IRON MOUNTAIN INC (IRM) — Institutional Holders, Q2 2026 (page 3)
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 201 to 300. 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 201–300 of 1,174
| # | Institution | Shares | Value | % of portfolio | QoQShares vs Q1 2026 |
|---|---|---|---|---|---|
| 201 | USS Investment Management Ltd#201 · 83,255 sh | 83,255 | $10.5M | 0.04% | +24.7% |
| 202 | MML INVESTORS SERVICES#202 · 83,001 sh | 83,001 | $10.5M | 0.02% | +22.5% |
| 203 | Andra AP-fonden#203 · 81,952 sh | 81,952 | $10.4M | 0.12% | +159.7% |
| 204 | M&T BANK#204 · 81,760 sh | 81,760 | $10.3M | 0.03% | +0.3% |
| 205 | BANK OF NOVA SCOTIA#205 · 79,661 sh | 79,661 | $10.1M | 0.02% | -20.2% |
| 206 | WILEY BROS.-AINTREE CAPITAL#206 · 78,284 sh | 78,284 | $9.9M | 0.04% | +6.7% |
| 207 | SALEM INVESTMENT COUNSELORS#207 · 77,154 sh | 77,154 | $9.7M | — | -1.2% |
| 208 | CREDIT AGRICOLE S A#208 · 76,947 sh | 76,947 | $9.7M | 0.02% | -23.8% |
| 209 | MetLife Investment Management#209 · 76,417 sh | 76,417 | $9.7M | 0.04% | -1.3% |
| 210 | STATE TREASURER STATE OF MICHIGAN#210 · 76,146 sh | 76,146 | $9.6M | — | -1.4% |
| 211 | SEB Asset Management AB#211 · 75,873 sh | 75,873 | $9.6M | 0.04% | +9.6% |
| 212 | TUDOR INVESTMENT ET AL#212 · 75,389 sh | 75,389 | $9.5M | 0.01% | +102.6% |
| 213 | Azimuth Capital Investment Management#213 · 75,180 sh | 75,180 | $9.5M | 0.32% | -0.1% |
| 214 | Private Advisor Group#214 · 75,127 sh | 75,127 | $9.5M | 0.04% | -11.9% |
| 215 | NORDEA INVESTMENT MANAGEMENT AB#215 · 75,637 sh | 75,637 | $9.5M | <0.01% | +3.7% |
| 216 | Allworth Financial#216 · 74,559 sh | 74,559 | $9.4M | 0.04% | -2.3% |
| 217 | CIBC Asset Management#217 · 71,468 sh | 71,468 | $9.0M | 0.02% | -0.7% |
| 218 | QRG CAPITAL MANAGEMENT#218 · 71,225 sh | 71,225 | $9.0M | 0.07% | +9.7% |
| 219 | Wealthfront Advisers#219 · 70,478 sh | 70,478 | $8.9M | 0.02% | +1.0% |
| 220 | Chicago Capital#220 · 69,881 sh | 69,881 | $8.8M | — | -16.8% |
| 221 | UniSuper Management Pty Ltd#221 · 69,636 sh | 69,636 | $8.8M | — | -24.2% |
| 222 | Swiss Life Asset Management Ltd#222 · 69,555 sh | 69,555 | $8.8M | 0.04% | +14.8% |
| 223 | PNC FINANCIAL SERVICES GROUP#223 · 68,906 sh | 68,906 | $8.7M | <0.01% | +0.5% |
| 224 | Mirae Asset Global Investments , Ltd.#224 · 68,777 sh | 68,777 | $8.7M | 0.01% | +2.2% |
| 225 | PensionDanmark Pensionsforsikringsaktieselskab#225 · 68,465 sh | 68,465 | $8.6M | — | +12.2% |
| 226 | Varma Mutual Pension Insurance#226 · 67,938 sh | 67,938 | $8.6M | 0.05% | -21.9% |
| 227 | DnB Asset Management AS#227 · 67,481 sh | 67,481 | $8.5M | 0.02% | -26.0% |
| 228 | NORTHWESTERN MUTUAL WEALTH MANAGEMENT#228 · 67,203 sh | 67,203 | $8.5M | <0.01% | +0.8% |
| 229 | LEE DANNER & BASS#229 · 66,834 sh | 66,834 | $8.4M | 0.49% | -0.5% |
| 230 | XPONANCE#230 · 66,624 sh | 66,624 | $8.4M | 0.05% | +19.0% |
| 231 | HOURGLASS CAPITAL#231 · 66,050 sh | 66,050 | $8.3M | — | -5.2% |
| 232 | TWO SIGMA INVESTMENTS#232 · 65,892 sh | 65,892 | $8.3M | <0.01% | -63.2% |
| 233 | OVERSEA-CHINESE BANKING Ltd#233 · 65,390 sh | 65,390 | $8.3M | 0.18% | -29.3% |
| 234 | PFA Pension, Forsikringsaktieselskab#234 · 65,111 sh | 65,111 | $8.2M | 0.02% | +2.2% |
| 235 | WOODSTOCK#235 · 65,102 sh | 65,102 | $8.2M | — | -0.6% |
| 236 | Vestcor#236 · 64,949 sh | 64,949 | $8.2M | 0.20% | +0.7% |
| 237 | Woodline Partners#237 · 64,861 sh | 64,861 | $8.2M | 0.03% | +12.1% |
| 238 | Walleye Capital#238 · 62,613 sh | 62,613 | $7.9M | 0.03% | -47.8% |
| 239 | INTACT INVESTMENT MANAGEMENT#239 · 61,700 sh | 61,700 | $7.8M | 0.22% | -13.8% |
| 240 | BAROMETER CAPITAL MANAGEMENT#240 · 61,400 sh | 61,400 | $7.8M | 2.16% | New |
| 241 | THOMPSON SIEGEL & WALMSLEY#241 · 61,100 sh | 61,100 | $7.7M | 0.14% | -1.6% |
| 242 | Federation des caisses Desjardins du Quebec#242 · 60,455 sh | 60,455 | $7.6M | 0.02% | +10.1% |
| 243 | Susquehanna Portfolio Strategies#243 · 59,764 sh | 59,764 | $7.5M | 0.12% | +156.7% |
| 244 | FORESIGHT CAPITAL MANAGEMENT ADVISORS#244 · 59,644 sh | 59,644 | $7.5M | — | -12.7% |
| 245 | VOYA INVESTMENT MANAGEMENT#245 · 58,470 sh | 58,470 | $7.4M | <0.01% | +0.4% |
| 246 | Raiffeisen Bank International AG#246 · 54,892 sh | 54,892 | $7.1M | 0.08% | -37.4% |
| 247 | ProShare Advisors#247 · 56,341 sh | 56,341 | $7.1M | 0.01% | +3.3% |
| 248 | Hennion & Walsh Asset Management#248 · 56,304 sh | 56,304 | $7.1M | — | +10.3% |
| 249 | NewEdge Advisors#249 · 56,273 sh | 56,273 | $7.1M | 0.02% | New |
| 250 | MIROVA#250 · 56,000 sh | 56,000 | $7.1M | 0.26% | -32.6% |
| 251 | PEAPACK GLADSTONE FINANCIAL#251 · 55,863 sh | 55,863 | $7.1M | 0.08% | -2.6% |
| 252 | Allspring Global Investments#252 · 56,671 sh | 56,671 | $6.9M | 0.01% | +0.4% |
| 253 | WEALTH ENHANCEMENT ADVISORY SERVICES#253 · 61,836 sh | 61,836 | $6.9M | — | +15.8% |
| 254 | Advisors Asset Management#254 · 54,419 sh | 54,419 | $6.9M | 0.10% | +8.0% |
| 255 | PINEBRIDGE INVESTMENTS#255 · 53,335 sh | 53,335 | $6.7M | 0.06% | +35.1% |
| 256 | SHELTON CAPITAL MANAGEMENT#256 · 52,840 sh | 52,840 | $6.7M | 0.12% | New |
| 257 | Candriam S.C.A.#257 · 52,275 sh | 52,275 | $6.6M | 0.03% | -2.9% |
| 258 | Werlinich Asset Management#258 · 51,982 sh | 51,982 | $6.6M | — | 0.0% |
| 259 | New Age Alpha Advisors#259 · 51,605 sh | 51,605 | $6.5M | 0.28% | 0.0% |
| 260 | AMALGAMATED BANK#260 · 51,190 sh | 51,190 | $6.5M | — | -3.9% |
| 261 | Gotham Asset Management#261 · 51,161 sh | 51,161 | $6.5M | 0.01% | +28.8% |
| 262 | VAN LANSCHOT KEMPEN INVESTMENT MANAGEMENT N.V.#262 · 50,585 sh | 50,585 | $6.4M | 0.05% | +0.2% |
| 263 | Rakuten Investment Management#263 · 48,661 sh | 48,661 | $6.3M | 0.02% | +10.9% |
| 264 | Vanguard Personalized Indexing Management#264 · 49,684 sh | 49,684 | $6.3M | 0.05% | +0.4% |
| 265 | NIA IMPACT ADVISORS#265 · 49,661 sh | 49,661 | $6.3M | 2.60% | -0.4% |
| 266 | MACKENZIE FINANCIAL#266 · 49,443 sh | 49,443 | $6.2M | <0.01% | +38.9% |
| 267 | Ethic#267 · 49,180 sh | 49,180 | $6.2M | 0.08% | +7.1% |
| 268 | JONES FINANCIAL COMPANIES LLLP#268 · 45,566 sh | 45,566 | $6.0M | <0.01% | +2.3% |
| 269 | Baird Financial Group#269 · 47,658 sh | 47,658 | $6.0M | <0.01% | +11.6% |
| 270 | RB Capital Management#270 · 46,766 sh | 46,766 | $5.9M | 1.15% | -1.3% |
| 271 | Fideuram Asset Management (Ireland) dac#271 · 43,870 sh | 43,870 | $5.7M | 0.11% | +51.3% |
| 272 | Utah Retirement Systems#272 · 44,878 sh | 44,878 | $5.7M | 0.05% | -5.9% |
| 273 | BRITISH COLUMBIA INVESTMENT MANAGEMENT#273 · 44,611 sh | 44,611 | $5.6M | 0.04% | +9.5% |
| 274 | NEW YORK LIFE INVESTMENT MANAGEMENT#274 · 44,375 sh | 44,375 | $5.6M | 0.04% | +0.4% |
| 275 | Police & Firemen's Retirement System of New Jersey#275 · 44,283 sh | 44,283 | $5.6M | 0.04% | -1.9% |
| 276 | Ranch Capital Advisors#276 · 42,611 sh | 42,611 | $5.4M | 1.71% | +8.6% |
| 277 | Steward Partners Investment Advisory#277 · 42,548 sh | 42,548 | $5.4M | 0.03% | -5.0% |
| 278 | Pensionfund PDN#278 · 42,500 sh | 42,500 | $5.4M | — | 0.0% |
| 279 | Cinctive Capital Management#279 · 42,348 sh | 42,348 | $5.3M | 0.20% | New |
| 280 | Moors & Cabot#280 · 41,490 sh | 41,490 | $5.2M | 0.20% | +0.5% |
| 281 | HRT FINANCIAL#281 · 41,293 sh | 41,293 | $5.2M | 0.01% | -67.8% |
| 282 | HOLDERNESS INVESTMENTS#282 · 40,621 sh | 40,621 | $5.1M | 0.86% | +0.7% |
| 283 | FIRST NATIONAL#283 · 39,708 sh | 39,708 | $5.0M | 0.17% | -21.6% |
| 284 | Schonfeld Strategic Advisors#284 · 39,438 sh | 39,438 | $5.0M | 0.02% | -84.2% |
| 285 | WealthTrust Axiom#285 · 39,223 sh | 39,223 | $5.0M | 1.11% | -0.4% |
| 286 | D.A. DAVIDSON#286 · 38,708 sh | 38,708 | $4.9M | 0.03% | +0.6% |
| 287 | SPIRIT OF AMERICA MANAGEMENT#287 · 38,650 sh | 38,650 | $4.9M | — | +0.5% |
| 288 | Pathstone#288 · 38,410 sh | 38,410 | $4.9M | 0.01% | +6.1% |
| 289 | YOUSIF CAPITAL MANAGEMENT#289 · 38,277 sh | 38,277 | $4.8M | — | -4.1% |
| 290 | MIZUHO SECURITIES USA#290 · 41,178 sh | 41,178 | $4.8M | 0.05% | +130.2% |
| 291 | Waverly Advisors#291 · 37,733 sh | 37,733 | $4.8M | 0.03% | +4.8% |
| 292 | Toroso Investments#292 · 37,168 sh | 37,168 | $4.7M | <0.01% | +53.2% |
| 293 | Rafferty Asset Management#293 · 37,029 sh | 37,029 | $4.7M | 0.01% | +27.2% |
| 294 | OREGON PUBLIC EMPLOYEES RETIREMENT FUND#294 · 36,589 sh | 36,589 | $4.6M | 0.05% | +8.0% |
| 295 | ING GROEP NV#295 · 36,581 sh | 36,581 | $4.6M | 0.02% | +0.8% |
| 296 | O'SHAUGHNESSY ASSET MANAGEMENT#296 · 35,776 sh | 35,776 | $4.5M | 0.02% | -21.5% |
| 297 | American Investment Advisors#297 · 34,838 sh | 34,838 | $4.4M | 2.17% | -6.2% |
| 298 | Trinity Legacy Partners#298 · 36,011 sh | 36,011 | $4.4M | 0.88% | -7.3% |
| 299 | Venture Visionary Partners#299 · 34,434 sh | 34,434 | $4.3M | — | -18.4% |
| 300 | B. Metzler seel. Sohn & AG#300 · 34,219 sh | 34,219 | $4.3M | 0.04% | +23.0% |
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.