3,244 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, 1,326 increasing their positions, 1,396 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: 1,326 | Existing positions reduced: 1,396

1% less funds holding

Funds holding: 3,2933,244 (-49)

2.24% less ownership

Funds ownership: 78.03%75.78% (-2.2%)

Holders
3,244
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
FT
301
Fiduciary Trust
Massachusetts
$36.3M
AAP
302
Arax Advisory Partners
Colorado
$36M
SSA
303
Schonfeld Strategic Advisors
New York
$35.9M
UIM
304
USS Investment Management
United Kingdom
$35.5M
SCI
305
S&CO Inc
Massachusetts
$35.5M
URS
306
Utah Retirement Systems
Utah
$34.9M
UBP
307
Union Bancaire Privee
Switzerland
$34.9M
VDI
308
Vaughan David Investments
Illinois
$34.6M
X
309
Xponance
Pennsylvania
$34.5M
SAI
310
Systematic Alpha Investments
New Jersey
$34.5M
PP
311
Prudential plc
United Kingdom
$34.4M
RG
312
Rathbones Group
United Kingdom
$34.3M
Cambridge Investment Research Advisors
313
Cambridge Investment Research Advisors
Iowa
$34.1M
PFSRSONJ
314
Police & Firemen's Retirement System of New Jersey
New Jersey
$34.1M
VMPIC
315
Varma Mutual Pension Insurance Co
Finland
$33.8M
CI
316
Conning Inc
Connecticut
$33.7M
Vontobel Holding
317
Vontobel Holding
Switzerland
$33.4M
CRC
318
Curi RMB Capital
Illinois
$33M
CIBC Private Wealth Group
319
CIBC Private Wealth Group
Georgia
$33M
QCM
320
QRG Capital Management
Illinois
$32.2M
LWCFA
321
Loring Wolcott & Coolidge Fiduciary Advisors
Massachusetts
$31.7M
HI
322
Horizon Investments
North Carolina
$31.7M
MHC
323
Meyer Handelman Company
New York
$31.7M
OSAM
324
O'Shaughnessy Asset Management
Connecticut
$31.6M
RL
325
Ruffer LLP
United Kingdom
$31M