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Alnylam Pharmaceuticals
ALNY

Overview Fund Activity

617 hedge funds and large institutions have $34.2B invested in Alnylam Pharmaceuticals in 2025 Q1 according to their latest regulatory filings, with 107 funds opening new positions, 236 increasing their positions, 197 reducing their positions, and 67 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
617
Holders Change
+32
Holders Change %
+5.47%
% of All Funds
8.38%
Holding in Top 10
10
Holding in Top 10 Change
+6
Holding in Top 10 Change %
+150%
% of All Funds
0.14%
New
107
Increased
236
Reduced
197
Closed
67
Calls
$274M
Puts
$238M
Net Calls
+$35.4M
Net Calls Change
+$6.38M

Top Buyers

1
Fidelity Investments
Fidelity Investments
Massachusetts
+$493M
2
Bank of America
Bank of America
North Carolina
+$174M
3
Invesco
Invesco
Georgia
+$95.9M
4
Vanguard Group
Vanguard Group
Pennsylvania
+$87.3M
5
Point72 Asset Management
Point72 Asset Management
Connecticut
+$81.2M

Top Sellers

1
Wellington Management Group
Wellington Management Group
Massachusetts
-$428M
2
Capital International Investors
Capital International Investors
California
-$334M
3
Baillie Gifford & Co
Baillie Gifford & Co
United Kingdom
-$103M
4
BlackRock
BlackRock
New York
-$88M
5
Corient Private Wealth
Corient Private Wealth
Florida
-$63.7M
Name Holding Trade Value Shares
Change 		Shares
Change %
NYLIM
376
New York Life Investment Management
New York
$598K -$45.9K -170 -7%
AWM
377
Accurate Wealth Management
Florida
$590K +$590K +2,483 New
CF
378
Corebridge Financial
Texas
$575K -$21.9K -81 -4%
MWA
379
Monograph Wealth Advisors
California
$574K -$3.24K -12 -0.6%
GA
380
GraniteShares Advisors
New York
$570K -$41.9K -155 -7%
SI
381
Sava Infond
Slovenia
$562K +$94.5K +350 +20%
PP
382
Prudential plc
United Kingdom
$553K -$603K -2,233 -52%
ACS
383
Archford Capital Strategies
Illinois
$545K +$545K +2,019 New
SNBOSD
384
Security National Bank of So Dak
Iowa
$540K – – –
KCM
385
Kornitzer Capital Management
Kansas
$540K +$540K +2,000 New
MYAM
386
Meiji Yasuda Asset Management
Japan
$536K – – –
QCM
387
QRG Capital Management
Illinois
$526K +$260K +964 +98%
EI
388
Ethic Inc
New York
$523K -$727K -2,843 -58%
GCM
389
Graham Capital Management
Connecticut
$516K -$119K -440 -19%
CGPCS
390
Capital Group Private Client Services
California
$501K -$10.7M -39,669 -96%
STA
391
Summit Trail Advisors
New York
$487K +$140K +518 +40%
SFA
392
Souders Financial Advisors
Ohio
$484K -$256K -947 -35%
EFG
393
Everhart Financial Group
Ohio
$483K +$51.6K +191 +12%
SBFM
394
S-Bank Fund Management
Finland
$475K +$475K +1,760 New
S
395
SignatureFD
Georgia
$474K +$31.1K +115 +7%
OC
396
Oppenheimer & Co
New York
$463K – – –
PD
397
Point72 (DIFC)
United Arab Emirates
$462K +$462K +1,712 New
LAM
398
LECAP Asset Management
United Kingdom
$461K +$461K +1,709 New
FSA
399
Fort Sheridan Advisors
Illinois
$459K – – –
Vontobel Holding
400
Vontobel Holding
Switzerland
$457K -$30.5K -113 -6%
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