AMPHASTAR PHARMACEUTICALS IN's ticker is AMPH and the CUSIP is 03209R103. A total of 138 filers reported holding AMPHASTAR PHARMACEUTICALS IN in Q4 2016. The put-call ratio across all filers is - and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $774 | -73.8% | 16,820 | -67.3% | 0.04% | -72.1% |
| Q2 2023 | $2,953 | +159.7% | 51,380 | +69.5% | 0.13% | +138.9% |
| Q1 2023 | $1,137 | +369.8% | 30,320 | +250.4% | 0.05% | +315.4% |
| Q4 2022 | $242 | -100.0% | 8,653 | -75.6% | 0.01% | -78.3% |
| Q3 2022 | $998,000 | -6.6% | 35,523 | +15.6% | 0.06% | -25.0% |
| Q2 2022 | $1,069,000 | +109.2% | 30,733 | +115.8% | 0.08% | +142.4% |
| Q1 2022 | $511,000 | -15.3% | 14,243 | -55.2% | 0.03% | -81.0% |
| Q3 2016 | $603,000 | – | 31,761 | – | 0.17% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| Alambic Investment Management, L.P. | 29,423 | $583,000 | 0.44% |
| Matarin Capital Management, LLC | 223,184 | $4,426,000 | 0.34% |
| Summit Global Investments | 42,725 | $847,000 | 0.10% |
| FEDERATED HERMES, INC. | 1,747,921 | $34,661,000 | 0.08% |
| ROTHSCHILD & CO ASSET MANAGEMENT US INC. | 347,307 | $6,887,000 | 0.08% |
| MARSHALL WACE, LLP | 413,293 | $8,196,000 | 0.06% |
| BOSTON ADVISORS LLC | 42,365 | $840,000 | 0.04% |
| MARTINGALE ASSET MANAGEMENT L P | 214,444 | $4,254,000 | 0.04% |
| JACOBS LEVY EQUITY MANAGEMENT, INC | 177,321 | $3,516,000 | 0.04% |
| SILVERCREST ASSET MANAGEMENT GROUP LLC | 231,041 | $4,582,000 | 0.04% |