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.

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Historical Stock Price — 2025

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2025-12-31$771.87$776.15354,800
2025-12-30$773.94$778.23383,200
2025-12-29$780.50$784.83545,100
2025-12-26$784.97$789.32321,000
2025-12-24$783.71$788.06267,200
2025-12-23$785.17$789.52832,000
2025-12-22$779.36$783.68818,000
2025-12-19$767.96$772.222,335,900
2025-12-18$748.71$752.861,057,600
2025-12-17$749.79$753.95765,900
2025-12-16$746.36$750.50713,200
2025-12-15$752.62$756.79932,800
2025-12-12$741.29$745.40804,800
2025-12-11$746.80$750.941,153,900
2025-12-10$726.21$730.241,316,500
2025-12-09$692.58$696.42604,400
2025-12-08$703.26$707.161,005,900
2025-12-05$718.36$722.34798,300
2025-12-04$722.80$726.811,067,100
2025-12-03$723.67$727.681,238,500
2025-12-02$742.00$746.12924,600
2025-12-01$750.11$754.27992,000
2025-11-28$780.19$784.52510,400
2025-11-26$784.61$788.96871,700
2025-11-25$787.32$791.691,200,400
2025-11-24$761.45$765.671,554,900
2025-11-21$755.90$760.091,427,700
2025-11-20$737.00$741.092,296,800
2025-11-19$702.75$705.761,383,600
2025-11-18$725.34$728.451,368,700
2025-11-17$704.31$707.331,132,900
2025-11-14$693.50$696.47907,000
2025-11-13$694.99$697.971,505,300
2025-11-12$681.72$684.641,208,300
2025-11-11$674.55$677.44977,200
2025-11-10$654.74$657.55824,800
2025-11-07$657.53$660.35782,800
2025-11-06$646.87$649.64916,600
2025-11-05$644.19$646.95724,300
2025-11-04$628.00$630.691,030,900
2025-11-03$642.25$645.00810,300
2025-10-31$651.80$654.59797,900
2025-10-30$654.04$656.841,120,700
2025-10-29$652.91$655.711,751,500
2025-10-28$654.48$657.292,126,800
2025-10-27$585.31$587.821,246,100
2025-10-24$577.95$580.43875,400
2025-10-23$575.69$578.16778,800
2025-10-22$584.74$587.25691,200
2025-10-21$579.34$581.82651,600
2025-10-20$576.77$579.24639,100
2025-10-17$578.05$580.53745,700
2025-10-16$569.17$571.61842,200
2025-10-15$576.42$578.89927,700
2025-10-14$572.60$575.051,010,600
2025-10-13$557.73$560.121,426,400
2025-10-10$564.63$567.051,495,000
2025-10-09$569.90$572.34853,300
2025-10-08$563.86$566.281,415,800
2025-10-07$583.24$585.74656,400
2025-10-06$585.48$587.991,072,400
2025-10-03$600.00$602.571,154,500
2025-10-02$600.00$602.571,096,500
2025-10-01$599.94$602.512,083,200
2025-09-30$562.27$564.681,662,500
2025-09-29$560.75$563.15922,400
2025-09-26$563.90$566.32838,600
2025-09-25$555.51$557.891,394,200
2025-09-24$576.98$579.45777,300
2025-09-23$567.89$570.321,362,200
2025-09-22$595.68$598.23904,900
2025-09-19$591.99$594.532,178,000
2025-09-18$598.71$601.281,267,000
2025-09-17$585.50$588.01921,500
2025-09-16$575.06$577.53707,900
2025-09-15$572.59$575.04995,700
2025-09-12$560.00$562.40602,600
2025-09-11$568.20$570.64868,200
2025-09-10$555.83$558.21874,700
2025-09-09$556.53$558.92873,200
2025-09-08$558.44$560.831,250,400
2025-09-05$573.38$575.84960,400
2025-09-04$567.22$569.651,124,300
2025-09-03$563.80$566.221,118,500
2025-09-02$577.90$580.381,020,200
2025-08-29$580.70$583.19574,300
2025-08-28$579.61$582.09616,600
2025-08-27$586.96$589.48584,100
2025-08-26$587.65$590.171,614,400
2025-08-25$572.38$574.83880,900
2025-08-22$589.48$592.011,439,400
2025-08-21$598.16$600.721,010,000
2025-08-20$591.01$593.541,298,500
2025-08-19$571.78$574.23854,600
2025-08-18$573.91$576.37769,400
2025-08-15$580.41$582.011,122,200
2025-08-14$565.97$567.53976,300
2025-08-13$561.55$563.101,096,100
2025-08-12$556.55$558.09766,000
2025-08-11$545.94$547.451,103,900
2025-08-08$563.00$564.561,024,300
2025-08-07$559.80$561.35811,200
2025-08-06$555.13$556.66865,000
2025-08-05$569.90$571.48993,300
2025-08-04$571.54$573.121,362,500
2025-08-01$558.87$560.411,656,400
2025-07-31$545.46$546.971,413,900
2025-07-30$554.58$556.11564,900
2025-07-29$558.15$559.69814,900
2025-07-28$558.63$560.17588,400
2025-07-25$563.10$564.66755,800
2025-07-24$564.64$566.201,037,600
2025-07-23$572.39$573.97891,100
2025-07-22$560.93$562.48976,700
2025-07-21$545.53$547.04709,100
2025-07-18$542.52$544.021,307,800
2025-07-17$550.00$551.52989,200
2025-07-16$547.93$549.441,089,900
2025-07-15$547.96$549.47998,400
2025-07-14$570.59$572.17717,100
2025-07-11$567.74$569.31844,600
2025-07-10$559.76$561.31827,300
2025-07-09$552.58$554.11843,800
2025-07-08$547.75$549.26847,100
2025-07-07$538.11$539.60960,300
2025-07-03$547.36$548.87456,400
2025-07-02$547.74$549.25818,100
2025-07-01$534.91$536.391,200,700
2025-06-30$525.00$526.451,013,200
2025-06-27$521.00$522.441,607,800
2025-06-26$521.00$522.44965,500
2025-06-25$520.29$521.73639,500
2025-06-24$522.27$523.71970,600
2025-06-23$511.92$513.341,076,000
2025-06-20$509.72$511.132,259,300
2025-06-18$513.58$515.00841,000
2025-06-17$508.86$510.27890,400
2025-06-16$522.68$524.121,325,800
2025-06-13$529.24$530.70951,500
2025-06-12$521.84$523.28873,200
2025-06-11$518.60$520.03963,100
2025-06-10$523.53$524.981,175,000
2025-06-09$517.60$519.031,983,100
2025-06-06$493.22$494.581,497,900
2025-06-05$483.07$484.411,791,100
2025-06-04$484.93$486.271,870,700
2025-06-03$487.86$489.212,141,600
2025-06-02$490.81$492.172,944,300
2025-05-30$490.28$491.646,313,100
2025-05-29$605.39$607.06756,700
2025-05-28$591.85$593.491,008,300
2025-05-27$603.26$604.93876,100
2025-05-23$588.34$589.97656,300
2025-05-22$596.85$598.50867,200
2025-05-21$604.62$606.291,089,300
2025-05-20$614.79$616.491,102,100
2025-05-19$596.54$597.31666,300
2025-05-16$594.32$595.08936,900
2025-05-15$584.99$585.741,301,800
2025-05-14$571.36$572.091,664,500
2025-05-13$574.16$574.901,149,900
2025-05-12$575.63$576.371,898,300
2025-05-09$527.78$528.461,499,000
2025-05-08$547.67$548.372,709,200
2025-05-07$560.93$561.651,140,500
2025-05-06$558.52$559.241,510,900
2025-05-05$603.58$604.361,124,300
2025-05-02$605.61$606.391,606,400
2025-05-01$590.00$590.761,190,500
2025-04-30$598.76$599.531,679,400
2025-04-29$568.91$569.642,660,300
2025-04-28$610.86$611.641,175,200
2025-04-25$602.64$603.41964,400
2025-04-24$599.76$600.531,317,000
2025-04-23$587.85$588.61791,900
2025-04-22$585.49$586.241,036,800
2025-04-21$561.49$562.21745,600
2025-04-17$563.16$563.88827,700
2025-04-16$549.28$549.99875,700
2025-04-15$557.91$558.63838,500
2025-04-14$571.06$571.79946,300
2025-04-11$554.18$554.891,170,900
2025-04-10$546.39$547.091,357,800
2025-04-09$576.72$577.461,871,500
2025-04-08$556.81$557.531,159,700
2025-04-07$572.78$573.521,687,400
2025-04-04$573.45$574.191,547,700
2025-04-03$610.64$611.421,047,500
2025-04-02$625.60$626.40902,600
2025-04-01$617.00$617.791,059,700
2025-03-31$634.23$635.041,066,300
2025-03-28$637.36$638.18805,900
2025-03-27$635.83$636.65811,500
2025-03-26$640.14$640.961,251,900
2025-03-25$634.14$634.95852,900
2025-03-24$661.00$661.85962,400
2025-03-21$658.48$659.331,869,100
2025-03-20$662.62$663.47663,000
2025-03-19$672.36$673.22675,700
2025-03-18$664.96$665.81608,100
2025-03-17$678.42$679.29942,900
2025-03-14$666.87$667.731,306,000
2025-03-13$680.61$681.48863,700
2025-03-12$689.50$690.39808,300
2025-03-11$718.16$719.081,108,100
2025-03-10$744.83$745.791,631,300
2025-03-07$707.51$708.421,083,900
2025-03-06$698.44$699.34866,400
2025-03-05$687.15$688.03828,700
2025-03-04$675.49$676.361,197,600
2025-03-03$684.87$685.75708,600
2025-02-28$698.74$699.641,028,800
2025-02-27$702.78$703.68568,500
2025-02-26$706.94$707.85712,900
2025-02-25$723.47$724.401,049,900
2025-02-24$713.25$714.17896,400
2025-02-21$700.33$701.23727,400
2025-02-20$696.02$696.91627,500
2025-02-19$685.66$685.66638,300
2025-02-18$680.00$680.00826,000
2025-02-14$673.60$673.60623,000
2025-02-13$674.27$674.27604,700
2025-02-12$663.86$663.861,292,200
2025-02-11$665.46$665.461,270,800
2025-02-10$690.36$690.36918,500
2025-02-07$710.00$710.00885,700
2025-02-06$722.07$722.071,116,600
2025-02-05$716.72$716.721,436,100
2025-02-04$697.05$697.051,654,500
2025-02-03$666.85$666.851,009,200
2025-01-31$672.98$672.98943,800
2025-01-30$683.08$683.08771,800
2025-01-29$687.27$687.27522,800
2025-01-28$686.33$686.33640,100
2025-01-27$684.71$684.711,051,400
2025-01-24$675.79$675.791,021,800
2025-01-23$694.64$694.641,145,000
2025-01-22$680.03$680.03945,100
2025-01-21$687.80$687.801,145,300
2025-01-17$681.58$681.581,111,900
2025-01-16$693.23$693.23853,900
2025-01-15$703.43$703.43880,400
2025-01-14$690.87$690.87791,700
2025-01-13$716.90$716.901,406,000
2025-01-10$696.88$696.881,117,200
2025-01-08$733.59$733.59758,800
2025-01-07$730.30$730.30802,500
2025-01-06$716.26$716.26820,300
2025-01-03$718.15$718.15558,000
2025-01-02$715.19$715.19479,000