AMPHASTAR PHARMACEUTICALS IN's ticker is AMPH and the CUSIP is 03209R103. A total of 213 filers reported holding AMPHASTAR PHARMACEUTICALS IN in Q1 2023. The put-call ratio across all filers is 0.26 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $61,719 | -77.4% | 1,342 | -71.7% | 0.01% | -83.8% |
| Q2 2023 | $272,580 | +630.5% | 4,743 | +376.7% | 0.08% | +566.7% |
| Q1 2023 | $37,313 | -65.3% | 995 | -74.1% | 0.01% | -66.7% |
| Q4 2022 | $107,457 | +76.2% | 3,835 | +77.0% | 0.04% | +20.0% |
| Q3 2022 | $61,000 | -14.1% | 2,167 | +5.6% | 0.03% | -31.8% |
| Q2 2022 | $71,000 | -37.7% | 2,053 | -35.3% | 0.04% | -22.8% |
| Q1 2022 | $114,000 | +90.0% | 3,172 | +22.8% | 0.06% | +103.6% |
| Q4 2021 | $60,000 | – | 2,584 | – | 0.03% | – |
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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% |