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IRM - As of  04/18/25, 03:12:34 PM:   137 Insider Transactions.

Sector: Technology    Industry: Business Software & Services
Prev Close:$40.31  Avg Vol(3m): 2,668,900  P/E: 58.60  EPS: 0.69

Email this page to a friend.    Insider Transactions for IRM

Buy/Sell* Filed Date Subject Symbol Acquirer Pct Owned Details
S 2020-02-13 21:26:13.0 IRON MOUNTAIN INC IRM Capital World Investors 10.0% view
B 2020-02-11 16:49:56.0 IRON MOUNTAIN INC IRM VANGUARD GROUP INC 16.57% view
B 2020-02-05 12:16:15.0 IRON MOUNTAIN INC IRM BlackRock Inc 7.4% view
B 2019-02-13 18:36:02.0 IRON MOUNTAIN INC IRM Capital World Investors 11.7% view
S 2019-02-13 07:37:31.0 IRON MOUNTAIN INC IRM VANGUARD GROUP INC 15.32% view
S 2019-02-04 16:45:07.0 IRON MOUNTAIN INC IRM BlackRock Inc 7.0% view
S 2019-01-31 15:03:38.0 IRON MOUNTAIN INC IRM VANGUARD SPECIALIZED FUNDS 4.52% view
S 2018-02-13 19:38:53.0 IRON MOUNTAIN INC IRM Capital International Investors 4.5% view
B 2018-02-13 17:33:15.0 IRON MOUNTAIN INC IRM Capital World Investors 10.6% view
B 2018-02-09 09:44:38.0 IRON MOUNTAIN INC IRM VANGUARD GROUP INC 16.94% view
S 2018-02-02 08:31:19.0 IRON MOUNTAIN INC IRM VANGUARD SPECIALIZED FUNDS 6.33% view
B 2018-01-25 11:14:08.0 IRON MOUNTAIN INC IRM BlackRock Inc 7.3% view
S 2017-02-14 15:12:17.0 IRON MOUNTAIN INC IRM PARNASSUS INVESTMENTS 4.37% view
B 2017-02-13 17:14:17.0 IRON MOUNTAIN INC IRM Capital International Investors 5.3% view
S 2017-02-13 17:03:44.0 IRON MOUNTAIN INC IRM Capital World Investors 9.8% view
B 2017-02-13 12:11:10.0 IRON MOUNTAIN INC IRM VANGUARD SPECIALIZED FUNDS 7.2% view
B 2017-02-10 16:28:19.0 IRON MOUNTAIN INC IRM VANGUARD GROUP INC 16.07% view
S 2017-02-07 11:55:54.0 IRON MOUNTAIN INC IRM PRICE T ROWE ASSOCIATES INC 0.9% view
S 2017-02-06 16:52:19.0 IRON MOUNTAIN INC IRM RYAN VINCENT J 4.8% view
B 2017-01-25 14:44:36.0 IRON MOUNTAIN INC IRM BlackRock Inc 6.9% view
B 2016-02-12 12:06:19.0 IRON MOUNTAIN INC IRM PRICE T ROWE ASSOCIATES INC 7.0% view
B 2016-02-10 09:47:31.0 IRON MOUNTAIN INC IRM VANGUARD GROUP INC 14.58% view
B 2016-02-09 09:04:44.0 IRON MOUNTAIN INC IRM VANGUARD SPECIALIZED FUNDS 6.83% view
S 2016-02-02 08:59:13.0 IRON MOUNTAIN INC IRM RYAN VINCENT J 7.3% view
B 2016-01-28 15:46:07.0 IRON MOUNTAIN INC IRM BlackRock Inc 6.3% view
S 2015-02-13 11:04:31.0 IRON MOUNTAIN INC IRM RYAN VINCENT J 7.6% view
B 2015-02-12 14:43:42.0 IRON MOUNTAIN INC IRM PARNASSUS INVESTMENTS 5.03% view
B 2015-02-10 13:05:46.0 IRON MOUNTAIN INC IRM VANGUARD GROUP INC 12.52% view
B 2015-02-06 09:19:42.0 IRON MOUNTAIN INC IRM VANGUARD SPECIALIZED FUNDS 5.8% view
B 2015-02-02 16:38:56.0 IRON MOUNTAIN INC IRM BlackRock Inc 6.2% view
B 2014-12-10 07:23:19.0 IRON MOUNTAIN INC IRM VANGUARD GROUP INC 12.38% view
S 2014-02-14 16:51:47.0 IRON MOUNTAIN INC IRM RYAN VINCENT J 8.3% view
S 2014-02-14 16:24:28.0 IRON MOUNTAIN INC IRM HIGHFIELDS CAPITAL MANAGEMENT LP 4.6% view
S 2014-02-13 17:09:10.0 IRON MOUNTAIN INC IRM Capital World Investors 10.9% view
B 2014-02-11 10:49:46.0 IRON MOUNTAIN INC IRM VANGUARD GROUP INC 6.07% view
S 2013-11-19 15:02:34.0 IRON MOUNTAIN INC IRM DAVIS SELECTED ADVISERS 4.97% view
S 2013-04-19 13:43:48.0 IRON MOUNTAIN INC IRM DAVIS SELECTED ADVISERS 5.5% view
B 2013-02-14 17:18:50.0 IRON MOUNTAIN INC IRM HIGHFIELDS CAPITAL MANAGEMENT LP 5.6% view
B 2013-02-13 16:53:55.0 IRON MOUNTAIN INC IRM RYAN VINCENT J 9.1% view
B 2013-02-13 11:44:15.0 IRON MOUNTAIN INC IRM Capital World Investors 11.8% view
S 2013-02-11 11:37:43.0 IRON MOUNTAIN INC IRM VANGUARD GROUP INC 4.72% view
S 2013-01-31 16:09:41.0 IRON MOUNTAIN INC IRM JANUS CAPITAL MANAGEMENT LLC 3.5% view
S 2012-12-31 12:26:51.0 IRON MOUNTAIN INC IRM DAVIS SELECTED ADVISERS 6.5% view
S 2012-12-07 14:28:06.0 IRON MOUNTAIN INC IRM DAVIS SELECTED ADVISERS 7.7% view
S 2012-11-19 14:56:27.0 IRON MOUNTAIN INC IRM DAVIS SELECTED ADVISERS 8.8% view
B 2012-11-08 19:52:33.0 IRON MOUNTAIN INC IRM Capital World Investors 10.7% view
S 2012-10-15 16:01:36.0 IRON MOUNTAIN INC IRM DAVIS SELECTED ADVISERS 9.9% view
S 2012-08-28 14:11:20.0 IRON MOUNTAIN INC IRM DAVIS SELECTED ADVISERS 10.9% view
B 2012-08-02 16:33:50.0 IRON MOUNTAIN INC IRM HIGHFIELDS CAPITAL MANAGEMENT LP 5.4% view
S 2012-07-13 15:52:47.0 IRON MOUNTAIN INC IRM DAVIS SELECTED ADVISERS 12.0% view
S 2012-06-20 14:52:45.0 IRON MOUNTAIN INC IRM DAVIS SELECTED ADVISERS 13.2% view
S 2012-06-08 11:12:18.0 IRON MOUNTAIN INC IRM BlackRock Inc 4.4% view
S 2012-05-03 14:47:48.0 IRON MOUNTAIN INC IRM DAVIS SELECTED ADVISERS 14.2% view
S 2012-04-10 15:28:04.0 IRON MOUNTAIN INC IRM DAVIS SELECTED ADVISERS 15.4% view
B 2012-02-14 19:05:48.0 IRON MOUNTAIN INC IRM RYAN VINCENT J 8.5% view
B 2012-02-14 15:58:28.0 IRON MOUNTAIN INC IRM JANUS CAPITAL MANAGEMENT LLC 7.2% view
B 2012-02-09 13:12:28.0 IRON MOUNTAIN INC IRM BlackRock Inc 5.05% view
B 2012-02-08 13:46:34.0 IRON MOUNTAIN INC IRM VANGUARD GROUP INC 5.94% view
S 2012-02-02 14:23:44.0 IRON MOUNTAIN INC IRM DAVIS SELECTED ADVISERS 16.7% view
S 2011-12-22 14:22:13.0 IRON MOUNTAIN INC IRM DAVIS SELECTED ADVISERS 17.7% view
S 2011-12-06 15:59:07.0 IRON MOUNTAIN INC IRM DAVIS SELECTED ADVISERS 18.8% view
B 2011-04-01 17:27:41.0 IRON MOUNTAIN INC IRM DAVIS SELECTED ADVISERS 21.1% view
S 2011-02-14 09:13:44.0 IRON MOUNTAIN INC IRM DAVIS SELECTED ADVISERS 19.46% view
S 2011-02-11 19:31:13.0 IRON MOUNTAIN INC IRM Capital World Investors 4.3% view
B 2011-02-11 17:04:31.0 IRON MOUNTAIN INC IRM RYAN VINCENT J 7.9% view
B 2011-01-25 11:49:48.0 IRON MOUNTAIN INC IRM BAILLIE GIFFORD & CO 12.0% view
S 2010-02-10 19:01:42.0 IRON MOUNTAIN INC IRM Capital World Investors 7.0% view
S 2010-02-08 14:44:27.0 IRON MOUNTAIN INC IRM RYAN VINCENT J 7.8% view
B 2010-02-08 10:52:43.0 IRON MOUNTAIN INC IRM BAILLIE GIFFORD & CO 5.77% view
S 2009-02-17 11:23:02.0 IRON MOUNTAIN INC IRM RYAN VINCENT J 8.4% view
B 2009-02-12 19:06:56.0 IRON MOUNTAIN INC IRM Capital World Investors 9.1% view
B 2008-02-14 12:07:56.0 IRON MOUNTAIN INC IRM WELLINGTON MANAGEMENT CO LLP 6.19% view
S 2008-02-13 17:07:22.0 IRON MOUNTAIN INC IRM RYAN VINCENT J 8.4% view
B 2008-02-12 11:15:43.0 IRON MOUNTAIN INC IRM DAVIS SELECTED ADVISERS 20.11% view
B 2008-02-11 14:19:26.0 IRON MOUNTAIN INC IRM Capital World Investors 5.9% view
S 2007-02-22 16:18:37.0 IRON MOUNTAIN INC IRM DAVIS SELECTED ADVISERS n/a view
S 2007-02-14 15:23:47.0 IRON MOUNTAIN INC IRM RYAN VINCENT J 8.5% view
S 2007-02-13 21:39:43.0 IRON MOUNTAIN INC IRM PRICE T ROWE ASSOCIATES INC 3.5% view
B 2006-03-17 00:00:00.0 IRON MOUNTAIN INC IRM DAVIS SELECTED ADVISERS n/a view
S 2006-02-14 00:00:00.0 IRON MOUNTAIN INC IRM PRICE T ROWE ASSOCIATES INC 5.2% view
S 2006-02-13 00:00:00.0 IRON MOUNTAIN INC IRM RYAN VINCENT J 9.0% view
S 2005-02-17 00:00:00.0 IRON MOUNTAIN INC IRM SMITH THOMAS W 5.8% view
B 2005-02-14 00:00:00.0 IRON MOUNTAIN INC IRM BERKSHIRE HATHAWAY INC 3.86% view
S 2005-02-14 00:00:00.0 IRON MOUNTAIN INC IRM RYAN VINCENT J 9.0% view
S 2005-02-14 00:00:00.0 IRON MOUNTAIN INC IRM PRICE T ROWE ASSOCIATES INC 6.4% view
S 2005-02-14 00:00:00.0 IRON MOUNTAIN INC IRM CHIEFTAIN CAPITAL MANAGEMENT INC 4.6% view
S 2004-11-09 00:00:00.0 IRON MOUNTAIN INC IRM CHIEFTAIN CAPITAL MANAGEMENT INC 7.0% view
S 2004-03-11 00:00:00.0 IRON MOUNTAIN INC IRM SMITH THOMAS W 6.2% view
S 2004-02-13 00:00:00.0 IRON MOUNTAIN INC IRM RYAN VINCENT J 9.0% view
S 2004-02-13 00:00:00.0 IRON MOUNTAIN INC IRM CHIEFTAIN CAPITAL MANAGEMENT INC 13.2% view
S 2004-02-05 00:00:00.0 IRON MOUNTAIN INC IRM PRICE T ROWE ASSOCIATES INC 6.9% view
B 2003-02-14 00:00:00.0 IRON MOUNTAIN INC IRM BERKSHIRE HATHAWAY INC 2.0% view
B 2003-02-14 00:00:00.0 IRON MOUNTAIN INC IRM RYAN VINCENT J 9.0% view
B 2003-02-14 00:00:00.0 IRON MOUNTAIN INC IRM CHIEFTAIN CAPITAL MANAGEMENT INC 14.8% view
B 2003-02-03 00:00:00.0 IRON MOUNTAIN INC IRM PRICE T ROWE ASSOCIATES INC 9.0% view
S 2002-11-12 00:00:00.0 IRON MOUNTAIN INC IRM SMITH THOMAS W 6.4% view
S 2002-03-01 00:00:00.0 IRON MOUNTAIN INC IRM PIERCE J PETER 3.1% view
S 2002-02-22 00:00:00.0 IRON MOUNTAIN INC IRM PRICE T ROWE ASSOCIATES INC 8.6% view
S 2002-02-14 00:00:00.0 IRON MOUNTAIN INC IRM PIERCE J PETER 3.1% view
B 2002-02-12 00:00:00.0 IRON MOUNTAIN INC IRM WELLINGTON MANAGEMENT CO LLP 1.99% view
B 2002-02-12 00:00:00.0 IRON MOUNTAIN INC IRM CHIEFTAIN CAPITAL MANAGEMENT INC 13.3% view
S 2002-02-11 00:00:00.0 IRON MOUNTAIN INC IRM SCHOONER CAPITAL CORP 4.9% view
B 2002-02-06 00:00:00.0 IRON MOUNTAIN INC IRM PRICE T ROWE ASSOCIATES INC 8.6% view
B 2001-10-10 00:00:00.0 IRON MOUNTAIN INC IRM CHIEFTAIN CAPITAL MANAGEMENT INC 12.5% view
B 2001-02-14 00:00:00.0 IRON MOUNTAIN INC IRM SCHOONER CAPITAL CORP 5.0% view
S 2001-02-14 00:00:00.0 IRON MOUNTAIN INC IRM PIERCE J PETER 10.6% view
B 2001-02-08 00:00:00.0 IRON MOUNTAIN INC IRM PRICE T ROWE ASSOCIATES INC 7.1% view
B 2000-02-14 00:00:00.0 IRON MOUNTAIN INC IRM SMITH THOMAS W 13.9% view
S 2000-02-14 00:00:00.0 IRON MOUNTAIN INC IRM PIERCE LEO W JR 5.1% view
S 2000-02-14 00:00:00.0 IRON MOUNTAIN INC IRM BUCKLEY CONSTANCE 4.3% view
S 2000-02-14 00:00:00.0 IRON MOUNTAIN INC IRM PIERCE J PETER 38.7% view
S 2000-02-14 00:00:00.0 IRON MOUNTAIN INC IRM PIERCE MICHAEL 4.2% view
S 2000-02-14 00:00:00.0 IRON MOUNTAIN INC IRM QUINN BARBARA 5.0% view
S 2000-02-14 00:00:00.0 IRON MOUNTAIN INC IRM PIERCE MARY 6.3% view
S 2000-02-14 00:00:00.0 IRON MOUNTAIN INC IRM PIERCE LEO W SR 39.5% view
S 2000-02-10 00:00:00.0 IRON MOUNTAIN INC IRM PALISADE CAPITAL MANAGEMENT LLC 1.4% view
S 1999-02-17 00:00:00.0 PIERCE LEAHY CORP IRM COOPERMAN WAYNE M & SANDLER RICKY C 2.42% view
S 1999-02-16 00:00:00.0 PIERCE LEAHY CORP IRM PIERCE MICHAEL 6.6% view
S 1999-02-16 00:00:00.0 PIERCE LEAHY CORP IRM PIERCE MARY 8.2% view
S 1999-02-16 00:00:00.0 PIERCE LEAHY CORP IRM QUINN BARBARA 6.3% view
S 1999-02-16 00:00:00.0 PIERCE LEAHY CORP IRM PIERCE LEO W JR 6.9% view
S 1999-02-16 00:00:00.0 PIERCE LEAHY CORP IRM PIERCE J PETER 48.6% view
S 1999-02-16 00:00:00.0 PIERCE LEAHY CORP IRM PIERCE LEO W SR 49.0% view
S 1999-02-16 00:00:00.0 PIERCE LEAHY CORP IRM BUCKLEY CONSTANCE 6.4% view
B 1999-02-04 00:00:00.0 PIERCE LEAHY CORP IRM PALISADE CAPITAL MANAGEMENT LLC 6.9% view
B 1999-01-19 00:00:00.0 PIERCE LEAHY CORP IRM SMITH THOMAS W 12.4% view
B 1998-11-27 00:00:00.0 PIERCE LEAHY CORP IRM COOPERMAN WAYNE M & SANDLER RICKY C 5.22% view
B 1998-09-17 00:00:00.0 PIERCE LEAHY CORP IRM FUSION CAPITAL MANAGEMENT 5.21% view
B 1998-03-17 00:00:00.0 PIERCE LEAHY CORP IRM SMITH THOMAS W 6.9% view
B 1998-02-17 00:00:00.0 PIERCE LEAHY CORP IRM QUINN BARBARA 9.6% view
B 1998-02-17 00:00:00.0 PIERCE LEAHY CORP IRM PIERCE J PETER 56.7% view
B 1998-02-17 00:00:00.0 PIERCE LEAHY CORP IRM PIERCE LEO W JR 8.5% view
B 1998-02-17 00:00:00.0 PIERCE LEAHY CORP IRM BUCKLEY CONSTANCE 7.4% view
B 1998-02-17 00:00:00.0 PIERCE LEAHY CORP IRM PIERCE LEO W SR 56.7% view
B 1998-02-17 00:00:00.0 PIERCE LEAHY CORP IRM PIERCE MICHAEL 7.3% view
B 1998-02-17 00:00:00.0 PIERCE LEAHY CORP IRM PIERCE MARY 8.5% view
B 1998-01-26 00:00:00.0 PIERCE LEAHY CORP IRM SMITH THOMAS W 6.1% view
* Institutions do not report transaction buy/sell types directly. To help members better understand the transactions, this column is filled by InsiderCow's best-effort interpretations.