32174,100
2004-12-29$9.29$9.29217,700
2004-12-28$9.27$9.27396,900
2004-12-27$9.06$9.06325,200
2004-12-23$9.32$9.32233,600
2004-12-22$9.24$9.24158,400
2004-12-21$9.19$9.19348,800
2004-12-20$9.14$9.14250,900
2004-12-17$8.95$8.95351,200
2004-12-16$9.27$9.27298,700
2004-12-15$9.47$9.47617,500
2004-12-14$9.27$9.27320,300
2004-12-13$9.06$9.06168,700
2004-12-10$8.84$8.84109,600
2004-12-09$8.79$8.79162,000
2004-12-08$8.78$8.78179,400
2004-12-07$8.62$8.62192,700
2004-12-06$8.91$8.91203,000
2004-12-03$9.02$9.02136,900
2004-12-02$9.22$9.22257,300
2004-12-01$9.03$9.03335,400
2004-11-30$9.22$9.22306,900
2004-11-29$9.03$9.03385,600
2004-11-26$8.55$8.5560,000
2004-11-24$8.60$8.60181,800
2004-11-23$8.84$8.84136,300
2004-11-22$8.75$8.75152,100
2004-11-19$8.33$8.33151,200
2004-11-18$8.59$8.59142,200
2004-11-17$8.64$8.64187,400
2004-11-16$8.58$8.58191,300
2004-11-15$8.93$8.93248,900
2004-11-12$8.72$8.72365,100
2004-11-11$8.71$8.71231,500
2004-11-10$8.51$8.51246,700
2004-11-09$8.34$8.34254,900
2004-11-08$8.06$8.06370,500
2004-11-05$8.02$8.02288,800
2004-11-04$7.92$7.92185,000
2004-11-03$7.88$7.88271,100
2004-11-02$7.52$7.52461,900
2004-11-01$7.54$7.54441,400
2004-10-29$7.27$7.27428,400
2004-10-28$7.21$7.21436,300
2004-10-27$7.17$7.17465,300
2004-10-26$7.08$7.08323,800
2004-10-25$6.85$6.85501,300
2004-10-22$6.86$6.86271,900
2004-10-21$6.92$6.92370,200
2004-10-20$6.95$6.95748,700
2004-10-19$7.30$7.30259,100
2004-10-18$7.72$7.72357,200
2004-10-15$7.42$7.42421,600
2004-10-14$7.41$7.41281,300
2004-10-13$7.66$7.66404,200
2004-10-12$8.00$8.00116,600
2004-10-11$8.03$8.03159,700
2004-10-08$7.89$7.89289,300
2004-10-07$8.23$8.23173,700
2004-10-06$8.48$8.48294,900
2004-10-05$8.50$8.50297,700
2004-10-04$9.00$9.00242,200
2004-10-01$8.78$8.78233,000
2004-09-30$8.68$8.68180,400
2004-09-29$8.90$8.90130,500
2004-09-28$8.73$8.73194,000
2004-09-27$8.20$8.20231,400
2004-09-24$8.65$8.6576,300
2004-09-23$8.67$8.6798,800
2004-09-22$8.66$8.66276,600
2004-09-21$9.32$9.3299,200
2004-09-20$9.25$9.25141,600
2004-09-17$9.00$9.00247,700
2004-09-16$9.18$9.18126,600
2004-09-15$9.12$9.12105,500
2004-09-14$9.20$9.20172,800
2004-09-13$9.30$9.30190,300
2004-09-10$9.22$9.22106,500
2004-09-09$8.99$8.99199,200
2004-09-08$8.73$8.73115,900
2004-09-07$9.12$9.12265,300
2004-09-03$8.96$8.96122,200
2004-09-02$9.27$9.27126,200
2004-09-01$8.87$8.87212,900
2004-08-31$8.91$8.91165,000
2004-08-30$8.86$8.86154,000
2004-08-27$9.18$9.18165,100
2004-08-26$8.98$8.98142,900
2004-08-25$8.98$8.98256,500
2004-08-24$8.64$8.64194,600
2004-08-23$8.54$8.54375,600
2004-08-20$8.68$8.68166,400
2004-08-19$8.19$8.19215,300
2004-08-18$8.17$8.17559,200
2004-08-17$7.31$7.31449,400
2004-08-16$7.48$7.48287,200
2004-08-13$7.05$7.05134,100
2004-08-12$7.18$7.18121,500
2004-08-11$7.47$7.47287,900
2004-08-10$7.11$7.11264,300
2004-08-09$6.90$6.90367,100
2004-08-06$6.96$6.96261,000
2004-08-05$7.37$7.37274,000
2004-08-04$7.91$7.91254,700
2004-08-03$8.16$8.16251,300
2004-08-02$8.16$8.16310,400
2004-07-30$8.56$8.56196,000
2004-07-29$8.44$8.44315,800
2004-07-28$8.25$8.25417,500
2004-07-27$7.98$7.98302,700
2004-07-26$7.51$7.51244,200
2004-07-23$7.62$7.62333,500
2004-07-22$8.06$8.06310,200
2004-07-21$7.92$7.92355,700
2004-07-20$8.67$8.67228,500
2004-07-19$8.27$8.27267,200
2004-07-16$8.27$8.27292,900
2004-07-15$8.69$8.69119,500
2004-07-14$8.70$8.70353,000
2004-07-13$8.88$8.88251,300
2004-07-12$9.00$9.00368,600
2004-07-09$9.19$9.19177,400
2004-07-08$9.14$9.14318,200
2004-07-07$9.51$9.51253,700
2004-07-06$9.76$9.76216,600
2004-07-02$10.12$10.12118,000
2004-07-01$10.16$10.16262,600
2004-06-30$10.53$10.53346,400
2004-06-29$10.23$10.23464,400
2004-06-28$10.23$10.23405,700
2004-06-25$10.10$10.10425,700
2004-06-24$10.11$10.11495,200
2004-06-23$9.99$9.99458,300
2004-06-22$9.50$9.50584,900
2004-06-21$9.38$9.38462,500
2004-06-18$9.43$9.43437,900
2004-06-17$9.34$9.34438,700
2004-06-16$9.44$9.44440,500
2004-06-15$9.22$9.22540,300
2004-06-14$8.92$8.921,123,900
2004-06-10$8.65$8.651,694,200
2004-06-09$9.81$9.81579,400
2004-06-08$9.93$9.93879,800
2004-06-07$9.73$9.731,190,600
2004-06-04$11.22$11.22596,300
2004-06-03$10.86$10.86397,100
2004-06-02$11.37$11.37438,700
2004-06-01$11.36$11.36259,100
2004-05-28$11.23$11.23330,600
2004-05-27$11.78$11.78486,400
2004-05-26$11.75$11.75792,000
2004-05-25$11.60$11.60284,500
2004-05-24$11.11$11.11365,700
2004-05-21$11.12$11.12293,000
2004-05-20$11.06$11.06396,400
2004-05-19$10.96$10.96435,400
2004-05-18$11.15$11.15504,300
2004-05-17$11.26$11.26638,100
2004-05-14$11.95$11.95487,200
2004-05-13$12.33$12.33471,100
2004-05-12$12.63$12.63594,600
2004-05-11$12.69$12.69693,600
2004-05-10$12.14$12.14704,900
2004-05-07$12.49$12.49582,000
2004-05-06$12.71$12.71323,700
2004-05-05$13.28$13.28444,400
2004-05-04$13.16$13.16443,500
2004-05-03$13.23$13.23896,800
2004-04-30$12.53$12.53739,600
2004-04-29$13.02$13.02623,000
2004-04-28$13.75$13.755,289,200
2004-04-27$14.06$14.06762,000
2004-04-26$15.30$15.301,517,500
2004-04-23$13.59$13.59325,400
2004-04-22$13.53$13.53383,300
2004-04-21$12.77$12.77275,600
2004-04-20$12.71$12.71723,400
2004-04-19$12.99$12.99398,100
2004-04-16$12.44$12.44289,600
2004-04-15$12.40$12.40389,100
2004-04-14$12.61$12.61326,100
2004-04-13$12.60$12.60410,300
2004-04-12$13.32$13.32256,000
2004-04-08$13.50$13.50156,900
2004-04-07$13.75$13.75251,900
2004-04-06$13.87$13.87359,000
2004-04-05$14.54$14.54236,300
2004-04-02$13.91$13.91551,700
2004-04-01$13.53$13.53433,700
2004-03-31$13.58$13.58397,800
2004-03-30$13.92$13.92172,600
2004-03-29$13.80$13.80399,700
2004-03-26$13.27$13.27145,700
2004-03-25$13.50$13.50584,100
2004-03-24$12.94$12.94493,400
2004-03-23$13.32$13.32266,300
2004-03-22$13.54$13.54391,400
2004-03-19$13.68$13.68241,500
2004-03-18$14.01$14.01370,800
2004-03-17$14.24$14.24575,100
2004-03-16$13.96$13.96574,900
2004-03-15$14.12$14.12495,700
2004-03-12$14.35$14.35547,900
2004-03-11$14.25$14.25488,500
2004-03-10$14.39$14.39512,700
2004-03-09$14.91$14.91635,900
2004-03-08$15.44$15.44709,700
2004-03-05$15.98$15.98494,800
2004-03-04$15.14$15.14414,900
2004-03-03$15.00$15.00335,000
2004-03-02$14.98$14.98619,900
2004-03-01$14.85$14.851,025,800
2004-02-27$14.16$14.165,620,700
2004-02-26$15.16$15.16495,100
2004-02-25$14.30$14.30376,100
2004-02-24$13.85$13.85429,800
2004-02-23$14.01$14.01450,100
2004-02-20$14.20$14.20260,700
2004-02-19$14.08$14.08413,700
2004-02-18$14.45$14.45416,100
2004-02-17$14.40$14.40346,100
2004-02-13$13.95$13.95211,800
2004-02-12$14.47$14.47568,700
2004-02-11$14.70$14.70196,200
2004-02-10$14.74$14.74371,300
2004-02-09$14.60$14.60334,500
2004-02-06$14.76$14.76385,500
2004-02-05$13.79$13.79302,500
2004-02-04$13.83$13.83540,900
2004-02-03$14.60$14.60325,000
2004-02-02$15.04$15.04440,600
2004-01-30$14.86$14.86248,700
2004-01-29$14.89$14.89562,700
2004-01-28$15.58$15.58328,500
2004-01-27$15.89$15.89447,300
2004-01-26$16.50$16.50284,800
2004-01-23$16.72$16.72169,100
2004-01-22$16.64$16.64466,100
2004-01-21$16.25$16.25300,100
2004-01-20$16.08$16.08457,700
2004-01-16$16.20$16.20492,600
2004-01-15$16.43$16.43256,300
2004-01-14$16.02$16.02434,000
2004-01-13$16.10$16.101,171,400
2004-01-12$15.33$15.33684,500
2004-01-09$15.58$15.58793,200
2004-01-08$15.69$15.69543,800
2004-01-07$15.50$15.50334,300
2004-01-06$14.92$14.92222,600
2004-01-05$15.09$15.09255,500
2004-01-02$15.05$15.05201,800