AMPHASTAR PHARMACEUTICALS IN's ticker is AMPH and the CUSIP is 03209R103. A total of 250 filers reported holding AMPHASTAR PHARMACEUTICALS IN in Q3 2023. The put-call ratio across all filers is 1.02 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $1,262,104 | -18.9% | 27,443 | +1.3% | 0.01% | -16.7% |
| Q2 2023 | $1,556,575 | +56.8% | 27,085 | +2.3% | 0.01% | +50.0% |
| Q1 2023 | $992,813 | +254.3% | 26,475 | +164.8% | 0.00% | +300.0% |
| Q4 2022 | $280,200 | -15.1% | 10,000 | -14.9% | 0.00% | -50.0% |
| Q3 2022 | $330,000 | -19.3% | 11,755 | 0.0% | 0.00% | 0.0% |
| Q2 2022 | $409,000 | +102.5% | 11,755 | +108.6% | 0.00% | +100.0% |
| Q1 2022 | $202,000 | -24.6% | 5,635 | -60.0% | 0.00% | -50.0% |
| Q3 2016 | $268,000 | +22.4% | 14,105 | +3.8% | 0.00% | 0.0% |
| Q2 2016 | $219,000 | +21.7% | 13,585 | -9.6% | 0.00% | 0.0% |
| Q1 2016 | $180,000 | – | 15,035 | – | 0.00% | – |
Download | ||||||
Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| FRIESS ASSOCIATES LLC | 97,760 | $3,401,000 | 5.68% |
| Nantahala Capital Management | 1,000,000 | $34,790,000 | 1.74% |
| MESIROW FINANCIAL INVESTMENT MANAGEMENT - Fixed Income | 341,294 | $11,874,000 | 1.52% |
| Portolan Capital Management | 274,889 | $9,563,000 | 0.96% |
| Quantedge Capital Pte Ltd | 121,500 | $4,227,000 | 0.85% |
| SHAKER INVESTMENTS LLC/OH | 37,117 | $1,291,000 | 0.82% |
| GLOBEFLEX CAPITAL L P | 72,253 | $2,514,000 | 0.61% |
| EAM Investors, LLC | 68,855 | $2,395,000 | 0.58% |
| Hillsdale Investment Management Inc. | 197,738 | $6,879,000 | 0.55% |
| Capital Impact Advisors, LLC | 13,835 | $481,000 | 0.44% |