AMPHASTAR PHARMACEUTICALS IN's ticker is AMPH and the CUSIP is 03209R103. A total of 109 filers reported holding AMPHASTAR PHARMACEUTICALS IN in Q3 2018. The put-call ratio across all filers is - and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q4 2023 | $16,576 | -1.5% | 268 | -26.8% | 0.01% | 0.0% |
| Q3 2023 | $16,832 | -31.2% | 366 | -14.1% | 0.01% | -37.5% |
| Q2 2023 | $24,482 | +43.0% | 426 | -6.6% | 0.01% | +33.3% |
| Q1 2023 | $17,125 | +28.9% | 456 | -3.8% | 0.01% | +20.0% |
| Q4 2022 | $13,281 | +2.2% | 474 | 0.0% | 0.01% | 0.0% |
| Q3 2022 | $13,000 | -23.5% | 474 | -0.2% | 0.01% | -16.7% |
| Q2 2022 | $17,000 | -10.5% | 475 | -7.9% | 0.01% | 0.0% |
| Q1 2022 | $19,000 | +46.2% | 516 | -8.5% | 0.01% | +50.0% |
| Q4 2021 | $13,000 | +30.0% | 564 | +12.1% | 0.00% | 0.0% |
| Q3 2021 | $10,000 | -9.1% | 503 | -8.4% | 0.00% | 0.0% |
| Q2 2021 | $11,000 | +22.2% | 549 | +16.1% | 0.00% | +33.3% |
| Q1 2021 | $9,000 | 0.0% | 473 | 0.0% | 0.00% | -25.0% |
| Q4 2020 | $9,000 | +12.5% | 473 | 0.0% | 0.00% | 0.0% |
| Q3 2020 | $8,000 | -20.0% | 473 | 0.0% | 0.00% | -20.0% |
| Q2 2020 | $10,000 | +66.7% | 473 | +2.2% | 0.01% | +66.7% |
| Q1 2020 | $6,000 | – | 463 | +2004.5% | 0.00% | – |
| Q4 2018 | $0 | – | 22 | +83.3% | 0.00% | – |
| Q3 2018 | $0 | – | 12 | -20.0% | 0.00% | – |
| Q2 2018 | $0 | – | 15 | 0.0% | 0.00% | – |
| Q1 2018 | $0 | – | 15 | -65.1% | 0.00% | – |
| Q4 2017 | $0 | – | 43 | 0.0% | 0.00% | – |
| Q3 2017 | $0 | -100.0% | 43 | -81.3% | 0.00% | -100.0% |
| Q2 2017 | $4,000 | – | 230 | – | 0.00% | – |
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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% |