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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
EA
376
Emerald Advisers
Pennsylvania
$633K
S
377
SignatureFD
Georgia
$622K
GA
378
GraniteShares Advisors
New York
$619K
MFG
379
Merit Financial Group
Georgia
$616K
QC
380
Quadrature Capital
United Kingdom
$615K
SFI
381
Siemens Fonds Invest
Germany
$601K
VAS
382
Vestmark Advisory Solutions
Massachusetts
$567K
WPC
383
Wedmont Private Capital
Pennsylvania
$565K
OC
384
Oppenheimer & Co
New York
$560K
PS
385
Principal Securities
Iowa
$559K
FSA
386
Fort Sheridan Advisors
Illinois
$555K
VSQM
387
V-Square Quantitative Management
Illinois
$552K
WSFS
388
Wilmington Savings Fund Society
Delaware
$550K
KCM
389
Kennedy Capital Management
Missouri
$544K
BP
390
Ballentine Partners
Massachusetts
$527K
SBFM
391
S-Bank Fund Management
Finland
$526K
CCM
392
Coldstream Capital Management
Washington
$522K
UCFA
393
United Capital Financial Advisors
Texas
$514K
YCM
394
Yousif Capital Management
Michigan
$511K
FFM
395
Forum Financial Management
Illinois
$507K
EC
396
EntryPoint Capital
New York
$505K
LWCFA
397
Loring Wolcott & Coolidge Fiduciary Advisors
Massachusetts
$500K
QCM
398
Qsemble Capital Management
New York
$499K
P
399
&Partners
Tennessee
$498K
HNWAG
400
High Net Worth Advisory Group
Florida
$489K