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 — 1995

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
1995-12-29$12.75$12.75173,000
1995-12-28$12.88$12.88158,100
1995-12-27$13.63$13.62294,400
1995-12-26$13.00$13.00140,300
1995-12-22$12.50$12.50179,300
1995-12-21$12.38$12.37388,700
1995-12-20$12.13$12.1368,300
1995-12-19$12.88$12.8856,100
1995-12-18$12.88$12.88279,700
1995-12-15$12.88$12.88134,400
1995-12-14$12.88$12.88286,900
1995-12-13$13.63$13.6289,500
1995-12-12$13.88$13.88128,100
1995-12-11$13.88$13.88124,300
1995-12-08$13.88$13.88163,800
1995-12-07$13.81$13.81443,900
1995-12-06$13.00$13.00193,600
1995-12-05$12.75$12.75365,200
1995-12-04$12.13$12.13222,900
1995-12-01$11.50$11.50132,100
1995-11-30$11.13$11.12467,900
1995-11-29$10.75$10.75338,900
1995-11-28$10.63$10.62309,400
1995-11-27$10.00$10.00339,300
1995-11-24$9.50$9.50118,500
1995-11-22$8.88$8.87718,000
1995-11-21$10.00$10.0092,200
1995-11-20$10.00$10.00159,900
1995-11-17$10.25$10.25167,100
1995-11-16$10.00$10.00109,800
1995-11-15$10.25$10.25191,000
1995-11-14$10.38$10.37158,500
1995-11-13$10.50$10.50543,000
1995-11-10$10.31$10.31294,500
1995-11-09$10.25$10.252,229,000
1995-11-08$11.38$11.3892,800
1995-11-07$11.94$11.9489,800
1995-11-06$12.00$12.0058,300
1995-11-03$12.44$12.4455,800
1995-11-02$12.25$12.2573,200
1995-11-01$12.06$12.06134,600
1995-10-31$12.88$12.8855,900
1995-10-30$13.00$13.00106,300
1995-10-27$12.44$12.44127,300
1995-10-26$13.25$13.2536,000
1995-10-25$13.25$13.2565,200
1995-10-24$13.50$13.50156,500
1995-10-23$14.38$14.37329,100
1995-10-20$13.13$13.12105,900
1995-10-19$13.25$13.2519,800
1995-10-18$13.25$13.2539,400
1995-10-17$13.50$13.5034,700
1995-10-16$13.75$13.7531,400
1995-10-13$14.00$14.00119,100
1995-10-12$13.63$13.62166,200
1995-10-11$13.38$13.38156,800
1995-10-10$13.25$13.2581,000
1995-10-09$13.94$13.9443,900
1995-10-06$14.50$14.5055,800
1995-10-05$14.63$14.62134,200
1995-10-04$14.75$14.7530,700
1995-10-03$15.00$15.00199,200
1995-10-02$15.63$15.63108,100
1995-09-29$15.63$15.63110,700
1995-09-28$15.75$15.75418,800
1995-09-27$15.00$15.00226,300
1995-09-26$14.88$14.8876,100
1995-09-25$14.88$14.88131,300
1995-09-22$15.00$15.00147,400
1995-09-21$15.50$15.50344,900
1995-09-20$15.13$15.12460,000
1995-09-19$15.69$15.69900,800
1995-09-18$13.75$13.75704,600
1995-09-15$12.50$12.501,348,500
1995-09-14$14.13$14.12300,900
1995-09-13$15.50$15.5078,000
1995-09-12$16.00$16.0060,800
1995-09-11$16.00$16.0062,200
1995-09-08$15.75$15.7557,500
1995-09-07$15.88$15.88201,900
1995-09-06$16.50$16.50233,300
1995-09-05$16.38$16.37338,600
1995-09-01$15.50$15.50114,500
1995-08-31$15.38$15.38237,500
1995-08-30$14.50$14.5082,100
1995-08-29$14.63$14.62241,100
1995-08-28$14.38$14.37196,100
1995-08-25$14.88$14.88410,300
1995-08-24$14.06$14.06183,800
1995-08-23$14.06$14.06529,700
1995-08-22$12.88$12.88113,800
1995-08-21$12.75$12.7540,100
1995-08-18$12.63$12.6279,400
1995-08-17$13.00$13.00229,800
1995-08-16$13.13$13.12190,500
1995-08-15$12.38$12.37111,800
1995-08-14$13.00$13.0066,000
1995-08-11$13.06$13.06209,400
1995-08-10$13.06$13.06481,500
1995-08-09$12.13$12.13347,100
1995-08-08$11.63$11.62193,100
1995-08-07$11.88$11.8776,200
1995-08-04$12.25$12.2569,600
1995-08-03$12.00$12.0094,600
1995-08-02$12.25$12.25239,400
1995-08-01$12.75$12.75524,400
1995-07-31$13.06$13.06492,100
1995-07-28$11.63$11.62328,000
1995-07-27$11.88$11.871,066,300
1995-07-26$11.25$11.251,183,500
1995-07-25$9.13$9.1360,900
1995-07-24$9.13$9.1395,000
1995-07-21$9.00$9.0063,200
1995-07-20$9.00$9.0059,900
1995-07-19$9.25$9.25479,100
1995-07-18$9.52$9.52146,200
1995-07-17$9.63$9.63223,800
1995-07-14$9.50$9.5046,500
1995-07-13$9.50$9.5047,700
1995-07-12$9.38$9.37192,100
1995-07-11$9.13$9.13128,300
1995-07-10$8.88$8.87120,400
1995-07-07$9.00$9.0069,500
1995-07-06$9.00$9.0029,900
1995-07-05$9.13$9.1333,800
1995-07-03$9.13$9.1312,200
1995-06-30$9.00$9.00148,600
1995-06-29$9.13$9.13160,300
1995-06-28$9.00$9.00229,600
1995-06-27$8.25$8.25292,300
1995-06-26$8.88$8.87367,600
1995-06-23$9.00$9.0089,100
1995-06-22$9.25$9.2555,600
1995-06-21$9.25$9.25193,100
1995-06-20$9.38$9.37355,700
1995-06-19$9.25$9.25397,100
1995-06-16$8.88$8.87132,300
1995-06-15$8.63$8.63102,900
1995-06-14$8.25$8.25283,800
1995-06-13$8.00$8.00576,700
1995-06-12$8.50$8.50441,600
1995-06-09$8.19$8.19632,100
1995-06-08$7.50$7.50593,800
1995-06-07$6.88$6.87224,300
1995-06-06$5.75$5.7531,700
1995-06-05$5.50$5.5032,900
1995-06-02$5.50$5.5079,800
1995-06-01$6.13$6.1339,200
1995-05-31$6.13$6.1325,900
1995-05-30$6.00$6.0033,900
1995-05-26$5.88$5.889,900
1995-05-25$5.88$5.8826,400
1995-05-24$5.88$5.8824,300
1995-05-23$6.00$6.0062,900
1995-05-22$6.00$6.0027,100
1995-05-19$6.13$6.1319,600
1995-05-18$6.13$6.1333,400
1995-05-17$6.25$6.2530,700
1995-05-16$6.25$6.2519,400
1995-05-15$6.25$6.25137,400
1995-05-12$6.50$6.5031,500
1995-05-11$6.38$6.3760,500
1995-05-10$6.38$6.3799,200
1995-05-09$6.25$6.2533,600
1995-05-08$6.38$6.3721,400
1995-05-05$6.25$6.2530,400
1995-05-04$6.50$6.5059,100
1995-05-03$6.25$6.2538,000
1995-05-02$6.25$6.2535,200
1995-05-01$6.38$6.37122,800
1995-04-28$6.38$6.3730,100
1995-04-27$6.38$6.3751,900
1995-04-26$6.13$6.1310,300
1995-04-25$6.38$6.3714,700
1995-04-24$6.38$6.3724,200
1995-04-21$6.13$6.1316,200
1995-04-20$6.25$6.2589,900
1995-04-19$6.00$6.0055,700
1995-04-18$6.31$6.3185,500
1995-04-17$7.00$7.0027,300
1995-04-13$6.75$6.7559,900
1995-04-12$6.75$6.7515,400
1995-04-11$7.00$7.0039,400
1995-04-10$7.00$7.0038,400
1995-04-07$6.75$6.7533,600
1995-04-06$6.88$6.8766,500
1995-04-05$7.00$7.0096,600
1995-04-04$6.75$6.7559,000
1995-04-03$6.38$6.3797,500
1995-03-31$6.25$6.2554,400
1995-03-30$6.38$6.3732,600
1995-03-29$6.38$6.3748,000
1995-03-28$6.00$6.0035,400
1995-03-27$6.25$6.2551,900
1995-03-24$6.25$6.2582,700
1995-03-23$6.13$6.1363,300
1995-03-22$6.25$6.2535,700
1995-03-21$6.13$6.1362,000
1995-03-20$5.88$5.8869,700
1995-03-17$5.88$5.8852,000
1995-03-16$5.75$5.7571,200
1995-03-15$5.63$5.6353,700
1995-03-14$5.75$5.7558,200
1995-03-13$6.00$6.0033,800
1995-03-10$6.00$6.0044,600
1995-03-09$5.63$5.6350,500
1995-03-08$6.00$6.0041,600
1995-03-07$6.00$6.0081,200
1995-03-06$6.00$6.0074,900
1995-03-03$5.88$5.8876,900
1995-03-02$5.75$5.75140,100
1995-03-01$5.88$5.8896,500
1995-02-28$6.25$6.2532,900
1995-02-27$6.13$6.1392,200
1995-02-24$6.19$6.1974,300
1995-02-23$6.56$6.5631,200
1995-02-22$6.50$6.5043,500
1995-02-21$6.75$6.7512,900
1995-02-17$6.75$6.7548,300
1995-02-16$7.00$7.0039,700
1995-02-15$7.00$7.0055,400
1995-02-14$7.06$7.0641,800
1995-02-13$7.00$7.0047,800
1995-02-10$7.00$7.00130,900
1995-02-09$7.00$7.00111,300
1995-02-08$7.00$7.00121,800
1995-02-07$6.88$6.8771,600
1995-02-06$7.00$7.0088,200
1995-02-03$6.88$6.8774,400
1995-02-02$6.63$6.6270,300
1995-02-01$6.75$6.75123,300
1995-01-31$6.63$6.6254,300
1995-01-30$6.50$6.5076,800
1995-01-27$6.13$6.13226,200
1995-01-26$6.63$6.62128,200
1995-01-25$6.88$6.8789,500
1995-01-24$7.00$7.00172,200
1995-01-23$7.00$7.00113,800
1995-01-20$7.00$7.00262,600
1995-01-19$7.00$7.00206,900
1995-01-18$6.88$6.87327,500
1995-01-17$6.75$6.75396,800
1995-01-16$6.50$6.50411,500
1995-01-13$6.13$6.13535,000
1995-01-12$6.25$6.25745,400
1995-01-11$6.88$6.871,969,500
1995-01-10$6.38$6.372,658,400
1995-01-09$4.69$4.691,035,300
1995-01-06$3.50$3.5059,200
1995-01-05$3.50$3.5027,300
1995-01-04$3.50$3.5028,700
1995-01-03$3.31$3.3163,900