Call Options Transactions Made in Q4 2025 in Merck & Co., Inc. (MRK)
This table provides information about the institutional ownership of Merck & Co., Inc. (MRK) during Q4 2025. The information is specifically focused on institutions that hold call options of Merck & Co., Inc..
| Report Date | Institution (Fund) | Operation | Option | Shares change | Value Range | Shares Held | Trade History |
|---|---|---|---|---|---|---|---|
|
Jan 28, 2026
Q4 2025
|
Calamos Advisors LLC
|
BUY
|
CALL |
60KNew |
$4.95M - $5.58M
|
60K
$5.57M
|
|
|
Jan 28, 2026
Q4 2025
|
One River Asset Management, LLC
Stamford, CT |
BUY
|
CALL |
7.7K+ 296.15% |
$635K - $716K
|
10.3K
$956K
|
|
|
Jan 14, 2026
Q4 2025
|
Embree Financial Group
Chicago, IL |
BUY
|
CALL |
7.5KNew |
$619K - $697K
|
7.5K
$696K
|
|
|
Jan 12, 2026
Q4 2025
|
Davenport & CO LLC
|
BUY
|
CALL |
1.8K+ 10.78% |
$148K - $167K
|
18.5K
$1.72M
|
|
|
Jan 29, 2026
Q4 2025
|
Ubs Group Ag
|
SELL
|
CALL |
-276K- 46.79% |
$22.7M - $25.6M
|
314K
$29.1M
|
|