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Alnylam Pharmaceuticals

802 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, 272 increasing their positions, 219 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: 272 | Existing positions reduced: 219

2.48% less ownership

Funds ownership: 101.22%98.74% (-2.5%)

13% less call options, than puts

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

Holders
802
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
SPS
326
Susquehanna Portfolio Strategies
Pennsylvania
$2.28M
BJL
327
Brighton Jones LLC
Washington
$2.25M
BC
328
Burney Company
Virginia
$2.23M
PIM
329
Plato Investment Management
Australia
$2.22M
BCV
330
Banque Cantonale Vaudoise
Switzerland
$2.22M
CBU
331
CIBC Bancorp USA
Illinois
$2.13M
IWC
332
Integrated Wealth Concepts
Massachusetts
$2.11M
ProShare Advisors
333
ProShare Advisors
Maryland
$2.11M
DF
334
Donoghue Forlines
Massachusetts
$2.11M
AAM
335
Azzad Asset Management
Virginia
$2.11M
AC
336
Allstate Corporation
Illinois
$2.08M
HCMT
337
Highland Capital Management (Tennessee)
Tennessee
$2.08M
AIM
338
Aigen Investment Management
New York
$2.07M
CB
339
Commerce Bank
Missouri
$2.07M
AAM
340
Advisors Asset Management
Colorado
$2.06M
OAC
341
OMERS Administration Corp
Ontario, Canada
$2.06M
TMAM
342
Tokio Marine Asset Management
Japan
$2.03M
PCA
343
Pallas Capital Advisors
Massachusetts
$2.02M
Rockefeller Capital Management
344
Rockefeller Capital Management
New York
$2M
MGP
345
Metis Global Partners
California
$1.97M
SFA
346
Sequoia Financial Advisors
Ohio
$1.96M
OAM
347
Oppenheimer Asset Management
New York
$1.96M
SFM
348
Soros Fund Management
New York
$1.96M
EF
349
Empowered Funds
Pennsylvania
$1.95M
HCM
350
Howland Capital Management
Massachusetts
$1.93M