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 |
|---|---|---|---|---|---|
| Nissay Asset Management Corp | 60,412 | $3.35M | 0.03% | +983+1.7% | Added |
| DekaBank Deutsche Girozentrale | 59,315 | $3.33M | 0.01% | +6,933+13.2% | Added |
| Swarthmore Group Inc | 59,661 | $3.31M | 0.84% | +59,661 | New |
| Teacher Retirement System of Texas | 59,649 | $3.31M | 0.02% | +3,800+6.8% | Added |
| MML Investors Services, LLC | 58,629 | $3.25M | 0.02% | +5,312+10.0% | Added |
| Yousif Capital Management, LLC | 58,197 | $3.23M | 0.04% | +192+0.3% | Added |
| Banco Bilbao Vizcaya Argentaria, S.A. | 57,230 | $3.22M | 0.04% | −23,376−29.0% | Reduced |
| G&S Capital LLC | 58,139 | $3.22M | 1.72% | −25,485−30.5% | Reduced |
| Nepsis, Inc. | 57,907 | $3.21M | 0.96% | −1,987−3.3% | Reduced |
| CIBC Asset Management Inc | 57,921 | $3.21M | 0.01% | +30,803+113.6% | Added |
| Madden Securities Corp | 57,199 | $3.17M | 1.43% | +455+0.8% | Added |
| Russell Investments Group, Ltd. | 56,790 | $3.15M | 0.01% | +2,787+5.2% | Added |
| Donoghue Forlines LLC | 56,561 | $3.13M | 0.68% | −21,914−27.9% | Reduced |
| Bank of Nova Scotia | 55,181 | $3.06M | 0.01% | −20,900−27.5% | Reduced |
| Meiji Yasuda Asset Management Co Ltd. | 54,033 | $2.99M | 0.16% | +54,033 | New |
| DuPont Capital Management Corp | 52,987 | $2.94M | 0.12% | +13,762+35.1% | Added |
| Werlinich Asset Management, LLC | 52,840 | $2.93M | 2.23% | 00.0% | Unchanged |
| Vert Asset Management LLC | 52,412 | $2.90M | 2.34% | +4,146+8.6% | Added |
| Eaton Vance Management | 52,324 | $2.90M | 0.00% | +1,443+2.8% | Added |
| The PNC Financial Services Group, Inc. | 51,963 | $2.88M | 0.00% | −3,984−7.1% | Reduced |
| Horizon Investments, LLC | 51,953 | $2.88M | 0.08% | +14,076+37.2% | Added |
| Hourglass Capital, LLC | 51,800 | $2.87M | 0.90% | +51,800 | New |
| Utah Retirement Systems | 51,014 | $2.83M | 0.04% | −900−1.7% | Reduced |
| Cetera Investment Advisers | 50,834 | $2.82M | 0.04% | +4,046+8.6% | Added |
| ING Groep NV | 50,322 | $2.79M | 0.03% | +8,148+19.3% | Added |
| Sumitomo Mitsui DS Asset Management Company, Ltd | 50,252 | $2.78M | 0.06% | +4,245+9.2% | Added |
| Shell Asset Management Co | 48,979 | $2.71M | 0.06% | +1,998+4.3% | Added |
| Bridgewater Associates, LP | 48,824 | $2.71M | 0.01% | +21,853+81.0% | Added |
| Skandinaviska Enskilda Banken AB (publ) | 48,375 | $2.68M | 0.02% | −13,300−21.6% | Reduced |
| Thrivent Financial for Lutherans | 48,196 | $2.67M | 0.01% | +4,905+11.3% | Added |
| DnB Asset Management AS | 47,493 | $2.63M | 0.02% | +3,225+7.3% | Added |
| IFM Investors Pty Ltd | 47,108 | $2.61M | 0.04% | +6,918+17.2% | Added |
| Disciplined Equity Management, Inc. | 46,835 | $2.60M | 2.60% | −2,700−5.5% | Reduced |
| State of Tennessee, Treasury Department | 46,564 | $2.58M | 0.01% | −1,483−3.1% | Reduced |
| Pacitti Group Inc. | 46,041 | $2.55M | 1.69% | +2,723+6.3% | Added |
| Hussman Strategic Advisors, Inc. | 46,000 | $2.55M | 0.50% | 00.0% | Unchanged |
| Baird Financial Group, Inc. | 45,788 | $2.54M | 0.01% | +1,723+3.9% | Added |
| Bramshill Investments, LLC | 45,193 | $2.50M | 0.35% | +22,071+95.5% | Added |
| Gulf International Bank (UK) Ltd | 45,064 | $2.50M | 0.04% | 00.0% | Unchanged |
| Moody National Bank Trust Division | 44,701 | $2.48M | 0.08% | −6,379−12.5% | Reduced |
| British Columbia Investment Management Corp | 44,701 | $2.48M | 0.02% | −6,018−11.9% | Reduced |
| D.A. Davidson & Co. | 44,473 | $2.46M | 0.03% | −25−0.1% | Reduced |
| AE Wealth Management LLC | 44,265 | $2.45M | 0.02% | +5,391+13.9% | Added |
| Independent Advisor Alliance | 43,597 | $2.42M | 0.12% | +8,164+23.0% | Added |
| Mackay Shields LLC | 42,115 | $2.33M | 0.02% | −1,711−3.9% | Reduced |
| Mercer Global Advisors Inc | 42,046 | $2.33M | 0.01% | +4,862+13.1% | Added |
| Hartford Investment Management Co | 41,791 | $2.32M | 0.06% | −2,073−4.7% | Reduced |
| Public Sector Pension Investment Board | 40,500 | $2.24M | 0.01% | −7,810−16.2% | Reduced |
| U.S. Capital Wealth Advisors, LLC | 40,141 | $2.22M | 0.08% | 00.0% | Unchanged |
| Alps Advisors Inc | 39,961 | $2.21M | 0.02% | +9,137+29.6% | Added |
| Xponance, Inc. | 39,590 | $2.19M | 0.04% | +620+1.6% | Added |
| Globeflex Capital L P | 39,326 | $2.18M | 0.44% | 00.0% | Unchanged |
| RB Capital Management, LLC | 38,937 | $2.16M | 0.70% | +1,420+3.8% | Added |
| Northwestern Mutual Wealth Management Co | 38,846 | $2.15M | 0.00% | +9,011+30.2% | Added |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 38,743 | $2.15M | 0.02% | +2,399+6.6% | Added |
| SeaBridge Investment Advisors LLC | 38,688 | $2.14M | 0.64% | −4,336−10.1% | Reduced |
| Mutual of America Capital Management LLC | 38,644 | $2.14M | 0.02% | +412+1.1% | Added |
| Bessemer Group Inc | 38,216 | $2.12M | 0.00% | +1,272+3.4% | Added |
| Pensionfund Sabic | 38,000 | $2.11M | 0.52% | −6,000−13.6% | Reduced |
| Texas Permanent School Fund | 37,557 | $2.08M | 0.03% | −2,381−6.0% | Reduced |
| Public Employees Retirement Association of Colorado | 36,897 | $2.04M | 0.01% | −1,594−4.1% | Reduced |
| Sculati Wealth Management, LLC | 36,721 | $2.04M | 0.99% | −5,340−12.7% | Reduced |
| Madison Asset Management, LLC | 36,178 | $2.00M | 0.03% | +180.0% | Added |
| Ziegler Capital Management, LLC | 35,979 | $2.00M | 0.08% | −3,075−7.9% | Reduced |
| EAM Global Investors LLC | 35,910 | $1.99M | 0.37% | −14,301−28.5% | Reduced |
| Agf Investments Inc. | 35,332 | $1.96M | 0.01% | −7,480−17.5% | Reduced |
| Holderness Investments Co | 34,701 | $1.92M | 0.64% | +1,230+3.7% | Added |
| Metropolitan Life Insurance Co | 34,463 | $1.91M | 0.07% | −26,691−43.6% | Reduced |
| TKG Advisors, LLC | 34,264 | $1.90M | 1.52% | −13,266−27.9% | Reduced |
| Sippican Capital Advisors | 34,252 | $1.90M | 1.58% | −180−0.5% | Reduced |
| Norinchukin Bank, The | 34,055 | $1.89M | 0.03% | +2,772+8.9% | Added |
| CoreFirst Bank & Trust | 33,790 | $1.87M | 1.28% | −50−0.1% | Reduced |
| Childress Capital Advisors, LLC | 33,561 | $1.86M | 0.65% | +33,561 | New |
| Green Alpha Advisors, LLC | 33,469 | $1.85M | 1.25% | +8,625+34.7% | Added |
| Kavar Capital Partners Group, LLC | 31,948 | $1.77M | 0.38% | −1,675−5.0% | Reduced |
| Dumont & Blake Investment Advisors LLC | 31,934 | $1.77M | 0.48% | −376−1.2% | Reduced |
| Los Angeles Capital Management LLC | 31,410 | $1.74M | 0.01% | 00.0% | Unchanged |
| Ancora Advisors, LLC | 30,934 | $1.71M | 0.04% | −941−3.0% | Reduced |
| Eqis Capital Management, Inc. | 30,753 | $1.70M | 0.15% | −103−0.3% | Reduced |
| Lockheed Martin Investment Management Co | 30,628 | $1.70M | 0.09% | −2,800−8.4% | Reduced |
| American National Insurance Co | 30,525 | $1.69M | 0.46% | −6,135−16.7% | Reduced |
| McMillion Capital Management Inc | 30,427 | $1.69M | 1.04% | −3,710−10.9% | Reduced |
| Tectonic Advisors LLC | 29,237 | $1.62M | 0.28% | +4,872+20.0% | Added |
| Monument Capital Management | 29,080 | $1.61M | 0.52% | −16−0.1% | Reduced |
| Cubic Asset Management, LLC | 28,005 | $1.55M | 0.36% | 00.0% | Unchanged |
| TrimTabs Asset Management, LLC | 27,913 | $1.55M | 0.52% | +727+2.7% | Added |
| Moody Lynn & Lieberson, LLC | 27,883 | $1.54M | 0.11% | −26,193−48.4% | Reduced |
| Boston Private Wealth LLC | 27,882 | $1.54M | 0.02% | +11,155+66.7% | Added |
| Horizon Kinetics Asset Management LLC | 27,658 | $1.53M | 0.03% | +2,450+9.7% | Added |
| RFG Advisory, LLC | 27,115 | $1.50M | 0.10% | −756−2.7% | Reduced |
| US Bancorp | 26,681 | $1.48M | 0.00% | +3,904+17.1% | Added |
| Kinneret Advisory, LLC | 26,296 | $1.47M | 0.16% | +588+2.3% | Added |
| Cutler Group LP | 26,502 | $1.47M | 0.14% | −8,814−25.0% | Reduced |
| Richard P Slaughter Associates Inc | 26,405 | $1.46M | 0.55% | −408−1.5% | Reduced |
| AQR Capital Management LLC | 26,265 | $1.46M | 0.00% | −5,900−18.3% | Reduced |
| Capital Investment Advisory Services, LLC | 26,013 | $1.44M | 0.16% | −965−3.6% | Reduced |
| Advisory Services Network, LLC | 25,648 | $1.42M | 0.04% | −9,416−26.9% | Reduced |
| JustInvest LLC | 25,521 | $1.41M | 0.07% | +8,180+47.2% | Added |
| Ingalls & Snyder LLC | 25,363 | $1.41M | 0.06% | −900−3.4% | Reduced |
| Gables Capital Management Inc. | 25,260 | $1.40M | 0.88% | 00.0% | Unchanged |