Regeneron Pharmaceuticals, Inc. (REGN) stock
REGNNasdaqPharmaceutical PreparationsFiscal year ends December 31
Financials through Q3 FY2026, quarter ended Sep 30, 2026Last filing: 10-Q on Oct 30, 2026Score 17/309% above fair value
$927.89+109.12 (+13.33%)
Close on Oct 30, 2026Market cap $95.53BP/E 20.5Yield –
Price history
Regeneron Pharmaceuticals share prices for every trading day, newest first. Adjusted for stock splits, not for dividends.
Close, Oct 30, 2026
$927.89
+13.33% on the day
52-week range
$591.52 – $935.35
-0.8% from the high
Change over 52 weeks
+41.9%
From $654.04 on Oct 30, 2025
Average volume
760,006
Shares a day, last 90 sessions
| Date | Open | High | Low | Close | Change | Volume |
|---|---|---|---|---|---|---|
| Oct 30, 2026 | $869.43 | $935.35 | $839.08 | $927.89 | +13.33% | 2,870,752 |
| Oct 29, 2026 | $826.14 | $828.19 | $811.63 | $818.77 | +0.68% | 789,303 |
| Oct 28, 2026 | $807.06 | $821.16 | $802.20 | $813.27 | -0.35% | 536,498 |
| Oct 27, 2026 | $807.67 | $816.14 | $804.05 | $816.10 | +1.04% | 726,151 |
| Oct 26, 2026 | $812.31 | $817.17 | $796.61 | $807.67 | +0.33% | 423,958 |
| Oct 23, 2026 | $819.09 | $819.09 | $801.22 | $805.02 | -1.72% | 527,739 |
| Oct 22, 2026 | $809.01 | $825.52 | $800.00 | $819.09 | +1.67% | 852,594 |
| Oct 21, 2026 | $806.74 | $813.86 | $800.24 | $805.67 | -0.22% | 581,051 |
| Oct 20, 2026 | $793.85 | $807.86 | $789.69 | $807.48 | +3.25% | 623,400 |
| Oct 19, 2026 | $792.59 | $800.00 | $780.83 | $782.04 | -1.10% | 489,580 |
| Oct 16, 2026 | $803.01 | $805.68 | $787.32 | $790.74 | -0.70% | 653,725 |
| Oct 15, 2026 | $802.33 | $809.49 | $792.58 | $796.34 | +2.31% | 798,909 |
| Oct 14, 2026 | $758.16 | $781.84 | $755.21 | $778.36 | +3.35% | 879,091 |
| Oct 13, 2026 | $762.49 | $765.60 | $743.57 | $753.12 | -1.27% | 629,557 |
| Oct 12, 2026 | $748.67 | $768.66 | $744.96 | $762.81 | +2.18% | 618,293 |
| Oct 9, 2026 | $737.20 | $751.27 | $732.83 | $746.54 | +0.94% | 466,026 |
| Oct 8, 2026 | $742.12 | $744.50 | $723.65 | $739.57 | -0.34% | 500,295 |
| Oct 7, 2026 | $738.05 | $753.68 | $734.18 | $742.12 | +0.46% | 626,433 |
| Oct 6, 2026 | $734.61 | $740.51 | $727.16 | $738.72 | +1.69% | 615,062 |
| Oct 5, 2026 | $734.37 | $736.42 | $722.02 | $726.47 | -1.19% | 695,028 |
| Oct 2, 2026 | $740.50 | $742.50 | $729.20 | $735.20 | +0.05% | 613,949 |
| Oct 1, 2026 | $766.53 | $777.43 | $726.02 | $734.81 | -3.09% | 1,042,865 |
| Sep 30, 2026 | $749.84 | $763.72 | $742.94 | $758.27 | +1.03% | 872,457 |
| Sep 29, 2026 | $745.85 | $752.47 | $741.83 | $750.51 | -0.23% | 804,336 |
| Sep 28, 2026 | $778.09 | $780.95 | $750.00 | $752.25 | -4.54% | 1,149,832 |
| Sep 25, 2026 | $803.87 | $803.87 | $784.13 | $788.04 | -1.00% | 592,145 |
| Sep 24, 2026 | $801.59 | $807.21 | $789.39 | $796.02 | -0.72% | 602,653 |
| Sep 23, 2026 | $805.23 | $813.53 | $790.02 | $801.82 | -0.26% | 721,110 |
| Sep 22, 2026 | $802.48 | $811.66 | $791.31 | $803.90 | +0.72% | 600,266 |
| Sep 21, 2026 | $786.03 | $801.44 | $779.96 | $798.17 | +1.70% | 704,526 |
| Sep 18, 2026 | $787.34 | $794.73 | $779.65 | $784.85 | -0.58% | 2,473,436 |
| Sep 17, 2026 | $781.18 | $789.99 | $774.78 | $789.45 | +1.92% | 702,816 |
| Sep 16, 2026 | $775.82 | $779.98 | $771.80 | $774.61 | +0.06% | 382,945 |
| Sep 15, 2026 | $788.53 | $788.58 | $769.57 | $774.11 | -2.47% | 540,837 |
| Sep 14, 2026 | $791.98 | $798.84 | $779.45 | $793.74 | +1.57% | 591,295 |
| Sep 11, 2026 | $800.00 | $800.22 | $780.81 | $781.49 | -1.48% | 443,986 |
| Sep 10, 2026 | $794.36 | $806.14 | $792.00 | $793.26 | -1.78% | 526,911 |
| Sep 9, 2026 | $803.83 | $808.63 | $796.73 | $807.65 | -0.33% | 621,458 |
| Sep 8, 2026 | $814.36 | $821.17 | $799.42 | $810.31 | -2.10% | 556,536 |
| Sep 4, 2026 | $840.06 | $841.54 | $825.83 | $827.72 | -1.87% | 561,170 |
| Sep 3, 2026 | $858.19 | $859.34 | $837.63 | $843.47 | -1.00% | 496,255 |
| Sep 2, 2026 | $826.24 | $854.49 | $825.77 | $852.03 | +3.42% | 749,453 |
| Sep 1, 2026 | $808.86 | $824.63 | $804.32 | $823.82 | +3.10% | 682,806 |
| Aug 31, 2026 | $782.44 | $802.78 | $779.08 | $799.08 | +0.62% | 894,268 |
| Aug 28, 2026 | $809.40 | $809.40 | $789.08 | $794.19 | -1.67% | 488,305 |
| Aug 27, 2026 | $806.18 | $817.62 | $804.27 | $807.71 | -0.87% | 766,990 |
| Aug 26, 2026 | $827.78 | $831.67 | $814.70 | $814.79 | -2.25% | 585,370 |
| Aug 25, 2026 | $829.22 | $839.94 | $823.44 | $833.56 | +0.61% | 505,424 |
| Aug 24, 2026 | $834.51 | $834.70 | $823.40 | $828.50 | -0.66% | 672,012 |
| Aug 21, 2026 | $835.74 | $847.00 | $826.64 | $834.04 | +0.90% | 786,921 |
| Aug 20, 2026 | $831.70 | $840.82 | $826.05 | $826.64 | -1.69% | 596,474 |
| Aug 19, 2026 | $817.17 | $844.92 | $815.38 | $840.84 | +3.78% | 750,445 |
| Aug 18, 2026 | $814.00 | $821.02 | $805.93 | $810.24 | +0.53% | 779,072 |
| Aug 17, 2026 | $801.76 | $813.18 | $795.73 | $805.93 | +0.30% | 541,306 |
| Aug 14, 2026 | $802.35 | $806.54 | $792.57 | $803.48 | -0.31% | 425,600 |
| Aug 13, 2026 | $802.21 | $815.80 | $794.49 | $805.97 | +1.00% | 709,747 |
| Aug 12, 2026 | $790.55 | $801.36 | $784.61 | $797.99 | +0.12% | 575,164 |
| Aug 11, 2026 | $808.80 | $813.63 | $796.66 | $797.00 | -1.37% | 939,190 |
| Aug 10, 2026 | $781.72 | $809.09 | $775.83 | $808.05 | +3.02% | 1,213,798 |
| Aug 7, 2026 | $774.47 | $785.99 | $767.17 | $784.36 | +1.59% | 837,598 |
| Aug 6, 2026 | $777.85 | $780.95 | $762.79 | $772.11 | +0.46% | 783,950 |
| Aug 5, 2026 | $767.98 | $782.59 | $763.31 | $768.58 | +1.04% | 532,482 |
| Aug 4, 2026 | $753.76 | $763.54 | $747.00 | $760.66 | +0.19% | 817,280 |
| Aug 3, 2026 | $769.54 | $772.75 | $756.44 | $759.24 | -0.44% | 842,730 |
| Jul 31, 2026 | $726.69 | $764.75 | $724.79 | $762.63 | +3.29% | 1,158,583 |
| Jul 30, 2026 | $701.90 | $740.00 | $694.98 | $738.34 | +6.17% | 1,460,963 |
| Jul 29, 2026 | $699.38 | $702.60 | $691.00 | $695.42 | +0.03% | 1,022,421 |
| Jul 28, 2026 | $676.93 | $696.74 | $676.46 | $695.18 | +4.20% | 900,408 |
| Jul 27, 2026 | $661.77 | $678.12 | $659.53 | $667.17 | +1.70% | 650,984 |
| Jul 24, 2026 | $658.29 | $667.50 | $654.05 | $656.01 | +0.63% | 708,392 |
| Jul 23, 2026 | $646.48 | $655.20 | $637.80 | $651.91 | +0.11% | 1,129,411 |
| Jul 22, 2026 | $676.43 | $676.80 | $648.90 | $651.18 | -3.56% | 872,170 |
| Jul 21, 2026 | $672.55 | $678.67 | $666.87 | $675.19 | +0.45% | 529,783 |
| Jul 20, 2026 | $674.72 | $681.74 | $669.88 | $672.15 | -0.67% | 624,791 |
| Jul 17, 2026 | $676.05 | $691.13 | $672.31 | $676.69 | -0.33% | 648,400 |
| Jul 16, 2026 | $666.28 | $680.29 | $661.38 | $678.94 | +2.18% | 730,245 |
| Jul 15, 2026 | $656.11 | $669.10 | $648.66 | $664.45 | +1.27% | 555,419 |
| Jul 14, 2026 | $658.00 | $663.10 | $653.31 | $656.12 | -1.05% | 477,991 |
| Jul 13, 2026 | $661.63 | $665.60 | $655.11 | $663.09 | -0.22% | 606,304 |
| Jul 10, 2026 | $670.06 | $676.66 | $658.50 | $664.52 | -0.51% | 581,778 |
| Jul 9, 2026 | $660.80 | $669.16 | $660.80 | $667.95 | +0.76% | 672,528 |
| Jul 8, 2026 | $669.11 | $670.35 | $661.43 | $662.88 | -1.97% | 746,834 |
| Jul 7, 2026 | $663.18 | $677.92 | $659.02 | $676.23 | +4.07% | 918,937 |
| Jul 6, 2026 | $657.96 | $657.96 | $637.72 | $649.81 | -0.68% | 714,338 |
| Jul 2, 2026 | $630.52 | $654.94 | $625.70 | $654.27 | +4.73% | 1,071,604 |
| Jul 1, 2026 | $629.90 | $632.85 | $623.89 | $624.72 | +0.19% | 1,170,657 |
| Jun 30, 2026 | $630.95 | $634.06 | $622.29 | $623.54 | -1.31% | 820,925 |
| Jun 29, 2026 | $635.99 | $638.30 | $626.86 | $631.81 | -0.17% | 734,528 |
| Jun 26, 2026 | $623.64 | $638.76 | $623.44 | $632.90 | +2.06% | 1,213,634 |
| Jun 25, 2026 | $623.16 | $634.31 | $619.70 | $620.14 | -0.53% | 696,862 |
| Jun 24, 2026 | $621.63 | $631.18 | $619.27 | $623.43 | +0.87% | 839,934 |
| Jun 23, 2026 | $607.92 | $621.79 | $607.92 | $618.03 | +0.90% | 1,279,871 |
| Jun 22, 2026 | $604.46 | $613.56 | $594.90 | $612.50 | +0.42% | 1,604,297 |
| Jun 18, 2026 | $612.07 | $616.24 | $598.19 | $609.94 | +0.33% | 2,609,258 |
| Jun 17, 2026 | $615.16 | $620.00 | $602.13 | $607.93 | -1.11% | 1,299,691 |
| Jun 16, 2026 | $615.18 | $617.60 | $608.21 | $614.73 | -0.04% | 1,007,463 |
| Jun 15, 2026 | $613.35 | $615.95 | $608.59 | $614.98 | +0.46% | 815,879 |
| Jun 12, 2026 | $613.11 | $616.55 | $605.01 | $612.14 | +0.11% | 717,780 |
| Jun 11, 2026 | $604.31 | $618.10 | $603.57 | $611.48 | +1.63% | 943,173 |
| Jun 10, 2026 | $619.07 | $619.26 | $601.22 | $601.65 | -2.36% | 816,110 |
| Jun 9, 2026 | $624.17 | $628.90 | $610.95 | $616.18 | +0.79% | 1,190,659 |
| Jun 8, 2026 | $638.04 | $638.95 | $608.98 | $611.34 | -3.79% | 1,259,234 |
| Jun 5, 2026 | $632.26 | $640.82 | $632.09 | $635.45 | +1.07% | 975,793 |
| Jun 4, 2026 | $628.07 | $633.89 | $621.11 | $628.73 | +1.58% | 974,745 |
| Jun 3, 2026 | $600.79 | $625.00 | $599.00 | $618.95 | +2.66% | 986,685 |
| Jun 2, 2026 | $596.52 | $604.63 | $591.52 | $602.92 | +0.38% | 1,067,006 |
| Jun 1, 2026 | $607.54 | $614.00 | $598.80 | $600.66 | -2.30% | 1,080,307 |
| May 29, 2026 | $620.11 | $624.47 | $609.77 | $614.78 | -1.08% | 2,187,707 |
| May 28, 2026 | $630.15 | $631.73 | $620.35 | $621.52 | -0.99% | 1,234,667 |
| May 27, 2026 | $634.80 | $638.06 | $625.00 | $627.74 | -1.08% | 1,913,613 |
| May 26, 2026 | $642.45 | $648.50 | $632.68 | $634.62 | -0.67% | 889,901 |
| May 22, 2026 | $639.24 | $644.12 | $632.72 | $638.88 | -0.58% | 995,023 |
| May 21, 2026 | $645.00 | $650.32 | $639.81 | $642.59 | -1.10% | 1,178,558 |
| May 20, 2026 | $634.32 | $651.00 | $633.60 | $649.76 | +3.09% | 1,165,758 |
| May 19, 2026 | $630.49 | $639.99 | $616.02 | $630.30 | +0.10% | 1,445,135 |
| May 18, 2026 | $615.93 | $633.00 | $610.60 | $629.68 | -9.82% | 2,996,891 |
| May 15, 2026 | $712.69 | $717.89 | $693.70 | $698.25 | -2.05% | 728,233 |
| May 14, 2026 | $719.00 | $722.51 | $710.06 | $712.87 | -0.97% | 767,205 |
| May 13, 2026 | $721.29 | $730.59 | $709.51 | $719.88 | -0.49% | 879,367 |
| May 12, 2026 | $716.39 | $725.60 | $710.02 | $723.41 | +1.49% | 824,575 |
| May 11, 2026 | $714.99 | $727.39 | $701.99 | $712.77 | -0.30% | 1,227,186 |
| May 8, 2026 | $709.29 | $717.99 | $708.36 | $714.89 | +0.82% | 589,041 |
| May 7, 2026 | $718.50 | $725.31 | $707.43 | $709.10 | -1.66% | 774,679 |
| May 6, 2026 | $703.33 | $726.16 | $702.50 | $721.05 | +2.67% | 739,914 |
| May 5, 2026 | $710.73 | $715.62 | $699.23 | $702.27 | -0.98% | 642,799 |
| May 4, 2026 | $702.56 | $711.55 | $699.75 | $709.21 | +1.11% | 554,271 |
| May 1, 2026 | $703.02 | $714.48 | $700.26 | $701.42 | -0.80% | 729,185 |
| Apr 30, 2026 | $693.08 | $708.44 | $688.95 | $707.06 | +3.02% | 1,096,636 |
| Apr 29, 2026 | $705.11 | $708.80 | $668.85 | $686.36 | -6.21% | 1,834,985 |
| Apr 28, 2026 | $751.37 | $754.00 | $730.90 | $731.77 | -1.70% | 569,174 |
| Apr 27, 2026 | $745.47 | $756.40 | $743.61 | $744.44 | -0.95% | 603,283 |
| Apr 24, 2026 | $760.00 | $761.96 | $736.71 | $751.57 | -1.89% | 809,546 |
| Apr 23, 2026 | $750.99 | $767.21 | $747.26 | $766.02 | +2.60% | 928,723 |
| Apr 22, 2026 | $751.48 | $755.78 | $740.47 | $746.58 | -0.10% | 901,955 |
| Apr 21, 2026 | $746.20 | $751.54 | $734.12 | $747.36 | -0.27% | 707,466 |
| Apr 20, 2026 | $750.00 | $755.59 | $744.00 | $749.41 | -0.15% | 493,842 |
| Apr 17, 2026 | $754.74 | $758.61 | $746.91 | $750.57 | +0.61% | 512,998 |
| Apr 16, 2026 | $749.56 | $756.00 | $742.69 | $746.00 | -1.05% | 505,374 |
| Apr 15, 2026 | $758.67 | $760.58 | $739.12 | $753.93 | -0.21% | 571,311 |
| Apr 14, 2026 | $744.97 | $757.68 | $743.71 | $755.51 | +1.21% | 637,779 |
| Apr 13, 2026 | $747.74 | $756.90 | $737.34 | $746.46 | -0.32% | 747,093 |
| Apr 10, 2026 | $771.48 | $771.48 | $739.09 | $748.87 | -2.47% | 751,457 |
| Apr 9, 2026 | $764.15 | $772.45 | $761.50 | $767.85 | -0.99% | 596,831 |
| Apr 8, 2026 | $765.26 | $775.63 | $755.99 | $775.53 | +2.01% | 580,427 |
| Apr 7, 2026 | $758.40 | $761.91 | $747.76 | $760.27 | -0.36% | 620,874 |
| Apr 6, 2026 | $766.83 | $768.80 | $758.49 | $763.04 | +0.16% | 460,419 |
| Apr 2, 2026 | $767.04 | $770.11 | $745.00 | $761.85 | -1.98% | 1,000,702 |
| Apr 1, 2026 | $775.00 | $781.21 | $769.97 | $777.25 | +0.60% | 627,412 |
| Mar 31, 2026 | $757.47 | $774.26 | $755.80 | $772.64 | +3.12% | 642,702 |
| Mar 30, 2026 | $743.83 | $757.68 | $741.47 | $749.29 | +1.57% | 630,455 |
| Mar 27, 2026 | $756.65 | $759.47 | $736.64 | $737.71 | -2.51% | 492,197 |
| Mar 26, 2026 | $749.40 | $761.73 | $747.77 | $756.73 | +0.97% | 488,587 |
| Mar 25, 2026 | $744.67 | $757.98 | $744.02 | $749.47 | +1.05% | 553,090 |
| Mar 24, 2026 | $728.51 | $743.17 | $727.96 | $741.69 | +0.70% | 507,979 |
| Mar 23, 2026 | $745.00 | $750.00 | $735.00 | $736.53 | +0.50% | 535,936 |
| Mar 20, 2026 | $738.17 | $744.85 | $728.64 | $732.87 | -0.62% | 1,359,993 |
| Mar 19, 2026 | $744.50 | $750.32 | $727.88 | $737.45 | -0.90% | 628,268 |
| Mar 18, 2026 | $751.22 | $757.60 | $734.56 | $744.12 | -1.97% | 672,598 |
| Mar 17, 2026 | $763.53 | $771.23 | $755.64 | $759.05 | +0.28% | 437,038 |
| Mar 16, 2026 | $750.00 | $763.30 | $747.01 | $756.91 | +1.49% | 396,216 |
| Mar 13, 2026 | $754.55 | $758.98 | $741.90 | $745.77 | -0.11% | 438,297 |
| Mar 12, 2026 | $764.06 | $766.00 | $744.00 | $746.61 | -3.62% | 630,421 |
| Mar 11, 2026 | $769.17 | $783.12 | $765.00 | $774.66 | +0.34% | 405,249 |
| Mar 10, 2026 | $781.67 | $788.69 | $771.34 | $772.03 | -1.22% | 473,422 |
| Mar 9, 2026 | $759.86 | $783.70 | $754.91 | $781.60 | +2.86% | 697,070 |
| Mar 6, 2026 | $755.01 | $762.40 | $746.66 | $759.86 | -0.66% | 561,908 |
| Mar 5, 2026 | $780.00 | $781.99 | $760.01 | $764.93 | -2.87% | 657,525 |
| Mar 4, 2026 | $767.05 | $791.60 | $764.24 | $787.50 | +2.72% | 641,608 |
| Mar 3, 2026 | $781.01 | $794.77 | $764.49 | $766.66 | -3.05% | 637,256 |
| Mar 2, 2026 | $771.10 | $793.16 | $769.63 | $790.81 | +1.17% | 793,325 |
| Feb 27, 2026 | $760.91 | $786.68 | $760.91 | $781.67 | +1.41% | 726,380 |
| Feb 26, 2026 | $784.28 | $784.50 | $753.79 | $770.79 | -1.72% | 772,714 |
| Feb 25, 2026 | $774.13 | $791.11 | $771.43 | $784.28 | +1.57% | 751,069 |
| Feb 24, 2026 | $780.47 | $792.67 | $768.75 | $772.19 | -1.89% | 628,679 |
| Feb 23, 2026 | $777.58 | $792.16 | $777.58 | $787.04 | +0.95% | 510,650 |
| Feb 20, 2026 | $775.00 | $781.46 | $770.00 | $779.67 | -0.35% | 615,295 |
| Feb 19, 2026 | $790.00 | $790.00 | $773.31 | $782.38 | -1.23% | 505,091 |
| Feb 18, 2026 | $793.53 | $797.00 | $786.79 | $792.16 | -0.17% | 675,897 |
| Feb 17, 2026 | $803.48 | $815.00 | $783.62 | $793.53 | -1.20% | 747,143 |
| Feb 13, 2026 | $788.92 | $806.18 | $785.00 | $803.17 | +2.49% | 974,845 |
| Feb 12, 2026 | $784.80 | $796.72 | $774.72 | $783.65 | +0.60% | 814,483 |
| Feb 11, 2026 | $750.85 | $781.42 | $745.07 | $778.97 | +3.19% | 1,123,719 |
| Feb 10, 2026 | $779.73 | $781.40 | $753.10 | $754.91 | -3.25% | 792,677 |
| Feb 9, 2026 | $783.17 | $790.00 | $775.50 | $780.28 | -0.67% | 586,816 |
| Feb 6, 2026 | $769.63 | $786.99 | $764.78 | $785.51 | +2.46% | 671,659 |
| Feb 5, 2026 | $777.83 | $790.00 | $760.00 | $766.63 | -1.09% | 976,458 |
| Feb 4, 2026 | $765.80 | $779.78 | $765.21 | $775.06 | +2.09% | 952,077 |
| Feb 3, 2026 | $745.53 | $773.72 | $742.74 | $759.18 | +0.55% | 768,694 |
| Feb 2, 2026 | $732.92 | $763.56 | $731.51 | $755.02 | +1.83% | 693,090 |
| Jan 30, 2026 | $753.96 | $774.37 | $735.61 | $741.45 | -1.07% | 1,317,891 |
| Jan 29, 2026 | $755.73 | $755.73 | $742.80 | $749.44 | -0.22% | 925,773 |
| Jan 28, 2026 | $765.15 | $766.99 | $747.57 | $751.13 | -2.61% | 827,944 |
| Jan 27, 2026 | $762.47 | $776.25 | $761.50 | $771.25 | +1.13% | 645,805 |
| Jan 26, 2026 | $750.09 | $767.30 | $750.09 | $762.65 | +1.21% | 934,312 |
| Jan 23, 2026 | $757.31 | $762.00 | $747.30 | $753.55 | -0.26% | 721,175 |
| Jan 22, 2026 | $750.34 | $765.00 | $747.37 | $755.51 | +0.82% | 765,689 |
| Jan 21, 2026 | $736.71 | $750.00 | $735.00 | $749.33 | +2.12% | 788,543 |
| Jan 20, 2026 | $729.40 | $737.87 | $718.38 | $733.78 | +0.10% | 789,339 |
| Jan 16, 2026 | $749.09 | $749.09 | $726.43 | $733.04 | -1.20% | 1,682,566 |
| Jan 15, 2026 | $754.85 | $756.50 | $737.00 | $741.92 | -1.62% | 865,627 |
| Jan 14, 2026 | $760.58 | $766.64 | $753.01 | $754.14 | -0.63% | 669,119 |
| Jan 13, 2026 | $765.16 | $765.99 | $743.94 | $758.91 | -1.18% | 946,732 |
| Jan 12, 2026 | $810.00 | $811.09 | $765.08 | $768.00 | -3.58% | 1,321,289 |
| Jan 9, 2026 | $802.97 | $821.11 | $790.88 | $796.55 | -0.56% | 711,556 |
| Jan 8, 2026 | $805.81 | $816.99 | $800.68 | $801.01 | -1.39% | 1,049,326 |
| Jan 7, 2026 | $786.18 | $814.10 | $780.10 | $812.27 | +4.60% | 1,264,733 |
| Jan 6, 2026 | $764.35 | $787.66 | $763.20 | $776.54 | +1.74% | 935,119 |
| Jan 5, 2026 | $769.72 | $771.99 | $753.20 | $763.23 | -1.68% | 835,909 |
| Jan 2, 2026 | $774.25 | $779.75 | $765.77 | $776.31 | +0.58% | 464,826 |
| Dec 31, 2025 | $772.00 | $775.00 | $769.17 | $771.87 | -0.27% | 355,156 |
| Dec 30, 2025 | $776.30 | $777.77 | $770.30 | $773.94 | -0.84% | 383,233 |
| Dec 29, 2025 | $780.56 | $785.05 | $774.60 | $780.50 | -0.57% | 545,104 |
| Dec 26, 2025 | $783.79 | $788.01 | $778.04 | $784.97 | +0.16% | 321,114 |
| Dec 24, 2025 | $787.99 | $792.77 | $783.61 | $783.71 | -0.19% | 267,162 |
| Dec 23, 2025 | $777.36 | $792.75 | $777.00 | $785.17 | +0.75% | 832,013 |
| Dec 22, 2025 | $765.84 | $783.60 | $765.09 | $779.36 | +1.48% | 818,007 |
| Dec 19, 2025 | $753.72 | $773.85 | $748.18 | $767.96 | +2.57% | 2,336,025 |
| Dec 18, 2025 | $747.54 | $752.84 | $739.23 | $748.71 | -0.14% | 1,057,594 |
| Dec 17, 2025 | $746.55 | $751.99 | $743.33 | $749.79 | +0.46% | 766,045 |
| Dec 16, 2025 | $752.57 | $757.35 | $734.72 | $746.36 | -0.83% | 713,243 |
| Dec 15, 2025 | $748.85 | $756.67 | $746.38 | $752.62 | +1.53% | 932,936 |
| Dec 12, 2025 | $741.59 | $746.05 | $734.38 | $741.29 | -0.74% | 804,841 |
| Dec 11, 2025 | $726.08 | $753.61 | $726.08 | $746.80 | +2.84% | 1,153,882 |
| Dec 10, 2025 | $695.06 | $728.00 | $692.50 | $726.21 | +4.86% | 1,316,662 |
| Dec 9, 2025 | $705.11 | $711.15 | $691.86 | $692.58 | -1.52% | 604,535 |
| Dec 8, 2025 | $723.69 | $724.13 | $701.75 | $703.26 | -2.10% | 1,005,953 |
| Dec 5, 2025 | $723.00 | $736.15 | $717.26 | $718.36 | -0.61% | 798,452 |
| Dec 4, 2025 | $732.45 | $735.00 | $721.22 | $722.80 | -0.12% | 1,067,133 |
| Dec 3, 2025 | $730.36 | $744.23 | $720.07 | $723.67 | -2.47% | 1,238,676 |
| Dec 2, 2025 | $742.12 | $747.00 | $731.00 | $742.00 | -1.08% | 924,677 |
| Dec 1, 2025 | $775.60 | $779.92 | $748.15 | $750.11 | -3.86% | 992,389 |
| Nov 28, 2025 | $784.70 | $788.98 | $779.50 | $780.19 | -0.56% | 510,377 |
| Nov 26, 2025 | $785.72 | $790.98 | $777.00 | $784.61 | -0.34% | 871,691 |
| Nov 25, 2025 | $764.88 | $790.57 | $760.01 | $787.32 | +3.40% | 1,200,573 |
| Nov 24, 2025 | $759.05 | $773.13 | $756.64 | $761.45 | +0.73% | 1,554,940 |
| Nov 21, 2025 | $736.01 | $764.09 | $735.74 | $755.90 | +2.56% | 1,427,897 |
| Nov 20, 2025 | $725.00 | $753.51 | $720.02 | $737.00 | +4.87% | 2,297,145 |
| Nov 19, 2025 | $727.81 | $727.81 | $702.63 | $702.75 | -3.11% | 1,383,591 |
| Nov 18, 2025 | $702.51 | $727.97 | $699.22 | $725.34 | +2.99% | 1,368,882 |
| Nov 17, 2025 | $693.34 | $711.88 | $692.29 | $704.31 | +1.56% | 1,133,105 |
| Nov 14, 2025 | $697.19 | $699.27 | $685.95 | $693.50 | -0.21% | 907,089 |
| Nov 13, 2025 | $683.00 | $713.58 | $679.93 | $694.99 | +1.95% | 1,505,339 |
| Nov 12, 2025 | $678.89 | $690.78 | $672.67 | $681.72 | +1.06% | 1,208,307 |
| Nov 11, 2025 | $651.48 | $676.33 | $651.38 | $674.55 | +3.03% | 977,533 |
| Nov 10, 2025 | $656.00 | $665.99 | $653.19 | $654.74 | -0.42% | 824,903 |
| Nov 7, 2025 | $650.35 | $658.21 | $640.99 | $657.53 | +1.65% | 782,810 |
| Nov 6, 2025 | $640.83 | $657.00 | $640.83 | $646.87 | +0.42% | 916,868 |
| Nov 5, 2025 | $631.10 | $646.89 | $628.00 | $644.19 | +2.58% | 724,423 |
| Nov 4, 2025 | $643.78 | $646.22 | $625.14 | $628.00 | -2.22% | 1,031,189 |
| Nov 3, 2025 | $657.46 | $657.46 | $627.50 | $642.25 | -1.47% | 810,538 |
| Oct 31, 2025 | $649.45 | $660.00 | $645.00 | $651.80 | -0.34% | 798,001 |
| Oct 30, 2025 | $645.56 | $664.00 | $643.92 | $654.04 | +0.17% | 1,120,676 |
| Oct 29, 2025 | $650.41 | $659.98 | $637.66 | $652.91 | -0.24% | 1,751,496 |
| Oct 28, 2025 | $612.02 | $655.70 | $605.03 | $654.48 | +11.82% | 2,126,839 |
| Oct 27, 2025 | $580.50 | $586.15 | $575.93 | $585.31 | +1.27% | 1,246,122 |
| Oct 24, 2025 | $579.65 | $582.70 | $576.20 | $577.95 | +0.39% | 875,474 |
| Oct 23, 2025 | $579.68 | $584.00 | $572.75 | $575.69 | -1.55% | 779,106 |
| Oct 22, 2025 | $580.21 | $588.71 | $578.60 | $584.74 | +0.93% | 691,262 |
| Oct 21, 2025 | $574.60 | $582.41 | $572.82 | $579.34 | +0.45% | 651,765 |
| Oct 20, 2025 | $579.41 | $582.65 | $574.23 | $576.77 | – | 639,173 |
Seasonality
REGN return in each calendar month over the last 10 years, including dividends. The current month runs to the latest close.
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Average | 0.4% | 2.7% | 3.2% | -4.8% | -0.2% | 4.1% | 3.9% | 5.5% | -3.6% | 0.9% | 3.1% | -0.3% |
| Months up | 4 of 10 | 8 of 10 | 6 of 10 | 3 of 10 | 5 of 10 | 8 of 10 | 8 of 10 | 7 of 10 | 1 of 10 | 5 of 10 | 5 of 9 | 4 of 9 |
| 2026 | -3.9% | 5.6% | -1.2% | -8.5% | -12.9% | 1.4% | 22.3% | 4.9% | -5.1% | 22.4% | ||
| 2025 | -5.5% | 4.0% | -9.2% | -5.6% | -18.0% | 7.1% | 3.9% | 6.6% | -3.2% | 15.9% | 19.8% | -1.1% |
| 2024 | 7.3% | 2.5% | -0.4% | -7.5% | 10.0% | 7.2% | 2.7% | 9.8% | -11.3% | -20.3% | -10.5% | -5.1% |
| 2023 | 5.1% | 0.3% | 8.1% | -2.4% | -8.3% | -2.3% | 3.3% | 11.4% | -0.4% | -5.2% | 5.6% | 6.6% |
| 2022 | -3.6% | 1.6% | 12.9% | -5.6% | 0.9% | -11.1% | -1.6% | -0.1% | 18.6% | 8.7% | 0.4% | -4.0% |
| 2021 | 4.3% | -10.6% | 5.0% | 1.7% | 4.4% | 11.2% | 2.9% | 17.2% | -10.1% | 5.7% | -0.5% | -0.8% |
| 2020 | -10.0% | 31.6% | 9.8% | 7.7% | 16.5% | 1.8% | 1.4% | -1.9% | -9.7% | -2.9% | -5.1% | -6.4% |
| 2019 | 14.9% | 0.3% | -4.7% | -16.4% | -12.1% | 3.7% | -2.6% | -4.8% | -4.4% | 10.4% | 20.5% | 1.8% |
| 2018 | -2.5% | -12.6% | 7.5% | -11.8% | -1.1% | 14.9% | 6.7% | 10.5% | -0.7% | -16.0% | 7.8% | 2.1% |
| 2017 | -2.1% | 4.0% | 3.8% | 0.3% | 18.2% | 7.0% | 0.1% | 1.1% | -10.0% | -10.0% | -10.1% | 3.9% |