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 2022
Institutional positions in Iron Mountain Inc as of Dec 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
- 782
- +54 vs. Q3 2022
- Shares held
- 228.9M
- +3.02M (+1.3%) vs. Q3 2022
- Total value
- $11.4B
- +$1.43B (+14.3%) vs. Q3 2022
- New holders
- 93
- 300 more added
- Sold out
- 39
- 251 more reduced
15 institutions that held it in Q3 2022 haven't filed for Q4 2022 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2022: 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 2022
Shares, value and share of portfolio for each institution holding Iron Mountain Inc; share changes are against Q3 2022.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Manufacturers Life Insurance Company, The | 212,829 | $10.6M | 0.01% | −7,361−3.3% | Reduced |
| Korea Investment CORP | 206,881 | $10.3M | 0.03% | +18,166+9.6% | Added |
| Gilman Hill Asset Management, LLC | 205,855 | $10.3M | 2.10% | +3,425+1.7% | Added |
| Guggenheim Capital LLC | 205,031 | $10.2M | 0.09% | +25,552+14.2% | Added |
| CIBC Private Wealth Group, LLC | 1,188,022 | $10.2M | 0.03% | −43,042−3.5% | Reduced |
| Sargent Investment Group, LLC | 190,003 | $9.47M | 2.94% | +8,333+4.6% | Added |
| State of Alaska, Department of Revenue | 187,086 | $9.32M | 0.12% | +1,960+1.1% | Added |
| Commonwealth Equity Services, LLC | 186,522 | $9.30M | 0.02% | +2,107+1.1% | Added |
| Storebrand Asset Management AS | 186,329 | $9.29M | 0.05% | +518+0.3% | Added |
| Trust Co of Virginia | 176,417 | $8.79M | 1.00% | +5,648+3.3% | Added |
| Sheaff Brock Investment Advisors, LLC | 175,394 | $8.74M | 0.97% | +870.0% | Added |
| Chevy Chase Trust Holdings, Inc. | 167,207 | $8.34M | 0.04% | −10,289−5.8% | Reduced |
| Mutual Advisors, LLC | 166,893 | $8.32M | 0.37% | −624−0.4% | Reduced |
| Forsta Ap-Fonden | 164,200 | $8.19M | 0.09% | +70,500+75.2% | Added |
| State of New Jersey Common Pension Fund D | 163,879 | $8.17M | 0.03% | 00.0% | Unchanged |
| Toronto Dominion Bank | 162,079 | $8.07M | 0.01% | +7,488+4.8% | Added |
| Janney Montgomery Scott LLC | 160,115 | $7.98M | 0.03% | +13,383+9.1% | Added |
| La Financiere de L'Echiquier | 159,150 | $7.93M | 0.50% | −26,953−14.5% | Reduced |
| Ardsley Advisory Partners LP | 155,000 | $7.73M | 1.96% | +10,000+6.9% | Added |
| Public Employees Retirement System of Ohio | 154,983 | $7.73M | 0.03% | +3,019+2.0% | Added |
| Advisor Group Holdings, Inc. | 150,159 | $7.49M | 0.02% | −19,999−11.8% | Reduced |
| Nisa Investment Advisors, LLC | 147,962 | $7.38M | 0.06% | +1,710+1.2% | Added |
| Standard Life Aberdeen plc | 147,239 | $7.34M | 0.02% | +10,258+7.5% | Added |
| Teacher Retirement System of Texas | 144,663 | $7.21M | 0.05% | +71,381+97.4% | Added |
| Susquehanna Fundamental Investments, LLC | 144,259 | $7.19M | 0.12% | −42,859−22.9% | Reduced |
| Andra AP-fonden | 141,500 | $7.05M | 0.21% | +54,900+63.4% | Added |
| WealthTrust Axiom LLC | 140,039 | $6.98M | 2.43% | −3,524−2.5% | Reduced |
| Snowden Capital Advisors LLC | 138,384 | $6.90M | 0.29% | −4,053−2.8% | Reduced |
| Susquehanna International Group, LLP | 138,301 | $6.89M | 0.01% | +112,078+427.4% | Added |
| Ar Asset Management Inc | 131,600 | $6.56M | 1.86% | 00.0% | Unchanged |
| EWG Elevate Inc. | 131,097 | $6.54M | 3.29% | +3,565+2.8% | Added |
| Natixis Advisors, L.P. | 129,999 | $6.48M | 0.02% | +4,710+3.8% | Added |
| Treasurer of the State of North Carolina | 129,447 | $6.45M | 0.04% | −1,030−0.8% | Reduced |
| CIBC World Markets Corp | 127,951 | $6.38M | 0.04% | +4,544+3.7% | Added |
| Cambridge Investment Research Advisors, Inc. | 121,713 | $6.07M | 0.03% | +3,255+2.7% | Added |
| Aew Capital Management L P | 121,630 | $6.06M | 0.24% | +121,630 | New |
| D. E. Shaw & Co., Inc. | 119,841 | $5.97M | 0.01% | +103,193+619.9% | Added |
| James Hambro & Partners | 119,147 | $5.94M | 0.45% | +69,810+141.5% | Added |
| SEI Investments Co | 117,663 | $5.87M | 0.01% | −12,947−9.9% | Reduced |
| Cetera Advisor Networks LLC | 114,171 | $5.69M | 0.05% | +13,560+13.5% | Added |
| State of Wisconsin Investment Board | 109,241 | $5.45M | 0.02% | +12,130+12.5% | Added |
| Amalgamated Bank | 109,123 | $5.44M | 0.05% | +1,960+1.8% | Added |
| Erste Asset Management GmbH | 107,400 | $5.37M | 0.11% | +10,200+10.5% | Added |
| Azimuth Capital Investment Management LLC | 106,845 | $5.33M | 0.27% | −2,395−2.2% | Reduced |
| Victory Capital Management Inc | 106,631 | $5.32M | 0.01% | −35,481−25.0% | Reduced |
| Berger Financial Group, Inc | 104,120 | $5.19M | 0.69% | +1,918+1.9% | Added |
| Knights of Columbus Asset Advisors LLC | 103,219 | $5.15M | 0.53% | +103,219 | New |
| Daiwa Securities Group Inc. | 102,550 | $5.11M | 0.04% | −77−0.1% | Reduced |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 102,175 | $5.09M | 0.03% | −101,140−49.7% | Reduced |
| Royal London Asset Management Ltd | 101,149 | $5.04M | 0.02% | 00.0% | Unchanged |
| M&T Bank Corp | 100,551 | $5.01M | 0.02% | −437−0.4% | Reduced |
| State of Tennessee, Treasury Department | 98,482 | $4.91M | 0.02% | −3,432−3.4% | Reduced |
| Macquarie Group Ltd | 96,836 | $4.83M | 0.01% | +8,702+9.9% | Added |
| Sonora Investment Management Group, LLC | 92,754 | $4.62M | 0.42% | −1,910−2.0% | Reduced |
| Chicago Capital, LLC | 92,156 | $4.59M | 0.25% | 00.0% | Unchanged |
| Bridgewater Associates, LP | 90,623 | $4.52M | 0.02% | +29,163+47.5% | Added |
| PFS Investments Inc. | 90,422 | $4.51M | 0.08% | +166+0.2% | Added |
| Westpac Banking Corp | 89,768 | $4.47M | 0.07% | +11,230+14.3% | Added |
| Ensign Peak Advisors, Inc | 89,336 | $4.45M | 0.01% | +2,900+3.4% | Added |
| La Banque Postale Asset Management SA | 87,489 | $4.36M | 0.12% | +87,489 | New |
| Baker Ellis Asset Management LLC | 87,122 | $4.34M | 0.84% | −3,645−4.0% | Reduced |
| USS Investment Management Ltd | 85,560 | $4.26M | 0.06% | +11,900+16.2% | Added |
| Siemens Fonds Invest GmbH | 85,507 | $4.26M | 0.43% | −1,208−1.4% | Reduced |
| Swiss Life Asset Management Ltd | 84,647 | $4.22M | 0.07% | −26,106−23.6% | Reduced |
| Meiji Yasuda Asset Management Co Ltd. | 84,596 | $4.22M | 0.21% | −317−0.4% | Reduced |
| MetLife Investment Management | 84,478 | $4.21M | 0.03% | −1,600−1.9% | Reduced |
| Handelsbanken Fonder AB | 84,347 | $4.21M | 0.03% | −402,699−82.7% | Reduced |
| Fifth Third Bancorp | 83,682 | $4.17M | 0.02% | −9,674−10.4% | Reduced |
| Allspring Global Investments Holdings, LLC | 83,267 | $4.15M | 0.01% | −6,302−7.0% | Reduced |
| Arizona State Retirement System | 82,280 | $4.10M | 0.04% | +2,501+3.1% | Added |
| TD Private Client Wealth LLC | 82,015 | $4.09M | 0.19% | −1,668−2.0% | Reduced |
| Renaissance Technologies LLC | 80,600 | $4.02M | 0.01% | −53,900−40.1% | Reduced |
| Moors & Cabot, Inc. | 80,305 | $4.00M | 0.28% | −864−1.1% | Reduced |
| American International Group, Inc. | 80,091 | $3.99M | 0.03% | −2,094−2.5% | Reduced |
| Salem Investment Counselors Inc | 78,848 | $3.98M | 0.17% | −2,925−3.6% | Reduced |
| MML Investors Services, LLC | 79,666 | $3.97M | 0.03% | +5,476+7.4% | Added |
| State of Michigan Retirement System | 79,046 | $3.94M | 0.03% | +400+0.5% | Added |
| Avantax Advisory Services, Inc. | 77,476 | $3.86M | 0.05% | +2,070+2.7% | Added |
| Woodstock Corp | 77,159 | $3.85M | 0.51% | −1,502−1.9% | Reduced |
| Burney Co | 76,800 | $3.83M | 0.19% | −19,834−20.5% | Reduced |
| Hourglass Capital, LLC | 76,750 | $3.83M | 1.35% | +50+0.1% | Added |
| Schonfeld Strategic Advisors LLC | 76,143 | $3.80M | 0.03% | +8,104+11.9% | Added |
| Truist Financial Corp | 74,799 | $3.73M | 0.01% | −23,278−23.7% | Reduced |
| Advisors Asset Management, Inc. | 72,720 | $3.63M | 0.07% | +16,892+30.3% | Added |
| Comerica Bank | 69,244 | $3.62M | 0.03% | −473−0.7% | Reduced |
| ProShare Advisors LLC | 71,932 | $3.59M | 0.01% | +1,750+2.5% | Added |
| Cetera Investment Advisers | 71,758 | $3.58M | 0.03% | +36,254+102.1% | Added |
| Wealthfront Advisers LLC | 69,814 | $3.48M | 0.02% | −2,569−3.5% | Reduced |
| Nia Impact Advisors, LLC | 68,518 | $3.42M | 1.98% | +68,518 | New |
| National Asset Management, Inc. | 66,854 | $3.37M | 0.09% | −6,240−8.5% | Reduced |
| NEIRG Wealth Management, LLC | 67,427 | $3.36M | 0.63% | +7,005+11.6% | Added |
| Oliver Luxxe Assets LLC | 67,233 | $3.35M | 0.93% | 00.0% | Unchanged |
| Public Sector Pension Investment Board | 67,216 | $3.35M | 0.03% | +13,867+26.0% | Added |
| Fjarde Ap-Fonden /Fourth Swedish National Pension Fund | 66,884 | $3.33M | 0.05% | −25,300−27.4% | Reduced |
| Vert Asset Management LLC | 65,669 | $3.27M | 2.91% | +2,565+4.1% | Added |
| Nepsis, Inc. | 65,258 | $3.25M | 1.09% | +741+1.1% | Added |
| Peapack Gladstone Financial Corp | 64,938 | $3.24M | 0.06% | −952−1.4% | Reduced |
| HighTower Advisors, LLC | 64,507 | $3.21M | 0.01% | −4,992−7.2% | Reduced |
| Truvestments Capital LLC | 64,254 | $3.20M | 1.81% | −12,518−16.3% | Reduced |
| American Trust Investment Advisors, LLC | 64,051 | $3.19M | 2.03% | +255+0.4% | Added |