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 — 2018

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2018-12-31$8.68$8.681,252,864
2018-12-28$8.30$8.301,075,913
2018-12-27$8.10$8.101,004,632
2018-12-26$8.39$8.391,141,225
2018-12-24$7.80$7.80587,806
2018-12-21$7.80$7.803,069,535
2018-12-20$8.43$8.431,561,513
2018-12-19$8.52$8.521,687,003
2018-12-18$9.17$9.171,343,369
2018-12-17$9.57$9.571,438,173
2018-12-14$9.84$9.841,489,276
2018-12-13$9.44$9.443,347,260
2018-12-12$9.66$9.664,496,962
2018-12-11$10.18$10.181,076,630
2018-12-10$10.30$10.302,294,390
2018-12-07$10.31$10.311,368,443
2018-12-06$10.61$10.611,901,803
2018-12-04$10.65$10.652,518,146
2018-12-03$11.56$11.562,221,437
2018-11-30$11.57$11.571,089,167
2018-11-29$11.41$11.411,618,348
2018-11-28$11.62$11.621,422,293
2018-11-27$10.95$10.951,554,469
2018-11-26$11.18$11.181,505,276
2018-11-23$10.90$10.901,239,491
2018-11-21$10.42$10.42968,931
2018-11-20$9.99$9.991,152,568
2018-11-19$10.02$10.022,514,564
2018-11-16$10.03$10.032,047,949
2018-11-15$9.76$9.761,062,063
2018-11-14$9.31$9.311,597,930
2018-11-13$9.58$9.581,749,329
2018-11-12$9.44$9.441,568,797
2018-11-09$9.95$9.952,002,935
2018-11-08$10.12$10.123,391,796
2018-11-07$9.98$9.983,325,290
2018-11-06$10.70$10.702,905,480
2018-11-05$11.83$11.831,282,237
2018-11-02$11.81$11.812,406,865
2018-11-01$11.34$11.344,787,701
2018-10-31$10.97$10.976,071,968
2018-10-30$11.04$11.046,054,893
2018-10-29$13.48$13.48744,220
2018-10-26$13.76$13.761,020,989
2018-10-25$13.73$13.731,133,464
2018-10-24$13.00$13.001,603,423
2018-10-23$13.84$13.84916,634
2018-10-22$14.14$14.141,075,794
2018-10-19$13.99$13.991,449,635
2018-10-18$14.36$14.361,065,048
2018-10-17$14.61$14.611,167,732
2018-10-16$14.75$14.752,104,067
2018-10-15$13.63$13.631,059,436
2018-10-12$13.99$13.99928,216
2018-10-11$13.67$13.671,517,932
2018-10-10$14.30$14.301,758,165
2018-10-09$14.69$14.691,524,499
2018-10-08$14.99$14.991,288,804
2018-10-05$14.86$14.861,375,249
2018-10-04$14.91$14.912,214,034
2018-10-03$16.13$16.131,177,403
2018-10-02$15.65$15.651,099,793
2018-10-01$15.28$15.281,013,587
2018-09-28$15.46$15.461,050,720
2018-09-27$15.33$15.33630,432
2018-09-26$15.26$15.26662,909
2018-09-25$15.17$15.17993,647
2018-09-24$14.82$14.82816,457
2018-09-21$14.38$14.382,062,754
2018-09-20$14.49$14.49490,615
2018-09-19$14.32$14.32544,345
2018-09-18$14.48$14.48756,638
2018-09-17$14.31$14.31990,423
2018-09-14$15.30$15.30731,206
2018-09-13$15.23$15.231,523,544
2018-09-12$14.51$14.51729,295
2018-09-11$14.61$14.61604,880
2018-09-10$15.04$15.04775,742
2018-09-07$15.18$15.18711,266
2018-09-06$15.54$15.54778,966
2018-09-05$15.90$15.901,670,884
2018-09-04$16.03$16.031,021,109
2018-08-31$16.11$16.111,286,416
2018-08-30$16.06$16.06671,147
2018-08-29$15.78$15.78651,566
2018-08-28$15.63$15.63557,717
2018-08-27$15.49$15.49599,866
2018-08-24$15.56$15.56765,235
2018-08-23$15.39$15.39682,729
2018-08-22$15.56$15.56745,534
2018-08-21$15.39$15.39798,786
2018-08-20$15.29$15.29648,700
2018-08-17$15.31$15.31708,639
2018-08-16$15.29$15.29834,725
2018-08-15$15.57$15.571,267,312
2018-08-14$15.79$15.79884,396
2018-08-13$15.89$15.891,099,674
2018-08-10$15.76$15.76839,979
2018-08-09$16.09$16.09720,818
2018-08-08$15.89$15.89751,026
2018-08-07$15.89$15.891,162,717
2018-08-06$15.39$15.392,321,852
2018-08-03$16.07$16.07822,785
2018-08-02$16.27$16.27745,534
2018-08-01$16.01$16.011,207,850
2018-07-31$16.15$16.151,152,688
2018-07-30$15.77$15.771,825,626
2018-07-27$15.48$15.481,879,595
2018-07-26$15.90$15.90838,188
2018-07-25$16.05$16.051,277,699
2018-07-24$16.41$16.41779,204
2018-07-23$16.73$16.731,068,869
2018-07-20$16.77$16.77525,241
2018-07-19$16.80$16.80846,785
2018-07-18$16.67$16.672,744,528
2018-07-17$17.65$17.65700,400
2018-07-16$17.44$17.441,663,600
2018-07-13$17.62$17.621,043,437
2018-07-12$17.38$17.381,105,883
2018-07-11$16.67$16.671,253,700
2018-07-10$16.63$16.63837,472
2018-07-09$16.94$16.942,490,923
2018-07-06$16.80$16.801,543,961
2018-07-05$16.61$16.611,077,585
2018-07-03$16.25$16.25629,716
2018-07-02$16.34$16.341,058,481
2018-06-29$16.01$16.011,367,727
2018-06-28$15.87$15.871,196,627
2018-06-27$15.67$15.672,346,688
2018-06-26$16.05$16.051,153,643
2018-06-25$15.62$15.621,499,306
2018-06-22$16.20$16.203,085,057
2018-06-21$15.59$15.591,175,732
2018-06-20$15.58$15.581,248,566
2018-06-19$15.47$15.471,363,906
2018-06-18$15.52$15.521,111,017
2018-06-15$15.44$15.443,289,351
2018-06-14$15.56$15.561,619,780
2018-06-13$15.14$15.142,363,045
2018-06-12$14.82$14.821,267,073
2018-06-11$14.88$14.881,227,671
2018-06-08$14.66$14.661,312,684
2018-06-07$14.51$14.511,952,190
2018-06-06$14.96$14.961,131,673
2018-06-05$14.61$14.611,145,524
2018-06-04$14.87$14.871,486,291
2018-06-01$15.39$15.391,153,523
2018-05-31$15.56$15.564,842,386
2018-05-30$14.58$14.581,645,213
2018-05-29$14.04$14.041,572,140
2018-05-25$14.46$14.46737,653
2018-05-24$14.72$14.721,052,392
2018-05-23$14.57$14.57949,588
2018-05-22$14.64$14.641,462,053
2018-05-21$14.85$14.851,218,955
2018-05-18$15.14$15.14974,304
2018-05-17$15.14$15.141,659,063
2018-05-16$15.53$15.531,029,467
2018-05-15$15.34$15.34983,259
2018-05-14$15.51$15.511,222,417
2018-05-11$15.53$15.531,340,384
2018-05-10$14.87$14.87972,155
2018-05-09$14.70$14.701,904,549
2018-05-08$15.39$15.391,438,292
2018-05-07$15.05$15.051,535,126
2018-05-04$15.57$15.571,344,205
2018-05-03$15.37$15.371,768,792
2018-05-02$15.84$15.844,897,072
2018-05-01$15.65$15.654,890,505
2018-04-30$15.18$15.182,772,468
2018-04-27$15.64$15.642,944,404
2018-04-26$14.61$14.611,337,638
2018-04-25$14.20$14.201,232,566
2018-04-24$14.19$14.191,547,066
2018-04-23$14.65$14.651,156,389
2018-04-20$14.47$14.471,503,604
2018-04-19$14.72$14.722,655,098
2018-04-18$14.74$14.741,674,943
2018-04-17$14.77$14.77896,813
2018-04-16$14.27$14.272,382,269
2018-04-13$14.34$14.341,111,256
2018-04-12$14.44$14.441,838,282
2018-04-11$14.69$14.693,152,757
2018-04-10$13.64$13.643,441,824
2018-04-09$13.29$13.294,266,878
2018-04-06$12.03$12.03599,746
2018-04-05$12.39$12.391,213,223
2018-04-04$12.46$12.461,146,479
2018-04-03$12.16$12.161,564,379
2018-04-02$11.83$11.832,451,879
2018-03-29$12.92$12.921,125,703
2018-03-28$12.73$12.73991,975
2018-03-27$12.72$12.721,256,804
2018-03-26$13.01$13.011,123,076
2018-03-23$12.62$12.621,393,159
2018-03-22$12.73$12.731,811,776
2018-03-21$12.78$12.781,125,584
2018-03-20$12.53$12.53973,229
2018-03-19$12.63$12.631,080,809
2018-03-16$12.86$12.861,958,399
2018-03-15$12.92$12.92767,503
2018-03-14$13.02$13.02867,919
2018-03-13$12.95$12.951,523,783
2018-03-12$13.07$13.071,500,261
2018-03-09$12.77$12.77763,205
2018-03-08$12.60$12.60773,712
2018-03-07$12.26$12.261,042,840
2018-03-06$12.00$12.00766,787
2018-03-05$11.77$11.771,183,732
2018-03-02$11.85$11.851,143,494
2018-03-01$12.35$12.351,920,430
2018-02-28$11.89$11.891,131,076
2018-02-27$12.06$12.061,581,931
2018-02-26$12.53$12.532,771,990
2018-02-23$12.29$12.29949,111
2018-02-22$12.42$12.421,248,327
2018-02-21$12.19$12.192,089,142
2018-02-20$12.43$12.431,276,625
2018-02-16$12.86$12.861,716,017
2018-02-15$12.98$12.983,315,619
2018-02-14$12.14$12.141,522,469
2018-02-13$11.71$11.711,068,630
2018-02-12$11.62$11.62895,858
2018-02-09$11.50$11.501,969,384
2018-02-08$11.45$11.451,579,543
2018-02-07$11.81$11.811,244,864
2018-02-06$11.78$11.783,040,879
2018-02-05$11.13$11.132,473,371
2018-02-02$11.37$11.371,418,233
2018-02-01$11.71$11.711,788,970
2018-01-31$12.40$12.402,531,519
2018-01-30$12.94$12.941,395,786
2018-01-29$13.40$13.403,392,273
2018-01-26$13.63$13.633,146,548
2018-01-25$13.22$13.228,626,650
2018-01-24$12.60$12.604,434,397
2018-01-23$13.32$13.322,131,290
2018-01-22$13.39$13.391,432,084
2018-01-19$12.88$12.881,499,186
2018-01-18$12.56$12.561,154,120
2018-01-17$12.48$12.481,789,567
2018-01-16$12.42$12.421,950,877
2018-01-12$12.66$12.662,767,573
2018-01-11$12.65$12.653,328,753
2018-01-10$11.60$11.601,903,714
2018-01-09$11.87$11.872,136,782
2018-01-08$11.98$11.982,502,027
2018-01-05$12.68$12.683,818,770
2018-01-04$12.73$12.73762,608
2018-01-03$13.03$13.03940,991
2018-01-02$12.79$12.791,298,594