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 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 |
|---|---|---|---|---|---|
| TD Asset Management Inc | 303,152 | $16.8M | 0.02% | −3,061−1.0% | Reduced |
| Avalon Investment & Advisory | 323,791 | $17.9M | 0.43% | +3,990+1.2% | Added |
| Great West Life Assurance Co | 308,387 | $18.0M | 0.04% | +8,330+2.8% | Added |
| Nomura Asset Management Co Ltd | 334,824 | $18.6M | 0.10% | −10,630−3.1% | Reduced |
| New York State Teachers Retirement System | 339,045 | $18.8M | 0.04% | +1,667+0.5% | Added |
| Credit Suisse AG | 340,435 | $18.9M | 0.02% | +11,395+3.5% | Added |
| STRS Ohio | 346,697 | $19.2M | 0.07% | −7,682−2.2% | Reduced |
| State Board of Administration of Florida Retirement System | 348,748 | $19.3M | 0.04% | −1,877−0.5% | Reduced |
| United Bank | 349,829 | $19.4M | 2.55% | −24,244−6.5% | Reduced |
| New York State Common Retirement Fund | 355,259 | $19.7M | 0.02% | +8,108+2.3% | Added |
| Principal Financial Group Inc | 359,422 | $19.9M | 0.01% | −3,906−1.1% | Reduced |
| AustralianSuper Pty Ltd | 361,585 | $20.0M | 0.12% | +298+0.1% | Added |
| PGGM Investments | 386,721 | $20.2M | 0.10% | 00.0% | Unchanged |
| Dana Investment Advisors, Inc. | 367,932 | $20.4M | 0.94% | +361,232+5,391.5% | Added |
| Natixis | 375,159 | $20.8M | 0.07% | +116,341+45.0% | Added |
| Allianz Asset Management GmbH | 381,491 | $21.1M | 0.02% | −355,023−48.2% | Reduced |
| Mirae Asset Global Investments Co., Ltd. | 386,004 | $21.4M | 0.04% | −734,955−65.6% | Reduced |
| Cookson Peirce & Co Inc | 388,560 | $21.5M | 1.26% | +8,663+2.3% | Added |
| LPL Financial LLC | 388,785 | $21.5M | 0.02% | −11,536−2.9% | Reduced |
| Voya Investment Management LLC | 411,968 | $22.8M | 0.05% | +29,175+7.6% | Added |
| AXA S.A. | 414,100 | $22.9M | 0.07% | −33,500−7.5% | Reduced |
| Raymond James & Associates | 422,914 | $23.4M | 0.02% | −21,172−4.8% | Reduced |
| Handelsbanken Fonder AB | 450,154 | $24.9M | 0.14% | −19,674−4.2% | Reduced |
| Barclays PLC | 451,140 | $25.0M | 0.02% | −301,236−40.0% | Reduced |
| Marble Harbor Investment Counsel, LLC | 466,040 | $25.8M | 3.21% | −9,009−1.9% | Reduced |
| Stifel Financial Corp | 468,998 | $26.0M | 0.04% | −5,312−1.1% | Reduced |
| American Century Companies Inc | 475,087 | $26.3M | 0.02% | −592,165−55.5% | Reduced |
| Price T Rowe Associates Inc | 481,767 | $26.7M | 0.00% | −24,097−4.8% | Reduced |
| California State Teachers Retirement System | 490,565 | $27.2M | 0.04% | −27,724−5.3% | Reduced |
| Alliancebernstein L.P. | 494,694 | $27.4M | 0.01% | +8,818+1.8% | Added |
| Ameriprise Financial Inc | 514,971 | $28.5M | 0.01% | +20,160+4.1% | Added |
| Rhumbline Advisers | 517,581 | $28.7M | 0.04% | −19,988−3.7% | Reduced |
| National Pension Service | 518,482 | $28.7M | 0.05% | +435,237+522.8% | Added |
| Cbre Clarion Securities LLC | 556,000 | $30.8M | 0.43% | +20,000+3.7% | Added |
| Envestnet Asset Management Inc | 574,604 | $31.8M | 0.02% | +73,629+14.7% | Added |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 577,030 | $32.0M | 0.05% | +273,788+90.3% | Added |
| California Public Employees Retirement System | 601,423 | $33.3M | 0.03% | −44,847−6.9% | Reduced |
| Asset Management One Co.,Ltd. | 705,525 | $39.1M | 0.15% | −38,833−5.2% | Reduced |
| UBS Group AG | 710,312 | $39.4M | 0.02% | +119,844+20.3% | Added |
| CIBC Private Wealth Group, LLC | 735,591 | $40.8M | 0.09% | +675,695+1,128.1% | Added |
| Bank of Montreal | 735,013 | $40.8M | 0.02% | +322,238+78.1% | Added |
| Welch & Forbes LLC | 747,046 | $41.4M | 0.65% | +27,237+3.8% | Added |
| First Republic Investment Management, Inc. | 748,128 | $41.5M | 0.09% | −1,790−0.2% | Reduced |
| Bank of America Corp | 825,064 | $45.7M | 0.00% | −296,886−26.5% | Reduced |
| Goldman Sachs Group Inc | 887,715 | $49.2M | 0.01% | −176,124−16.6% | Reduced |
| Wells Fargo & Company | 899,581 | $49.8M | 0.01% | −37,374−4.0% | Reduced |
| Nuveen Asset Management, LLC | 1,025,247 | $51.4M | 0.02% | −54,759−5.1% | Reduced |
| Border to Coast Pensions Partnership Ltd | 1,046,040 | $57.8M | 1.65% | +1,046,040 | New |
| Parametric Portfolio Associates LLC | 1,059,429 | $58.7M | 0.03% | −36,493−3.3% | Reduced |
| Royal Bank of Canada | 1,069,486 | $59.3M | 0.02% | +526,994+97.1% | Added |
| Janus Henderson Group PLC | 1,101,229 | $61.0M | 0.03% | −477,743−30.3% | Reduced |
| Rockefeller Capital Management L.P. | 1,113,093 | $61.7M | 0.30% | −40,779−3.5% | Reduced |
| UBS Asset Management Americas Inc | 1,167,103 | $64.7M | 0.03% | −47,822−3.9% | Reduced |
| Pacer Advisors, Inc. | 1,214,217 | $67.3M | 0.55% | −328,091−21.3% | Reduced |
| Swiss National Bank | 1,254,147 | $69.5M | 0.04% | +154,300+14.0% | Added |
| Sumitomo Mitsui Trust Holdings, Inc. | 1,368,732 | $75.8M | 0.05% | +26,641+2.0% | Added |
| Deutsche Bank AG | 1,624,025 | $90.0M | 0.04% | −258,112−13.7% | Reduced |
| Pictet Asset Management SA | 1,707,484 | $94.6M | 0.11% | +1,521,479+818.0% | Added |
| Legal & General Group Plc | 2,013,853 | $111.6M | 0.03% | +153,808+8.3% | Added |
| Invesco Ltd. | 2,046,350 | $113.4M | 0.03% | −2,258,605−52.5% | Reduced |
| JPMorgan Chase & Co | 2,183,560 | $121.0M | 0.02% | −301,368−12.1% | Reduced |
| LSV Asset Management | 2,688,011 | $148.9M | 0.27% | −34,157−1.3% | Reduced |
| Norges Bank | 2,856,728 | $158.3M | 0.03% | −16,651−0.6% | Reduced |
| Bank of New York Mellon Corp | 2,894,194 | $160.4M | 0.03% | −258,791−8.2% | Reduced |
| Epoch Investment Partners, Inc. | 2,917,218 | $161.6M | 0.79% | +218,529+8.1% | Added |
| Amundi | 3,528,758 | $195.7M | 0.13% | +2,874,471+439.3% | Added |
| Charles Schwab Investment Management Inc | 3,566,592 | $197.6M | 0.06% | +103,470+3.0% | Added |
| FMR LLC | 3,997,382 | $221.5M | 0.02% | +16,439+0.4% | Added |
| Morgan Stanley | 4,049,948 | $224.4M | 0.03% | +1,195,066+41.9% | Added |
| Dimensional Fund Advisors LP | 4,065,433 | $225.3M | 0.07% | −84,543−2.0% | Reduced |
| Northern Trust Corp | 4,187,660 | $232.0M | 0.04% | −371,505−8.1% | Reduced |
| Geode Capital Management, LLC | 6,600,610 | $365.0M | 0.05% | +187,475+2.9% | Added |
| State Street Corp | 14,622,009 | $819.0M | 0.04% | +261,765+1.8% | Added |
| BlackRock Inc. | 22,916,270 | $1.27B | 0.03% | −81,826−0.4% | Reduced |
| Capital World Investors | 28,901,002 | $1.60B | 0.28% | −3,812,758−11.7% | Reduced |
| Vanguard Group Inc | 48,335,714 | $2.68B | 0.06% | −96,443−0.2% | Reduced |
| Westside Investment Management, Inc. | 276 | – | – | +250+961.5% | Added |
| WBI Investments | 0 | $0 | 0.00% | −103,173−100.0% | Sold out |
| ETF Managers Group, LLC | 0 | $0 | 0.00% | −88,469−100.0% | Sold out |
| Peak Financial Advisors LLC | 0 | $0 | 0.00% | −76,979−100.0% | Sold out |
| Advisors Asset Management, Inc. | 0 | $0 | 0.00% | −69,374−100.0% | Sold out |
| Pinebridge Investments, L.P. | 0 | $0 | 0.00% | −67,548−100.0% | Sold out |
| Searle & Co. | 0 | $0 | 0.00% | −45,200−100.0% | Sold out |
| Virtus ETF Advisers LLC | 0 | $0 | 0.00% | −43,963−100.0% | Sold out |
| Roberts Wealth Advisors, LLC | 0 | $0 | 0.00% | −40,424−100.0% | Sold out |
| Jefferies Group LLC | 0 | $0 | 0.00% | −34,500−100.0% | Sold out |
| Redwood Investment Management, LLC | 0 | $0 | 0.00% | −33,486−100.0% | Sold out |
| Churchill Management Corp | 0 | $0 | 0.00% | −31,559−100.0% | Sold out |
| Convergence Investment Partners, LLC | 0 | $0 | 0.00% | −27,059−100.0% | Sold out |
| Brookfield Asset Management Inc. | 0 | $0 | 0.00% | −25,113−100.0% | Sold out |
| Thompson Investment Management, Inc. | 0 | $0 | 0.00% | −24,169−100.0% | Sold out |
| Polar Asset Management Partners Inc. | 0 | $0 | 0.00% | −23,038−100.0% | Sold out |
| Slow Capital, Inc. | 0 | $0 | 0.00% | −20,244−100.0% | Sold out |
| Twin Tree Management, LP | 0 | $0 | 0.00% | −18,330−100.0% | Sold out |
| Quantitative Investment Management, LLC | 0 | $0 | 0.00% | −15,237−100.0% | Sold out |
| Ossiam | 0 | $0 | 0.00% | −14,278−100.0% | Sold out |
| SMH Capital Advisors Inc | 0 | $0 | 0.00% | −13,986−100.0% | Sold out |
| Paloma Partners Management Co | 0 | $0 | 0.00% | −9,610−100.0% | Sold out |
| Assenagon Asset Management S.A. | 0 | $0 | 0.00% | −8,382−100.0% | Sold out |
| DCM Advisors, LLC | 0 | $0 | 0.00% | −8,108−100.0% | Sold out |