Iron Mountain Inc. Major Shareholders & Ownership History
| Major Shareholder Name | Reporting Date | Shares Held | Market Value | Change in Shares | Ownership |
|---|---|---|---|---|---|
| BLACKROCK, INC. | 05/13/2026 | 33.02 M | $3.37 B | 0.31% | 11.08% |
| 05/08/2026 | 25.02 M | $2.56 B | 100.00% | 8.39% | |
| 05/15/2026 | 18.76 M | $1.92 B | 100.00% | 6.29% | |
| STATE STREET CORP | 05/15/2026 | 17.55 M | $1.81 B | 3.92% | 5.89% |
| COHEN & STEERS, INC. | 05/15/2026 | 16.17 M | $1.65 B | -14.46% | 5.43% |
| GEODE CAPITAL MANAGEMENT, LLC | 05/15/2026 | 8.49 M | $863.70 M | 2.33% | 2.85% |
| FMR LLC | 05/15/2026 | 7.48 M | $764.46 M | -6.26% | 2.51% |
| MORGAN STANLEY | 05/15/2026 | 4.65 M | $475.18 M | 29.27% | 1.56% |
| PRINCIPAL FINANCIAL GROUP INC | 05/04/2026 | 4.57 M | $466.38 M | 8.52% | 1.53% |
| DIMENSIONAL FUND ADVISORS LP | 05/07/2026 | 4.55 M | $464.93 M | 2.78% | 1.53% |
| NORTHERN TRUST CORP | 05/14/2026 | 4.15 M | $423.93 M | -0.05% | 1.39% |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 05/15/2026 | 4.01 M | $409.89 M | 3.42% | 1.35% |
| INVESCO LTD. | 05/12/2026 | 3.92 M | $400.54 M | -11.22% | 1.32% |
| LEGAL & GENERAL GROUP PLC | 05/08/2026 | 3.14 M | $320.22 M | -6.59% | 1.05% |
| DAIWA SECURITIES GROUP INC. | 05/13/2026 | 3.11 M | $317.39 M | -14.96% | 1.04% |
| DEUTSCHE BANK AG\ | 05/06/2026 | 3.09 M | $315.83 M | 21.64% | 1.04% |
| PRUDENTIAL FINANCIAL INC | 05/13/2026 | 2.42 M | $246.78 M | 4.57% | 0.81% |
| CENTERSQUARE INVESTMENT MANAGEMENT LLC | 05/08/2026 | 2.31 M | $235.95 M | -12.21% | 0.78% |
| GOLDMAN SACHS GROUP INC | 05/15/2026 | 2.22 M | $226.41 M | 45.33% | 0.74% |
| JPMORGAN CHASE & CO | 05/13/2026 | 2.12 M | $207.24 M | 10.14% | 0.71% |
| VONTOBEL HOLDING LTD. | 05/08/2026 | 2.12 M | $216.22 M | 25.31% | 0.71% |
| NUVEEN, LLC | 04/30/2026 | 2.07 M | $211.27 M | -2.80% | 0.69% |
| CAPITAL WORLD INVESTORS | 05/13/2026 | 1.87 M | $190.71 M | -11.81% | 0.63% |
| AMERIPRISE FINANCIAL INC | 05/15/2026 | 1.85 M | $189.08 M | 6.11% | 0.62% |
| AQR CAPITAL MANAGEMENT LLC | 05/15/2026 | 1.85 M | $183.07 M | 99.97% | 0.62% |
| SELECT EQUITY GROUP, L.P. | 05/15/2026 | 1.78 M | $181.76 M | 100.00% | 0.60% |
| VANGUARD FIDUCIARY TRUST CO | 05/08/2026 | 1.65 M | $168.83 M | 100.00% | 0.55% |
| BANK OF NEW YORK MELLON CORP | 05/05/2026 | 1.62 M | $165.96 M | -3.63% | 0.55% |
| DUFF & PHELPS INVESTMENT MANAGEMENT CO | 04/28/2026 | 1.58 M | $160.90 M | -0.32% | 0.53% |
| RUSSELL INVESTMENTS GROUP, LTD. | 05/08/2026 | 1.46 M | $148.41 M | 3.51% | 0.49% |
| CONTOUR ASSET MANAGEMENT LLC | 05/15/2026 | 1.44 M | $147.57 M | -48.99% | 0.48% |
| ROYAL BANK OF CANADA | 05/15/2026 | 1.41 M | $144.09 M | 9.71% | 0.47% |
| BANK OF AMERICA CORP /DE/ | 05/18/2026 | 1.40 M | $142.93 M | -7.35% | 0.47% |
| PGGM INVESTMENTS | 05/15/2026 | 1.37 M | $139.93 M | -17.33% | 0.46% |
| HSBC HOLDINGS PLC | 04/30/2026 | 1.27 M | $130.01 M | 20.56% | 0.43% |
| CBRE INVESTMENT MANAGEMENT LISTED REAL ASSETS LLC | 05/14/2026 | 1.24 M | $126.44 M | -14.43% | 0.42% |
| DEKABANK DEUTSCHE GIROZENTRALE | 05/07/2026 | 1.12 M | $116.59 M | 0.00% | 0.38% |
| AMUNDI | 05/18/2026 | 1.09 M | $111.49 M | -18.15% | 0.37% |
| SEI INVESTMENTS CO | 05/13/2026 | 974.79 K | $99.57 M | -4.87% | 0.33% |
| SUMITOMO MITSUI TRUST HOLDINGS, INC. | 04/30/2026 | 933.72 K | $95.37 M | 2.96% | 0.31% |
| MITSUBISHI UFJ KOKUSAI ASSET MANAGEMENT CO., LTD. | 05/12/2026 | 908.37 K | $92.78 M | 8.19% | 0.30% |
| SWISS NATIONAL BANK | 05/07/2026 | 867.46 K | $88.60 M | 7.19% | 0.29% |
| PICTET ASSET MANAGEMENT HOLDING SA | 04/22/2026 | 864.74 K | $88.25 M | -62.34% | 0.29% |
| 05/12/2026 | 828.79 K | $84.60 M | 100.00% | 0.28% | |
| AMERICAN CENTURY COMPANIES INC | 05/15/2026 | 815.79 K | $83.33 M | 106.06% | 0.27% |
| UBS GROUP AG | 05/05/2026 | 801.43 K | $81.86 M | 0.69% | 0.27% |
| JANE STREET GROUP, LLC | 05/12/2026 | 707.44 K | $72.26 M | 100.00% | 0.24% |
| APG ASSET MANAGEMENT US INC. | 05/13/2026 | 703.91 K | $71.06 M | 20.91% | 0.24% |
| BARCLAYS PLC | 05/15/2026 | 673.77 K | $68.82 M | -7.56% | 0.23% |
| WELLS FARGO & COMPANY/MN | 05/11/2026 | 658.45 K | $67.25 M | 3.32% | 0.22% |
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Iron Mountain Inc. institutional Ownership - FAQ's
During the previous two years, 1420 institutional investors and hedge funds held shares of Iron Mountain Inc.. The most heavily invested institutionals were:
BlackRock, Inc.: 33.02 M
STATE STREET CORP: 17.55 M
COHEN & STEERS, INC.: 16.17 M
GEODE CAPITAL MANAGEMENT, LLC: 8.49 M
FMR LLC: 7.48 M
MORGAN STANLEY: 4.65 M
84.80% of Iron Mountain Inc. stock is owned by institutional investors.
Institutional investors have bought a total of 330.71 M shares in the last 24 months. This purchase volume represents approximately $35.43 B in transactions.