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 | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $1,733,868 | -56.6% | 37,701 | -45.8% | 0.01% | -54.5% |
| Q2 2023 | $3,999,279 | -65.2% | 69,589 | -77.3% | 0.02% | -67.2% |
| Q1 2023 | $11,503,000 | +35.6% | 306,770 | +2.0% | 0.07% | +28.8% |
| Q4 2022 | $8,484,000 | -2.7% | 300,873 | -3.0% | 0.05% | -8.8% |
| Q3 2022 | $8,718,000 | +10.2% | 310,255 | +36.4% | 0.06% | +14.0% |
| Q2 2022 | $7,913,000 | +24.3% | 227,459 | +28.3% | 0.05% | +51.5% |
| Q1 2022 | $6,366,000 | +9.3% | 177,339 | -29.5% | 0.03% | +26.9% |
| Q4 2021 | $5,822,000 | +7.6% | 251,616 | -11.6% | 0.03% | +8.3% |
| Q3 2021 | $5,410,000 | -11.9% | 284,618 | -6.5% | 0.02% | -7.7% |
| Q2 2021 | $6,138,000 | +9.3% | 304,474 | -1.9% | 0.03% | +4.0% |
| Q1 2021 | $5,616,000 | -10.6% | 310,459 | -0.6% | 0.02% | -28.6% |
| Q4 2020 | $6,282,000 | +18.6% | 312,423 | +9.9% | 0.04% | +29.6% |
| Q3 2020 | $5,295,000 | -20.5% | 284,244 | -5.6% | 0.03% | -28.9% |
| Q2 2020 | $6,662,000 | +41.2% | 301,218 | -5.3% | 0.04% | +31.0% |
| Q1 2020 | $4,718,000 | -13.9% | 317,988 | +11.9% | 0.03% | +11.5% |
| Q4 2019 | $5,482,000 | – | 284,236 | – | 0.03% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| LAM GROUP, INC. | 130,250 | $4,884,375 | 4.79% |
| SHAKER INVESTMENTS LLC/OH | 82,253 | $3,084,488 | 1.72% |
| Mesirow Institutional Investment Management, Inc. | 325,669 | $12,212,588 | 1.33% |
| Portolan Capital Management | 340,593 | $12,772,238 | 1.22% |
| OBERWEIS ASSET MANAGEMENT INC/ | 178,200 | $6,682,500 | 1.04% |
| Granite Investment Partners, LLC | 536,821 | $20,130,788 | 0.84% |
| Capital Impact Advisors, LLC | 15,304 | $573,900 | 0.70% |
| Hillsdale Investment Management Inc. | 155,038 | $5,813,926 | 0.50% |
| GLOBEFLEX CAPITAL L P | 89,192 | $3,344,700 | 0.41% |
| Jackson Creek Investment Advisors LLC | 25,877 | $970 | 0.41% |