AMPHASTAR PHARMACEUTICALS IN's ticker is AMPH and the CUSIP is 03209R103. A total of 4 filers reported holding AMPHASTAR PHARMACEUTICALS IN in Q4 2023. The put-call ratio across all filers is - and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $329,928 | +14.3% | 7,163 | -30.9% | 0.00% | – |
| Q4 2022 | $288,745 | +24.5% | 10,370 | +28.1% | 0.00% | – |
| Q3 2022 | $232,000 | -11.8% | 8,093 | +6.7% | 0.00% | – |
| Q2 2022 | $263,000 | -14.6% | 7,588 | -9.8% | 0.00% | – |
| Q1 2022 | $308,000 | -26.7% | 8,416 | -61.2% | 0.00% | – |
| Q3 2021 | $420,000 | -3.4% | 21,718 | 0.0% | 0.00% | – |
| Q2 2021 | $435,000 | +3.6% | 21,718 | -5.3% | 0.00% | – |
| Q1 2021 | $420,000 | -13.4% | 22,933 | -5.7% | 0.00% | -100.0% |
| Q4 2020 | $485,000 | +5.4% | 24,313 | 0.0% | 0.00% | 0.0% |
| Q3 2020 | $460,000 | -13.2% | 24,313 | +3.0% | 0.00% | 0.0% |
| Q2 2020 | $530,000 | +107.8% | 23,597 | +36.1% | 0.00% | 0.0% |
| Q1 2020 | $255,000 | +6.2% | 17,332 | +39.4% | 0.00% | – |
| Q4 2019 | $240,000 | -57.6% | 12,430 | -56.4% | 0.00% | -100.0% |
| Q3 2019 | $566,000 | – | 28,523 | – | 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% |