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 — 2000

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2000-12-29$35.27$35.27615,500
2000-12-28$37.25$37.25222,600
2000-12-27$37.50$37.50317,600
2000-12-26$38.25$38.25183,900
2000-12-22$38.94$38.94175,800
2000-12-21$39.06$39.06251,600
2000-12-20$36.31$36.31430,900
2000-12-19$39.88$39.87648,500
2000-12-18$40.00$40.00374,400
2000-12-15$34.81$34.81200,000
2000-12-14$35.06$35.06221,000
2000-12-13$35.63$35.63297,200
2000-12-12$35.00$35.00264,300
2000-12-11$36.06$36.06515,500
2000-12-08$32.88$32.88410,100
2000-12-07$29.50$29.50189,300
2000-12-06$29.50$29.50206,500
2000-12-05$29.00$29.00404,300
2000-12-04$27.56$27.56248,400
2000-12-01$27.81$27.81580,000
2000-11-30$24.38$24.37236,200
2000-11-29$24.69$24.69743,300
2000-11-28$27.19$27.19961,600
2000-11-27$26.13$26.13268,800
2000-11-24$23.06$23.0649,700
2000-11-22$20.31$20.31323,000
2000-11-21$20.88$20.88201,100
2000-11-20$20.75$20.75517,300
2000-11-17$24.94$24.9492,900
2000-11-16$24.69$24.6985,200
2000-11-15$26.00$26.0077,200
2000-11-14$24.69$24.6966,900
2000-11-13$23.63$23.62198,400
2000-11-10$25.63$25.62125,700
2000-11-09$25.44$25.44113,200
2000-11-08$25.63$25.62105,000
2000-11-07$25.44$25.44285,000
2000-11-06$25.69$25.6941,900
2000-11-03$26.06$26.06302,100
2000-11-02$26.56$26.56434,600
2000-11-01$26.00$26.00136,000
2000-10-31$26.75$26.75374,700
2000-10-30$21.38$21.37576,800
2000-10-27$24.13$24.13334,200
2000-10-26$26.19$26.19163,500
2000-10-25$25.63$25.62104,700
2000-10-24$25.69$25.69114,800
2000-10-23$26.38$26.37163,900
2000-10-20$25.75$25.75201,300
2000-10-19$27.69$27.69165,800
2000-10-18$26.38$26.37209,900
2000-10-17$25.88$25.87138,500
2000-10-16$27.88$27.8782,300
2000-10-13$25.94$25.9493,600
2000-10-12$26.06$26.06122,700
2000-10-11$27.13$27.12101,400
2000-10-10$28.88$28.8796,000
2000-10-09$29.06$29.06105,800
2000-10-06$29.63$29.63112,300
2000-10-05$28.44$28.44160,500
2000-10-04$29.56$29.56106,300
2000-10-03$29.75$29.75130,200
2000-10-02$29.56$29.56685,500
2000-09-29$32.63$32.63225,000
2000-09-28$32.00$32.00189,200
2000-09-27$31.00$31.00108,600
2000-09-26$30.88$30.8782,800
2000-09-25$33.13$33.1272,700
2000-09-22$33.13$33.12136,800
2000-09-21$31.75$31.7581,000
2000-09-20$33.38$33.37264,800
2000-09-19$32.75$32.7568,400
2000-09-18$32.06$32.06207,600
2000-09-15$36.00$36.00261,900
2000-09-14$30.94$30.94184,600
2000-09-13$31.94$31.9482,200
2000-09-12$32.13$32.1266,400
2000-09-11$31.13$31.12103,800
2000-09-08$32.38$32.3741,500
2000-09-07$32.94$32.9489,700
2000-09-06$32.63$32.6374,200
2000-09-05$32.75$32.75154,800
2000-09-01$34.13$34.13136,400
2000-08-31$35.44$35.44206,200
2000-08-30$33.75$33.75104,500
2000-08-29$32.94$32.9472,600
2000-08-28$31.81$31.8158,200
2000-08-25$33.00$33.0092,400
2000-08-24$33.00$33.00199,700
2000-08-23$31.13$31.12122,900
2000-08-22$31.94$31.94135,100
2000-08-21$32.38$32.37156,800
2000-08-18$33.13$33.1295,900
2000-08-17$33.50$33.50170,200
2000-08-16$33.13$33.12457,800
2000-08-15$33.50$33.501,766,600
2000-08-14$30.06$30.0669,000
2000-08-11$29.44$29.44102,900
2000-08-10$28.00$28.0065,400
2000-08-09$29.69$29.69121,100
2000-08-08$29.81$29.8171,500
2000-08-07$30.19$30.1988,000
2000-08-04$29.38$29.38154,200
2000-08-03$28.94$28.94140,900
2000-08-02$28.44$28.4448,400
2000-08-01$28.56$28.5698,200
2000-07-31$28.06$28.06114,600
2000-07-28$24.63$24.6294,600
2000-07-27$26.56$26.56125,200
2000-07-26$28.13$28.13148,700
2000-07-25$26.23$26.23123,800
2000-07-24$28.75$28.75101,700
2000-07-21$28.69$28.69314,700
2000-07-20$28.44$28.44187,200
2000-07-19$27.63$27.63137,800
2000-07-18$29.19$29.19233,500
2000-07-17$30.56$30.56245,800
2000-07-14$27.75$27.75122,800
2000-07-13$29.38$29.3891,900
2000-07-12$29.69$29.69284,500
2000-07-11$31.38$31.38312,800
2000-07-10$29.75$29.75275,400
2000-07-07$29.63$29.63346,500
2000-07-06$28.94$28.94157,500
2000-07-05$30.06$30.06135,200
2000-07-03$29.13$29.13136,800
2000-06-30$29.81$29.81580,700
2000-06-29$29.94$29.94222,000
2000-06-28$29.00$29.00134,000
2000-06-27$24.75$24.7559,400
2000-06-26$27.06$27.0677,300
2000-06-23$25.69$25.69113,500
2000-06-22$25.25$25.25132,600
2000-06-21$27.88$27.87113,600
2000-06-20$25.56$25.56112,700
2000-06-19$25.13$25.1368,400
2000-06-16$25.58$25.58106,900
2000-06-15$23.56$23.56100,800
2000-06-14$24.00$24.0081,200
2000-06-13$24.81$24.81207,300
2000-06-12$23.88$23.8787,900
2000-06-09$27.13$27.12125,700
2000-06-08$23.06$23.0691,400
2000-06-07$26.56$26.56104,200
2000-06-06$25.00$25.00205,700
2000-06-05$24.13$24.1370,400
2000-06-02$24.86$24.86300,800
2000-06-01$24.88$24.87385,300
2000-05-31$20.38$20.3868,000
2000-05-30$21.00$21.00131,200
2000-05-26$19.63$19.63128,900
2000-05-25$20.00$20.00323,800
2000-05-24$22.13$22.12165,000
2000-05-23$21.06$21.06105,700
2000-05-22$22.13$22.12120,900
2000-05-19$23.63$23.6253,200
2000-05-18$24.38$24.3742,300
2000-05-17$25.13$25.1357,500
2000-05-16$26.38$26.3779,800
2000-05-15$27.00$27.0047,100
2000-05-12$26.50$26.50153,400
2000-05-11$25.63$25.62131,200
2000-05-10$26.00$26.0046,300
2000-05-09$27.13$27.1260,400
2000-05-08$27.88$27.8756,900
2000-05-05$30.25$30.2596,200
2000-05-04$29.19$29.19101,800
2000-05-03$27.13$27.12145,000
2000-05-02$27.56$27.56106,600
2000-05-01$29.94$29.94370,500
2000-04-28$28.56$28.56213,300
2000-04-27$26.00$26.00218,100
2000-04-26$26.13$26.13176,500
2000-04-25$25.50$25.5091,200
2000-04-24$23.19$23.19207,200
2000-04-20$24.06$24.06287,500
2000-04-19$25.00$25.00319,200
2000-04-18$24.88$24.87443,600
2000-04-17$17.69$17.69279,600
2000-04-14$17.44$17.44434,800
2000-04-13$19.31$19.31248,400
2000-04-12$19.25$19.25257,500
2000-04-11$22.19$22.19523,000
2000-04-10$23.50$23.50182,600
2000-04-07$27.69$27.69368,900
2000-04-06$26.38$26.37876,700
2000-04-05$21.56$21.561,412,600
2000-04-04$22.25$22.25640,800
2000-04-03$28.50$28.50228,600
2000-03-31$29.56$29.56498,800
2000-03-30$28.69$28.691,786,400
2000-03-29$29.69$29.69410,500
2000-03-28$33.75$33.75412,800
2000-03-27$37.56$37.56404,100
2000-03-24$36.06$36.06772,100
2000-03-23$37.00$37.00800,100
2000-03-22$31.50$31.50403,500
2000-03-21$24.44$24.44538,200
2000-03-20$27.38$27.38246,000
2000-03-17$30.63$30.62212,400
2000-03-16$27.25$27.25351,300
2000-03-15$29.34$29.34376,400
2000-03-14$29.56$29.56622,300
2000-03-13$36.84$36.84252,900
2000-03-10$40.00$40.00562,700
2000-03-09$41.06$41.06553,300
2000-03-08$41.75$41.75749,700
2000-03-07$46.94$46.94353,300
2000-03-06$50.63$50.62514,400
2000-03-03$50.30$50.30762,000
2000-03-02$50.41$50.41466,700
2000-03-01$53.44$53.44647,100
2000-02-29$56.50$56.50904,800
2000-02-28$45.13$45.12825,100
2000-02-25$45.88$45.872,159,500
2000-02-24$36.75$36.752,311,400
2000-02-23$36.63$36.624,523,500
2000-02-22$20.88$20.88421,300
2000-02-18$21.75$21.75762,300
2000-02-17$18.13$18.12595,100
2000-02-16$15.25$15.25152,200
2000-02-15$15.00$15.00245,800
2000-02-14$16.00$16.00110,600
2000-02-11$15.75$15.75303,800
2000-02-10$14.56$14.56226,900
2000-02-09$13.63$13.62272,000
2000-02-08$14.63$14.62349,900
2000-02-07$13.06$13.06147,700
2000-02-04$13.13$13.12247,700
2000-02-03$12.88$12.88157,100
2000-02-02$13.50$13.50129,800
2000-02-01$12.63$12.62168,200
2000-01-31$12.31$12.31312,000
2000-01-28$12.56$12.56211,000
2000-01-27$13.38$13.38184,100
2000-01-26$14.06$14.0697,500
2000-01-25$14.56$14.5698,100
2000-01-24$14.59$14.59292,200
2000-01-21$14.63$14.62393,200
2000-01-20$15.25$15.25189,800
2000-01-19$16.25$16.25314,800
2000-01-18$17.00$17.00351,300
2000-01-14$14.50$14.50236,200
2000-01-13$14.19$14.19102,200
2000-01-12$14.13$14.12198,000
2000-01-11$14.09$14.09198,900
2000-01-10$14.50$14.50286,800
2000-01-07$13.00$13.00113,900
2000-01-06$11.63$11.6242,100
2000-01-05$11.50$11.5082,000
2000-01-04$12.00$12.0094,100
2000-01-03$12.31$12.31153,800