IRM
IRON MOUNTAIN INCCompany with tickers: IRM
CIK
1020569
CUSIP
46284V101
Shares Outstanding
297,478,817
Price
Holdings
Short Volume
Short Interest
Fails to Deliver
SEC Filings
Earnings Calls
Insider Trading
Congress Trades
Report Date:
Holders: 984
Total Value: $17,190,101,167
Total Shares: 207,234,500
Showing top 100 of 984 holders by value
| Holder | Value (USD) | Shares | Type | Discretion | Filed | Action |
|---|---|---|---|---|---|---|
| BlackRock, Inc. | $2,730,685,620 | 32,919,658 | Shares | Sole | 2026-02-12 | View |
| COHEN & STEERS, INC. | $1,568,063,242 | 18,903,716 | Shares | Sole | 2026-02-13 | View |
| STATE STREET CORP | $1,400,925,794 | 16,888,798 | Shares | Defined | 2026-02-13 | View |
| GEODE CAPITAL MANAGEMENT, LLC | $687,875,565 | 8,292,653 | Shares | Defined | 2026-02-09 | View |
| FMR LLC | $662,298,014 | 7,984,304 | Shares | Defined | 2026-02-17 | View |
| NORGES BANK | $368,889,682 | 4,447,133 | Shares | Sole | 2026-02-10 | View |
| DIMENSIONAL FUND ADVISORS LP | $367,415,326 | 4,429,359 | Shares | Sole | 2026-02-12 | View |
| Invesco Ltd. | $366,420,586 | 4,417,367 | Shares | Defined | 2026-02-19 | View |
| PRINCIPAL FINANCIAL GROUP INC | $349,020,086 | 4,207,596 | Shares | Defined | 2026-02-02 | View |
| NORTHERN TRUST CORP | $344,455,592 | 4,152,569 | Shares | Other | 2026-02-17 | View |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $321,868,811 | 3,880,275 | Shares | Sole | 2026-02-13 | View |
| Daiwa Securities Group Inc. | $303,106,432 | 3,654,086 | Shares | Sole | 2026-02-11 | View |
| Legal & General Group Plc | $278,415,037 | 3,356,420 | Shares | Defined | 2026-02-09 | View |
| Contour Asset Management LLC | $234,929,496 | 2,832,182 | Shares | Sole | 2026-02-17 | View |
| CENTERSQUARE INVESTMENT MANAGEMENT LLC | $218,279,024 | 2,631,453 | Shares | Defined | 2026-02-12 | View |
| DEUTSCHE BANK AG\ | $210,858,229 | 2,541,992 | Shares | Defined | 2026-02-11 | View |
| PRUDENTIAL FINANCIAL INC | $191,654,398 | 2,310,481 | Shares | Defined | 2026-02-13 | View |
| Pictet Asset Management Holding SA | $190,450,296 | 2,295,965 | Shares | Sole | 2026-01-29 | View |
| Nuveen, LLC | $176,511,875 | 2,127,931 | Shares | Defined | 2026-02-12 | View |
| Capital World Investors | $175,619,168 | 2,117,169 | Shares | Defined | 2026-02-11 | View |
| JPMORGAN CHASE & CO | $159,922,200 | 1,927,935 | Shares | Other | 2026-02-11 | View |
| AMERIPRISE FINANCIAL INC | $144,698,392 | 1,744,405 | Shares | Defined | 2026-02-17 | View |
| Vontobel Holding Ltd. | $140,122,953 | 1,689,246 | Shares | Defined | 2026-02-13 | View |
| Bank of New York Mellon Corp | $139,851,866 | 1,685,978 | Shares | Defined | 2026-02-10 | View |
| PGGM Investments | $137,461,339 | 1,657,159 | Shares | Sole | 2026-02-09 | View |
| DUFF & PHELPS INVESTMENT MANAGEMENT CO | $131,098,493 | 1,580,452 | Shares | Other | 2026-01-26 | View |
| MORGAN STANLEY | $127,373,456 | 1,535,545 | Shares | Defined | 2026-02-13 | View |
| GOLDMAN SACHS GROUP INC | $126,462,168 | 1,524,559 | Shares | Defined | 2026-02-10 | View |
| BANK OF AMERICA CORP /DE/ | $125,283,114 | 1,510,345 | Shares | Defined | 2026-02-17 | View |
| CBRE CLARION SECURITIES LLC | $119,995,221 | 1,446,597 | Shares | Defined | 2026-02-10 | View |
| Russell Investments Group, Ltd. | $116,607,786 | 1,405,760 | Shares | Other | 2026-02-17 | View |
| AMUNDI | $110,629,833 | 1,333,693 | Shares | Defined | 2026-02-17 | View |
| ROYAL BANK OF CANADA | $106,662,997 | 1,285,871 | Shares | Defined | 2026-02-17 | View |
| DekaBank Deutsche Girozentrale | $93,111,375 | 1,122,500 | Shares | Defined | 2026-01-28 | View |
| CITADEL ADVISORS LLC | $92,851,824 | 1,119,371 | Shares | Defined | 2026-02-17 | View |
| SEI INVESTMENTS CO | $84,995,878 | 1,024,664 | Shares | Sole | 2026-02-13 | View |
| AQR CAPITAL MANAGEMENT LLC | $76,579,105 | 923,196 | Shares | Other | 2026-02-17 | View |
| Sumitomo Mitsui Trust Holdings, Inc. | $75,226,359 | 906,888 | Shares | Defined | 2026-01-23 | View |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | $69,641,999 | 839,566 | Shares | Defined | 2026-02-03 | View |
| Swiss National Bank | $67,128,199 | 809,261 | Shares | Sole | 2026-02-12 | View |
| UBS Group AG | $66,020,567 | 795,908 | Shares | Defined | 2026-01-29 | View |
| Point72 Asset Management, L.P. | $65,572,306 | 790,504 | Shares | Defined | 2026-02-17 | View |
| BARCLAYS PLC | $60,458,687 | 728,857 | Shares | Sole | 2026-02-13 | View |
| CIBC Private Wealth Group, LLC | $56,211,149 | 677,651 | Shares | Defined | 2026-02-12 | View |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | $54,485,873 | 656,852 | Shares | Sole | 2026-02-17 | View |
| WELCH & FORBES LLC | $54,445,393 | 656,364 | Shares | Sole | 2026-02-10 | View |
| WELLS FARGO & COMPANY/MN | $52,861,710 | 637,272 | Shares | Defined | 2026-02-13 | View |
| LPL Financial LLC | $52,656,577 | 634,799 | Shares | Sole | 2026-02-11 | View |
| Epoch Investment Partners, Inc. | $52,246,388 | 629,854 | Shares | Defined | 2026-02-13 | View |
| Universal- Beteiligungs- und Servicegesellschaft mbH | $51,880,579 | 625,444 | Shares | Defined | 2026-01-28 | View |
| PRICE T ROWE ASSOCIATES INC /MD/ | $50,338,953 | 606,859 | Shares | Sole | 2026-02-17 | View |
| RHUMBLINE ADVISERS | $48,985,293 | 590,540 | Shares | Sole | 2026-02-13 | View |
| APG Asset Management US Inc. | $48,291,333 | 582,174 | Shares | Defined | 2026-02-12 | View |
| BNP PARIBAS ARBITRAGE, SA | $46,638,886 | 562,253 | Shares | Defined | 2026-02-10 | View |
| Asset Management One Co., Ltd. | $46,118,043 | 555,974 | Shares | Defined | 2026-01-27 | View |
| ALLIANCEBERNSTEIN L.P. | $45,191,989 | 544,810 | Shares | Defined | 2026-02-17 | View |
| NOMURA ASSET MANAGEMENT CO LTD | $45,164,864 | 544,483 | Shares | Sole | 2026-02-10 | View |
| CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM | $42,599,387 | 513,555 | Shares | Sole | 2026-02-12 | View |
| National Pension Service | $42,223,209 | 509,020 | Shares | Sole | 2026-02-10 | View |
| Border to Coast Pensions Partnership Ltd | $41,475,000 | 500,000 | Shares | Sole | 2026-01-26 | View |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | $41,123,291 | 495,760 | Shares | Defined | 2026-02-17 | View |
| HEITMAN REAL ESTATE SECURITIES LLC | $40,690,956 | 490,548 | Shares | Defined | 2026-02-13 | View |
| MILLENNIUM MANAGEMENT LLC | $40,563,711 | 489,014 | Shares | Sole | 2026-02-17 | View |
| BANK OF MONTREAL /CAN/ | $36,194,815 | 436,345 | Shares | Defined | 2026-02-12 | View |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | $36,009,009 | 434,105 | Shares | Sole | 2026-02-17 | View |
| Neuberger Berman Group LLC | $35,783,468 | 431,386 | Shares | Defined | 2026-02-13 | View |
| STRS OHIO | $34,351,917 | 414,128 | Shares | Sole | 2026-02-02 | View |
| AMERICAN CENTURY COMPANIES INC | $32,839,324 | 395,893 | Shares | Defined | 2026-02-13 | View |
| RAYMOND JAMES FINANCIAL INC | $30,385,330 | 366,309 | Shares | Defined | 2026-02-18 | View |
| Standard Life Aberdeen plc | $30,267,541 | 364,889 | Shares | Defined | 2026-01-16 | View |
| Adelante Capital Management LLC | $28,138,879 | 339,227 | Shares | Sole | 2026-02-18 | View |
| GREAT WEST LIFE ASSURANCE CO /CAN/ | $27,948,758 | 336,935 | Shares | Sole | 2026-02-13 | View |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | $27,746,775 | 334,500 | Shares | Other | 2026-02-17 | View |
| TEACHER RETIREMENT SYSTEM OF TEXAS | $27,702,894 | 333,971 | Shares | Sole | 2026-01-28 | View |
| SOROS FUND MANAGEMENT LLC | $27,182,715 | 327,700 | Shares | Sole | 2026-02-13 | View |
| CITIGROUP INC | $26,427,952 | 318,601 | Shares | Defined | 2026-02-13 | View |
| ADELL HARRIMAN & CARPENTER INC | $26,097,480 | 314,617 | Shares | Sole | 2026-02-06 | View |
| Marble Harbor Investment Counsel, LLC | $26,047,959 | 314,020 | Shares | Sole | 2026-02-06 | View |
| MACQUARIE GROUP LTD | $24,303,685 | 292,992 | Shares | Sole | 2026-02-13 | View |
| TWO SIGMA INVESTMENTS, LP | $24,068,772 | 290,160 | Shares | Sole | 2026-02-17 | View |
| Apollo Management Holdings, L.P. | $22,026,460 | 265,539 | Shares | Defined | 2026-02-17 | View |
| STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM | $21,775,619 | 262,515 | Shares | Sole | 2026-02-12 | View |
| CI Private Wealth, LLC | $21,753,968 | 262,254 | Shares | Sole | 2026-02-19 | View |
| AVIVA PLC | $21,245,568 | 256,125 | Shares | Defined | 2026-02-12 | View |
| CAPTRUST FINANCIAL ADVISORS | $21,164,028 | 255,142 | Shares | Sole | 2026-02-17 | View |
| Cetera Investment Advisers | $20,621,121 | 248,597 | Shares | Sole | 2026-02-17 | View |
| Americana Partners, LLC | $20,019,899 | 241,349 | Shares | Sole | 2026-02-06 | View |
| BLAIR WILLIAM & CO/IL | $19,765,740 | 238,285 | Shares | Sole | 2026-02-17 | View |
| Brookstone Capital Management | $19,570,642 | 235,933 | Shares | Sole | 2026-01-15 | View |
| Retirement Systems of Alabama | $18,918,489 | 228,071 | Shares | Sole | 2026-01-15 | View |
| NEW YORK STATE TEACHERS RETIREMENT SYSTEM | $18,902,314 | 227,876 | Shares | Sole | 2026-01-30 | View |
| Colony Group, LLC | $18,076,049 | 217,915 | Shares | Sole | 2026-02-13 | View |
| Schonfeld Strategic Advisors LLC | $17,361,435 | 209,300 | Shares | Sole | 2026-02-17 | View |
| Verition Fund Management LLC | $17,332,485 | 208,951 | Shares | Sole | 2026-02-13 | View |
| CIBC World Markets Inc. | $17,256,586 | 208,036 | Shares | Sole | 2026-02-10 | View |
| Balyasny Asset Management LLC | $17,154,806 | 206,809 | Shares | Sole | 2026-02-17 | View |
| Zurcher Kantonalbank (Zurich Cantonalbank) | $17,034,694 | 205,361 | Shares | Sole | 2026-01-27 | View |
| Cander Asset Management LP | $16,817,117 | 202,738 | Shares | Sole | 2026-02-17 | View |
| Andra AP-fonden | $16,697,835 | 201,300 | Shares | Sole | 2026-02-12 | View |
| VICTORY CAPITAL MANAGEMENT INC | $16,510,036 | 199,036 | Shares | Sole | 2026-02-13 | View |