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 |
|---|---|---|---|---|---|
| Dumont & Blake Investment Advisors LLC | 31,934 | $1.77M | 0.48% | −376−1.2% | Reduced |
| Kavar Capital Partners Group, LLC | 31,948 | $1.77M | 0.38% | −1,675−5.0% | Reduced |
| Green Alpha Advisors, LLC | 33,469 | $1.85M | 1.25% | +8,625+34.7% | Added |
| Childress Capital Advisors, LLC | 33,561 | $1.86M | 0.65% | +33,561 | New |
| CoreFirst Bank & Trust | 33,790 | $1.87M | 1.28% | −50−0.1% | Reduced |
| Norinchukin Bank, The | 34,055 | $1.89M | 0.03% | +2,772+8.9% | Added |
| Sippican Capital Advisors | 34,252 | $1.90M | 1.58% | −180−0.5% | Reduced |
| TKG Advisors, LLC | 34,264 | $1.90M | 1.52% | −13,266−27.9% | Reduced |
| Metropolitan Life Insurance Co | 34,463 | $1.91M | 0.07% | −26,691−43.6% | Reduced |
| Holderness Investments Co | 34,701 | $1.92M | 0.64% | +1,230+3.7% | Added |
| Agf Investments Inc. | 35,332 | $1.96M | 0.01% | −7,480−17.5% | Reduced |
| EAM Global Investors LLC | 35,910 | $1.99M | 0.37% | −14,301−28.5% | Reduced |
| Ziegler Capital Management, LLC | 35,979 | $2.00M | 0.08% | −3,075−7.9% | Reduced |
| Madison Asset Management, LLC | 36,178 | $2.00M | 0.03% | +180.0% | Added |
| Sculati Wealth Management, LLC | 36,721 | $2.04M | 0.99% | −5,340−12.7% | Reduced |
| Public Employees Retirement Association of Colorado | 36,897 | $2.04M | 0.01% | −1,594−4.1% | Reduced |
| Texas Permanent School Fund | 37,557 | $2.08M | 0.03% | −2,381−6.0% | Reduced |
| Pensionfund Sabic | 38,000 | $2.11M | 0.52% | −6,000−13.6% | Reduced |
| Bessemer Group Inc | 38,216 | $2.12M | 0.00% | +1,272+3.4% | Added |
| Mutual of America Capital Management LLC | 38,644 | $2.14M | 0.02% | +412+1.1% | Added |
| SeaBridge Investment Advisors LLC | 38,688 | $2.14M | 0.64% | −4,336−10.1% | Reduced |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 38,743 | $2.15M | 0.02% | +2,399+6.6% | Added |
| Northwestern Mutual Wealth Management Co | 38,846 | $2.15M | 0.00% | +9,011+30.2% | Added |
| RB Capital Management, LLC | 38,937 | $2.16M | 0.70% | +1,420+3.8% | Added |
| Globeflex Capital L P | 39,326 | $2.18M | 0.44% | 00.0% | Unchanged |
| Xponance, Inc. | 39,590 | $2.19M | 0.04% | +620+1.6% | Added |
| Alps Advisors Inc | 39,961 | $2.21M | 0.02% | +9,137+29.6% | Added |
| U.S. Capital Wealth Advisors, LLC | 40,141 | $2.22M | 0.08% | 00.0% | Unchanged |
| Public Sector Pension Investment Board | 40,500 | $2.24M | 0.01% | −7,810−16.2% | Reduced |
| Hartford Investment Management Co | 41,791 | $2.32M | 0.06% | −2,073−4.7% | Reduced |
| Mercer Global Advisors Inc | 42,046 | $2.33M | 0.01% | +4,862+13.1% | Added |
| Mackay Shields LLC | 42,115 | $2.33M | 0.02% | −1,711−3.9% | Reduced |
| Independent Advisor Alliance | 43,597 | $2.42M | 0.12% | +8,164+23.0% | Added |
| AE Wealth Management LLC | 44,265 | $2.45M | 0.02% | +5,391+13.9% | Added |
| D.A. Davidson & Co. | 44,473 | $2.46M | 0.03% | −25−0.1% | Reduced |
| 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 |
| Gulf International Bank (UK) Ltd | 45,064 | $2.50M | 0.04% | 00.0% | Unchanged |
| Bramshill Investments, LLC | 45,193 | $2.50M | 0.35% | +22,071+95.5% | Added |
| Baird Financial Group, Inc. | 45,788 | $2.54M | 0.01% | +1,723+3.9% | Added |
| Hussman Strategic Advisors, Inc. | 46,000 | $2.55M | 0.50% | 00.0% | Unchanged |
| Pacitti Group Inc. | 46,041 | $2.55M | 1.69% | +2,723+6.3% | Added |
| State of Tennessee, Treasury Department | 46,564 | $2.58M | 0.01% | −1,483−3.1% | Reduced |
| Disciplined Equity Management, Inc. | 46,835 | $2.60M | 2.60% | −2,700−5.5% | Reduced |
| IFM Investors Pty Ltd | 47,108 | $2.61M | 0.04% | +6,918+17.2% | Added |
| DnB Asset Management AS | 47,493 | $2.63M | 0.02% | +3,225+7.3% | Added |
| Thrivent Financial for Lutherans | 48,196 | $2.67M | 0.01% | +4,905+11.3% | Added |
| Skandinaviska Enskilda Banken AB (publ) | 48,375 | $2.68M | 0.02% | −13,300−21.6% | Reduced |
| Bridgewater Associates, LP | 48,824 | $2.71M | 0.01% | +21,853+81.0% | Added |
| Shell Asset Management Co | 48,979 | $2.71M | 0.06% | +1,998+4.3% | Added |
| Sumitomo Mitsui DS Asset Management Company, Ltd | 50,252 | $2.78M | 0.06% | +4,245+9.2% | Added |
| ING Groep NV | 50,322 | $2.79M | 0.03% | +8,148+19.3% | Added |
| Cetera Investment Advisers | 50,834 | $2.82M | 0.04% | +4,046+8.6% | Added |
| Utah Retirement Systems | 51,014 | $2.83M | 0.04% | −900−1.7% | Reduced |
| Hourglass Capital, LLC | 51,800 | $2.87M | 0.90% | +51,800 | New |
| 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 |
| Eaton Vance Management | 52,324 | $2.90M | 0.00% | +1,443+2.8% | Added |
| Vert Asset Management LLC | 52,412 | $2.90M | 2.34% | +4,146+8.6% | Added |
| Werlinich Asset Management, LLC | 52,840 | $2.93M | 2.23% | 00.0% | Unchanged |
| DuPont Capital Management Corp | 52,987 | $2.94M | 0.12% | +13,762+35.1% | Added |
| Meiji Yasuda Asset Management Co Ltd. | 54,033 | $2.99M | 0.16% | +54,033 | New |
| Bank of Nova Scotia | 55,181 | $3.06M | 0.01% | −20,900−27.5% | Reduced |
| Donoghue Forlines LLC | 56,561 | $3.13M | 0.68% | −21,914−27.9% | Reduced |
| Russell Investments Group, Ltd. | 56,790 | $3.15M | 0.01% | +2,787+5.2% | Added |
| Madden Securities Corp | 57,199 | $3.17M | 1.43% | +455+0.8% | Added |
| 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 |
| G&S Capital LLC | 58,139 | $3.22M | 1.72% | −25,485−30.5% | Reduced |
| Banco Bilbao Vizcaya Argentaria, S.A. | 57,230 | $3.22M | 0.04% | −23,376−29.0% | Reduced |
| Yousif Capital Management, LLC | 58,197 | $3.23M | 0.04% | +192+0.3% | Added |
| MML Investors Services, LLC | 58,629 | $3.25M | 0.02% | +5,312+10.0% | Added |
| Teacher Retirement System of Texas | 59,649 | $3.31M | 0.02% | +3,800+6.8% | Added |
| Swarthmore Group Inc | 59,661 | $3.31M | 0.84% | +59,661 | New |
| DekaBank Deutsche Girozentrale | 59,315 | $3.33M | 0.01% | +6,933+13.2% | Added |
| Peapack Gladstone Financial Corp | 60,385 | $3.35M | 0.07% | −126−0.2% | Reduced |
| Nissay Asset Management Corp | 60,412 | $3.35M | 0.03% | +983+1.7% | Added |
| HNP Capital LLC | 61,464 | $3.41M | 0.81% | +7,498+13.9% | Added |
| Atria Wealth Solutions, Inc. | 61,016 | $3.41M | 0.06% | +61,016 | New |
| Beck Capital Management, LLC | 62,358 | $3.46M | 1.05% | −162−0.3% | Reduced |
| Vectors Research Management, LLC | 63,733 | $3.53M | 0.77% | +8,910+16.3% | Added |
| Salem Investment Counselors Inc | 65,018 | $3.60M | 0.14% | −1,948−2.9% | Reduced |
| Cetera Advisors LLC | 66,534 | $3.69M | 0.07% | −2,081−3.0% | Reduced |
| Avantax Advisory Services, Inc. | 66,875 | $3.71M | 0.05% | −45,885−40.7% | Reduced |
| HighTower Advisors, LLC | 67,029 | $3.71M | 0.01% | +2,017+3.1% | Added |
| Oliver Luxxe Assets LLC | 67,233 | $3.73M | 0.94% | −1,090−1.6% | Reduced |
| Catalyst Capital Advisors LLC | 67,500 | $3.74M | 0.16% | −14,570−17.8% | Reduced |
| Franklin Resources Inc | 67,539 | $3.74M | 0.00% | −8,347−11.0% | Reduced |
| Truvestments Capital LLC | 71,887 | $3.98M | 2.18% | +950+1.3% | Added |
| Comerica Bank | 70,943 | $4.09M | 0.03% | +1,967+2.9% | Added |
| American Trust Investment Advisors, LLC | 73,947 | $4.10M | 2.10% | −39,624−34.9% | Reduced |
| Ensign Peak Advisors, Inc | 74,758 | $4.14M | 0.01% | −45,120−37.6% | Reduced |
| PFS Investments Inc. | 76,303 | $4.23M | 0.08% | +76,303 | New |
| Tower Research Capital LLC (TRC) | 76,775 | $4.25M | 0.04% | +21,473+38.8% | Added |
| National Asset Management, Inc. | 77,158 | $4.28M | 0.14% | +30,692+66.1% | Added |
| Breiter Capital Management Inc | 78,349 | $4.34M | 2.15% | +2,746+3.6% | Added |
| Pensionfund DSM Netherlands | 79,500 | $4.41M | 2.10% | −20,000−20.1% | Reduced |
| Cetera Advisor Networks LLC | 80,189 | $4.44M | 0.05% | +5,334+7.1% | Added |
| Arizona State Retirement System | 80,598 | $4.47M | 0.04% | +1,788+2.3% | Added |
| Macquarie Group Ltd | 82,867 | $4.59M | 0.00% | −9,886−10.7% | Reduced |