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, Q2 2023
Institutional positions in Iron Mountain Inc as of Jun 30, 2023. 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
- 817
- +35 vs. Q1 2023
- Shares held
- 227.1M
- +1.66M (+0.7%) vs. Q1 2023
- Total value
- $12.9B
- +$954.9M (+8.0%) vs. Q1 2023
- New holders
- 86
- 284 more added
- Sold out
- 51
- 292 more reduced
8 institutions that held it in Q1 2023 haven't filed for Q2 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2023: 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, Q2 2023
Shares, value and share of portfolio for each institution holding Iron Mountain Inc; share changes are against Q1 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Churchill Management Corp | 201,000 | $11.4M | 0.19% | +201,000 | New |
| Qube Research & Technologies Ltd | 200,512 | $11.4M | 0.04% | +183,788+1,098.9% | Added |
| ExodusPoint Capital Management, LP | 198,407 | $11.3M | 0.13% | +186,382+1,550.0% | Added |
| Voya Investment Management LLC | 191,427 | $10.9M | 0.01% | −150,321−44.0% | Reduced |
| STRS Ohio | 189,889 | $10.8M | 0.05% | −139,207−42.3% | Reduced |
| Commonwealth Equity Services, LLC | 188,239 | $10.7M | 0.02% | −3,474−1.8% | Reduced |
| Mitsubishi UFJ Trust & Banking Corp | 187,382 | $10.6M | 0.02% | −24,288−11.5% | Reduced |
| Hall Private Wealth Advisors | 186,353 | $10.6M | 5.72% | −13,089−6.6% | Reduced |
| Storebrand Asset Management AS | 183,575 | $10.4M | 0.05% | −1,781−1.0% | Reduced |
| Sheaff Brock Investment Advisors, LLC | 173,552 | $9.86M | 0.95% | −2,169−1.2% | Reduced |
| State of Alaska, Department of Revenue | 172,928 | $9.82M | 0.12% | −17,478−9.2% | Reduced |
| Trust Co of Virginia | 172,700 | $9.81M | 1.04% | −4,749−2.7% | Reduced |
| State of Wisconsin Investment Board | 169,438 | $9.63M | 0.03% | +9,631+6.0% | Added |
| Janney Montgomery Scott LLC | 168,127 | $9.55M | 0.03% | −2,500−1.5% | Reduced |
| Chevy Chase Trust Holdings, Inc. | 167,765 | $9.53M | 0.04% | −1,175−0.7% | Reduced |
| Standard Life Aberdeen plc | 165,346 | $9.39M | 0.02% | +8,885+5.7% | Added |
| Sargent Investment Group, LLC | 164,090 | $9.32M | 2.27% | −20,560−11.1% | Reduced |
| State of New Jersey Common Pension Fund D | 163,879 | $9.31M | 0.03% | 00.0% | Unchanged |
| Ensign Peak Advisors, Inc | 162,691 | $9.24M | 0.02% | +66,790+69.6% | Added |
| Susquehanna International Group, LLP | 162,638 | $9.24M | 0.01% | −14,664−8.3% | Reduced |
| UniSuper Management Pty Ltd | 155,970 | $8.86M | 0.10% | +155,970 | New |
| Toronto Dominion Bank | 155,700 | $8.84M | 0.01% | −13,236−7.8% | Reduced |
| Nisa Investment Advisors, LLC | 147,234 | $8.37M | 0.06% | −18,426−11.1% | Reduced |
| D. E. Shaw & Co., Inc. | 146,064 | $8.30M | 0.01% | +66,484+83.5% | Added |
| Mutual Advisors, LLC | 145,363 | $8.26M | 0.31% | −20,110−12.2% | Reduced |
| Ardsley Advisory Partners LP | 145,000 | $8.24M | 1.86% | 00.0% | Unchanged |
| Advisor Group Holdings, Inc. | 141,890 | $8.07M | 0.01% | −6,986−4.7% | Reduced |
| Susquehanna Fundamental Investments, LLC | 138,609 | $7.88M | 0.29% | 00.0% | Unchanged |
| Korea Investment CORP | 137,057 | $7.79M | 0.02% | −128,450−48.4% | Reduced |
| Public Employees Retirement System of Ohio | 135,891 | $7.72M | 0.03% | −12,785−8.6% | Reduced |
| Natixis Advisors, L.P. | 135,260 | $7.68M | 0.02% | −124−0.1% | Reduced |
| Treasurer of the State of North Carolina | 134,447 | $7.64M | 0.04% | +4,180+3.2% | Added |
| Snowden Capital Advisors LLC | 133,564 | $7.59M | 0.27% | −3,628−2.6% | Reduced |
| Ar Asset Management Inc | 131,600 | $7.48M | 2.01% | 00.0% | Unchanged |
| James Hambro & Partners | 131,252 | $7.45M | 0.49% | +10,618+8.8% | Added |
| Cetera Advisor Networks LLC | 128,434 | $7.30M | 0.05% | +4,843+3.9% | Added |
| EWG Elevate Inc. | 128,145 | $7.28M | 3.01% | −2,210−1.7% | Reduced |
| Royal London Asset Management Ltd | 126,067 | $7.16M | 0.02% | +17,924+16.6% | Added |
| Erste Asset Management GmbH | 121,900 | $6.83M | 0.12% | −8,900−6.8% | Reduced |
| Cambridge Investment Research Advisors, Inc. | 116,794 | $6.64M | 0.03% | +4,741+4.2% | Added |
| Vert Asset Management LLC | 112,497 | $6.39M | 3.27% | +4,490+4.2% | Added |
| Teacher Retirement System of Texas | 112,487 | $6.39M | 0.04% | −49,548−30.6% | Reduced |
| Handelsbanken Fonder AB | 110,693 | $6.29M | 0.03% | +17,446+18.7% | Added |
| Andra AP-fonden | 110,700 | $6.29M | 0.16% | −55,500−33.4% | Reduced |
| WealthTrust Axiom LLC | 108,983 | $6.19M | 2.05% | −26,759−19.7% | Reduced |
| Knights of Columbus Asset Advisors LLC | 107,558 | $6.11M | 0.55% | +1,443+1.4% | Added |
| Aew Capital Management L P | 107,030 | $6.08M | 0.23% | −35,880−25.1% | Reduced |
| HRT Financial LP | 105,141 | $5.97M | 0.06% | +105,141 | New |
| First National Trust Co | 105,021 | $5.97M | 0.28% | +88,870+550.2% | Added |
| Point72 Asset Management, L.P. | 104,600 | $5.94M | 0.02% | +2,900+2.9% | Added |
| Azimuth Capital Investment Management LLC | 104,490 | $5.94M | 0.28% | −750−0.7% | Reduced |
| State of Tennessee, Treasury Department | 102,495 | $5.82M | 0.02% | +57,900+129.8% | Added |
| M&T Bank Corp | 101,876 | $5.79M | 0.02% | +1,526+1.5% | Added |
| Victory Capital Management Inc | 101,283 | $5.75M | 0.01% | −514−0.5% | Reduced |
| PFS Investments Inc. | 97,768 | $5.55M | 0.09% | +3,016+3.2% | Added |
| Thrivent Financial for Lutherans | 94,043 | $5.34M | 0.01% | −29,092−23.6% | Reduced |
| Chicago Capital, LLC | 92,156 | $5.24M | 0.24% | 00.0% | Unchanged |
| Sonora Investment Management Group, LLC | 88,060 | $5.00M | 0.42% | −3,303−3.6% | Reduced |
| USS Investment Management Ltd | 87,977 | $5.00M | 0.06% | 00.0% | Unchanged |
| Janus Henderson Group PLC | 85,388 | $4.85M | 0.00% | +14,555+20.5% | Added |
| Meiji Yasuda Asset Management Co Ltd. | 84,846 | $4.82M | 0.24% | +250+0.3% | Added |
| Nia Impact Advisors, LLC | 78,427 | $4.78M | 2.72% | +1,165+1.5% | Added |
| Private Advisor Group, LLC | 83,178 | $4.77M | 0.04% | −1,690−2.0% | Reduced |
| Siemens Fonds Invest GmbH | 83,362 | $4.71M | 0.46% | −2,087−2.4% | Reduced |
| MML Investors Services, LLC | 82,115 | $4.67M | 0.03% | +4,739+6.1% | Added |
| American International Group, Inc. | 81,416 | $4.63M | 0.03% | +1,088+1.4% | Added |
| Fifth Third Bancorp | 80,597 | $4.58M | 0.02% | −1,636−2.0% | Reduced |
| Baird Financial Group, Inc. | 80,444 | $4.57M | 0.01% | +22,388+38.6% | Added |
| La Financiere de L'Echiquier | 80,266 | $4.56M | 0.23% | −55,265−40.8% | Reduced |
| State of Michigan Retirement System | 80,146 | $4.55M | 0.03% | +300+0.4% | Added |
| MetLife Investment Management | 79,943 | $4.54M | 0.03% | −3,656−4.4% | Reduced |
| La Banque Postale Asset Management SA | 79,835 | $4.54M | 0.11% | −3,659−4.4% | Reduced |
| Arizona State Retirement System | 79,573 | $4.52M | 0.04% | −4,946−5.9% | Reduced |
| TD Private Client Wealth LLC | 79,342 | $4.51M | 0.19% | −3,691−4.4% | Reduced |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 79,218 | $4.50M | 0.02% | −19,895−20.1% | Reduced |
| Avantax Advisory Services, Inc. | 78,055 | $4.44M | 0.05% | −2,257−2.8% | Reduced |
| Tectonic Advisors LLC | 77,883 | $4.43M | 0.54% | +6,677+9.4% | Added |
| Woodstock Corp | 76,789 | $4.36M | 0.51% | −370−0.5% | Reduced |
| Hourglass Capital, LLC | 75,750 | $4.30M | 1.50% | +300+0.4% | Added |
| Fjarde Ap-Fonden /Fourth Swedish National Pension Fund | 74,484 | $4.23M | 0.05% | +9,800+15.2% | Added |
| Amalgamated Bank | 74,434 | $4.23M | 0.03% | −27,391−26.9% | Reduced |
| Salem Investment Counselors Inc | 72,339 | $4.15M | 0.15% | +535+0.7% | Added |
| Moors & Cabot, Inc. | 71,908 | $4.09M | 0.27% | −211−0.3% | Reduced |
| Advisors Asset Management, Inc. | 71,836 | $4.08M | 0.08% | −10,533−12.8% | Reduced |
| Voloridge Investment Management, LLC | 71,615 | $4.07M | 0.02% | +71,615 | New |
| Twinbeech Capital LP | 69,610 | $3.96M | 0.08% | +69,610 | New |
| Sumitomo Mitsui DS Asset Management Company, Ltd | 69,417 | $3.94M | 0.06% | +2,085+3.1% | Added |
| Wealthfront Advisers LLC | 69,288 | $3.94M | 0.02% | −476−0.7% | Reduced |
| Truist Financial Corp | 68,975 | $3.92M | 0.01% | −577−0.8% | Reduced |
| Cetera Investment Advisers | 67,730 | $3.85M | 0.03% | +5,960+9.6% | Added |
| Oliver Luxxe Assets LLC | 67,233 | $3.82M | 0.95% | 00.0% | Unchanged |
| American Trust Investment Advisors, LLC | 66,869 | $3.80M | 2.13% | +1,223+1.9% | Added |
| Nepsis, Inc. | 66,485 | $3.78M | 1.16% | +804+1.2% | Added |
| HighTower Advisors, LLC | 66,106 | $3.76M | 0.01% | −330−0.5% | Reduced |
| Edgestream Partners, L.P. | 65,916 | $3.75M | 0.34% | +24,153+57.8% | Added |
| Peapack Gladstone Financial Corp | 65,309 | $3.71M | 0.07% | +164+0.3% | Added |
| National Bank of Canada | 64,659 | $3.69M | 0.01% | +9,362+16.9% | Added |
| Jane Street Group, LLC | 64,883 | $3.69M | 0.01% | +59,600+1,128.1% | Added |
| Mercer Global Advisors Inc | 64,498 | $3.67M | 0.01% | +1,916+3.1% | Added |
| Truvestments Capital LLC | 64,072 | $3.64M | 1.81% | +1,559+2.5% | Added |