AMPHASTAR PHARMACEUTICALS IN's ticker is AMPH and the CUSIP is 03209R103. A total of 204 filers reported holding AMPHASTAR PHARMACEUTICALS IN in Q1 2022. The put-call ratio across all filers is 16.41 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $9,659,556 | -26.5% | 210,036 | -8.2% | 0.01% | -22.2% |
| Q2 2023 | $13,146,780 | +50.6% | 228,759 | -1.7% | 0.01% | +50.0% |
| Q1 2023 | $8,727,752 | +30.4% | 232,740 | -2.6% | 0.01% | +20.0% |
| Q4 2022 | $6,695,435 | -2.7% | 238,952 | -2.4% | 0.01% | 0.0% |
| Q3 2022 | $6,878,000 | -22.9% | 244,743 | -4.6% | 0.01% | -28.6% |
| Q2 2022 | $8,925,000 | -6.9% | 256,544 | -3.9% | 0.01% | +16.7% |
| Q1 2022 | $9,582,000 | +46.4% | 266,904 | -5.0% | 0.01% | +50.0% |
| Q4 2021 | $6,543,000 | +36.5% | 280,940 | +11.4% | 0.00% | +33.3% |
| Q3 2021 | $4,794,000 | -6.3% | 252,168 | -0.6% | 0.00% | 0.0% |
| Q2 2021 | $5,114,000 | +11.0% | 253,684 | +0.9% | 0.00% | 0.0% |
| Q1 2021 | $4,606,000 | -9.0% | 251,404 | -0.1% | 0.00% | -25.0% |
| Q4 2020 | $5,060,000 | +3.2% | 251,628 | -3.8% | 0.00% | 0.0% |
| Q3 2020 | $4,904,000 | -13.3% | 261,537 | +3.8% | 0.00% | -20.0% |
| Q2 2020 | $5,657,000 | +46.6% | 251,888 | -3.1% | 0.01% | +25.0% |
| Q1 2020 | $3,858,000 | -26.1% | 259,962 | -4.0% | 0.00% | 0.0% |
| Q4 2019 | $5,222,000 | -6.7% | 270,714 | -4.1% | 0.00% | -20.0% |
| Q3 2019 | $5,596,000 | -9.4% | 282,179 | -3.6% | 0.01% | -16.7% |
| Q2 2019 | $6,178,000 | +8.8% | 292,677 | +5.3% | 0.01% | +20.0% |
| Q1 2019 | $5,676,000 | +1.6% | 277,827 | -1.0% | 0.01% | -16.7% |
| Q4 2018 | $5,586,000 | +3.7% | 280,690 | +0.2% | 0.01% | +20.0% |
| Q3 2018 | $5,389,000 | +26.3% | 280,115 | +0.2% | 0.01% | +25.0% |
| Q2 2018 | $4,267,000 | -16.8% | 279,627 | +2.3% | 0.00% | -20.0% |
| Q1 2018 | $5,127,000 | -0.4% | 273,428 | +2.2% | 0.01% | 0.0% |
| Q4 2017 | $5,149,000 | +2.8% | 267,639 | -4.5% | 0.01% | 0.0% |
| Q3 2017 | $5,009,000 | -1.0% | 280,328 | -1.1% | 0.01% | 0.0% |
| Q2 2017 | $5,062,000 | +20.2% | 283,429 | -2.4% | 0.01% | 0.0% |
| Q1 2017 | $4,213,000 | -18.6% | 290,535 | +3.4% | 0.01% | -28.6% |
| Q4 2016 | $5,175,000 | +6.2% | 280,943 | +9.3% | 0.01% | +16.7% |
| Q3 2016 | $4,875,000 | – | 256,976 | – | 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% |