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Regeneron Pharmaceuticals, Inc. (REGN)
NASDAQ: REGN · Real-Time Price · USD
731.77
-12.67 (-1.70%)
At close: Apr 28, 2026, 4:00 PM EDT
733.22
+1.45 (0.20%)
After-hours: Apr 28, 2026, 7:57 PM EDT

Regeneron Pharmaceuticals Stock Price History

Historical Data

DateOpenHighLowCloseAdj. CloseChangeVolume
Apr 28, 2026751.37754.00730.90731.77731.77-1.70%569,024
Apr 27, 2026745.47756.40743.61744.44744.44-0.95%603,283
Apr 24, 2026760.00761.96736.71751.57751.57-1.89%809,546
Apr 23, 2026750.99767.21747.26766.02766.022.60%928,723
Apr 22, 2026751.48755.78740.47746.58746.58-0.10%901,955
Apr 21, 2026746.20751.54734.12747.36747.36-0.27%707,466
Apr 20, 2026750.00755.59744.00749.41749.41-0.15%493,842
Apr 17, 2026754.74758.61746.91750.57750.570.61%512,998
Apr 16, 2026749.56756.00742.69746.00746.00-1.05%505,374
Apr 15, 2026758.67760.58739.12753.93753.93-0.21%571,311
Apr 14, 2026744.97757.68743.71755.51755.511.21%637,779
Apr 13, 2026747.74756.90737.34746.46746.46-0.32%747,093
Apr 10, 2026771.48771.48739.09748.87748.87-2.47%751,457
Apr 9, 2026764.15772.45761.50767.85767.85-0.99%596,831
Apr 8, 2026765.26775.63755.99775.53775.532.01%580,427
Apr 7, 2026758.40761.91747.76760.27760.27-0.36%620,874
Apr 6, 2026766.83768.80758.49763.04763.040.16%460,419
Apr 2, 2026767.04770.11745.00761.85761.85-1.98%1,000,702
Apr 1, 2026775.00781.21769.97777.25777.250.60%627,412
Mar 31, 2026757.47774.26755.80772.64772.643.12%642,702
Mar 30, 2026743.83757.68741.47749.29749.291.57%630,455
Mar 27, 2026756.65759.47736.64737.71737.71-2.51%492,197
Mar 26, 2026749.40761.73747.77756.73756.730.97%488,587
Mar 25, 2026744.67757.98744.02749.47749.471.05%553,090
Mar 24, 2026728.51743.17727.96741.69741.690.70%507,979
Mar 23, 2026745.00750.00735.00736.53736.530.50%535,936
Mar 20, 2026738.17744.85728.64732.87732.87-0.62%1,359,993
Mar 19, 2026744.50750.32727.88737.45737.45-0.90%628,268
Mar 18, 2026751.22757.60734.56744.12744.12-1.97%672,598
Mar 17, 2026763.53771.23755.64759.05759.050.28%437,038
Mar 16, 2026750.00763.30747.01756.91756.911.49%396,216
Mar 13, 2026754.55758.98741.90745.77745.77-0.11%438,297
Mar 12, 2026764.06766.00744.00746.61746.61-3.62%630,421
Mar 11, 2026769.17783.12765.00774.66774.660.34%405,249
Mar 10, 2026781.67788.69771.34772.03772.03-1.22%473,422
Mar 9, 2026759.86783.70754.91781.60781.602.86%697,070
Mar 6, 2026755.01762.40746.66759.86759.86-0.66%561,908
Mar 5, 2026780.00781.99760.01764.93764.93-2.87%657,525
Mar 4, 2026767.05791.60764.24787.50787.502.72%641,608
Mar 3, 2026781.01794.77764.49766.66766.66-3.05%637,256
Mar 2, 2026771.10793.16769.63790.81790.811.17%793,325
Feb 27, 2026760.91786.68760.91781.67781.671.41%726,380
Feb 26, 2026784.28784.50753.79770.79770.79-1.72%772,714
Feb 25, 2026774.13791.11771.43784.28784.281.57%751,069
Feb 24, 2026780.47792.67768.75772.19772.19-1.89%628,679
Feb 23, 2026777.58792.16777.58787.04787.040.95%510,650
Feb 20, 2026775.00781.46770.00779.67779.67-0.35%615,295
Feb 19, 2026790.00790.00773.31782.38781.44-1.23%505,091
Feb 18, 2026793.53797.00786.79792.16791.21-0.17%675,897
Feb 17, 2026803.48815.00783.62793.53792.58-1.20%747,143
Feb 13, 2026788.92806.18785.00803.17802.212.49%974,845
Feb 12, 2026784.80796.72774.72783.65782.710.60%814,483
Feb 11, 2026750.85781.42745.07778.97778.033.19%1,123,719
Feb 10, 2026779.73781.40753.10754.91754.00-3.25%792,677
Feb 9, 2026783.17790.00775.50780.28779.34-0.67%586,816
Feb 6, 2026769.63786.99764.78785.51784.572.46%671,659
Feb 5, 2026777.83790.00760.00766.63765.71-1.09%976,458
Feb 4, 2026765.80779.78765.21775.06774.132.09%952,077
Feb 3, 2026745.53773.72742.74759.18758.270.55%768,694
Feb 2, 2026732.92763.56731.51755.02754.111.83%693,090
Jan 30, 2026753.96774.37735.61741.45740.56-1.07%1,317,891
Jan 29, 2026755.73755.73742.80749.44748.54-0.22%925,773
Jan 28, 2026765.15766.99747.57751.13750.23-2.61%827,944
Jan 27, 2026762.47776.25761.50771.25770.321.13%645,805
Jan 26, 2026750.09767.30750.09762.65761.731.21%934,312
Jan 23, 2026757.31762.00747.30753.55752.64-0.26%721,175
Jan 22, 2026750.34765.00747.37755.51754.600.82%765,689
Jan 21, 2026736.71750.00735.00749.33748.432.12%788,543
Jan 20, 2026729.40737.87718.38733.78732.900.10%789,339
Jan 16, 2026749.09749.09726.43733.04732.16-1.20%1,682,566
Jan 15, 2026754.85756.50737.00741.92741.03-1.62%865,627
Jan 14, 2026760.58766.64753.01754.14753.23-0.63%669,119
Jan 13, 2026765.16765.99743.94758.91758.00-1.18%946,732
Jan 12, 2026810.00811.09765.08768.00767.08-3.58%1,321,289
Jan 9, 2026802.97821.11790.88796.55795.59-0.56%711,556
Jan 8, 2026805.81816.99800.68801.01800.05-1.39%1,049,326
Jan 7, 2026786.18814.10780.10812.27811.294.60%1,264,733
Jan 6, 2026764.35787.66763.20776.54775.611.74%935,119
Jan 5, 2026769.72771.99753.20763.23762.31-1.68%835,909
Jan 2, 2026774.25779.75765.77776.31775.380.58%464,826
Dec 31, 2025772.00775.00769.17771.87770.94-0.27%355,156
Dec 30, 2025776.30777.77770.30773.94773.01-0.84%383,233
Dec 29, 2025780.56785.05774.60780.50779.56-0.57%545,104
Dec 26, 2025783.79788.01778.04784.97784.030.16%321,114
Dec 24, 2025787.99792.77783.61783.71782.77-0.19%267,162
Dec 23, 2025777.36792.75777.00785.17784.230.75%832,013
Dec 22, 2025765.84783.60765.09779.36778.421.48%818,007
Dec 19, 2025753.72773.85748.18767.96767.042.57%2,336,025
Dec 18, 2025747.54752.84739.23748.71747.81-0.14%1,057,594
Dec 17, 2025746.55751.99743.33749.79748.890.46%766,045
Dec 16, 2025752.57757.35734.72746.36745.46-0.83%713,243
Dec 15, 2025748.85756.67746.38752.62751.721.53%932,936
Dec 12, 2025741.59746.05734.38741.29740.40-0.74%804,841
Dec 11, 2025726.08753.61726.08746.80745.902.84%1,153,882
Dec 10, 2025695.06728.00692.50726.21725.344.86%1,316,662
Dec 9, 2025705.11711.15691.86692.58691.75-1.52%604,535
Dec 8, 2025723.69724.13701.75703.26702.42-2.10%1,005,953
Dec 5, 2025723.00736.15717.27718.36717.50-0.61%798,452
Dec 4, 2025732.45735.00721.22722.80721.93-0.12%1,067,133
Dec 3, 2025730.36744.23720.07723.67722.80-2.47%1,238,676