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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
MA
1376
MJP Associates
Connecticut
$2.45M
PCM
1377
Pinnbrook Capital Management
New York
$2.45M
NG
1378
Northstar Group
New York
$2.45M
WWA
1379
WCG Wealth Advisors
Nevada
$2.45M
MCM
1380
MV Capital Management
Maryland
$2.45M
EWA
1381
EverSource Wealth Advisors
Alabama
$2.44M
RMCM
1382
Reynders McVeigh Capital Management
Massachusetts
$2.43M
CGL
1383
Clarius Group LLC
Washington
$2.43M
IA
1384
IAM Advisory
Pennsylvania
$2.43M
EP
1385
Edgestream Partners
New Jersey
$2.42M
MWM
1386
Massachusetts Wealth Management
Massachusetts
$2.42M
WIM
1387
WealthPlan Investment Management
Nebraska
$2.42M
SCP
1388
Sivia Capital Partners
California
$2.42M
BCM
1389
Birmingham Capital Management
Alabama
$2.42M
VA
1390
VestGen Advisors
Illinois
$2.41M
PMG
1391
Private Management Group
California
$2.41M
FAM
1392
Fulcrum Asset Management
United Kingdom
$2.41M
GFA
1393
Gifford Fong Associates
California
$2.41M
BC
1394
Burney Company
Virginia
$2.41M
JAG
1395
Journey Advisory Group
Kentucky
$2.4M
CCA
1396
Childress Capital Advisors
Texas
$2.4M
ZF
1397
Zhang Financial
Michigan
$2.4M
KFGK
1398
Keystone Financial Group (Kentucky)
Kentucky
$2.4M
MIA
1399
MMBG Investment Advisors
Florida
$2.39M
MBT
1400
Montecito Bank & Trust
California
$2.39M