IRON MOUNTAIN INC (IRM) — Institutional Holders, Q2 2026 (page 2)
1,174 institutional investment managers reported a IRM position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $32.4B. Every filer is listed below, ranked by position value, 100 per page; this page shows ranks 101 to 200. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.
IRM 13F holders ranked 101–200 of 1,174
| # | Institution | Shares | Value | % of portfolio | QoQShares vs Q1 2026 |
|---|---|---|---|---|---|
| 101 | STIFEL FINANCIAL#101 · 259,638 sh | 259,638 | $32.8M | 0.03% | +1.7% |
| 102 | STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM#102 · 257,566 sh | 257,566 | $32.5M | 0.05% | -1.9% |
| 103 | Cetera Investment Advisers#103 · 257,097 sh | 257,097 | $32.5M | 0.03% | -1.1% |
| 104 | FEDERATED HERMES#104 · 241,777 sh | 241,777 | $30.5M | 0.04% | +12.9% |
| 105 | Americana Partners#105 · 241,330 sh | 241,330 | $30.5M | 0.69% | -1.2% |
| 106 | SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT#106 · 235,567 sh | 235,567 | $29.8M | 0.52% | New |
| 107 | Retirement Systems of Alabama#107 · 227,483 sh | 227,483 | $28.7M | 0.09% | -0.1% |
| 108 | BLAIR WILLIAM#108 · 224,376 sh | 224,376 | $28.3M | 0.07% | -0.4% |
| 109 | NEW YORK STATE TEACHERS RETIREMENT SYSTEM#109 · 222,876 sh | 222,876 | $28.2M | — | -2.2% |
| 110 | Korea Investment#110 · 218,594 sh | 218,594 | $27.6M | 0.05% | +82.1% |
| 111 | Corient Private Wealth#111 · 216,659 sh | 216,659 | $27.4M | 0.04% | +2.0% |
| 112 | REAVES W H#112 · 212,533 sh | 212,533 | $26.8M | 0.41% | -0.5% |
| 113 | Focus Partners Wealth#113 · 211,460 sh | 211,460 | $26.7M | 0.03% | +1.9% |
| 114 | CAPTRUST FINANCIAL ADVISORS#114 · 207,991 sh | 207,991 | $26.3M | 0.04% | -1.7% |
| 115 | ENVESTNET ASSET MANAGEMENT#115 · 204,397 sh | 204,397 | $25.8M | <0.01% | -9.1% |
| 116 | KLP KAPITALFORVALTNING AS#116 · 201,716 sh | 201,716 | $25.6M | 0.08% | +6.2% |
| 117 | Zurcher Kantonalbank (Zurich Cantonalbank)#117 · 202,404 sh | 202,404 | $25.6M | 0.05% | +1.8% |
| 118 | DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt#118 · 196,364 sh | 196,364 | $24.8M | 0.02% | -21.9% |
| 119 | GW&K Investment Management#119 · 196,280 sh | 196,280 | $24.8M | 0.19% | New |
| 120 | NATIONAL BANK OF CANADA#120 · 191,656 sh | 191,656 | $24.2M | 0.02% | +101.5% |
| 121 | Handelsbanken Fonder AB#121 · 189,498 sh | 189,498 | $23.9M | 0.07% | +24.4% |
| 122 | NEW YORK STATE COMMON RETIREMENT FUND#122 · 182,874 sh | 182,874 | $23.1M | 0.03% | -0.7% |
| 123 | Resona Asset Management ,Ltd.#123 · 178,163 sh | 178,163 | $23.0M | 0.11% | -1.3% |
| 124 | APG Asset Management N.V.#124 · 207,010 sh | 207,010 | $22.9M | 0.06% | +37.2% |
| 125 | State of Alaska, Department of Revenue#125 · 176,638 sh | 176,638 | $22.3M | — | -0.6% |
| 126 | NATIXIS ADVISORS#126 · 173,833 sh | 173,833 | $22.0M | 0.02% | +4.6% |
| 127 | UNITED CAPITAL FINANCIAL ADVISORS#127 · 172,265 sh | 172,265 | $21.8M | 0.12% | -1.9% |
| 128 | MANUFACTURERS LIFE INSURANCE COMPANY, THE#128 · 166,497 sh | 166,497 | $21.0M | 0.02% | -4.0% |
| 129 | THRIVENT FINANCIAL FOR LUTHERANS#129 · 165,535 sh | 165,535 | $20.9M | 0.04% | +55.4% |
| 130 | Pacer Advisors#130 · 164,494 sh | 164,494 | $20.8M | 0.05% | -81.1% |
| 131 | Ensign Peak Advisors#131 · 163,841 sh | 163,841 | $20.7M | 0.03% | -44.9% |
| 132 | Moran Wealth Management#132 · 163,458 sh | 163,458 | $20.6M | — | -5.7% |
| 133 | TECTONIC ADVISORS#133 · 162,401 sh | 162,401 | $20.5M | — | -2.1% |
| 134 | DANSKE BANK A/S#134 · 160,962 sh | 160,962 | $20.3M | 0.04% | -1.9% |
| 135 | STATE OF WISCONSIN INVESTMENT BOARD#135 · 158,437 sh | 158,437 | $20.0M | 0.04% | -10.2% |
| 136 | COMMONWEALTH EQUITY SERVICES#136 · 157,856 sh | 157,856 | $19.9M | 0.03% | +0.8% |
| 137 | MILLENNIUM MANAGEMENT#137 · 157,057 sh | 157,057 | $19.8M | <0.01% | -58.1% |
| 138 | Vert Asset Management#138 · 154,450 sh | 154,450 | $19.5M | 5.34% | +5.5% |
| 139 | Mariner#139 · 146,985 sh | 146,985 | $18.6M | 0.02% | +13.9% |
| 140 | Brookstone Capital Management#140 · 146,595 sh | 146,595 | $18.5M | — | -22.4% |
| 141 | BNP Paribas Asset Management Holding S.A.#141 · 144,894 sh | 144,894 | $18.3M | 0.02% | +13.2% |
| 142 | FIL Ltd#142 · 144,810 sh | 144,810 | $18.3M | 0.01% | -3.9% |
| 143 | PUBLIC EMPLOYEES RETIREMENT ASSOCIATION OF COLORADO#143 · 144,551 sh | 144,551 | $18.3M | 0.06% | +410.1% |
| 144 | Chevy Chase#144 · 143,663 sh | 143,663 | $18.1M | 0.05% | -1.4% |
| 145 | Mitsubishi UFJ & Banking#145 · 141,549 sh | 141,549 | $17.9M | 0.04% | +20.4% |
| 146 | FRANKLIN RESOURCES#146 · 141,308 sh | 141,308 | $17.8M | <0.01% | -4.5% |
| 147 | ROYAL LONDON ASSET MANAGEMENT LTD#147 · 141,105 sh | 141,105 | $17.8M | 0.03% | -1.1% |
| 148 | Creative Planning#148 · 139,922 sh | 139,922 | $17.7M | 0.01% | +6.3% |
| 149 | OF VIRGINIA#149 · 139,708 sh | 139,708 | $17.6M | — | -1.3% |
| 150 | NATIXIS#150 · 138,282 sh | 138,282 | $17.5M | 0.07% | +1603.0% |
| 151 | Gillson Capital#151 · 137,932 sh | 137,932 | $17.4M | 1.03% | New |
| 152 | Sanctuary Advisors#152 · 136,968 sh | 136,968 | $17.3M | 0.08% | -0.8% |
| 153 | UNITED BANK#153 · 134,721 sh | 134,721 | $17.0M | 2.00% | -4.9% |
| 154 | TORONTO DOMINION BANK#154 · 133,884 sh | 133,884 | $16.9M | 0.02% | +3.4% |
| 155 | INTECH INVESTMENT MANAGEMENT#155 · 133,015 sh | 133,015 | $16.8M | 0.15% | +497.3% |
| 156 | Tredje AP-fonden#156 · 132,083 sh | 132,083 | $16.7M | 0.08% | +10.2% |
| 157 | Sargent Investment Group#157 · 131,883 sh | 131,883 | $16.7M | 2.00% | -2.0% |
| 158 | AR ASSET MANAGEMENT#158 · 130,600 sh | 130,600 | $16.5M | 3.02% | 0.0% |
| 159 | Mutual Advisors#159 · 128,782 sh | 128,782 | $16.3M | 0.31% | -0.2% |
| 160 | Treasurer of the State of North Carolina#160 · 125,912 sh | 125,912 | $15.9M | 0.04% | +0.2% |
| 161 | BOOTHBAY FUND MANAGEMENT#161 · 125,307 sh | 125,307 | $15.8M | 0.21% | -11.4% |
| 162 | Point72 Asset Management, L.P.#162 · 123,262 sh | 123,262 | $15.6M | 0.02% | -67.4% |
| 163 | TCW GROUP#163 · 120,984 sh | 120,984 | $15.3M | 0.10% | -10.6% |
| 164 | Eurizon Capital SGR S.p.A.#164 · 120,509 sh | 120,509 | $15.2M | 0.04% | +34.5% |
| 165 | Cambridge Investment Research Advisors#165 · 120,176 sh | 120,176 | $15.2M | 0.03% | -3.2% |
| 166 | Nykredit A/S#166 · 118,721 sh | 118,721 | $15.0M | 0.05% | — |
| 167 | STOREBRAND ASSET MANAGEMENT AS#167 · 117,204 sh | 117,204 | $14.8M | 0.04% | -2.0% |
| 168 | OMERS ADMINISTRATION#168 · 116,430 sh | 116,430 | $14.7M | 0.09% | +771.4% |
| 169 | IFM Investors Pty Ltd#169 · 113,862 sh | 113,862 | $14.4M | — | +7.8% |
| 170 | O'Neil Global Advisors#170 · 113,164 sh | 113,164 | $14.3M | 3.20% | New |
| 171 | Sumitomo Mitsui DS Asset Management Company, Ltd#171 · 112,827 sh | 112,827 | $14.3M | — | +2.8% |
| 172 | FIRST ADVISORS#172 · 112,189 sh | 112,189 | $14.2M | <0.01% | +101.4% |
| 173 | Nippon Life Global Investors Americas#173 · 111,470 sh | 111,470 | $14.2M | 0.56% | -1.2% |
| 174 | CIBC WORLD MARKET#174 · 112,049 sh | 112,049 | $14.2M | 0.02% | -33.5% |
| 175 | TD ASSET MANAGEMENT#175 · 111,713 sh | 111,713 | $14.1M | 0.01% | -38.4% |
| 176 | NEOS Investment Management#176 · 110,692 sh | 110,692 | $14.0M | 0.05% | +9.5% |
| 177 | D. E. Shaw#177 · 109,823 sh | 109,823 | $13.9M | <0.01% | New |
| 178 | PANAGORA ASSET MANAGEMENT#178 · 109,416 sh | 109,416 | $13.8M | 0.04% | +3004.9% |
| 179 | MERCER GLOBAL ADVISORS#179 · 106,912 sh | 106,912 | $13.5M | 0.02% | +15.7% |
| 180 | HighTower Advisors#180 · 105,399 sh | 105,399 | $13.3M | 0.01% | -0.2% |
| 181 | Janney Montgomery Scott#181 · 105,090 sh | 105,090 | $13.3M | 0.03% | +18.9% |
| 182 | OSAIC#182 · 102,853 sh | 102,853 | $13.0M | 0.02% | -6.9% |
| 183 | ADAMS DIVERSIFIED EQUITY FUND#183 · 102,900 sh | 102,900 | $13.0M | — | +27.4% |
| 184 | Kestra Advisory Services#184 · 100,099 sh | 100,099 | $12.6M | 0.04% | -1.2% |
| 185 | Uniplan Investment Counsel#185 · 23,874 sh | 23,874 | $12.4M | 1.16% | New |
| 186 | IEQ CAPITAL#186 · 97,425 sh | 97,425 | $12.3M | 0.06% | -4.4% |
| 187 | State of Tennessee, Treasury Department#187 · 96,437 sh | 96,437 | $12.2M | 0.04% | -14.1% |
| 188 | State of New Jersey Common Pension Fund D#188 · 96,274 sh | 96,274 | $12.2M | 0.04% | -3.2% |
| 189 | Cerity Partners#189 · 94,727 sh | 94,727 | $12.0M | 0.01% | +5.8% |
| 190 | Lansforsakringar Fondforvaltning AB (publ)#190 · 93,178 sh | 93,178 | $11.8M | 0.05% | -7.1% |
| 191 | SCHRODER INVESTMENT MANAGEMENT GROUP#191 · 90,524 sh | 90,524 | $11.4M | <0.01% | +724.7% |
| 192 | KBC Group NV#192 · 86,949 sh | 86,949 | $11.0M | — | +8.2% |
| 193 | NISA INVESTMENT ADVISORS#193 · 86,069 sh | 86,069 | $10.9M | — | -15.2% |
| 194 | VAN ECK ASSOCIATES#194 · 86,504 sh | 86,504 | $10.9M | <0.01% | +3.5% |
| 195 | NISSAY ASSET MANAGEMENT /JAPAN#195 · 86,438 sh | 86,438 | $10.9M | 0.05% | +2.0% |
| 196 | Arizona State Retirement System#196 · 85,291 sh | 85,291 | $10.8M | 0.05% | +6.1% |
| 197 | PUBLIC SECTOR PENSION INVESTMENT BOARD#197 · 84,934 sh | 84,934 | $10.7M | 0.03% | +0.9% |
| 198 | Czech National Bank#198 · 84,687 sh | 84,687 | $10.7M | — | +5.1% |
| 199 | Intrinsic Edge Capital Management#199 · 84,515 sh | 84,515 | $10.7M | 1.10% | -30.6% |
| 200 | FJARDE AP-FONDEN /FOURTH SWEDISH NATIONAL PENSION FUND#200 · 83,421 sh | 83,421 | $10.5M | — | +4.4% |
Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.