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.

View year

Historical Stock Price — 2015

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2015-12-31$27.01$38.81744,400
2015-12-30$27.58$39.63829,800
2015-12-29$28.26$40.601,620,700
2015-12-28$27.41$39.38659,700
2015-12-24$27.34$39.28623,400
2015-12-23$27.54$39.571,442,400
2015-12-22$27.10$38.941,389,500
2015-12-21$26.96$38.73797,300
2015-12-18$26.77$38.462,537,800
2015-12-17$27.16$39.021,197,500
2015-12-16$27.50$39.511,913,100
2015-12-15$26.72$38.391,311,800
2015-12-14$26.13$37.541,239,600
2015-12-11$26.75$38.431,365,500
2015-12-10$26.84$38.561,293,800
2015-12-09$27.07$38.891,069,000
2015-12-08$26.98$38.761,017,800
2015-12-07$27.30$39.221,029,500
2015-12-04$27.60$39.652,263,600
2015-12-03$27.37$39.321,608,000
2015-12-02$27.49$39.501,370,600
2015-12-01$28.04$40.291,499,800
2015-11-30$27.78$39.912,203,600
2015-11-27$28.06$40.31961,100
2015-11-25$28.41$40.121,238,200
2015-11-24$28.70$40.53978,100
2015-11-23$28.94$40.87771,300
2015-11-20$28.93$40.861,522,200
2015-11-19$28.86$40.761,190,900
2015-11-18$28.89$40.801,135,800
2015-11-17$28.45$40.182,378,900
2015-11-16$28.80$40.67889,900
2015-11-13$28.61$40.40881,500
2015-11-12$29.12$41.121,292,600
2015-11-11$29.50$41.66800,100
2015-11-10$29.59$41.79938,000
2015-11-09$29.96$42.311,463,700
2015-11-06$30.29$42.781,994,900
2015-11-05$31.44$44.401,079,900
2015-11-04$31.41$44.361,170,900
2015-11-03$32.08$45.301,365,600
2015-11-02$31.81$44.921,786,400
2015-10-30$30.64$43.271,935,500
2015-10-29$30.30$42.792,759,900
2015-10-28$30.62$43.241,989,400
2015-10-27$30.25$42.721,891,400
2015-10-26$31.16$44.004,202,900
2015-10-23$31.06$43.863,639,900
2015-10-22$31.28$44.174,311,300
2015-10-21$31.34$44.261,810,700
2015-10-20$31.41$44.362,256,900
2015-10-19$31.68$44.741,413,600
2015-10-16$31.60$44.632,109,600
2015-10-15$31.25$44.131,561,900
2015-10-14$31.39$44.331,628,100
2015-10-13$31.68$44.741,164,500
2015-10-12$31.78$44.881,440,900
2015-10-09$31.28$44.172,598,400
2015-10-08$32.30$45.611,361,000
2015-10-07$31.83$44.951,686,800
2015-10-06$31.75$44.841,007,800
2015-10-05$31.71$44.781,411,200
2015-10-02$31.16$44.001,893,500
2015-10-01$31.16$44.001,571,500
2015-09-30$31.02$43.811,286,100
2015-09-29$30.36$42.871,514,500
2015-09-28$30.17$42.611,424,600
2015-09-25$30.55$43.141,416,200
2015-09-24$30.31$42.801,902,300
2015-09-23$29.81$42.10979,000
2015-09-22$29.49$41.651,292,100
2015-09-21$29.87$42.182,762,700
2015-09-18$30.00$42.374,035,700
2015-09-17$29.48$41.63929,400
2015-09-16$29.19$41.22720,500
2015-09-15$28.89$40.80969,700
2015-09-14$28.54$40.301,045,700
2015-09-11$28.38$40.08854,900
2015-09-10$28.04$39.601,482,300
2015-09-09$28.01$39.561,766,200
2015-09-08$28.46$39.521,676,000
2015-09-04$28.21$39.172,420,400
2015-09-03$28.44$39.491,611,600
2015-09-02$28.12$39.051,144,100
2015-09-01$27.63$38.372,095,900
2015-08-31$28.34$39.352,662,500
2015-08-28$28.54$39.631,803,000
2015-08-27$28.21$39.171,742,000
2015-08-26$27.41$38.063,146,000
2015-08-25$26.52$36.831,962,900
2015-08-24$27.62$38.351,996,400
2015-08-21$29.24$40.601,610,700
2015-08-20$30.24$41.992,062,900
2015-08-19$30.15$41.871,323,200
2015-08-18$30.22$41.961,397,200
2015-08-17$30.29$42.06881,000
2015-08-14$30.19$41.921,268,900
2015-08-13$29.52$40.991,134,000
2015-08-12$29.75$41.313,183,200
2015-08-11$28.91$40.151,895,700
2015-08-10$29.07$40.371,221,600
2015-08-07$29.27$40.65803,500
2015-08-06$29.27$40.651,285,500
2015-08-05$29.81$41.40858,000
2015-08-04$29.97$41.62889,000
2015-08-03$30.23$41.981,052,900
2015-07-31$30.05$41.731,266,400
2015-07-30$29.91$41.532,305,700
2015-07-29$30.66$42.582,259,600
2015-07-28$30.90$42.91975,100
2015-07-27$30.76$42.711,801,600
2015-07-24$31.12$43.211,387,400
2015-07-23$31.20$43.331,229,200
2015-07-22$31.58$43.851,037,800
2015-07-21$31.36$43.551,538,300
2015-07-20$31.40$43.60885,700
2015-07-17$31.73$44.06964,900
2015-07-16$31.77$44.12909,900
2015-07-15$31.41$43.622,355,800
2015-07-14$31.51$43.761,505,300
2015-07-13$31.15$43.26712,300
2015-07-10$30.92$42.94778,300
2015-07-09$30.67$42.59995,400
2015-07-08$30.54$42.411,227,900
2015-07-07$30.96$42.992,210,200
2015-07-06$31.23$43.371,752,900
2015-07-02$31.55$43.811,798,400
2015-07-01$31.48$43.712,319,300
2015-06-30$31.00$43.052,101,100
2015-06-29$31.09$43.172,319,500
2015-06-26$31.86$44.243,569,300
2015-06-25$31.45$43.671,109,600
2015-06-24$31.65$43.951,781,000
2015-06-23$32.57$45.231,735,700
2015-06-22$32.78$45.522,534,000
2015-06-19$32.50$45.131,759,700
2015-06-18$32.71$45.422,580,600
2015-06-17$32.03$44.481,323,900
2015-06-16$31.70$44.021,436,800
2015-06-15$31.88$44.272,070,800
2015-06-12$32.02$44.462,633,500
2015-06-11$31.86$44.241,389,800
2015-06-10$31.85$44.231,806,900
2015-06-09$31.95$43.712,406,700
2015-06-08$32.30$44.192,077,200
2015-06-05$32.65$44.672,404,200
2015-06-04$32.89$44.992,790,500
2015-06-03$34.28$46.892,236,100
2015-06-02$34.68$47.444,355,100
2015-06-01$36.83$50.381,058,600
2015-05-29$36.47$49.894,082,100
2015-05-28$36.75$50.271,220,000
2015-05-27$36.91$50.491,302,700
2015-05-26$36.50$49.931,342,400
2015-05-22$36.64$50.12776,600
2015-05-21$36.73$50.251,021,300
2015-05-20$37.23$50.931,339,000
2015-05-19$37.60$51.441,703,600
2015-05-18$37.22$50.921,835,800
2015-05-15$36.99$50.601,149,200
2015-05-14$36.58$50.042,246,600
2015-05-13$36.14$49.442,130,300
2015-05-12$35.88$49.082,415,400
2015-05-11$35.67$48.801,882,500
2015-05-08$35.44$48.481,320,500
2015-05-07$34.93$47.781,469,400
2015-05-06$34.25$46.851,013,400
2015-05-05$34.21$46.801,576,900
2015-05-04$34.85$47.671,457,700
2015-05-01$34.60$47.331,724,400
2015-04-30$34.49$47.183,411,000
2015-04-29$35.40$48.433,191,600
2015-04-28$37.28$51.006,468,100
2015-04-27$36.24$49.581,351,600
2015-04-24$36.52$49.96952,500
2015-04-23$36.50$49.931,703,500
2015-04-22$36.39$49.78905,300
2015-04-21$36.49$49.92927,200
2015-04-20$36.79$50.33939,400
2015-04-17$36.88$50.452,022,700
2015-04-16$36.88$50.451,022,900
2015-04-15$36.41$49.811,223,300
2015-04-14$36.88$50.451,005,000
2015-04-13$36.93$50.52771,500
2015-04-10$37.17$50.85870,500
2015-04-09$37.37$51.12953,000
2015-04-08$37.57$51.401,582,500
2015-04-07$36.79$50.331,211,300
2015-04-06$37.75$51.641,264,700
2015-04-02$37.15$50.821,153,600
2015-04-01$36.29$49.641,509,300
2015-03-31$36.48$49.901,008,000
2015-03-30$36.75$50.27756,400
2015-03-27$36.64$50.12617,200
2015-03-26$36.37$49.751,717,500
2015-03-25$36.43$49.841,066,800
2015-03-24$37.82$51.741,094,500
2015-03-23$38.33$52.441,315,400
2015-03-20$38.65$52.873,722,700
2015-03-19$38.27$52.352,046,100
2015-03-18$38.57$52.761,761,500
2015-03-17$37.74$51.632,230,500
2015-03-16$37.60$51.441,302,000
2015-03-13$36.87$50.441,702,000
2015-03-12$36.70$50.211,045,100
2015-03-11$35.97$49.211,653,600
2015-03-10$36.25$49.592,318,500
2015-03-09$36.56$50.011,148,400
2015-03-06$36.28$49.631,677,700
2015-03-05$36.59$50.061,082,300
2015-03-04$36.49$49.922,038,700
2015-03-03$37.39$50.501,864,200
2015-03-02$37.49$50.631,934,500
2015-02-27$36.75$49.642,199,000
2015-02-26$36.85$49.771,955,900
2015-02-25$36.48$49.271,584,400
2015-02-24$36.58$49.411,579,300
2015-02-23$36.29$49.011,648,500
2015-02-20$36.71$49.583,471,300
2015-02-19$38.83$52.441,162,500
2015-02-18$39.53$53.391,671,800
2015-02-17$39.08$52.781,354,500
2015-02-13$39.37$53.171,298,800
2015-02-12$40.47$54.66834,900
2015-02-11$39.86$53.84696,700
2015-02-10$39.75$53.691,132,000
2015-02-09$39.53$53.391,065,400
2015-02-06$40.91$55.251,168,700
2015-02-05$41.09$55.501,111,700
2015-02-04$40.55$54.77960,100
2015-02-03$40.20$54.29793,800
2015-02-02$39.67$53.581,132,400
2015-01-30$39.84$53.811,352,900
2015-01-29$40.67$54.93906,800
2015-01-28$40.17$54.251,023,600
2015-01-27$40.36$54.51994,700
2015-01-26$40.86$55.19711,400
2015-01-23$40.75$55.041,239,600
2015-01-22$40.34$54.483,096,700
2015-01-21$39.90$53.891,490,500
2015-01-20$40.75$55.041,689,600
2015-01-16$40.33$54.471,627,500
2015-01-15$40.36$54.511,614,100
2015-01-14$40.00$54.021,284,300
2015-01-13$39.69$53.611,758,700
2015-01-12$39.32$53.111,479,200
2015-01-09$39.48$53.321,280,600
2015-01-08$40.30$54.432,114,200
2015-01-07$39.57$53.441,701,900
2015-01-06$39.51$53.361,389,300
2015-01-05$39.15$52.88907,100
2015-01-02$38.96$52.62898,700