NASDAQ:REGN | Stock Price History | 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.

Historical Stock Price

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2026-09-04$838.7817,486
2026-09-03$857.1827,438
2026-09-02$827.6241,973
2026-09-01$804.3324,583
2026-08-31$784.5828,369
2026-08-28$807.0426,913
2026-08-27$807.71$815.33766,800$804.4834,678
2026-08-26$814.79$822.48585,300$832.3616,513
2026-08-25$833.56$841.43505,400$830.6417,388
2026-08-24$828.50$836.32672,000$831.9823,760
2026-08-21$834.04$841.91786,800$831.8220,461
2026-08-20$826.64$834.44596,400$837.5017,311
2026-08-19$840.84$848.77750,400$821.3529,506
2026-08-18$810.24$817.89779,000$810.7724,070
2026-08-17$805.93$812.59541,300$802.0025,064
2026-08-14$803.48$810.12425,600$803.4914,750
2026-08-13$805.97$812.63709,700$799.7437,819
2026-08-12$797.99$804.58575,100$793.3527,957
2026-08-11$797.00$803.58939,100$808.0032,520
2026-08-10$808.05$814.721,213,700$779.8444,889
2026-08-07$784.36$790.84837,600$774.6724,203
2026-08-06$772.11$778.49783,900$777.1029,468
2026-08-05$768.58$774.93532,400$769.6536,834
2026-08-04$760.66$766.94817,300$754.7244,707
2026-08-03$759.24$765.51842,600$771.9141,568
2026-07-31$762.63$768.931,158,300$725.1456,986
2026-07-30$738.34$744.441,460,700$697.4881,935
2026-07-29$695.42$701.161,022,100$698.1159,936
2026-07-28$695.18$700.92900,200$678.0060,336
2026-07-27$667.17$672.68650,800$664.4555,406
2026-07-24$656.01$661.43708,400$655.9778,269
2026-07-23$651.91$657.291,129,400$647.75133,482
2026-07-22$651.18$656.56872,200$675.0087,086
2026-07-21$675.19$680.77529,400$678.2435,257
2026-07-20$672.15$677.70624,800$675.8344,990
2026-07-17$676.69$682.28648,300
2026-07-16$678.94$684.55730,100
2026-07-15$664.45$669.94555,400
2026-07-14$656.12$661.54478,000
2026-07-13$663.09$668.57606,300
2026-07-10$664.52$670.01581,700
2026-07-09$667.95$673.47672,500
2026-07-08$662.88$668.35746,800
2026-07-07$676.23$681.82918,700
2026-07-06$649.81$655.18714,300
2026-07-02$654.27$659.671,071,600
2026-07-01$624.72$629.881,170,600
2026-06-30$623.54$628.69820,900
2026-06-29$631.81$637.03734,400
2026-06-26$632.90$638.131,213,600
2026-06-25$620.14$625.26696,800
2026-06-24$623.43$628.58839,900
2026-06-23$618.03$623.131,279,700
2026-06-22$612.50$617.561,604,300
2026-06-18$609.94$614.982,609,100
2026-06-17$607.93$612.951,299,500
2026-06-16$614.73$619.811,007,500
2026-06-15$614.98$620.06815,900
2026-06-12$612.14$617.20717,700
2026-06-11$611.48$616.53943,100
2026-06-10$601.65$606.62816,100
2026-06-09$616.18$621.271,190,600
2026-06-08$611.34$616.391,259,200
2026-06-05$635.45$640.70975,800
2026-06-04$628.73$633.92974,700
2026-06-03$618.95$624.06986,700
2026-06-02$602.92$607.901,066,700
2026-06-01$600.66$605.621,079,900
2026-05-29$614.78$619.862,187,500
2026-05-28$621.52$626.651,234,400
2026-05-27$627.74$632.921,913,500
2026-05-26$634.62$639.86889,800
2026-05-22$638.88$644.16994,900
2026-05-21$642.59$647.901,178,500
2026-05-20$649.76$655.131,165,600
2026-05-19$630.30$634.561,445,100
2026-05-18$629.68$633.932,996,600
2026-05-15$698.25$702.97728,000
2026-05-14$712.87$717.69767,200
2026-05-13$719.88$724.74879,300
2026-05-12$723.41$728.30824,300
2026-05-11$712.77$717.591,227,200
2026-05-08$714.89$719.72589,000
2026-05-07$709.10$713.89774,600
2026-05-06$721.05$725.92739,900
2026-05-05$702.27$707.01642,700
2026-05-04$709.21$714.00554,100
2026-05-01$701.42$706.16729,100
2026-04-30$707.06$711.841,096,500
2026-04-29$686.36$691.001,835,000
2026-04-28$731.77$736.71569,000
2026-04-27$744.44$749.47603,200
2026-04-24$751.57$756.65809,500
2026-04-23$766.02$771.20928,700
2026-04-22$746.58$751.62901,900
2026-04-21$747.36$752.41707,400
2026-04-20$749.41$754.47493,800
2026-04-17$750.57$755.64513,000
2026-04-16$746.00$751.04505,000
2026-04-15$753.93$759.02571,100