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 |
|---|---|---|---|---|---|
| Sumitomo Mitsui DS Asset Management Company, Ltd | 61,523 | $2.71M | 0.06% | +7,276+13.4% | Added |
| Bridgewater Associates, LP | 61,460 | $2.70M | 0.01% | +4,276+7.5% | Added |
| NEIRG Wealth Management, LLC | 60,422 | $2.66M | 0.53% | +9,596+18.9% | Added |
| Vectors Research Management, LLC | 60,038 | $2.64M | 0.75% | −2,306−3.7% | Reduced |
| Thrivent Financial for Lutherans | 58,704 | $2.58M | 0.01% | +2,654+4.7% | Added |
| Tredje AP-fonden | 57,225 | $2.52M | 0.05% | +57,225 | New |
| HNP Capital LLC | 57,050 | $2.51M | 0.72% | −3,354−5.6% | Reduced |
| Franklin Resources Inc | 56,675 | $2.49M | 0.00% | −4,748−7.7% | Reduced |
| Advisors Asset Management, Inc. | 55,828 | $2.46M | 0.05% | −37,621−40.3% | Reduced |
| Pensionfund DSM Netherlands | 55,000 | $2.42M | 1.74% | 00.0% | Unchanged |
| Oregon Public Employees Retirement Fund | 53,530 | $2.35M | 0.03% | −1,867−3.4% | Reduced |
| Yousif Capital Management, LLC | 53,535 | $2.35M | 0.03% | −1,737−3.1% | Reduced |
| Public Sector Pension Investment Board | 53,349 | $2.35M | 0.02% | +25,400+90.9% | Added |
| CIBC World Markets Inc. | 52,998 | $2.33M | 0.01% | +3,300+6.6% | Added |
| Werlinich Asset Management, LLC | 52,390 | $2.30M | 2.35% | −450−0.9% | Reduced |
| Xponance, Inc. | 51,733 | $2.27M | 0.04% | +4,357+9.2% | Added |
| Utah Retirement Systems | 51,614 | $2.27M | 0.04% | +600+1.2% | Added |
| Railway Pension Investments Ltd | 51,300 | $2.26M | 0.02% | +51,300 | New |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 50,898 | $2.24M | 0.01% | +18,248+55.9% | Added |
| Bramshill Investments, LLC | 50,571 | $2.22M | 0.32% | +1,238+2.5% | Added |
| Mercer Global Advisors Inc | 50,307 | $2.21M | 0.01% | +217+0.4% | Added |
| AE Wealth Management LLC | 50,271 | $2.21M | 0.02% | +3,045+6.4% | Added |
| Wolverine Asset Management LLC | 50,161 | $2.21M | 0.03% | +10,968+28.0% | Added |
| AlphaCrest Capital Management LLC | 49,741 | $2.19M | 0.13% | +28,488+134.0% | Added |
| James Hambro & Partners | 49,337 | $2.17M | 0.19% | +18,338+59.2% | Added |
| Atria Wealth Solutions, Inc. | 48,393 | $2.15M | 0.04% | −5,642−10.4% | Reduced |
| Cetera Advisors LLC | 48,921 | $2.15M | 0.06% | −19,588−28.6% | Reduced |
| Independent Advisor Alliance | 47,809 | $2.10M | 0.12% | +3,822+8.7% | Added |
| Madden Securities Corp | 47,755 | $2.10M | 1.27% | −1,072−2.2% | Reduced |
| Baird Financial Group, Inc. | 47,340 | $2.08M | 0.01% | +1,368+3.0% | Added |
| Skandinaviska Enskilda Banken AB (publ) | 47,211 | $2.08M | 0.02% | −2,071−4.2% | Reduced |
| DnB Asset Management AS | 47,132 | $2.07M | 0.02% | −1,300−2.7% | Reduced |
| IFM Investors Pty Ltd | 47,108 | $2.07M | 0.04% | 00.0% | Unchanged |
| D.A. Davidson & Co. | 47,067 | $2.07M | 0.03% | +128+0.3% | Added |
| Hartford Investment Management Co | 45,830 | $2.02M | 0.07% | +3,596+8.5% | Added |
| The PNC Financial Services Group, Inc. | 45,763 | $2.01M | 0.00% | −8,124−15.1% | Reduced |
| Tectonic Advisors LLC | 45,623 | $2.01M | 0.37% | +9,263+25.5% | Added |
| Gulf International Bank (UK) Ltd | 45,064 | $1.98M | 0.04% | 00.0% | Unchanged |
| Globeflex Capital L P | 44,720 | $1.97M | 0.34% | +12,702+39.7% | Added |
| RB Capital Management, LLC | 43,213 | $1.90M | 0.73% | +2,702+6.7% | Added |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 42,518 | $1.87M | 0.02% | +212+0.5% | Added |
| Candriam Luxembourg S.C.A. | 41,720 | $1.83M | 0.01% | +21,581+107.2% | Added |
| DuPont Capital Management Corp | 41,585 | $1.83M | 0.11% | −3,525−7.8% | Reduced |
| Texas Permanent School Fund | 41,130 | $1.81M | 0.03% | +2,751+7.2% | Added |
| Acadian Asset Management LLC | 40,828 | $1.79M | 0.01% | +36,514+846.4% | Added |
| Disciplined Equity Management, Inc. | 40,715 | $1.79M | 1.77% | −6,450−13.7% | Reduced |
| Shell Asset Management Co | 40,682 | $1.79M | 0.07% | −9,842−19.5% | Reduced |
| Mutual of America Capital Management LLC | 40,248 | $1.77M | 0.02% | +631+1.6% | Added |
| SeaBridge Investment Advisors LLC | 40,194 | $1.77M | 0.62% | +2,153+5.7% | Added |
| U.S. Capital Wealth Advisors, LLC | 40,141 | $1.76M | 0.09% | 00.0% | Unchanged |
| Northwestern Mutual Wealth Management Co | 39,790 | $1.75M | 0.00% | −274−0.7% | Reduced |
| Gotham Asset Management, LLC | 39,773 | $1.75M | 0.05% | +17,450+78.2% | Added |
| CIBC Asset Management Inc | 38,448 | $1.69M | 0.01% | +3,415+9.7% | Added |
| Janus Henderson Group PLC | 38,182 | $1.68M | 0.00% | +122+0.3% | Added |
| Eaton Vance Management | 37,652 | $1.66M | 0.00% | −7,093−15.9% | Reduced |
| Alps Advisors Inc | 37,183 | $1.64M | 0.02% | −37−0.1% | Reduced |
| Public Employees Retirement Association of Colorado | 36,897 | $1.62M | 0.01% | 00.0% | Unchanged |
| NorthCrest Asset Manangement, LLC | 35,733 | $1.57M | 0.09% | +35,733 | New |
| Ziegler Capital Management, LLC | 35,354 | $1.57M | 0.07% | −2,061−5.5% | Reduced |
| Madison Asset Management, LLC | 35,599 | $1.56M | 0.03% | −139−0.4% | Reduced |
| Cetera Investment Advisers | 35,504 | $1.56M | 0.03% | −10,347−22.6% | Reduced |
| Czech National Bank | 33,775 | $1.49M | 0.04% | +33,775 | New |
| De Burlo Group Inc | 33,600 | $1.48M | 0.35% | +33,600 | New |
| Pacitti Group Inc. | 33,158 | $1.46M | 1.19% | −14,659−30.7% | Reduced |
| Holderness Investments Co | 33,120 | $1.46M | 0.66% | −76−0.2% | Reduced |
| Boston Private Wealth LLC | 32,101 | $1.41M | 0.02% | +3,950+14.0% | Added |
| CoreFirst Bank & Trust | 32,000 | $1.41M | 1.21% | 00.0% | Unchanged |
| Childress Capital Advisors, LLC | 31,744 | $1.40M | 0.54% | −2,000−5.9% | Reduced |
| Dumont & Blake Investment Advisors LLC | 31,756 | $1.40M | 0.52% | −122−0.4% | Reduced |
| Norinchukin Bank, The | 31,605 | $1.39M | 0.03% | +4,100+14.9% | Added |
| Stock Yards Bank & Trust Co | 31,490 | $1.38M | 0.06% | −620−1.9% | Reduced |
| RFG Advisory, LLC | 27,283 | $1.38M | 0.08% | −585−2.1% | Reduced |
| AQR Capital Management LLC | 30,347 | $1.33M | 0.00% | +5,758+23.4% | Added |
| Ossiam | 30,326 | $1.33M | 0.04% | +30,326 | New |
| Horizon Investments, LLC | 29,991 | $1.32M | 0.04% | +29,991 | New |
| Kavar Capital Partners Group, LLC | 29,473 | $1.30M | 0.33% | −1,275−4.1% | Reduced |
| Venture Visionary Partners LLC | 29,265 | $1.29M | 0.10% | +7,347+33.5% | Added |
| British Columbia Investment Management Corp | 28,737 | $1.26M | 0.01% | −4,742−14.2% | Reduced |
| Caption Management, LLC | 28,680 | $1.26M | 0.22% | +15,680+120.6% | Added |
| Vident Investment Advisory, LLC | 29,502 | $1.26M | 0.04% | +6,226+26.7% | Added |
| Triasima Portfolio Management inc. | 28,470 | $1.25M | 0.10% | −75−0.3% | Reduced |
| Foresight Wealth Management, LLC | 28,429 | $1.25M | 0.53% | +1,555+5.8% | Added |
| Donoghue Forlines LLC | 28,376 | $1.25M | 0.45% | −10,978−27.9% | Reduced |
| US Bancorp | 28,148 | $1.24M | 0.00% | +1,875+7.1% | Added |
| Eqis Capital Management, Inc. | 28,085 | $1.23M | 0.14% | −8,581−23.4% | Reduced |
| Green Alpha Advisors, LLC | 28,000 | $1.23M | 1.04% | +736+2.7% | Added |
| Capital Investment Advisors, LLC | 27,768 | $1.22M | 0.04% | +4,332+18.5% | Added |
| Cubic Asset Management, LLC | 27,705 | $1.22M | 0.36% | −300−1.1% | Reduced |
| Wolverine Trading, LLC | 27,805 | $1.22M | 0.05% | +14,680+111.8% | Added |
| Horizon Kinetics Asset Management LLC | 27,508 | $1.21M | 0.02% | −50−0.2% | Reduced |
| Kinneret Advisory, LLC | 26,865 | $1.20M | 0.17% | 00.0% | Unchanged |
| Sippican Capital Advisors | 27,097 | $1.19M | 1.24% | −345−1.3% | Reduced |
| Bank of Nova Scotia | 26,890 | $1.18M | 0.00% | −30−0.1% | Reduced |
| Empirical Financial Services, LLC d.b.a. Empirical Wealth Management | 26,890 | $1.18M | 0.06% | +6,066+29.1% | Added |
| Y-Intercept (Hong Kong) Ltd | 26,748 | $1.18M | 0.12% | +13,237+98.0% | Added |
| Teachers Retirement System of the State of Kentucky | 26,637 | $1.17M | 0.01% | +26,637 | New |
| Ethic Inc. | 26,580 | $1.17M | 0.08% | +3,804+16.7% | Added |
| Susquehanna International Group, LLP | 26,223 | $1.15M | 0.00% | −18,614−41.5% | Reduced |
| KCM Investment Advisors LLC | 26,216 | $1.15M | 0.05% | −703−2.6% | Reduced |
| Richard P Slaughter Associates Inc | 26,083 | $1.15M | 0.49% | −678−2.5% | Reduced |