AMPHASTAR PHARMACEUTICALS IN's ticker is AMPH and the CUSIP is 03209R103. A total of 135 filers reported holding AMPHASTAR PHARMACEUTICALS IN in Q1 2021. The put-call ratio across all filers is - and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $433,962 | -3.9% | 9,436 | +20.1% | 0.00% | 0.0% |
| Q2 2023 | $451,369 | +76.9% | 7,854 | +15.4% | 0.00% | +100.0% |
| Q1 2023 | $255,113 | +16.3% | 6,803 | -13.1% | 0.00% | 0.0% |
| Q4 2022 | $219,425 | +20.6% | 7,831 | +21.2% | 0.00% | 0.0% |
| Q3 2022 | $182,000 | -19.1% | 6,462 | 0.0% | 0.00% | 0.0% |
| Q2 2022 | $225,000 | +16.0% | 6,462 | +19.6% | 0.00% | 0.0% |
| Q1 2022 | $194,000 | +24.4% | 5,401 | -19.5% | 0.00% | 0.0% |
| Q4 2021 | $156,000 | +132.8% | 6,710 | +89.1% | 0.00% | – |
| Q3 2021 | $67,000 | -6.9% | 3,549 | 0.0% | 0.00% | – |
| Q2 2021 | $72,000 | -26.5% | 3,549 | -33.5% | 0.00% | -100.0% |
| Q1 2021 | $98,000 | -8.4% | 5,340 | 0.0% | 0.00% | 0.0% |
| Q4 2020 | $107,000 | +7.0% | 5,340 | 0.0% | 0.00% | 0.0% |
| Q3 2020 | $100,000 | -16.7% | 5,340 | 0.0% | 0.00% | 0.0% |
| Q2 2020 | $120,000 | +233.3% | 5,340 | +121.5% | 0.00% | – |
| Q1 2020 | $36,000 | -23.4% | 2,411 | 0.0% | 0.00% | – |
| Q4 2019 | $47,000 | -2.1% | 2,411 | 0.0% | 0.00% | – |
| Q3 2019 | $48,000 | -5.9% | 2,411 | 0.0% | 0.00% | – |
| Q2 2019 | $51,000 | +4.1% | 2,411 | 0.0% | 0.00% | – |
| Q1 2019 | $49,000 | -22.2% | 2,411 | -24.4% | 0.00% | -100.0% |
| Q4 2018 | $63,000 | +3.3% | 3,188 | 0.0% | 0.00% | 0.0% |
| Q3 2018 | $61,000 | +24.5% | 3,188 | 0.0% | 0.00% | – |
| Q2 2018 | $49,000 | -18.3% | 3,188 | 0.0% | 0.00% | -100.0% |
| Q1 2018 | $60,000 | -1.6% | 3,188 | 0.0% | 0.00% | 0.0% |
| Q4 2017 | $61,000 | +64.9% | 3,188 | +53.0% | 0.00% | – |
| Q3 2017 | $37,000 | 0.0% | 2,083 | 0.0% | 0.00% | – |
| Q2 2017 | $37,000 | +23.3% | 2,083 | 0.0% | 0.00% | – |
| Q1 2017 | $30,000 | -21.1% | 2,083 | 0.0% | 0.00% | – |
| Q4 2016 | $38,000 | -5.0% | 2,083 | 0.0% | 0.00% | – |
| Q3 2016 | $40,000 | +42.9% | 2,083 | +19.2% | 0.00% | – |
| Q2 2016 | $28,000 | +33.3% | 1,748 | 0.0% | 0.00% | – |
| Q1 2016 | $21,000 | -16.0% | 1,748 | 0.0% | 0.00% | – |
| Q4 2015 | $25,000 | +316.7% | 1,748 | +268.8% | 0.00% | – |
| Q3 2015 | $6,000 | – | 474 | – | 0.00% | – |
Download | ||||||
Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| LAM GROUP, INC. | 130,250 | $4,884,375 | 4.79% |
| SHAKER INVESTMENTS LLC/OH | 82,253 | $3,084,488 | 1.72% |
| Mesirow Institutional Investment Management, Inc. | 325,669 | $12,212,588 | 1.33% |
| Portolan Capital Management | 340,593 | $12,772,238 | 1.22% |
| OBERWEIS ASSET MANAGEMENT INC/ | 178,200 | $6,682,500 | 1.04% |
| Granite Investment Partners, LLC | 536,821 | $20,130,788 | 0.84% |
| Capital Impact Advisors, LLC | 15,304 | $573,900 | 0.70% |
| Hillsdale Investment Management Inc. | 155,038 | $5,813,926 | 0.50% |
| GLOBEFLEX CAPITAL L P | 89,192 | $3,344,700 | 0.41% |
| Jackson Creek Investment Advisors LLC | 25,877 | $970 | 0.41% |