AMPHASTAR PHARMACEUTICALS IN's ticker is AMPH and the CUSIP is 03209R103. A total of 135 filers reported holding AMPHASTAR PHARMACEUTICALS IN in Q1 2021. The put-call ratio across all filers is - and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $15,016,057 | -23.6% | 326,507 | -4.6% | 0.00% | -25.0% |
| Q2 2023 | $19,661,694 | +51.0% | 342,121 | -1.5% | 0.00% | +33.3% |
| Q1 2023 | $13,020,452 | +34.3% | 347,212 | +0.3% | 0.00% | +50.0% |
| Q4 2022 | $9,695,367 | -4.9% | 346,016 | -4.6% | 0.00% | 0.0% |
| Q3 2022 | $10,197,000 | -19.9% | 362,875 | -0.8% | 0.00% | -33.3% |
| Q2 2022 | $12,727,000 | -11.7% | 365,846 | -8.9% | 0.00% | 0.0% |
| Q1 2022 | $14,409,000 | +66.8% | 401,405 | +8.2% | 0.00% | +50.0% |
| Q4 2021 | $8,639,000 | +24.8% | 370,943 | +1.9% | 0.00% | +100.0% |
| Q3 2021 | $6,920,000 | -3.4% | 364,000 | +2.4% | 0.00% | 0.0% |
| Q2 2021 | $7,167,000 | +3.3% | 355,548 | -6.1% | 0.00% | 0.0% |
| Q1 2021 | $6,937,000 | -10.7% | 378,683 | -2.0% | 0.00% | -50.0% |
| Q4 2020 | $7,769,000 | +7.4% | 386,352 | +0.1% | 0.00% | 0.0% |
| Q3 2020 | $7,237,000 | -14.7% | 386,025 | +2.2% | 0.00% | 0.0% |
| Q2 2020 | $8,481,000 | +53.2% | 377,604 | +1.2% | 0.00% | 0.0% |
| Q1 2020 | $5,535,000 | -26.2% | 372,980 | -4.1% | 0.00% | 0.0% |
| Q4 2019 | $7,498,000 | -1.4% | 388,765 | +1.4% | 0.00% | 0.0% |
| Q3 2019 | $7,602,000 | -7.6% | 383,321 | -1.7% | 0.00% | 0.0% |
| Q2 2019 | $8,230,000 | +0.6% | 389,898 | -2.6% | 0.00% | 0.0% |
| Q1 2019 | $8,179,000 | -8.1% | 400,380 | -10.5% | 0.00% | -33.3% |
| Q4 2018 | $8,898,000 | +10.4% | 447,128 | +6.7% | 0.00% | +50.0% |
| Q3 2018 | $8,060,000 | +29.4% | 418,903 | +2.7% | 0.00% | 0.0% |
| Q2 2018 | $6,227,000 | -19.9% | 408,066 | -1.5% | 0.00% | 0.0% |
| Q1 2018 | $7,770,000 | -0.2% | 414,388 | +2.4% | 0.00% | 0.0% |
| Q4 2017 | $7,788,000 | -4.5% | 404,789 | -11.3% | 0.00% | 0.0% |
| Q3 2017 | $8,152,000 | -4.6% | 456,156 | -4.7% | 0.00% | 0.0% |
| Q2 2017 | $8,549,000 | +13.4% | 478,646 | -7.9% | 0.00% | 0.0% |
| Q1 2017 | $7,536,000 | -12.3% | 519,802 | +11.4% | 0.00% | 0.0% |
| Q4 2016 | $8,595,000 | +4.2% | 466,588 | +7.3% | 0.00% | 0.0% |
| Q3 2016 | $8,246,000 | +168.1% | 434,724 | +127.8% | 0.00% | +100.0% |
| Q2 2016 | $3,076,000 | +100.1% | 190,849 | +49.0% | 0.00% | – |
| Q1 2016 | $1,537,000 | -13.6% | 128,118 | +2.5% | 0.00% | -100.0% |
| Q4 2015 | $1,778,000 | +21.7% | 124,942 | 0.0% | 0.00% | – |
| Q3 2015 | $1,461,000 | -32.2% | 124,942 | +2.0% | 0.00% | -100.0% |
| Q2 2015 | $2,154,000 | +313.4% | 122,513 | +252.1% | 0.00% | – |
| Q1 2015 | $521,000 | +64.9% | 34,791 | +27.8% | 0.00% | – |
| Q4 2014 | $316,000 | +28.5% | 27,217 | +29.3% | 0.00% | – |
| Q3 2014 | $246,000 | – | 21,042 | – | 0.00% | – |
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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% |