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 | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $778,389 | +43.2% | 16,925 | +79.0% | 0.00% | – |
| Q2 2023 | $543,494 | +59.7% | 9,457 | +4.2% | 0.00% | – |
| Q1 2023 | $340,388 | +61.3% | 9,077 | +50.0% | 0.00% | – |
| Q2 2022 | $211,000 | -11.3% | 6,053 | -8.6% | 0.00% | – |
| Q1 2022 | $238,000 | +4660.0% | 6,621 | +2527.4% | 0.00% | – |
| Q2 2017 | $5,000 | +25.0% | 252 | -6.7% | 0.00% | – |
| Q1 2017 | $4,000 | 0.0% | 270 | +39.9% | 0.00% | – |
| Q4 2016 | $4,000 | -97.4% | 193 | -98.0% | 0.00% | -100.0% |
| Q2 2016 | $155,000 | +34.8% | 9,622 | 0.0% | 0.00% | – |
| Q1 2016 | $115,000 | – | 9,622 | – | 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% |