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Iron Mountain

Name Holding Trade Value Shares
Change
Change in
Stake
Capital World Investors
1
Capital World Investors
California
$518M -$115M -4,508,665 -18%
Vanguard Group
2
Vanguard Group
Pennsylvania
$308M +$8.57M +337,297 +3%
DSA
3
Davis Selected Advisers
Arizona
$262M -$2M -78,563 -0.7%
HCM
4
Highfields Capital Management
Massachusetts
$239M -$14.1M -553,335 -5%
SC
5
Schooner Capital
Florida
$233M
State Street
6
State Street
Massachusetts
$223M +$45.5M +1,791,473 +25%
Parnassus Investments
7
Parnassus Investments
California
$221M +$28.9M +1,138,521 +15%
T. Rowe Price Associates
8
T. Rowe Price Associates
Maryland
$213M +$143M +5,642,089 +195%
BIT
9
BlackRock Institutional Trust
California
$117M -$390K -15,348 -0.3%
BC
10
Brookfield Corp
Ontario, Canada
$111M +$102M +4,023,844 +922%
CGT
11
Capital Guardian Trust
California
$105M -$3.06M -120,462 -3%
Bank of New York Mellon
12
Bank of New York Mellon
New York
$104M +$926K +36,460 +0.9%
Jennison Associates
13
Jennison Associates
New York
$89.6M -$50.8M -2,001,825 -36%
RRAM
14
River Road Asset Management
Kentucky
$74.3M -$211K -8,294 -0.3%
MCM
15
Munder Capital Management
Michigan
$68.2M +$542K +21,349 +0.8%
RIM
16
RS Investment Management
California
$67.2M +$3.22M +126,585 +5%
Northern Trust
17
Northern Trust
Illinois
$60.4M +$1.98M +78,035 +3%
Invesco
18
Invesco
Georgia
$56.1M +$2.53M +99,624 +5%
Renaissance Technologies
19
Renaissance Technologies
New York
$53.7M -$1.96M -77,255 -3%
BFA
20
BlackRock Fund Advisors
California
$53.3M +$1.82M +71,601 +3%
WA
21
Wasatch Advisors
Utah
$50.6M +$51.5M +2,026,076 New
Capital International Investors
22
Capital International Investors
California
$49.6M
MP
23
Makaira Partners
California
$49.1M +$3.65M +143,577 +8%
Citadel Advisors
24
Citadel Advisors
Florida
$48.8M +$40.6M +1,597,026 +447%
Fidelity Investments
25
Fidelity Investments
Massachusetts
$46.9M +$6.64M +261,571 +16%