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 | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $505,706 | -18.7% | 10,996 | +1.5% | 0.00% | -20.0% |
| Q2 2023 | $622,343 | +48.1% | 10,829 | -3.3% | 0.01% | +25.0% |
| Q1 2023 | $420,113 | +35.5% | 11,203 | +1.3% | 0.00% | +33.3% |
| Q4 2022 | $310,013 | +4.0% | 11,064 | +4.2% | 0.00% | 0.0% |
| Q3 2022 | $298,000 | -17.5% | 10,616 | +2.3% | 0.00% | -25.0% |
| Q2 2022 | $361,000 | -2.7% | 10,374 | +0.3% | 0.00% | +33.3% |
| Q1 2022 | $371,000 | +53.9% | 10,347 | +0.0% | 0.00% | +50.0% |
| Q4 2021 | $241,000 | +22.3% | 10,342 | -0.4% | 0.00% | 0.0% |
| Q3 2021 | $197,000 | -5.3% | 10,380 | +0.5% | 0.00% | 0.0% |
| Q2 2021 | $208,000 | +2.5% | 10,330 | -6.6% | 0.00% | 0.0% |
| Q1 2021 | $203,000 | -8.6% | 11,063 | +0.4% | 0.00% | 0.0% |
| Q4 2020 | $222,000 | +6.2% | 11,016 | -1.2% | 0.00% | 0.0% |
| Q3 2020 | $209,000 | -52.6% | 11,152 | -51.2% | 0.00% | -60.0% |
| Q4 2019 | $441,000 | -45.1% | 22,849 | -43.6% | 0.01% | -50.0% |
| Q3 2019 | $803,000 | -30.5% | 40,490 | -26.1% | 0.01% | -23.1% |
| Q2 2019 | $1,156,000 | +6.1% | 54,756 | +2.7% | 0.01% | 0.0% |
| Q1 2019 | $1,090,000 | +2.8% | 53,334 | +0.2% | 0.01% | -7.1% |
| Q4 2018 | $1,060,000 | +9.5% | 53,243 | +5.8% | 0.01% | +55.6% |
| Q3 2018 | $968,000 | +21.5% | 50,325 | -3.6% | 0.01% | +12.5% |
| Q2 2018 | $797,000 | -24.0% | 52,222 | -6.6% | 0.01% | -27.3% |
| Q1 2018 | $1,048,000 | -8.5% | 55,899 | -6.1% | 0.01% | 0.0% |
| Q4 2017 | $1,145,000 | +245.9% | 59,499 | +221.6% | 0.01% | +175.0% |
| Q3 2017 | $331,000 | -0.3% | 18,500 | -0.5% | 0.00% | -20.0% |
| Q2 2017 | $332,000 | +22.5% | 18,600 | -0.5% | 0.01% | +25.0% |
| Q1 2017 | $271,000 | -20.5% | 18,700 | +1.1% | 0.00% | -20.0% |
| Q4 2016 | $341,000 | -2.3% | 18,500 | +0.5% | 0.01% | 0.0% |
| Q3 2016 | $349,000 | – | 18,400 | – | 0.01% | – |
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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% |