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Alnylam Pharmaceuticals

645 hedge funds and large institutions have $43B invested in Alnylam Pharmaceuticals in 2025 Q2 according to their latest regulatory filings, with 96 funds opening new positions, 257 increasing their positions, 214 reducing their positions, and 62 closing their positions.

New
Increased
Maintained
Reduced
Closed

more first-time investments, than exits

New positions opened: | Existing positions closed:

more capital invested

Capital invested by funds: $ → $

more repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

more funds holding

Funds holding:

3.41% more ownership

Funds ownership: 97.81%101.22% (+3.4%)

8% less call options, than puts

Call options by funds: $188M | Put options by funds: $203M

10% less funds holding in top 10

Funds holding in top 10: 109 (-1)

Holders
645
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
9
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$188M
Puts
$203M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
SS
601
Sunbelt Securities
Texas
$3.53K
WAM
602
WFA Asset Management
Wisconsin
$3.4K
MSFP
603
Mark Sheptoff Financial Planning
Connecticut
$3.26K
CW
604
Curio Wealth
Maryland
$3.26K
AIC
605
Archer Investment Corporation
Indiana
$3.26K
PCM
606
Penserra Capital Management
California
$3K
NS
607
NBC Securities
Alabama
$3K
FRA
608
Front Row Advisors
California
$2.94K
NWM
609
Nova Wealth Management
Florida
$2.65K
CIR
610
Clear Investment Research
Georgia
$2.61K
FWM
611
FSA Wealth Management
Massachusetts
$2.61K
UB
612
UMB Bank
Missouri
$2.61K
HWA
613
HHM Wealth Advisors
Tennessee
$2.28K
HWP
614
Highline Wealth Partners
California
$2.28K
TCA
615
Trifecta Capital Advisors
Illinois
$2.28K
JSAM
616
J. Safra Asset Management
New York
$2.26K
WCM
617
WealthTrak Capital Management
Virginia
$1.96K
TIM
618
Tortoise Investment Management
New York
$1.96K
BHWM
619
Bay Harbor Wealth Management
Maryland
$1.96K
MA
620
Montag & Associates
Georgia
$1.9K
Kayne Anderson Rudnick Investment Management
621
Kayne Anderson Rudnick Investment Management
California
$1.86K
GC
622
Garde Capital
Washington
$1.63K
SC
623
Stephens Consulting
Michigan
$1.63K
TFA
624
Toth Financial Advisory
Virginia
$1.63K
CIAS
625
CBIZ Investment Advisory Services
Ohio
$1.63K