AMPHASTAR PHARMACEUTICALS IN's ticker is AMPH and the CUSIP is 03209R103. A total of 110 filers reported holding AMPHASTAR PHARMACEUTICALS IN in Q4 2017. The put-call ratio across all filers is - and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q4 2019 | $2,341,000 | -47.1% | 121,359 | -45.6% | 0.22% | -33.1% |
| Q3 2019 | $4,426,000 | -11.4% | 223,184 | -5.7% | 0.34% | -6.2% |
| Q2 2019 | $4,998,000 | +10.4% | 236,744 | +6.8% | 0.36% | +8.5% |
| Q1 2019 | $4,529,000 | -99.9% | 221,704 | +34.3% | 0.33% | +24.2% |
| Q4 2018 | $3,284,256,000 | +288.5% | 165,038 | +275.6% | 0.26% | +381.8% |
| Q3 2018 | $845,425,000 | +23.7% | 43,941 | -1.9% | 0.06% | +12.2% |
| Q2 2018 | $683,587,000 | -30.4% | 44,796 | -14.5% | 0.05% | -33.8% |
| Q1 2018 | $982,819,000 | -2.5% | 52,417 | 0.0% | 0.07% | -6.3% |
| Q4 2017 | $1,008,503,000 | +7.7% | 52,417 | 0.0% | 0.08% | -1.2% |
| Q3 2017 | $936,692,000 | +0.1% | 52,417 | 0.0% | 0.08% | -8.0% |
| Q2 2017 | $936,168,000 | +23.2% | 52,417 | 0.0% | 0.09% | +16.0% |
| Q1 2017 | $760,047,000 | – | 52,417 | – | 0.08% | – |
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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% |