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 8 sales; 1,173 institutions reported holding it in 13F filings for Q2 2026, worth $32.4B in total; no superinvestor holds it.
13F holders, Q3 2022
Institutional positions in Iron Mountain Inc as of Sep 30, 2022. 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
- 743
- −9 vs. Q2 2022
- Shares held
- 227.0M
- +3.02M (+1.4%) vs. Q2 2022
- Total value
- $10.0B
- −$913.1M (−8.4%) vs. Q2 2022
- New holders
- 64
- 289 more added
- Sold out
- 73
- 256 more reduced
15 institutions that held it in Q2 2022 haven't filed for Q3 2022 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2022: 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, Q3 2022
Shares, value and share of portfolio for each institution holding Iron Mountain Inc; share changes are against Q2 2022.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Vanguard Group Inc | 47,446,869 | $2.09B | 0.06% | −235,842−0.5% | Reduced |
| Capital World Investors | 24,680,046 | $1.09B | 0.24% | −4,226,217−14.6% | Reduced |
| BlackRock Inc. | 22,739,307 | $999.8M | 0.03% | −85,662−0.4% | Reduced |
| State Street Corp | 14,500,564 | $646.5M | 0.04% | −395,540−2.7% | Reduced |
| Geode Capital Management, LLC | 6,771,504 | $297.4M | 0.05% | +51,666+0.8% | Added |
| Morgan Stanley | 5,370,717 | $236.2M | 0.03% | +695,338+14.9% | Added |
| Dimensional Fund Advisors LP | 4,049,027 | $178.0M | 0.07% | −9,556−0.2% | Reduced |
| Pictet Asset Management SA | 4,030,490 | $177.2M | 0.26% | +1,163,745+40.6% | Added |
| Deutsche Bank AG | 4,019,486 | $176.7M | 0.11% | +2,234,446+125.2% | Added |
| Invesco Ltd. | 3,954,490 | $173.9M | 0.06% | +1,873,314+90.0% | Added |
| FMR LLC | 3,772,393 | $165.9M | 0.02% | −196,593−5.0% | Reduced |
| Amundi | 3,612,230 | $161.6M | 0.10% | −76,925−2.1% | Reduced |
| Charles Schwab Investment Management Inc | 3,607,721 | $158.6M | 0.06% | +44,206+1.2% | Added |
| Northern Trust Corp | 3,195,274 | $140.5M | 0.03% | −148,285−4.4% | Reduced |
| Bank of New York Mellon Corp | 2,998,806 | $131.9M | 0.03% | −6,685−0.2% | Reduced |
| Epoch Investment Partners, Inc. | 2,660,210 | $117.0M | 0.76% | −47,924−1.8% | Reduced |
| Legal & General Group Plc | 2,149,057 | $94.5M | 0.04% | +56,966+2.7% | Added |
| Norges Bank | 1,812,334 | $79.7M | 0.02% | −617,066−25.4% | Reduced |
| Sumitomo Mitsui Trust Holdings, Inc. | 1,714,203 | $75.4M | 0.06% | −104,253−5.7% | Reduced |
| JPMorgan Chase & Co | 1,643,749 | $72.3M | 0.01% | −273,534−14.3% | Reduced |
| Neuberger Berman Group LLC | 1,367,319 | $60.2M | 0.06% | +753,405+122.7% | Added |
| Intech Investment Management LLC | 1,299,806 | $57.2M | 0.43% | −43,688−3.3% | Reduced |
| Swiss National Bank | 1,259,147 | $55.4M | 0.04% | +2,200+0.2% | Added |
| CIBC Private Wealth Group, LLC | 1,231,064 | $54.1M | 0.15% | +20,336+1.7% | Added |
| LSV Asset Management | 1,224,123 | $53.8M | 0.13% | −829,658−40.4% | Reduced |
| Rockefeller Capital Management L.P. | 1,081,591 | $47.6M | 0.25% | −2,683−0.2% | Reduced |
| UBS Asset Management Americas Inc | 990,156 | $43.5M | 0.02% | −91,679−8.5% | Reduced |
| Pacer Advisors, Inc. | 988,134 | $43.4M | 0.30% | −35,657−3.5% | Reduced |
| Nuveen Asset Management, LLC | 967,832 | $42.6M | 0.02% | −226,738−19.0% | Reduced |
| Royal Bank of Canada | 959,196 | $42.2M | 0.01% | −80,762−7.8% | Reduced |
| Agf Investments Inc. | 902,471 | $39.7M | 0.38% | +867,139+2,454.3% | Added |
| Goldman Sachs Group Inc | 879,938 | $38.7M | 0.01% | −64,158−6.8% | Reduced |
| DekaBank Deutsche Girozentrale | 880,609 | $38.4M | 0.11% | +776,302+744.2% | Added |
| Canada Pension Plan Investment Board | 867,590 | $38.1M | 0.06% | +867,580+8,675,800.0% | Added |
| Russell Investments Group, Ltd. | 835,796 | $36.7M | 0.08% | +781,609+1,442.4% | Added |
| Bank of America Corp | 834,401 | $36.7M | 0.00% | −22,574−2.6% | Reduced |
| First Republic Investment Management, Inc. | 772,637 | $34.0M | 0.09% | +29,458+4.0% | Added |
| Border to Coast Pensions Partnership Ltd | 746,040 | $32.8M | 1.06% | −200,000−21.1% | Reduced |
| Welch & Forbes LLC | 738,058 | $32.5M | 0.63% | −991−0.1% | Reduced |
| Wells Fargo & Company | 699,724 | $30.8M | 0.01% | −60,014−7.9% | Reduced |
| Cohen & Steers, Inc. | 693,660 | $30.5M | 0.07% | +693,499+430,744.7% | Added |
| California Public Employees Retirement System | 667,636 | $29.4M | 0.03% | +81,875+14.0% | Added |
| Wellington Management Group LLP | 662,716 | $29.1M | 0.01% | +640,434+2,874.2% | Added |
| Asset Management One Co.,Ltd. | 627,265 | $27.6M | 0.14% | −15,058−2.3% | Reduced |
| American Century Companies Inc | 606,854 | $26.7M | 0.02% | −111,020−15.5% | Reduced |
| Barclays PLC | 587,785 | $25.8M | 0.03% | +139,514+31.1% | Added |
| Bank of Montreal | 466,431 | $25.8M | 0.02% | +19,691+4.4% | Added |
| Rhumbline Advisers | 580,917 | $25.5M | 0.04% | +15,482+2.7% | Added |
| UBS Group AG | 567,821 | $25.0M | 0.01% | −32,566−5.4% | Reduced |
| Envestnet Asset Management Inc | 566,191 | $24.9M | 0.01% | −6,219−1.1% | Reduced |
| Stifel Financial Corp | 550,817 | $24.2M | 0.04% | +104,550+23.4% | Added |
| National Pension Service | 501,601 | $22.0M | 0.05% | −29,045−5.5% | Reduced |
| California State Teachers Retirement System | 487,182 | $21.4M | 0.04% | −4,256−0.9% | Reduced |
| Handelsbanken Fonder AB | 487,046 | $21.4M | 0.14% | +11,493+2.4% | Added |
| Ameriprise Financial Inc | 485,072 | $21.4M | 0.01% | +7,092+1.5% | Added |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 480,669 | $21.1M | 0.04% | −82,569−14.7% | Reduced |
| Prudential Financial Inc | 474,814 | $20.8M | 0.04% | +228,410+92.7% | Added |
| Marble Harbor Investment Counsel, LLC | 467,940 | $20.6M | 3.14% | +1,910+0.4% | Added |
| Voya Investment Management LLC | 460,529 | $20.2M | 0.02% | −44,670−8.8% | Reduced |
| Alliancebernstein L.P. | 458,251 | $20.1M | 0.01% | −513−0.1% | Reduced |
| Price T Rowe Associates Inc | 445,574 | $19.6M | 0.00% | −3,793−0.8% | Reduced |
| LPL Financial LLC | 407,877 | $17.9M | 0.02% | +4,838+1.2% | Added |
| Mirae Asset Global Investments Co., Ltd. | 407,501 | $17.9M | 0.05% | −6,024−1.5% | Reduced |
| Cbre Clarion Securities LLC | 404,621 | $17.8M | 0.32% | −138,379−25.5% | Reduced |
| Cookson Peirce & Co Inc | 404,246 | $17.8M | 1.25% | +6,204+1.6% | Added |
| Raymond James & Associates | 398,614 | $17.5M | 0.02% | −11,219−2.7% | Reduced |
| Citigroup Inc | 394,610 | $17.4M | 0.02% | +108,368+37.9% | Added |
| Credit Suisse AG | 390,015 | $17.1M | 0.02% | +44,642+12.9% | Added |
| Nomura Asset Management Co Ltd | 362,909 | $16.0M | 0.10% | +18,549+5.4% | Added |
| Principal Financial Group Inc | 362,671 | $15.9M | 0.01% | −10,906−2.9% | Reduced |
| Avalon Investment & Advisory | 359,646 | $15.8M | 0.49% | +35,188+10.8% | Added |
| Blair William & Co | 356,845 | $15.7M | 0.07% | +82,162+29.9% | Added |
| New York State Teachers Retirement System | 340,878 | $15.0M | 0.04% | −920.0% | Reduced |
| Dana Investment Advisors, Inc. | 339,035 | $14.9M | 0.85% | −23,034−6.4% | Reduced |
| State Board of Administration of Florida Retirement System | 330,222 | $14.5M | 0.04% | −4,195−1.3% | Reduced |
| New York State Common Retirement Fund | 329,300 | $14.5M | 0.02% | −10,149−3.0% | Reduced |
| United Bank | 327,749 | $14.4M | 2.22% | +173+0.1% | Added |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 321,251 | $14.1M | 0.05% | +27,416+9.3% | Added |
| Great West Life Assurance Co | 318,618 | $14.0M | 0.04% | +2,962+0.9% | Added |
| TD Asset Management Inc | 318,947 | $14.0M | 0.02% | +6,092+1.9% | Added |
| Allianz Asset Management GmbH | 316,435 | $13.9M | 0.03% | +27,040+9.3% | Added |
| Adell Harriman & Carpenter Inc | 307,293 | $13.5M | 1.64% | +14,095+4.8% | Added |
| AXA S.A. | 307,082 | $13.5M | 0.05% | +65,625+27.2% | Added |
| STRS Ohio | 303,963 | $13.4M | 0.06% | −31,855−9.5% | Reduced |
| Millennium Management LLC | 302,736 | $13.3M | 0.02% | −426,331−58.5% | Reduced |
| ExodusPoint Capital Management, LP | 298,516 | $13.1M | 0.18% | +178,637+149.0% | Added |
| Adage Capital Partners GP, L.L.C. | 296,152 | $13.0M | 0.03% | −6,500−2.1% | Reduced |
| Swedbank AB | 295,455 | $13.0M | 0.03% | +9,609+3.4% | Added |
| Aviva PLC | 289,641 | $12.7M | 0.07% | +54,733+23.3% | Added |
| Retirement Systems of Alabama | 278,982 | $12.3M | 0.06% | −7,052−2.5% | Reduced |
| Marshall Wace, LLP | 274,271 | $12.1M | 0.03% | +274,271 | New |
| Captrust Financial Advisors | 263,713 | $11.6M | 0.07% | +263,713 | New |
| HSBC Holdings PLC | 258,829 | $11.4M | 0.02% | −6,485−2.4% | Reduced |
| Commerce Bank | 257,079 | $11.3M | 0.10% | +276+0.1% | Added |
| Brookstone Capital Management | 247,251 | $11.2M | 0.26% | +14,317+6.1% | Added |
| Hall Private Wealth Advisors | 246,543 | $10.8M | 6.24% | +15,172+6.6% | Added |
| Mitsubishi UFJ Trust & Banking Corp | 243,640 | $10.7M | 0.03% | +39,406+19.3% | Added |
| United Capital Financial Advisers, LLC | 237,716 | $10.5M | 0.06% | −26,032−9.9% | Reduced |
| Crossmark Global Holdings, Inc. | 225,320 | $9.91M | 0.27% | +754+0.3% | Added |
| Raymond James Financial Services Advisors, Inc. | 223,967 | $9.85M | 0.02% | −12,032−5.1% | Reduced |