3,273 hedge funds and large institutions have $159B invested in Merck in 2025 Q3 according to their latest regulatory filings, with 190 funds opening new positions, 1,338 increasing their positions, 1,410 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: 3,3023,273 (-29)

5% less repeat investments, than reductions

Existing positions increased: 1,338 | Existing positions reduced: 1,410

2.19% less ownership

Funds ownership: 78.17%75.98% (-2.2%)

Holders
3,273
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
CIM
301
Corda Investment Management
Texas
$37M
KBG
302
Kahn Brothers Group
New York
$36.4M
IMPI
303
Ilmarinen Mutual Pension Insurance
Finland
$36.3M
PI
304
PineBridge Investments
New York
$36.3M
FT
305
Fiduciary Trust
Massachusetts
$36.3M
AAP
306
Arax Advisory Partners
Colorado
$36M
SSA
307
Schonfeld Strategic Advisors
New York
$35.9M
UIM
308
USS Investment Management
United Kingdom
$35.5M
SCI
309
S&CO Inc
Massachusetts
$35.5M
URS
310
Utah Retirement Systems
Utah
$34.9M
UBP
311
Union Bancaire Privee
Switzerland
$34.9M
VDI
312
Vaughan David Investments
Illinois
$34.6M
X
313
Xponance
Pennsylvania
$34.5M
SAI
314
Systematic Alpha Investments
New Jersey
$34.5M
PP
315
Prudential plc
United Kingdom
$34.4M
RG
316
Rathbones Group
United Kingdom
$34.3M
Cambridge Investment Research Advisors
317
Cambridge Investment Research Advisors
Iowa
$34.1M
PFSRSONJ
318
Police & Firemen's Retirement System of New Jersey
New Jersey
$34.1M
VMPIC
319
Varma Mutual Pension Insurance Co
Finland
$33.8M
CI
320
Conning Inc
Connecticut
$33.7M
Vontobel Holding
321
Vontobel Holding
Switzerland
$33.4M
CRC
322
Curi RMB Capital
Illinois
$33M
CIBC Private Wealth Group
323
CIBC Private Wealth Group
Georgia
$33M
QCM
324
QRG Capital Management
Illinois
$32.2M
LWCFA
325
Loring Wolcott & Coolidge Fiduciary Advisors
Massachusetts
$31.7M