AMPHASTAR PHARMACEUTICALS IN's ticker is AMPH and the CUSIP is 03209R103. A total of 138 filers reported holding AMPHASTAR PHARMACEUTICALS IN in Q3 2021. The put-call ratio across all filers is - and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $538 | -19.9% | 11,691 | 0.0% | 0.01% | -16.7% |
| Q2 2023 | $672 | +62.7% | 11,691 | +6.1% | 0.01% | +50.0% |
| Q1 2023 | $413 | +34.1% | 11,021 | 0.0% | 0.00% | +33.3% |
| Q4 2022 | $308 | -99.9% | 11,021 | 0.0% | 0.00% | -25.0% |
| Q3 2022 | $309,000 | -16.7% | 11,021 | +6.7% | 0.00% | 0.0% |
| Q1 2022 | $371,000 | +53.9% | 10,331 | 0.0% | 0.00% | +100.0% |
| Q4 2021 | $241,000 | +23.0% | 10,331 | 0.0% | 0.00% | 0.0% |
| Q3 2021 | $196,000 | -5.8% | 10,331 | 0.0% | 0.00% | 0.0% |
| Q2 2021 | $208,000 | +10.1% | 10,331 | 0.0% | 0.00% | 0.0% |
| Q1 2021 | $189,000 | +34.0% | 10,331 | +46.9% | 0.00% | +100.0% |
| Q4 2020 | $141,000 | +6.8% | 7,031 | 0.0% | 0.00% | 0.0% |
| Q3 2020 | $132,000 | -16.5% | 7,031 | 0.0% | 0.00% | -50.0% |
| Q2 2020 | $158,000 | +51.9% | 7,031 | 0.0% | 0.00% | +100.0% |
| Q1 2020 | $104,000 | -23.5% | 7,031 | 0.0% | 0.00% | -50.0% |
| Q4 2019 | $136,000 | -2.2% | 7,031 | 0.0% | 0.00% | 0.0% |
| Q3 2019 | $139,000 | -6.1% | 7,031 | 0.0% | 0.00% | 0.0% |
| Q2 2019 | $148,000 | +2.8% | 7,031 | 0.0% | 0.00% | 0.0% |
| Q1 2019 | $144,000 | +2.9% | 7,031 | 0.0% | 0.00% | 0.0% |
| Q4 2018 | $140,000 | +3.7% | 7,031 | 0.0% | 0.00% | 0.0% |
| Q3 2018 | $135,000 | +26.2% | 7,031 | 0.0% | 0.00% | +100.0% |
| Q2 2018 | $107,000 | -18.9% | 7,031 | 0.0% | 0.00% | -50.0% |
| Q1 2018 | $132,000 | -12.0% | 7,031 | -9.9% | 0.00% | 0.0% |
| Q4 2017 | $150,000 | -33.9% | 7,800 | -38.6% | 0.00% | -33.3% |
| Q3 2017 | $227,000 | 0.0% | 12,700 | 0.0% | 0.00% | 0.0% |
| Q2 2017 | $227,000 | +23.4% | 12,700 | 0.0% | 0.00% | +50.0% |
| Q1 2017 | $184,000 | -21.4% | 12,700 | 0.0% | 0.00% | -33.3% |
| Q4 2016 | $234,000 | -2.9% | 12,700 | 0.0% | 0.00% | 0.0% |
| Q3 2016 | $241,000 | – | 12,700 | – | 0.00% | – |
Download | ||||||
Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| LAM GROUP, INC. | 128,000 | $5,886,720 | 5.78% |
| Beacon Harbor Wealth Advisors, Inc. | 103,095 | $4,741 | 1.58% |
| Capital Impact Advisors, LLC | 15,304 | $703,831 | 1.18% |
| Quantedge Capital Pte Ltd | 36,389 | $1,673,530 | 0.91% |
| Mesirow Institutional Investment Management, Inc. | 183,805 | $8,453,192 | 0.86% |
| Monashee Investment Management LLC | 39,461 | $1,814,811 | 0.76% |
| OBERWEIS ASSET MANAGEMENT INC/ | 152,500 | $7,013,475 | 0.74% |
| Granite Investment Partners, LLC | 330,911 | $15,218,597 | 0.64% |
| Portolan Capital Management | 132,850 | $6,109,772 | 0.57% |
| SHAKER INVESTMENTS LLC/OH | 20,795 | $956,362 | 0.53% |