NYSE:IRM | Shares Outstanding | IRON MOUNTAIN INC

Complete source-backed shares outstanding history.

Available history
2008-12-31 to 2026-07-24
Data captured

Historical Shares Outstanding

DateShares outstanding
2014-02-07191,504,318
2013-12-31191,426,920
2013-10-25191,217,917
2013-09-30191,212,860
2013-07-26191,109,909
2013-06-30191,109,705
2013-04-26190,666,820
2013-03-31190,611,865
2013-02-08190,140,008
2012-12-31190,005,788
2012-10-23172,515,017
2012-09-30172,133,147
2012-07-23171,639,223
2012-06-30171,635,277
2012-04-23171,199,613
2012-03-31171,182,398
2012-02-10171,087,289
2011-12-31172,140,966
2011-10-24185,617,679
2011-09-30186,615,930
2011-07-25203,145,012
2011-06-30202,871,443
2011-04-25200,689,751
2011-03-31200,258,115
2011-02-10200,194,653
2010-12-31200,064,066
2010-10-25200,129,229
2010-09-30200,432,833
2010-07-26201,511,311
2010-06-30201,975,650
2010-04-26203,297,514
2010-03-31203,431,849
2009-12-31203,546,757
2008-12-31201,931,332