AMPHASTAR PHARMACEUTICALS IN's ticker is AMPH and the CUSIP is 03209R103. A total of 211 filers reported holding AMPHASTAR PHARMACEUTICALS IN in Q4 2022. The put-call ratio across all filers is 0.20 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $975 | +3.3% | 20,848 | +24.1% | 0.00% | 0.0% |
| Q2 2023 | $944 | +51.3% | 16,800 | 0.0% | 0.00% | 0.0% |
| Q1 2023 | $624 | +32.8% | 16,800 | 0.0% | 0.00% | +100.0% |
| Q4 2022 | $470 | -99.9% | 16,800 | 0.0% | 0.00% | 0.0% |
| Q3 2022 | $477,000 | -17.6% | 16,800 | 0.0% | 0.00% | -50.0% |
| Q2 2022 | $579,000 | -5.4% | 16,800 | 0.0% | 0.00% | +100.0% |
| Q1 2022 | $612,000 | +74.4% | 16,800 | +9.8% | 0.00% | 0.0% |
| Q4 2021 | $351,000 | +24.0% | 15,300 | +2.7% | 0.00% | 0.0% |
| Q3 2021 | $283,000 | -5.4% | 14,900 | 0.0% | 0.00% | 0.0% |
| Q2 2021 | $299,000 | +12.4% | 14,900 | 0.0% | 0.00% | 0.0% |
| Q1 2021 | $266,000 | -11.0% | 14,900 | 0.0% | 0.00% | 0.0% |
| Q4 2020 | $299,000 | +9.1% | 14,900 | 0.0% | 0.00% | 0.0% |
| Q3 2020 | $274,000 | -11.9% | 14,900 | -3.2% | 0.00% | -50.0% |
| Q3 2019 | $311,000 | -75.5% | 15,400 | -74.7% | 0.00% | -66.7% |
| Q2 2019 | $1,268,000 | +268.6% | 60,800 | +225.1% | 0.01% | +200.0% |
| Q1 2019 | $344,000 | +12.1% | 18,700 | +21.4% | 0.00% | 0.0% |
| Q4 2018 | $307,000 | -10.8% | 15,400 | -17.6% | 0.00% | 0.0% |
| Q3 2018 | $344,000 | +15.4% | 18,700 | -2.6% | 0.00% | 0.0% |
| Q2 2018 | $298,000 | -16.1% | 19,200 | 0.0% | 0.00% | 0.0% |
| Q1 2018 | $355,000 | -3.0% | 19,200 | -22.0% | 0.00% | -33.3% |
| Q4 2017 | $366,000 | 0.0% | 24,600 | 0.0% | 0.00% | 0.0% |
| Q3 2017 | $366,000 | -15.5% | 24,600 | 0.0% | 0.00% | 0.0% |
| Q2 2017 | $433,000 | +19.6% | 24,600 | 0.0% | 0.00% | 0.0% |
| Q1 2017 | $362,000 | -26.6% | 24,600 | -7.5% | 0.00% | -40.0% |
| Q4 2016 | $493,000 | +6.5% | 26,600 | +8.1% | 0.01% | 0.0% |
| Q3 2016 | $463,000 | +16.9% | 24,600 | 0.0% | 0.01% | 0.0% |
| Q2 2016 | $396,000 | +69.2% | 24,600 | +25.5% | 0.01% | +66.7% |
| Q1 2016 | $234,000 | -29.3% | 19,600 | -15.2% | 0.00% | -25.0% |
| Q4 2015 | $331,000 | +25.9% | 23,100 | +2.7% | 0.00% | +33.3% |
| Q3 2015 | $263,000 | -31.0% | 22,500 | +3.7% | 0.00% | -40.0% |
| Q2 2015 | $381,000 | +21.7% | 21,700 | +3.8% | 0.01% | +25.0% |
| Q1 2015 | $313,000 | – | 20,900 | – | 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% |