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, 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 |
|---|---|---|---|---|---|
| Azimuth Capital Investment Management LLC | 109,240 | $4.80M | 0.26% | −5,585−4.9% | Reduced |
| Swiss Life Asset Management Ltd | 110,753 | $4.87M | 0.08% | +12,877+13.2% | Added |
| Cambridge Investment Research Advisors, Inc. | 118,458 | $5.21M | 0.03% | +6,413+5.7% | Added |
| CIBC World Markets Corp | 123,407 | $5.43M | 0.08% | −21,338−14.7% | Reduced |
| BNP Paribas Arbitrage, SA | 123,642 | $5.44M | 0.01% | −20,898−14.5% | Reduced |
| Natixis Advisors, L.P. | 125,289 | $5.51M | 0.02% | +7,920+6.7% | Added |
| EWG Elevate Inc. | 127,532 | $5.61M | 3.16% | +1,466+1.2% | Added |
| Natixis | 130,211 | $5.72M | 0.03% | −128,969−49.8% | Reduced |
| Treasurer of the State of North Carolina | 130,477 | $5.74M | 0.04% | +1,660+1.3% | Added |
| SEI Investments Co | 130,610 | $5.74M | 0.01% | +29,251+28.9% | Added |
| Ar Asset Management Inc | 131,600 | $5.79M | 1.73% | 00.0% | Unchanged |
| Renaissance Technologies LLC | 134,500 | $5.91M | 0.01% | −143,200−51.6% | Reduced |
| Standard Life Aberdeen plc | 136,981 | $6.02M | 0.02% | +37,498+37.7% | Added |
| Victory Capital Management Inc | 142,112 | $6.25M | 0.01% | +5,184+3.8% | Added |
| Snowden Capital Advisors LLC | 142,437 | $6.26M | 0.28% | −5,565−3.8% | Reduced |
| WealthTrust Axiom LLC | 143,563 | $6.31M | 2.41% | −2,041−1.4% | Reduced |
| Ardsley Advisory Partners LP | 145,000 | $6.38M | 1.68% | +30,000+26.1% | Added |
| Nisa Investment Advisors, LLC | 146,252 | $6.43M | 0.05% | +8,594+6.2% | Added |
| Janney Montgomery Scott LLC | 146,732 | $6.45M | 0.03% | −15,087−9.3% | Reduced |
| Public Employees Retirement System of Ohio | 151,964 | $6.68M | 0.03% | +1,384+0.9% | Added |
| Toronto Dominion Bank | 154,591 | $6.79M | 0.01% | −5,140−3.2% | Reduced |
| State of New Jersey Common Pension Fund D | 163,879 | $7.21M | 0.03% | 00.0% | Unchanged |
| Mutual Advisors, LLC | 167,517 | $7.37M | 0.39% | −1,991−1.2% | Reduced |
| Advisor Group Holdings, Inc. | 170,158 | $7.48M | 0.02% | −25,996−13.3% | Reduced |
| Trust Co of Virginia | 170,769 | $7.51M | 0.96% | +4,920+3.0% | Added |
| Sheaff Brock Investment Advisors, LLC | 175,307 | $7.71M | 0.94% | −4,654−2.6% | Reduced |
| Chevy Chase Trust Holdings, Inc. | 177,496 | $7.80M | 0.03% | +2,024+1.2% | Added |
| Guggenheim Capital LLC | 179,479 | $7.89M | 0.07% | +20,585+13.0% | Added |
| First Trust Advisors LP | 182,696 | $8.03M | 0.01% | −119,022−39.4% | Reduced |
| Commonwealth Equity Services, LLC | 184,415 | $8.11M | 0.02% | +4,085+2.3% | Added |
| State of Alaska, Department of Revenue | 185,126 | $8.14M | 0.11% | +1,992+1.1% | Added |
| Storebrand Asset Management AS | 185,811 | $8.17M | 0.05% | −840−0.5% | Reduced |
| La Financiere de L'Echiquier | 186,103 | $8.18M | 0.52% | +17,100+10.1% | Added |
| Susquehanna Fundamental Investments, LLC | 187,118 | $8.23M | 0.14% | +187,118 | New |
| Korea Investment CORP | 188,715 | $8.30M | 0.03% | +99,501+111.5% | Added |
| Citadel Advisors LLC | 188,910 | $8.31M | 0.01% | −54,421−22.4% | Reduced |
| Sargent Investment Group, LLC | 181,670 | $8.36M | 2.60% | +5,965+3.4% | Added |
| Robeco Institutional Asset Management B.V. | 200,402 | $8.81M | 0.03% | +110,720+123.5% | Added |
| Cinctive Capital Management LP | 200,425 | $8.81M | 0.40% | +148,682+287.3% | Added |
| Gilman Hill Asset Management, LLC | 202,430 | $8.90M | 2.08% | +15,704+8.4% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 203,315 | $8.94M | 0.05% | −90,661−30.8% | Reduced |
| Manufacturers Life Insurance Company, The | 220,190 | $9.68M | 0.01% | −17,908−7.5% | Reduced |
| Raymond James Financial Services Advisors, Inc. | 223,967 | $9.85M | 0.02% | −12,032−5.1% | Reduced |
| Crossmark Global Holdings, Inc. | 225,320 | $9.91M | 0.27% | +754+0.3% | Added |
| United Capital Financial Advisers, LLC | 237,716 | $10.5M | 0.06% | −26,032−9.9% | Reduced |
| Mitsubishi UFJ Trust & Banking Corp | 243,640 | $10.7M | 0.03% | +39,406+19.3% | Added |
| Hall Private Wealth Advisors | 246,543 | $10.8M | 6.24% | +15,172+6.6% | Added |
| Brookstone Capital Management | 247,251 | $11.2M | 0.26% | +14,317+6.1% | Added |
| Commerce Bank | 257,079 | $11.3M | 0.10% | +276+0.1% | Added |
| HSBC Holdings PLC | 258,829 | $11.4M | 0.02% | −6,485−2.4% | Reduced |
| Captrust Financial Advisors | 263,713 | $11.6M | 0.07% | +263,713 | New |
| Marshall Wace, LLP | 274,271 | $12.1M | 0.03% | +274,271 | New |
| Retirement Systems of Alabama | 278,982 | $12.3M | 0.06% | −7,052−2.5% | Reduced |
| Aviva PLC | 289,641 | $12.7M | 0.07% | +54,733+23.3% | Added |
| Swedbank AB | 295,455 | $13.0M | 0.03% | +9,609+3.4% | Added |
| Adage Capital Partners GP, L.L.C. | 296,152 | $13.0M | 0.03% | −6,500−2.1% | Reduced |
| ExodusPoint Capital Management, LP | 298,516 | $13.1M | 0.18% | +178,637+149.0% | Added |
| Millennium Management LLC | 302,736 | $13.3M | 0.02% | −426,331−58.5% | Reduced |
| STRS Ohio | 303,963 | $13.4M | 0.06% | −31,855−9.5% | Reduced |
| AXA S.A. | 307,082 | $13.5M | 0.05% | +65,625+27.2% | Added |
| Adell Harriman & Carpenter Inc | 307,293 | $13.5M | 1.64% | +14,095+4.8% | Added |
| Allianz Asset Management GmbH | 316,435 | $13.9M | 0.03% | +27,040+9.3% | Added |
| TD Asset Management Inc | 318,947 | $14.0M | 0.02% | +6,092+1.9% | Added |
| Great West Life Assurance Co | 318,618 | $14.0M | 0.04% | +2,962+0.9% | Added |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 321,251 | $14.1M | 0.05% | +27,416+9.3% | Added |
| United Bank | 327,749 | $14.4M | 2.22% | +173+0.1% | Added |
| New York State Common Retirement Fund | 329,300 | $14.5M | 0.02% | −10,149−3.0% | Reduced |
| State Board of Administration of Florida Retirement System | 330,222 | $14.5M | 0.04% | −4,195−1.3% | Reduced |
| Dana Investment Advisors, Inc. | 339,035 | $14.9M | 0.85% | −23,034−6.4% | Reduced |
| New York State Teachers Retirement System | 340,878 | $15.0M | 0.04% | −920.0% | Reduced |
| Blair William & Co | 356,845 | $15.7M | 0.07% | +82,162+29.9% | Added |
| Avalon Investment & Advisory | 359,646 | $15.8M | 0.49% | +35,188+10.8% | Added |
| Principal Financial Group Inc | 362,671 | $15.9M | 0.01% | −10,906−2.9% | Reduced |
| Nomura Asset Management Co Ltd | 362,909 | $16.0M | 0.10% | +18,549+5.4% | Added |
| Credit Suisse AG | 390,015 | $17.1M | 0.02% | +44,642+12.9% | Added |
| Citigroup Inc | 394,610 | $17.4M | 0.02% | +108,368+37.9% | Added |
| Raymond James & Associates | 398,614 | $17.5M | 0.02% | −11,219−2.7% | Reduced |
| Cookson Peirce & Co Inc | 404,246 | $17.8M | 1.25% | +6,204+1.6% | Added |
| Cbre Clarion Securities LLC | 404,621 | $17.8M | 0.32% | −138,379−25.5% | Reduced |
| Mirae Asset Global Investments Co., Ltd. | 407,501 | $17.9M | 0.05% | −6,024−1.5% | Reduced |
| LPL Financial LLC | 407,877 | $17.9M | 0.02% | +4,838+1.2% | Added |
| Price T Rowe Associates Inc | 445,574 | $19.6M | 0.00% | −3,793−0.8% | Reduced |
| Alliancebernstein L.P. | 458,251 | $20.1M | 0.01% | −513−0.1% | Reduced |
| Voya Investment Management LLC | 460,529 | $20.2M | 0.02% | −44,670−8.8% | Reduced |
| Marble Harbor Investment Counsel, LLC | 467,940 | $20.6M | 3.14% | +1,910+0.4% | Added |
| Prudential Financial Inc | 474,814 | $20.8M | 0.04% | +228,410+92.7% | Added |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 480,669 | $21.1M | 0.04% | −82,569−14.7% | Reduced |
| Ameriprise Financial Inc | 485,072 | $21.4M | 0.01% | +7,092+1.5% | Added |
| Handelsbanken Fonder AB | 487,046 | $21.4M | 0.14% | +11,493+2.4% | Added |
| California State Teachers Retirement System | 487,182 | $21.4M | 0.04% | −4,256−0.9% | Reduced |
| National Pension Service | 501,601 | $22.0M | 0.05% | −29,045−5.5% | Reduced |
| Stifel Financial Corp | 550,817 | $24.2M | 0.04% | +104,550+23.4% | Added |
| Envestnet Asset Management Inc | 566,191 | $24.9M | 0.01% | −6,219−1.1% | Reduced |
| UBS Group AG | 567,821 | $25.0M | 0.01% | −32,566−5.4% | Reduced |
| Rhumbline Advisers | 580,917 | $25.5M | 0.04% | +15,482+2.7% | Added |
| Bank of Montreal | 466,431 | $25.8M | 0.02% | +19,691+4.4% | Added |
| Barclays PLC | 587,785 | $25.8M | 0.03% | +139,514+31.1% | Added |
| American Century Companies Inc | 606,854 | $26.7M | 0.02% | −111,020−15.5% | Reduced |
| Asset Management One Co.,Ltd. | 627,265 | $27.6M | 0.14% | −15,058−2.3% | Reduced |
| Wellington Management Group LLP | 662,716 | $29.1M | 0.01% | +640,434+2,874.2% | Added |