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Alnylam Pharmaceuticals

818 hedge funds and large institutions have $59.2B invested in Alnylam Pharmaceuticals in 2025 Q3 according to their latest regulatory filings, with 224 funds opening new positions, 280 increasing their positions, 222 reducing their positions, and 49 closing their positions.

New
Increased
Maintained
Reduced
Closed

more first-time investments, than exits

New positions opened: | Existing positions closed:

more funds holding in top 10

Funds holding in top 10:

more capital invested

Capital invested by funds: $ → $

more repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

26% more funds holding

Funds holding: 650818 (+168)

2.26% less ownership

Funds ownership: 101.3%99.03% (-2.3%)

13% less call options, than puts

Call options by funds: $562M | Put options by funds: $649M

Holders
818
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
13
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$562M
Puts
$649M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
ITP
826
Iron Triangle Partners
Connecticut
CCM
827
Cinctive Capital Management
New York
BFM
828
Boothbay Fund Management
New York
FTM
829
First Turn Management
California
MASUI
830
MIRAE ASSET SECURITIES (USA) INC.
New York
RAM
831
Readystate Asset Management
Illinois
PSC
832
Portman Square Capital
United Kingdom
SGH
833
Sivik Global Healthcare
Connecticut
HSA
834
Hussman Strategic Advisors
Maryland
VSQM
835
V-Square Quantitative Management
Illinois
WSFS
836
Wilmington Savings Fund Society
Delaware
EMCIP
837
Ewing Morris & Co Investment Partners
Ontario, Canada
BS
838
Banco Santander
Spain
QIM
839
Quantitative Investment Management
Virginia
Group One Trading
840
Group One Trading
Illinois
JAM
841
Jupiter Asset Management
United Kingdom
FIM
842
Freedom Investment Management
Connecticut
NRD
843
Nebula Research & Development
New York
IC
844
Iconiq Capital
California
SFC
845
Strategic Financial Concepts
Texas
GS
846
GTS Securities
New York
FTUS
847
Flow Traders U.S.
New York
VT
848
Volterra Technologies
New York
BIG
849
Brooklyn Investment Group
New York
CCA
850
Catalyst Capital Advisors
New York