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 — 2021

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2021-12-31$11.66$11.661,392,200
2021-12-30$11.70$11.701,094,600
2021-12-29$11.85$11.85891,700
2021-12-28$11.82$11.821,277,900
2021-12-27$11.69$11.691,315,500
2021-12-23$11.87$11.872,288,400
2021-12-22$11.63$11.631,284,300
2021-12-21$11.43$11.431,554,300
2021-12-20$11.35$11.351,962,800
2021-12-17$11.25$11.252,894,300
2021-12-16$11.17$11.172,274,200
2021-12-15$11.35$11.351,970,000
2021-12-14$10.92$10.922,338,700
2021-12-13$11.15$11.151,841,500
2021-12-10$11.06$11.061,807,600
2021-12-09$11.27$11.272,226,200
2021-12-08$11.44$11.442,947,600
2021-12-07$11.44$11.441,642,200
2021-12-06$11.19$11.192,349,800
2021-12-03$10.98$10.981,928,800
2021-12-02$11.11$11.112,672,700
2021-12-01$10.94$10.943,852,800
2021-11-30$11.09$11.094,783,700
2021-11-29$10.86$10.863,106,700
2021-11-26$11.16$11.161,708,000
2021-11-24$11.58$11.581,278,000
2021-11-23$11.63$11.632,314,500
2021-11-22$11.68$11.681,697,900
2021-11-19$11.70$11.701,893,500
2021-11-18$11.88$11.882,218,000
2021-11-17$12.17$12.172,049,600
2021-11-16$12.30$12.301,826,700
2021-11-15$12.19$12.191,404,700
2021-11-12$12.47$12.472,041,600
2021-11-11$12.29$12.291,592,700
2021-11-10$12.37$12.371,177,600
2021-11-09$12.69$12.694,316,300
2021-11-08$13.20$13.201,253,100
2021-11-05$12.90$12.901,863,700
2021-11-04$12.58$12.583,201,500
2021-11-03$12.85$12.853,896,200
2021-11-02$12.75$12.751,644,900
2021-11-01$12.93$12.931,173,100
2021-10-29$12.77$12.772,327,500
2021-10-28$12.81$12.813,798,800
2021-10-27$12.39$12.392,183,000
2021-10-26$12.73$12.731,947,500
2021-10-25$12.87$12.871,842,200
2021-10-22$13.03$13.032,014,800
2021-10-21$13.15$13.152,055,100
2021-10-20$13.35$13.351,377,300
2021-10-19$13.44$13.44998,100
2021-10-18$13.41$13.411,503,300
2021-10-15$13.66$13.661,815,900
2021-10-14$13.65$13.651,045,500
2021-10-13$13.55$13.551,584,500
2021-10-12$13.85$13.85733,200
2021-10-11$13.77$13.771,204,900
2021-10-08$13.95$13.951,586,300
2021-10-07$13.93$13.932,418,600
2021-10-06$13.52$13.521,856,500
2021-10-05$13.33$13.331,528,900
2021-10-04$13.16$13.162,252,600
2021-10-01$13.34$13.342,754,700
2021-09-30$13.06$13.061,483,400
2021-09-29$13.24$13.241,677,900
2021-09-28$13.36$13.361,857,000
2021-09-27$13.49$13.491,883,000
2021-09-24$13.45$13.452,726,900
2021-09-23$12.99$12.992,988,400
2021-09-22$12.61$12.611,627,500
2021-09-21$12.67$12.671,854,000
2021-09-20$12.35$12.351,752,700
2021-09-17$12.35$12.353,080,800
2021-09-16$12.08$12.081,418,400
2021-09-15$12.09$12.091,667,400
2021-09-14$11.92$11.921,418,500
2021-09-13$12.20$12.201,812,900
2021-09-10$12.20$12.202,004,500
2021-09-09$12.44$12.441,476,600
2021-09-08$12.45$12.451,312,500
2021-09-07$12.56$12.561,907,400
2021-09-03$12.75$12.751,797,400
2021-09-02$13.11$13.111,659,800
2021-09-01$13.27$13.271,957,300
2021-08-31$13.10$13.102,197,600
2021-08-30$13.28$13.281,406,400
2021-08-27$13.22$13.221,248,600
2021-08-26$13.06$13.061,223,400
2021-08-25$13.10$13.101,011,700
2021-08-24$13.25$13.25945,100
2021-08-23$13.10$13.101,763,800
2021-08-20$13.24$13.241,636,600
2021-08-19$13.00$13.001,929,700
2021-08-18$13.24$13.241,351,100
2021-08-17$13.45$13.451,577,900
2021-08-16$13.37$13.371,656,400
2021-08-13$13.64$13.641,275,200
2021-08-12$13.84$13.842,376,300
2021-08-11$13.92$13.921,670,800
2021-08-10$13.49$13.492,123,900
2021-08-09$13.28$13.281,167,600
2021-08-06$13.35$13.351,972,200
2021-08-05$13.29$13.291,691,200
2021-08-04$12.94$12.941,226,800
2021-08-03$13.00$13.001,438,300
2021-08-02$13.27$13.27828,200
2021-07-30$13.27$13.271,358,700
2021-07-29$13.16$13.163,504,700
2021-07-28$13.41$13.411,372,900
2021-07-27$13.10$13.10908,200
2021-07-26$13.07$13.071,004,000
2021-07-23$13.02$13.021,858,900
2021-07-22$12.99$12.994,254,400
2021-07-21$13.26$13.261,424,100
2021-07-20$12.85$12.852,345,600
2021-07-19$12.60$12.601,200,700
2021-07-16$12.49$12.491,354,700
2021-07-15$12.57$12.571,345,600
2021-07-14$12.44$12.441,768,200
2021-07-13$12.38$12.381,033,000
2021-07-12$12.43$12.431,646,700
2021-07-09$12.61$12.611,266,100
2021-07-08$12.27$12.272,233,600
2021-07-07$12.30$12.305,192,400
2021-07-06$12.34$12.342,019,200
2021-07-02$12.58$12.581,968,000
2021-07-01$12.93$12.931,217,400
2021-06-30$12.87$12.871,537,400
2021-06-29$12.72$12.721,227,000
2021-06-28$13.11$13.111,825,100
2021-06-25$13.10$13.107,659,300
2021-06-24$12.81$12.811,761,700
2021-06-23$12.40$12.401,729,500
2021-06-22$12.58$12.583,351,900
2021-06-21$12.07$12.071,727,800
2021-06-18$11.72$11.723,585,900
2021-06-17$11.47$11.472,492,800
2021-06-16$11.47$11.471,742,400
2021-06-15$11.18$11.181,242,000
2021-06-14$11.24$11.241,837,800
2021-06-11$11.73$11.731,025,800
2021-06-10$11.77$11.772,258,900
2021-06-09$11.40$11.402,452,100
2021-06-08$11.46$11.462,127,000
2021-06-07$12.00$12.001,535,600
2021-06-04$11.84$11.841,469,500
2021-06-03$11.98$11.981,520,700
2021-06-02$11.68$11.683,049,200
2021-06-01$11.56$11.561,988,800
2021-05-28$11.57$11.571,017,500
2021-05-27$11.74$11.741,977,300
2021-05-26$11.99$11.991,278,500
2021-05-25$11.92$11.921,926,800
2021-05-24$12.24$12.241,725,100
2021-05-21$12.32$12.321,314,300
2021-05-20$12.43$12.432,429,200
2021-05-19$12.08$12.081,411,200
2021-05-18$12.00$12.001,746,000
2021-05-17$11.85$11.851,309,400
2021-05-14$11.68$11.682,047,800
2021-05-13$11.48$11.483,027,700
2021-05-12$11.16$11.161,632,600
2021-05-11$10.99$10.991,519,700
2021-05-10$10.99$10.991,866,100
2021-05-07$10.98$10.981,782,100
2021-05-06$10.49$10.491,974,600
2021-05-05$10.83$10.832,350,400
2021-05-04$10.83$10.831,362,500
2021-05-03$11.10$11.101,426,900
2021-04-30$11.04$11.041,243,600
2021-04-29$11.26$11.26986,700
2021-04-28$11.34$11.341,465,800
2021-04-27$11.40$11.401,296,900
2021-04-26$11.20$11.201,282,600
2021-04-23$11.10$11.102,168,100
2021-04-22$10.81$10.811,633,900
2021-04-21$10.86$10.861,240,200
2021-04-20$10.66$10.66896,700
2021-04-19$10.61$10.611,185,800
2021-04-16$10.61$10.611,200,000
2021-04-15$10.84$10.841,383,000
2021-04-14$10.63$10.631,593,900
2021-04-13$10.31$10.311,638,800
2021-04-12$10.16$10.161,708,000
2021-04-09$10.19$10.191,485,600
2021-04-08$10.34$10.342,225,200
2021-04-07$10.39$10.391,434,700
2021-04-06$10.70$10.702,271,600
2021-04-05$10.98$10.981,372,000
2021-04-01$10.88$10.882,687,900
2021-03-31$11.18$11.181,626,300
2021-03-30$10.95$10.951,014,400
2021-03-29$10.81$10.81958,500
2021-03-26$10.89$10.891,207,200
2021-03-25$10.91$10.911,645,300
2021-03-24$10.60$10.602,250,600
2021-03-23$10.79$10.792,641,600
2021-03-22$11.52$11.521,360,800
2021-03-19$11.25$11.253,482,300
2021-03-18$11.22$11.221,670,800
2021-03-17$11.53$11.532,257,200
2021-03-16$11.49$11.494,087,700
2021-03-15$11.13$11.132,736,300
2021-03-12$11.32$11.321,710,100
2021-03-11$11.26$11.263,174,100
2021-03-10$10.55$10.552,100,100
2021-03-09$10.97$10.976,393,500
2021-03-08$10.21$10.214,633,200
2021-03-05$10.11$10.113,684,300
2021-03-04$9.99$9.997,785,800
2021-03-03$9.97$9.974,318,600
2021-03-02$9.53$9.532,325,000
2021-03-01$9.59$9.592,661,900
2021-02-26$9.23$9.232,836,700
2021-02-25$9.04$9.042,455,900
2021-02-24$9.30$9.301,565,300
2021-02-23$9.48$9.482,026,200
2021-02-22$9.36$9.362,155,000
2021-02-19$9.54$9.542,090,800
2021-02-18$9.32$9.322,258,000
2021-02-17$9.73$9.731,562,100
2021-02-16$10.02$10.021,988,600
2021-02-12$9.99$9.991,242,300
2021-02-11$10.12$10.121,479,000
2021-02-10$10.33$10.332,121,900
2021-02-09$10.44$10.444,038,400
2021-02-08$10.66$10.661,239,100
2021-02-05$10.31$10.311,442,100
2021-02-04$10.05$10.051,357,100
2021-02-03$10.32$10.32906,100
2021-02-02$10.36$10.361,569,700
2021-02-01$10.42$10.421,391,500
2021-01-29$10.22$10.221,468,200
2021-01-28$10.56$10.562,319,200
2021-01-27$10.39$10.393,110,700
2021-01-26$10.19$10.192,033,800
2021-01-25$10.44$10.441,830,100
2021-01-22$10.34$10.342,235,200
2021-01-21$10.26$10.261,986,100
2021-01-20$10.76$10.764,243,400
2021-01-19$10.98$10.981,542,000
2021-01-15$11.03$11.031,728,100
2021-01-14$11.33$11.331,352,200
2021-01-13$11.27$11.271,060,700
2021-01-12$11.71$11.711,342,000
2021-01-11$11.63$11.63836,000
2021-01-08$11.86$11.86845,000
2021-01-07$11.81$11.811,343,800
2021-01-06$11.49$11.491,460,100
2021-01-05$11.16$11.161,084,400
2021-01-04$11.18$11.181,138,100