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
MHR
2426
Matthew Hamilton Rosenberg
$419K
LWM
2427
Lyell Wealth Management
California
$418K
MAM
2428
MWA Asset Management
Massachusetts
$418K
LWANC
2429
Laurel Wealth Advisors (North Carolina)
North Carolina
$418K
CSPIA
2430
Cary Street Partners Investment Advisory
Virginia
$418K
WP
2431
Westmount Partners
California
$418K
BPWM
2432
BCS Private Wealth Management
New Jersey
$417K
CPBTD
2433
Central Pacific Bank - Trust Division
Hawaii
$417K
ICA
2434
Infrastructure Capital Advisors
New York
$416K
SAM
2435
S.A. Mason
Michigan
$416K
GIM
2436
Groesbeck Investment Management
New Jersey
$416K
ORC
2437
O'Rourke & Company
Massachusetts
$416K
BDF
2438
Black Diamond Financial
Maryland
$416K
NPFS
2439
Novak & Powell Financial Services
Florida
$414K
CPRC
2440
Consolidated Portfolio Review Corp
New York
$413K
MC
2441
Mathes Company
New York
$413K
PAW
2442
Plan A Wealth
Nebraska
$413K
IP
2443
Investment Partners
Ohio
$413K
RGC
2444
Roberts, Glore & Co
Illinois
$413K
WIM
2445
Warwick Investment Management
Texas
$412K
SIC
2446
Sigma Investment Counselors
Michigan
$411K
CPSC
2447
Carl P. Sherr & Co
Massachusetts
$411K
BAM
2448
Boyar Asset Management
New York
$411K
JCM
2449
Jacobsen Capital Management
Utah
$410K
SC
2450
Summa Corp
Texas
$410K