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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
276
$421K
277
$421K
278
$419K
279
$411K
280
$397K
281
$384K
282
$382K
283
$381K
284
$380K
285
$378K
286
$378K
287
$367K
288
$359K
289
$344K
290
$343K
291
$340K
292
$333K
293
$332K
294
$332K
295
$328K
296
$327K
297
$324K
298
$320K
299
$320K
300
$315K