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Amphastar Pharmaceuticals
AMPH
AMPH
215 hedge funds and large institutions have $634M invested in Amphastar Pharmaceuticals in 2026 Q1 according to their latest regulatory filings, with 30 funds opening new positions, 68 increasing their positions, 95 reducing their positions, and 44 closing their positions.
New
Increased
Maintained
Reduced
Closed
more call options, than puts
Call options by funds: $ | Put options by funds: $
less ownership
Funds ownership: →
less funds holding
Funds holding: →
less repeat investments, than reductions
Existing positions increased: | Existing positions reduced:
30% less capital invested
Capital invested by funds: $900M → $634M (-$266M)
32% less first-time investments, than exits
New positions opened: 30 | Existing positions closed: 44
Holders
215
Holding in Top 10
–
Calls
$1.87M
Puts
$33K
Top Buyers
| 1 | +$13.2M | |
| 2 | +$8.62M | |
| 3 | +$5.58M | |
| 4 |
UBS Group
Zurich,
Switzerland
|
+$4M |
| 5 |
Franklin Resources
San Mateo,
California
|
+$2.77M |
Top Sellers
| 1 | -$10.8M | |
| 2 | -$10.3M | |
| 3 | -$8.5M | |
| 4 |
Arrowstreet Capital
Boston,
Massachusetts
|
-$5.73M |
| 5 |
EIP
Epoch Investment Partners
New York
|
-$5.57M |
