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Iron Mountain Inc

Institutional holders · 13F as of Jun 30, 2026

1,024 holders

HolderValue ↓Shares% of shares
BlackRock, Inc.$4.24B33,570,91011.28%
VANGUARD GROUP INC$3.87B46,627,48315.66%
STATE STREET CORPORATION$2.24B17,634,0445.92%
GEODE CAPITAL MANAGEMENT, LLC$863.70M8,486,1272.85%
FMR LLC$662.30M7,984,3042.68%
Principal Financial Group Inc$466.38M4,566,0931.53%
DEUTSCHE BANK AG$385.13M3,049,0791.02%
Norges Bank$368.89M4,447,1331.49%
Dimensional Fund Advisors LP$367.42M4,429,3591.49%
Invesco Ltd.$366.42M4,417,3671.48%
NORTHERN TRUST CORP$344.46M4,152,5691.39%
CHARLES SCHWAB INVESTMENT MANAGEMENT INC$321.87M3,880,2751.30%
Morgan Stanley$298.53M3,598,9731.21%
CENTERSQUARE INVESTMENT MANAGEMENT LLC$293.54M2,323,9740.78%
Legal & General Group Plc$278.42M3,356,4201.13%
PRUDENTIAL FINANCIAL INC$246.78M2,416,0630.81%
Contour Asset Management LLC$234.93M2,832,1820.95%
Pictet Asset Management Holding SA$190.43M2,295,9650.77%
AQR Capital Management, LLC$183.07M1,846,0730.62%
Nuveen, LLC$176.51M2,127,9310.71%
Capital World Investors$175.62M2,117,1690.71%
Bank of New York Mellon Corp/The$165.96M1,624,8360.55%
JPMORGAN CHASE & CO$159.92M1,927,9350.65%
Royal Bank of Canada$144.09M1,410,7200.47%
AMERIPRISE FINANCIAL INC$142.47M1,744,4050.59%
Vontobel Holding Ltd.$140.12M1,689,2460.57%
DUFF & PHELPS INVESTMENT MANAGEMENT CO$131.10M1,580,4520.53%
THE GOLDMAN SACHS GROUP, INC.$126.52M1,525,2400.51%
CBRE INVESTMENT MANAGEMENT LISTED REAL ASSETS LLC$126.44M1,237,9150.42%
BANK OF AMERICA CORP /DE$125.28M1,510,3450.51%
Mitsubishi UFJ Asset Management Co., Ltd.$124.11M982,5960.33%
Russell Investments Group, Ltd.$116.63M1,405,7600.47%
AMUNDI$111.49M1,091,5740.37%
Citadel Advisors LLC$92.85M1,119,3710.38%
HSBC HOLDINGS PLC$87.58M1,055,7750.35%
SEI INVESTMENTS CO$85.00M1,024,6640.34%
LPL Financial LLC$80.89M640,3830.22%
Sumitomo Mitsui Trust Group, Inc.$75.23M906,8880.30%
APG Asset Management US Inc.$71.06M703,9120.24%
Swiss National Bank$67.13M809,2610.27%
WELCH & FORBES LLC$66.60M652,0680.22%
UBS Group AG$66.02M795,9080.27%
Point72 Asset Management, L.P.$65.57M790,5040.27%
Epoch Investment Partners, Inc.$62.97M616,5130.21%
Barclays PLC$60.46M728,8570.24%
ADAGE CAPITAL PARTNERS GP, L.L.C.$60.27M590,0520.20%
RHUMBLINE ADVISERS$59.09M578,5430.19%
NOMURA ASSET MANAGEMENT CO LTD$57.54M563,3430.19%
CIBC Private Wealth Group LLC$56.21M677,6510.23%
Asset Management One Co., Ltd.$55.92M547,4740.18%
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