Iron MountainIRM
13F holders, Q1 2024 (March 31)936holders
7famous investors
$80.08avg. 13F price*
At the end of Q1 2024, 936 institutions reported holding Iron Mountain Inc. (IRM) in their 13F filings. The largest holders were Vanguard Group Inc. ($3.7B), Cohen & Steers, Inc. ($1.9B) and BlackRock Inc. ($1.9B). 7 famous investors held it, including Steve Cohen (0.2% of Point72 Asset Management's portfolio), Ken Griffin (0.1% of Citadel Advisors's portfolio) and Israel Englander (0.1% of Millennium Management's portfolio).
- Company
- Iron Mountain Inc.
- Filed as
- IRON MTN INC DEL (Q1 2024)
- Sector
- Real Estate
- CUSIP
- 46284V101
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2024
| Institutions | Total Value | |
|---|---|---|
| New Positions | 109 | $163.3M |
| Exits | 66 | $58.6M |
Ownership 936 holders
| Vanguard Group Inc. | 0.07% | Add +0.2% | 46,377,234 | $3.7B |
| Cohen & Steers, Inc. | 3.97% | Add +5.3% | 23,655,038 | $1.9B |
| BlackRock Inc. | 0.04% | Reduce -0.7% | 23,108,831 | $1.9B |
| State Street Corp. | 0.05% | Add +0.1% | 13,811,808 | $1.1B |
| Geode Capital Management, LLC | 0.05% | Add +3.6% | 7,320,486 | $587.1M |
| Daiwa Securities Group Inc. | 2.10% | Add +11.6% | 4,562,165 | $365.9M |
| Dimensional Fund Advisors LP | 0.09% | Reduce -0.0% | 4,286,593 | $343.8M |
| Capital World Investors | 0.05% | Reduce -0.0% | 4,116,123 | $330.2M |
| Deutsche Bank AG | 0.14% | Reduce -17.7% | 3,852,147 | $309.0M |
| Morgan Stanley | 0.02% | Reduce -6.2% | 3,458,435 | $277.4M |
| Norges Bank | 0.04% | Add +2.3% | 3,338,601 | $267.8M |
| Charles Schwab Investment Management Inc. | 0.06% | Add +2.1% | 3,225,161 | $258.7M |
| Pictet Asset Management Holding SA | 0.27% | Reduce -8.8% | 3,088,633 | $247.7M |
| FMR LLC | 0.02% | Reduce -15.7% | 2,968,422 | $238.1M |
| Northern Trust Corp. | 0.04% | Reduce -6.9% | 2,915,624 | $233.9M |
| Amundi | 0.10% | Add +22.0% | 2,977,334 | $221.6M |
| Wellington Management Group LLP | 0.04% | Reduce -9.6% | 2,648,454 | $212.4M |
| JPMorgan Chase & Co. | 0.02% | Add +17.2% | 2,455,076 | $196.9M |
| Legal & General Group Plc | 0.05% | Add +0.5% | 2,163,415 | $173.5M |
| Bank of New York Mellon Corp | 0.03% | Reduce -5.2% | 2,119,675 | $170.0M |
| Invesco Ltd. | 0.03% | Reduce -41.2% | 2,010,493 | $161.3M |
| Russell Investments Group, Ltd. | 0.25% | Reduce -3.6% | 2,006,989 | $161.0M |
| Prudential Financial Inc. | 0.21% | Reduce -16.4% | 1,862,942 | $149.4M |
| Epoch Investment Partners, Inc. | 0.60% | Reduce -14.7% | 1,686,218 | $135.3M |
| Nuveen Asset Management, LLC | 0.04% | Add +101.2% | 1,590,237 | $127.7M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.04% | Reduce -5.5% | 1,542,167 | $123.7M |
| Centersquare Investment Management LLC | 1.38% | Add +7892.6% | 1,538,486 | $119.3M |
| Ameriprise Financial Inc. | 0.03% | Reduce -7.8% | 1,471,946 | $118.9M |
| Bank of America Corp. | 0.01% | Add +15.1% | 1,321,226 | $106.0M |
| Agf Management Ltd. | 0.57% | Add +28.5% | 1,273,292 | $102.1M |
| Citadel Advisors | 0.10% | Reduce -35.9% | 1,271,739 | $102.0M |
| DekaBank Deutsche Girozentrale | 0.17% | Reduce -1.4% | 1,126,012 | $90.8M |
| CIBC Private Wealth Group LLC | 0.16% | Reduce -2.0% | 1,056,807 | $84.1M |
| UBS Group AG | 0.03% | Add +21.4% | 1,000,897 | $80.3M |
| Millennium Management | 0.07% | Add +1480.3% | 958,517 | $76.9M |
| Sumitomo Mitsui Trust Group, Inc. | 0.05% | Reduce -0.7% | 956,189 | $76.7M |
| Sei Investments Co. | 0.11% | Add +7.8% | 943,728 | $75.7M |
| Heitman Real Estate Securities LLC | 4.29% | Add +46.2% | 939,333 | $75.3M |
| Canada Pension Plan Investment Board | 0.08% | Reduce -5.3% | 896,990 | $71.9M |
| Duff & Phelps Investment Management Co. | 0.86% | Add +1497.5% | 895,705 | $71.8M |
| Swiss National Bank | 0.05% | Reduce -4.2% | 874,461 | $70.1M |
| Captrust Financial Advisors | 0.25% | Add +3.9% | 856,945 | $68.7M |
| Point72 Asset Management | 0.20% | Add +30.4% | 833,604 | $66.9M |
| Goldman Sachs Group Inc. | 0.01% | Reduce -12.7% | 820,313 | $65.8M |
| American Century Companies Inc. | 0.04% | Add +7.5% | 784,056 | $62.9M |
| Welch & Forbes LLC | 0.80% | Reduce -0.5% | 727,641 | $58.4M |
| Wells Fargo & Company | 0.02% | Add +9.5% | 717,300 | $57.5M |
| Voloridge Investment Management, LLC | 0.20% | Add +10.6% | 686,771 | $55.1M |
| Neuberger Berman Group LLC | 0.05% | Add +7.6% | 686,367 | $55.1M |
| Rockefeller Capital Management L.P. | 0.15% | Reduce -15.3% | 662,217 | $53.1M |
| Rhumbline Advisers | 0.05% | Add +0.1% | 637,535 | $51.1M |
| T. Rowe Price Associates Inc. | 0.01% | Add +22.9% | 592,773 | $47.5M |
| HSBC Holdings PLC | 0.03% | Add +40.0% | 587,382 | $47.1M |
| Barclays PLC | 0.02% | Reduce -24.0% | 586,904 | $47.1M |
| Asset Management One Co., Ltd. | 0.18% | Reduce -1.6% | 580,202 | $46.5M |
| Bank of Montreal | 0.01% | Reduce -4.6% | 580,181 | $46.5M |
| Border to Coast Pensions Partnership Ltd | 1.00% | No change | 561,040 | $45.0M |
| California Public Employees Retirement System | 0.03% | Reduce -2.6% | 540,387 | $43.3M |
| Envestnet Asset Management Inc. | 0.02% | Add +36.9% | 519,347 | $41.7M |
| Mitsubishi UFJ Asset Management Co., Ltd. | 0.06% | Add +11.4% | 515,260 | $41.3M |
| Credit Suisse AG/ | 0.04% | Reduce -5.2% | 505,639 | $40.6M |
| California State Teachers Retirement System | 0.05% | Add +1.5% | 467,973 | $37.5M |
| Stifel Financial Corp. | 0.04% | Reduce -3.3% | 461,744 | $37.0M |
| LPL Financial LLC | 0.02% | Reduce -11.7% | 458,001 | $36.7M |
| Marble Harbor Investment Counsel, LLC | 4.12% | Reduce -1.6% | 446,081 | $35.8M |
| Nomura Asset Management Co. Ltd. | 0.12% | Add +2.9% | 424,782 | $34.1M |
| National Pension Service | 0.04% | Add +0.8% | 417,128 | $33.5M |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 0.09% | Reduce -31.4% | 408,068 | $32.7M |
| Cookson Peirce & Co. Inc. | 1.70% | Reduce -0.2% | 397,999 | $31.9M |
| BNP Paribas Financial Markets | 0.04% | Add +77.5% | 397,036 | $31.8M |
| Alliancebernstein L.P. | 0.01% | Reduce -7.9% | 375,285 | $30.1M |
| CANADA LIFE ASSURANCE Co | 0.06% | Add +0.5% | 362,134 | $29.1M |
| Blair William & Co. | 0.09% | Add +3.0% | 349,411 | $28.0M |
| Raymond James & Associates | 0.02% | Add +2.4% | 348,798 | $28.0M |
| Principal Financial Group Inc. | 0.02% | Add +3.0% | 347,264 | $27.9M |
| Royal Bank of Canada | 0.01% | Reduce -32.4% | 341,557 | $27.4M |
| Aviva PLC | 0.09% | Add +1.3% | 338,646 | $27.2M |
| Adell Harriman & Carpenter Inc. | 2.16% | Add +0.8% | 327,558 | $26.3M |
| Robeco Institutional Asset Management B.V. | 0.05% | Add +612.6% | 300,385 | $24.1M |
| Andra AP-fonden | 0.42% | Add +136.9% | 294,974 | $23.7M |
| Pacer Advisors, Inc. | 0.06% | Reduce -22.9% | 292,913 | $23.5M |
| New York State Teachers Retirement System | 0.05% | Reduce -3.0% | 287,599 | $23.1M |
| Adage Capital Partners Gp, L.L.C. | 0.04% | Add +0.9% | 286,352 | $23.0M |
| TD Asset Management Inc | 0.02% | Reduce -4.2% | 279,875 | $22.4M |
| New York State Common Retirement Fund | 0.03% | Reduce -7.1% | 272,121 | $21.8M |
| Polar Asset Management Partners Inc. | 0.76% | Add +88.2% | 264,600 | $21.2M |
| Waterfront Capital Partners, LLC | 1.91% | New | 255,000 | $20.5M |
| Eventide Asset Management, LLC | 0.31% | New | 247,702 | $19.9M |
| Mirae Asset Global Investments Co., Ltd. | 0.04% | Add +2.6% | 356,750 | $19.8M |
| Corient Private Wealth LP | 0.04% | Reduce -20.2% | 246,717 | $19.8M |
| United Bank | 2.36% | Reduce -14.4% | 246,489 | $19.8M |
| Swedbank AB | 0.03% | Add +3.7% | 242,425 | $19.4M |
| Retirement Systems of Alabama | 0.07% | Add +0.0% | 241,416 | $19.4M |
| Crossmark Global Holdings, Inc. | 0.37% | Reduce -3.3% | 239,889 | $19.2M |
| Citigroup Inc. | 0.02% | Add +50.0% | 236,098 | $18.9M |
| First Trust Advisors LP | 0.02% | Reduce -5.7% | 234,893 | $18.8M |
| Aberdeen Group plc | 0.04% | Add +2.4% | 233,340 | $18.7M |
| Dana Investment Advisors, Inc. | 0.62% | Reduce -9.2% | 231,050 | $18.5M |
| Cetera Investment Advisers | 0.04% | Add +709.0% | 229,863 | $18.4M |
| Pinebridge Investments, L.P. | 0.15% | New | 228,192 | $18.3M |
"% of holder's portfolio" is IRM's weight in each manager's 13F, not the share of Iron Mountain Inc. the manager owns.