Amphastar Pharmaceuticals
AMPH
AMPH
233 hedge funds and large institutions have $900M invested in Amphastar Pharmaceuticals in 2025 Q4 according to their latest regulatory filings, with 25 funds opening new positions, 95 increasing their positions, 85 reducing their positions, and 33 closing their positions.
New
Increased
Maintained
Reduced
Closed
more call options, than puts
Call options by funds: $ | Put options by funds: $
more repeat investments, than reductions
Existing positions increased: | Existing positions reduced:
more ownership
Funds ownership: →
more capital invested
Capital invested by funds: $ → $
4% less funds holding
Funds holding: 242 → 233 (-9)
24% less first-time investments, than exits
New positions opened: 25 | Existing positions closed: 33
Holders
233
Holding in Top 10
–
Calls
$739K
Puts
$217K
Top Buyers
| 1 | +$9.7M | |
| 2 | +$9.36M | |
| 3 | +$8.13M | |
| 4 |
Pacer Advisors
Malvern,
Pennsylvania
|
+$4.42M |
| 5 |
Arrowstreet Capital
Boston,
Massachusetts
|
+$4.3M |
Top Sellers
| 1 | -$10.5M | |
| 2 | -$6.9M | |
| 3 | -$6.14M | |
| 4 |
Qube Research & Technologies (QRT)
London,
United Kingdom
|
-$3.34M |
| 5 |
BNP Paribas Financial Markets
Paris,
France
|
-$2.6M |
