3,253 hedge funds and large institutions have $159B invested in Merck in 2025 Q3 according to their latest regulatory filings, with 191 funds opening new positions, 1,331 increasing their positions, 1,399 reducing their positions, and 147 closing their positions.

New
Increased
Maintained
Reduced
Closed

more first-time investments, than exits

New positions opened: | Existing positions closed:

more call options, than puts

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

more funds holding in top 10

Funds holding in top 10:

more capital invested

Capital invested by funds: $ → $

5% less repeat investments, than reductions

Existing positions increased: 1,331 | Existing positions reduced: 1,399

1% less funds holding

Funds holding: 3,2963,253 (-43)

2.2% less ownership

Funds ownership: 78.07%75.87% (-2.2%)

Holders
3,253
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
46
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$2.83B
Puts
$2.51B
Net Calls
Net Calls Change

Top Sellers

1 -$863M
2 -$579M
3 -$452M
4
BlackRock
BlackRock
New York
-$291M
5
Goldman Sachs
Goldman Sachs
New York
-$283M
Name Holding Trade Value Shares
Change
Change in
Stake
OSAM
326
O'Shaughnessy Asset Management
Connecticut
$31.6M
RL
327
Ruffer LLP
United Kingdom
$31M
Kovitz Investment Group Partners
328
Kovitz Investment Group Partners
Illinois
$30.9M
GT
329
Glenview Trust
Kentucky
$30.8M
CIA
330
Capital Investment Advisors
Georgia
$30.5M
MGP
331
M&G plc
United Kingdom
$30.5M
BCIM
332
British Columbia Investment Management
British Columbia, Canada
$30.3M
Lido Advisors
333
Lido Advisors
California
$30.3M
Federated Hermes
334
Federated Hermes
Pennsylvania
$30.3M
MAM
335
Martingale Asset Management
Massachusetts
$30.2M
TI
336
Tidal Investments
Wisconsin
$30M
LGF
337
LGT Group Foundation
Liechtenstein
$29.9M
LBA
338
Letko, Brosseau & Associates
Quebec, Canada
$29.7M
BPCE
339
Bank Pictet & Cie (Europe)
Germany
$29.3M
NIM
340
NEOS Investment Management
Connecticut
$29.2M
CA
341
Commerzbank Aktiengesellschaft
Germany
$29.1M
Public Sector Pension Investment Board (PSP Investments)
342
Public Sector Pension Investment Board (PSP Investments)
Quebec, Canada
$29.1M
MML Investors Services
343
MML Investors Services
Massachusetts
$29M
CS
344
Cannell & Spears
New York
$29M
CBU
345
CIBC Bancorp USA
Illinois
$29M
NA
346
NewEdge Advisors
Louisiana
$28.6M
WPC
347
Waters Parkerson & Co
Louisiana
$28.6M
GAM
348
Generali Asset Management
Italy
$28.6M
AAM
349
Advisors Asset Management
Colorado
$28.6M
NYLIM
350
New York Life Investment Management
New York
$28.5M