3,288 hedge funds and large institutions have $159B invested in Merck in 2025 Q3 according to their latest regulatory filings, with 189 funds opening new positions, 1,344 increasing their positions, 1,419 reducing their positions, and 150 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: $ → $

1% less funds holding

Funds holding: 3,3093,288 (-21)

5% less repeat investments, than reductions

Existing positions increased: 1,344 | Existing positions reduced: 1,419

2.22% less ownership

Funds ownership: 78.27%76.05% (-2.2%)

Holders
3,288
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 -$847M
2 -$568M
3 -$443M
4
BlackRock
BlackRock
New York
-$285M
5
Goldman Sachs
Goldman Sachs
New York
-$278M
Name Holding Trade Value Shares
Change
Change in
Stake
Fifth Third Bancorp
251
Fifth Third Bancorp
Ohio
$50.4M
COPPSERS
252
Commonwealth of Pennsylvania Public School Employees Retirement System
Pennsylvania
$50.3M
SMDAM
253
Sumitomo Mitsui DS Asset Management
Japan
$50M
GAM
254
Gotham Asset Management
New York
$49.7M
PAS
255
PKS Advisory Services
New York
$49M
ProShare Advisors
256
ProShare Advisors
Maryland
$49M
RT
257
Rockland Trust
Massachusetts
$48.7M
WT
258
Whittier Trust
California
$48.1M
DK
259
DJE Kapital
Germany
$48.1M
PGFC
260
Peapack-Gladstone Financial Corp
New Jersey
$47.5M
Daiwa Securities Group
261
Daiwa Securities Group
Japan
$47.4M
ELC
262
Edgar Lomax Company
Virginia
$47M
DCP
263
Distillate Capital Partners
Illinois
$46.8M
PL
264
Perpetual Ltd
Australia
$46.5M
OAM
265
Oppenheimer Asset Management
New York
$46.5M
DADC
266
D.A. Davidson & Co
Montana
$46.4M
IMRF
267
Illinois Municipal Retirement Fund
Illinois
$46.1M
TAM
268
Tocqueville Asset Management
New York
$45.9M
ACM
269
Aquatic Capital Management
Illinois
$45.8M
KCM
270
Kornitzer Capital Management
Kansas
$45.7M
AAF
271
Andra AP-fonden
Sweden
$45.7M
GIM
272
Glenmede Investment Management
Pennsylvania
$45.3M
DLA
273
Douglas Lane & Associates
New York
$45.3M
GIA
274
Gateway Investment Advisers
Ohio
$45M
Capital Fund Management (CFM)
275
Capital Fund Management (CFM)
France
$44.8M