Put Options Transactions Made in Q3 2021 in Mersana Therapeutics, Inc. (MRSN)
This table provides information about the institutional ownership of Mersana Therapeutics, Inc. (MRSN) during Q3 2021. The information is specifically focused on institutions that hold put options of Mersana Therapeutics, Inc..
| Report Date | Institution (Fund) | Operation | Option | Shares change | Value Range | Shares Held | Trade History |
|---|---|---|---|---|---|---|---|
|
Nov 16, 2021
Q3 2021
|
Jane Street Group, LLC
New York, NY |
BUY
|
PUT |
52.2KNew |
$447K - $755K
|
52.2K
$116K
|
|
|
Nov 15, 2021
Q3 2021
|
D. E. Shaw & Co., Inc.
New York, NY |
BUY
|
PUT |
50KNew |
$428K - $724K
|
50K
$111K
|
|
|
Nov 15, 2021
Q3 2021
|
Parallax Volatility Advisers, L.P.
San Francisco, CA |
BUY
|
PUT |
9KNew |
$77K - $130K
|
9K
$20K
|
|
|
Nov 12, 2021
Q3 2021
|
Cowen And Company, LLC
|
SELL
|
PUT |
-25KClosed |
$214K - $362K
|
0
$0
|
|
|
Nov 12, 2021
Q3 2021
|
Caption Management, LLC
Oklahoma City, OK |
SELL
|
PUT |
-87.5KClosed |
$749K - $1.27M
|
0
$0
|