Iron Mountain Inc. Major Shareholders & Ownership History
| Major Shareholder Name | Reporting Date | Shares Held | Market Value | Change in Shares | Ownership |
|---|---|---|---|---|---|
| VANGUARD GROUP INC | 01/29/2026 | 46.63 M | $3.87 B | -1.32% | 15.65% |
| BLACKROCK, INC. | 02/12/2026 | 32.92 M | $2.73 B | 3.82% | 11.05% |
| COHEN & STEERS, INC. | 02/13/2026 | 18.90 M | $1.57 B | 20.03% | 6.39% |
| STATE STREET CORP | 02/13/2026 | 16.89 M | $1.42 B | -1.42% | 5.67% |
| GEODE CAPITAL MANAGEMENT, LLC | 02/09/2026 | 8.29 M | $685.37 M | 1.25% | 2.78% |
| FMR LLC | 02/17/2026 | 7.98 M | $662.30 M | 1.61% | 2.70% |
| NORGES BANK | 02/10/2026 | 4.45 M | $368.89 M | 100.00% | 1.50% |
| DIMENSIONAL FUND ADVISORS LP | 02/12/2026 | 4.43 M | $367.42 M | 1.87% | 1.50% |
| INVESCO LTD. | 02/19/2026 | 4.42 M | $366.42 M | -12.81% | 1.48% |
| PRINCIPAL FINANCIAL GROUP INC | 02/02/2026 | 4.21 M | $349.02 M | 66.50% | 1.42% |
| NORTHERN TRUST CORP | 02/17/2026 | 4.15 M | $344.46 M | 3.00% | 1.41% |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 02/13/2026 | 3.88 M | $321.87 M | 5.61% | 1.31% |
| DAIWA SECURITIES GROUP INC. | 02/11/2026 | 3.65 M | $303.11 M | 15.96% | 1.24% |
| MORGAN STANLEY | 02/13/2026 | 3.60 M | $298.53 M | -0.34% | 1.21% |
| LEGAL & GENERAL GROUP PLC | 02/09/2026 | 3.36 M | $278.42 M | 4.38% | 1.13% |
| CONTOUR ASSET MANAGEMENT LLC | 02/17/2026 | 2.83 M | $234.93 M | -10.54% | 0.96% |
| CENTERSQUARE INVESTMENT MANAGEMENT LLC | 02/12/2026 | 2.63 M | $218.28 M | 4.65% | 0.89% |
| DEUTSCHE BANK AG\ | 02/11/2026 | 2.54 M | $210.86 M | -12.06% | 0.86% |
| PICTET ASSET MANAGEMENT HOLDING SA | 01/29/2026 | 2.30 M | $190.43 M | -6.83% | 0.78% |
| PRUDENTIAL FINANCIAL INC | 02/13/2026 | 2.31 M | $191.65 M | 9.31% | 0.78% |
| CAPITAL WORLD INVESTORS | 02/11/2026 | 2.12 M | $175.62 M | 0.00% | 0.72% |
| NUVEEN, LLC | 02/12/2026 | 2.13 M | $176.51 M | -0.68% | 0.71% |
| JPMORGAN CHASE & CO | 02/11/2026 | 1.93 M | $159.92 M | -6.25% | 0.65% |
| AMERIPRISE FINANCIAL INC | 02/17/2026 | 1.74 M | $142.47 M | 2.25% | 0.59% |
| VONTOBEL HOLDING LTD. | 02/13/2026 | 1.69 M | $140.12 M | 56.63% | 0.57% |
| BANK OF NEW YORK MELLON CORP | 02/10/2026 | 1.69 M | $139.85 M | 1.17% | 0.57% |
| PGGM INVESTMENTS | 02/09/2026 | 1.66 M | $137.46 M | -1.64% | 0.56% |
| DUFF & PHELPS INVESTMENT MANAGEMENT CO | 01/26/2026 | 1.58 M | $131.10 M | -3.75% | 0.53% |
| GOLDMAN SACHS GROUP INC | 03/25/2026 | 1.53 M | $126.52 M | 12.64% | 0.52% |
| BANK OF AMERICA CORP /DE/ | 02/17/2026 | 1.51 M | $125.28 M | 23.00% | 0.51% |
| CBRE INVESTMENT MANAGEMENT LISTED REAL ASSETS LLC | 02/10/2026 | 1.45 M | $120.00 M | 13.95% | 0.49% |
| RUSSELL INVESTMENTS GROUP, LTD. | 02/17/2026 | 1.41 M | $116.63 M | -17.62% | 0.48% |
| AMUNDI | 02/17/2026 | 1.33 M | $110.63 M | 22.89% | 0.45% |
| ROYAL BANK OF CANADA | 02/17/2026 | 1.29 M | $106.66 M | -44.07% | 0.43% |
| DEKABANK DEUTSCHE GIROZENTRALE | 01/28/2026 | 1.12 M | $95.83 M | 0.00% | 0.38% |
| CITADEL ADVISORS LLC | 02/17/2026 | 1.12 M | $92.85 M | 1,726.32% | 0.38% |
| HSBC HOLDINGS PLC | 03/20/2026 | 1.06 M | $87.58 M | 10.95% | 0.36% |
| SEI INVESTMENTS CO | 02/13/2026 | 1.02 M | $85.00 M | 17.39% | 0.35% |
| AQR CAPITAL MANAGEMENT LLC | 02/17/2026 | 923.20 K | $76.58 M | 101.80% | 0.31% |
| SUMITOMO MITSUI TRUST HOLDINGS, INC. | 01/23/2026 | 906.89 K | $75.23 M | -2.98% | 0.31% |
| MITSUBISHI UFJ KOKUSAI ASSET MANAGEMENT CO., LTD. | 02/03/2026 | 839.57 K | $69.89 M | 4.64% | 0.28% |
| SWISS NATIONAL BANK | 02/12/2026 | 809.26 K | $67.13 M | -4.86% | 0.27% |
| POINT72 ASSET MANAGEMENT, L.P. | 02/17/2026 | 790.50 K | $65.57 M | -39.03% | 0.27% |
| UBS GROUP AG | 01/29/2026 | 795.91 K | $66.02 M | -44.59% | 0.27% |
| BARCLAYS PLC | 02/13/2026 | 728.86 K | $60.46 M | -1.49% | 0.24% |
| CIBC PRIVATE WEALTH GROUP, LLC | 02/12/2026 | 677.65 K | $56.21 M | -6.02% | 0.23% |
| WELCH & FORBES LLC | 02/10/2026 | 656.36 K | $54.45 M | -0.40% | 0.22% |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | 02/17/2026 | 656.85 K | $54.49 M | 18.69% | 0.22% |
| LPL FINANCIAL LLC | 02/11/2026 | 634.80 K | $52.66 M | -10.52% | 0.21% |
| WELLS FARGO & COMPANY/MN | 02/13/2026 | 637.27 K | $52.86 M | -0.09% | 0.21% |
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Iron Mountain Inc. institutional Ownership - FAQ's
During the previous two years, 1448 institutional investors and hedge funds held shares of Iron Mountain Inc.. The most heavily invested institutionals were:
PRINCIPAL FINANCIAL GROUP INC: 4.57 M
DIMENSIONAL FUND ADVISORS LP: 4.55 M
Invesco Ltd.: 3.92 M
Legal & General Group Plc: 3.14 M
DEUTSCHE BANK AG\: 3.09 M
CENTERSQUARE INVESTMENT MANAGEMENT LLC: 2.31 M
86.90% of Iron Mountain Inc. stock is owned by institutional investors.
Institutional investors have bought a total of 332.19 M shares in the last 24 months. This purchase volume represents approximately $35.59 B in transactions.