NASDAQ:IRWD | Historical Stock Price | IRONWOOD 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
2010-02-03 to 2026-09-04
Data captured

Stock Price Chart

Blue: Split-adjusted close · Orange: Cumulative dividend-reinvested close

$0.54$1.09$2.19$4.40$8.85$17.792010-02-032026-08-27

Logarithmic scale. Both lines share the same starting value for the selected range.

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Historical Stock Price — 2015

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2015-12-31$9.71$9.71659,207
2015-12-30$9.92$9.92925,708
2015-12-29$10.10$10.10854,068
2015-12-28$9.67$9.67662,909
2015-12-24$9.72$9.72270,083
2015-12-23$9.78$9.78771,205
2015-12-22$9.75$9.75787,801
2015-12-21$9.70$9.70909,112
2015-12-18$9.85$9.855,083,813
2015-12-17$9.50$9.502,048,188
2015-12-16$9.38$9.382,098,336
2015-12-15$9.21$9.211,939,653
2015-12-14$9.20$9.201,526,410
2015-12-11$9.10$9.101,258,357
2015-12-10$9.46$9.461,044,034
2015-12-09$9.43$9.43848,337
2015-12-08$9.76$9.761,488,679
2015-12-07$9.72$9.72851,203
2015-12-04$10.03$10.03735,265
2015-12-03$9.77$9.77901,351
2015-12-02$10.12$10.12722,489
2015-12-01$10.37$10.371,529,395
2015-11-30$10.22$10.221,334,653
2015-11-27$10.27$10.27328,589
2015-11-25$10.27$10.27751,623
2015-11-24$10.26$10.26690,610
2015-11-23$10.30$10.30817,293
2015-11-20$10.33$10.331,214,179
2015-11-19$10.29$10.29916,276
2015-11-18$10.42$10.421,391,965
2015-11-17$10.18$10.181,079,854
2015-11-16$10.06$10.061,634,467
2015-11-13$9.94$9.941,560,200
2015-11-12$9.58$9.581,207,970
2015-11-11$9.59$9.591,413,338
2015-11-10$9.61$9.61891,679
2015-11-09$9.51$9.511,245,342
2015-11-06$9.61$9.612,147,887
2015-11-05$9.33$9.33953,170
2015-11-04$9.46$9.462,059,053
2015-11-03$9.63$9.631,992,308
2015-11-02$9.58$9.582,783,930
2015-10-30$9.51$9.511,461,814
2015-10-29$9.38$9.382,304,898
2015-10-28$9.86$9.861,993,025
2015-10-27$9.55$9.55983,378
2015-10-26$9.26$9.261,124,867
2015-10-23$9.38$9.381,941,922
2015-10-22$9.69$9.691,803,537
2015-10-21$9.63$9.631,404,622
2015-10-20$9.41$9.411,210,000
2015-10-19$9.58$9.581,474,590
2015-10-16$9.66$9.661,375,249
2015-10-15$9.60$9.601,878,998
2015-10-14$9.08$9.081,367,966
2015-10-13$8.98$8.981,937,504
2015-10-12$9.34$9.341,064,690
2015-10-09$9.51$9.511,895,117
2015-10-08$9.31$9.311,708,972
2015-10-07$9.36$9.361,791,716
2015-10-06$9.42$9.423,596,806
2015-10-05$9.31$9.311,887,236
2015-10-02$9.27$9.271,503,724
2015-10-01$8.76$8.762,327,345
2015-09-30$8.73$8.731,765,807
2015-09-29$8.23$8.232,127,589
2015-09-28$8.37$8.372,154,334
2015-09-25$8.64$8.642,371,762
2015-09-24$9.05$9.051,155,195
2015-09-23$9.16$9.161,025,049
2015-09-22$9.23$9.232,008,666
2015-09-21$9.39$9.392,690,201
2015-09-18$9.77$9.772,108,485
2015-09-17$9.92$9.921,672,197
2015-09-16$9.59$9.591,037,586
2015-09-15$9.61$9.61762,130
2015-09-14$9.72$9.72844,874
2015-09-11$9.73$9.731,652,496
2015-09-10$9.31$9.31997,945
2015-09-09$9.27$9.271,376,921
2015-09-08$9.52$9.521,623,243
2015-09-04$9.25$9.252,105,619
2015-09-03$8.94$8.941,295,490
2015-09-02$9.30$9.301,536,917
2015-09-01$9.21$9.212,213,079
2015-08-31$9.21$9.211,173,463
2015-08-28$9.44$9.441,819,417
2015-08-27$9.25$9.251,817,865
2015-08-26$9.21$9.211,854,998
2015-08-25$8.87$8.872,229,556
2015-08-24$8.99$8.992,585,488
2015-08-21$9.17$9.172,448,416
2015-08-20$9.16$9.161,694,167
2015-08-19$9.56$9.561,159,374
2015-08-18$9.72$9.721,191,254
2015-08-17$9.74$9.741,911,594
2015-08-14$9.66$9.661,763,538
2015-08-13$9.67$9.672,179,886
2015-08-12$9.51$9.511,522,589
2015-08-11$9.45$9.451,574,408
2015-08-10$9.38$9.381,373,458
2015-08-07$9.17$9.172,277,913
2015-08-06$9.11$9.114,879,520
2015-08-05$8.98$8.983,421,646
2015-08-04$8.89$8.891,630,526
2015-08-03$8.83$8.833,923,723
2015-07-31$8.75$8.751,483,067
2015-07-30$8.77$8.771,652,257
2015-07-29$8.71$8.713,984,139
2015-07-28$8.82$8.822,286,629
2015-07-27$8.75$8.752,319,823
2015-07-24$8.97$8.972,704,888
2015-07-23$9.56$9.561,491,545
2015-07-22$9.50$9.502,256,421
2015-07-21$9.46$9.462,075,291
2015-07-20$9.36$9.362,055,829
2015-07-17$9.46$9.461,883,296
2015-07-16$9.63$9.631,324,504
2015-07-15$9.56$9.561,282,714
2015-07-14$9.66$9.662,207,945
2015-07-13$9.56$9.561,940,369
2015-07-10$9.58$9.581,624,795
2015-07-09$9.63$9.631,784,552
2015-07-08$9.93$9.932,831,810
2015-07-07$10.22$10.221,862,521
2015-07-06$10.18$10.181,265,998
2015-07-02$10.10$10.101,653,929
2015-07-01$10.11$10.111,918,639
2015-06-30$10.10$10.102,100,127
2015-06-29$9.71$9.711,543,364
2015-06-26$10.08$10.081,441,397
2015-06-25$10.17$10.172,258,929
2015-06-24$10.07$10.071,392,204
2015-06-23$10.14$10.141,257,760
2015-06-22$10.33$10.331,851,655
2015-06-19$10.04$10.042,228,004
2015-06-18$10.05$10.051,973,324
2015-06-17$9.89$9.895,060,291
2015-06-16$10.22$10.221,254,058
2015-06-15$10.10$10.101,759,478
2015-06-12$10.17$10.171,681,271
2015-06-11$10.43$10.433,280,993
2015-06-10$10.41$10.4111,330,941
2015-06-09$10.28$10.285,076,649
2015-06-08$11.59$11.59885,709
2015-06-05$11.80$11.80670,550
2015-06-04$11.55$11.55580,762
2015-06-03$11.84$11.84621,955
2015-06-02$11.52$11.52769,175
2015-06-01$11.42$11.42939,917
2015-05-29$11.82$11.821,071,615
2015-05-28$11.57$11.57530,017
2015-05-27$11.67$11.67567,508
2015-05-26$11.51$11.51625,537
2015-05-22$11.58$11.58434,019
2015-05-21$11.54$11.54723,206
2015-05-20$11.76$11.761,492,739
2015-05-19$11.82$11.821,080,570
2015-05-18$11.98$11.98713,176
2015-05-15$11.96$11.961,021,228
2015-05-14$11.96$11.96921,052
2015-05-13$11.50$11.50911,022
2015-05-12$11.46$11.461,143,255
2015-05-11$11.78$11.78680,341
2015-05-08$12.00$12.001,181,582
2015-05-07$11.39$11.391,635,422
2015-05-06$11.62$11.623,038,611
2015-05-05$11.30$11.301,291,430
2015-05-04$11.62$11.621,118,181
2015-05-01$11.66$11.66871,620
2015-04-30$11.44$11.441,609,631
2015-04-29$11.93$11.931,177,403
2015-04-28$12.09$12.091,213,701
2015-04-27$12.23$12.231,521,156
2015-04-24$12.65$12.65790,070
2015-04-23$12.96$12.96586,135
2015-04-22$12.62$12.62696,221
2015-04-21$12.78$12.78643,924
2015-04-20$12.81$12.811,093,346
2015-04-17$12.61$12.611,293,221
2015-04-16$13.05$13.05466,496
2015-04-15$13.07$13.07664,222
2015-04-14$12.76$12.761,715,897
2015-04-13$12.88$12.88957,707
2015-04-10$13.08$13.08880,575
2015-04-09$12.86$12.861,390,652
2015-04-08$13.08$13.081,207,253
2015-04-07$12.55$12.551,538,708
2015-04-06$12.81$12.811,759,001
2015-04-02$13.22$13.22935,977
2015-04-01$13.35$13.351,046,541
2015-03-31$13.40$13.401,391,726
2015-03-30$13.84$13.841,535,126
2015-03-27$13.12$13.122,526,026
2015-03-26$12.93$12.931,241,879
2015-03-25$12.65$12.651,736,792
2015-03-24$13.49$13.491,009,527
2015-03-23$13.72$13.721,126,778
2015-03-20$13.89$13.893,838,471
2015-03-19$13.74$13.742,081,978
2015-03-18$13.12$13.12931,678
2015-03-17$13.22$13.221,072,570
2015-03-16$13.08$13.081,496,201
2015-03-13$12.62$12.621,110,062
2015-03-12$13.05$13.05878,187
2015-03-11$13.12$13.12601,298
2015-03-10$12.80$12.801,050,839
2015-03-09$13.07$13.07509,957
2015-03-06$13.24$13.24819,681
2015-03-05$13.21$13.211,202,119
2015-03-04$13.02$13.021,071,734
2015-03-03$13.05$13.05541,957
2015-03-02$13.29$13.29735,265
2015-02-27$12.94$12.94827,920
2015-02-26$13.43$13.43573,359
2015-02-25$13.35$13.351,080,570
2015-02-24$13.02$13.021,450,352
2015-02-23$13.58$13.581,655,362
2015-02-20$13.11$13.11903,261
2015-02-19$13.00$13.001,047,496
2015-02-18$13.08$13.081,045,347
2015-02-17$12.91$12.911,168,687
2015-02-13$12.69$12.692,096,306
2015-02-12$13.40$13.401,555,782
2015-02-11$13.10$13.101,144,449
2015-02-10$13.44$13.44840,457
2015-02-09$13.39$13.391,181,702
2015-02-06$13.39$13.391,464,322
2015-02-05$12.97$12.971,132,628
2015-02-04$12.70$12.701,771,896
2015-02-03$12.77$12.77820,994
2015-02-02$12.63$12.631,142,897
2015-01-30$13.05$13.051,036,511
2015-01-29$13.43$13.431,099,316
2015-01-28$13.22$13.221,252,625
2015-01-27$13.96$13.961,240,208
2015-01-26$13.95$13.951,120,927
2015-01-23$13.38$13.381,554,588
2015-01-22$13.40$13.401,160,329
2015-01-21$12.65$12.65784,697
2015-01-20$13.32$13.32843,442
2015-01-16$13.17$13.17748,757
2015-01-15$12.62$12.62741,474
2015-01-14$13.02$13.02823,263
2015-01-13$12.83$12.831,471,008
2015-01-12$12.83$12.83853,710
2015-01-09$12.81$12.81498,017
2015-01-08$12.77$12.77848,218
2015-01-07$12.91$12.91872,456
2015-01-06$12.19$12.191,239,969
2015-01-05$12.35$12.351,701,928
2015-01-02$12.96$12.961,151,374