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 |
|---|---|---|---|---|---|
| United Capital Financial Advisers, LLC | 215,453 | $17.3M | 0.14% | −4,473−2.0% | Reduced |
| Commonwealth Equity Services, LLC | 213,174 | $17.1M | 0.03% | +12,029+6.0% | Added |
| State Board of Administration of Florida Retirement System | 321,492 | $17.0M | 0.04% | +7,486+2.4% | Added |
| Allianz Asset Management GmbH | 205,504 | $16.5M | 0.03% | −15,656−7.1% | Reduced |
| Manufacturers Life Insurance Company, The | 205,135 | $16.5M | 0.02% | −26,455−11.4% | Reduced |
| Raymond James Financial Services Advisors, Inc. | 201,600 | $16.2M | 0.02% | −9,406−4.5% | Reduced |
| Jane Street Group, LLC | 199,473 | $16.0M | 0.02% | +151,325+314.3% | Added |
| Ensign Peak Advisors, Inc | 193,393 | $15.5M | 0.03% | +3,432+1.8% | Added |
| Candriam Luxembourg S.C.A. | 188,448 | $15.1M | 0.10% | +144,529+329.1% | Added |
| ExodusPoint Capital Management, LP | 183,185 | $14.7M | 0.18% | +183,185 | New |
| Churchill Management Corp | 180,235 | $14.5M | 0.18% | −5,208−2.8% | Reduced |
| QRG Capital Management, Inc. | 178,153 | $14.3M | 0.18% | +8,814+5.2% | Added |
| State of Tennessee, Treasury Department | 177,621 | $14.2M | 0.05% | −81,588−31.5% | Reduced |
| Knights of Columbus Asset Advisors LLC | 175,901 | $14.1M | 1.02% | +46,776+36.2% | Added |
| Macquarie Group Ltd | 175,678 | $14.1M | 0.02% | +5,098+3.0% | Added |
| Handelsbanken Fonder AB | 172,946 | $13.9M | 0.06% | +10,859+6.7% | Added |
| State of Alaska, Department of Revenue | 170,027 | $13.6M | 0.16% | +637+0.4% | Added |
| Mitsubishi UFJ Trust & Banking Corp | 169,522 | $13.6M | 0.03% | +716+0.4% | Added |
| State of Wisconsin Investment Board | 168,833 | $13.5M | 0.04% | −21,003−11.1% | Reduced |
| Trust Co of Virginia | 167,772 | $13.5M | 1.29% | −2,635−1.5% | Reduced |
| Toronto Dominion Bank | 166,908 | $13.4M | 0.02% | +47,271+39.5% | Added |
| Burney Co | 166,902 | $13.4M | 0.51% | +72,777+77.3% | Added |
| Natixis Advisors, L.P. | 166,748 | $13.4M | 0.03% | +3,453+2.1% | Added |
| Resona Asset Management Co.,Ltd. | 163,985 | $13.2M | 0.08% | +163,985 | New |
| Chevy Chase Trust Holdings, Inc. | 161,701 | $13.0M | 0.04% | −1,407−0.9% | Reduced |
| Lazard Asset Management LLC | 158,250 | $12.7M | 0.02% | −2,981−1.8% | Reduced |
| State of New Jersey Common Pension Fund D | 156,870 | $12.6M | 0.04% | 00.0% | Unchanged |
| Storebrand Asset Management AS | 155,247 | $12.5M | 0.04% | −10,861−6.5% | Reduced |
| Danske Bank A/S | 154,556 | $12.4M | 0.04% | +154,556 | New |
| Cambridge Investment Research Advisors, Inc. | 154,408 | $12.4M | 0.05% | −9,590−5.8% | Reduced |
| Sheaff Brock Investment Advisors, LLC | 153,646 | $12.3M | 0.98% | −12,843−7.7% | Reduced |
| Guggenheim Capital LLC | 145,905 | $11.7M | 0.08% | −29,705−16.9% | Reduced |
| CIBC World Markets Inc. | 144,877 | $11.6M | 0.03% | +98,394+211.7% | Added |
| Nisa Investment Advisors, LLC | 141,186 | $11.4M | 0.07% | +1,170+0.8% | Added |
| SG Americas Securities, LLC | 139,565 | $11.2M | 0.06% | +108,712+352.4% | Added |
| Eagle Asset Management Inc | 140,544 | $11.2M | 0.06% | 00.0% | Unchanged |
| Voya Investment Management LLC | 137,382 | $11.0M | 0.01% | −5,090−3.6% | Reduced |
| Sargent Investment Group, LLC | 135,926 | $10.9M | 2.39% | −10,431−7.1% | Reduced |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 135,682 | $10.9M | 0.01% | −28,832−17.5% | Reduced |
| HighTower Advisors, LLC | 133,389 | $10.7M | 0.02% | +66,924+100.7% | Added |
| Treasurer of the State of North Carolina | 132,997 | $10.7M | 0.05% | +830+0.6% | Added |
| Aew Capital Management L P | 132,120 | $10.6M | 0.52% | −48,870−27.0% | Reduced |
| Advisor Group Holdings, Inc. | 131,541 | $10.6M | 0.02% | −5,740−4.2% | Reduced |
| Royal London Asset Management Ltd | 131,255 | $10.5M | 0.03% | +3,435+2.7% | Added |
| Prudential PLC | 130,818 | $10.5M | 0.09% | +61,444+88.6% | Added |
| Mackenzie Financial Corp | 130,609 | $10.5M | 0.02% | +12,597+10.7% | Added |
| Ar Asset Management Inc | 130,600 | $10.5M | 2.55% | 00.0% | Unchanged |
| Allspring Global Investments Holdings, LLC | 129,953 | $10.4M | 0.02% | +22,715+21.2% | Added |
| Mutual Advisors, LLC | 127,677 | $10.2M | 0.33% | −2,220−1.7% | Reduced |
| James Hambro & Partners | 123,390 | $9.89M | 0.46% | −5,230−4.1% | Reduced |
| Snowden Capital Advisors LLC | 121,171 | $9.80M | 0.31% | −11,469−8.6% | Reduced |
| Vert Asset Management LLC | 121,903 | $9.78M | 4.11% | +3,608+3.1% | Added |
| Franklin Resources Inc | 120,188 | $9.64M | 0.00% | +72,092+149.9% | Added |
| CIBC World Markets Corp | 120,169 | $9.64M | 0.06% | −14,285−10.6% | Reduced |
| Gillson Capital LP | 118,499 | $9.51M | 0.90% | +118,499 | New |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 116,964 | $9.38M | 0.03% | −191,312−62.1% | Reduced |
| Empowered Funds, LLC | 116,198 | $9.32M | 0.17% | +51,858+80.6% | Added |
| Schonfeld Strategic Advisors LLC | 115,861 | $9.29M | 0.07% | −119,757−50.8% | Reduced |
| Thrivent Financial for Lutherans | 113,963 | $9.14M | 0.02% | +37,295+48.6% | Added |
| Public Employees Retirement System of Ohio | 113,846 | $9.13M | 0.04% | −12,222−9.7% | Reduced |
| Janney Montgomery Scott LLC | 108,994 | $8.74M | 0.03% | −51,552−32.1% | Reduced |
| Victory Capital Management Inc | 108,909 | $8.74M | 0.01% | −6,609−5.7% | Reduced |
| Shelton Capital Management | 108,171 | $8.68M | 0.25% | −46,499−30.1% | Reduced |
| First National Trust Co | 107,234 | $8.60M | 0.35% | +978+0.9% | Added |
| Acadian Asset Management LLC | 107,235 | $8.60M | 0.03% | −23,763−18.1% | Reduced |
| Wealth Enhancement Advisory Services, LLC | 106,283 | $8.52M | 0.02% | −9,905−8.5% | Reduced |
| Squarepoint Ops LLC | 105,524 | $8.46M | 0.03% | +97,612+1,233.7% | Added |
| MML Investors Services, LLC | 98,833 | $7.93M | 0.03% | +7,194+7.9% | Added |
| Erste Asset Management GmbH | 96,100 | $7.70M | 0.10% | +1,600+1.7% | Added |
| Mercer Global Advisors Inc | 95,776 | $7.68M | 0.02% | +1,865+2.0% | Added |
| Foresight Capital Management Advisors, Inc. | 95,114 | $7.63M | 5.81% | +1,429+1.5% | Added |
| Mason & Associates, LLC | 95,114 | $7.63M | 5.81% | +95,114 | New |
| USS Investment Management Ltd | 91,670 | $7.35M | 0.06% | +8,174+9.8% | Added |
| Susquehanna Portfolio Strategies, LLC | 91,297 | $7.32M | 0.17% | 00.0% | Unchanged |
| Vestcor Inc | 90,040 | $7.22M | 0.25% | +18,843+26.5% | Added |
| Korea Investment CORP | 89,307 | $7.16M | 0.02% | −452−0.5% | Reduced |
| M&T Bank Corp | 89,239 | $7.16M | 0.02% | −3,459−3.7% | Reduced |
| AXA S.A. | 89,049 | $7.14M | 0.02% | +368+0.4% | Added |
| Tectonic Advisors LLC | 88,111 | $7.07M | 0.54% | +1,710+2.0% | Added |
| Brookstone Capital Management | 86,971 | $6.98M | 0.12% | −204,651−70.2% | Reduced |
| Chicago Capital, LLC | 86,032 | $6.90M | 0.21% | −490−0.6% | Reduced |
| Salem Investment Counselors Inc | 85,113 | $6.88M | 0.23% | +4,888+6.1% | Added |
| Private Advisor Group, LLC | 85,108 | $6.83M | 0.05% | +1,778+2.1% | Added |
| Sonora Investment Management Group, LLC | 84,859 | $6.81M | 0.53% | −570−0.7% | Reduced |
| Creative Planning | 83,239 | $6.68M | 0.01% | +23,065+38.3% | Added |
| Credit Agricole S A | 88,996 | $6.62M | 0.11% | +45,460+104.4% | Added |
| Arizona State Retirement System | 80,311 | $6.44M | 0.04% | +98+0.1% | Added |
| State of Michigan Retirement System | 80,046 | $6.42M | 0.03% | +100+0.1% | Added |
| National Bank of Canada | 80,481 | $6.42M | 0.01% | −3,679−4.4% | Reduced |
| American International Group, Inc. | 78,997 | $6.34M | 0.02% | −580−0.7% | Reduced |
| Sumitomo Mitsui DS Asset Management Company, Ltd | 77,595 | $6.22M | 0.08% | +744+1.0% | Added |
| Nia Impact Advisors, LLC | 76,483 | $6.13M | 2.45% | +76,483 | New |
| Azimuth Capital Investment Management LLC | 75,625 | $6.07M | 0.25% | −19,710−20.7% | Reduced |
| EWG Elevate Inc. | 74,732 | $5.99M | 2.28% | −12,175−14.0% | Reduced |
| Colony Group, LLC | 74,722 | $5.99M | 0.05% | +58,089+349.2% | Added |
| MetLife Investment Management | 74,241 | $5.95M | 0.04% | −2,492−3.2% | Reduced |
| Kestra Advisory Services, LLC | 73,551 | $5.95M | 0.04% | +73,551 | New |
| American Trust Investment Advisors, LLC | 72,559 | $5.82M | 2.77% | +675+0.9% | Added |
| Woodstock Corp | 72,341 | $5.80M | 0.60% | −2,993−4.0% | Reduced |
| Avantax Advisory Services, Inc. | 72,089 | $5.78M | 0.05% | −4,447−5.8% | Reduced |