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Alnylam Pharmaceuticals

812 hedge funds and large institutions have $59B invested in Alnylam Pharmaceuticals in 2025 Q3 according to their latest regulatory filings, with 222 funds opening new positions, 277 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 funds holding

Funds holding:

25% more repeat investments, than reductions

Existing positions increased: 277 | Existing positions reduced: 222

2.48% less ownership

Funds ownership: 101.29%98.81% (-2.5%)

13% less call options, than puts

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

Holders
812
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
AI
326
Atria Investments
North Carolina
$2.37M
GIA
327
Gateway Investment Advisers
Ohio
$2.34M
FPAS
328
Focus Partners Advisor Solutions
Missouri
$2.28M
SPS
329
Susquehanna Portfolio Strategies
Pennsylvania
$2.28M
BJL
330
Brighton Jones LLC
Washington
$2.25M
BC
331
Burney Company
Virginia
$2.23M
PIM
332
Plato Investment Management
Australia
$2.22M
BCV
333
Banque Cantonale Vaudoise
Switzerland
$2.22M
CBU
334
CIBC Bancorp USA
Illinois
$2.13M
IWC
335
Integrated Wealth Concepts
Massachusetts
$2.11M
ProShare Advisors
336
ProShare Advisors
Maryland
$2.11M
DF
337
Donoghue Forlines
Massachusetts
$2.11M
AAM
338
Azzad Asset Management
Virginia
$2.11M
AC
339
Allstate Corporation
Illinois
$2.08M
HCMT
340
Highland Capital Management (Tennessee)
Tennessee
$2.08M
AIM
341
Aigen Investment Management
New York
$2.07M
CB
342
Commerce Bank
Missouri
$2.07M
AAM
343
Advisors Asset Management
Colorado
$2.06M
OAC
344
OMERS Administration Corp
Ontario, Canada
$2.06M
TMAM
345
Tokio Marine Asset Management
Japan
$2.03M
PCA
346
Pallas Capital Advisors
Massachusetts
$2.02M
Rockefeller Capital Management
347
Rockefeller Capital Management
New York
$2M
MGP
348
Metis Global Partners
California
$1.97M
SFA
349
Sequoia Financial Advisors
Ohio
$1.96M
OAM
350
Oppenheimer Asset Management
New York
$1.96M