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, Q2 2023
Institutional positions in Iron Mountain Inc as of Jun 30, 2023. 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
- 817
- +35 vs. Q1 2023
- Shares held
- 227.1M
- +1.66M (+0.7%) vs. Q1 2023
- Total value
- $12.9B
- +$954.9M (+8.0%) vs. Q1 2023
- New holders
- 86
- 284 more added
- Sold out
- 51
- 292 more reduced
8 institutions that held it in Q1 2023 haven't filed for Q2 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 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, Q2 2023
Shares, value and share of portfolio for each institution holding Iron Mountain Inc; share changes are against Q1 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Sargent Investment Group, LLC | 164,090 | $9.32M | 2.27% | −20,560−11.1% | Reduced |
| Standard Life Aberdeen plc | 165,346 | $9.39M | 0.02% | +8,885+5.7% | Added |
| Chevy Chase Trust Holdings, Inc. | 167,765 | $9.53M | 0.04% | −1,175−0.7% | Reduced |
| Janney Montgomery Scott LLC | 168,127 | $9.55M | 0.03% | −2,500−1.5% | Reduced |
| State of Wisconsin Investment Board | 169,438 | $9.63M | 0.03% | +9,631+6.0% | Added |
| Trust Co of Virginia | 172,700 | $9.81M | 1.04% | −4,749−2.7% | Reduced |
| State of Alaska, Department of Revenue | 172,928 | $9.82M | 0.12% | −17,478−9.2% | Reduced |
| Sheaff Brock Investment Advisors, LLC | 173,552 | $9.86M | 0.95% | −2,169−1.2% | Reduced |
| Storebrand Asset Management AS | 183,575 | $10.4M | 0.05% | −1,781−1.0% | Reduced |
| Hall Private Wealth Advisors | 186,353 | $10.6M | 5.72% | −13,089−6.6% | Reduced |
| Mitsubishi UFJ Trust & Banking Corp | 187,382 | $10.6M | 0.02% | −24,288−11.5% | Reduced |
| Commonwealth Equity Services, LLC | 188,239 | $10.7M | 0.02% | −3,474−1.8% | Reduced |
| STRS Ohio | 189,889 | $10.8M | 0.05% | −139,207−42.3% | Reduced |
| Voya Investment Management LLC | 191,427 | $10.9M | 0.01% | −150,321−44.0% | Reduced |
| ExodusPoint Capital Management, LP | 198,407 | $11.3M | 0.13% | +186,382+1,550.0% | Added |
| Qube Research & Technologies Ltd | 200,512 | $11.4M | 0.04% | +183,788+1,098.9% | Added |
| Churchill Management Corp | 201,000 | $11.4M | 0.19% | +201,000 | New |
| Gilman Hill Asset Management, LLC | 205,753 | $11.7M | 2.18% | −1,681−0.8% | Reduced |
| Manufacturers Life Insurance Company, The | 207,365 | $11.8M | 0.01% | −3,828−1.8% | Reduced |
| Guggenheim Capital LLC | 212,797 | $12.1M | 0.10% | −4,648−2.1% | Reduced |
| Cinctive Capital Management LP | 214,329 | $12.2M | 0.48% | −5,083−2.3% | Reduced |
| Citigroup Inc | 225,179 | $12.8M | 0.02% | −129,485−36.5% | Reduced |
| United Capital Financial Advisers, LLC | 225,797 | $12.8M | 0.07% | +362+0.2% | Added |
| Uniplan Investment Counsel, Inc. | 226,364 | $12.9M | 0.93% | +226,364 | New |
| Swedbank AB | 235,702 | $13.4M | 0.02% | −33,272−12.4% | Reduced |
| Adage Capital Partners GP, L.L.C. | 240,552 | $13.7M | 0.03% | +74,500+44.9% | Added |
| Retirement Systems of Alabama | 244,152 | $13.9M | 0.06% | −18,719−7.1% | Reduced |
| Lazard Asset Management LLC | 244,307 | $13.9M | 0.02% | +8,640+3.7% | Added |
| Raymond James Financial Services Advisors, Inc. | 250,990 | $14.3M | 0.03% | +11,588+4.8% | Added |
| First Trust Advisors LP | 260,702 | $14.8M | 0.02% | −33,201−11.3% | Reduced |
| Crossmark Global Holdings, Inc. | 252,837 | $15.3M | 0.33% | +10,876+4.5% | Added |
| BNP Paribas Arbitrage, SA | 281,783 | $16.0M | 0.03% | +26,747+10.5% | Added |
| Captrust Financial Advisors | 283,920 | $16.1M | 0.06% | −2,049−0.7% | Reduced |
| United Bank | 301,007 | $17.1M | 2.10% | −16,995−5.3% | Reduced |
| Dana Investment Advisors, Inc. | 305,578 | $17.4M | 0.86% | −18,827−5.8% | Reduced |
| SEI Investments Co | 307,382 | $17.5M | 0.03% | +119,166+63.3% | Added |
| State Board of Administration of Florida Retirement System | 313,509 | $17.8M | 0.04% | −7,983−2.5% | Reduced |
| Great West Life Assurance Co | 315,768 | $18.0M | 0.04% | −2,782−0.9% | Reduced |
| New York State Teachers Retirement System | 319,250 | $18.1M | 0.04% | −3,768−1.2% | Reduced |
| Mirae Asset Global Investments Co., Ltd. | 322,578 | $18.3M | 0.04% | −18,017−5.3% | Reduced |
| TD Asset Management Inc | 323,463 | $18.4M | 0.02% | −36,185−10.1% | Reduced |
| Adell Harriman & Carpenter Inc | 321,111 | $18.4M | 1.87% | −3,765−1.2% | Reduced |
| Principal Financial Group Inc | 343,693 | $19.5M | 0.01% | −13,714−3.8% | Reduced |
| New York State Common Retirement Fund | 346,054 | $19.7M | 0.03% | +30,254+9.6% | Added |
| Blair William & Co | 352,651 | $20.0M | 0.07% | −5,820−1.6% | Reduced |
| Raymond James & Associates | 356,722 | $20.3M | 0.02% | −34,291−8.8% | Reduced |
| Aviva PLC | 366,678 | $20.8M | 0.08% | −48,955−11.8% | Reduced |
| HSBC Holdings PLC | 369,192 | $20.9M | 0.02% | +52,342+16.5% | Added |
| Brookstone Capital Management | 368,952 | $21.4M | 0.43% | +6,615+1.8% | Added |
| CI Private Wealth, LLC | 393,465 | $22.4M | 0.05% | +352,788+867.3% | Added |
| Alliancebernstein L.P. | 397,575 | $22.6M | 0.01% | +3,186+0.8% | Added |
| Nomura Asset Management Co Ltd | 402,004 | $22.8M | 0.11% | +9,200+2.3% | Added |
| Cookson Peirce & Co Inc | 408,059 | $23.2M | 1.42% | −7,799−1.9% | Reduced |
| SG Americas Securities, LLC | 414,783 | $23.6M | 0.20% | +105,494+34.1% | Added |
| National Pension Service | 428,189 | $24.0M | 0.04% | −39,135−8.4% | Reduced |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 423,978 | $24.1M | 0.05% | +37,858+9.8% | Added |
| Millennium Management LLC | 440,687 | $25.0M | 0.03% | +269,813+157.9% | Added |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 444,705 | $25.3M | 0.04% | +28,997+7.0% | Added |
| Marble Harbor Investment Counsel, LLC | 466,909 | $26.5M | 3.34% | −1,855−0.4% | Reduced |
| LPL Financial LLC | 471,266 | $26.8M | 0.02% | +40,629+9.4% | Added |
| Price T Rowe Associates Inc | 475,549 | $27.0M | 0.00% | +1,678+0.4% | Added |
| California State Teachers Retirement System | 475,649 | $27.0M | 0.04% | −10,840−2.2% | Reduced |
| Pacer Advisors, Inc. | 493,749 | $28.1M | 0.11% | −156,402−24.1% | Reduced |
| Stifel Financial Corp | 516,367 | $29.3M | 0.04% | −91,044−15.0% | Reduced |
| Credit Suisse AG | 522,971 | $29.7M | 0.03% | +136,911+35.5% | Added |
| Royal Bank of Canada | 525,374 | $29.9M | 0.01% | −70,844−11.9% | Reduced |
| Ameriprise Financial Inc | 549,059 | $31.2M | 0.01% | −131,028−19.3% | Reduced |
| Bank of Montreal | 581,287 | $33.0M | 0.02% | +83,869+16.9% | Added |
| California Public Employees Retirement System | 585,081 | $33.2M | 0.03% | −14,898−2.5% | Reduced |
| Envestnet Asset Management Inc | 598,724 | $34.0M | 0.02% | −106,036−15.0% | Reduced |
| Barclays PLC | 599,593 | $34.1M | 0.02% | +281,617+88.6% | Added |
| Border to Coast Pensions Partnership Ltd | 606,040 | $34.4M | 0.86% | 00.0% | Unchanged |
| Intech Investment Management LLC | 606,810 | $34.5M | 0.36% | −461,331−43.2% | Reduced |
| Citadel Advisors LLC | 616,764 | $35.0M | 0.04% | +402,227+187.5% | Added |
| Rhumbline Advisers | 649,133 | $36.9M | 0.04% | −9,059−1.4% | Reduced |
| Asset Management One Co.,Ltd. | 675,384 | $38.4M | 0.16% | +4,839+0.7% | Added |
| Wells Fargo & Company | 679,386 | $38.6M | 0.01% | −26,791−3.8% | Reduced |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 717,670 | $40.8M | 0.13% | +671,934+1,469.2% | Added |
| Wellington Management Group LLP | 725,549 | $41.2M | 0.01% | +56,745+8.5% | Added |
| Welch & Forbes LLC | 744,524 | $42.3M | 0.67% | −1610.0% | Reduced |
| American Century Companies Inc | 824,730 | $46.9M | 0.04% | −33,977−4.0% | Reduced |
| Goldman Sachs Group Inc | 834,129 | $47.4M | 0.01% | −226,123−21.3% | Reduced |
| UBS Group AG | 862,308 | $49.0M | 0.02% | +257,544+42.6% | Added |
| Canada Pension Plan Investment Board | 867,590 | $49.3M | 0.07% | +2,000+0.2% | Added |
| Nuveen Asset Management, LLC | 870,377 | $49.5M | 0.02% | −28,609−3.2% | Reduced |
| Bank of America Corp | 881,538 | $50.1M | 0.01% | −638,883−42.0% | Reduced |
| Rockefeller Capital Management L.P. | 896,935 | $51.0M | 0.20% | −96,131−9.7% | Reduced |
| Sumitomo Mitsui Trust Holdings, Inc. | 963,316 | $54.7M | 0.04% | −101,077−9.5% | Reduced |
| UBS Asset Management Americas Inc | 1,037,676 | $54.9M | 0.03% | 00.0% | Unchanged |
| Agf Management Ltd | 977,795 | $55.6M | 0.40% | −26,382−2.6% | Reduced |
| Neuberger Berman Group LLC | 1,018,538 | $57.9M | 0.05% | −140,242−12.1% | Reduced |
| Swiss National Bank | 1,052,861 | $59.8M | 0.04% | −100,900−8.7% | Reduced |
| Russell Investments Group, Ltd. | 1,084,084 | $61.4M | 0.12% | +106,471+10.9% | Added |
| DekaBank Deutsche Girozentrale | 1,122,995 | $63.6M | 0.14% | +49,666+4.6% | Added |
| CIBC Private Wealth Group, LLC | 1,254,063 | $71.3M | 0.16% | +63,315+5.3% | Added |
| Prudential Financial Inc | 1,314,926 | $74.7M | 0.11% | +844,211+179.3% | Added |
| Daiwa Securities Group Inc. | 1,867,040 | $106.1M | 0.70% | +1,753,325+1,541.9% | Added |
| JPMorgan Chase & Co | 1,959,785 | $111.4M | 0.01% | +141,684+7.8% | Added |
| Norges Bank | 2,064,551 | $117.3M | 0.02% | −12,516−0.6% | Reduced |
| Invesco Ltd. | 2,166,096 | $123.1M | 0.03% | −48,130−2.2% | Reduced |