AMPHASTAR PHARMACEUTICALS IN's ticker is AMPH and the CUSIP is 03209R103. A total of 204 filers reported holding AMPHASTAR PHARMACEUTICALS IN in Q1 2022. The put-call ratio across all filers is 16.41 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $975 | +3.3% | 20,848 | +24.1% | 0.00% | 0.0% |
| Q2 2023 | $944 | +51.3% | 16,800 | 0.0% | 0.00% | 0.0% |
| Q1 2023 | $624 | +32.8% | 16,800 | 0.0% | 0.00% | +100.0% |
| Q4 2022 | $470 | -99.9% | 16,800 | 0.0% | 0.00% | 0.0% |
| Q3 2022 | $477,000 | -17.6% | 16,800 | 0.0% | 0.00% | -50.0% |
| Q2 2022 | $579,000 | -5.4% | 16,800 | 0.0% | 0.00% | +100.0% |
| Q1 2022 | $612,000 | +74.4% | 16,800 | +9.8% | 0.00% | 0.0% |
| Q4 2021 | $351,000 | +24.0% | 15,300 | +2.7% | 0.00% | 0.0% |
| Q3 2021 | $283,000 | -5.4% | 14,900 | 0.0% | 0.00% | 0.0% |
| Q2 2021 | $299,000 | +12.4% | 14,900 | 0.0% | 0.00% | 0.0% |
| Q1 2021 | $266,000 | -11.0% | 14,900 | 0.0% | 0.00% | 0.0% |
| Q4 2020 | $299,000 | +9.1% | 14,900 | 0.0% | 0.00% | 0.0% |
| Q3 2020 | $274,000 | -11.9% | 14,900 | -3.2% | 0.00% | -50.0% |
| Q3 2019 | $311,000 | -75.5% | 15,400 | -74.7% | 0.00% | -66.7% |
| Q2 2019 | $1,268,000 | +268.6% | 60,800 | +225.1% | 0.01% | +200.0% |
| Q1 2019 | $344,000 | +12.1% | 18,700 | +21.4% | 0.00% | 0.0% |
| Q4 2018 | $307,000 | -10.8% | 15,400 | -17.6% | 0.00% | 0.0% |
| Q3 2018 | $344,000 | +15.4% | 18,700 | -2.6% | 0.00% | 0.0% |
| Q2 2018 | $298,000 | -16.1% | 19,200 | 0.0% | 0.00% | 0.0% |
| Q1 2018 | $355,000 | -3.0% | 19,200 | -22.0% | 0.00% | -33.3% |
| Q4 2017 | $366,000 | 0.0% | 24,600 | 0.0% | 0.00% | 0.0% |
| Q3 2017 | $366,000 | -15.5% | 24,600 | 0.0% | 0.00% | 0.0% |
| Q2 2017 | $433,000 | +19.6% | 24,600 | 0.0% | 0.00% | 0.0% |
| Q1 2017 | $362,000 | -26.6% | 24,600 | -7.5% | 0.00% | -40.0% |
| Q4 2016 | $493,000 | +6.5% | 26,600 | +8.1% | 0.01% | 0.0% |
| Q3 2016 | $463,000 | +16.9% | 24,600 | 0.0% | 0.01% | 0.0% |
| Q2 2016 | $396,000 | +69.2% | 24,600 | +25.5% | 0.01% | +66.7% |
| Q1 2016 | $234,000 | -29.3% | 19,600 | -15.2% | 0.00% | -25.0% |
| Q4 2015 | $331,000 | +25.9% | 23,100 | +2.7% | 0.00% | +33.3% |
| Q3 2015 | $263,000 | -31.0% | 22,500 | +3.7% | 0.00% | -40.0% |
| Q2 2015 | $381,000 | +21.7% | 21,700 | +3.8% | 0.01% | +25.0% |
| Q1 2015 | $313,000 | – | 20,900 | – | 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% |