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Alnylam Pharmaceuticals

Name Holding Trade Value Shares
Change
Change in
Stake
Fidelity Investments
1
Fidelity Investments
Massachusetts
$716M +$104M +1,745,486 +18%
Wellington Management Group
2
Wellington Management Group
Massachusetts
$577M +$64.6M +1,087,573 +14%
Vanguard Group
3
Vanguard Group
Pennsylvania
$207M +$35.4M +595,350 +22%
T. Rowe Price Associates
4
T. Rowe Price Associates
Maryland
$205M -$20.4M -342,698 -10%
Franklin Resources
5
Franklin Resources
California
$160M -$3.58M -60,195 -2%
GGHC
6
Gilder Gagnon Howe & Co
New York
$126M +$4.77M +80,272 +4%
UBS AM
7
UBS AM
Illinois
$108M +$2.04M +34,330 +2%
BIT
8
BlackRock Institutional Trust
California
$98.4M +$2.21M +37,106 +2%
BFA
9
BlackRock Fund Advisors
California
$88.9M -$53.6M -902,180 -39%
Baillie Gifford & Co
10
Baillie Gifford & Co
United Kingdom
$75.2M +$7.02M +118,130 +11%
State Street
11
State Street
Massachusetts
$67.6M -$21.2M -357,034 -25%
Norges Bank
12
Norges Bank
Norway
$64.2M +$37M +622,369 +158%
Wells Fargo
13
Wells Fargo
California
$62.5M -$4.69M -78,830 -7%
Jennison Associates
14
Jennison Associates
New York
$60.7M -$5.43M -91,405 -9%
Morgan Stanley
15
Morgan Stanley
New York
$54.8M +$7.63M +128,433 +17%
Capital World Investors
16
Capital World Investors
California
$53.6M -$951K -16,000 -2%
CWAM
17
Columbia Wanger Asset Management
Illinois
$49.6M -$7.03M -118,264 -13%
Lord, Abbett & Co
18
Lord, Abbett & Co
New Jersey
$47M +$35.8M +601,719 +424%
CCI
19
Columbus Circle Investors
$45.5M -$16.9M -283,509 -28%
Northern Trust
20
Northern Trust
Illinois
$41.9M -$6.15M -103,447 -13%
BB
21
BB Biotech
Switzerland
$39.2M +$8.92M +150,000 +32%
SPC
22
Slate Path Capital
New York
$37.8M +$11.1M +186,460 +45%
Artisan Partners
23
Artisan Partners
Wisconsin
$36.3M +$3.33M +55,975 +11%
Goldman Sachs
24
Goldman Sachs
New York
$35.6M +$3M +50,522 +10%
JP Morgan Chase
25
JP Morgan Chase
New York
$32.2M +$5.9M +99,216 +24%