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Alnylam Pharmaceuticals

Name Holding Trade Value Shares
Change
Change in
Stake
Fidelity Investments
1
Fidelity Investments
Massachusetts
$712M +$1.94M +30,785 +0.2%
Wellington Management Group
2
Wellington Management Group
Massachusetts
$664M +$1.65M +26,176 +0.2%
Vanguard Group
3
Vanguard Group
Pennsylvania
$299M +$11.5M +182,614 +4%
T. Rowe Price Associates
4
T. Rowe Price Associates
Maryland
$222M +$171M +2,712,060 +211%
Baillie Gifford & Co
5
Baillie Gifford & Co
United Kingdom
$188M +$650K +10,317 +0.3%
Dodge & Cox
6
Dodge & Cox
California
$140M +$159M +2,516,669 New
State Street
7
State Street
Massachusetts
$122M +$16.3M +258,984 +13%
BIT
8
BlackRock Institutional Trust
California
$107M +$9.43M +149,671 +8%
BFA
9
BlackRock Fund Advisors
California
$104M +$2.05M +32,506 +2%
UBS AM
10
UBS AM
Illinois
$92.3M +$690K +10,959 +0.7%
GGHC
11
Gilder Gagnon Howe & Co
New York
$77.3M -$1.3M -20,684 -1%
BRC
12
Blue Ridge Capital
New York
$73.2M +$15.4M +245,000 +23%
BB
13
BB Biotech
Switzerland
$66.1M
SPC
14
Slate Path Capital
New York
$63M
Jennison Associates
15
Jennison Associates
New York
$54.1M +$313K +4,972 +0.5%
Morgan Stanley
16
Morgan Stanley
New York
$48.6M -$12.8M -203,778 -19%
RI
17
RTW Investments
New York
$46.2M -$2.13M -33,830 -4%
AG
18
Artal Group
Luxembourg
$39.4M +$6.93M +110,000 +18%
1WCM
19
12 West Capital Management
New York
$38.8M +$252K +4,000 +0.6%
Wells Fargo
20
Wells Fargo
California
$38.8M -$4.7M -74,653 -10%
Goldman Sachs
21
Goldman Sachs
New York
$38.5M +$3.23M +51,294 +8%
BM
22
Bridger Management
New York
$38.1M -$6.94M -110,203 -14%
Franklin Resources
23
Franklin Resources
California
$32.9M -$22.2M -351,723 -37%
Capital World Investors
24
Capital World Investors
California
$31.8M -$86M -1,364,903 -70%
BG
25
BlackRock Group
United Kingdom
$30.9M +$2.37M +37,624 +7%