Put Options Transactions Made in Q3 2021 in Alector, Inc. (ALEC)
This table provides information about the institutional ownership of Alector, Inc. (ALEC) during Q3 2021. The information is specifically focused on institutions that hold put options of Alector, 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 |
37.3K+ 96.13% |
$808K - $1.47M
|
76.1K
$137K
|
|
|
Oct 26, 2021
Q3 2021
|
Cutler Group LP
|
BUY
|
PUT |
5.1K+ 5100.0% |
$110K - $201K
|
5.2K
$9.36K
|
|
|
Nov 15, 2021
Q3 2021
|
Ikarian Capital, LLC
Dallas, TX |
SELL
|
PUT |
-22.3KClosed |
$483K - $881K
|
0
$0
|