AMPHASTAR PHARMACEUTICALS IN's ticker is AMPH and the CUSIP is 03209R103. A total of 91 filers reported holding AMPHASTAR PHARMACEUTICALS IN in Q3 2015. The put-call ratio across all filers is - and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $504 | -16.1% | 10,967 | +4.8% | 0.00% | -25.0% |
| Q2 2023 | $601 | +34.5% | 10,460 | -12.2% | 0.00% | +33.3% |
| Q1 2023 | $447 | -59.6% | 11,911 | -69.8% | 0.00% | -62.5% |
| Q4 2022 | $1,107 | -99.9% | 39,494 | -19.7% | 0.01% | -20.0% |
| Q3 2022 | $1,381,000 | +456.9% | 49,156 | +590.5% | 0.01% | +400.0% |
| Q2 2022 | $248,000 | -12.7% | 7,119 | -10.1% | 0.00% | +100.0% |
| Q1 2022 | $284,000 | +17.4% | 7,917 | -36.9% | 0.00% | -50.0% |
| Q4 2017 | $242,000 | +195.1% | 12,555 | +148.2% | 0.00% | +100.0% |
| Q2 2016 | $82,000 | +64.0% | 5,059 | +21.7% | 0.00% | – |
| Q1 2016 | $50,000 | +13.6% | 4,158 | +33.0% | 0.00% | – |
| Q4 2015 | $44,000 | -8.3% | 3,126 | -24.1% | 0.00% | – |
| Q3 2015 | $48,000 | +108.7% | 4,120 | +215.7% | 0.00% | – |
| Q2 2015 | $23,000 | – | 1,305 | – | 0.00% | – |
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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% |