AMPHASTAR PHARMACEUTICALS IN's ticker is AMPH and the CUSIP is 03209R103. A total of 130 filers reported holding AMPHASTAR PHARMACEUTICALS IN in Q4 2020. The put-call ratio across all filers is - and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $1,233,538 | -29.0% | 26,822 | -11.2% | 0.00% | – |
| Q2 2023 | $1,736,520 | -23.2% | 30,216 | -49.9% | 0.00% | – |
| Q1 2023 | $2,261,626 | +175.4% | 60,310 | +105.8% | 0.00% | – |
| Q4 2022 | $821,210 | -0.2% | 29,308 | +0.1% | 0.00% | – |
| Q3 2022 | $823,000 | -19.8% | 29,276 | -0.8% | 0.00% | – |
| Q2 2022 | $1,026,000 | -3.6% | 29,507 | -0.4% | 0.00% | – |
| Q1 2022 | $1,064,000 | +35366.7% | 29,625 | +23600.0% | 0.00% | – |
| Q2 2021 | $3,000 | +50.0% | 125 | 0.0% | 0.00% | – |
| Q1 2021 | $2,000 | +100.0% | 125 | +150.0% | 0.00% | – |
| Q3 2020 | $1,000 | – | 50 | +614.3% | 0.00% | – |
| Q1 2020 | $0 | – | 7 | 0.0% | 0.00% | – |
| Q4 2019 | $0 | -100.0% | 7 | -85.7% | 0.00% | – |
| Q3 2019 | $1,000 | -66.7% | 49 | -67.3% | 0.00% | – |
| Q1 2019 | $3,000 | -99.9% | 150 | -99.9% | 0.00% | – |
| Q4 2017 | $2,855,000 | -35.1% | 148,408 | -51.1% | 0.00% | -100.0% |
| Q1 2017 | $4,397,000 | -81.9% | 303,257 | -77.0% | 0.00% | -66.7% |
| Q4 2016 | $24,269,000 | -36.9% | 1,317,541 | -35.0% | 0.00% | -40.0% |
| Q3 2016 | $38,464,000 | -0.5% | 2,027,627 | -15.5% | 0.01% | 0.0% |
| Q2 2016 | $38,664,000 | +29.5% | 2,398,531 | -3.6% | 0.01% | +25.0% |
| Q1 2016 | $29,858,000 | -0.2% | 2,488,161 | +18.4% | 0.00% | 0.0% |
| Q4 2015 | $29,911,000 | +18.7% | 2,101,956 | -2.5% | 0.00% | 0.0% |
| Q3 2015 | $25,195,000 | -23.1% | 2,155,302 | +15.7% | 0.00% | 0.0% |
| Q2 2015 | $32,754,000 | +2089.4% | 1,863,161 | +1763.2% | 0.00% | – |
| Q1 2015 | $1,496,000 | +28.9% | 100,000 | 0.0% | 0.00% | – |
| Q4 2014 | $1,161,000 | -0.3% | 100,000 | 0.0% | 0.00% | – |
| Q3 2014 | $1,165,000 | – | 100,000 | – | 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% |