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Alnylam Pharmaceuticals

Name Holding Trade Value Shares
Change
Change in
Stake
Fidelity Investments
1
Fidelity Investments
Massachusetts
$1.62B +$3.15M +36,852 +0.3%
Wellington Management Group
2
Wellington Management Group
Massachusetts
$1.33B -$48.5M -567,731 -5%
Dodge & Cox
3
Dodge & Cox
California
$1.07B -$3.78M -44,325 -0.5%
T. Rowe Price Associates
4
T. Rowe Price Associates
Maryland
$1.01B +$162M +1,896,280 +28%
Vanguard Group
5
Vanguard Group
Pennsylvania
$763M +$6.26M +73,390 +1%
BlackRock
6
BlackRock
New York
$718M +$78.8M +923,506 +18%
Baillie Gifford & Co
7
Baillie Gifford & Co
United Kingdom
$400M -$2.21M -25,924 -0.8%
State Street
8
State Street
Massachusetts
$240M +$9.06M +106,170 +5%
Goldman Sachs
9
Goldman Sachs
New York
$211M +$24.1M +282,039 +19%
PA
10
Perceptive Advisors
New York
$210M -$3.75M -43,959 -2%
BRC
11
Blue Ridge Capital
New York
$180M +$13.2M +155,199 +11%
UBS AM
12
UBS AM
Illinois
$160M -$7.18M -84,118 -6%
GGHC
13
Gilder Gagnon Howe & Co
New York
$132M -$5.53M -64,825 -5%
BB
14
BB Biotech
Switzerland
$131M -$9.39M -110,000 -9%
O
15
OrbiMed
New York
$127M +$38M +445,600 +70%
D.E. Shaw & Co
16
D.E. Shaw & Co
New York
$115M +$21.2M +248,804 +34%
Morgan Stanley
17
Morgan Stanley
New York
$115M -$3.22M -37,708 -4%
First Trust Advisors
18
First Trust Advisors
Illinois
$92.2M +$13.5M +158,288 +25%
1WCM
19
12 West Capital Management
New York
$82.2M
Janus Henderson Group
20
Janus Henderson Group
$80.2M +$1.34M +15,687 +2%
Geode Capital Management
21
Geode Capital Management
Massachusetts
$77.5M -$246K -2,878 -0.4%
RI
22
RTW Investments
New York
$73.2M -$35.6M -417,269 -40%
SPC
23
Slate Path Capital
New York
$65.9M -$49M -574,000 -51%
Norges Bank
24
Norges Bank
Norway
$65.2M -$16.2M -189,396 -25%
ACH
25
ArrowMark Colorado Holdings
Colorado
$59.2M -$2.94M -34,400 -6%