Iron Mountain Inc
IRM- Exchange
- NYSE
- Industry
- Real Estate Investment Trusts
- SEC CIK
- 0001020569
In the last 90 days, Iron Mountain Inc insiders filed 0 open-market purchases and 6 sales; 1,173 institutions reported holding it in 13F filings for Q2 2026, worth $32.4B in total; no superinvestor holds it.
13F holders, Q1 2024
Institutional positions in Iron Mountain Inc as of Mar 31, 2024. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 938
- +57 vs. Q4 2023
- Shares held
- 237.3M
- +3.71M (+1.6%) vs. Q4 2023
- Total value
- $19.0B
- +$2.65B (+16.2%) vs. Q4 2023
- New holders
- 126
- 310 more added
- Sold out
- 69
- 328 more reduced
10 institutions that held it in Q4 2023 haven't filed for Q1 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2023: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting IRM on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 1,173 | $32.4B |
| Q1 2026 | 1,090 | $25.9B |
| Q4 2025 | 1,011 | $21.4B |
| Q3 2025 | 1,017 | $25.5B |
| Q2 2025 | 1,045 | $25.5B |
| Q1 2025 | 995 | $21.1B |
| Q4 2024 | 1,067 | $24.9B |
| Q3 2024 | 1,056 | $28.8B |
| Q2 2024 | 967 | $22.2B |
| Q1 2024 | 938 | $19.0B |
| Q4 2023 | 891 | $16.4B |
| Q3 2023 | 831 | $13.7B |
| Q2 2023 | 817 | $12.9B |
| Q1 2023 | 790 | $12.0B |
| Q4 2022 | 782 | $11.4B |
| Q3 2022 | 743 | $10.0B |
| Q2 2022 | 767 | $10.9B |
| Q1 2022 | 777 | $12.4B |
| Q4 2021 | 754 | $12.0B |
| Q3 2021 | 711 | $9.94B |
| Q2 2021 | 687 | $9.70B |
| Q1 2021 | 630 | $8.44B |
Institutions, Q1 2024
Shares, value and share of portfolio for each institution holding Iron Mountain Inc; share changes are against Q4 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Sargent Investment Group, LLC | 135,926 | $10.9M | 2.39% | −10,431−7.1% | Reduced |
| Voya Investment Management LLC | 137,382 | $11.0M | 0.01% | −5,090−3.6% | Reduced |
| Eagle Asset Management Inc | 140,544 | $11.2M | 0.06% | 00.0% | Unchanged |
| SG Americas Securities, LLC | 139,565 | $11.2M | 0.06% | +108,712+352.4% | Added |
| Nisa Investment Advisors, LLC | 141,186 | $11.4M | 0.07% | +1,170+0.8% | Added |
| CIBC World Markets Inc. | 144,877 | $11.6M | 0.03% | +98,394+211.7% | Added |
| Guggenheim Capital LLC | 145,905 | $11.7M | 0.08% | −29,705−16.9% | Reduced |
| Sheaff Brock Investment Advisors, LLC | 153,646 | $12.3M | 0.98% | −12,843−7.7% | Reduced |
| Cambridge Investment Research Advisors, Inc. | 154,408 | $12.4M | 0.05% | −9,590−5.8% | Reduced |
| Danske Bank A/S | 154,556 | $12.4M | 0.04% | +154,556 | New |
| Storebrand Asset Management AS | 155,247 | $12.5M | 0.04% | −10,861−6.5% | Reduced |
| State of New Jersey Common Pension Fund D | 156,870 | $12.6M | 0.04% | 00.0% | Unchanged |
| Lazard Asset Management LLC | 158,250 | $12.7M | 0.02% | −2,981−1.8% | Reduced |
| Chevy Chase Trust Holdings, Inc. | 161,701 | $13.0M | 0.04% | −1,407−0.9% | Reduced |
| Resona Asset Management Co.,Ltd. | 163,985 | $13.2M | 0.08% | +163,985 | New |
| Natixis Advisors, L.P. | 166,748 | $13.4M | 0.03% | +3,453+2.1% | Added |
| Burney Co | 166,902 | $13.4M | 0.51% | +72,777+77.3% | Added |
| Toronto Dominion Bank | 166,908 | $13.4M | 0.02% | +47,271+39.5% | Added |
| Trust Co of Virginia | 167,772 | $13.5M | 1.29% | −2,635−1.5% | Reduced |
| State of Wisconsin Investment Board | 168,833 | $13.5M | 0.04% | −21,003−11.1% | Reduced |
| Mitsubishi UFJ Trust & Banking Corp | 169,522 | $13.6M | 0.03% | +716+0.4% | Added |
| State of Alaska, Department of Revenue | 170,027 | $13.6M | 0.16% | +637+0.4% | Added |
| Handelsbanken Fonder AB | 172,946 | $13.9M | 0.06% | +10,859+6.7% | Added |
| Macquarie Group Ltd | 175,678 | $14.1M | 0.02% | +5,098+3.0% | Added |
| Knights of Columbus Asset Advisors LLC | 175,901 | $14.1M | 1.02% | +46,776+36.2% | Added |
| State of Tennessee, Treasury Department | 177,621 | $14.2M | 0.05% | −81,588−31.5% | Reduced |
| QRG Capital Management, Inc. | 178,153 | $14.3M | 0.18% | +8,814+5.2% | Added |
| Churchill Management Corp | 180,235 | $14.5M | 0.18% | −5,208−2.8% | Reduced |
| ExodusPoint Capital Management, LP | 183,185 | $14.7M | 0.18% | +183,185 | New |
| Candriam Luxembourg S.C.A. | 188,448 | $15.1M | 0.10% | +144,529+329.1% | Added |
| Ensign Peak Advisors, Inc | 193,393 | $15.5M | 0.03% | +3,432+1.8% | Added |
| Jane Street Group, LLC | 199,473 | $16.0M | 0.02% | +151,325+314.3% | Added |
| Raymond James Financial Services Advisors, Inc. | 201,600 | $16.2M | 0.02% | −9,406−4.5% | Reduced |
| Manufacturers Life Insurance Company, The | 205,135 | $16.5M | 0.02% | −26,455−11.4% | Reduced |
| Allianz Asset Management GmbH | 205,504 | $16.5M | 0.03% | −15,656−7.1% | Reduced |
| State Board of Administration of Florida Retirement System | 321,492 | $17.0M | 0.04% | +7,486+2.4% | Added |
| Commonwealth Equity Services, LLC | 213,174 | $17.1M | 0.03% | +12,029+6.0% | Added |
| United Capital Financial Advisers, LLC | 215,453 | $17.3M | 0.14% | −4,473−2.0% | Reduced |
| Pinebridge Investments, L.P. | 228,192 | $18.3M | 0.15% | +228,192 | New |
| Cetera Investment Advisers | 229,863 | $18.4M | 0.04% | +201,448+708.9% | Added |
| Dana Investment Advisors, Inc. | 231,050 | $18.5M | 0.62% | −23,372−9.2% | Reduced |
| Standard Life Aberdeen plc | 233,340 | $18.7M | 0.04% | +5,456+2.4% | Added |
| First Trust Advisors LP | 234,893 | $18.8M | 0.02% | −14,095−5.7% | Reduced |
| Citigroup Inc | 236,098 | $18.9M | 0.02% | +78,677+50.0% | Added |
| Crossmark Global Holdings, Inc. | 239,889 | $19.2M | 0.37% | −8,088−3.3% | Reduced |
| Retirement Systems of Alabama | 241,416 | $19.4M | 0.07% | +920.0% | Added |
| Swedbank AB | 242,425 | $19.4M | 0.03% | +8,674+3.7% | Added |
| United Bank | 246,489 | $19.8M | 2.36% | −41,480−14.4% | Reduced |
| CI Private Wealth, LLC | 246,717 | $19.8M | 0.04% | −62,322−20.2% | Reduced |
| Mirae Asset Global Investments Co., Ltd. | 356,750 | $19.8M | 0.04% | +9,184+2.6% | Added |
| Eventide Asset Management, LLC | 247,702 | $19.9M | 0.31% | +247,702 | New |
| Waterfront Capital Partners, LLC | 255,000 | $20.5M | 1.91% | +255,000 | New |
| Polar Asset Management Partners Inc. | 264,600 | $21.2M | 0.57% | +124,000+88.2% | Added |
| New York State Common Retirement Fund | 272,121 | $21.8M | 0.03% | −20,732−7.1% | Reduced |
| TD Asset Management Inc | 279,875 | $22.4M | 0.02% | −12,396−4.2% | Reduced |
| Adage Capital Partners GP, L.L.C. | 286,352 | $23.0M | 0.04% | +2,700+1.0% | Added |
| New York State Teachers Retirement System | 287,599 | $23.1M | 0.05% | −8,985−3.0% | Reduced |
| Pacer Advisors, Inc. | 292,913 | $23.5M | 0.05% | −87,113−22.9% | Reduced |
| Andra AP-fonden | 294,974 | $23.7M | 0.42% | +170,474+136.9% | Added |
| Robeco Institutional Asset Management B.V. | 300,385 | $24.1M | 0.05% | +258,231+612.6% | Added |
| Adell Harriman & Carpenter Inc | 327,558 | $26.3M | 2.16% | +2,560+0.8% | Added |
| Aviva PLC | 338,646 | $27.2M | 0.09% | +4,490+1.3% | Added |
| Royal Bank of Canada | 341,557 | $27.4M | 0.01% | −163,527−32.4% | Reduced |
| Principal Financial Group Inc | 347,264 | $27.9M | 0.02% | +10,011+3.0% | Added |
| Raymond James & Associates | 348,798 | $28.0M | 0.02% | +8,118+2.4% | Added |
| Blair William & Co | 349,411 | $28.0M | 0.09% | +10,326+3.0% | Added |
| Great West Life Assurance Co | 362,134 | $29.1M | 0.06% | +1,716+0.5% | Added |
| Alliancebernstein L.P. | 375,285 | $30.1M | 0.01% | −32,004−7.9% | Reduced |
| BNP Paribas Arbitrage, SA | 397,036 | $31.8M | 0.04% | +173,360+77.5% | Added |
| Cookson Peirce & Co Inc | 397,999 | $31.9M | 1.70% | −838−0.2% | Reduced |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 408,068 | $32.7M | 0.09% | −186,990−31.4% | Reduced |
| National Pension Service | 417,128 | $33.5M | 0.04% | +3,199+0.8% | Added |
| Nomura Asset Management Co Ltd | 424,782 | $34.1M | 0.12% | +11,911+2.9% | Added |
| Marble Harbor Investment Counsel, LLC | 446,081 | $35.8M | 4.12% | −7,386−1.6% | Reduced |
| LPL Financial LLC | 458,001 | $36.7M | 0.02% | −60,434−11.7% | Reduced |
| Stifel Financial Corp | 461,744 | $37.0M | 0.04% | −15,869−3.3% | Reduced |
| California State Teachers Retirement System | 467,973 | $37.5M | 0.05% | +6,770+1.5% | Added |
| Credit Suisse AG | 505,639 | $40.6M | 0.04% | −27,938−5.2% | Reduced |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 515,260 | $41.3M | 0.06% | +52,608+11.4% | Added |
| Envestnet Asset Management Inc | 519,347 | $41.7M | 0.02% | +139,864+36.9% | Added |
| California Public Employees Retirement System | 540,387 | $43.3M | 0.03% | −14,454−2.6% | Reduced |
| Border to Coast Pensions Partnership Ltd | 561,040 | $45.0M | 1.00% | 00.0% | Unchanged |
| Bank of Montreal | 580,181 | $46.5M | 0.02% | −28,037−4.6% | Reduced |
| Asset Management One Co.,Ltd. | 580,202 | $46.5M | 0.18% | −9,496−1.6% | Reduced |
| Barclays PLC | 586,904 | $47.1M | 0.02% | −185,416−24.0% | Reduced |
| HSBC Holdings PLC | 587,382 | $47.1M | 0.03% | +167,661+39.9% | Added |
| Price T Rowe Associates Inc | 592,773 | $47.5M | 0.01% | +110,551+22.9% | Added |
| Rhumbline Advisers | 637,535 | $51.1M | 0.05% | +462+0.1% | Added |
| Rockefeller Capital Management L.P. | 662,217 | $53.1M | 0.16% | −119,634−15.3% | Reduced |
| Neuberger Berman Group LLC | 686,367 | $55.1M | 0.05% | +48,339+7.6% | Added |
| Voloridge Investment Management, LLC | 686,771 | $55.1M | 0.20% | +65,541+10.6% | Added |
| Wells Fargo & Company | 717,300 | $57.5M | 0.02% | +62,378+9.5% | Added |
| Welch & Forbes LLC | 727,641 | $58.4M | 0.80% | −3,937−0.5% | Reduced |
| American Century Companies Inc | 784,056 | $62.9M | 0.04% | +54,972+7.5% | Added |
| Goldman Sachs Group Inc | 820,313 | $65.8M | 0.01% | −119,777−12.7% | Reduced |
| Point72 Asset Management, L.P. | 833,604 | $66.9M | 0.19% | +194,554+30.4% | Added |
| Captrust Financial Advisors | 856,945 | $68.7M | 0.25% | +31,876+3.9% | Added |
| Swiss National Bank | 874,461 | $70.1M | 0.05% | −38,100−4.2% | Reduced |
| Duff & Phelps Investment Management Co | 895,705 | $71.8M | 0.86% | +839,635+1,497.5% | Added |
| Canada Pension Plan Investment Board | 896,990 | $71.9M | 0.08% | −50,000−5.3% | Reduced |