AMPHASTAR PHARMACEUTICALS IN's ticker is AMPH and the CUSIP is 03209R103. A total of 145 filers reported holding AMPHASTAR PHARMACEUTICALS IN in Q2 2021. The put-call ratio across all filers is - and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q2 2023 | $735,616 | -41.6% | 12,800 | -61.9% | 0.00% | -50.0% |
| Q1 2023 | $1,260,000 | -22.1% | 33,600 | -41.8% | 0.00% | -33.3% |
| Q4 2022 | $1,618,015 | +175.2% | 57,745 | +176.0% | 0.00% | +200.0% |
| Q3 2022 | $588,000 | -45.5% | 20,924 | -32.5% | 0.00% | 0.0% |
| Q2 2022 | $1,079,000 | +29.4% | 31,009 | +33.5% | 0.00% | 0.0% |
| Q1 2022 | $834,000 | +54.2% | 23,229 | 0.0% | 0.00% | – |
| Q4 2021 | $541,000 | +1.5% | 23,229 | -17.1% | 0.00% | – |
| Q3 2021 | $533,000 | -5.0% | 28,017 | +0.8% | 0.00% | – |
| Q2 2021 | $561,000 | +10.2% | 27,791 | +0.1% | 0.00% | – |
| Q1 2021 | $509,000 | -34.1% | 27,761 | -46.6% | 0.00% | -100.0% |
| Q1 2020 | $772,000 | -23.3% | 52,001 | -0.4% | 0.00% | 0.0% |
| Q4 2019 | $1,007,000 | -1.4% | 52,202 | +1.4% | 0.00% | 0.0% |
| Q3 2019 | $1,021,000 | -62.4% | 51,472 | -60.0% | 0.00% | -66.7% |
| Q2 2019 | $2,715,000 | +6.0% | 128,619 | +2.6% | 0.00% | 0.0% |
| Q1 2019 | $2,561,000 | +2.8% | 125,372 | +0.2% | 0.00% | 0.0% |
| Q4 2018 | $2,491,000 | +17.2% | 125,164 | +13.3% | 0.00% | +50.0% |
| Q3 2018 | $2,125,000 | +45.1% | 110,465 | +15.1% | 0.00% | +100.0% |
| Q2 2018 | $1,465,000 | -2.2% | 95,970 | +20.1% | 0.00% | 0.0% |
| Q1 2018 | $1,498,000 | -4.7% | 79,912 | -2.2% | 0.00% | 0.0% |
| Q4 2017 | $1,572,000 | +7.5% | 81,688 | -0.2% | 0.00% | 0.0% |
| Q3 2017 | $1,462,000 | +0.1% | 81,813 | +0.1% | 0.00% | 0.0% |
| Q2 2017 | $1,460,000 | +23.3% | 81,753 | +0.2% | 0.00% | 0.0% |
| Q1 2017 | $1,184,000 | -21.7% | 81,623 | -0.5% | 0.00% | 0.0% |
| Q4 2016 | $1,512,000 | -16.7% | 82,061 | -14.2% | 0.00% | -50.0% |
| Q3 2016 | $1,815,000 | +19.7% | 95,659 | +1.7% | 0.00% | 0.0% |
| Q2 2016 | $1,516,000 | – | 94,014 | – | 0.00% | – |
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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% |