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 | $4,211,304 | -33.5% | 91,570 | -16.9% | 0.05% | -27.8% |
| Q2 2023 | $6,332,389 | +52.0% | 110,186 | -0.8% | 0.07% | +44.0% |
| Q1 2023 | $4,167,113 | +28.2% | 111,123 | -4.2% | 0.05% | +25.0% |
| Q4 2022 | $3,251,077 | +39.0% | 116,027 | +39.4% | 0.04% | +25.0% |
| Q3 2022 | $2,339,000 | +963.2% | 83,250 | +1218.5% | 0.03% | +966.7% |
| Q2 2022 | $220,000 | +15.2% | 6,314 | +18.9% | 0.00% | +50.0% |
| Q1 2022 | $191,000 | +63.2% | 5,309 | +5.5% | 0.00% | +100.0% |
| Q4 2021 | $117,000 | +24.5% | 5,034 | +2.1% | 0.00% | 0.0% |
| Q3 2021 | $94,000 | -10.5% | 4,931 | -5.4% | 0.00% | 0.0% |
| Q2 2021 | $105,000 | +18.0% | 5,215 | +6.8% | 0.00% | 0.0% |
| Q1 2021 | $89,000 | -3.3% | 4,885 | +6.9% | 0.00% | 0.0% |
| Q4 2020 | $92,000 | +10.8% | 4,570 | +3.8% | 0.00% | 0.0% |
| Q3 2020 | $83,000 | +124.3% | 4,401 | +168.2% | 0.00% | 0.0% |
| Q2 2020 | $37,000 | +68.2% | 1,641 | +8.9% | 0.00% | – |
| Q1 2020 | $22,000 | -8.3% | 1,507 | +22.7% | 0.00% | – |
| Q4 2019 | $24,000 | -4.0% | 1,228 | -4.0% | 0.00% | – |
| Q3 2019 | $25,000 | -7.4% | 1,279 | +1.5% | 0.00% | – |
| Q2 2019 | $27,000 | +35.0% | 1,260 | +26.3% | 0.00% | – |
| Q1 2019 | $20,000 | +17.6% | 998 | +15.6% | 0.00% | – |
| Q4 2018 | $17,000 | +30.8% | 863 | +31.2% | 0.00% | – |
| Q3 2018 | $13,000 | +550.0% | 658 | +398.5% | 0.00% | – |
| Q2 2018 | $2,000 | – | 132 | – | 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% |