IRON MOUNTAIN INC - IRM
Sector:
Real Estate
· Industry:
Real Estate Investment Trusts
Website:
No information yet
· Social:
No information yet
Company profile
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Quarter snapshot
Latest / Compare
Q1 2026
· Q4 2025
Value (USD)
Total reported value ($000)
$30.52B
QoQ value delta ($000)
+$8.992B
(+41.77%)
Implied price effect (QoQ)
+19.12%
Shares
Total shares
308,803,959
QoQ shares delta
+49,344,056
(+19.02%)
Total shares held by funds (by quarter)
Market chart (IRM)
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Top holders (Q1 2026)
Top 25 only
Full list
Partial Q1 2026 data: 1085 holders have filed so far. Prior holders are carried forward until their next 13F confirms a change.
| Manager | Value ($000) | Shares | % of 13F |
|---|---|---|---|
| VANGUARD GROUP INC | 3,867,749 | 46,627,483 | 0.06% |
| BlackRock, Inc. | 3,372,801 | 33,021,354 | 0.06% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 2,555,088 | 25,015,557 | 0.14% |
| VANGUARD CAPITAL MANAGEMENT LLC | 1,916,032 | 18,758,889 | 0.05% |
| STATE STREET CORP | 1,807,660 | 17,551,633 | 0.06% |
| COHEN & STEERS, INC. | 1,651,537 | 16,169,341 | 2.87% |
| GEODE CAPITAL MANAGEMENT, LLC | 863,699 | 8,486,127 | 0.05% |
| FMR LLC | 764,456 | 7,484,398 | 0.04% |
| MORGAN STANLEY | 475,180 | 4,652,247 | 0.03% |
| PRINCIPAL FINANCIAL GROUP INC | 466,382 | 4,566,093 | 0.25% |
| DIMENSIONAL FUND ADVISORS LP | 464,930 | 4,552,286 | 0.1% |
| NORTHERN TRUST CORP | 423,930 | 4,150,486 | 0.06% |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 409,888 | 4,013,007 | 0.06% |
| Invesco Ltd. | 400,544 | 3,921,521 | 0.06% |
| NORGES BANK | 368,889 | 4,447,133 | 0.04% |
| Legal & General Group Plc | 320,216 | 3,135,074 | 0.07% |
| Daiwa Securities Group Inc. | 317,393 | 3,107,440 | 0.91% |
| DEUTSCHE BANK AG\ | 315,825 | 3,092,084 | 0.1% |
| PRUDENTIAL FINANCIAL INC | 246,776 | 2,416,063 | 0.3% |
| CENTERSQUARE INVESTMENT MANAGEMENT LLC | 235,947 | 2,310,045 | 2.44% |
| GOLDMAN SACHS GROUP INC | 226,410 | 2,216,672 | 0.03% |
| Vontobel Holding Ltd. | 216,217 | 2,116,877 | 0.74% |
| Nuveen, LLC | 211,267 | 2,068,408 | 0.06% |
| JPMORGAN CHASE & CO | 207,239 | 2,123,358 | 0.01% |
| Capital World Investors | 190,712 | 1,867,169 | 0.03% |