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Alnylam Pharmaceuticals
ALNY

Overview Fund Activity

560 hedge funds and large institutions have $33.4B invested in Alnylam Pharmaceuticals in 2024 Q3 according to their latest regulatory filings, with 105 funds opening new positions, 217 increasing their positions, 170 reducing their positions, and 58 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
560
Holders Change
+42
Holders Change %
+8.11%
% of All Funds
8.1%
Holding in Top 10
7
Holding in Top 10 Change
+1
Holding in Top 10 Change %
+16.67%
% of All Funds
0.1%
New
105
Increased
217
Reduced
170
Closed
58
Calls
$364M
Puts
$325M
Net Calls
+$39.2M
Net Calls Change
-$64.1M

Top Buyers

1
Fidelity Investments
Fidelity Investments
Massachusetts
$4.04B
2
Capital Research Global Investors
Capital Research Global Investors
California
$1.44B
3
Capital World Investors
Capital World Investors
California
$4.54B
4
Winslow Capital Management
Winslow Capital Management
Minnesota
$264M
5
OAG
Orbis Allan Gray
Bermuda
$349M

Top Sellers

1
Wellington Management Group
Wellington Management Group
Massachusetts
$1.36B
2
Baillie Gifford & Co
Baillie Gifford & Co
United Kingdom
$1.34B
3
DTC
Deep Track Capital
Connecticut
$0
4
ACA
Avoro Capital Advisors
New York
$0
5
Citadel Advisors
Citadel Advisors
Florida
$6.58M
Name Holding Trade Value Shares
Change 		Shares
Change %
PFM
576
Privium Fund Management
Netherlands
– -$4.8M -19,393 Closed
DAM
577
DLD Asset Management
New York
– -$3.94M -16,200 Closed
SGA
578
Sector Gamma AS
Norway
– -$3.7M -15,240 Closed
Arrowstreet Capital
579
Arrowstreet Capital
Massachusetts
– -$3.64M -14,971 Closed
Jacobs Levy Equity Management
580
Jacobs Levy Equity Management
New Jersey
– -$3.23M -13,283 Closed
RAM
581
Readystate Asset Management
Illinois
– -$2.33M -9,600 Closed
MPM
582
MBB Public Markets
Illinois
– -$2.24M -9,200 Closed
Simplex Trading
583
Simplex Trading
Illinois
– -$2.14M -8,803 Closed
FC
584
FORA Capital
Florida
– -$1.74M -7,173 Closed
ET
585
Entropy Technologies
New York
– -$1.66M -6,849 Closed
CCM
586
Cinctive Capital Management
New York
– -$1.65M -6,781 Closed
EP
587
Edgestream Partners
New Jersey
– -$1.47M -6,052 Closed
QFA
588
Quattro Financial Advisors
Texas
– -$1.22M -5,000 Closed
AI
589
Atom Investors
Texas
– -$1.17M -4,800 Closed
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
590
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
Ontario, Canada
– -$1.15M -4,744 Closed
MC
591
Machina Capital
France
– -$1.04M -4,266 Closed
TMAM
592
Tokio Marine Asset Management
Japan
– -$965K -3,973 Closed
WEG
593
World Equity Group
Illinois
– -$767K -3,155 Closed
LJAC
594
L.J. Altfest & Co
New York
– -$513K -2,112 Closed
BC
595
Bridgefront Capital
Texas
– -$486K -1,998 Closed
ACM
596
ADAR1 Capital Management
Texas
– -$450K -1,850 Closed
SW
597
Simplicity Wealth
New Jersey
– -$430K -1,770 Closed
XT
598
XTX Topco
Cayman Islands
– -$360K -1,480 Closed
Walleye Trading
599
Walleye Trading
New York
– -$320K -1,318 Closed
GLA
600
Great Lakes Advisors
Illinois
– -$316K -1,299 Closed
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