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 | $4,918,630 | -21.8% | 106,950 | -2.3% | 0.00% | 0.0% |
| Q2 2023 | $6,288,657 | +77.0% | 109,425 | +15.5% | 0.00% | +100.0% |
| Q1 2023 | $3,553,575 | +37.0% | 94,762 | +2.3% | 0.00% | 0.0% |
| Q4 2022 | $2,594,371 | +0.9% | 92,590 | +1.3% | 0.00% | 0.0% |
| Q3 2022 | $2,570,000 | -17.2% | 91,440 | +2.5% | 0.00% | 0.0% |
| Q2 2022 | $3,105,000 | -0.8% | 89,234 | +2.3% | 0.00% | 0.0% |
| Q1 2022 | $3,130,000 | +52.9% | 87,191 | -0.8% | 0.00% | 0.0% |
| Q4 2021 | $2,047,000 | +26.4% | 87,875 | +3.1% | 0.00% | 0.0% |
| Q3 2021 | $1,620,000 | +4.9% | 85,269 | +11.3% | 0.00% | 0.0% |
| Q2 2021 | $1,544,000 | -16.9% | 76,601 | -24.5% | 0.00% | 0.0% |
| Q1 2021 | $1,858,000 | -8.4% | 101,407 | +0.5% | 0.00% | 0.0% |
| Q4 2020 | $2,028,000 | +8.0% | 100,861 | +0.7% | 0.00% | 0.0% |
| Q3 2020 | $1,878,000 | -10.4% | 100,160 | +7.3% | 0.00% | 0.0% |
| Q2 2020 | $2,097,000 | +62.6% | 93,384 | +7.5% | 0.00% | 0.0% |
| Q1 2020 | $1,290,000 | -22.9% | 86,898 | +0.2% | 0.00% | 0.0% |
| Q4 2019 | $1,674,000 | +3.7% | 86,737 | +6.5% | 0.00% | 0.0% |
| Q3 2019 | $1,614,000 | -8.2% | 81,411 | -2.2% | 0.00% | 0.0% |
| Q2 2019 | $1,759,000 | +5.1% | 83,284 | +1.7% | 0.00% | 0.0% |
| Q1 2019 | $1,673,000 | +13.0% | 81,884 | +10.3% | 0.00% | 0.0% |
| Q4 2018 | $1,481,000 | +3.9% | 74,261 | +0.0% | 0.00% | 0.0% |
| Q3 2018 | $1,425,000 | +29.5% | 74,224 | +3.6% | 0.00% | 0.0% |
| Q2 2018 | $1,100,000 | -10.2% | 71,656 | +9.1% | 0.00% | 0.0% |
| Q1 2018 | $1,225,000 | -3.0% | 65,680 | +0.1% | 0.00% | 0.0% |
| Q4 2017 | $1,263,000 | +7.4% | 65,586 | -0.3% | 0.00% | 0.0% |
| Q3 2017 | $1,176,000 | +1.5% | 65,812 | +1.4% | 0.00% | 0.0% |
| Q2 2017 | $1,159,000 | +35.4% | 64,901 | +10.1% | 0.00% | 0.0% |
| Q1 2017 | $856,000 | -21.4% | 58,974 | -0.3% | 0.00% | 0.0% |
| Q4 2016 | $1,089,000 | +94.1% | 59,128 | +99.4% | 0.00% | 0.0% |
| Q3 2016 | $561,000 | +516.5% | 29,649 | +420.6% | 0.00% | – |
| Q2 2016 | $91,000 | +31.9% | 5,695 | 0.0% | 0.00% | – |
| Q1 2016 | $69,000 | -14.8% | 5,695 | 0.0% | 0.00% | – |
| Q4 2015 | $81,000 | +28.6% | 5,695 | 0.0% | 0.00% | – |
| Q3 2015 | $63,000 | -36.4% | 5,695 | 0.0% | 0.00% | – |
| Q2 2015 | $99,000 | – | 5,695 | – | 0.00% | – |
Download | ||||||
Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| LAM GROUP, INC. | 130,250 | $3,649,605 | 3.75% |
| SHAKER INVESTMENTS LLC/OH | 81,287 | $2,277,662 | 1.41% |
| Mesirow Institutional Investment Management, Inc. | 374,414 | $10,491,080 | 1.38% |
| OBERWEIS ASSET MANAGEMENT INC/ | 134,000 | $3,754,680 | 0.80% |
| Portolan Capital Management | 270,791 | $7,587,564 | 0.75% |
| Hillsdale Investment Management Inc. | 172,238 | $4,826,109 | 0.41% |
| Capital Impact Advisors, LLC | 14,669 | $411,025 | 0.40% |
| Watershed Asset Management, L.L.C. | 9,555 | $267,731 | 0.34% |
| Quantedge Capital Pte Ltd | 35,153 | $984,987 | 0.33% |
| FEDERATED HERMES, INC. | 3,284,217 | $92,023,760 | 0.25% |