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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
TMAM
551
Tokio Marine Asset Management
Japan
$15M
WFAG
552
Wescott Financial Advisory Group
Pennsylvania
$15M
CA
553
Cornerstone Advisors
North Carolina
$15M
BRCM
554
Bright Rock Capital Management
Massachusetts
$14.9M
SC
555
Saturna Capital
Washington
$14.8M
AWA
556
Arkadios Wealth Advisors
Georgia
$14.8M
IEFM
557
IQ EQ Fund Management
Ireland
$14.8M
RGC
558
Redwood Grove Capital
California
$14.7M
FVWA
559
Foster Victor Wealth Advisors
South Carolina
$14.7M
LSA
560
Leonteq Securities AG
Switzerland
$14.6M
SF
561
Summit Financial
New Jersey
$14.6M
EGA
562
Eagle Global Advisors
Texas
$14.6M
WAS
563
Wesleyan Assurance Society
United Kingdom
$14.6M
Dodge & Cox
564
Dodge & Cox
California
$14.5M
BSL
565
Blue Sparrow LLC
Delaware
$14.5M
MGP
566
Metis Global Partners
California
$14.5M
JC
567
JB Capital
Connecticut
$14.4M
QI
568
QV Investors
Alberta, Canada
$14.4M
ASN
569
Advisory Services Network
Georgia
$14.4M
ACIM
570
Azimuth Capital Investment Management
Michigan
$14.3M
BWS
571
Buck Wealth Strategies
Colorado
$14.3M
SIM
572
Stratos Investment Management
Ohio
$14.2M
TS
573
Triglav Skladi
Slovenia
$14.2M
DMC
574
Drexel Morgan & Co
Pennsylvania
$13.9M
BG
575
Bollard Group
Massachusetts
$13.9M