NYSE:IRM | Stock Price History | IRON MOUNTAIN 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
1996-02-01 to 2026-09-04
Data captured

Stock Price Chart

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

$2.51$6.76$18.19$48.91$131.54$353.751996-02-012026-08-27

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$115.5133,178
2026-09-03$113.0486,097
2026-09-02$114.1294,940
2026-09-01$115.1765,630
2026-08-31$116.8362,036
2026-08-28$122.8460,495
2026-08-27$122.69$313.471,257,300$122.6378,220
2026-08-26$121.43$310.251,338,600$120.9763,238
2026-08-25$120.90$308.90986,600$122.4262,340
2026-08-24$121.19$309.641,555,200$121.4061,777
2026-08-21$122.02$311.76827,400$122.9121,618
2026-08-20$122.94$314.111,380,000$122.1039,361
2026-08-19$122.08$311.911,481,500$128.0680,570
2026-08-18$126.67$323.641,213,700$129.7956,277
2026-08-17$129.90$331.901,209,800$128.7050,412
2026-08-14$129.43$330.69874,600$125.5055,212
2026-08-13$126.62$323.511,181,100$124.5059,930
2026-08-12$124.36$317.741,096,300$124.0356,784
2026-08-11$122.39$312.711,503,100$122.1260,559
2026-08-10$121.56$310.592,068,800$120.6188,448
2026-08-07$121.15$309.541,491,800$123.2669,768
2026-08-06$121.96$311.612,882,900$127.46170,394
2026-08-05$127.13$324.822,711,900$128.82153,848
2026-08-04$125.51$320.682,511,100$123.05123,420
2026-08-03$124.08$317.021,889,800$121.8777,000
2026-07-31$122.32$312.532,939,400$125.6359,614
2026-07-30$124.64$318.462,745,900$122.42133,384
2026-07-29$120.75$308.521,802,600$124.3496,532
2026-07-28$125.70$321.161,168,900$126.5375,646
2026-07-27$126.99$324.461,455,000$129.6477,802
2026-07-24$128.31$327.831,808,100$126.8593,924
2026-07-23$124.55$318.231,660,700$123.3772,049
2026-07-22$124.51$318.121,229,800$125.4159,882
2026-07-21$125.56$320.811,537,300$125.9993,266
2026-07-20$124.23$317.411,775,600$123.63108,208
2026-07-17$123.82$316.362,105,100
2026-07-16$121.66$310.842,244,300
2026-07-15$123.52$315.592,946,900
2026-07-14$122.66$313.402,580,300
2026-07-13$122.37$312.662,813,900
2026-07-10$121.51$310.461,834,500
2026-07-09$119.48$305.271,802,600
2026-07-08$115.46$295.002,340,600
2026-07-07$115.75$295.742,791,400
2026-07-06$116.38$297.351,911,800
2026-07-02$117.16$299.342,957,700
2026-07-01$121.90$311.462,204,100
2026-06-30$126.31$322.721,782,700
2026-06-29$129.97$332.071,210,900
2026-06-26$132.44$338.382,134,000
2026-06-25$131.06$334.862,267,700
2026-06-24$130.59$333.662,322,500
2026-06-23$133.06$339.971,969,200
2026-06-22$131.86$336.901,732,800
2026-06-18$127.83$326.612,110,400
2026-06-17$125.44$320.501,304,200
2026-06-16$128.21$327.581,669,700
2026-06-15$126.28$322.651,257,000
2026-06-12$127.24$322.89928,200
2026-06-11$125.17$317.641,239,400
2026-06-10$123.36$313.05846,400
2026-06-09$126.14$320.101,368,900
2026-06-08$123.50$313.401,436,400
2026-06-05$124.66$316.341,706,500
2026-06-04$130.25$330.531,318,600
2026-06-03$127.95$324.691,205,200
2026-06-02$128.46$325.991,465,800
2026-06-01$126.38$320.711,508,200
2026-05-29$128.25$325.452,365,400
2026-05-28$126.83$321.851,026,000
2026-05-27$127.01$322.311,255,000
2026-05-26$128.40$325.831,003,700
2026-05-22$126.46$320.91949,800
2026-05-21$127.33$323.121,342,200
2026-05-20$125.81$319.261,025,600
2026-05-19$123.52$313.45964,700
2026-05-18$123.96$314.571,032,700
2026-05-15$125.07$317.381,249,400
2026-05-14$127.75$324.191,051,400
2026-05-13$126.12$320.051,742,000
2026-05-12$126.21$320.282,047,400
2026-05-11$129.96$329.791,358,900
2026-05-08$128.84$326.951,141,500
2026-05-07$126.81$321.802,182,400
2026-05-06$132.06$335.121,677,500
2026-05-05$131.70$334.212,242,100
2026-05-04$128.22$325.381,494,900
2026-05-01$127.19$322.762,399,900
2026-04-30$125.99$319.725,039,300
2026-04-29$114.52$290.611,848,600
2026-04-28$112.62$285.791,882,400
2026-04-27$112.75$286.121,712,600
2026-04-24$116.03$294.441,642,700
2026-04-23$116.12$294.671,390,400
2026-04-22$117.23$297.491,355,500
2026-04-21$117.83$299.011,526,800
2026-04-20$120.53$305.861,447,600
2026-04-17$118.07$299.621,938,900
2026-04-16$117.73$298.761,830,900
2026-04-15$113.55$288.15998,100