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
LCM
2451
Lazari Capital Management
California
$421K
BFIC
2452
Bedell Frazier Investment Counselling
California
$421K
MHC
2453
May Hill Capital
Massachusetts
$421K
MCA
2454
Magnolia Capital Advisors
Mississippi
$420K
VCM
2455
Vivaldi Capital Management
Illinois
$420K
MHR
2456
Matthew Hamilton Rosenberg
$419K
LWM
2457
Lyell Wealth Management
California
$418K
MAM
2458
MWA Asset Management
Massachusetts
$418K
LWANC
2459
Laurel Wealth Advisors (North Carolina)
North Carolina
$418K
CSPIA
2460
Cary Street Partners Investment Advisory
Virginia
$418K
WP
2461
Westmount Partners
California
$418K
BPWM
2462
BCS Private Wealth Management
New Jersey
$417K
CPBTD
2463
Central Pacific Bank - Trust Division
Hawaii
$417K
ICA
2464
Infrastructure Capital Advisors
New York
$416K
SAM
2465
S.A. Mason
Michigan
$416K
GIM
2466
Groesbeck Investment Management
New Jersey
$416K
ORC
2467
O'Rourke & Company
Massachusetts
$416K
BDF
2468
Black Diamond Financial
Maryland
$416K
NPFS
2469
Novak & Powell Financial Services
Florida
$414K
CPRC
2470
Consolidated Portfolio Review Corp
New York
$413K
MC
2471
Mathes Company
New York
$413K
PAW
2472
Plan A Wealth
Nebraska
$413K
IP
2473
Investment Partners
Ohio
$413K
RGC
2474
Roberts, Glore & Co
Illinois
$413K
WIM
2475
Warwick Investment Management
Texas
$412K