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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
176
$2.54M
177
$2.53M
178
$2.5M
179
$2.47M
180
$2.47M
181
$2.36M
182
$2.32M
183
$2.27M
184
$2.23M
185
$2.23M
186
$2.13M
187
$2.1M
188
$2.08M
189
$2.07M
190
$2.06M
191
$2.04M
192
$2.03M
193
$2.02M
194
$1.99M
195
$1.95M
196
$1.75M
197
$1.74M
198
$1.74M
199
$1.72M
200
$1.64M