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, Q4 2021
Institutional positions in Iron Mountain Inc as of Dec 31, 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
- 754
- +53 vs. Q3 2021
- Shares held
- 228.4M
- −36.3K (0.0%) vs. Q3 2021
- Total value
- $12.0B
- +$2.01B (+20.3%) vs. Q3 2021
- New holders
- 126
- 265 more added
- Sold out
- 73
- 243 more reduced
10 institutions that held it in Q3 2021 haven't filed for Q4 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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, Q4 2021
Shares, value and share of portfolio for each institution holding Iron Mountain Inc; share changes are against Q3 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Millennium Management LLC | 206,924 | $10.8M | 0.01% | +29,090+16.4% | Added |
| Tdam USA Inc. | 204,882 | $10.7M | 0.67% | −25,596−11.1% | Reduced |
| Toronto Dominion Bank | 203,907 | $10.7M | 0.01% | +15,387+8.2% | Added |
| Vancity Investment Management Ltd | 202,361 | $10.6M | 1.22% | +6,169+3.1% | Added |
| Gilman Hill Asset Management, LLC | 196,438 | $10.3M | 2.29% | +5,637+3.0% | Added |
| WealthTrust Axiom LLC | 194,448 | $10.2M | 3.25% | −13,058−6.3% | Reduced |
| Sheaff Brock Investment Advisors, LLC | 189,631 | $9.92M | 0.86% | +4,900+2.7% | Added |
| Canada Pension Plan Investment Board | 188,818 | $9.88M | 0.01% | −57,795−23.4% | Reduced |
| State of Alaska, Department of Revenue | 188,464 | $9.86M | 0.10% | −4,268−2.2% | Reduced |
| Pictet Asset Management SA | 186,005 | $9.73M | 0.01% | −53,891−22.5% | Reduced |
| Guggenheim Capital LLC | 175,036 | $9.16M | 0.05% | +7,352+4.4% | Added |
| SEI Investments Co | 173,287 | $9.12M | 0.02% | −15,772−8.3% | Reduced |
| Advisor Group Holdings, Inc. | 173,928 | $9.10M | 0.02% | −23,632−12.0% | Reduced |
| Chevy Chase Trust Holdings, Inc. | 173,649 | $9.09M | 0.03% | −4,078−2.3% | Reduced |
| Swiss Life Asset Management Ltd | 173,430 | $9.08M | 0.12% | −1,109−0.6% | Reduced |
| Sargent Investment Group, LLC | 170,475 | $8.92M | 2.03% | +6,400+3.9% | Added |
| Mutual Advisors, LLC | 169,261 | $8.86M | 0.47% | +5,330+3.3% | Added |
| Public Employees Retirement System of Ohio | 165,052 | $8.64M | 0.03% | −5,030−3.0% | Reduced |
| Atalanta Sosnoff Capital, LLC | 164,265 | $8.60M | 0.19% | +389+0.2% | Added |
| Standard Life Aberdeen plc | 160,941 | $8.42M | 0.02% | −11,988−6.9% | Reduced |
| Trust Co of Virginia | 160,268 | $8.39M | 0.84% | +1,210+0.8% | Added |
| State of New Jersey Common Pension Fund D | 159,127 | $8.33M | 0.02% | −6,602−4.0% | Reduced |
| Snowden Capital Advisors LLC | 158,435 | $8.29M | 0.42% | +177+0.1% | Added |
| Greystone Financial Group, LLC | 155,396 | $8.13M | 1.95% | +29,778+23.7% | Added |
| CIBC World Markets Corp | 155,069 | $8.12M | 0.04% | −29,339−15.9% | Reduced |
| Janney Montgomery Scott LLC | 149,584 | $7.83M | 0.03% | +5,963+4.2% | Added |
| Nisa Investment Advisors, LLC | 158,721 | $7.29M | 0.05% | −95,069−37.5% | Reduced |
| Forsta Ap-Fonden | 137,400 | $7.19M | 0.07% | +22,900+20.0% | Added |
| State of Wisconsin Investment Board | 136,045 | $7.12M | 0.01% | −2,271−1.6% | Reduced |
| Ar Asset Management Inc | 131,600 | $6.89M | 1.75% | 00.0% | Unchanged |
| Andra AP-fonden | 129,600 | $6.78M | 0.14% | −76,600−37.1% | Reduced |
| Berger Financial Group, Inc | 125,235 | $6.55M | 0.87% | +691+0.6% | Added |
| Brookstone Capital Management | 139,899 | $6.55M | 0.11% | −2,065−1.5% | Reduced |
| Neuberger Berman Group LLC | 129,890 | $6.53M | 0.01% | −25,478−16.4% | Reduced |
| Ensign Peak Advisors, Inc | 119,878 | $6.27M | 0.01% | +83,672+231.1% | Added |
| Natixis Advisors, L.P. | 117,344 | $6.14M | 0.02% | +7,190+6.5% | Added |
| Truist Financial Corp | 117,057 | $6.13M | 0.01% | −14,929−11.3% | Reduced |
| American Trust Investment Advisors, LLC | 113,571 | $5.94M | 2.96% | +370+0.3% | Added |
| Avantax Advisory Services, Inc. | 112,760 | $5.90M | 0.09% | +6,727+6.3% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 112,548 | $5.89M | 0.03% | −65,303−36.7% | Reduced |
| Woodstock Corp | 109,819 | $5.75M | 0.60% | −2,000−1.8% | Reduced |
| Daiwa Securities Group Inc. | 109,235 | $5.72M | 0.03% | +7,696+7.6% | Added |
| Treasurer of the State of North Carolina | 107,832 | $5.64M | 0.03% | +410+0.4% | Added |
| ProShare Advisors LLC | 107,559 | $5.63M | 0.01% | +18,283+20.5% | Added |
| NN Investment Partners Holdings N.V. | 107,170 | $5.61M | 0.03% | +23,111+27.5% | Added |
| Amalgamated Bank | 105,845 | $5.54M | 0.04% | −8,623−7.5% | Reduced |
| Westpac Banking Corp | 105,101 | $5.50M | 0.06% | +34,579+49.0% | Added |
| Baker Ellis Asset Management LLC | 104,983 | $5.49M | 0.97% | +1,297+1.3% | Added |
| WBI Investments | 103,173 | $5.26M | 0.84% | −2,465−2.3% | Reduced |
| Pensionfund DSM Netherlands | 99,500 | $5.21M | 0.60% | 00.0% | Unchanged |
| Evergreen Capital Management LLC | 97,494 | $5.10M | 0.20% | +2,932+3.1% | Added |
| Foresight Capital Management Advisors, Inc. | 97,365 | $5.09M | 4.96% | +97,365 | New |
| Royal London Asset Management Ltd | 97,179 | $5.09M | 0.02% | −2,363−2.4% | Reduced |
| Cambridge Investment Research Advisors, Inc. | 96,872 | $5.07M | 0.02% | −1,059−1.1% | Reduced |
| Moors & Cabot, Inc. | 95,751 | $5.01M | 0.31% | +4,910+5.4% | Added |
| Oregon Public Employees Retirement Fund | 94,149 | $4.93M | 0.05% | −18,640−16.5% | Reduced |
| Chicago Capital, LLC | 93,465 | $4.89M | 0.18% | 00.0% | Unchanged |
| Sonora Investment Management Group, LLC | 93,214 | $4.88M | 0.57% | +93,214 | New |
| Macquarie Group Ltd | 92,753 | $4.85M | 0.00% | −47,433−33.8% | Reduced |
| Fjarde Ap-Fonden /Fourth Swedish National Pension Fund | 90,665 | $4.74M | 0.04% | −14,700−14.0% | Reduced |
| Private Advisor Group, LLC | 90,611 | $4.74M | 0.04% | −6,187−6.4% | Reduced |
| Azimuth Capital Management LLC | 89,340 | $4.67M | 0.19% | −2,328−2.5% | Reduced |
| Burney Co | 88,958 | $4.66M | 0.20% | +5,646+6.8% | Added |
| American International Group, Inc. | 88,931 | $4.65M | 0.02% | +809+0.9% | Added |
| ETF Managers Group, LLC | 88,469 | $4.65M | 0.09% | +88,469 | New |
| TD Private Client Wealth LLC | 88,303 | $4.62M | 0.19% | −12,051−12.0% | Reduced |
| Aviva PLC | 87,732 | $4.59M | 0.02% | −125−0.1% | Reduced |
| Nelson Capital Management, LLC | 87,559 | $4.58M | 0.85% | −241−0.3% | Reduced |
| State of Michigan Retirement System | 84,194 | $4.41M | 0.02% | +6,198+7.9% | Added |
| G&S Capital LLC | 83,624 | $4.38M | 2.18% | +23,351+38.7% | Added |
| National Pension Service | 83,245 | $4.36M | 0.01% | 00.0% | Unchanged |
| Siemens Fonds Invest GmbH | 82,499 | $4.33M | 0.29% | −12,719−13.4% | Reduced |
| Wealthfront Advisers LLC | 82,654 | $4.33M | 0.02% | −10,038−10.8% | Reduced |
| Catalyst Capital Advisors LLC | 82,070 | $4.29M | 0.20% | +71,700+691.4% | Added |
| Banco Bilbao Vizcaya Argentaria, S.A. | 80,606 | $4.24M | 0.06% | +11,286+16.3% | Added |
| Jane Street Group, LLC | 79,571 | $4.16M | 0.01% | +48,690+157.7% | Added |
| Arizona State Retirement System | 78,810 | $4.12M | 0.03% | −2,219−2.7% | Reduced |
| Donoghue Forlines LLC | 78,475 | $4.11M | 0.69% | +15,326+24.3% | Added |
| Erste Asset Management GmbH | 77,300 | $4.08M | 0.07% | −10,700−12.2% | Reduced |
| Peak Financial Advisors LLC | 76,979 | $4.03M | 3.10% | +1,696+2.3% | Added |
| Bank of Nova Scotia | 76,081 | $3.98M | 0.01% | −22,940−23.2% | Reduced |
| Franklin Resources Inc | 75,886 | $3.97M | 0.00% | −30,917−28.9% | Reduced |
| Breiter Capital Management Inc | 75,603 | $3.96M | 1.94% | −41−0.1% | Reduced |
| Cetera Advisor Networks LLC | 74,855 | $3.92M | 0.05% | +793+1.1% | Added |
| Truvestments Capital LLC | 70,937 | $3.71M | 1.86% | +357+0.5% | Added |
| Advisors Asset Management, Inc. | 69,374 | $3.63M | 0.05% | −2,533−3.5% | Reduced |
| Cetera Advisors LLC | 68,615 | $3.59M | 0.07% | −408−0.6% | Reduced |
| Oliver Luxxe Assets LLC | 68,323 | $3.58M | 0.91% | 00.0% | Unchanged |
| Integrated Advisors Network LLC | 68,032 | $3.56M | 0.21% | +68,032 | New |
| Pinebridge Investments, L.P. | 67,548 | $3.54M | 0.04% | +65,267+2,861.3% | Added |
| Victory Capital Management Inc | 67,431 | $3.53M | 0.00% | −4,324−6.0% | Reduced |
| Salem Investment Counselors Inc | 66,966 | $3.50M | 0.12% | +1,193+1.8% | Added |
| M&T Bank Corp | 65,323 | $3.42M | 0.01% | +5,696+9.6% | Added |
| Susquehanna International Group, LLP | 65,282 | $3.42M | 0.01% | +31,029+90.6% | Added |
| HighTower Advisors, LLC | 65,012 | $3.40M | 0.01% | +4,880+8.1% | Added |
| MetLife Investment Management | 63,972 | $3.35M | 0.03% | −1,404−2.1% | Reduced |
| USS Investment Management Ltd | 63,698 | $3.33M | 0.03% | 00.0% | Unchanged |
| Squarepoint Ops LLC | 63,372 | $3.32M | 0.02% | −16,174−20.3% | Reduced |
| Beck Capital Management, LLC | 62,520 | $3.27M | 1.01% | −24,014−27.8% | Reduced |
| Skandinaviska Enskilda Banken AB (publ) | 61,675 | $3.24M | 0.02% | −193,318−75.8% | Reduced |