AMPHASTAR PHARMACEUTICALS IN's ticker is AMPH and the CUSIP is 03209R103. A total of 135 filers reported holding AMPHASTAR PHARMACEUTICALS IN in Q4 2018. The put-call ratio across all filers is - and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $6,068,381 | +110.8% | 131,950 | +163.5% | 0.00% | +200.0% |
| Q2 2023 | $2,878,098 | +70.9% | 50,080 | +11.5% | 0.00% | 0.0% |
| Q1 2023 | $1,683,638 | -25.3% | 44,897 | -44.2% | 0.00% | 0.0% |
| Q4 2022 | $2,254,041 | +58.8% | 80,444 | +59.3% | 0.00% | 0.0% |
| Q3 2022 | $1,419,000 | -19.0% | 50,489 | +0.3% | 0.00% | 0.0% |
| Q2 2022 | $1,752,000 | +5.6% | 50,347 | +9.0% | 0.00% | 0.0% |
| Q1 2022 | $1,659,000 | +54.6% | 46,206 | +0.3% | 0.00% | – |
| Q4 2021 | $1,073,000 | -35.8% | 46,053 | -47.6% | 0.00% | -100.0% |
| Q3 2021 | $1,672,000 | +74.0% | 87,935 | +84.5% | 0.00% | – |
| Q2 2021 | $961,000 | +10.1% | 47,670 | 0.0% | 0.00% | – |
| Q1 2021 | $873,000 | -51.7% | 47,670 | -47.0% | 0.00% | -100.0% |
| Q4 2020 | $1,808,000 | +8.6% | 89,883 | +1.2% | 0.00% | 0.0% |
| Q3 2020 | $1,665,000 | -31.4% | 88,810 | -17.8% | 0.00% | 0.0% |
| Q2 2020 | $2,426,000 | +51.1% | 108,010 | -0.2% | 0.00% | 0.0% |
| Q1 2020 | $1,606,000 | -23.9% | 108,190 | -1.1% | 0.00% | 0.0% |
| Q4 2019 | $2,109,000 | -1.4% | 109,340 | +1.3% | 0.00% | 0.0% |
| Q3 2019 | $2,140,000 | -12.8% | 107,940 | -7.1% | 0.00% | -50.0% |
| Q2 2019 | $2,453,000 | +17.9% | 116,190 | +14.1% | 0.00% | +100.0% |
| Q1 2019 | $2,080,000 | -15.0% | 101,790 | -17.2% | 0.00% | -50.0% |
| Q4 2018 | $2,446,000 | +2.4% | 122,900 | -1.0% | 0.00% | 0.0% |
| Q3 2018 | $2,388,000 | +26.1% | 124,100 | 0.0% | 0.00% | +100.0% |
| Q2 2018 | $1,894,000 | -2.5% | 124,100 | +19.8% | 0.00% | 0.0% |
| Q1 2018 | $1,942,000 | -11.1% | 103,570 | -8.8% | 0.00% | -50.0% |
| Q4 2017 | $2,184,000 | +168.0% | 113,520 | +148.9% | 0.00% | +100.0% |
| Q3 2017 | $815,000 | +0.1% | 45,600 | 0.0% | 0.00% | 0.0% |
| Q2 2017 | $814,000 | +1.0% | 45,600 | -18.0% | 0.00% | 0.0% |
| Q1 2017 | $806,000 | -81.0% | 55,600 | -75.9% | 0.00% | -75.0% |
| Q4 2016 | $4,243,000 | +4.3% | 230,330 | +7.4% | 0.00% | +33.3% |
| Q3 2016 | $4,068,000 | +138.9% | 214,420 | +103.0% | 0.00% | +200.0% |
| Q2 2016 | $1,703,000 | +261.6% | 105,630 | +169.1% | 0.00% | – |
| Q1 2016 | $471,000 | +14.0% | 39,260 | +35.3% | 0.00% | – |
| Q4 2015 | $413,000 | +22.9% | 29,020 | +1.1% | 0.00% | – |
| Q3 2015 | $336,000 | -23.6% | 28,700 | +14.8% | 0.00% | – |
| Q2 2015 | $440,000 | +303.7% | 25,000 | +242.5% | 0.00% | – |
| Q1 2015 | $109,000 | – | 7,300 | – | 0.00% | – |
Download | ||||||
Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| EAM Investors, LLC | 173,018 | $3,187,000 | 0.42% |
| GLOBEFLEX CAPITAL L P | 50,686 | $934,000 | 0.23% |
| KALMAR INVESTMENTS INC /DE/ | 240,648 | $4,433,000 | 0.23% |
| ESSEX INVESTMENT MANAGEMENT CO LLC | 63,661 | $1,173,000 | 0.19% |
| OBERWEIS ASSET MANAGEMENT INC/ | 27,200 | $501,000 | 0.15% |
| Invictus RG | 11,950 | $220,000 | 0.15% |
| ACADIAN ASSET MANAGEMENT LLC | 1,502,151 | $27,668,000 | 0.13% |
| FOX RUN MANAGEMENT, L.L.C. | 12,600 | $232,000 | 0.12% |
| Piermont Capital Management Inc. | 26,153 | $482,000 | 0.11% |
| FEDERATED HERMES, INC. | 1,344,684 | $24,769,000 | 0.07% |