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Iron Mountain

Name Holding Trade Value Shares
Change
Change in
Stake
Vanguard Group
1
Vanguard Group
Pennsylvania
$1.02B +$490M +13,458,422 +105%
Capital World Investors
2
Capital World Investors
California
$964M +$60.6M +1,667,319 +7%
Parnassus Investments
3
Parnassus Investments
California
$408M +$46.5M +1,279,528 +14%
SC
4
Schooner Capital
Florida
$342M +$21.7M +596,892 +7%
State Street
5
State Street
Massachusetts
$327M +$32.7M +898,560 +12%
T. Rowe Price Associates
6
T. Rowe Price Associates
Maryland
$276M +$12.7M +349,732 +5%
HCM
7
Highfields Capital Management
Massachusetts
$247M -$326M -8,975,469 -58%
BIT
8
BlackRock Institutional Trust
California
$222M +$43M +1,183,534 +26%
Capital International Investors
9
Capital International Investors
California
$215M +$13.7M +375,339 +7%
RRAM
10
River Road Asset Management
Kentucky
$184M +$12.6M +345,450 +8%
OCAM
11
Owl Creek Asset Management
New York
$174M +$11.1M +306,483 +7%
BFA
12
BlackRock Fund Advisors
California
$157M +$29.9M +821,404 +25%
CGT
13
Capital Guardian Trust
California
$150M -$18.3M -501,839 -11%
Massachusetts Financial Services
14
Massachusetts Financial Services
Massachusetts
$136M +$127M +3,484,942 +9,213%
SF
15
Schooner Foundation
Massachusetts
$130M +$6.14M +168,837 +5%
WA
16
Wasatch Advisors
Utah
$124M -$7.97M -219,011 -6%
Victory Capital Management
17
Victory Capital Management
Texas
$96.2M +$90.5M +2,487,284 New
Northern Trust
18
Northern Trust
Illinois
$85M -$19M -522,732 -19%
Bank of New York Mellon
19
Bank of New York Mellon
New York
$78.3M -$64.8M -1,782,584 -47%
RIM
20
RS Investment Management
California
$62.9M -$46.6M -1,282,359 -44%
Fidelity Investments
21
Fidelity Investments
Massachusetts
$60M -$13.3M -364,935 -19%
BC
22
Brookfield Corp
Ontario, Canada
$59.4M -$61.5M -1,691,054 -52%
Norges Bank
23
Norges Bank
Norway
$58.8M +$3.73M +102,683 +7%
Morgan Stanley
24
Morgan Stanley
New York
$57.4M +$8.18M +224,821 +18%
Deutsche Bank
25
Deutsche Bank
Germany
$55.8M +$36.9M +1,015,057 +238%