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, Q1 2022
Institutional positions in Iron Mountain Inc as of Mar 31, 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
- 777
- +34 vs. Q4 2021
- Shares held
- 224.6M
- −3.39M (−1.5%) vs. Q4 2021
- Total value
- $12.4B
- +$518.2M (+4.3%) vs. Q4 2021
- New holders
- 90
- 295 more added
- Sold out
- 56
- 272 more reduced
11 institutions that held it in Q4 2021 haven't filed for Q1 2022 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2021: 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 2022
Shares, value and share of portfolio for each institution holding Iron Mountain Inc; share changes are against Q4 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Vanguard Group Inc | 48,335,714 | $2.68B | 0.06% | −96,443−0.2% | Reduced |
| Capital World Investors | 28,901,002 | $1.60B | 0.28% | −3,812,758−11.7% | Reduced |
| BlackRock Inc. | 22,916,270 | $1.27B | 0.03% | −81,826−0.4% | Reduced |
| State Street Corp | 14,622,009 | $819.0M | 0.04% | +261,765+1.8% | Added |
| Geode Capital Management, LLC | 6,600,610 | $365.0M | 0.05% | +187,475+2.9% | Added |
| Northern Trust Corp | 4,187,660 | $232.0M | 0.04% | −371,505−8.1% | Reduced |
| Dimensional Fund Advisors LP | 4,065,433 | $225.3M | 0.07% | −84,543−2.0% | Reduced |
| Morgan Stanley | 4,049,948 | $224.4M | 0.03% | +1,195,066+41.9% | Added |
| FMR LLC | 3,997,382 | $221.5M | 0.02% | +16,439+0.4% | Added |
| Charles Schwab Investment Management Inc | 3,566,592 | $197.6M | 0.06% | +103,470+3.0% | Added |
| Amundi | 3,528,758 | $195.7M | 0.13% | +2,874,471+439.3% | Added |
| Epoch Investment Partners, Inc. | 2,917,218 | $161.6M | 0.79% | +218,529+8.1% | Added |
| Bank of New York Mellon Corp | 2,894,194 | $160.4M | 0.03% | −258,791−8.2% | Reduced |
| Norges Bank | 2,856,728 | $158.3M | 0.03% | −16,651−0.6% | Reduced |
| LSV Asset Management | 2,688,011 | $148.9M | 0.27% | −34,157−1.3% | Reduced |
| JPMorgan Chase & Co | 2,183,560 | $121.0M | 0.02% | −301,368−12.1% | Reduced |
| Invesco Ltd. | 2,046,350 | $113.4M | 0.03% | −2,258,605−52.5% | Reduced |
| Legal & General Group Plc | 2,013,853 | $111.6M | 0.03% | +153,808+8.3% | Added |
| Pictet Asset Management SA | 1,707,484 | $94.6M | 0.11% | +1,521,479+818.0% | Added |
| Deutsche Bank AG | 1,624,025 | $90.0M | 0.04% | −258,112−13.7% | Reduced |
| Sumitomo Mitsui Trust Holdings, Inc. | 1,368,732 | $75.8M | 0.05% | +26,641+2.0% | Added |
| Swiss National Bank | 1,254,147 | $69.5M | 0.04% | +154,300+14.0% | Added |
| Pacer Advisors, Inc. | 1,214,217 | $67.3M | 0.55% | −328,091−21.3% | Reduced |
| UBS Asset Management Americas Inc | 1,167,103 | $64.7M | 0.03% | −47,822−3.9% | Reduced |
| Rockefeller Capital Management L.P. | 1,113,093 | $61.7M | 0.30% | −40,779−3.5% | Reduced |
| Janus Henderson Group PLC | 1,101,229 | $61.0M | 0.03% | −477,743−30.3% | Reduced |
| Royal Bank of Canada | 1,069,486 | $59.3M | 0.02% | +526,994+97.1% | Added |
| Parametric Portfolio Associates LLC | 1,059,429 | $58.7M | 0.03% | −36,493−3.3% | Reduced |
| Border to Coast Pensions Partnership Ltd | 1,046,040 | $57.8M | 1.65% | +1,046,040 | New |
| Nuveen Asset Management, LLC | 1,025,247 | $51.4M | 0.02% | −54,759−5.1% | Reduced |
| Wells Fargo & Company | 899,581 | $49.8M | 0.01% | −37,374−4.0% | Reduced |
| Goldman Sachs Group Inc | 887,715 | $49.2M | 0.01% | −176,124−16.6% | Reduced |
| Bank of America Corp | 825,064 | $45.7M | 0.00% | −296,886−26.5% | Reduced |
| First Republic Investment Management, Inc. | 748,128 | $41.5M | 0.09% | −1,790−0.2% | Reduced |
| Welch & Forbes LLC | 747,046 | $41.4M | 0.65% | +27,237+3.8% | Added |
| Bank of Montreal | 735,013 | $40.8M | 0.02% | +322,238+78.1% | Added |
| CIBC Private Wealth Group, LLC | 735,591 | $40.8M | 0.09% | +675,695+1,128.1% | Added |
| UBS Group AG | 710,312 | $39.4M | 0.02% | +119,844+20.3% | Added |
| Asset Management One Co.,Ltd. | 705,525 | $39.1M | 0.15% | −38,833−5.2% | Reduced |
| California Public Employees Retirement System | 601,423 | $33.3M | 0.03% | −44,847−6.9% | Reduced |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 577,030 | $32.0M | 0.05% | +273,788+90.3% | Added |
| Envestnet Asset Management Inc | 574,604 | $31.8M | 0.02% | +73,629+14.7% | Added |
| Cbre Clarion Securities LLC | 556,000 | $30.8M | 0.43% | +20,000+3.7% | Added |
| National Pension Service | 518,482 | $28.7M | 0.05% | +435,237+522.8% | Added |
| Rhumbline Advisers | 517,581 | $28.7M | 0.04% | −19,988−3.7% | Reduced |
| Ameriprise Financial Inc | 514,971 | $28.5M | 0.01% | +20,160+4.1% | Added |
| Alliancebernstein L.P. | 494,694 | $27.4M | 0.01% | +8,818+1.8% | Added |
| California State Teachers Retirement System | 490,565 | $27.2M | 0.04% | −27,724−5.3% | Reduced |
| Price T Rowe Associates Inc | 481,767 | $26.7M | 0.00% | −24,097−4.8% | Reduced |
| American Century Companies Inc | 475,087 | $26.3M | 0.02% | −592,165−55.5% | Reduced |
| Stifel Financial Corp | 468,998 | $26.0M | 0.04% | −5,312−1.1% | Reduced |
| Marble Harbor Investment Counsel, LLC | 466,040 | $25.8M | 3.21% | −9,009−1.9% | Reduced |
| Barclays PLC | 451,140 | $25.0M | 0.02% | −301,236−40.0% | Reduced |
| Handelsbanken Fonder AB | 450,154 | $24.9M | 0.14% | −19,674−4.2% | Reduced |
| Raymond James & Associates | 422,914 | $23.4M | 0.02% | −21,172−4.8% | Reduced |
| AXA S.A. | 414,100 | $22.9M | 0.07% | −33,500−7.5% | Reduced |
| Voya Investment Management LLC | 411,968 | $22.8M | 0.05% | +29,175+7.6% | Added |
| LPL Financial LLC | 388,785 | $21.5M | 0.02% | −11,536−2.9% | Reduced |
| Cookson Peirce & Co Inc | 388,560 | $21.5M | 1.26% | +8,663+2.3% | Added |
| Mirae Asset Global Investments Co., Ltd. | 386,004 | $21.4M | 0.04% | −734,955−65.6% | Reduced |
| Allianz Asset Management GmbH | 381,491 | $21.1M | 0.02% | −355,023−48.2% | Reduced |
| Natixis | 375,159 | $20.8M | 0.07% | +116,341+45.0% | Added |
| Dana Investment Advisors, Inc. | 367,932 | $20.4M | 0.94% | +361,232+5,391.5% | Added |
| PGGM Investments | 386,721 | $20.2M | 0.10% | 00.0% | Unchanged |
| AustralianSuper Pty Ltd | 361,585 | $20.0M | 0.12% | +298+0.1% | Added |
| Principal Financial Group Inc | 359,422 | $19.9M | 0.01% | −3,906−1.1% | Reduced |
| New York State Common Retirement Fund | 355,259 | $19.7M | 0.02% | +8,108+2.3% | Added |
| United Bank | 349,829 | $19.4M | 2.55% | −24,244−6.5% | Reduced |
| State Board of Administration of Florida Retirement System | 348,748 | $19.3M | 0.04% | −1,877−0.5% | Reduced |
| STRS Ohio | 346,697 | $19.2M | 0.07% | −7,682−2.2% | Reduced |
| Credit Suisse AG | 340,435 | $18.9M | 0.02% | +11,395+3.5% | Added |
| New York State Teachers Retirement System | 339,045 | $18.8M | 0.04% | +1,667+0.5% | Added |
| Nomura Asset Management Co Ltd | 334,824 | $18.6M | 0.10% | −10,630−3.1% | Reduced |
| Great West Life Assurance Co | 308,387 | $18.0M | 0.04% | +8,330+2.8% | Added |
| Avalon Investment & Advisory | 323,791 | $17.9M | 0.43% | +3,990+1.2% | Added |
| TD Asset Management Inc | 303,152 | $16.8M | 0.02% | −3,061−1.0% | Reduced |
| Adage Capital Partners GP, L.L.C. | 302,352 | $16.8M | 0.03% | −6,200−2.0% | Reduced |
| Swedbank AB | 290,249 | $16.1M | 0.03% | +4,756+1.7% | Added |
| Retirement Systems of Alabama | 289,229 | $16.0M | 0.06% | −2,809−1.0% | Reduced |
| Adell Harriman & Carpenter Inc | 283,273 | $15.7M | 1.53% | −2,787−1.0% | Reduced |
| Boston Common Asset Management, LLC | 280,510 | $15.5M | 0.67% | −48,202−14.7% | Reduced |
| Blair William & Co | 278,263 | $15.4M | 0.05% | +7,865+2.9% | Added |
| Raymond James Financial Services Advisors, Inc. | 275,277 | $15.3M | 0.03% | +7,887+2.9% | Added |
| Hall Private Wealth Advisors | 274,186 | $15.2M | 8.11% | +26,625+10.8% | Added |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 272,843 | $15.1M | 0.06% | +19,713+7.8% | Added |
| Citigroup Inc | 270,613 | $15.0M | 0.02% | −74,704−21.6% | Reduced |
| Mitsubishi UFJ Trust & Banking Corp | 268,413 | $14.9M | 0.03% | −3,379−1.2% | Reduced |
| HSBC Holdings PLC | 267,315 | $14.8M | 0.02% | −59,326−18.2% | Reduced |
| United Capital Financial Advisers, LLC | 263,554 | $14.6M | 0.07% | −4,794−1.8% | Reduced |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 261,950 | $14.5M | 0.07% | +149,402+132.7% | Added |
| Commerce Bank | 256,795 | $14.2M | 0.10% | +2,741+1.1% | Added |
| Prudential Financial Inc | 249,434 | $13.8M | 0.02% | −1,233−0.5% | Reduced |
| TCW Group Inc | 234,595 | $13.0M | 0.12% | −9,390−3.8% | Reduced |
| Dai-Ichi Life Insurance Company, Ltd | 219,805 | $12.2M | 0.19% | +10,000+4.8% | Added |
| Crossmark Global Holdings, Inc. | 218,383 | $12.1M | 0.27% | −1,152−0.5% | Reduced |
| Manufacturers Life Insurance Company, The | 215,106 | $11.9M | 0.01% | −38,024−15.0% | Reduced |
| Allspring Global Investments Holdings, LLC | 208,684 | $11.6M | 0.01% | −39,022−15.8% | Reduced |
| Robeco Institutional Asset Management B.V. | 206,685 | $11.5M | 0.03% | −31,121−13.1% | Reduced |
| Gilman Hill Asset Management, LLC | 199,882 | $11.1M | 2.52% | +3,444+1.8% | Added |
| Vancity Investment Management Ltd | 197,849 | $11.0M | 1.30% | −4,512−2.2% | Reduced |