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 | $1,221,311 | +243.5% | 26,556 | +329.3% | 0.00% | +100.0% |
| Q2 2023 | $355,506 | -34.3% | 6,186 | -57.1% | 0.00% | 0.0% |
| Q1 2023 | $540,840 | -24.9% | 14,422 | -43.7% | 0.00% | -50.0% |
| Q3 2022 | $720,000 | -66.0% | 25,632 | -57.7% | 0.00% | -60.0% |
| Q2 2022 | $2,115,000 | +46.3% | 60,625 | +51.2% | 0.01% | +66.7% |
| Q1 2022 | $1,446,000 | +30.4% | 40,107 | -27.3% | 0.00% | 0.0% |
| Q4 2020 | $1,109,000 | -34.0% | 55,158 | -38.5% | 0.00% | -40.0% |
| Q3 2020 | $1,681,000 | +6.8% | 89,658 | +27.9% | 0.01% | 0.0% |
| Q2 2020 | $1,574,000 | +43.2% | 70,094 | -5.3% | 0.01% | +25.0% |
| Q1 2020 | $1,099,000 | -30.4% | 74,049 | -9.5% | 0.00% | -20.0% |
| Q4 2019 | $1,578,000 | -5.8% | 81,823 | -3.1% | 0.01% | +25.0% |
| Q3 2019 | $1,675,000 | -6.1% | 84,483 | 0.0% | 0.00% | -33.3% |
| Q2 2019 | $1,783,000 | +40.1% | 84,483 | +35.6% | 0.01% | +50.0% |
| Q1 2019 | $1,273,000 | -35.4% | 62,295 | -38.5% | 0.00% | -42.9% |
| Q4 2018 | $1,972,000 | +50.9% | 101,341 | +49.2% | 0.01% | +40.0% |
| Q3 2018 | $1,307,000 | +26.0% | 67,934 | 0.0% | 0.01% | +25.0% |
| Q2 2018 | $1,037,000 | -14.5% | 67,934 | +4.9% | 0.00% | -20.0% |
| Q1 2018 | $1,213,000 | -6.1% | 64,741 | -3.6% | 0.01% | +25.0% |
| Q4 2017 | $1,292,000 | +0.1% | 67,175 | -7.0% | 0.00% | -20.0% |
| Q3 2017 | $1,291,000 | +0.1% | 72,251 | 0.0% | 0.01% | 0.0% |
| Q2 2017 | $1,290,000 | -13.7% | 72,251 | -29.9% | 0.01% | -28.6% |
| Q1 2017 | $1,495,000 | +14850.0% | 103,074 | +20071.0% | 0.01% | – |
| Q4 2016 | $10,000 | +25.0% | 511 | +27.8% | 0.00% | – |
| Q3 2016 | $8,000 | – | 400 | – | 0.00% | – |
Download | ||||||
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% |