Regeneron Pharmaceuticals, Inc. (REGN)

NASDAQ: REGN · Real-Time Price · USD

762.63

+24.29 (3.29%)

At close: Jul 31, 2026, 4:00 PM EDT

761.45

-1.18 (-0.16%)

After-hours: Jul 31, 2026, 7:49 PM EDT

Regeneron Pharmaceuticals Stock Price History

Historical Data

Date	Open	High	Low	Close	Adj. Close	Change	Volume
Jul 31, 2026	726.69	764.75	724.79	762.63	762.63	3.29%	1,157,758
Jul 30, 2026	701.90	740.00	694.98	738.34	738.34	6.17%	1,460,842
Jul 29, 2026	699.38	702.60	691.00	695.42	695.42	0.03%	1,022,421
Jul 28, 2026	676.93	696.74	676.46	695.18	695.18	4.20%	900,408
Jul 27, 2026	661.77	678.12	659.53	667.17	667.17	1.70%	650,984
Jul 24, 2026	658.29	667.50	654.05	656.01	656.01	0.63%	708,392
Jul 23, 2026	646.48	655.20	637.80	651.91	651.91	0.11%	1,129,411
Jul 22, 2026	676.43	676.80	648.90	651.18	651.18	-3.56%	872,170
Jul 21, 2026	672.55	678.67	666.87	675.19	675.19	0.45%	529,783
Jul 20, 2026	674.72	681.74	669.88	672.15	672.15	-0.67%	624,791
Jul 17, 2026	676.05	691.13	672.31	676.69	676.69	-0.33%	648,400
Jul 16, 2026	666.28	680.29	661.38	678.94	678.94	2.18%	730,245
Jul 15, 2026	656.11	669.10	648.66	664.45	664.45	1.27%	555,419
Jul 14, 2026	658.00	663.11	653.31	656.12	656.12	-1.05%	477,991
Jul 13, 2026	661.63	665.60	655.11	663.09	663.09	-0.22%	606,304
Jul 10, 2026	670.06	676.66	658.50	664.52	664.52	-0.51%	581,778
Jul 9, 2026	660.80	669.16	660.80	667.95	667.95	0.76%	672,528
Jul 8, 2026	669.11	670.35	661.43	662.88	662.88	-1.97%	746,834
Jul 7, 2026	663.18	677.92	659.02	676.23	676.23	4.07%	918,937
Jul 6, 2026	657.96	657.96	637.72	649.81	649.81	-0.68%	714,338
Jul 2, 2026	630.52	654.94	625.70	654.27	654.27	4.73%	1,071,604
Jul 1, 2026	629.90	632.85	623.89	624.72	624.72	0.19%	1,170,657
Jun 30, 2026	630.95	634.06	622.29	623.54	623.54	-1.31%	820,925
Jun 29, 2026	635.99	638.30	626.86	631.81	631.81	-0.17%	734,528
Jun 26, 2026	623.64	638.76	623.44	632.90	632.90	2.06%	1,213,634
Jun 25, 2026	623.16	634.31	619.70	620.14	620.14	-0.53%	696,862
Jun 24, 2026	621.63	631.18	619.27	623.43	623.43	0.87%	839,934
Jun 23, 2026	607.92	621.79	607.92	618.03	618.03	0.90%	1,279,871
Jun 22, 2026	604.46	613.56	594.90	612.50	612.50	0.42%	1,604,297
Jun 18, 2026	612.07	616.24	598.19	609.94	609.94	0.33%	2,609,258
Jun 17, 2026	615.16	620.00	602.13	607.93	607.93	-1.11%	1,299,691
Jun 16, 2026	615.18	617.60	608.21	614.73	614.73	-0.04%	1,007,463
Jun 15, 2026	613.35	615.95	608.59	614.98	614.98	0.46%	815,879
Jun 12, 2026	613.11	616.55	605.01	612.14	612.14	0.11%	717,780
Jun 11, 2026	604.31	618.10	603.57	611.48	611.48	1.63%	943,173
Jun 10, 2026	619.07	619.26	601.22	601.65	601.65	-2.36%	816,110
Jun 9, 2026	624.17	628.90	610.95	616.18	616.18	0.79%	1,190,659
Jun 8, 2026	638.04	638.95	608.98	611.34	611.34	-3.79%	1,259,234
Jun 5, 2026	632.26	640.82	632.09	635.45	635.45	1.07%	975,793
Jun 4, 2026	628.07	633.89	621.11	628.73	628.73	1.58%	974,745
Jun 3, 2026	600.79	625.00	599.00	618.95	618.95	2.66%	986,685
Jun 2, 2026	596.52	604.63	591.52	602.92	602.92	0.38%	1,067,006
Jun 1, 2026	607.54	614.00	598.80	600.66	600.66	-2.30%	1,080,307
May 29, 2026	620.11	624.47	609.77	614.78	614.78	-1.08%	2,187,707
May 28, 2026	630.15	631.73	620.35	621.52	621.52	-0.99%	1,234,667
May 27, 2026	634.80	638.06	625.00	627.74	627.74	-1.08%	1,913,613
May 26, 2026	642.45	648.50	632.68	634.62	634.62	-0.67%	889,901
May 22, 2026	639.24	644.12	632.72	638.88	638.88	-0.58%	995,023
May 21, 2026	645.00	650.32	639.81	642.59	642.59	-1.10%	1,178,558
May 20, 2026	634.32	651.00	633.60	649.76	649.76	3.24%	1,165,758