AMPHASTAR PHARMACEUTICALS IN's ticker is AMPH and the CUSIP is 03209R103. A total of 204 filers reported holding AMPHASTAR PHARMACEUTICALS IN in Q1 2022. The put-call ratio across all filers is 16.41 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $760,813 | +17.0% | 16,543 | -28.7% | 0.10% | +28.9% |
| Q4 2022 | $650,428 | -46.7% | 23,213 | -46.6% | 0.08% | -20.0% |
| Q3 2022 | $1,221,000 | -46.9% | 43,450 | -34.3% | 0.10% | -49.7% |
| Q2 2022 | $2,300,000 | +158.1% | 66,113 | +166.4% | 0.19% | +152.0% |
| Q1 2022 | $891,000 | +83.0% | 24,813 | +18.8% | 0.08% | +74.4% |
| Q4 2021 | $487,000 | +3.2% | 20,891 | -15.9% | 0.04% | -24.6% |
| Q3 2021 | $472,000 | +68.6% | 24,850 | +78.6% | 0.06% | +32.6% |
| Q2 2021 | $280,000 | – | 13,910 | – | 0.04% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| FRIESS ASSOCIATES LLC | 97,760 | $3,401,000 | 5.68% |
| Nantahala Capital Management | 1,000,000 | $34,790,000 | 1.74% |
| MESIROW FINANCIAL INVESTMENT MANAGEMENT - Fixed Income | 341,294 | $11,874,000 | 1.52% |
| Portolan Capital Management | 274,889 | $9,563,000 | 0.96% |
| Quantedge Capital Pte Ltd | 121,500 | $4,227,000 | 0.85% |
| SHAKER INVESTMENTS LLC/OH | 37,117 | $1,291,000 | 0.82% |
| GLOBEFLEX CAPITAL L P | 72,253 | $2,514,000 | 0.61% |
| EAM Investors, LLC | 68,855 | $2,395,000 | 0.58% |
| Hillsdale Investment Management Inc. | 197,738 | $6,879,000 | 0.55% |
| Capital Impact Advisors, LLC | 13,835 | $481,000 | 0.44% |