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Alnylam Pharmaceuticals

785 hedge funds and large institutions have $42.5B invested in Alnylam Pharmaceuticals in 2026 Q1 according to their latest regulatory filings, with 102 funds opening new positions, 320 increasing their positions, 257 reducing their positions, and 153 closing their positions.

New
Increased
Maintained
Reduced
Closed

more call options, than puts

Call options by funds: $ | Put options by funds: $

more repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

less ownership

Funds ownership:

less funds holding

Funds holding:

18% less capital invested

Capital invested by funds: $51.7B → $42.5B (-$9.26B)

25% less funds holding in top 10

Funds holding in top 10: 43 (-1)

33% less first-time investments, than exits

New positions opened: 102 | Existing positions closed: 153

Holders
785
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
3
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$450M
Puts
$205M
Net Calls
Net Calls Change

Top Buyers

1 +$1.17B
2 +$916M
3 +$546M
4
Two Sigma Investments
Two Sigma Investments
New York
+$468M
5
ClearBridge Investments
ClearBridge Investments
New York
+$258M

Top Sellers

1 -$1.87B
2 -$450M
3 -$448M
4
Invesco
Invesco
Georgia
-$297M
5
1832 Asset Management
1832 Asset Management
Ontario, Canada
-$175M
Name Holding Trade Value Shares
Change
Change in
Stake
GWS
751
Greykasell Wealth Strategies
California
$1.32K
NB
752
NBT Bank
New York
$1.32K
TCM
753
Triumph Capital Management
Colorado
$1.32K
WSFG
754
Wall Street Financial Group
Illinois
$1.32K
SWP
755
Strategic Wealth Partners
Ohio
$1.24K
CI
756
CX Institutional
Indiana
$1K
WCM
757
Winthrop Capital Management
Indiana
$1K
PJC
758
Phillip James Consulting
Minnesota
$1K
HNW
759
High Note Wealth
Minnesota
$993
1CP
760
1015 Capital Partners
Pennsylvania
$993
MHR
761
Matthew Hamilton Rosenberg
$993
AA
762
Addison Advisors
Vermont
$993
CJ
763
Caitlin John
Michigan
$993
GIA
764
GHP Investment Advisors
Colorado
$993
VWM
765
Vermillion Wealth Management
Minnesota
$993
CA
766
CoreCap Advisors
Michigan
$662
Kayne Anderson Rudnick Investment Management
767
Kayne Anderson Rudnick Investment Management
California
$662
QWM
768
Quaker Wealth Management
New Jersey
$662
IRC
769
Investors Research Corp
Georgia
$662
TWM
770
TopTier Wealth Management
Wisconsin
$662
IPS
771
Investors Portfolio Services
Washington
$587
AWM
772
Activest Wealth Management
Florida
$331
HIA
773
HFM Investment Advisors
New Jersey
$331
CFD
774
Creative Financial Designs
Indiana
$331
APW
775
Atlantic Private Wealth
North Carolina
$331