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 — 2023

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2023-12-29$878.29$878.29534,300
2023-12-28$881.70$881.70637,500
2023-12-27$874.37$874.371,273,900
2023-12-26$849.53$849.53306,200
2023-12-22$846.72$846.72742,800
2023-12-21$841.88$841.88332,600
2023-12-20$841.79$841.79515,900
2023-12-19$848.39$848.39844,200
2023-12-18$850.87$850.87627,400
2023-12-15$859.14$859.141,791,700
2023-12-14$876.00$876.00598,100
2023-12-13$876.12$876.12680,000
2023-12-12$863.76$863.76500,500
2023-12-11$848.42$848.42458,700
2023-12-08$840.14$840.14388,100
2023-12-07$849.18$849.18567,300
2023-12-06$835.75$835.75554,100
2023-12-05$820.90$820.90319,400
2023-12-04$823.32$823.32508,400
2023-12-01$814.86$814.86560,200
2023-11-30$823.81$823.81954,600
2023-11-29$808.59$808.59627,700
2023-11-28$801.14$801.14446,700
2023-11-27$798.08$798.08440,100
2023-11-24$798.30$798.30171,600
2023-11-22$799.73$799.73233,100
2023-11-21$798.83$798.83310,700
2023-11-20$801.64$801.64340,700
2023-11-17$802.43$802.43354,500
2023-11-16$796.54$796.54493,800
2023-11-15$792.38$792.38502,100
2023-11-14$793.70$793.70545,200
2023-11-13$796.70$796.70736,700
2023-11-10$798.94$798.94994,800
2023-11-09$800.26$800.26622,200
2023-11-08$822.79$822.79637,200
2023-11-07$830.79$830.79670,800
2023-11-06$832.41$832.41422,700
2023-11-03$816.90$816.90456,200
2023-11-02$818.79$818.79729,300
2023-11-01$791.27$791.27419,500
2023-10-31$779.89$779.89382,200
2023-10-30$777.67$777.67371,300
2023-10-27$775.18$775.18438,900
2023-10-26$792.01$792.01351,200
2023-10-25$797.04$797.04340,100
2023-10-24$804.28$804.28346,900
2023-10-23$795.54$795.54473,400
2023-10-20$808.47$808.47743,100
2023-10-19$808.64$808.64488,400
2023-10-18$826.03$826.03383,800
2023-10-17$836.85$836.85323,100
2023-10-16$843.66$843.66381,400
2023-10-13$839.63$839.63526,400
2023-10-12$838.49$838.49308,200
2023-10-11$836.07$836.07306,800
2023-10-10$834.96$834.96261,400
2023-10-09$831.82$831.82256,700
2023-10-06$836.57$836.57392,400
2023-10-05$831.12$831.12387,300
2023-10-04$814.99$814.99344,600
2023-10-03$808.31$808.31426,700
2023-10-02$818.03$818.03487,700
2023-09-29$822.96$822.96409,800
2023-09-28$834.57$834.57369,900
2023-09-27$832.56$832.56380,300
2023-09-26$832.41$832.41479,800
2023-09-25$834.64$834.64294,700
2023-09-22$824.84$824.84464,500
2023-09-21$823.38$823.38400,300
2023-09-20$831.62$831.62304,300
2023-09-19$836.76$836.76344,100
2023-09-18$824.51$824.51406,100
2023-09-15$823.40$823.401,032,400
2023-09-14$832.38$832.38388,900
2023-09-13$826.25$826.25396,500
2023-09-12$832.77$832.77296,100
2023-09-11$833.53$833.53374,800
2023-09-08$830.69$830.69421,600
2023-09-07$825.26$825.26356,900
2023-09-06$818.39$818.39396,200
2023-09-05$822.91$822.91314,300
2023-09-01$831.63$831.63253,600
2023-08-31$826.49$826.49457,500
2023-08-30$834.95$834.95302,100
2023-08-29$830.19$830.19407,200
2023-08-28$830.89$830.89249,600
2023-08-25$830.35$830.35404,500
2023-08-24$831.21$831.21457,800
2023-08-23$840.81$840.81540,500
2023-08-22$840.63$840.63765,900
2023-08-21$844.37$844.371,082,900
2023-08-18$812.40$812.401,065,900
2023-08-17$796.73$796.73320,600
2023-08-16$797.34$797.34345,100
2023-08-15$805.91$805.91269,200
2023-08-14$808.38$808.38354,500
2023-08-11$806.95$806.95526,100
2023-08-10$793.01$793.01387,300
2023-08-09$785.61$785.61430,100
2023-08-08$780.32$780.32441,800
2023-08-07$774.74$774.74474,000
2023-08-04$766.44$766.44501,000
2023-08-03$771.45$771.451,068,800
2023-08-02$732.12$732.12623,600
2023-08-01$739.07$739.07334,300
2023-07-31$741.91$741.91445,000
2023-07-28$746.10$746.10744,800
2023-07-27$744.66$744.66884,300
2023-07-26$730.96$730.96399,300
2023-07-25$729.88$729.88444,600
2023-07-24$727.13$727.13543,600
2023-07-21$734.63$734.631,813,600
2023-07-20$723.02$723.02628,800
2023-07-19$719.01$719.01581,100
2023-07-18$726.55$726.55481,900
2023-07-17$721.61$721.61550,200
2023-07-14$718.52$718.52621,500
2023-07-13$720.98$720.98413,000
2023-07-12$718.42$718.42588,900
2023-07-11$716.83$716.83570,400
2023-07-10$703.36$703.361,078,900
2023-07-07$692.45$692.45696,900
2023-07-06$704.83$704.83608,800
2023-07-05$717.83$717.83641,900
2023-07-03$718.09$718.09345,000
2023-06-30$718.54$718.541,015,200
2023-06-29$708.42$708.42914,900
2023-06-28$700.03$700.031,828,300
2023-06-27$716.09$716.092,034,500
2023-06-26$784.38$784.38586,800
2023-06-23$779.73$779.73615,100
2023-06-22$779.81$779.81447,900
2023-06-21$778.77$778.77371,100
2023-06-20$781.21$781.21507,800
2023-06-16$783.05$783.05993,700
2023-06-15$783.07$783.07648,100
2023-06-14$771.11$771.11495,600
2023-06-13$767.35$767.35474,000
2023-06-12$754.01$754.01415,100
2023-06-09$746.52$746.52536,600
2023-06-08$750.12$750.12359,400
2023-06-07$738.63$738.63473,700
2023-06-06$748.14$748.14394,600
2023-06-05$750.27$750.27544,300
2023-06-02$739.95$739.95527,300
2023-06-01$731.17$731.17526,600
2023-05-31$735.56$735.56740,200
2023-05-30$728.60$728.60497,000
2023-05-26$725.05$725.05750,800
2023-05-25$725.00$725.00569,300
2023-05-24$737.40$737.40547,200
2023-05-23$748.56$748.56411,300
2023-05-22$751.50$751.50626,900
2023-05-19$759.05$759.05555,900
2023-05-18$747.48$747.48501,500
2023-05-17$749.63$749.63524,000
2023-05-16$742.28$742.28420,900
2023-05-15$750.96$750.96355,900
2023-05-12$744.35$744.35394,100
2023-05-11$745.57$745.57661,800
2023-05-10$749.59$749.59432,800
2023-05-09$754.88$754.88464,300
2023-05-08$752.12$752.12539,900
2023-05-05$762.10$762.10637,000
2023-05-04$753.88$753.881,229,000
2023-05-03$803.17$803.17786,000
2023-05-02$798.45$798.45610,700
2023-05-01$806.72$806.72297,500
2023-04-28$801.79$801.79470,400
2023-04-27$792.29$792.29749,300
2023-04-26$778.00$778.00585,600
2023-04-25$789.58$789.58468,000
2023-04-24$797.04$797.04374,800
2023-04-21$800.73$800.73545,500
2023-04-20$798.10$798.10495,400
2023-04-19$808.86$808.86352,700
2023-04-18$808.01$808.01499,700
2023-04-17$819.74$819.74351,400
2023-04-14$829.33$829.33456,900
2023-04-13$830.35$830.35471,900
2023-04-12$820.43$820.43414,200
2023-04-11$819.64$819.64291,400
2023-04-10$823.76$823.76377,100
2023-04-06$828.73$828.73550,000
2023-04-05$825.22$825.22560,000
2023-04-04$822.09$822.09398,000
2023-04-03$826.19$826.19451,400
2023-03-31$821.67$821.67866,200
2023-03-30$811.50$811.50625,800
2023-03-29$819.35$819.35459,200
2023-03-28$826.97$826.97362,500
2023-03-27$820.41$820.41802,000
2023-03-24$820.00$820.001,129,400
2023-03-23$802.16$802.161,994,000
2023-03-22$751.30$751.30322,900
2023-03-21$759.76$759.76372,100
2023-03-20$759.25$759.25587,800
2023-03-17$747.65$747.65893,600
2023-03-16$749.75$749.751,023,900
2023-03-15$760.30$760.30499,300
2023-03-14$766.80$766.80535,500
2023-03-13$752.33$752.33505,200
2023-03-10$747.00$747.00505,300
2023-03-09$743.75$743.75600,000
2023-03-08$745.20$745.20670,300
2023-03-07$773.85$773.85757,900
2023-03-06$780.38$780.38469,500
2023-03-03$779.30$779.30604,800
2023-03-02$768.90$768.90425,200
2023-03-01$770.44$770.44586,000
2023-02-28$760.42$760.42622,700
2023-02-27$757.79$757.79557,100
2023-02-24$756.99$756.99525,900
2023-02-23$759.66$759.66553,300
2023-02-22$748.08$748.08415,500
2023-02-21$746.52$746.52411,700
2023-02-17$748.74$748.74492,700
2023-02-16$736.33$736.33555,300
2023-02-15$752.40$752.40341,100
2023-02-14$754.21$754.21486,000
2023-02-13$763.97$763.97494,800
2023-02-10$757.61$757.61606,800
2023-02-09$744.77$744.77524,500
2023-02-08$749.66$749.66617,500
2023-02-07$769.94$769.94885,900
2023-02-06$780.86$780.861,064,700
2023-02-03$783.13$783.131,448,500
2023-02-02$751.20$751.20935,200
2023-02-01$758.00$758.00802,100
2023-01-31$758.47$758.47816,400
2023-01-30$736.46$736.46499,500
2023-01-27$742.83$742.83417,600
2023-01-26$742.30$742.30346,400
2023-01-25$741.18$741.18584,300
2023-01-24$727.47$727.47326,400
2023-01-23$729.91$729.91569,900
2023-01-20$722.00$722.00939,800
2023-01-19$715.57$715.57583,800
2023-01-18$724.55$724.55487,500
2023-01-17$728.11$728.11641,000
2023-01-13$722.13$722.13489,500
2023-01-12$714.57$714.57538,800
2023-01-11$709.94$709.94592,600
2023-01-10$698.95$698.95793,200
2023-01-09$680.49$680.491,664,400
2023-01-06$737.15$737.15602,400
2023-01-05$723.76$723.76499,800
2023-01-04$726.49$726.49517,200
2023-01-03$720.47$720.47508,500