Institutions Holding Put Options on Merck & Co., Inc. (MRK)
This table provides information about the put option holders of Merck & Co., Inc. (MRK). We have compiled data on the institutions that hold put options on the stock, with a total of 27.7 Million put options outstanding, which have been reported (via 13F filing form) to have a value of $2.57 Billion at the end of the reported quarter. These put option holders have the right, but not the obligation, to sell AAPL shares at a specified price within a certain time frame.
| Holding | Report Date | puts Held | Holding Value (Reported) | Last Trade | Trade History |
|---|---|---|---|---|---|
|
Susquehanna International Group, LLP
Bala Cynwyd, PA |
Nov 14, 2025 Q3 2025 |
5,993,900
puts
|
$557 Million
0.06% of portfolio
|
Q3 2025
Reduced 6.69%
|
|
|
Ken Griffin
Citadel Advisors LLC | Chicago, Il
|
Nov 14, 2025 Q3 2025 |
3,885,400
puts
|
$361 Million
0.05% of portfolio
|
Q3 2025
Reduced 12.61%
|
|
|
Bank Of America Corp
Charlotte, NC |
Nov 14, 2025 Q3 2025 |
1,851,100
puts
|
$172 Million
0.01% of portfolio
|
Q3 2025
Reduced 28.65%
|
|
|
Citigroup Inc
|
Nov 10, 2025 Q3 2025 |
1,725,700
puts
|
$160 Million
0.07% of portfolio
|
Q3 2025
Added 102.64%
|
|
|
Israel Englander
Millennium Management LLC | New York, Ny
|
Nov 14, 2025 Q3 2025 |
1,595,200
puts
|
$148 Million
0.06% of portfolio
|
Q3 2025
Added 16.56%
|
|
|
Jane Street Group, LLC
New York, NY |
Nov 13, 2025 Q3 2025 |
1,250,800
puts
|
$116 Million
0.02% of portfolio
|
Q3 2025
Reduced 51.35%
|
|
|
Qube Research & Technologies LTD
London, X0 |
Nov 14, 2025 Q3 2025 |
1,199,700
puts
|
$111 Million
0.11% of portfolio
|
Q3 2025
Reduced 1.06%
|
|
|
Ubs Group Ag
|
Nov 13, 2025 Q3 2025 |
1,002,800
puts
|
$93.1 Million
0.01% of portfolio
|
Q3 2025
Added 18.83%
|
|
|
D. E. Shaw & Co., Inc.
New York, NY |
Nov 14, 2025 Q3 2025 |
914,600
puts
|
$84.9 Million
0.05% of portfolio
|
Q3 2025
Added 17.68%
|
|
|
Capital Fund Management S.A.
Paris, I0 |
Nov 13, 2025 Q3 2025 |
856,800
puts
|
$79.6 Million
0.2% of portfolio
|
Q3 2025
Reduced 20.17%
|
|
|
Black Rock Inc.
New York, NY |
Aug 13, 2024 Q2 2024 |
651,000
puts
|
$60.5 Million
0.0% of portfolio
|
Q2 2024
New holding
|
|
|
Eisler Capital (Uk) Ltd.
London, X0 |
Nov 14, 2024 Q3 2024 |
642,894
puts
|
$59.7 Million
0.34% of portfolio
|
Q3 2024
Added 30.32%
|
|
|
Hudson Bay Capital Management LP
Greenwich, CT |
Dec 15, 2025 Q3 2025 |
600,000
puts
|
$55.7 Million
0.2% of portfolio
|
Q3 2025
Reduced 16.67%
|
|
|
Wells Fargo & Company
San Francisco, CA |
Nov 13, 2025 Q3 2025 |
575,000
puts
|
$53.4 Million
0.01% of portfolio
|
Q3 2025
Added 71775.0%
|
|
|
Marshall Wace, LLP
London, X0 |
Nov 13, 2025 Q3 2025 |
518,200
puts
|
$48.1 Million
0.05% of portfolio
|
Q3 2025
Added 208.45%
|
|
|
Capstone Investment Advisors, LLC
New York, NY |
Nov 14, 2025 Q3 2025 |
434,700
puts
|
$40.4 Million
0.07% of portfolio
|
Q3 2025
Added 81.96%
|
|
|
Squarepoint Ops LLC
New York, NY |
Nov 14, 2025 Q3 2025 |
420,900
puts
|
$39.1 Million
0.04% of portfolio
|
Q3 2025
Reduced 42.14%
|
|
|
Wolverine Trading, LLC
Chicago, IL |
Nov 14, 2025 Q3 2025 |
382,600
puts
|
$35.5 Million
0.02% of portfolio
|
Q3 2025
Reduced 7.52%
|
|
|
Eisler Capital Management Ltd.
London, X0 |
Nov 13, 2025 Q3 2025 |
365,900
puts
|
$34 Million
0.14% of portfolio
|
Q3 2025
Added 312.98%
|
|
|
Walleye Trading LLC
Plymouth, MN |
Nov 14, 2025 Q3 2025 |
305,900
puts
|
$28.4 Million
0.04% of portfolio
|
Q3 2025
Added 3.48%
|
|
|
Twin Tree Management, LP
Dallas, TX |
Nov 13, 2025 Q3 2025 |
296,100
puts
|
$27.5 Million
0.11% of portfolio
|
Q3 2025
Reduced 47.49%
|
|
|
Walleye Capital LLC
Plymouth, MN |
Nov 14, 2025 Q3 2025 |
218,800
puts
|
$20.3 Million
0.08% of portfolio
|
Q3 2025
Reduced 26.9%
|
|
|
Caption Management, LLC
Oklahoma City, OK |
Nov 14, 2025 Q3 2025 |
188,600
puts
|
$17.5 Million
0.15% of portfolio
|
Q3 2025
Added 169.43%
|
|
|
Credit Agricole S A
|
Nov 14, 2025 Q3 2025 |
180,000
puts
|
$16.7 Million
0.04% of portfolio
|
Q3 2025
Added 16.13%
|
|
|
Schonfeld Strategic Advisors LLC
New York, NY |
Nov 14, 2025 Q3 2025 |
176,000
puts
|
$16.3 Million
0.1% of portfolio
|
Q3 2025
New holding
|
|