3,250 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, 1,329 increasing their positions, 1,398 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: 1,329 | Existing positions reduced: 1,398

1% less funds holding

Funds holding: 3,2953,250 (-45)

2.21% less ownership

Funds ownership: 78.03%75.82% (-2.2%)

Holders
3,250
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
BBVA
276
Banco Bilbao Vizcaya Argentaria
Spain
$43.5M
BA
277
Bridgewater Associates
Connecticut
$43.1M
Calamos Advisors
278
Calamos Advisors
Illinois
$42.8M
RCM
279
RNC Capital Management
California
$42.4M
AAP
280
Aristotle Atlantic Partners
Florida
$41.7M
TG
281
TCW Group
California
$41.5M
BEI
282
Benjamin Edwards Inc
Missouri
$41.5M
FDCDDQ
283
Federation des caisses Desjardins du Quebec
Quebec, Canada
$41.2M
LA
284
LBP AM
France
$40.8M
BTW
285
Boston Trust Walden
Massachusetts
$40.3M
II
286
IFM Investors
Australia
$40M
CIBC Asset Management
287
CIBC Asset Management
Ontario, Canada
$39.9M
AB
288
Amalgamated Bank
New York
$39.9M
SC
289
SRB Corp
Massachusetts
$39.7M
P
290
&Partners
Tennessee
$39.5M
Pathstone Holdings
291
Pathstone Holdings
New Jersey
$39.1M
CSS
292
Cubist Systematic Strategies
Connecticut
$38.5M
NPA
293
Nichols & Pratt Advisers
Massachusetts
$38.2M
FMLI
294
Fukoku Mutual Life Insurance
Japan
$37.6M
BMSSC
295
B. Metzler seel. Sohn & Co
Germany
$37.5M
TLP
296
Tri Locum Partners
New York
$37.5M
PA
297
Pinnacle Associates
New York
$37.2M
CIM
298
Corda Investment Management
Texas
$37M
KBG
299
Kahn Brothers Group
New York
$36.4M
IMPI
300
Ilmarinen Mutual Pension Insurance
Finland
$36.3M