AMPHASTAR PHARMACEUTICALS IN's ticker is and the CUSIP is 03209R903. A total of 2 filers reported holding AMPHASTAR PHARMACEUTICALS IN in Q1 2023. The put-call ratio across all filers is - and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $82,782 | +188.1% | 1,800 | +260.0% | 0.00% | – |
| Q2 2023 | $28,735 | +241.8% | 500 | +66.7% | 0.00% | – |
| Q4 2022 | $8,406 | -40.0% | 300 | -40.0% | 0.00% | – |
| Q3 2022 | $14,000 | -84.4% | 500 | -80.8% | 0.00% | – |
| Q2 2022 | $90,000 | +260.0% | 2,600 | +271.4% | 0.00% | – |
| Q1 2022 | $25,000 | -75.2% | 700 | -86.8% | 0.00% | -100.0% |
| Q3 2016 | $101,000 | +152.5% | 5,300 | +112.0% | 0.00% | – |
| Q2 2016 | $40,000 | – | 2,500 | – | 0.00% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | 0 | $0 | 0.00% |
| SIMPLEX TRADING, LLC | 1,400 | $52 | 0.00% |