NASDAQ:IRWD | Stock Price History | 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.

Historical Stock Price

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2026-09-04$4.2455,782
2026-09-03$4.4482,248
2026-09-02$4.37137,298
2026-09-01$4.23125,720
2026-08-31$4.1799,543
2026-08-28$4.21114,907
2026-08-27$4.24$4.24961,200$4.2765,013
2026-08-26$4.29$4.291,029,300$4.3495,219
2026-08-25$4.39$4.391,848,200$4.14126,366
2026-08-24$4.13$4.131,384,200$4.30100,100
2026-08-21$4.29$4.292,272,200$4.23116,347
2026-08-20$4.14$4.141,471,000$4.29114,540
2026-08-19$4.36$4.361,478,100$4.49120,875
2026-08-18$4.31$4.311,411,500$4.35140,932
2026-08-17$4.36$4.361,377,000$4.29128,361
2026-08-14$4.31$4.312,334,000$4.00118,590
2026-08-13$4.08$4.082,084,200$4.32132,945
2026-08-12$4.32$4.322,720,900$4.34192,714
2026-08-11$4.30$4.301,929,800$4.10149,932
2026-08-10$4.05$4.052,184,400$4.18135,244
2026-08-07$4.32$4.321,843,100$4.34133,596
2026-08-06$4.26$4.263,362,000$4.13214,111
2026-08-05$4.15$4.152,209,900$4.32163,126
2026-08-04$4.31$4.315,768,300$4.53181,228
2026-08-03$4.42$4.423,818,200$4.31242,278
2026-07-31$4.23$4.233,583,400$4.03305,232
2026-07-30$3.73$3.731,298,600$3.5992,652
2026-07-29$3.56$3.561,252,800$3.80104,228
2026-07-28$3.80$3.801,821,200$3.90120,280
2026-07-27$3.91$3.911,930,700$3.71148,535
2026-07-24$3.71$3.711,108,900$3.82123,016
2026-07-23$3.79$3.791,074,900$3.8293,344
2026-07-22$3.88$3.881,052,700$3.8856,466
2026-07-21$3.91$3.911,164,200$3.9483,787
2026-07-20$3.85$3.851,801,200$3.96147,290
2026-07-17$3.86$3.861,804,000
2026-07-16$3.87$3.872,014,300
2026-07-15$4.00$4.001,366,500
2026-07-14$3.98$3.982,118,800
2026-07-13$4.21$4.212,268,700
2026-07-10$4.47$4.472,775,800
2026-07-09$4.67$4.673,141,600
2026-07-08$4.77$4.774,987,300
2026-07-07$4.47$4.473,479,100
2026-07-06$4.38$4.383,001,600
2026-07-02$4.33$4.332,650,100
2026-07-01$4.12$4.121,652,800
2026-06-30$4.21$4.212,586,100
2026-06-29$4.30$4.303,501,900
2026-06-26$4.13$4.137,108,500
2026-06-25$3.84$3.841,659,100
2026-06-24$3.91$3.911,764,500
2026-06-23$3.86$3.861,445,000
2026-06-22$3.82$3.822,523,900
2026-06-18$3.54$3.544,942,500
2026-06-17$3.52$3.521,629,200
2026-06-16$3.66$3.661,825,400
2026-06-15$3.69$3.692,004,900
2026-06-12$3.65$3.651,868,700
2026-06-11$3.63$3.632,781,400
2026-06-10$3.35$3.351,873,900
2026-06-09$3.22$3.222,029,500
2026-06-08$3.29$3.291,502,100
2026-06-05$3.31$3.311,334,400
2026-06-04$3.40$3.401,876,500
2026-06-03$3.24$3.242,685,900
2026-06-02$3.28$3.281,900,500
2026-06-01$3.46$3.461,699,500
2026-05-29$3.57$3.572,034,700
2026-05-28$3.60$3.601,882,100
2026-05-27$3.71$3.712,944,000
2026-05-26$3.90$3.902,783,900
2026-05-22$3.92$3.921,936,100
2026-05-21$3.85$3.852,077,100
2026-05-20$3.92$3.923,232,500
2026-05-19$3.67$3.673,435,200
2026-05-18$3.50$3.502,443,700
2026-05-15$3.58$3.582,175,000
2026-05-14$3.67$3.672,425,100
2026-05-13$3.68$3.684,412,300
2026-05-12$4.09$4.091,863,800
2026-05-11$4.17$4.172,267,600
2026-05-08$4.22$4.222,552,800
2026-05-07$4.17$4.174,964,800
2026-05-06$4.83$4.833,764,600
2026-05-05$4.67$4.674,452,800
2026-05-04$4.59$4.592,739,700
2026-05-01$4.44$4.441,738,100
2026-04-30$4.13$4.131,135,200
2026-04-29$4.15$4.152,089,200
2026-04-28$4.20$4.201,894,200
2026-04-27$4.04$4.041,918,600
2026-04-24$3.93$3.931,323,800
2026-04-23$3.79$3.791,833,700
2026-04-22$4.18$4.181,199,900
2026-04-21$4.07$4.071,912,900
2026-04-20$4.42$4.421,090,700
2026-04-17$4.43$4.431,957,600
2026-04-16$4.33$4.331,853,600
2026-04-15$4.37$4.372,725,300