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Alnylam Pharmaceuticals

Name Holding Trade Value Shares
Change
Change in
Stake
Fidelity Investments
1
Fidelity Investments
Massachusetts
$662M +$1.65M +35,803 +0.3%
Wellington Management Group
2
Wellington Management Group
Massachusetts
$617M +$1.44M +31,208 +0.3%
Dodge & Cox
3
Dodge & Cox
California
$482M +$8.98M +194,295 +2%
Vanguard Group
4
Vanguard Group
Pennsylvania
$290M +$9.28M +200,890 +4%
BlackRock
5
BlackRock
New York
$243M +$219M +4,732,617 +34,755%
T. Rowe Price Associates
6
T. Rowe Price Associates
Maryland
$214M +$197K +4,255 +0.1%
Baillie Gifford & Co
7
Baillie Gifford & Co
United Kingdom
$171M +$762K +16,489 +0.5%
State Street
8
State Street
Massachusetts
$111M -$9.05M -195,766 -8%
SPC
9
Slate Path Capital
New York
$103M
UBS AM
10
UBS AM
Illinois
$88.7M +$2.94M +63,655 +4%
BRC
11
Blue Ridge Capital
New York
$81.5M +$12.5M +270,000 +20%
Goldman Sachs
12
Goldman Sachs
New York
$70.9M +$21.7M +469,557 +51%
BB
13
BB Biotech
Switzerland
$63.6M +$2.31M +50,000 +4%
GGHC
14
Gilder Gagnon Howe & Co
New York
$61.8M -$1.14M -24,745 -2%
PA
15
Perceptive Advisors
New York
$56.6M +$45.5M +985,000 +831%
RI
16
RTW Investments
New York
$56M +$14M +303,308 +38%
BM
17
Bridger Management
New York
$37.3M +$392K +8,476 +1%
Morgan Stanley
18
Morgan Stanley
New York
$36M -$5.1M -110,448 -14%
1WCM
19
12 West Capital Management
New York
$35.9M
First Trust Advisors
20
First Trust Advisors
Illinois
$35.6M -$2.04M -44,224 -6%
JHIU
21
Janus Henderson Investors US
Colorado
$33.3M +$6.1M +131,969 +26%
Norges Bank
22
Norges Bank
Norway
$33M -$936K -20,248 -3%
ACH
23
ArrowMark Colorado Holdings
Colorado
$31.1M -$4M -86,593 -13%
Geode Capital Management
24
Geode Capital Management
Massachusetts
$29.6M +$1.98M +42,781 +8%
PAMU
25
Pictet Asset Management (UK)
United Kingdom
$28.9M +$10.9M +236,379 +72%