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 | $1,673,530 | -6.3% | 36,389 | +17.0% | 0.91% | +14.8% |
| Q2 2023 | $1,786,685 | +645.7% | 31,089 | +386.6% | 0.80% | +745.7% |
| Q1 2023 | $239,588 | -75.7% | 6,389 | -81.8% | 0.09% | -71.5% |
| Q4 2022 | $984,987 | -67.0% | 35,153 | -66.9% | 0.33% | -64.1% |
| Q3 2022 | $2,984,000 | -29.4% | 106,200 | -12.6% | 0.92% | +8.0% |
| Q2 2022 | $4,227,000 | +278.8% | 121,500 | +290.7% | 0.85% | +158.2% |
| Q1 2022 | $1,116,000 | – | 31,100 | – | 0.33% | – |
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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% |