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 | $506 | -33.3% | 11,000 | -16.7% | 0.00% | -40.0% |
| Q2 2023 | $759 | -99.9% | 13,200 | -64.1% | 0.01% | +25.0% |
| Q1 2021 | $674,000 | -8.9% | 36,800 | 0.0% | 0.00% | -20.0% |
| Q4 2020 | $740,000 | -34.7% | 36,800 | -39.1% | 0.01% | -37.5% |
| Q3 2020 | $1,133,000 | -16.5% | 60,400 | 0.0% | 0.01% | -27.3% |
| Q2 2020 | $1,357,000 | -53.5% | 60,400 | -69.3% | 0.01% | -26.7% |
| Q1 2020 | $2,918,000 | +99.6% | 196,600 | +159.4% | 0.02% | +36.4% |
| Q4 2019 | $1,462,000 | -21.7% | 75,800 | -19.5% | 0.01% | -31.2% |
| Q3 2019 | $1,868,000 | -14.1% | 94,200 | -8.5% | 0.02% | -15.8% |
| Q2 2019 | $2,174,000 | -9.2% | 103,000 | -12.1% | 0.02% | -13.6% |
| Q1 2019 | $2,394,000 | +2.2% | 117,200 | -0.4% | 0.02% | +4.8% |
| Q4 2018 | $2,342,000 | -20.1% | 117,700 | -22.7% | 0.02% | -4.5% |
| Q3 2018 | $2,930,000 | +34.2% | 152,300 | +6.4% | 0.02% | +15.8% |
| Q2 2018 | $2,184,000 | -6.3% | 143,100 | +15.1% | 0.02% | -13.6% |
| Q1 2018 | $2,331,000 | -12.9% | 124,300 | -10.6% | 0.02% | -4.3% |
| Q4 2017 | $2,676,000 | -13.5% | 139,100 | -19.6% | 0.02% | -17.9% |
| Q3 2017 | $3,092,000 | -5.1% | 173,000 | -5.2% | 0.03% | -9.7% |
| Q2 2017 | $3,258,000 | -48.1% | 182,400 | -57.9% | 0.03% | +3.3% |
| Q1 2017 | $6,282,000 | +95.8% | 433,200 | +148.7% | 0.03% | -23.1% |
| Q4 2016 | $3,209,000 | -21.2% | 174,200 | -18.8% | 0.04% | -11.4% |
| Q3 2016 | $4,071,000 | +3.2% | 214,600 | -12.3% | 0.04% | 0.0% |
| Q2 2016 | $3,946,000 | +34.3% | 244,800 | 0.0% | 0.04% | +33.3% |
| Q1 2016 | $2,938,000 | -27.3% | 244,800 | -13.8% | 0.03% | -36.5% |
| Q4 2015 | $4,041,000 | – | 284,000 | – | 0.05% | – |
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% |