AMPHASTAR PHARMACEUTICALS IN's ticker is AMPH and the CUSIP is 03209R103. A total of 250 filers reported holding AMPHASTAR PHARMACEUTICALS IN in Q3 2023. The put-call ratio across all filers is 1.02 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $2,223 | -38.7% | 48,327 | -23.4% | 0.00% | -40.0% |
| Q2 2023 | $3,627 | +61.8% | 63,116 | +5.6% | 0.01% | +66.7% |
| Q1 2023 | $2,242 | +180.6% | 59,786 | +109.5% | 0.00% | +200.0% |
| Q4 2022 | $799 | -99.9% | 28,533 | +6.7% | 0.00% | 0.0% |
| Q3 2022 | $752,000 | -18.8% | 26,746 | +0.5% | 0.00% | 0.0% |
| Q2 2022 | $926,000 | -2.3% | 26,604 | +0.8% | 0.00% | 0.0% |
| Q1 2022 | $948,000 | +52.4% | 26,400 | -1.1% | 0.00% | 0.0% |
| Q4 2021 | $622,000 | +22.2% | 26,704 | -0.4% | 0.00% | 0.0% |
| Q3 2021 | $509,000 | -22.1% | 26,798 | -17.3% | 0.00% | 0.0% |
| Q2 2021 | $653,000 | +11.1% | 32,404 | +0.9% | 0.00% | 0.0% |
| Q1 2021 | $588,000 | -9.0% | 32,100 | 0.0% | 0.00% | 0.0% |
| Q4 2020 | $646,000 | +7.3% | 32,100 | 0.0% | 0.00% | 0.0% |
| Q3 2020 | $602,000 | -16.5% | 32,100 | 0.0% | 0.00% | 0.0% |
| Q2 2020 | $721,000 | +51.5% | 32,100 | 0.0% | 0.00% | 0.0% |
| Q1 2020 | $476,000 | -23.1% | 32,100 | 0.0% | 0.00% | 0.0% |
| Q4 2019 | $619,000 | -17.7% | 32,100 | -15.3% | 0.00% | 0.0% |
| Q3 2019 | $752,000 | -30.4% | 37,900 | -26.0% | 0.00% | 0.0% |
| Q2 2019 | $1,081,000 | +3.3% | 51,189 | 0.0% | 0.00% | 0.0% |
| Q1 2019 | $1,046,000 | +9.1% | 51,189 | +6.2% | 0.00% | 0.0% |
| Q4 2018 | $959,000 | +31.6% | 48,186 | +27.1% | 0.00% | 0.0% |
| Q3 2018 | $729,000 | +11.8% | 37,900 | -11.3% | 0.00% | 0.0% |
| Q2 2018 | $652,000 | -18.6% | 42,720 | 0.0% | 0.00% | 0.0% |
| Q1 2018 | $801,000 | -2.6% | 42,720 | 0.0% | 0.00% | 0.0% |
| Q4 2017 | $822,000 | +7.7% | 42,720 | 0.0% | 0.00% | 0.0% |
| Q3 2017 | $763,000 | 0.0% | 42,720 | 0.0% | 0.00% | 0.0% |
| Q2 2017 | $763,000 | +23.3% | 42,720 | -0.0% | 0.00% | 0.0% |
| Q1 2017 | $619,000 | -20.6% | 42,721 | +0.9% | 0.00% | 0.0% |
| Q4 2016 | $780,000 | -2.9% | 42,320 | 0.0% | 0.00% | 0.0% |
| Q3 2016 | $803,000 | +52.7% | 42,320 | +29.8% | 0.00% | 0.0% |
| Q2 2016 | $526,000 | +34.5% | 32,600 | 0.0% | 0.00% | 0.0% |
| Q1 2016 | $391,000 | -15.7% | 32,600 | 0.0% | 0.00% | 0.0% |
| Q4 2015 | $464,000 | +21.8% | 32,600 | 0.0% | 0.00% | 0.0% |
| Q3 2015 | $381,000 | -11.2% | 32,600 | +33.7% | 0.00% | 0.0% |
| Q2 2015 | $429,000 | – | 24,381 | – | 0.00% | – |
Download | ||||||
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% |