AMPHASTAR PHARMACEUTICALS IN's ticker is AMPH and the CUSIP is 03209R103. A total of 130 filers reported holding AMPHASTAR PHARMACEUTICALS IN in Q4 2020. The put-call ratio across all filers is - and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q2 2021 | $321,000 | +9.9% | 15,900 | 0.0% | 0.00% | +33.3% |
| Q1 2021 | $292,000 | -8.8% | 15,900 | 0.0% | 0.00% | -25.0% |
| Q4 2020 | $320,000 | -17.9% | 15,900 | -23.6% | 0.00% | -20.0% |
| Q3 2020 | $390,000 | -74.8% | 20,800 | -69.8% | 0.01% | -77.3% |
| Q2 2020 | $1,549,000 | +50.4% | 68,937 | -0.6% | 0.02% | +37.5% |
| Q1 2020 | $1,030,000 | -25.3% | 69,374 | -2.6% | 0.02% | +14.3% |
| Q4 2019 | $1,378,000 | -4.1% | 71,192 | -1.7% | 0.01% | -12.5% |
| Q3 2019 | $1,437,000 | -6.1% | 72,447 | 0.0% | 0.02% | -5.9% |
| Q2 2019 | $1,530,000 | +0.8% | 72,447 | -2.5% | 0.02% | 0.0% |
| Q1 2019 | $1,518,000 | +2.6% | 74,279 | 0.0% | 0.02% | -10.5% |
| Q4 2018 | $1,479,000 | +3.5% | 74,279 | 0.0% | 0.02% | +35.7% |
| Q3 2018 | $1,429,000 | +26.1% | 74,279 | 0.0% | 0.01% | +27.3% |
| Q2 2018 | $1,133,000 | -18.7% | 74,279 | 0.0% | 0.01% | -21.4% |
| Q1 2018 | $1,393,000 | -8.4% | 74,279 | -6.1% | 0.01% | 0.0% |
| Q4 2017 | $1,521,000 | +6.8% | 79,064 | -0.8% | 0.01% | +16.7% |
| Q3 2017 | $1,424,000 | -2.3% | 79,683 | -2.3% | 0.01% | 0.0% |
| Q2 2017 | $1,457,000 | +23.2% | 81,569 | 0.0% | 0.01% | +20.0% |
| Q1 2017 | $1,183,000 | -21.3% | 81,569 | 0.0% | 0.01% | -16.7% |
| Q4 2016 | $1,503,000 | +5.6% | 81,569 | +8.7% | 0.01% | +9.1% |
| Q3 2016 | $1,423,000 | +253.1% | 75,026 | +200.0% | 0.01% | +266.7% |
| Q2 2016 | $403,000 | – | 25,007 | – | 0.00% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| LAM GROUP, INC. | 130,250 | $3,649,605 | 3.75% |
| SHAKER INVESTMENTS LLC/OH | 81,287 | $2,277,662 | 1.41% |
| Mesirow Institutional Investment Management, Inc. | 374,414 | $10,491,080 | 1.38% |
| OBERWEIS ASSET MANAGEMENT INC/ | 134,000 | $3,754,680 | 0.80% |
| Portolan Capital Management | 270,791 | $7,587,564 | 0.75% |
| Hillsdale Investment Management Inc. | 172,238 | $4,826,109 | 0.41% |
| Capital Impact Advisors, LLC | 14,669 | $411,025 | 0.40% |
| Watershed Asset Management, L.L.C. | 9,555 | $267,731 | 0.34% |
| Quantedge Capital Pte Ltd | 35,153 | $984,987 | 0.33% |
| FEDERATED HERMES, INC. | 3,284,217 | $92,023,760 | 0.25% |