AMPHASTAR PHARMACEUTICALS IN's ticker is AMPH and the CUSIP is 03209R103. A total of 250 filers reported holding AMPHASTAR PHARMACEUTICALS IN in Q3 2023. The put-call ratio across all filers is 1.02 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $1,298 | -22.4% | 28,230 | -3.0% | 0.00% | 0.0% |
| Q2 2023 | $1,672 | -40.0% | 29,099 | -60.8% | 0.00% | -50.0% |
| Q1 2023 | $2,785 | -40.1% | 74,274 | -55.3% | 0.00% | -42.9% |
| Q4 2022 | $4,652 | -99.9% | 166,040 | -17.4% | 0.01% | -12.5% |
| Q3 2022 | $5,650,000 | -46.7% | 201,065 | -34.0% | 0.01% | -46.7% |
| Q2 2022 | $10,600,000 | -24.6% | 304,672 | -22.2% | 0.02% | -16.7% |
| Q1 2022 | $14,058,000 | +45.1% | 391,585 | -5.9% | 0.02% | +50.0% |
| Q4 2021 | $9,690,000 | +156.8% | 416,049 | +109.6% | 0.01% | +140.0% |
| Q3 2021 | $3,773,000 | +28.2% | 198,472 | +36.0% | 0.01% | +25.0% |
| Q2 2021 | $2,942,000 | +187.3% | 145,918 | +161.2% | 0.00% | +300.0% |
| Q1 2021 | $1,024,000 | -89.8% | 55,869 | -89.3% | 0.00% | -95.7% |
| Q4 2019 | $10,050,000 | +11.7% | 520,984 | +14.8% | 0.02% | +9.5% |
| Q3 2019 | $9,000,000 | +156.3% | 453,835 | +172.9% | 0.02% | +162.5% |
| Q2 2019 | $3,511,000 | +14.1% | 166,302 | +10.5% | 0.01% | +14.3% |
| Q1 2019 | $3,076,000 | +478.2% | 150,541 | +332.1% | 0.01% | +600.0% |
| Q2 2018 | $532,000 | – | 34,840 | – | 0.00% | – |
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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% |