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.

View year

Historical Stock Price — 2017

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2017-12-29$375.96$375.96624,100
2017-12-28$382.82$382.82354,900
2017-12-27$384.09$384.09409,400
2017-12-26$387.43$387.43454,500
2017-12-22$381.00$381.00412,800
2017-12-21$384.14$384.14508,800
2017-12-20$382.89$382.89516,500
2017-12-19$385.72$385.72579,200
2017-12-18$383.39$383.39623,700
2017-12-15$388.95$388.951,271,200
2017-12-14$383.12$383.12424,500
2017-12-13$386.67$386.67570,600
2017-12-12$381.72$381.72456,400
2017-12-11$381.32$381.32518,000
2017-12-08$380.78$380.78663,900
2017-12-07$373.61$373.61513,400
2017-12-06$375.13$375.13740,900
2017-12-05$372.34$372.34792,500
2017-12-04$378.37$378.371,075,100
2017-12-01$373.47$373.471,819,500
2017-11-30$361.86$361.861,292,700
2017-11-29$358.63$358.632,652,300
2017-11-28$366.00$366.001,532,000
2017-11-27$374.53$374.531,194,500
2017-11-24$384.85$384.85250,500
2017-11-22$387.54$387.54367,400
2017-11-21$384.44$384.44784,700
2017-11-20$385.22$385.22845,700
2017-11-17$391.59$391.59669,100
2017-11-16$394.69$394.69674,200
2017-11-15$386.30$386.30753,800
2017-11-14$384.80$384.801,109,600
2017-11-13$393.62$393.621,416,700
2017-11-10$404.54$404.54770,800
2017-11-09$406.21$406.21941,900
2017-11-08$415.17$415.171,310,100
2017-11-07$404.39$404.39786,000
2017-11-06$406.63$406.63833,500
2017-11-03$408.41$408.41896,600
2017-11-02$397.45$397.451,453,300
2017-11-01$397.00$397.001,161,000
2017-10-31$402.62$402.621,051,200
2017-10-30$406.52$406.52812,000
2017-10-27$409.22$409.221,111,600
2017-10-26$416.04$416.04852,200
2017-10-25$421.93$421.93982,200
2017-10-24$426.51$426.51701,900
2017-10-23$432.76$432.76778,600
2017-10-20$432.98$432.98990,100
2017-10-19$440.94$440.94639,300
2017-10-18$439.37$439.37547,600
2017-10-17$442.56$442.56644,300
2017-10-16$445.68$445.68508,700
2017-10-13$442.96$442.96718,100
2017-10-12$447.15$447.15704,800
2017-10-11$452.97$452.971,197,800
2017-10-10$461.13$461.13655,700
2017-10-09$469.56$469.56482,800
2017-10-06$469.95$469.95986,000
2017-10-05$463.40$463.401,421,300
2017-10-04$456.05$456.05610,700
2017-10-03$455.63$455.63596,700
2017-10-02$462.24$462.241,175,800
2017-09-29$447.12$447.12909,600
2017-09-28$435.11$435.11456,600
2017-09-27$435.43$435.43499,800
2017-09-26$434.97$434.97453,400
2017-09-25$438.15$438.15834,100
2017-09-22$432.72$432.72626,300
2017-09-21$433.45$433.45556,900
2017-09-20$438.17$438.17692,600
2017-09-19$431.38$431.38699,300
2017-09-18$434.64$434.64672,300
2017-09-15$433.45$433.451,002,400
2017-09-14$441.26$441.26987,700
2017-09-13$437.74$437.741,062,800
2017-09-12$444.48$444.48880,600
2017-09-11$445.11$445.111,984,700
2017-09-08$471.49$471.49760,800
2017-09-07$471.92$471.921,554,400
2017-09-06$500.22$500.22441,600
2017-09-05$494.36$494.36657,700
2017-09-01$504.00$504.00699,900
2017-08-31$496.90$496.90871,800
2017-08-30$487.12$487.12729,100
2017-08-29$479.03$479.03546,200
2017-08-28$479.22$479.22831,200
2017-08-25$477.80$477.80531,000
2017-08-24$485.26$485.26539,000
2017-08-23$477.15$477.15410,600
2017-08-22$478.65$478.65503,600
2017-08-21$469.74$469.74510,700
2017-08-18$467.98$467.98549,500
2017-08-17$464.02$464.02711,600
2017-08-16$468.54$468.54383,300
2017-08-15$472.57$472.57378,500
2017-08-14$474.54$474.54537,400
2017-08-11$466.59$466.59496,000
2017-08-10$460.08$460.08573,700
2017-08-09$474.09$474.09980,000
2017-08-08$469.68$469.68484,700
2017-08-07$470.10$470.10499,100
2017-08-04$468.76$468.76771,200
2017-08-03$467.11$467.111,208,800
2017-08-02$476.82$476.82958,200
2017-08-01$472.00$472.001,282,100
2017-07-31$491.62$491.621,009,000
2017-07-28$508.71$508.71620,100
2017-07-27$508.41$508.41958,100
2017-07-26$515.63$515.63369,500
2017-07-25$513.45$513.45596,300
2017-07-24$521.22$521.22474,400
2017-07-21$515.92$515.92617,700
2017-07-20$521.13$521.13772,200
2017-07-19$506.79$506.79850,800
2017-07-18$497.63$497.63450,700
2017-07-17$498.11$498.11620,000
2017-07-14$504.90$504.90608,100
2017-07-13$505.05$505.05790,000
2017-07-12$496.99$496.99576,500
2017-07-11$492.00$492.00829,100
2017-07-10$499.91$499.91888,400
2017-07-07$496.50$496.50729,100
2017-07-06$490.19$490.19898,600
2017-07-05$497.00$497.00823,000
2017-07-03$487.73$487.73603,500
2017-06-30$491.14$491.141,267,500
2017-06-29$509.93$509.93922,100
2017-06-28$513.19$513.19935,100
2017-06-27$502.12$502.121,447,300
2017-06-26$515.91$515.911,172,500
2017-06-23$517.33$517.331,885,500
2017-06-22$526.53$526.531,843,100
2017-06-21$522.02$522.021,743,100
2017-06-20$495.33$495.332,134,900
2017-06-19$471.67$471.67807,600
2017-06-16$459.91$459.911,658,600
2017-06-15$469.50$469.50796,800
2017-06-14$476.84$476.84662,500
2017-06-13$473.67$473.67503,700
2017-06-12$476.23$476.23884,600
2017-06-09$475.79$475.791,027,200
2017-06-08$485.90$485.90595,200
2017-06-07$482.00$482.00843,900
2017-06-06$477.73$477.73729,400
2017-06-05$480.26$480.26912,800
2017-06-02$480.43$480.431,717,600
2017-06-01$466.02$466.021,204,600
2017-05-31$459.06$459.061,313,800
2017-05-30$448.67$448.67865,700
2017-05-26$455.17$455.17475,400
2017-05-25$455.70$455.70671,600
2017-05-24$458.24$458.24461,300
2017-05-23$461.37$461.37573,900
2017-05-22$460.99$460.99782,200
2017-05-19$450.01$450.01996,000
2017-05-18$457.33$457.331,107,600
2017-05-17$446.72$446.72749,400
2017-05-16$454.75$454.75943,100
2017-05-15$450.41$450.41772,100
2017-05-12$442.05$442.051,213,700
2017-05-11$440.43$440.43895,600
2017-05-10$431.57$431.57518,900
2017-05-09$427.18$427.18566,400
2017-05-08$423.38$423.38864,500
2017-05-05$429.00$429.001,060,600
2017-05-04$434.31$434.312,320,300
2017-05-03$407.03$407.031,265,500
2017-05-02$402.04$402.04884,400
2017-05-01$396.17$396.171,246,900
2017-04-28$388.49$388.492,179,400
2017-04-27$366.62$366.621,981,500
2017-04-26$371.39$371.39516,400
2017-04-25$372.32$372.32711,700
2017-04-24$371.93$371.93715,000
2017-04-21$370.12$370.12639,700
2017-04-20$376.40$376.40767,900
2017-04-19$370.96$370.96501,300
2017-04-18$366.06$366.06520,000
2017-04-17$373.45$373.45573,800
2017-04-13$370.37$370.37699,800
2017-04-12$366.33$366.33661,000
2017-04-11$367.07$367.07850,900
2017-04-10$373.26$373.26896,500
2017-04-07$380.55$380.55741,700
2017-04-06$379.48$379.481,119,600
2017-04-05$377.36$377.36772,200
2017-04-04$382.92$382.92681,100
2017-04-03$383.19$383.19994,400
2017-03-31$387.51$387.51570,300
2017-03-30$386.18$386.18966,300
2017-03-29$394.14$394.141,945,500
2017-03-28$382.55$382.551,651,300
2017-03-27$383.68$383.681,385,900
2017-03-24$373.00$373.00881,400
2017-03-23$365.02$365.02677,100
2017-03-22$369.14$369.14684,600
2017-03-21$370.98$370.981,224,600
2017-03-20$382.02$382.02576,900
2017-03-17$380.29$380.292,839,500
2017-03-16$392.59$392.59770,900
2017-03-15$397.80$397.80808,200
2017-03-14$391.10$391.10548,200
2017-03-13$388.88$388.88572,700
2017-03-10$388.23$388.23743,500
2017-03-09$390.14$390.141,101,000
2017-03-08$381.37$381.37832,700
2017-03-07$372.52$372.52890,400
2017-03-06$381.93$381.931,020,800
2017-03-03$378.66$378.66513,300
2017-03-02$375.86$375.86512,200
2017-03-01$379.05$379.05757,500
2017-02-28$373.50$373.50759,200
2017-02-27$373.05$373.05537,900
2017-02-24$361.01$361.01782,600
2017-02-23$360.96$360.961,118,900
2017-02-22$370.22$370.22569,200
2017-02-21$371.61$371.61722,600
2017-02-17$371.18$371.18775,500
2017-02-16$373.02$373.021,276,800
2017-02-15$384.00$384.00926,300
2017-02-14$376.52$376.52991,900
2017-02-13$375.66$375.661,539,100
2017-02-10$359.87$359.87713,600
2017-02-09$360.00$360.001,722,800
2017-02-08$353.25$353.25876,900
2017-02-07$357.69$357.69689,800
2017-02-06$362.00$362.00750,300
2017-02-03$358.26$358.26733,200
2017-02-02$360.56$360.56578,800
2017-02-01$364.17$364.171,033,000
2017-01-31$359.29$359.291,052,500
2017-01-30$344.50$344.50668,200
2017-01-27$346.50$346.50620,600
2017-01-26$340.75$340.751,312,600
2017-01-25$348.93$348.93934,500
2017-01-24$347.96$347.96905,400
2017-01-23$354.36$354.36899,400
2017-01-20$362.56$362.56782,000
2017-01-19$363.41$363.41586,200
2017-01-18$362.95$362.95474,000
2017-01-17$363.24$363.24879,200
2017-01-13$368.16$368.16943,800
2017-01-12$364.44$364.44663,700
2017-01-11$364.47$364.471,655,700
2017-01-10$373.00$373.001,787,200
2017-01-09$355.06$355.061,885,600
2017-01-06$358.68$358.683,254,600
2017-01-05$380.92$380.92628,000
2017-01-04$383.11$383.11781,500
2017-01-03$379.70$379.701,064,500