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 — 2001

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2001-12-31$28.16$28.16269,200
2001-12-28$28.99$28.99241,500
2001-12-27$28.82$28.82370,300
2001-12-26$28.91$28.9186,800
2001-12-24$29.10$29.10105,900
2001-12-21$29.80$29.80326,800
2001-12-20$28.95$28.95179,700
2001-12-19$28.86$28.86264,400
2001-12-18$28.30$28.3073,400
2001-12-17$27.75$27.75201,700
2001-12-14$26.61$26.61122,300
2001-12-13$26.69$26.69276,600
2001-12-12$26.00$26.00403,300
2001-12-11$26.80$26.80664,200
2001-12-10$28.30$28.30159,700
2001-12-07$29.31$29.31255,200
2001-12-06$28.48$28.48237,500
2001-12-05$27.10$27.10275,800
2001-12-04$26.64$26.64318,900
2001-12-03$26.95$26.95133,600
2001-11-30$27.67$27.67269,600
2001-11-29$27.18$27.18253,000
2001-11-28$27.60$27.60550,100
2001-11-27$28.50$28.50499,200
2001-11-26$28.00$28.00308,400
2001-11-23$27.50$27.50114,300
2001-11-21$27.00$27.00219,400
2001-11-20$27.36$27.36367,000
2001-11-19$27.89$27.89690,000
2001-11-16$25.58$25.58538,500
2001-11-15$24.95$24.95233,600
2001-11-14$24.96$24.96559,800
2001-11-13$24.65$24.65286,700
2001-11-12$23.20$23.20158,600
2001-11-09$22.50$22.50250,100
2001-11-08$23.27$23.27270,300
2001-11-07$23.22$23.22117,700
2001-11-06$23.05$23.05267,000
2001-11-05$23.45$23.45276,100
2001-11-02$22.72$22.72309,100
2001-11-01$22.09$22.09173,400
2001-10-31$22.10$22.10899,200
2001-10-30$21.10$21.10533,800
2001-10-29$21.89$21.89267,900
2001-10-26$22.46$22.46954,000
2001-10-25$21.35$21.35487,200
2001-10-24$21.41$21.41464,700
2001-10-23$21.65$21.65602,000
2001-10-22$22.56$22.56292,800
2001-10-19$22.34$22.34479,500
2001-10-18$22.57$22.57140,900
2001-10-17$22.61$22.61817,300
2001-10-16$23.00$23.00583,000
2001-10-15$23.10$23.101,317,000
2001-10-12$23.24$23.245,386,700
2001-10-11$27.01$27.01201,600
2001-10-10$27.10$27.10141,400
2001-10-09$24.37$24.3763,200
2001-10-08$24.02$24.02190,500
2001-10-05$24.84$24.84122,200
2001-10-04$25.43$25.43112,000
2001-10-03$26.15$26.15127,800
2001-10-02$24.00$24.0077,900
2001-10-01$22.72$22.7276,800
2001-09-28$22.24$22.24233,000
2001-09-27$22.52$22.52342,300
2001-09-26$21.29$21.29265,700
2001-09-25$21.21$21.21244,700
2001-09-24$21.87$21.87279,500
2001-09-21$20.60$20.60146,100
2001-09-20$20.75$20.7589,700
2001-09-19$21.75$21.75269,900
2001-09-18$22.83$22.83418,700
2001-09-17$23.00$23.00209,300
2001-09-10$27.17$27.17225,400
2001-09-07$28.24$28.24137,300
2001-09-06$29.40$29.40118,800
2001-09-05$30.79$30.79125,500
2001-09-04$29.90$29.9082,200
2001-08-31$30.12$30.1271,900
2001-08-30$30.15$30.1598,000
2001-08-29$30.99$30.9945,700
2001-08-28$30.60$30.6072,500
2001-08-27$31.19$31.19185,100
2001-08-24$30.50$30.5070,600
2001-08-23$30.13$30.13141,900
2001-08-22$28.49$28.4968,400
2001-08-21$27.75$27.75172,200
2001-08-20$27.85$27.8547,700
2001-08-17$27.94$27.9479,300
2001-08-16$28.60$28.60117,800
2001-08-15$27.45$27.45130,100
2001-08-14$28.73$28.73101,500
2001-08-13$28.28$28.28200,500
2001-08-10$26.76$26.7663,600
2001-08-09$27.34$27.34184,400
2001-08-08$25.82$25.8292,400
2001-08-07$28.20$28.20111,900
2001-08-06$26.95$26.9590,200
2001-08-03$27.15$27.15167,700
2001-08-02$27.57$27.57274,700
2001-08-01$29.27$29.27535,200
2001-07-31$26.87$26.87168,000
2001-07-30$26.73$26.7385,800
2001-07-27$26.75$26.7595,300
2001-07-26$27.50$27.50102,900
2001-07-25$27.60$27.60100,800
2001-07-24$27.03$27.03116,400
2001-07-23$28.60$28.60104,900
2001-07-20$29.43$29.4347,700
2001-07-19$28.88$28.88182,600
2001-07-18$27.97$27.9769,400
2001-07-17$27.00$27.00181,400
2001-07-16$25.95$25.95179,400
2001-07-13$27.60$27.60290,300
2001-07-12$27.20$27.20295,800
2001-07-11$28.99$28.9986,000
2001-07-10$29.50$29.50188,000
2001-07-09$31.18$31.18129,100
2001-07-06$30.55$30.55185,600
2001-07-05$32.12$32.1283,900
2001-07-03$34.09$34.0966,100
2001-07-02$33.83$33.83113,500
2001-06-29$34.65$34.65247,500
2001-06-28$34.10$34.10528,000
2001-06-27$34.04$34.0460,500
2001-06-26$34.08$34.08124,300
2001-06-25$33.74$33.7479,100
2001-06-22$34.15$34.15266,900
2001-06-21$35.78$35.78167,500
2001-06-20$34.23$34.23258,100
2001-06-19$33.94$33.94308,100
2001-06-18$33.45$33.45136,200
2001-06-15$34.99$34.99304,200
2001-06-14$33.80$33.80102,900
2001-06-13$34.15$34.15221,300
2001-06-12$35.11$35.11232,700
2001-06-11$37.05$37.05313,500
2001-06-08$35.88$35.8881,100
2001-06-07$36.54$36.54238,400
2001-06-06$36.61$36.61465,500
2001-06-05$36.80$36.80421,100
2001-06-04$34.85$34.85184,900
2001-06-01$33.64$33.64252,300
2001-05-31$31.91$31.91145,700
2001-05-30$31.03$31.03148,000
2001-05-29$31.03$31.0366,200
2001-05-25$31.16$31.1697,400
2001-05-24$31.19$31.19319,100
2001-05-23$31.20$31.20126,800
2001-05-22$31.36$31.36100,300
2001-05-21$31.52$31.5268,200
2001-05-18$30.02$30.02119,400
2001-05-17$30.00$30.00144,700
2001-05-16$27.91$27.91104,300
2001-05-15$26.71$26.7180,200
2001-05-14$26.45$26.45129,100
2001-05-11$26.44$26.4486,100
2001-05-10$27.24$27.2474,000
2001-05-09$27.09$27.09170,700
2001-05-08$27.55$27.55208,700
2001-05-07$27.79$27.79239,400
2001-05-04$28.64$28.64234,200
2001-05-03$29.80$29.80163,800
2001-05-02$30.60$30.60140,400
2001-05-01$31.08$31.08155,100
2001-04-30$31.01$31.01200,000
2001-04-27$29.04$29.04143,700
2001-04-26$27.87$27.8767,000
2001-04-25$26.80$26.8057,000
2001-04-24$25.78$25.7852,800
2001-04-23$26.00$26.0078,400
2001-04-20$28.20$28.20232,000
2001-04-19$29.80$29.80150,400
2001-04-18$28.04$28.04189,000
2001-04-17$24.55$24.5595,300
2001-04-16$24.55$24.5555,800
2001-04-12$25.69$25.6960,000
2001-04-11$23.91$23.9199,900
2001-04-10$25.15$25.15160,400
2001-04-09$23.01$23.01100,700
2001-04-06$22.31$22.31112,100
2001-04-05$22.88$22.88192,900
2001-04-04$21.44$21.44409,000
2001-04-03$21.13$21.13299,800
2001-04-02$22.38$22.37177,800
2001-03-30$22.19$22.19372,800
2001-03-29$23.94$23.94342,000
2001-03-28$24.50$24.5065,100
2001-03-27$24.38$24.37108,900
2001-03-26$24.63$24.62155,200
2001-03-23$23.88$23.87191,100
2001-03-22$23.50$23.501,603,200
2001-03-21$22.88$22.88651,300
2001-03-20$24.25$24.251,513,600
2001-03-19$25.13$25.13440,400
2001-03-16$22.94$22.94339,800
2001-03-15$24.00$24.00142,000
2001-03-14$23.38$23.3780,500
2001-03-13$23.69$23.69296,200
2001-03-12$22.50$22.50347,600
2001-03-09$26.02$26.02217,000
2001-03-08$26.50$26.50186,100
2001-03-07$27.63$27.6399,300
2001-03-06$27.92$27.92145,600
2001-03-05$29.19$29.19129,900
2001-03-02$30.00$30.00222,900
2001-03-01$29.50$29.50183,900
2001-02-28$31.38$31.3862,400
2001-02-27$32.56$32.5666,000
2001-02-26$32.94$32.9482,600
2001-02-23$32.00$32.00116,600
2001-02-22$30.94$30.94104,300
2001-02-21$32.19$32.1985,400
2001-02-20$31.94$31.9441,700
2001-02-16$33.81$33.8166,500
2001-02-15$34.00$34.0053,300
2001-02-14$34.69$34.6986,500
2001-02-13$33.50$33.50117,700
2001-02-12$34.94$34.94125,600
2001-02-09$32.13$32.12143,400
2001-02-08$33.38$33.3767,000
2001-02-07$33.81$33.8179,100
2001-02-06$34.81$34.81130,100
2001-02-05$32.19$32.1985,800
2001-02-02$32.31$32.31104,500
2001-02-01$32.88$32.8887,200
2001-01-31$32.75$32.75193,500
2001-01-30$30.75$30.75315,500
2001-01-29$31.75$31.75269,300
2001-01-26$33.13$33.12461,700
2001-01-25$36.69$36.69101,700
2001-01-24$37.13$37.13316,700
2001-01-23$36.75$36.75135,600
2001-01-22$34.56$34.56112,800
2001-01-19$33.88$33.87167,900
2001-01-18$35.06$35.06132,700
2001-01-17$36.75$36.75340,900
2001-01-16$39.00$39.00305,100
2001-01-12$34.75$34.75272,500
2001-01-11$33.63$33.63125,800
2001-01-10$32.25$32.25205,700
2001-01-09$31.00$31.00160,400
2001-01-08$30.25$30.25178,800
2001-01-05$31.13$31.12281,700
2001-01-04$32.44$32.44363,800
2001-01-03$34.06$34.06442,600
2001-01-02$35.56$35.56263,800