AMPHASTAR PHARMACEUTICALS IN's ticker is AMPH and the CUSIP is 03209R103. A total of 108 filers reported holding AMPHASTAR PHARMACEUTICALS IN in Q2 2017. The put-call ratio across all filers is - and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q2 2023 | $588,435 | -72.2% | 10,239 | -81.9% | 0.02% | -74.1% |
| Q1 2023 | $2,118,900 | +109.0% | 56,504 | +56.2% | 0.06% | +100.0% |
| Q4 2022 | $1,013,904 | +36.3% | 36,185 | +36.6% | 0.03% | +11.5% |
| Q3 2022 | $744,000 | -31.8% | 26,482 | -15.6% | 0.03% | -46.9% |
| Q2 2022 | $1,091,000 | -16.5% | 31,363 | -13.8% | 0.05% | -19.7% |
| Q1 2022 | $1,307,000 | +329.9% | 36,405 | +179.1% | 0.06% | +221.1% |
| Q4 2021 | $304,000 | +32.8% | 13,042 | +4.3% | 0.02% | -9.5% |
| Q1 2021 | $229,000 | -57.5% | 12,503 | -47.9% | 0.02% | -43.2% |
| Q2 2020 | $539,000 | +36.8% | 23,980 | +20.8% | 0.04% | +8.8% |
| Q3 2019 | $394,000 | +64.2% | 19,853 | +68.9% | 0.03% | +100.0% |
| Q1 2019 | $240,000 | +57.9% | 11,754 | +12.0% | 0.02% | -10.5% |
| Q1 2017 | $152,000 | -22.8% | 10,493 | -1.6% | 0.02% | -38.7% |
| Q4 2016 | $197,000 | -51.8% | 10,669 | -68.7% | 0.03% | -35.4% |
| Q1 2016 | $409,000 | -11.1% | 34,093 | +5.6% | 0.05% | +17.1% |
| Q4 2015 | $460,000 | -43.8% | 32,300 | -30.7% | 0.04% | -55.4% |
| Q2 2015 | $819,000 | – | 46,614 | – | 0.09% | – |
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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% |