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Alnylam Pharmaceuticals

Name Holding Trade Value Shares
Change
Change in
Stake
Fidelity Investments
1
Fidelity Investments
Massachusetts
$894M +$7.75M +120,214 +1%
Wellington Management Group
2
Wellington Management Group
Massachusetts
$739M +$21M +325,004 +4%
Vanguard Group
3
Vanguard Group
Pennsylvania
$280M +$19.8M +306,374 +9%
T. Rowe Price Associates
4
T. Rowe Price Associates
Maryland
$249M -$4.38M -67,971 -2%
Franklin Resources
5
Franklin Resources
California
$177M -$17.9M -277,324 -11%
GGHC
6
Gilder Gagnon Howe & Co
New York
$155M -$536K -8,308 -0.4%
UBS AM
7
UBS AM
Illinois
$135M +$1.33M +20,618 +1%
BIT
8
BlackRock Institutional Trust
California
$124M +$2.31M +35,771 +2%
BFA
9
BlackRock Fund Advisors
California
$115M +$3.77M +58,472 +4%
Baillie Gifford & Co
10
Baillie Gifford & Co
United Kingdom
$93M
State Street
11
State Street
Massachusetts
$86.6M +$2.55M +39,479 +4%
Wells Fargo
12
Wells Fargo
California
$76.1M -$1.03M -15,910 -2%
Jennison Associates
13
Jennison Associates
New York
$75.1M +$73.8K +1,144 +0.1%
Morgan Stanley
14
Morgan Stanley
New York
$67.3M -$373K -5,784 -0.7%
SPC
15
Slate Path Capital
New York
$66.8M +$16.6M +257,000 +43%
Capital World Investors
16
Capital World Investors
California
$66.3M
BB
17
BB Biotech
Switzerland
$61M +$10.3M +160,000 +26%
BM
18
Bridger Management
New York
$57.9M +$15.6M +241,688 +48%
Lord, Abbett & Co
19
Lord, Abbett & Co
New Jersey
$54M -$3.34M -51,724 -7%
1WCM
20
12 West Capital Management
New York
$50.8M +$42M +651,000 New
CCI
21
Columbus Circle Investors
$44.6M -$9.65M -149,584 -21%
Goldman Sachs
22
Goldman Sachs
New York
$44.6M +$516K +7,994 +1%
CWAM
23
Columbia Wanger Asset Management
Illinois
$43.3M -$14.9M -230,500 -29%
Artisan Partners
24
Artisan Partners
Wisconsin
$42.8M -$1.74M -27,002 -5%
Invesco
25
Invesco
Georgia
$40.3M +$1.07M +16,578 +3%