AMPHASTAR PHARMACEUTICALS IN's ticker is AMPH and the CUSIP is 03209R103. A total of 221 filers reported holding AMPHASTAR PHARMACEUTICALS IN in Q2 2022. The put-call ratio across all filers is 12.07 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q1 2023 | $1,036,388 | +35.2% | 27,637 | +1.0% | 0.04% | +28.1% |
| Q4 2022 | $766,823 | -19.1% | 27,367 | -18.9% | 0.03% | -23.8% |
| Q3 2022 | $948,000 | -19.7% | 33,747 | -0.6% | 0.04% | -14.3% |
| Q2 2022 | $1,181,000 | -0.8% | 33,946 | +2.3% | 0.05% | -2.0% |
| Q1 2022 | $1,191,000 | +42.5% | 33,179 | -7.5% | 0.05% | +66.7% |
| Q4 2021 | $836,000 | -7.4% | 35,879 | -24.4% | 0.03% | -9.1% |
| Q3 2021 | $903,000 | +32.8% | 47,483 | +40.7% | 0.03% | +43.5% |
| Q2 2021 | $680,000 | – | 33,747 | – | 0.02% | – |
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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% |