AMPHASTAR PHARMACEUTICALS IN's ticker is and the CUSIP is 03209R953. A total of 1 filers reported holding AMPHASTAR PHARMACEUTICALS IN in Q4 2020. The put-call ratio across all filers is - and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $22 | +22.2% | 500 | 0.0% | 0.00% | – |
| Q1 2023 | $18 | -70.5% | 500 | -77.3% | 0.00% | – |
| Q4 2022 | $61 | -99.9% | 2,200 | 0.0% | 0.00% | – |
| Q3 2022 | $61,000 | -18.7% | 2,200 | +4.8% | 0.00% | – |
| Q1 2022 | $75,000 | +400.0% | 2,100 | +26150.0% | 0.00% | – |
| Q3 2020 | $15,000 | +650.0% | 8 | +700.0% | 0.00% | – |
| Q2 2020 | $2,000 | -75.0% | 1 | -96.6% | 0.00% | – |
| Q3 2017 | $8,000 | -50.0% | 29 | -63.3% | 0.00% | -100.0% |
| Q2 2017 | $16,000 | – | 79 | – | 0.00% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | 0 | $0 | 0.00% |