Put Options Transactions Made in Q3 2025 in Amphastar Pharmaceuticals, Inc. (AMPH)
This table provides information about the institutional ownership of Amphastar Pharmaceuticals, Inc. (AMPH) during Q3 2025. The information is specifically focused on institutions that hold put options of Amphastar Pharmaceuticals, Inc..
| Report Date | Institution (Fund) | Operation | Option | Shares change | Value Range | Shares Held | Trade History |
|---|---|---|---|---|---|---|---|
|
Oct 28, 2025
Q3 2025
|
Wolverine Asset Management LLC
|
BUY
|
PUT |
400+ 133.33% |
$8.25K - $12.3K
|
700
$18.2K
|
|
|
Nov 14, 2025
Q3 2025
|
Ken Griffin
Citadel Advisors LLC | Chicago, Il
|
SELL
|
PUT |
-400- 3.25% |
$8.25K - $12.3K
|
11.9K
$310K
|