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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
P
276
&Partners
Tennessee
$53M
OAM
277
Oppenheimer Asset Management
New York
$52.9M
JFG
278
Jefferies Financial Group
New York
$52.7M
AAP
279
Aristotle Atlantic Partners
Florida
$52.3M
Daiwa Securities Group
280
Daiwa Securities Group
Japan
$51.8M
TAM
281
Tocqueville Asset Management
New York
$51.8M
FDCDDQ
282
Federation des caisses Desjardins du Quebec
Quebec, Canada
$50.9M
SC
283
SRB Corp
Massachusetts
$49.8M
BEI
284
Benjamin Edwards Inc
Missouri
$49.7M
BBVA
285
Banco Bilbao Vizcaya Argentaria
Spain
$49.6M
Pathstone Holdings
286
Pathstone Holdings
New Jersey
$49.5M
OSAM
287
O'Shaughnessy Asset Management
Connecticut
$49.4M
BMSSC
288
B. Metzler seel. Sohn & Co
Germany
$49.1M
BTW
289
Boston Trust Walden
Massachusetts
$49M
AA
290
ALPS Advisors
Colorado
$49M
AB
291
Amalgamated Bank
New York
$48.9M
CLGM
292
Capitolis Liquid Global Markets
New York
$48.5M
NPA
293
Nichols & Pratt Advisers
Massachusetts
$47.5M
GAM
294
Gotham Asset Management
New York
$47.1M
FMLI
295
Fukoku Mutual Life Insurance
Japan
$47.1M
PA
296
Pinnacle Associates
New York
$47M
CRC
297
Curi RMB Capital
Illinois
$47M
DCP
298
Distillate Capital Partners
Illinois
$46.8M
BCIM
299
British Columbia Investment Management
British Columbia, Canada
$46.7M
IMPI
300
Ilmarinen Mutual Pension Insurance
Finland
$46.5M