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 |
|---|---|---|---|---|---|
| Siemens Fonds Invest GmbH | 84,077 | $4.66M | 0.38% | +1,578+1.9% | Added |
| State of Michigan Retirement System | 84,344 | $4.67M | 0.03% | +150+0.2% | Added |
| Moors & Cabot, Inc. | 85,465 | $4.74M | 0.29% | −10,286−10.7% | Reduced |
| Woodstock Corp | 85,921 | $4.76M | 0.56% | −23,898−21.8% | Reduced |
| American International Group, Inc. | 86,599 | $4.80M | 0.03% | −2,332−2.6% | Reduced |
| Nelson Capital Management, LLC | 86,636 | $4.80M | 0.94% | −923−1.1% | Reduced |
| Oregon Public Employees Retirement Fund | 86,743 | $4.81M | 0.05% | −7,406−7.9% | Reduced |
| MetLife Investment Management | 87,738 | $4.86M | 0.03% | +23,766+37.2% | Added |
| Erste Asset Management GmbH | 88,600 | $4.91M | 0.09% | +11,300+14.6% | Added |
| Susquehanna International Group, LLP | 88,744 | $4.92M | 0.01% | +23,462+35.9% | Added |
| Westpac Banking Corp | 88,773 | $4.92M | 0.06% | −16,328−15.5% | Reduced |
| TD Private Client Wealth LLC | 88,856 | $4.92M | 0.21% | +553+0.6% | Added |
| USS Investment Management Ltd | 92,375 | $5.12M | 0.04% | +28,677+45.0% | Added |
| BNP Paribas Arbitrage, SA | 92,415 | $5.12M | 0.01% | −190,630−67.3% | Reduced |
| Chicago Capital, LLC | 92,929 | $5.15M | 0.22% | −536−0.6% | Reduced |
| Standard Life Aberdeen plc | 93,462 | $5.21M | 0.01% | −67,479−41.9% | Reduced |
| Burney Co | 94,477 | $5.24M | 0.24% | +5,519+6.2% | Added |
| Wealthfront Advisers LLC | 95,814 | $5.31M | 0.02% | +13,160+15.9% | Added |
| Fifth Third Bancorp | 96,291 | $5.33M | 0.02% | +92,875+2,718.8% | Added |
| Sonora Investment Management Group, LLC | 96,404 | $5.34M | 0.60% | +3,190+3.4% | Added |
| M&T Bank Corp | 97,648 | $5.41M | 0.02% | +32,325+49.5% | Added |
| Royal London Asset Management Ltd | 98,824 | $5.48M | 0.02% | +1,645+1.7% | Added |
| ProShare Advisors LLC | 99,769 | $5.53M | 0.01% | −7,790−7.2% | Reduced |
| Evergreen Capital Management LLC | 99,985 | $5.54M | 0.23% | +2,491+2.6% | Added |
| Ardsley Advisory Partners LP | 100,000 | $5.54M | 1.14% | +100,000 | New |
| Foresight Capital Management Advisors, Inc. | 100,468 | $5.57M | 6.21% | +3,103+3.2% | Added |
| Berger Financial Group, Inc | 102,355 | $5.67M | 0.72% | −22,880−18.3% | Reduced |
| Fjarde Ap-Fonden /Fourth Swedish National Pension Fund | 102,384 | $5.67M | 0.06% | +11,719+12.9% | Added |
| Jane Street Group, LLC | 102,396 | $5.67M | 0.01% | +22,825+28.7% | Added |
| Private Advisor Group, LLC | 103,872 | $5.76M | 0.04% | +13,261+14.6% | Added |
| Aviva PLC | 103,894 | $5.76M | 0.03% | +16,162+18.4% | Added |
| Amalgamated Bank | 105,699 | $5.86M | 0.05% | −146−0.1% | Reduced |
| Amalgamated Financial Corp. | 105,699 | $5.86M | 0.05% | +105,699 | New |
| Baker Ellis Asset Management LLC | 107,228 | $5.94M | 1.06% | +2,245+2.1% | Added |
| Daiwa Securities Group Inc. | 107,340 | $5.95M | 0.04% | −1,895−1.7% | Reduced |
| Cambridge Investment Research Advisors, Inc. | 107,591 | $5.96M | 0.03% | +10,719+11.1% | Added |
| Treasurer of the State of North Carolina | 109,515 | $6.07M | 0.03% | +1,683+1.6% | Added |
| Truist Financial Corp | 110,652 | $6.13M | 0.01% | −6,405−5.5% | Reduced |
| Korea Investment CORP | 112,700 | $6.25M | 0.02% | −270,400−70.6% | Reduced |
| Azimuth Capital Management LLC | 114,160 | $6.33M | 0.27% | +24,820+27.8% | Added |
| Renaissance Technologies LLC | 116,300 | $6.44M | 0.01% | −241,263−67.5% | Reduced |
| Canada Pension Plan Investment Board | 116,610 | $6.46M | 0.01% | −72,208−38.2% | Reduced |
| EWG Elevate Inc. | 117,332 | $6.50M | 2.55% | +97,135+480.9% | Added |
| Swiss Life Asset Management Ltd | 124,995 | $6.93M | 0.10% | −48,435−27.9% | Reduced |
| Natixis Advisors, L.P. | 127,575 | $7.07M | 0.03% | +10,231+8.7% | Added |
| Forsta Ap-Fonden | 128,300 | $7.11M | 0.08% | −9,100−6.6% | Reduced |
| Neuberger Berman Group LLC | 128,820 | $7.21M | 0.01% | −1,070−0.8% | Reduced |
| Ar Asset Management Inc | 131,600 | $7.29M | 1.84% | 00.0% | Unchanged |
| State of Wisconsin Investment Board | 134,468 | $7.45M | 0.02% | −1,577−1.2% | Reduced |
| Victory Capital Management Inc | 140,546 | $7.55M | 0.01% | +73,115+108.4% | Added |
| Nisa Investment Advisors, LLC | 147,152 | $8.15M | 0.06% | −11,569−7.3% | Reduced |
| Squarepoint Ops LLC | 147,272 | $8.16M | 0.06% | +83,900+132.4% | Added |
| Millennium Management LLC | 150,253 | $8.33M | 0.01% | −56,671−27.4% | Reduced |
| Janney Montgomery Scott LLC | 155,549 | $8.62M | 0.04% | +5,965+4.0% | Added |
| Public Employees Retirement System of Ohio | 156,120 | $8.65M | 0.03% | −8,932−5.4% | Reduced |
| SEI Investments Co | 154,803 | $8.67M | 0.02% | −18,484−10.7% | Reduced |
| State of New Jersey Common Pension Fund D | 159,127 | $8.82M | 0.03% | 00.0% | Unchanged |
| Greystone Financial Group, LLC | 159,704 | $8.85M | 2.24% | +4,308+2.8% | Added |
| Toronto Dominion Bank | 160,323 | $8.88M | 0.01% | −43,584−21.4% | Reduced |
| Snowden Capital Advisors LLC | 161,117 | $8.93M | 0.36% | +2,682+1.7% | Added |
| Trust Co of Virginia | 162,318 | $8.99M | 0.96% | +2,050+1.3% | Added |
| CIBC World Markets Corp | 163,363 | $9.05M | 0.07% | +8,294+5.3% | Added |
| WealthTrust Axiom LLC | 166,015 | $9.20M | 2.87% | −28,433−14.6% | Reduced |
| Mutual Advisors, LLC | 167,554 | $9.28M | 0.52% | −1,707−1.0% | Reduced |
| Brookstone Capital Management | 168,059 | $9.33M | 0.18% | +28,160+20.1% | Added |
| Guggenheim Capital LLC | 169,433 | $9.39M | 0.06% | −5,603−3.2% | Reduced |
| Chevy Chase Trust Holdings, Inc. | 174,117 | $9.65M | 0.03% | +468+0.3% | Added |
| Sargent Investment Group, LLC | 175,045 | $9.70M | 2.45% | +4,570+2.7% | Added |
| First Trust Advisors LP | 178,088 | $9.87M | 0.01% | −170,679−48.9% | Reduced |
| Citadel Advisors LLC | 179,458 | $9.94M | 0.01% | +179,458 | New |
| Commonwealth Equity Services, LLC | 184,183 | $10.2M | 0.02% | −26,705−12.7% | Reduced |
| Advisor Group Holdings, Inc. | 190,125 | $10.4M | 0.02% | +16,197+9.3% | Added |
| State of Alaska, Department of Revenue | 190,109 | $10.5M | 0.11% | +1,645+0.9% | Added |
| NN Investment Partners Holdings N.V. | 191,476 | $10.6M | 0.06% | +84,306+78.7% | Added |
| Sheaff Brock Investment Advisors, LLC | 193,705 | $10.7M | 0.96% | +4,074+2.1% | Added |
| Storebrand Asset Management AS | 194,323 | $10.8M | 0.05% | −18,163−8.5% | Reduced |
| Vancity Investment Management Ltd | 197,849 | $11.0M | 1.30% | −4,512−2.2% | Reduced |
| Gilman Hill Asset Management, LLC | 199,882 | $11.1M | 2.52% | +3,444+1.8% | Added |
| Robeco Institutional Asset Management B.V. | 206,685 | $11.5M | 0.03% | −31,121−13.1% | Reduced |
| Allspring Global Investments Holdings, LLC | 208,684 | $11.6M | 0.01% | −39,022−15.8% | Reduced |
| Manufacturers Life Insurance Company, The | 215,106 | $11.9M | 0.01% | −38,024−15.0% | Reduced |
| Crossmark Global Holdings, Inc. | 218,383 | $12.1M | 0.27% | −1,152−0.5% | Reduced |
| Dai-Ichi Life Insurance Company, Ltd | 219,805 | $12.2M | 0.19% | +10,000+4.8% | Added |
| TCW Group Inc | 234,595 | $13.0M | 0.12% | −9,390−3.8% | Reduced |
| Prudential Financial Inc | 249,434 | $13.8M | 0.02% | −1,233−0.5% | Reduced |
| Commerce Bank | 256,795 | $14.2M | 0.10% | +2,741+1.1% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 261,950 | $14.5M | 0.07% | +149,402+132.7% | Added |
| United Capital Financial Advisers, LLC | 263,554 | $14.6M | 0.07% | −4,794−1.8% | Reduced |
| HSBC Holdings PLC | 267,315 | $14.8M | 0.02% | −59,326−18.2% | Reduced |
| Mitsubishi UFJ Trust & Banking Corp | 268,413 | $14.9M | 0.03% | −3,379−1.2% | Reduced |
| Citigroup Inc | 270,613 | $15.0M | 0.02% | −74,704−21.6% | Reduced |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 272,843 | $15.1M | 0.06% | +19,713+7.8% | Added |
| Hall Private Wealth Advisors | 274,186 | $15.2M | 8.11% | +26,625+10.8% | Added |
| Raymond James Financial Services Advisors, Inc. | 275,277 | $15.3M | 0.03% | +7,887+2.9% | Added |
| Blair William & Co | 278,263 | $15.4M | 0.05% | +7,865+2.9% | Added |
| Boston Common Asset Management, LLC | 280,510 | $15.5M | 0.67% | −48,202−14.7% | Reduced |
| Adell Harriman & Carpenter Inc | 283,273 | $15.7M | 1.53% | −2,787−1.0% | Reduced |
| Retirement Systems of Alabama | 289,229 | $16.0M | 0.06% | −2,809−1.0% | Reduced |
| Swedbank AB | 290,249 | $16.1M | 0.03% | +4,756+1.7% | Added |
| Adage Capital Partners GP, L.L.C. | 302,352 | $16.8M | 0.03% | −6,200−2.0% | Reduced |