3,294 hedge funds and large institutions have $160B invested in Merck in 2025 Q3 according to their latest regulatory filings, with 189 funds opening new positions, 1,347 increasing their positions, 1,421 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: 3,3143,294 (-20)

5% less repeat investments, than reductions

Existing positions increased: 1,347 | Existing positions reduced: 1,421

2.2% less ownership

Funds ownership: 78.35%76.15% (-2.2%)

Holders
3,294
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
Capital Fund Management (CFM)
276
Capital Fund Management (CFM)
France
$44.8M
Retirement Systems of Alabama
277
Retirement Systems of Alabama
Alabama
$44.7M
RCM
278
Radnor Capital Management
Pennsylvania
$43.7M
SCTC
279
Sanibel Captiva Trust Company
Florida
$43.7M
BBVA
280
Banco Bilbao Vizcaya Argentaria
Spain
$43.5M
BA
281
Bridgewater Associates
Connecticut
$43.1M
Calamos Advisors
282
Calamos Advisors
Illinois
$42.8M
RCM
283
RNC Capital Management
California
$42.4M
AAP
284
Aristotle Atlantic Partners
Florida
$41.7M
AG
285
AIA Group
Hong Kong
$41.6M
TG
286
TCW Group
California
$41.5M
BEI
287
Benjamin Edwards Inc
Missouri
$41.5M
FDCDDQ
288
Federation des caisses Desjardins du Quebec
Quebec, Canada
$41.2M
LA
289
LBP AM
France
$40.8M
BTW
290
Boston Trust Walden
Massachusetts
$40.3M
II
291
IFM Investors
Australia
$40M
CIBC Asset Management
292
CIBC Asset Management
Ontario, Canada
$39.9M
AB
293
Amalgamated Bank
New York
$39.9M
SC
294
SRB Corp
Massachusetts
$39.7M
P
295
&Partners
Tennessee
$39.5M
Pathstone Holdings
296
Pathstone Holdings
New Jersey
$39.1M
CSS
297
Cubist Systematic Strategies
Connecticut
$38.5M
NPA
298
Nichols & Pratt Advisers
Massachusetts
$38.2M
FMLI
299
Fukoku Mutual Life Insurance
Japan
$37.6M
BMSSC
300
B. Metzler seel. Sohn & Co
Germany
$37.5M