Amphastar Pharmaceuticals
AMPH
AMPH
241 hedge funds and large institutions have $751M invested in Amphastar Pharmaceuticals in 2025 Q2 according to their latest regulatory filings, with 43 funds opening new positions, 91 increasing their positions, 73 reducing their positions, and 40 closing their positions.
New
Increased
Maintained
Reduced
Closed
Holders
241
Holders Change
–
Holders Change %
0%
% of All Funds
3.23%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
43
Increased
91
Reduced
73
Closed
40
Calls
$447K
Puts
$381K
Net Calls
+$66K
Net Calls Change
-$235K
Top Buyers
| 1 |
Royal Bank of Canada
Toronto,
Ontario, Canada
|
+$6.72M |
| 2 |
Dimensional Fund Advisors
Austin,
Texas
|
+$6.21M |
| 3 |
D.E. Shaw & Co
New York
|
+$6.08M |
| 4 |
Vanguard Group
Malvern,
Pennsylvania
|
+$6.06M |
| 5 |
Qube Research & Technologies (QRT)
London,
United Kingdom
|
+$4.83M |
Top Sellers
| 1 |
Federated Hermes
Pittsburgh,
Pennsylvania
|
-$13.2M |
| 2 |
Boston Partners
Boston,
Massachusetts
|
-$11.9M |
| 3 |
BlackRock
New York
|
-$11M |
| 4 |
GIP
Granite Investment Partners
El Segundo,
California
|
-$10.9M |
| 5 |
ECM
ExodusPoint Capital Management
New York
|
-$7.14M |
