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Iron Mountain

Name Holding Trade Value Shares
Change
Change in
Stake
Vanguard Group
1
Vanguard Group
Pennsylvania
$908M +$43M +1,228,593 +4%
Capital World Investors
2
Capital World Investors
California
$620M -$78.4M -2,237,637 -10%
T. Rowe Price Associates
3
T. Rowe Price Associates
Maryland
$403M +$209M +5,981,325 +85%
Parnassus Investments
4
Parnassus Investments
California
$350M +$17.4M +495,758 +5%
Capital International Investors
5
Capital International Investors
California
$282M +$553K +15,800 +0.2%
SC
6
Schooner Capital
Florida
$259M -$1.75M -50,000 -0.6%
State Street
7
State Street
Massachusetts
$239M -$5.18M -147,799 -2%
BIT
8
BlackRock Institutional Trust
California
$200M +$21.9M +626,113 +11%
HCM
9
Highfields Capital Management
Massachusetts
$191M
RRAM
10
River Road Asset Management
Kentucky
$152M -$5.13M -146,582 -3%
EIP
11
Epoch Investment Partners
New York
$146M +$36.7M +1,048,864 +29%
BFA
12
BlackRock Fund Advisors
California
$121M -$3.72M -106,302 -3%
OCAM
13
Owl Creek Asset Management
New York
$112M -$27.1M -774,533 -18%
SF
14
Schooner Foundation
Massachusetts
$105M
Massachusetts Financial Services
15
Massachusetts Financial Services
Massachusetts
$95.8M -$628K -17,939 -0.6%
WA
16
Wasatch Advisors
Utah
$77.7M -$2.97M -84,900 -3%
CGT
17
Capital Guardian Trust
California
$77.3M -$7.78M -222,218 -8%
Northern Trust
18
Northern Trust
Illinois
$75.4M -$15.2M -433,092 -15%
MP
19
Makaira Partners
California
$67.6M +$54.8M +1,564,043 +254%
Bank of New York Mellon
20
Bank of New York Mellon
New York
$65.8M -$1.82M -52,088 -2%
RJA
21
Raymond James & Associates
Florida
$57.5M +$8.59M +245,401 +15%
JHIU
22
Janus Henderson Investors US
Colorado
$52M +$17.5M +500,558 +43%
Goldman Sachs
23
Goldman Sachs
New York
$51.3M -$3.42M -97,726 -6%
Geode Capital Management
24
Geode Capital Management
Massachusetts
$51M +$57.8M +1,649,079 New
RIM
25
RS Investment Management
California
$49.8M -$1.27M -36,213 -2%