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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
251
$644K
252
$634K
253
$634K
254
$629K
255
$629K
256
$623K
257
$612K
258
$602K
259
$585K
260
$572K
261
$566K
262
$566K
263
$551K
264
$550K
265
$521K
266
$518K
267
$510K
268
$470K
269
$463K
270
$463K
271
$448K
272
$441K
273
$440K
274
$429K
275
$422K