Iron MountainIRM
13F holders, Q2 2024 (June 30)965holders +29
93new positions
62sold out
4famous investors
$89.62avg. 13F price*
At the end of Q2 2024, 965 institutions reported holding Iron Mountain Inc. (IRM) in their 13F filings, up 29 from Q1 2024. 93 opened new positions and 62 sold out. The largest holders were Vanguard Group Inc. ($4.2B), BlackRock Inc. ($2.5B) and Cohen & Steers, Inc. ($2.1B). 4 famous investors held it, including Joel Greenblatt (0.1% of Gotham Asset Management's portfolio), Cliff Asness (0.0% of AQR Capital Management's portfolio) and Israel Englander (0.0% of Millennium Management's portfolio).
- Company
- Iron Mountain Inc.
- Filed as
- IRON MTN INC DEL (Q2 2024)
- Sector
- Real Estate
- CUSIP
- 46284V101
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2024 → Q2 2024
| Institutions | Total Value | |
|---|---|---|
| New Positions | 93 | $134.1M |
| Exits | 62 | $239.9M |
All 13F filers, Q1 2024 → Q2 2024: 23,027,116 shares bought and 11,836,918 shares sold, net +11,190,198 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 965 holders
| Vanguard Group Inc. | 0.08% | Add +0.6% | 46,643,352 | $4.2B |
| BlackRock Inc. | 0.06% | Add +20.7% | 27,891,960 | $2.5B |
| Cohen & Steers, Inc. | 4.33% | Reduce -2.5% | 23,051,016 | $2.1B |
| State Street Corp. | 0.07% | Add +26.8% | 17,516,178 | $1.6B |
| Geode Capital Management, LLC | 0.06% | Add +11.1% | 8,129,343 | $728.9M |
| Daiwa Securities Group Inc. | 2.19% | Reduce -1.0% | 4,517,699 | $404.9M |
| Dimensional Fund Advisors LP | 0.10% | Reduce -0.0% | 4,286,068 | $384.1M |
| Capital World Investors | 0.06% | Add +0.0% | 4,116,146 | $368.9M |
| Deutsche Bank AG | 0.16% | Add +1.9% | 3,923,723 | $351.6M |
| Morgan Stanley | 0.03% | Add +5.7% | 3,655,486 | $327.6M |
| Legal & General Group Plc | 0.09% | Add +59.6% | 3,453,291 | $309.5M |
| Wellington Management Group LLP | 0.05% | Add +27.6% | 3,379,577 | $302.9M |
| FMR LLC | 0.02% | Add +10.9% | 3,293,020 | $295.1M |
| Charles Schwab Investment Management Inc. | 0.06% | Add +0.6% | 3,244,640 | $290.8M |
| Norges Bank | 0.04% | Reduce -3.0% | 3,238,615 | $290.2M |
| Northern Trust Corp. | 0.04% | Add +1.8% | 2,968,422 | $266.0M |
| Pictet Asset Management Holding SA | 0.28% | Reduce -12.2% | 2,712,745 | $243.1M |
| Centersquare Investment Management LLC | 2.34% | Add +56.6% | 2,409,602 | $215.9M |
| Amundi | 0.08% | Reduce -24.4% | 2,250,829 | $206.6M |
| Invesco Ltd. | 0.04% | Add +12.3% | 2,257,536 | $202.3M |
| Agf Management Ltd. | 1.12% | Add +76.3% | 2,245,393 | $201.2M |
| Russell Investments Group, Ltd. | 0.32% | Add +8.6% | 2,178,969 | $195.2M |
| JPMorgan Chase & Co. | 0.02% | Reduce -13.0% | 2,135,256 | $191.4M |
| Bank of New York Mellon Corp | 0.04% | Add +0.3% | 2,126,237 | $190.6M |
| Prudential Financial Inc. | 0.28% | Add +12.8% | 2,102,156 | $188.4M |
| Nuveen Asset Management, LLC | 0.04% | Add +5.7% | 1,680,899 | $150.9M |
| Goldman Sachs Group Inc. | 0.03% | Add +96.9% | 1,615,304 | $144.8M |
| Epoch Investment Partners, Inc. | 0.65% | Reduce -6.3% | 1,579,482 | $141.6M |
| Ameriprise Financial Inc. | 0.03% | Reduce -4.2% | 1,409,491 | $127.2M |
| Bank of America Corp. | 0.01% | Reduce -0.7% | 1,312,594 | $117.6M |
| Duff & Phelps Investment Management Co. | 1.48% | Add +45.0% | 1,298,330 | $116.4M |
| DekaBank Deutsche Girozentrale | 0.19% | Add +5.0% | 1,182,515 | $105.3M |
| Sei Investments Co. | 0.14% | Add +19.3% | 1,125,491 | $100.9M |
| CIBC Private Wealth Group LLC | 0.18% | Reduce -0.7% | 1,049,216 | $97.4M |
| Captrust Financial Advisors | 0.26% | Add +5.5% | 904,225 | $81.0M |
| Sumitomo Mitsui Trust Group, Inc. | 0.06% | Reduce -5.5% | 903,856 | $81.0M |
| Swiss National Bank | 0.05% | Reduce -0.8% | 867,761 | $77.8M |
| American Century Companies Inc. | 0.05% | Add +5.7% | 828,630 | $74.3M |
| Heitman Real Estate Securities LLC | 4.34% | Reduce -18.5% | 765,561 | $68.6M |
| Rockefeller Capital Management L.P. | 0.19% | Add +15.3% | 763,644 | $68.4M |
| Voloridge Investment Management, LLC | 0.25% | Add +8.9% | 747,947 | $67.0M |
| Welch & Forbes LLC | 0.88% | Reduce -2.2% | 711,885 | $66.0M |
| Canada Pension Plan Investment Board | 0.06% | Reduce -18.4% | 731,515 | $65.6M |
| HSBC Holdings PLC | 0.04% | Add +20.2% | 705,792 | $63.3M |
| Wells Fargo & Company | 0.02% | Reduce -4.4% | 685,599 | $61.4M |
| Rhumbline Advisers | 0.06% | Add +5.5% | 672,308 | $60.3M |
| Neuberger Berman Group LLC | 0.05% | Reduce -4.9% | 652,768 | $58.5M |
| UBS Group AG | 0.02% | Reduce -35.3% | 648,092 | $58.1M |
| Barclays PLC | 0.03% | Add +8.5% | 636,961 | $57.1M |
| T. Rowe Price Associates Inc. | 0.01% | Add +6.8% | 632,826 | $56.7M |
| Alliancebernstein L.P. | 0.02% | Add +63.8% | 614,846 | $55.1M |
| Bank of Montreal | 0.02% | Add +7.0% | 620,509 | $55.0M |
| Aew Capital Management L P | 2.55% | Add +345.7% | 588,900 | $52.8M |
| Mitsubishi UFJ Asset Management Co., Ltd. | 0.06% | Add +12.0% | 577,034 | $51.7M |
| Asset Management One Co., Ltd. | 0.19% | Reduce -2.3% | 566,666 | $50.8M |
| Border to Coast Pensions Partnership Ltd | 1.20% | Add +0.7% | 565,000 | $50.7M |
| Korea Investment CORP | 0.13% | Add +529.0% | 561,770 | $50.3M |
| California Public Employees Retirement System | 0.04% | Reduce -1.6% | 531,826 | $47.7M |
| Envestnet Asset Management Inc. | 0.02% | Reduce -3.3% | 502,452 | $45.0M |
| LPL Financial LLC | 0.02% | Add +9.5% | 501,499 | $44.9M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.01% | Reduce -67.7% | 497,729 | $44.6M |
| California State Teachers Retirement System | 0.05% | Add +1.6% | 475,346 | $42.6M |
| Cookson Peirce & Co. Inc. | 1.99% | Add +16.0% | 461,823 | $41.4M |
| Aviva PLC | 0.12% | Add +34.4% | 455,265 | $40.8M |
| Nomura Asset Management Co. Ltd. | 0.14% | Add +5.8% | 449,272 | $40.3M |
| Jane Street Group, LLC | 0.04% | Add +124.7% | 448,135 | $40.2M |
| Marble Harbor Investment Counsel, LLC | 4.63% | Reduce -1.6% | 438,960 | $39.3M |
| Waterfront Capital Partners, LLC | 5.04% | Add +71.7% | 437,733 | $39.2M |
| CANADA LIFE ASSURANCE Co | 0.07% | Add +12.2% | 406,156 | $36.4M |
| APG Asset Management US Inc. | 0.21% | New | 400,000 | $35.9M |
| National Pension Service | 0.04% | Reduce -4.5% | 398,291 | $35.7M |
| Stifel Financial Corp. | 0.04% | Reduce -16.3% | 386,517 | $34.6M |
| Raymond James & Associates | 0.02% | Add +1.5% | 354,082 | $31.7M |
| Blair William & Co. | 0.10% | Reduce -0.4% | 348,146 | $31.2M |
| Principal Financial Group Inc. | 0.02% | Reduce -1.9% | 340,766 | $30.5M |
| Royal Bank of Canada | 0.01% | Reduce -1.1% | 337,842 | $30.3M |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 0.10% | Add +186.1% | 334,581 | $30.0M |
| Aberdeen Group plc | 0.06% | Add +42.6% | 332,855 | $29.8M |
| Adell Harriman & Carpenter Inc. | 2.30% | Add +1.6% | 332,675 | $29.8M |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 0.08% | Reduce -19.4% | 329,036 | $29.5M |
| State Board of Administration of Florida Retirement System | 0.05% | Reduce -3.9% | 308,846 | $27.7M |
| Macquarie Group Ltd. | 0.03% | Add +71.2% | 300,758 | $27.0M |
| Eventide Asset Management, LLC | 0.46% | Add +21.1% | 299,913 | $26.9M |
| Adage Capital Partners Gp, L.L.C. | 0.05% | Reduce -1.8% | 281,152 | $25.2M |
| New York State Common Retirement Fund | 0.03% | Add +1.9% | 277,278 | $24.8M |
| TD Asset Management Inc | 0.02% | Reduce -3.0% | 271,365 | $24.3M |
| New York State Teachers Retirement System | 0.05% | Reduce -6.8% | 268,054 | $24.0M |
| BNP Paribas Financial Markets | 0.02% | Reduce -37.2% | 249,420 | $22.4M |
| Citigroup Inc. | 0.02% | Add +4.8% | 247,484 | $22.2M |
| Pacer Advisors, Inc. | 0.05% | Reduce -17.5% | 241,661 | $21.7M |
| Knights of Columbus Asset Advisors LLC | 1.41% | Add +37.1% | 241,135 | $21.6M |
| Corient Private Wealth LP | 0.04% | Reduce -3.7% | 237,677 | $21.3M |
| Retirement Systems of Alabama | 0.08% | Reduce -2.9% | 234,314 | $21.0M |
| Andra AP-fonden | 0.35% | Reduce -21.3% | 232,300 | $20.8M |
| Commonwealth Equity Services, LLC | 0.03% | Add +8.1% | 230,536 | $20.7M |
| Swedbank AB | 0.03% | Reduce -5.5% | 229,212 | $20.5M |
| Moran Wealth Management, LLC | 0.66% | New | 224,603 | $20.1M |
| Ensign Peak Advisors, Inc | 0.04% | Add +15.7% | 223,686 | $20.0M |
| United Bank | 2.46% | Reduce -10.4% | 220,820 | $19.8M |
| Natixis Advisors, LLC | 0.04% | Add +26.5% | 210,976 | $18.9M |
"% of holder's portfolio" is IRM's weight in each manager's 13F, not the share of Iron Mountain Inc. the manager owns.