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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
SCM
526
Steadfast Capital Management
New York
$16.5M
KWM
527
Kingsview Wealth Management
Oregon
$16.5M
Loomis, Sayles & Company
528
Loomis, Sayles & Company
Massachusetts
$16.3M
AAM
529
AR Asset Management
California
$16.3M
LCM
530
Logan Capital Management
Pennsylvania
$16.3M
TF
531
Talbot Financial
Washington
$16.3M
SCA
532
Snowden Capital Advisors
New York
$16.3M
SCA
533
Stonebridge Capital Advisors
Minnesota
$16.3M
NB
534
Norinchukin Bank
Japan
$16.3M
PL
535
Parthenon LLC
Kentucky
$16.2M
AF
536
Ally Financial
Michigan
$16.1M
CIA
537
CCM Investment Advisers
South Carolina
$16.1M
CIC
538
Crawford Investment Counsel
Georgia
$16.1M
AWM
539
AE Wealth Management
Kansas
$16.1M
SCM
540
SKBA Capital Management
California
$16M
CS
541
Central Securities
New York
$15.8M
FAMI
542
Fideuram Asset Management (Ireland)
$15.8M
UCFA
543
United Capital Financial Advisors
Texas
$15.7M
WTB
544
Washington Trust Bank
Washington
$15.6M
BFA
545
Bragg Financial Advisors
North Carolina
$15.4M
MC
546
Middleton & Co
Massachusetts
$15.3M
HIMCH
547
Hartford Investment Management Co (HIMCO)
Connecticut
$15.1M
MA
548
Montag & Associates
Georgia
$15M
FSA
549
Franklin Street Advisors
North Carolina
$15M
LI
550
LMCG Investments
Massachusetts
$15M