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 | $5,855,723 | -30.2% | 127,326 | -12.7% | 0.06% | -20.0% |
| Q2 2023 | $8,384,643 | +19.5% | 145,896 | -22.0% | 0.08% | +9.6% |
| Q1 2023 | $7,014,750 | +22.7% | 187,060 | -8.3% | 0.07% | +17.7% |
| Q4 2022 | $5,715,267 | -0.6% | 203,971 | -0.3% | 0.06% | -7.5% |
| Q3 2022 | $5,749,000 | -19.7% | 204,573 | -0.5% | 0.07% | -18.3% |
| Q2 2022 | $7,155,000 | -20.7% | 205,663 | -18.2% | 0.08% | 0.0% |
| Q1 2022 | $9,021,000 | +53.6% | 251,272 | -0.4% | 0.08% | +78.3% |
| Q4 2021 | $5,874,000 | +20.8% | 252,208 | -1.4% | 0.05% | +21.1% |
| Q3 2021 | $4,863,000 | +30.4% | 255,813 | +38.3% | 0.04% | +40.7% |
| Q2 2021 | $3,729,000 | – | 184,979 | – | 0.03% | – |
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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% |