AMPHASTAR PHARMACEUTICALS IN's ticker is AMPH and the CUSIP is 03209R103. A total of 136 filers reported holding AMPHASTAR PHARMACEUTICALS IN in Q3 2020. The put-call ratio across all filers is 5.39 and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q1 2021 | $1,358,000 | -16.4% | 74,100 | -8.2% | 0.00% | 0.0% |
| Q4 2020 | $1,624,000 | +5.2% | 80,736 | -1.9% | 0.00% | 0.0% |
| Q3 2020 | $1,544,000 | -12.4% | 82,336 | +5.0% | 0.00% | -50.0% |
| Q2 2020 | $1,762,000 | +48.9% | 78,436 | -1.6% | 0.00% | +100.0% |
| Q1 2020 | $1,183,000 | -49.6% | 79,736 | -34.5% | 0.00% | -50.0% |
| Q4 2019 | $2,348,000 | +9.4% | 121,702 | +12.4% | 0.00% | 0.0% |
| Q3 2019 | $2,147,000 | +48.5% | 108,261 | +58.1% | 0.00% | 0.0% |
| Q2 2019 | $1,446,000 | -1.1% | 68,487 | -4.3% | 0.00% | 0.0% |
| Q1 2019 | $1,462,000 | +187.2% | 71,540 | +179.7% | 0.00% | +100.0% |
| Q4 2018 | $509,000 | – | 25,574 | – | 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% |