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 — 2020

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2020-12-31$11.39$11.39847,000
2020-12-30$11.51$11.51784,600
2020-12-29$11.38$11.381,139,500
2020-12-28$11.49$11.49914,700
2020-12-24$11.72$11.72302,800
2020-12-23$11.81$11.811,108,500
2020-12-22$12.04$12.04732,100
2020-12-21$12.15$12.15753,700
2020-12-18$12.02$12.023,225,100
2020-12-17$12.04$12.041,037,600
2020-12-16$11.92$11.921,021,100
2020-12-15$11.97$11.971,582,200
2020-12-14$12.20$12.202,051,400
2020-12-11$11.81$11.81984,900
2020-12-10$12.12$12.121,113,100
2020-12-09$11.88$11.88993,300
2020-12-08$12.03$12.03968,400
2020-12-07$11.76$11.761,213,400
2020-12-04$11.98$11.984,304,500
2020-12-03$11.58$11.58956,800
2020-12-02$11.63$11.631,147,100
2020-12-01$11.87$11.871,409,500
2020-11-30$11.52$11.521,630,800
2020-11-27$11.83$11.83535,200
2020-11-25$11.63$11.63814,200
2020-11-24$11.76$11.761,285,300
2020-11-23$11.99$11.991,064,000
2020-11-20$11.78$11.78810,700
2020-11-19$11.70$11.70719,800
2020-11-18$11.58$11.58996,400
2020-11-17$11.95$11.951,110,200
2020-11-16$11.81$11.811,209,900
2020-11-13$11.66$11.661,586,300
2020-11-12$11.56$11.561,441,100
2020-11-11$11.56$11.562,264,500
2020-11-10$11.53$11.533,407,000
2020-11-09$10.77$10.773,592,600
2020-11-06$10.67$10.677,356,400
2020-11-05$10.01$10.013,545,500
2020-11-04$10.26$10.263,429,300
2020-11-03$9.93$9.931,252,500
2020-11-02$9.74$9.741,384,100
2020-10-30$9.88$9.882,017,800
2020-10-29$9.62$9.621,721,200
2020-10-28$9.50$9.501,990,800
2020-10-27$9.60$9.602,520,400
2020-10-26$9.57$9.571,495,200
2020-10-23$9.64$9.641,802,700
2020-10-22$9.49$9.492,465,900
2020-10-21$9.05$9.051,819,700
2020-10-20$9.52$9.521,188,600
2020-10-19$9.87$9.871,519,500
2020-10-16$10.37$10.372,444,500
2020-10-15$10.05$10.051,181,100
2020-10-14$9.79$9.791,923,100
2020-10-13$10.06$10.063,509,900
2020-10-12$10.51$10.511,085,700
2020-10-09$10.49$10.491,967,500
2020-10-08$10.49$10.492,462,900
2020-10-07$9.86$9.862,153,800
2020-10-06$9.50$9.502,089,000
2020-10-05$9.36$9.362,311,800
2020-10-02$9.31$9.315,633,100
2020-10-01$9.28$9.286,649,800
2020-09-30$8.99$8.994,964,200
2020-09-29$9.42$9.428,059,000
2020-09-28$9.53$9.53844,500
2020-09-25$9.45$9.45899,600
2020-09-24$9.46$9.46711,500
2020-09-23$9.47$9.47911,900
2020-09-22$9.68$9.68794,000
2020-09-21$9.70$9.701,194,800
2020-09-18$10.00$10.002,492,600
2020-09-17$9.91$9.911,066,000
2020-09-16$10.00$10.00862,100
2020-09-15$10.15$10.151,076,000
2020-09-14$9.95$9.951,557,900
2020-09-11$9.73$9.731,083,200
2020-09-10$9.60$9.601,034,300
2020-09-09$9.86$9.861,205,900
2020-09-08$9.72$9.721,315,200
2020-09-04$9.78$9.781,386,300
2020-09-03$9.64$9.641,066,200
2020-09-02$9.87$9.87917,500
2020-09-01$9.78$9.781,105,700
2020-08-31$10.10$10.101,350,900
2020-08-28$10.13$10.133,430,200
2020-08-27$10.21$10.211,838,100
2020-08-26$10.30$10.301,994,200
2020-08-25$10.59$10.59672,200
2020-08-24$10.43$10.431,009,000
2020-08-21$10.41$10.412,079,600
2020-08-20$10.63$10.631,053,000
2020-08-19$10.49$10.491,284,700
2020-08-18$10.74$10.742,216,300
2020-08-17$10.29$10.291,293,500
2020-08-14$9.95$9.95980,600
2020-08-13$10.23$10.23873,200
2020-08-12$10.13$10.131,312,500
2020-08-11$9.93$9.931,139,000
2020-08-10$10.18$10.181,854,100
2020-08-07$10.20$10.202,131,200
2020-08-06$10.09$10.091,857,200
2020-08-05$9.64$9.642,148,700
2020-08-04$9.73$9.733,002,900
2020-08-03$9.83$9.831,896,900
2020-07-31$9.17$9.174,678,700
2020-07-30$9.42$9.422,517,500
2020-07-29$9.14$9.141,452,300
2020-07-28$9.34$9.343,355,200
2020-07-27$9.71$9.713,429,100
2020-07-24$9.51$9.513,946,700
2020-07-23$9.80$9.801,910,600
2020-07-22$9.90$9.902,151,200
2020-07-21$9.86$9.863,424,900
2020-07-20$10.60$10.601,279,600
2020-07-17$10.35$10.351,240,900
2020-07-16$10.24$10.24811,500
2020-07-15$10.35$10.351,678,400
2020-07-14$10.22$10.221,795,300
2020-07-13$10.03$10.031,198,800
2020-07-10$9.86$9.86747,000
2020-07-09$9.86$9.86877,400
2020-07-08$9.99$9.992,033,000
2020-07-07$10.16$10.161,458,200
2020-07-06$10.27$10.271,075,100
2020-07-02$10.18$10.181,034,200
2020-07-01$10.17$10.171,623,400
2020-06-30$10.32$10.32991,400
2020-06-29$10.18$10.182,121,600
2020-06-26$10.05$10.052,660,100
2020-06-25$10.19$10.191,353,600
2020-06-24$9.80$9.801,380,800
2020-06-23$10.02$10.021,141,100
2020-06-22$10.06$10.062,093,200
2020-06-19$9.61$9.615,502,500
2020-06-18$9.98$9.98959,900
2020-06-17$10.17$10.172,448,500
2020-06-16$9.53$9.532,092,700
2020-06-15$9.31$9.312,297,100
2020-06-12$9.14$9.143,080,600
2020-06-11$9.32$9.322,620,000
2020-06-10$9.81$9.813,295,100
2020-06-09$10.61$10.615,761,400
2020-06-08$10.05$10.051,300,900
2020-06-05$9.94$9.941,686,800
2020-06-04$9.79$9.793,327,900
2020-06-03$10.05$10.051,370,600
2020-06-02$10.46$10.464,622,100
2020-06-01$9.73$9.734,355,900
2020-05-29$9.73$9.733,734,000
2020-05-28$9.76$9.764,224,400
2020-05-27$10.65$10.654,231,700
2020-05-26$11.70$11.702,451,700
2020-05-22$11.97$11.97826,500
2020-05-21$11.85$11.851,275,300
2020-05-20$11.90$11.901,851,700
2020-05-19$11.34$11.341,204,900
2020-05-18$11.55$11.552,168,100
2020-05-15$11.13$11.131,644,200
2020-05-14$10.80$10.801,848,700
2020-05-13$10.55$10.552,291,700
2020-05-12$10.70$10.701,968,700
2020-05-11$10.76$10.761,678,200
2020-05-08$10.19$10.191,379,700
2020-05-07$10.16$10.161,246,200
2020-05-06$10.40$10.401,950,200
2020-05-05$10.50$10.502,076,000
2020-05-04$10.20$10.202,361,000
2020-05-01$9.64$9.642,761,100
2020-04-30$10.00$10.001,808,900
2020-04-29$10.23$10.232,590,000
2020-04-28$10.22$10.221,396,100
2020-04-27$10.24$10.241,355,500
2020-04-24$10.28$10.281,764,400
2020-04-23$9.85$9.851,104,900
2020-04-22$9.95$9.951,062,800
2020-04-21$10.10$10.101,381,000
2020-04-20$10.31$10.312,579,700
2020-04-17$10.32$10.321,778,100
2020-04-16$10.12$10.121,587,300
2020-04-15$10.01$10.011,446,100
2020-04-14$10.58$10.581,708,300
2020-04-13$9.84$9.841,392,200
2020-04-09$9.75$9.751,444,100
2020-04-08$9.84$9.842,758,100
2020-04-07$9.64$9.642,485,800
2020-04-06$10.07$10.071,780,900
2020-04-03$9.87$9.871,266,700
2020-04-02$10.10$10.101,229,300
2020-04-01$9.87$9.871,619,200
2020-03-31$10.09$10.091,459,500
2020-03-30$10.33$10.331,173,700
2020-03-27$9.80$9.802,240,400
2020-03-26$10.08$10.082,142,700
2020-03-25$10.20$10.203,537,400
2020-03-24$10.03$10.031,827,500
2020-03-23$9.60$9.601,536,400
2020-03-20$9.38$9.381,801,400
2020-03-19$9.41$9.412,423,600
2020-03-18$8.58$8.582,113,500
2020-03-17$9.62$9.622,307,900
2020-03-16$9.37$9.372,730,500
2020-03-13$10.18$10.182,367,600
2020-03-12$9.64$9.643,046,900
2020-03-11$10.50$10.502,684,800
2020-03-10$11.45$11.452,165,400
2020-03-09$11.33$11.332,124,700
2020-03-06$12.23$12.231,415,000
2020-03-05$12.30$12.301,928,900
2020-03-04$12.60$12.601,210,700
2020-03-03$12.24$12.242,161,000
2020-03-02$12.69$12.692,459,600
2020-02-28$12.04$12.043,601,000
2020-02-27$11.90$11.903,392,100
2020-02-26$11.07$11.073,215,400
2020-02-25$11.06$11.064,024,100
2020-02-24$11.28$11.282,301,800
2020-02-21$11.63$11.632,004,600
2020-02-20$12.01$12.011,450,700
2020-02-19$11.93$11.931,528,700
2020-02-18$12.10$12.102,171,400
2020-02-14$12.06$12.062,579,600
2020-02-13$13.07$13.072,551,600
2020-02-12$12.46$12.461,122,700
2020-02-11$12.18$12.18757,800
2020-02-10$12.35$12.351,415,800
2020-02-07$12.22$12.221,629,400
2020-02-06$12.51$12.511,507,900
2020-02-05$12.43$12.431,864,500
2020-02-04$12.60$12.601,228,700
2020-02-03$12.50$12.501,666,600
2020-01-31$12.08$12.081,473,600
2020-01-30$12.17$12.171,276,200
2020-01-29$12.30$12.301,151,500
2020-01-28$12.38$12.38922,400
2020-01-27$12.18$12.18862,500
2020-01-24$12.37$12.371,977,400
2020-01-23$12.83$12.831,516,500
2020-01-22$12.63$12.631,554,700
2020-01-21$12.53$12.531,673,500
2020-01-17$12.60$12.601,399,800
2020-01-16$12.71$12.711,402,500
2020-01-15$12.77$12.771,205,400
2020-01-14$12.95$12.952,142,900
2020-01-13$12.53$12.533,970,700
2020-01-10$12.66$12.661,504,000
2020-01-09$13.05$13.053,058,300
2020-01-08$13.15$13.152,857,000
2020-01-07$13.34$13.343,128,400
2020-01-06$14.01$14.013,616,500
2020-01-03$13.18$13.181,931,300
2020-01-02$13.26$13.261,592,400