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 — 2020

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2020-12-31$483.11$483.11897,900——
2020-12-30$478.30$478.30633,200——
2020-12-29$484.22$484.22558,200——
2020-12-28$482.96$482.96713,400——
2020-12-24$488.93$488.93289,100——
2020-12-23$492.19$492.19545,700——
2020-12-22$490.06$490.06849,600——
2020-12-21$496.74$496.741,009,300——
2020-12-18$498.89$498.891,820,900——
2020-12-17$496.21$496.21856,300——
2020-12-16$486.57$486.57862,500——
2020-12-15$491.79$491.791,086,300——
2020-12-14$500.38$500.381,245,800——
2020-12-11$479.77$479.771,013,500——
2020-12-10$478.98$478.981,184,100——
2020-12-09$488.64$488.64934,300——
2020-12-08$497.14$497.141,007,900——
2020-12-07$495.41$495.41881,900——
2020-12-04$492.45$492.45961,200——
2020-12-03$498.84$498.84966,000——
2020-12-02$505.13$505.13782,700——
2020-12-01$514.07$514.07937,400——
2020-11-30$516.03$516.031,707,500——
2020-11-27$514.05$514.05498,200——
2020-11-25$508.31$508.31711,800——
2020-11-24$506.10$506.101,270,300——
2020-11-23$523.61$523.611,764,400——
2020-11-20$518.74$518.741,045,300——
2020-11-19$514.71$514.71947,600——
2020-11-18$519.04$519.041,240,800——
2020-11-17$538.15$538.151,051,700——
2020-11-16$559.29$559.29542,100——
2020-11-13$566.43$566.43565,800——
2020-11-12$556.78$556.78548,500——
2020-11-11$567.73$567.73671,000——
2020-11-10$559.22$559.22839,200——
2020-11-09$567.55$567.551,321,100——
2020-11-06$578.03$578.03748,400——
2020-11-05$588.81$588.81944,300——
2020-11-04$587.14$587.141,195,600——
2020-11-03$557.19$557.19490,400——
2020-11-02$548.58$548.58835,900——
2020-10-30$543.56$543.561,164,700——
2020-10-29$555.79$555.79905,000——
2020-10-28$567.04$567.04592,900——
2020-10-27$582.52$582.52526,200——
2020-10-26$585.74$585.74533,500——
2020-10-23$579.81$579.81565,900——
2020-10-22$575.73$575.73467,200——
2020-10-21$572.40$572.40493,800——
2020-10-20$576.63$576.63637,500——
2020-10-19$583.14$583.14778,400——
2020-10-16$599.74$599.741,168,800——
2020-10-15$585.18$585.181,048,300——
2020-10-14$600.82$600.82951,400——
2020-10-13$607.98$607.981,243,900——
2020-10-12$601.55$601.551,003,200——
2020-10-09$602.07$602.071,190,100——
2020-10-08$599.88$599.882,355,600——
2020-10-07$591.69$591.69957,200——
2020-10-06$581.64$581.641,725,300——
2020-10-05$605.08$605.084,843,300——
2020-10-02$564.80$564.801,235,100——
2020-10-01$568.14$568.141,092,600——
2020-09-30$559.78$559.782,159,300——
2020-09-29$573.61$573.61454,100——
2020-09-28$571.92$571.92637,000——
2020-09-25$574.06$574.06643,600——
2020-09-24$557.46$557.46457,900——
2020-09-23$565.19$565.19535,600——
2020-09-22$571.51$571.51580,500——
2020-09-21$555.70$555.70682,500——
2020-09-18$555.24$555.241,977,100——
2020-09-17$565.00$565.00686,500——
2020-09-16$569.15$569.15804,400——
2020-09-15$579.90$579.90612,400——
2020-09-14$564.20$564.20762,200——
2020-09-11$544.75$544.75814,100——
2020-09-10$550.10$550.10879,300——
2020-09-09$571.15$571.15620,400——
2020-09-08$561.89$561.89688,300——
2020-09-04$580.36$580.36715,400——
2020-09-03$577.40$577.40841,500——
2020-09-02$610.15$610.15878,000——
2020-09-01$592.68$592.681,028,000——
2020-08-31$619.93$619.93908,100——
2020-08-28$602.61$602.61584,200——
2020-08-27$614.97$614.97534,900——
2020-08-26$612.00$612.00487,900——
2020-08-25$610.50$610.50734,300——
2020-08-24$594.77$594.77991,900——
2020-08-21$605.49$605.49662,200——
2020-08-20$616.89$616.89656,600——
2020-08-19$629.63$629.63720,700——
2020-08-18$618.59$618.59387,900——
2020-08-17$620.73$620.73403,900——
2020-08-14$612.57$612.57302,900——
2020-08-13$610.89$610.89378,100——
2020-08-12$612.35$612.35562,600——
2020-08-11$598.86$598.86587,200——
2020-08-10$608.24$608.24624,300——
2020-08-07$620.21$620.21432,600——
2020-08-06$621.21$621.21663,500——
2020-08-05$624.52$624.521,132,700——
2020-08-04$648.43$648.43747,700——
2020-08-03$645.18$645.18487,200——
2020-07-31$632.07$632.07663,000——
2020-07-30$631.47$631.47615,700——
2020-07-29$632.16$632.16369,900——
2020-07-28$631.00$631.00452,000——
2020-07-27$637.40$637.40850,800——
2020-07-24$608.94$608.941,206,000——
2020-07-23$630.31$630.31571,300——
2020-07-22$637.53$637.53497,200——
2020-07-21$638.86$638.86753,400——
2020-07-20$658.21$658.21671,100——
2020-07-17$644.06$644.06713,700——
2020-07-16$632.21$632.21410,300——
2020-07-15$632.74$632.74568,800——
2020-07-14$641.23$641.23864,200——
2020-07-13$615.88$615.88733,200——
2020-07-10$620.86$620.86929,000——
2020-07-09$640.63$640.631,009,600——
2020-07-08$640.34$640.34660,100——
2020-07-07$640.88$640.881,423,100——
2020-07-06$627.25$627.251,041,000——
2020-07-02$622.45$622.45802,500——
2020-07-01$609.17$609.17984,700——
2020-06-30$623.65$623.65754,900——
2020-06-29$610.87$610.87663,200——
2020-06-26$611.36$611.361,817,800——
2020-06-25$619.96$619.96813,900——
2020-06-24$605.04$605.041,459,600——
2020-06-23$628.76$628.76832,700——
2020-06-22$628.48$628.481,238,800——
2020-06-19$643.92$643.922,668,600——
2020-06-18$597.35$597.35645,000——
2020-06-17$603.10$603.10678,000——
2020-06-16$592.90$592.90741,400——
2020-06-15$590.57$590.57676,100——
2020-06-12$588.39$588.391,230,200——
2020-06-11$596.16$596.161,515,800——
2020-06-10$606.59$606.59925,500——
2020-06-09$608.59$608.59849,900——
2020-06-08$604.04$604.04964,700——
2020-06-05$597.00$597.001,324,100——
2020-06-04$598.54$598.54851,800——
2020-06-03$604.28$604.281,541,000——
2020-06-02$617.66$617.661,511,500——
2020-06-01$599.47$599.471,579,300——
2020-05-29$612.81$612.816,675,100——
2020-05-28$578.21$578.217,869,500——
2020-05-27$544.01$544.015,902,600——
2020-05-26$545.21$545.213,742,000——
2020-05-22$569.91$569.91653,500——
2020-05-21$560.98$560.98812,600——
2020-05-20$576.89$576.89840,800——
2020-05-19$557.60$557.60737,900——
2020-05-18$560.28$560.28962,800——
2020-05-15$576.72$576.72865,700——
2020-05-14$570.86$570.86702,300——
2020-05-13$577.12$577.121,058,900——
2020-05-12$557.54$557.54918,600——
2020-05-11$574.11$574.111,040,900——
2020-05-08$563.40$563.40698,900——
2020-05-07$559.83$559.831,132,100——
2020-05-06$553.50$553.501,906,200——
2020-05-05$574.37$574.371,550,700——
2020-05-04$541.82$541.82885,600——
2020-05-01$525.50$525.50482,200——
2020-04-30$525.88$525.88938,000——
2020-04-29$516.15$516.151,306,300——
2020-04-28$528.61$528.611,128,200——
2020-04-27$547.52$547.521,467,800——
2020-04-24$566.21$566.21837,100——
2020-04-23$565.52$565.52739,500——
2020-04-22$558.08$558.08825,800——
2020-04-21$544.46$544.461,026,300——
2020-04-20$567.99$567.99949,300——
2020-04-17$568.79$568.792,133,500——
2020-04-16$539.93$539.931,206,300——
2020-04-15$511.69$511.69836,800——
2020-04-14$524.84$524.84962,600——
2020-04-13$517.02$517.02789,800——
2020-04-09$512.96$512.961,011,800——
2020-04-08$512.33$512.331,167,100——
2020-04-07$501.51$501.511,046,900——
2020-04-06$504.27$504.271,285,500——
2020-04-03$493.32$493.321,169,500——
2020-04-02$498.75$498.751,058,900——
2020-04-01$496.65$496.651,679,800——
2020-03-31$488.29$488.291,953,200——
2020-03-30$473.00$473.001,337,000——
2020-03-27$449.52$449.521,109,000——
2020-03-26$452.30$452.301,686,200——
2020-03-25$429.78$429.781,288,000——
2020-03-24$449.53$449.531,615,700——
2020-03-23$455.63$455.631,829,300——
2020-03-20$438.45$438.452,027,000——
2020-03-19$489.83$489.832,358,200——
2020-03-18$485.00$485.002,529,500——
2020-03-17$491.69$491.693,856,500——
2020-03-16$440.83$440.831,926,300——
2020-03-13$465.55$465.551,380,700——
2020-03-12$431.89$431.891,627,800——
2020-03-11$464.70$464.701,351,800——
2020-03-10$475.02$475.021,390,500——
2020-03-09$474.44$474.441,344,100——
2020-03-06$494.43$494.431,130,700——
2020-03-05$488.17$488.171,270,200——
2020-03-04$493.48$493.481,960,700——
2020-03-03$461.55$461.551,210,600——
2020-03-02$464.75$464.751,713,100——
2020-02-28$444.57$444.571,591,000——
2020-02-27$431.61$431.612,093,500——
2020-02-26$457.92$457.922,299,300——
2020-02-25$442.35$442.353,568,800——
2020-02-24$425.38$425.382,959,700——
2020-02-21$403.15$403.15655,300——
2020-02-20$399.14$399.14660,800——
2020-02-19$400.81$400.81564,000——
2020-02-18$397.65$397.65512,200——
2020-02-14$399.55$399.55536,800——
2020-02-13$398.81$398.81656,800——
2020-02-12$406.30$406.301,076,200——
2020-02-11$396.75$396.75992,800——
2020-02-10$386.21$386.21939,500——
2020-02-07$381.87$381.871,172,400——
2020-02-06$389.85$389.851,605,500——
2020-02-05$372.16$372.161,404,400——
2020-02-04$356.00$356.00956,800——
2020-02-03$341.12$341.12930,100——
2020-01-31$337.94$337.94988,600——
2020-01-30$336.18$336.18664,100——
2020-01-29$339.25$339.25558,600——
2020-01-28$344.08$344.08729,500——
2020-01-27$339.42$339.42775,000——
2020-01-24$345.28$345.281,103,100——
2020-01-23$356.60$356.60737,600——
2020-01-22$359.14$359.141,320,300——
2020-01-21$363.71$363.711,488,400——
2020-01-17$385.94$385.94862,800——
2020-01-16$385.57$385.57620,500——
2020-01-15$390.75$390.75680,700——
2020-01-14$387.62$387.62638,900——
2020-01-13$378.93$378.93637,200——
2020-01-10$381.41$381.41568,100——
2020-01-09$383.47$383.47587,500——
2020-01-08$382.42$382.42743,100——
2020-01-07$373.13$373.13736,400——
2020-01-06$371.74$371.74690,800——
2020-01-03$369.16$369.16500,800——
2020-01-02$373.35$373.35512,400——