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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
HI
651
Horizon Investments
North Carolina
$184K
VCM
652
Versant Capital Management
Arizona
$179K
OAM
653
Ostrum Asset Management
France
$174K
CA
654
CoreCap Advisors
Michigan
$173K
BTI
655
Blue Trust Inc
Georgia
$159K
OIAM
656
OFI Invest Asset Management
France
$156K
TWC
657
TD Waterhouse Canada
Ontario, Canada
$152K
A
658
AlphaQuest
New York
$151K
LFG
659
Larson Financial Group
Missouri
$137K
C
660
Covestor
United Kingdom
$124K
TWD
661
True Wealth Design
Ohio
$104K
Bessemer Group
662
Bessemer Group
New Jersey
$101K
SWM
663
Spire Wealth Management
Virginia
$94.3K
CWP
664
Concord Wealth Partners
Virginia
$91.2K
MPWT
665
MassMutual Private Wealth & Trust
Connecticut
$89.8K
AUB
666
Atlantic Union Bankshares
Virginia
$87.1K
LI
667
LRI Investments
Florida
$86.5K
EDRH
668
Edmond de Rothschild Holding
Switzerland
$85.7K
SC
669
Steph & Co
Wisconsin
$84.4K
PWMG
670
Prestige Wealth Management Group
New Jersey
$83.9K
PFBT
671
Parkside Financial Bank & Trust
Missouri
$81.6K
EPIM
672
Evelyn Partners Investment Management
$79.8K
BBHC
673
Brown Brothers Harriman & Co
New York
$78.9K
IUHSA
674
Itau Unibanco Holding S.A.
Brazil
$76.6K
CAL
675
Capital Advisors Ltd
Ohio
$74K