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Alnylam Pharmaceuticals

401 hedge funds and large institutions have $21B invested in Alnylam Pharmaceuticals in 2021 Q3 according to their latest regulatory filings, with 48 funds opening new positions, 154 increasing their positions, 120 reducing their positions, and 41 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
401
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
9
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$275M
Puts
$138M
Net Calls
Net Calls Change

Top Buyers

1 +$66M
2 +$52.9M
3 +$43.8M
4
BlackRock
BlackRock
New York
+$42.4M
5
Fidelity Investments
Fidelity Investments
Massachusetts
+$36.9M

Top Sellers

1 -$341M
2 -$54.5M
3 -$50.6M
4
ACA
Avoro Capital Advisors
New York
-$28.3M
5
JP Morgan Chase
JP Morgan Chase
New York
-$27M
Name Holding Trade Value Shares
Change
Change in
Stake
151
$3.94M
152
$3.79M
153
$3.76M
154
$3.75M
155
$3.64M
156
$3.36M
157
$3.3M
158
$3.19M
159
$3.17M
160
$3.11M
161
$3.1M
162
$3.1M
163
$3.1M
164
$3.08M
165
$3.02M
166
$2.96M
167
$2.94M
168
$2.93M
169
$2.9M
170
$2.8M
171
$2.79M
172
$2.71M
173
$2.7M
174
$2.64M
175
$2.62M