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3,648 hedge funds and large institutions have $207B invested in Merck in 2025 Q4 according to their latest regulatory filings, with 544 funds opening new positions, 1,372 increasing their positions, 1,398 reducing their positions, and 131 closing their positions.

New
Increased
Maintained
Reduced
Closed

more first-time investments, than exits

New positions opened: | Existing positions closed:

more funds holding in top 10

Funds holding in top 10:

more call options, than puts

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

more capital invested

Capital invested by funds: $ → $

10% more funds holding

Funds holding: 3,3073,648 (+341)

2.9% more ownership

Funds ownership: 76.23%79.13% (+2.9%)

2% less repeat investments, than reductions

Existing positions increased: 1,372 | Existing positions reduced: 1,398

Holders
3,648
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
77
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$3.76B
Puts
$2.62B
Net Calls
Net Calls Change

Top Buyers

1 +$1.05B
2 +$696M
3 +$567M
4
Citadel Advisors
Citadel Advisors
Florida
+$549M
5
Jennison Associates
Jennison Associates
New York
+$522M
Name Holding Trade Value Shares
Change
Change in
Stake
DP
451
Dearborn Partners
Illinois
$23.2M
UAS
452
United Asset Strategies
New York
$22.9M
CFB
453
Cullen/Frost Bankers
Texas
$22.7M
EB
454
Eastern Bank
Massachusetts
$22.4M
HA
455
Homestead Advisers
Virginia
$22.4M
RAM
456
RWC Asset Management
United Kingdom
$22.4M
AF
457
Allworth Financial
California
$22.3M
SFM
458
Stack Financial Management
Montana
$22.1M
FLPIM
459
F.L. Putnam Investment Management
Massachusetts
$22.1M
ACA
460
Aptus Capital Advisors
Alabama
$21.8M
CSP
461
Cary Street Partners
Virginia
$21.8M
LOAME
462
Lombard Odier Asset Management (Europe)
United Kingdom
$21.6M
GAI
463
General American Investors
New York
$21.5M
BCAM
464
Boston Common Asset Management
Massachusetts
$21.4M
SDIC
465
South Dakota Investment Council
South Dakota
$21.3M
FNT
466
First National Trust
Pennsylvania
$21.2M
TH
467
TCTC Holdings
Texas
$21.2M
DT
468
Diversified Trust
Tennessee
$21.1M
Empower Advisory Group
469
Empower Advisory Group
Colorado
$20.9M
AHB
470
Abner Herrman & Brock
New Jersey
$20.9M
PR
471
Payden & Rygel
California
$20.9M
FISPB
472
Fideuram - Intesa Sanpaolo Private Banking
$20.7M
SWP
473
Stratos Wealth Partners
Ohio
$20.7M
HP
474
HealthInvest Partners
Sweden
$20.6M
EWA
475
EP Wealth Advisors
California
$20.6M