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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
TFM
551
TFC Financial Management
Massachusetts
$24.1K
S
552
Sachetta
Massachusetts
$23.8K
WT
553
Whittier Trust
California
$22.5K
SO
554
Sierra Ocean
California
$22.2K
TRCT
555
Tower Research Capital (TRC)
New York
$20.9K
MCM
556
MV Capital Management
Maryland
$20.5K
SS
557
SBI Securities
Japan
$20.5K
PWMG
558
Private Wealth Management Group
New Jersey
$20.2K
CFO
559
CVA Family Office
Colorado
$19.9K
GTAM
560
Global Trust Asset Management
Florida
$19.6K
TC
561
Truvestments Capital
Florida
$18.7K
CPG
562
Cornerstone Planning Group
New Jersey
$17.6K
WTC
563
WhitTier Trust Company
Nevada
$17K
SJIM
564
St. Johns Investment Management
Florida
$16.3K
GAM
565
Generali Asset Management
Italy
$16.3K
PSB
566
Piscataqua Savings Bank
New Hampshire
$16.3K
PFSC
567
Peoples Financial Services Corp
Pennsylvania
$16.3K
RF
568
Rossby Financial
Florida
$16K
LI
569
LRI Investments
Florida
$15.7K
WIM
570
Westside Investment Management
California
$15.5K
OP
571
ORG Partners
Indiana
$15.1K
PWAM
572
Private Wealth Asset Management
Iowa
$13.7K
WA
573
WPG Advisers
Maryland
$13.7K
WA
574
Whipplewood Advisors
Colorado
$13.7K
AW
575
Avion Wealth
Texas
$12K