AMPHASTAR PHARMACEUTICALS IN's ticker is AMPH and the CUSIP is 03209R103. A total of 167 filers reported holding AMPHASTAR PHARMACEUTICALS IN in Q4 2021. The put-call ratio across all filers is - and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $420,579 | -25.4% | 9,145 | -6.8% | 0.03% | -25.7% |
| Q2 2023 | $563,953 | +53.3% | 9,813 | 0.0% | 0.04% | +45.8% |
| Q1 2023 | $367,987 | +16.2% | 9,813 | -13.2% | 0.02% | +20.0% |
| Q4 2022 | $316,626 | -5.2% | 11,300 | -5.0% | 0.02% | -16.7% |
| Q3 2022 | $334,000 | -19.3% | 11,900 | 0.0% | 0.02% | -14.3% |
| Q2 2022 | $414,000 | -4.2% | 11,900 | -1.2% | 0.03% | +12.0% |
| Q1 2022 | $432,000 | +54.3% | 12,045 | +0.1% | 0.02% | +56.2% |
| Q4 2021 | $280,000 | – | 12,029 | – | 0.02% | – |
Download | ||||||
Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| LAM GROUP, INC. | 130,250 | $4,884,375 | 4.79% |
| SHAKER INVESTMENTS LLC/OH | 82,253 | $3,084,488 | 1.72% |
| Mesirow Institutional Investment Management, Inc. | 325,669 | $12,212,588 | 1.33% |
| Portolan Capital Management | 340,593 | $12,772,238 | 1.22% |
| OBERWEIS ASSET MANAGEMENT INC/ | 178,200 | $6,682,500 | 1.04% |
| Granite Investment Partners, LLC | 536,821 | $20,130,788 | 0.84% |
| Capital Impact Advisors, LLC | 15,304 | $573,900 | 0.70% |
| Hillsdale Investment Management Inc. | 155,038 | $5,813,926 | 0.50% |
| GLOBEFLEX CAPITAL L P | 89,192 | $3,344,700 | 0.41% |
| Jackson Creek Investment Advisors LLC | 25,877 | $970 | 0.41% |