3,289 hedge funds and large institutions have $159B invested in Merck in 2025 Q3 according to their latest regulatory filings, with 189 funds opening new positions, 1,345 increasing their positions, 1,419 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: 3,3103,289 (-21)

5% less repeat investments, than reductions

Existing positions increased: 1,345 | Existing positions reduced: 1,419

2.22% less ownership

Funds ownership: 78.27%76.04% (-2.2%)

Holders
3,289
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
VCM
2451
Vivaldi Capital Management
Illinois
$420K
MHR
2452
Matthew Hamilton Rosenberg
$419K
LWM
2453
Lyell Wealth Management
California
$418K
MAM
2454
MWA Asset Management
Massachusetts
$418K
LWANC
2455
Laurel Wealth Advisors (North Carolina)
North Carolina
$418K
CSPIA
2456
Cary Street Partners Investment Advisory
Virginia
$418K
WP
2457
Westmount Partners
California
$418K
BPWM
2458
BCS Private Wealth Management
New Jersey
$417K
CPBTD
2459
Central Pacific Bank - Trust Division
Hawaii
$417K
ICA
2460
Infrastructure Capital Advisors
New York
$416K
SAM
2461
S.A. Mason
Michigan
$416K
GIM
2462
Groesbeck Investment Management
New Jersey
$416K
ORC
2463
O'Rourke & Company
Massachusetts
$416K
BDF
2464
Black Diamond Financial
Maryland
$416K
NPFS
2465
Novak & Powell Financial Services
Florida
$414K
BSC
2466
BRIGHTON SECURITIES CORP.
New York
$414K
CPRC
2467
Consolidated Portfolio Review Corp
New York
$413K
MC
2468
Mathes Company
New York
$413K
PAW
2469
Plan A Wealth
Nebraska
$413K
IP
2470
Investment Partners
Ohio
$413K
RGC
2471
Roberts, Glore & Co
Illinois
$413K
WIM
2472
Warwick Investment Management
Texas
$412K
SIC
2473
Sigma Investment Counselors
Michigan
$411K
CPSC
2474
Carl P. Sherr & Co
Massachusetts
$411K
BAM
2475
Boyar Asset Management
New York
$411K