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Alnylam Pharmaceuticals

806 hedge funds and large institutions have $59B invested in Alnylam Pharmaceuticals in 2025 Q3 according to their latest regulatory filings, with 221 funds opening new positions, 274 increasing their positions, 221 reducing their positions, and 48 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 funds holding

Funds holding:

24% more repeat investments, than reductions

Existing positions increased: 274 | Existing positions reduced: 221

2.46% less ownership

Funds ownership: 101.24%98.78% (-2.5%)

13% less call options, than puts

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

Holders
806
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
Walleye Trading
451
Walleye Trading
New York
$727K
SBFM
452
S-Bank Fund Management
Finland
$726K
DT
453
Diversified Trust
Tennessee
$716K
LWCFA
454
Loring Wolcott & Coolidge Fiduciary Advisors
Massachusetts
$711K
FFM
455
Forum Financial Management
Illinois
$710K
O
456
Ossiam
France
$710K
FB
457
Fulton Bank
Pennsylvania
$704K
OCM
458
Orser Capital Management
Texas
$704K
TRCT
459
Tower Research Capital (TRC)
New York
$701K
NA
460
NewEdge Advisors
Louisiana
$695K
HNWAG
461
High Net Worth Advisory Group
Florida
$684K
HWM
462
HB Wealth Management
Georgia
$673K
PAS
463
Point72 Asia (Singapore)
Singapore
$673K
QI
464
Qtron Investments
Massachusetts
$671K
FRM
465
Fox Run Management
Connecticut
$668K
VIA
466
Virtus Investment Advisers
Connecticut
$665K
SBF
467
Sara-Bay Financial
Florida
$661K
SPIA
468
Steward Partners Investment Advisory
New York
$658K
SFA
469
Souders Financial Advisors
Ohio
$649K
PAG
470
Private Advisory Group
Washington
$647K
LAM
471
LECAP Asset Management
United Kingdom
$647K
FGP
472
Freestone Grove Partners
California
$644K
NG
473
Norden Group
Utah
$643K
JSAM
474
J. Safra Asset Management
New York
$636K
BPC
475
Banque Pictet & Cie
Switzerland
$632K