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 8 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 2021
Institutional positions in Iron Mountain Inc as of Jun 30, 2021. 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
- 687
- +60 vs. Q1 2021
- Shares held
- 229.0M
- +3.86M (+1.7%) vs. Q1 2021
- Total value
- $9.70B
- +$1.37B (+16.4%) vs. Q1 2021
- New holders
- 112
- 253 more added
- Sold out
- 52
- 218 more reduced
3 institutions that held it in Q1 2021 haven't filed for Q2 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 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, Q2 2021
Shares, value and share of portfolio for each institution holding Iron Mountain Inc; share changes are against Q1 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 211,716 | $8.96M | 0.05% | +14,526+7.4% | Added |
| Guggenheim Capital LLC | 210,260 | $8.90M | 0.05% | −33,715−13.8% | Reduced |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 203,157 | $8.60M | 0.05% | −138,481−40.5% | Reduced |
| Moody National Bank Trust Division | 201,753 | $8.54M | 0.17% | −825−0.4% | Reduced |
| American National Insurance Co | 201,540 | $8.53M | 0.32% | −335−0.2% | Reduced |
| Nisa Investment Advisors, LLC | 197,900 | $8.38M | 0.05% | −13,284−6.3% | Reduced |
| Vancity Investment Management Ltd | 197,115 | $8.34M | 1.17% | +197,115 | New |
| Andra AP-fonden | 193,900 | $8.21M | 0.17% | +19,700+11.3% | Added |
| Commonwealth Equity Services, LLC | 193,220 | $8.18M | 0.02% | +29,048+17.7% | Added |
| Gilman Hill Asset Management, LLC | 191,583 | $8.11M | 2.08% | +3,740+2.0% | Added |
| Sheaff Brock Investment Advisors, LLC | 187,212 | $7.92M | 0.76% | −11,240−5.7% | Reduced |
| Mitsubishi UFJ Trust & Banking Corp | 183,649 | $7.79M | 0.02% | −19,639−9.7% | Reduced |
| Chevy Chase Trust Holdings, Inc. | 183,983 | $7.79M | 0.03% | −9,589−5.0% | Reduced |
| Public Employees Retirement System of Ohio | 177,141 | $7.50M | 0.03% | +17,540+11.0% | Added |
| Advisor Group Holdings, Inc. | 176,263 | $7.46M | 0.02% | −21,771−11.0% | Reduced |
| Citadel Advisors LLC | 174,575 | $7.39M | 0.01% | +146,017+511.3% | Added |
| Standard Life Aberdeen plc | 174,076 | $7.37M | 0.02% | −7,712−4.2% | Reduced |
| Greystone Financial Group, LLC | 169,740 | $7.18M | 1.79% | +169,740 | New |
| Neuberger Berman Group LLC | 171,565 | $7.10M | 0.01% | +46,765+37.5% | Added |
| State of New Jersey Common Pension Fund D | 167,463 | $7.09M | 0.02% | +8,172+5.1% | Added |
| State of Alaska, Department of Revenue | 165,453 | $7.00M | 0.07% | +9,055+5.8% | Added |
| Mutual Advisors, LLC | 162,259 | $6.87M | 0.41% | +10,313+6.8% | Added |
| Atalanta Sosnoff Capital, LLC | 162,070 | $6.86M | 0.16% | +162,070 | New |
| Sargent Investment Group, LLC | 159,823 | $6.76M | 1.61% | +3,150+2.0% | Added |
| Trust Co of Virginia | 159,110 | $6.73M | 0.74% | −2,103−1.3% | Reduced |
| Voya Investment Management LLC | 154,703 | $6.55M | 0.01% | +6,712+4.5% | Added |
| Snowden Capital Advisors LLC | 154,021 | $6.52M | 0.33% | +6,365+4.3% | Added |
| Macquarie Group Ltd | 137,492 | $5.82M | 0.00% | +6,720+5.1% | Added |
| Brookstone Capital Management | 126,974 | $5.61M | 0.10% | +29,721+30.6% | Added |
| CIBC World Markets Corp | 131,364 | $5.56M | 0.04% | +103,865+377.7% | Added |
| Dai-Ichi Life Insurance Company, Ltd | 129,805 | $5.49M | 0.07% | +120,000+1,223.9% | Added |
| State of Wisconsin Investment Board | 128,800 | $5.45M | 0.01% | −4,607−3.5% | Reduced |
| Ar Asset Management Inc | 128,600 | $5.44M | 1.52% | 00.0% | Unchanged |
| Oliver Luxxe Assets LLC | 127,684 | $5.40M | 1.48% | 00.0% | Unchanged |
| Truist Financial Corp | 127,500 | $5.39M | 0.01% | +19,342+17.9% | Added |
| Berger Financial Group, Inc | 127,463 | $5.39M | 0.98% | −1,609−1.2% | Reduced |
| First Trust Advisors LP | 125,958 | $5.33M | 0.01% | +75,355+148.9% | Added |
| American Trust Investment Advisors, LLC | 118,841 | $5.03M | 2.70% | +1,555+1.3% | Added |
| Amalgamated Bank | 117,534 | $4.97M | 0.04% | +69,071+142.5% | Added |
| Janney Montgomery Scott LLC | 116,188 | $4.92M | 0.02% | −8,164−6.6% | Reduced |
| Woodstock Corp | 112,546 | $4.76M | 0.56% | −3,700−3.2% | Reduced |
| Zimmer Partners, LP | 112,500 | $4.76M | 0.07% | 00.0% | Unchanged |
| Cambridge Investment Research Advisors, Inc. | 110,673 | $4.68M | 0.02% | +1,215+1.1% | Added |
| WBI Investments | 110,299 | $4.67M | 0.72% | −9,960−8.3% | Reduced |
| Raymond James Financial Services Advisors, Inc. | 109,954 | $4.65M | 0.01% | −45,065−29.1% | Reduced |
| Fjarde Ap-Fonden /Fourth Swedish National Pension Fund | 109,565 | $4.64M | 0.04% | +6,800+6.6% | Added |
| AMP Capital Investors Ltd | 108,968 | $4.61M | 0.02% | −4,136−3.7% | Reduced |
| Avantax Advisory Services, Inc. | 107,840 | $4.57M | 0.08% | +1,860+1.8% | Added |
| Oregon Public Employees Retirement Fund | 107,014 | $4.53M | 0.05% | +8,698+8.8% | Added |
| Korea Investment CORP | 104,200 | $4.41M | 0.01% | −162,400−60.9% | Reduced |
| Treasurer of the State of North Carolina | 103,933 | $4.40M | 0.03% | −7,180−6.5% | Reduced |
| Baker Ellis Asset Management LLC | 102,253 | $4.33M | 0.85% | +6,652+7.0% | Added |
| Royal London Asset Management Ltd | 101,654 | $4.30M | 0.02% | 00.0% | Unchanged |
| Daiwa Securities Group Inc. | 100,490 | $4.25M | 0.03% | +1,542+1.6% | Added |
| The PNC Financial Services Group, Inc. | 100,392 | $4.25M | 0.00% | +2,251+2.3% | Added |
| Healthcare of Ontario Pension Plan Trust Fund | 100,000 | $4.23M | 0.01% | +100,000 | New |
| Pensionfund DSM Netherlands | 99,500 | $4.21M | 0.54% | +4,000+4.2% | Added |
| TD Private Client Wealth LLC | 99,225 | $4.20M | 0.18% | +3,811+4.0% | Added |
| Natixis Advisors, L.P. | 98,715 | $4.18M | 0.02% | +5,871+6.3% | Added |
| Vestcor Inc | 98,220 | $4.16M | 0.14% | +79,681+429.8% | Added |
| Sonora Investment Management, LLC | 96,464 | $4.08M | 0.53% | +885+0.9% | Added |
| Victory Capital Management Inc | 94,112 | $3.98M | 0.00% | −40,071−29.9% | Reduced |
| Worldquant Millennium Advisors LLC | 94,029 | $3.98M | 0.09% | 00.0% | Unchanged |
| Chicago Capital, LLC | 93,489 | $3.96M | 0.15% | −927−1.0% | Reduced |
| Aviva PLC | 92,715 | $3.92M | 0.02% | −2,273−2.4% | Reduced |
| Siemens Fonds Invest GmbH | 92,167 | $3.90M | 0.46% | −8,688−8.6% | Reduced |
| Azimuth Capital Management LLC | 91,508 | $3.87M | 0.17% | +4,385+5.0% | Added |
| American International Group, Inc. | 89,798 | $3.80M | 0.02% | −38,071−29.8% | Reduced |
| SEI Investments Co | 89,543 | $3.80M | 0.01% | −3,139−3.4% | Reduced |
| Beck Capital Management, LLC | 88,962 | $3.77M | 1.27% | +40,605+84.0% | Added |
| Nelson Capital Management, LLC | 88,391 | $3.74M | 0.76% | +2,496+2.9% | Added |
| ProShare Advisors LLC | 87,959 | $3.72M | 0.01% | −13,892−13.6% | Reduced |
| Comerica Bank | 81,014 | $3.71M | 0.02% | −300.0% | Reduced |
| Forsta Ap-Fonden | 86,100 | $3.64M | 0.04% | −18,400−17.6% | Reduced |
| Advisory Services Network, LLC | 85,101 | $3.60M | 0.11% | +17,832+26.5% | Added |
| Moors & Cabot, Inc. | 85,067 | $3.60M | 0.25% | +363+0.4% | Added |
| Erste Asset Management GmbH | 82,500 | $3.49M | 0.07% | +82,500 | New |
| TRUE Private Wealth Advisors | 80,528 | $3.46M | 0.51% | −17,350−17.7% | Reduced |
| Arizona State Retirement System | 81,521 | $3.45M | 0.03% | −1,566−1.9% | Reduced |
| NN Investment Partners Holdings N.V. | 79,416 | $3.36M | 0.02% | +49,050+161.5% | Added |
| USS Investment Management Ltd | 79,281 | $3.36M | 0.03% | 00.0% | Unchanged |
| State of Michigan Retirement System | 77,896 | $3.30M | 0.02% | +800+1.0% | Added |
| Voloridge Investment Management, LLC | 77,149 | $3.27M | 0.02% | +77,149 | New |
| Duality Advisers, LP | 77,072 | $3.26M | 0.29% | +77,072 | New |
| Private Advisor Group, LLC | 75,309 | $3.19M | 0.03% | +1,173+1.6% | Added |
| Westpac Banking Corp | 75,022 | $3.17M | 0.03% | +4,801+6.8% | Added |
| Schonfeld Strategic Advisors LLC | 73,300 | $3.10M | 0.03% | +73,300 | New |
| Burney Co | 70,445 | $2.98M | 0.14% | +19,876+39.3% | Added |
| Cetera Advisor Networks LLC | 70,213 | $2.97M | 0.04% | +13,634+24.1% | Added |
| Peapack Gladstone Financial Corp | 69,255 | $2.93M | 0.07% | −1,906−2.7% | Reduced |
| Banco Bilbao Vizcaya Argentaria, S.A. | 69,177 | $2.93M | 0.05% | +23,158+50.3% | Added |
| Truvestments Capital LLC | 68,168 | $2.88M | 1.58% | +5,920+9.5% | Added |
| Advisors Asset Management, Inc. | 67,753 | $2.87M | 0.04% | +5,266+8.4% | Added |
| MetLife Investment Management | 66,940 | $2.83M | 0.02% | −1,789−2.6% | Reduced |
| Cetera Advisors LLC | 64,247 | $2.72M | 0.06% | −1,687−2.6% | Reduced |
| Salem Investment Counselors Inc | 63,598 | $2.69M | 0.15% | −57,525−47.5% | Reduced |
| Metropolitan Life Insurance Co | 63,249 | $2.68M | 0.04% | −10,675−14.4% | Reduced |
| HighTower Advisors, LLC | 62,744 | $2.65M | 0.01% | −23,430−27.2% | Reduced |
| Susquehanna International Group, LLP | 62,466 | $2.64M | 0.00% | −22,473−26.5% | Reduced |
| Thrivent Financial for Lutherans | 60,518 | $2.56M | 0.01% | +26,779+79.4% | Added |