Who owns Iron Mountain?
- Ticker: IRM
- CUSIP Number: 46284v101
Tip: Access positions for across all investors
Analyze quarterly positions in Iron Mountain with up to 7 years of data, all consolidated into one spreadsheet
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Top investors of Iron Mountain stock
Who bought or sold Iron Mountain this quarter?
| Fund or Company Name | Shares Held | Valued At | Change in Shares | As Of | Actions |
|---|---|---|---|---|---|
| Vanguard Group | 47M | $3.9B | -1% | Dec 2025 |
|
| BlackRock | 33M | $3.4B | 0% | Mar 2026 |
|
| Vanguard Portfolio Management | 25M | $2.6B | 100% | Mar 2026 |
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| Cohen & Steers Capital Management | 19M | $1.6B | 20% | Dec 2025 |
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| Vanguard Capital Management | 19M | $1.9B | 100% | Mar 2026 |
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| State Street Corporation | 17M | $1.4B | -1% | Dec 2025 |
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| Geode Capital Management | 8.5M | $863M | 2% | Mar 2026 |
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| FMR | 8.0M | $662M | 2% | Dec 2025 |
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| Morgan Stanley | 4.7M | $475M | 29% | Mar 2026 |
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| Principal Financial Group | 4.6M | $466M | 9% | Mar 2026 |
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| Dimensional Fund Advisors | 4.6M | $465M | 3% | Mar 2026 |
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| Northern Trust | 4.2M | $345M | 3% | Dec 2025 |
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| Invesco | 3.9M | $401M | -11% | Mar 2026 |
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| Charles Schwab Investment Management | 3.9M | $322M | 6% | Dec 2025 |
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| Legal & General Group | 3.1M | $320M | -7% | Mar 2026 |
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| Daiwa Securities Group | 3.1M | $317M | -15% | Mar 2026 |
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| Deutsche Bank Aktiengesellschaft | 3.1M | $316M | 22% | Mar 2026 |
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| Prudential Financial | 2.4M | $247M | 5% | Mar 2026 |
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| Centersquare Investment Management | 2.3M | $236M | -12% | Mar 2026 |
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| Goldman Sachs Group | 2.2M | $226M | 45% | Mar 2026 |
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| Vontobel Holding | 2.1M | $216M | 25% | Mar 2026 |
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| Nuveen | 2.1M | $211M | -3% | Mar 2026 |
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| Capital World Investors | 1.9M | $191M | -12% | Mar 2026 |
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| Ameriprise Financial | 1.9M | $190M | 6% | Mar 2026 |
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| AQR Capital Management | 1.8M | $183M | 100% | Mar 2026 |
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| Select Equity | 1.8M | $182M | 100% | Mar 2026 |
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| PGGM Vermogensbeheer B.V. | 1.7M | $138M | -2% | Dec 2025 |
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| Vanguard Fiduciary Trust | 1.7M | $169M | 100% | Mar 2026 |
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| Bank of New York Mellon | 1.6M | $166M | -4% | Mar 2026 |
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| Duff & Phelps Investment Management | 1.6M | $161M | 0% | Mar 2026 |
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| Russell Investments | 1.5M | $149M | 4% | Mar 2026 |
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| Ing Clarion Real Estate Securities | 1.4M | $120M | 14% | Dec 2025 |
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| Contour Asset Management | 1.4M | $148M | -49% | Mar 2026 |
|
| Royal Bank of Canada | 1.4M | $144M | -39% | Mar 2026 |
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| Bank of America Corporation | 1.4M | $143M | 100% | Mar 2026 |
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| Hsbc Holdings | 1.3M | $130M | 21% | Mar 2026 |
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| DekaBank Deutsche Girozentrale | 1.1M | $117M | 0% | Mar 2026 |
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| Amundi | 1.1M | $112M | -18% | Mar 2026 |
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| Sei Investments | 975k | $100M | -5% | Mar 2026 |
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| Sumitomo Mitsui Trust Holdings | 934k | $95M | 3% | Mar 2026 |
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| Mitsubishi UFJ Asset Management | 908k | $93M | 8% | Mar 2026 |
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| Swiss National Bank | 868k | $89M | 7% | Mar 2026 |
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| Pictet Asset Management Holding SA | 865k | $88M | -62% | Mar 2026 |
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| CIBC Bancorp USA | 829k | $85M | 600% | Mar 2026 |
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| Jane Street | 826k | $84M | 1002% | Mar 2026 |
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| UBS Group | 817k | $84M | 1% | Mar 2026 |
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| Barclays | 729k | $61M | -1% | Dec 2025 |
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| APG Asset Management US | 704k | $71M | 21% | Mar 2026 |
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| Citadel Advisors | 680k | $69M | -51% | Mar 2026 |
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| Atlantic Trust | 678k | $56M | -6% | Dec 2025 |
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| Wells Fargo & Company | 659k | $67M | 3% | Mar 2026 |
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| Adage Capital Partners GP | 657k | $55M | 19% | Dec 2025 |
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| Welch & Forbes | 652k | $67M | -1% | Mar 2026 |
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| Vanguard Global Advisers | 648k | $66M | 100% | Mar 2026 |
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| Epoch Investment Partners | 630k | $52M | -3% | Dec 2025 |
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| LPL Financial | 621k | $64M | -2% | Mar 2026 |
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| Universal- Beteiligungs- und Servicegesellschaft mbH | 591k | $60M | -6% | Mar 2026 |
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| Nomura Asset Management International | 587k | $60M | 100% | Mar 2026 |
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| Rhumbline Advisers | 579k | $59M | -2% | Mar 2026 |
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| Alliancebernstein | 565k | $47M | 4% | Mar 2026 |
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| Nomura Asset Management | 563k | $58M | 3% | Mar 2026 |
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| Susquehanna International | 549k | $46M | -1% | Dec 2025 |
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| Worldquant Millennium Quantitative Strategies | 548k | $56M | 251% | Mar 2026 |
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| Diam | 548k | $56M | -2% | Mar 2026 |
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| Bamco | 525k | $54M | 100% | Mar 2026 |
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| Bnp Paribas Arbitrage, Snc | 509k | $52M | -10% | Mar 2026 |
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| Vanguard Asset Management | 505k | $52M | 100% | Mar 2026 |
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| CalPERS | 503k | $51M | -2% | Mar 2026 |
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| Border to Coast Pensions Partnership | 470k | $48M | -6% | Mar 2026 |
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| Millennium Management | 452k | $46M | -22% | Mar 2026 |
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| Neuberger Berman Group | 431k | $36M | 4% | Dec 2025 |
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| National Pension Service | 429k | $44M | -16% | Mar 2026 |
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| California State Teachers Retirement System | 423k | $43M | -3% | Mar 2026 |
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| Bank Of Montreal | 406k | $42M | 100% | Mar 2026 |
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| American Century Companies | 396k | $33M | -28% | Dec 2025 |
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| Teacher Retirement System Of Texas | 395k | $40M | 18% | Mar 2026 |
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| Rockefeller Capital Management | 389k | $40M | -4% | Mar 2026 |
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| Point72 Asset Management | 378k | $39M | -53% | Mar 2026 |
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| Raymond James Financial | 372k | $31M | -2% | Dec 2025 |
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| Standard Life Aberdeen | 371k | $38M | 2% | Mar 2026 |
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| Adelante Capital Management | 357k | $37M | 5% | Mar 2026 |
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| Vanguard Investments Australia | 343k | $35M | 100% | Mar 2026 |
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| Great-West Life Assurance Company | 337k | $28M | -24% | Dec 2025 |
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| Quantinno Capital Management | 322k | $33M | 93% | Mar 2026 |
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| Adell, Harriman, & Carpenter | 316k | $32M | 0% | Mar 2026 |
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| Citigroup | 316k | $32M | 100% | Mar 2026 |
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| Soros Fund Management | 310k | $32M | -5% | Mar 2026 |
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| Marble Harbor Investment Counsel | 301k | $31M | -4% | Mar 2026 |
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| Ensign Peak Advisors | 297k | $30M | 298% | Mar 2026 |
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| Macquarie Group | 293k | $24M | 2% | Dec 2025 |
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| OTR - Nominee Name for The State Teachers Retirement Board of Ohio | 288k | $29M | -31% | Mar 2026 |
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| Apollo Management Holdings | 266k | $22M | 100% | Dec 2025 |
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| Aviva | 263k | $27M | 3% | Mar 2026 |
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| Florida State Board of Administration | 263k | $27M | 0% | Mar 2026 |
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| Swedbank AB | 260k | $27M | -9% | Mar 2026 |
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| Cetera Investment Advisers | 260k | $27M | 5% | Mar 2026 |
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| Heitman Real Estate Securities | 260k | $27M | -47% | Mar 2026 |
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| Stifel Financial | 255k | $26M | 12% | Mar 2026 |
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| Captrust Financial Advisors | 255k | $21M | -67% | Dec 2025 |
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| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 252k | $26M | -49% | Mar 2026 |
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| Schonfeld Strategic Advisors | 249k | $25M | 19% | Mar 2026 |
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| Americana Partners | 244k | $25M | 1% | Mar 2026 |
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| New York State Teachers Retirement System | 228k | $23M | 0% | Mar 2026 |
|
| Retirement Systems of Alabama | 228k | $23M | 0% | Mar 2026 |
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| William Blair $ Company | 225k | $23M | -5% | Mar 2026 |
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| Envestnet Asset Management | 225k | $23M | 43% | Mar 2026 |
|
| Colony | 218k | $18M | 68% | Dec 2025 |
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| Federated Investors | 214k | $22M | 45% | Mar 2026 |
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| W. H. Reaves & Co | 214k | $22M | 296% | Mar 2026 |
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| CI Private Wealth | 212k | $22M | 0% | Mar 2026 |
|
| Verition Fund Management | 209k | $17M | 649% | Dec 2025 |
|
| Commonwealth of Pennsylvania | 202k | $21M | 23% | Mar 2026 |
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| Victory Capital Management | 199k | $17M | -11% | Dec 2025 |
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| Zurcher Kantonalbank | 199k | $20M | -3% | Mar 2026 |
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| Ohio Pers | 192k | $16M | 109% | Dec 2025 |
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| Hudson Bay Capital Management | 191k | $20M | 100% | Mar 2026 |
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| Klp Kapitalforvaltning As | 190k | $20M | 18% | Mar 2026 |
|
| Brookstone Capital Management | 189k | $19M | -20% | Mar 2026 |
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| Brookfield Asset Management | 188k | $19M | 31% | Mar 2026 |
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| Two Sigma Investments | 188k | $19M | -35% | Mar 2026 |
|
| New York State Common Retirement Fund | 184k | $19M | 0% | Mar 2026 |
|
| TD Asset Management | 181k | $19M | 0% | Mar 2026 |
|
| Resona Asset Management | 181k | $18M | 6% | Mar 2026 |
|
| Alaska Retirement Management Board | 178k | $18M | 2% | Mar 2026 |
|
| United Capital Financial Advisers | 176k | $18M | 2% | Mar 2026 |
|
| Manufacturers Life Insurance Company | 174k | $18M | -4% | Mar 2026 |
|
| Moran Wealth Management | 173k | $18M | -11% | Mar 2026 |
|
| State of Wisconsin Investment Board | 173k | $14M | -1% | Dec 2025 |
|
| Bnp Paribas Investment Partners | 170k | $14M | 96% | Dec 2025 |
|
| Squarepoint Ops | 169k | $17M | -33% | Mar 2026 |
|
| Acadian Asset Management | 169k | $17M | 5669% | Mar 2026 |
|
| CIBC World Markets | 168k | $17M | -19% | Mar 2026 |
|
| Pacer Advisors | 167k | $17M | -25% | Mar 2026 |
|
| Natixis Asset Management Advisors | 166k | $17M | 18% | Mar 2026 |
|
| Tectonic Advisors | 166k | $17M | 2% | Mar 2026 |
|
| Danske Bank A/s | 164k | $17M | 1% | Mar 2026 |
|
| SG Capital Management | 164k | $17M | 100% | Mar 2026 |
|
| Engineers Gate Manager | 160k | $13M | 1093% | Dec 2025 |
|
| Commonwealth Equity Services | 157k | $16M | -6% | Mar 2026 |
|
| Handelsbanken Fonder AB | 152k | $16M | -1% | Mar 2026 |
|
| APG All Pensions Group NV | 151k | $13M | -2% | Mar 2026 |
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| National Bank Of Canada /fi/ | 149k | $12M | -27% | Dec 2025 |
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| Franklin Resources | 148k | $15M | 17% | Mar 2026 |
|
| Vert Asset Management | 146k | $15M | 4% | Mar 2026 |
|
| Chevy Chase Trust Holdings | 146k | $15M | -3% | Mar 2026 |
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| Royal London Asset Management | 143k | $15M | 0% | Mar 2026 |
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| United Bank | 142k | $15M | -5% | Mar 2026 |
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| Trust Company of Virginia | 142k | $15M | 0% | Mar 2026 |
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| Boothbay Fund Management | 141k | $14M | 100% | Mar 2026 |
|
| Sanctuary Advisors | 138k | $14M | 0% | Mar 2026 |
|
| Toronto-Dominion Bank | 130k | $14M | -27% | Mar 2026 |
|
| Balyasny Asset Management | 129k | $13M | -38% | Mar 2026 |
|
| Advisor Group Holdings | 123k | $10M | -20% | Dec 2025 |
|
| Intrinsic Edge Capital Management | 122k | $12M | -32% | Mar 2026 |
|
| Storebrand Asset Management As | 120k | $12M | -19% | Mar 2026 |
|
| Wellington Management Company | 104k | $8.6M | -58% | Dec 2025 |
|
| DnB NOR Asset Management AS | 91k | $9.3M | -35% | Mar 2026 |
|
| KBC Group NV | 80k | $8.2M | -48% | Mar 2026 |
|
| Hanson McClain Advisors | 78k | $6.5M | -55% | Dec 2025 |
|
| Dana Investment Advisors | 47k | $3.9M | -68% | Dec 2025 |
|
| Regions Bank | 40k | $4.0M | -82% | Mar 2026 |
|
| Andra AP-fonden | 32k | $3.2M | -84% | Mar 2026 |
|
| Capital Fund Management | 12k | $1.2M | -91% | Mar 2026 |
|
Who sold out of Iron Mountain?
| Fund or Company Name | Date Sold | Shares Held | Valued At |
|---|---|---|---|
| Norges Bank Investment Management | Dec 2025 | 4.4M | $369M |
| Jpmorgan Chase & Co | Sep 2025 | 2.1M | $210M |
| Summit Partners Public Asset Management | Sep 2025 | 185k | $19M |