NYSE:IRM | Historical Stock Price | 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.

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Historical Stock Price — 1999

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
1999-12-31$10.77$10.77139,862
1999-12-30$10.59$10.591,152,492
1999-12-29$10.59$10.59213,627
1999-12-28$10.68$10.68207,054
1999-12-27$10.54$10.54193,178
1999-12-23$10.51$10.51215,453
1999-12-22$10.46$10.4696,771
1999-12-21$10.47$10.47415,934
1999-12-20$10.42$10.42252,701
1999-12-17$10.47$10.47525,487
1999-12-16$10.46$10.46711,726
1999-12-15$10.30$10.30369,192
1999-12-14$10.27$10.27352,759
1999-12-13$10.22$10.22740,210
1999-12-10$9.62$9.621,273,000
1999-12-09$9.33$9.33794,256
1999-12-08$9.58$9.58568,577
1999-12-07$8.88$8.88281,915
1999-12-06$8.80$8.80233,347
1999-12-03$8.76$8.76463,772
1999-12-02$8.49$8.49540,094
1999-12-01$8.11$8.11378,686
1999-11-30$8.06$8.06854,510
1999-11-29$8.32$8.32520,374
1999-11-26$8.42$8.42105,170
1999-11-24$8.47$8.47295,792
1999-11-23$8.69$8.69435,289
1999-11-22$8.54$8.542,768,392
1999-11-19$8.54$8.54291,044
1999-11-18$8.42$8.42196,829
1999-11-17$8.32$8.32251,240
1999-11-16$8.27$8.27419,221
1999-11-15$8.39$8.39434,923
1999-11-12$8.23$8.23335,596
1999-11-11$8.10$8.10205,228
1999-11-10$8.23$8.23205,228
1999-11-09$8.23$8.23505,037
1999-11-08$8.40$8.40450,261
1999-11-05$8.18$8.18239,190
1999-11-04$8.08$8.08459,755
1999-11-03$8.04$8.04514,532
1999-11-02$8.52$8.52864,369
1999-11-01$8.04$8.04585,741
1999-10-29$8.22$8.221,582,303
1999-10-28$7.45$7.451,011,170
1999-10-27$6.98$6.98747,878
1999-10-26$6.97$6.97885,184
1999-10-25$7.21$7.21437,114
1999-10-22$7.41$7.411,667,024
1999-10-21$7.29$7.294,553,732
1999-10-20$8.34$8.34252,701
1999-10-19$8.97$8.9743,821
1999-10-18$8.95$8.95100,788
1999-10-15$8.97$8.9763,540
1999-10-14$9.02$9.0261,715
1999-10-13$9.14$9.14533,521
1999-10-12$9.16$9.1677,052
1999-10-11$9.23$9.2393,850
1999-10-08$9.23$9.2347,108
1999-10-07$9.24$9.24120,143
1999-10-06$9.23$9.23135,845
1999-10-05$9.29$9.29185,509
1999-10-04$9.24$9.2451,855
1999-10-01$9.23$9.23431,637
1999-09-30$9.28$9.28125,985
1999-09-29$9.31$9.31233,712
1999-09-28$9.16$9.16106,996
1999-09-27$9.05$9.0585,451
1999-09-24$9.07$9.0785,451
1999-09-23$9.05$9.0533,961
1999-09-22$9.11$9.11305,286
1999-09-21$9.09$9.09135,115
1999-09-20$9.21$9.2169,383
1999-09-17$9.28$9.2899,328
1999-09-16$9.24$9.2422,276
1999-09-15$9.36$9.366,938
1999-09-14$9.36$9.36177,475
1999-09-13$9.28$9.281,004,962
1999-09-10$9.14$9.14297,252
1999-09-09$9.05$9.0554,411
1999-09-08$9.11$9.11176,014
1999-09-07$9.09$9.09113,569
1999-09-03$9.04$9.04296,157
1999-09-02$8.87$8.87403,518
1999-09-01$8.68$8.68150,452
1999-08-31$8.63$8.63144,609
1999-08-30$8.66$8.66142,053
1999-08-27$8.57$8.5788,007
1999-08-26$8.64$8.6443,821
1999-08-25$8.66$8.66251,971
1999-08-24$8.75$8.75199,751
1999-08-23$8.71$8.71117,221
1999-08-20$8.71$8.7164,636
1999-08-19$8.64$8.6435,787
1999-08-18$8.75$8.7589,468
1999-08-17$8.78$8.78169,076
1999-08-16$8.69$8.6929,944
1999-08-13$8.59$8.5976,687
1999-08-12$8.64$8.64242,841
1999-08-11$8.23$8.23212,897
1999-08-10$8.23$8.23205,959
1999-08-09$8.32$8.3223,006
1999-08-06$8.23$8.23152,643
1999-08-05$8.25$8.25432,732
1999-08-04$8.35$8.35138,767
1999-08-03$8.78$8.78257,814
1999-08-02$8.81$8.81188,795
1999-07-30$8.81$8.81152,643
1999-07-29$8.81$8.81347,281
1999-07-28$8.76$8.76149,357
1999-07-27$8.87$8.87123,794
1999-07-26$8.80$8.8085,816
1999-07-23$8.78$8.7835,057
1999-07-22$8.78$8.7835,787
1999-07-21$8.69$8.6967,923
1999-07-20$8.69$8.69138,767
1999-07-19$8.95$8.95168,346
1999-07-16$8.71$8.71102,249
1999-07-15$8.52$8.52559,083
1999-07-14$8.56$8.56494,812
1999-07-13$8.66$8.66105,901
1999-07-12$8.73$8.73139,497
1999-07-09$8.76$8.76249,049
1999-07-08$8.56$8.56249,049
1999-07-07$8.76$8.76241,746
1999-07-06$8.69$8.69629,197
1999-07-02$8.39$8.39236,268
1999-07-01$8.04$8.04316,242
1999-06-30$7.84$7.84235,903
1999-06-29$7.17$7.17329,023
1999-06-28$7.02$7.02472,902
1999-06-25$7.05$7.05303,095
1999-06-24$7.10$7.10314,416
1999-06-23$7.39$7.39513,436
1999-06-22$7.46$7.46185,874
1999-06-21$7.43$7.43137,671
1999-06-18$7.34$7.34216,549
1999-06-17$7.46$7.46256,718
1999-06-16$7.63$7.63273,881
1999-06-15$7.92$7.92107,727
1999-06-14$7.92$7.9262,810
1999-06-11$8.10$8.10187,335
1999-06-10$8.15$8.1561,715
1999-06-09$8.15$8.1587,642
1999-06-08$8.11$8.1182,164
1999-06-07$8.10$8.1084,355
1999-06-04$8.06$8.06848,302
1999-06-03$8.10$8.10297,252
1999-06-02$8.04$8.04439,306
1999-06-01$7.91$7.91138,767
1999-05-28$7.56$7.5669,018
1999-05-27$7.55$7.55228,234
1999-05-26$7.65$7.65720,125
1999-05-25$7.80$7.80261,465
1999-05-24$7.89$7.89385,625
1999-05-21$7.94$7.94457,929
1999-05-20$8.01$8.01568,212
1999-05-19$7.84$7.84106,996
1999-05-18$7.80$7.80176,380
1999-05-17$7.72$7.72238,459
1999-05-14$7.80$7.80554,336
1999-05-13$8.06$8.06922,067
1999-05-12$7.98$7.989,681,520
1999-05-11$7.75$7.75335,961
1999-05-10$7.48$7.48461,946
1999-05-07$7.79$7.79288,488
1999-05-06$7.86$7.86208,880
1999-05-05$7.65$7.65323,545
1999-05-04$7.74$7.74800,464
1999-05-03$7.29$7.29228,965
1999-04-30$7.62$7.62147,531
1999-04-29$7.65$7.65188,795
1999-04-28$7.79$7.79192,082
1999-04-27$7.94$7.9452,220
1999-04-26$8.03$8.0371,574
1999-04-23$8.08$8.08106,631
1999-04-22$7.63$7.63326,832
1999-04-21$7.48$7.48316,607
1999-04-20$7.60$7.60125,620
1999-04-19$7.29$7.291,182,802
1999-04-16$7.68$7.68521,470
1999-04-15$7.79$7.79548,858
1999-04-14$8.35$8.35170,902
1999-04-13$8.35$8.35189,161
1999-04-12$8.22$8.22176,745
1999-04-09$8.32$8.32106,996
1999-04-08$8.30$8.3078,147
1999-04-07$8.76$8.76140,227
1999-04-06$8.63$8.6359,524
1999-04-05$8.66$8.66114,665
1999-04-01$8.49$8.49166,155
1999-03-31$8.56$8.56647,090
1999-03-30$8.42$8.42296,887
1999-03-29$8.22$8.22235,538
1999-03-26$8.49$8.49294,331
1999-03-25$8.01$8.01534,981
1999-03-24$7.53$7.531,220,780
1999-03-23$7.87$7.87173,093
1999-03-22$7.94$7.9470,844
1999-03-19$7.98$7.98597,791
1999-03-18$8.08$8.08318,067
1999-03-17$8.21$8.21549,588
1999-03-16$8.25$8.251,554,185
1999-03-15$8.16$8.161,331,063
1999-03-12$8.04$8.04456,834
1999-03-11$8.22$8.2226,658
1999-03-10$8.22$8.22873,864
1999-03-09$8.28$8.28311,129
1999-03-08$8.10$8.10618,606
1999-03-05$8.42$8.4254,046
1999-03-04$8.39$8.39234,442
1999-03-03$8.40$8.40156,660
1999-03-02$8.49$8.49282,645
1999-03-01$8.56$8.56231,156
1999-02-26$8.39$8.39134,019
1999-02-25$8.32$8.32710,265
1999-02-24$8.32$8.32241,016
1999-02-23$8.63$8.63146,070
1999-02-22$8.49$8.49290,679
1999-02-19$8.15$8.15308,938
1999-02-18$8.28$8.28225,678
1999-02-17$8.35$8.3556,602
1999-02-16$8.45$8.45138,036
1999-02-12$8.35$8.35416,300
1999-02-11$8.56$8.5655,872
1999-02-10$8.49$8.4989,103
1999-02-09$8.35$8.35176,380
1999-02-08$8.40$8.4059,158
1999-02-05$8.63$8.631,273,000
1999-02-04$8.81$8.81155,930
1999-02-03$9.16$9.16341,439
1999-02-02$8.92$8.9248,568
1999-02-01$8.87$8.87330,483
1999-01-29$8.87$8.87284,837
1999-01-28$8.56$8.5656,967
1999-01-27$8.52$8.52264,022
1999-01-26$8.69$8.69824,200
1999-01-25$8.45$8.45190,987
1999-01-22$8.35$8.35147,896
1999-01-21$8.22$8.22328,292
1999-01-20$8.42$8.42327,197
1999-01-19$9.07$9.07265,847
1999-01-15$8.49$8.49264,752
1999-01-14$8.39$8.39430,541
1999-01-13$8.68$8.68410,822
1999-01-12$8.76$8.76991,085
1999-01-11$8.69$8.69820,548
1999-01-08$8.64$8.642,701,930
1999-01-07$8.15$8.152,689,149
1999-01-06$8.49$8.49338,517
1999-01-05$8.80$8.80396,945
1999-01-04$9.38$9.38436,749