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Alnylam Pharmaceuticals
ALNY
ALNY
848 hedge funds and large institutions have $51.7B invested in Alnylam Pharmaceuticals in 2025 Q4 according to their latest regulatory filings, with 170 funds opening new positions, 289 increasing their positions, 290 reducing their positions, and 118 closing their positions.
New
Increased
Maintained
Reduced
Closed
54% more call options, than puts
Call options by funds: $760M | Put options by funds: $494M
44% more first-time investments, than exits
New positions opened: 170 | Existing positions closed: 118
3% more funds holding
Funds holding: 821 → 848 (+27)
0% less repeat investments, than reductions
Existing positions increased: 289 | Existing positions reduced: 290
0.86% less ownership
Funds ownership: 99.09% → 98.23% (-0.86%)
13% less capital invested
Capital invested by funds: $59.2B → $51.7B (-$7.5B)
69% less funds holding in top 10
Funds holding in top 10: 13 → 4 (-9)
Holders
848
Holders Change
+27
Holders Change %
+3.29%
% of All Funds
10.32%
Holding in Top 10
4
Holding in Top 10 Change
-9
Holding in Top 10 Change %
-69.23%
% of All Funds
0.05%
New
170
Increased
289
Reduced
290
Closed
118
Calls
$760M
Puts
$494M
Net Calls
+$266M
Net Calls Change
+$352M
Top Buyers
| 1 |
Invesco
Atlanta,
Georgia
|
+$303M |
| 2 |
BlackRock
New York
|
+$220M |
| 3 |
UBS Group
Zurich,
Switzerland
|
+$149M |
| 4 |
D.E. Shaw & Co
New York
|
+$108M |
| 5 |
Morgan Stanley
New York
|
+$108M |
Top Sellers
| 1 |
RP
Regeneron Pharmaceuticals
Tarrytown,
New York
|
-$635M |
| 2 |
Fidelity Investments
Boston,
Massachusetts
|
-$383M |
| 3 |
Bank of America
Charlotte,
North Carolina
|
-$360M |
| 4 |
Jane Street
New York
|
-$287M |
| 5 |
Macquarie Group
Sydney, NSW 2000,
Australia
|
-$276M |
