Amphastar Pharmaceuticals... (AMPH)
NASDAQ: AMPH
· Real-Time Price · USD
29.87
-0.34 (-1.13%)
At close: Aug 15, 2025, 3:59 PM
29.83
-0.13%
After-hours: Aug 15, 2025, 07:19 PM EDT
13F Institute Ownership
Total Institutes of 243 in Amphastar Pharmaceuticals reduced their positions with a decrease of 23 investors compared to the previous quarter. A reduction of 2.15M shares, as total invested capital declined by $355.95M with ownership percentage dropping from 72.84% to 69.81%.
Options Activity
Institutions are holding more Calls Contracts as Puts Contracts, indicating a bullish sentiment.
Put/Call 0.558
0.56
Call Flow 20,800
64%
Put Flow 11,600
36%
Top Shareholders
| Institute | Ownership | Shares | Shares % Change | Market Value | Portfolio | Filing Date |
|---|---|---|---|---|---|---|
| Blackrock, Inc. | 12.90% | 6.15M | +0.49% | 178.22M | < 0.01% | May 02, 2025 |
| Vanguard Group Inc | 5.09% | 2.42M | -10.75% | 70.24M | < 0.01% | May 09, 2025 |
| Td Asset Management Inc | 4.64% | 2.21M | +20.21% | 64.13M | 0.06% | May 07, 2025 |
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