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 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 |
|---|---|---|---|---|---|
| Westpac Banking Corp | 75,022 | $3.17M | 0.03% | +4,801+6.8% | Added |
| Private Advisor Group, LLC | 75,309 | $3.19M | 0.03% | +1,173+1.6% | Added |
| Duality Advisers, LP | 77,072 | $3.26M | 0.29% | +77,072 | New |
| Voloridge Investment Management, LLC | 77,149 | $3.27M | 0.02% | +77,149 | New |
| State of Michigan Retirement System | 77,896 | $3.30M | 0.02% | +800+1.0% | Added |
| USS Investment Management Ltd | 79,281 | $3.36M | 0.03% | 00.0% | Unchanged |
| NN Investment Partners Holdings N.V. | 79,416 | $3.36M | 0.02% | +49,050+161.5% | Added |
| Arizona State Retirement System | 81,521 | $3.45M | 0.03% | −1,566−1.9% | Reduced |
| TRUE Private Wealth Advisors | 80,528 | $3.46M | 0.51% | −17,350−17.7% | Reduced |
| Erste Asset Management GmbH | 82,500 | $3.49M | 0.07% | +82,500 | New |
| Moors & Cabot, Inc. | 85,067 | $3.60M | 0.25% | +363+0.4% | Added |
| Advisory Services Network, LLC | 85,101 | $3.60M | 0.11% | +17,832+26.5% | Added |
| Forsta Ap-Fonden | 86,100 | $3.64M | 0.04% | −18,400−17.6% | Reduced |
| Comerica Bank | 81,014 | $3.71M | 0.02% | −300.0% | Reduced |
| ProShare Advisors LLC | 87,959 | $3.72M | 0.01% | −13,892−13.6% | Reduced |
| Nelson Capital Management, LLC | 88,391 | $3.74M | 0.76% | +2,496+2.9% | Added |
| Beck Capital Management, LLC | 88,962 | $3.77M | 1.27% | +40,605+84.0% | Added |
| SEI Investments Co | 89,543 | $3.80M | 0.01% | −3,139−3.4% | Reduced |
| American International Group, Inc. | 89,798 | $3.80M | 0.02% | −38,071−29.8% | Reduced |
| Azimuth Capital Management LLC | 91,508 | $3.87M | 0.17% | +4,385+5.0% | Added |
| Siemens Fonds Invest GmbH | 92,167 | $3.90M | 0.46% | −8,688−8.6% | Reduced |
| Aviva PLC | 92,715 | $3.92M | 0.02% | −2,273−2.4% | Reduced |
| Chicago Capital, LLC | 93,489 | $3.96M | 0.15% | −927−1.0% | Reduced |
| Worldquant Millennium Advisors LLC | 94,029 | $3.98M | 0.09% | 00.0% | Unchanged |
| Victory Capital Management Inc | 94,112 | $3.98M | 0.00% | −40,071−29.9% | Reduced |
| Sonora Investment Management, LLC | 96,464 | $4.08M | 0.53% | +885+0.9% | Added |
| Vestcor Inc | 98,220 | $4.16M | 0.14% | +79,681+429.8% | Added |
| Natixis Advisors, L.P. | 98,715 | $4.18M | 0.02% | +5,871+6.3% | Added |
| TD Private Client Wealth LLC | 99,225 | $4.20M | 0.18% | +3,811+4.0% | Added |
| Pensionfund DSM Netherlands | 99,500 | $4.21M | 0.54% | +4,000+4.2% | Added |
| Healthcare of Ontario Pension Plan Trust Fund | 100,000 | $4.23M | 0.01% | +100,000 | New |
| The PNC Financial Services Group, Inc. | 100,392 | $4.25M | 0.00% | +2,251+2.3% | Added |
| Daiwa Securities Group Inc. | 100,490 | $4.25M | 0.03% | +1,542+1.6% | Added |
| Royal London Asset Management Ltd | 101,654 | $4.30M | 0.02% | 00.0% | Unchanged |
| Baker Ellis Asset Management LLC | 102,253 | $4.33M | 0.85% | +6,652+7.0% | Added |
| Treasurer of the State of North Carolina | 103,933 | $4.40M | 0.03% | −7,180−6.5% | Reduced |
| Korea Investment CORP | 104,200 | $4.41M | 0.01% | −162,400−60.9% | Reduced |
| Oregon Public Employees Retirement Fund | 107,014 | $4.53M | 0.05% | +8,698+8.8% | Added |
| Avantax Advisory Services, Inc. | 107,840 | $4.57M | 0.08% | +1,860+1.8% | Added |
| AMP Capital Investors Ltd | 108,968 | $4.61M | 0.02% | −4,136−3.7% | Reduced |
| Fjarde Ap-Fonden /Fourth Swedish National Pension Fund | 109,565 | $4.64M | 0.04% | +6,800+6.6% | Added |
| Raymond James Financial Services Advisors, Inc. | 109,954 | $4.65M | 0.01% | −45,065−29.1% | Reduced |
| WBI Investments | 110,299 | $4.67M | 0.72% | −9,960−8.3% | Reduced |
| Cambridge Investment Research Advisors, Inc. | 110,673 | $4.68M | 0.02% | +1,215+1.1% | Added |
| Zimmer Partners, LP | 112,500 | $4.76M | 0.07% | 00.0% | Unchanged |
| Woodstock Corp | 112,546 | $4.76M | 0.56% | −3,700−3.2% | Reduced |
| Janney Montgomery Scott LLC | 116,188 | $4.92M | 0.02% | −8,164−6.6% | Reduced |
| Amalgamated Bank | 117,534 | $4.97M | 0.04% | +69,071+142.5% | Added |
| American Trust Investment Advisors, LLC | 118,841 | $5.03M | 2.70% | +1,555+1.3% | Added |
| First Trust Advisors LP | 125,958 | $5.33M | 0.01% | +75,355+148.9% | Added |
| Berger Financial Group, Inc | 127,463 | $5.39M | 0.98% | −1,609−1.2% | Reduced |
| Truist Financial Corp | 127,500 | $5.39M | 0.01% | +19,342+17.9% | Added |
| Oliver Luxxe Assets LLC | 127,684 | $5.40M | 1.48% | 00.0% | Unchanged |
| Ar Asset Management Inc | 128,600 | $5.44M | 1.52% | 00.0% | Unchanged |
| State of Wisconsin Investment Board | 128,800 | $5.45M | 0.01% | −4,607−3.5% | Reduced |
| Dai-Ichi Life Insurance Company, Ltd | 129,805 | $5.49M | 0.07% | +120,000+1,223.9% | Added |
| CIBC World Markets Corp | 131,364 | $5.56M | 0.04% | +103,865+377.7% | Added |
| Brookstone Capital Management | 126,974 | $5.61M | 0.10% | +29,721+30.6% | Added |
| Macquarie Group Ltd | 137,492 | $5.82M | 0.00% | +6,720+5.1% | Added |
| Snowden Capital Advisors LLC | 154,021 | $6.52M | 0.33% | +6,365+4.3% | Added |
| Voya Investment Management LLC | 154,703 | $6.55M | 0.01% | +6,712+4.5% | Added |
| Trust Co of Virginia | 159,110 | $6.73M | 0.74% | −2,103−1.3% | Reduced |
| Sargent Investment Group, LLC | 159,823 | $6.76M | 1.61% | +3,150+2.0% | Added |
| Atalanta Sosnoff Capital, LLC | 162,070 | $6.86M | 0.16% | +162,070 | New |
| Mutual Advisors, LLC | 162,259 | $6.87M | 0.41% | +10,313+6.8% | Added |
| State of Alaska, Department of Revenue | 165,453 | $7.00M | 0.07% | +9,055+5.8% | Added |
| State of New Jersey Common Pension Fund D | 167,463 | $7.09M | 0.02% | +8,172+5.1% | Added |
| Neuberger Berman Group LLC | 171,565 | $7.10M | 0.01% | +46,765+37.5% | Added |
| Greystone Financial Group, LLC | 169,740 | $7.18M | 1.79% | +169,740 | New |
| Standard Life Aberdeen plc | 174,076 | $7.37M | 0.02% | −7,712−4.2% | Reduced |
| Citadel Advisors LLC | 174,575 | $7.39M | 0.01% | +146,017+511.3% | Added |
| Advisor Group Holdings, Inc. | 176,263 | $7.46M | 0.02% | −21,771−11.0% | Reduced |
| Public Employees Retirement System of Ohio | 177,141 | $7.50M | 0.03% | +17,540+11.0% | Added |
| Chevy Chase Trust Holdings, Inc. | 183,983 | $7.79M | 0.03% | −9,589−5.0% | Reduced |
| Mitsubishi UFJ Trust & Banking Corp | 183,649 | $7.79M | 0.02% | −19,639−9.7% | Reduced |
| Sheaff Brock Investment Advisors, LLC | 187,212 | $7.92M | 0.76% | −11,240−5.7% | Reduced |
| Gilman Hill Asset Management, LLC | 191,583 | $8.11M | 2.08% | +3,740+2.0% | Added |
| Commonwealth Equity Services, LLC | 193,220 | $8.18M | 0.02% | +29,048+17.7% | Added |
| Andra AP-fonden | 193,900 | $8.21M | 0.17% | +19,700+11.3% | Added |
| Vancity Investment Management Ltd | 197,115 | $8.34M | 1.17% | +197,115 | New |
| Nisa Investment Advisors, LLC | 197,900 | $8.38M | 0.05% | −13,284−6.3% | Reduced |
| American National Insurance Co | 201,540 | $8.53M | 0.32% | −335−0.2% | Reduced |
| Moody National Bank Trust Division | 201,753 | $8.54M | 0.17% | −825−0.4% | Reduced |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 203,157 | $8.60M | 0.05% | −138,481−40.5% | Reduced |
| Guggenheim Capital LLC | 210,260 | $8.90M | 0.05% | −33,715−13.8% | Reduced |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 211,716 | $8.96M | 0.05% | +14,526+7.4% | Added |
| Maplelane Capital, LLC | 212,453 | $8.99M | 0.70% | +212,453 | New |
| QS Investors, LLC | 214,023 | $9.06M | 0.11% | +47,840+28.8% | Added |
| Toronto Dominion Bank | 216,063 | $9.14M | 0.01% | +32,566+17.7% | Added |
| WealthTrust Axiom LLC | 216,834 | $9.18M | 2.95% | −792−0.4% | Reduced |
| Storebrand Asset Management AS | 224,441 | $9.50M | 0.05% | −14,090−5.9% | Reduced |
| Swiss Life Asset Management Ltd | 160,520 | $9.93M | 0.13% | −108,534−40.3% | Reduced |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 238,670 | $10.1M | 0.02% | +238,670 | New |
| Qube Research & Technologies Ltd | 238,813 | $10.1M | 0.13% | +238,813 | New |
| BNP Paribas Arbitrage, SA | 239,029 | $10.1M | 0.02% | +174,884+272.6% | Added |
| Pictet Asset Management Ltd | 242,822 | $10.3M | 0.01% | +107,076+78.9% | Added |
| Tdam USA Inc. | 237,011 | $10.4M | 0.64% | −14,628−5.8% | Reduced |
| Allianz Asset Management GmbH | 252,973 | $10.7M | 0.01% | +203,448+410.8% | Added |
| Blair William & Co | 255,219 | $10.8M | 0.04% | −14,831−5.5% | Reduced |
| United Capital Financial Advisers, LLC | 260,736 | $11.0M | 0.06% | −12,577−4.6% | Reduced |