AMPHASTAR PHARMACEUTICALS IN's ticker is AMPH and the CUSIP is 03209R103. A total of 138 filers reported holding AMPHASTAR PHARMACEUTICALS IN in Q4 2016. The put-call ratio across all filers is - and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $1,297,976 | -38.1% | 28,223 | -22.7% | 0.00% | -100.0% |
| Q2 2023 | $2,097,195 | +227.2% | 36,492 | +113.5% | 0.00% | – |
| Q1 2023 | $640,914 | +550.9% | 17,091 | +386.4% | 0.00% | – |
| Q4 2022 | $98,462 | -28.1% | 3,514 | -27.7% | 0.00% | – |
| Q3 2022 | $137,000 | -79.2% | 4,861 | -74.3% | 0.00% | – |
| Q2 2022 | $659,000 | -77.2% | 18,932 | -76.5% | 0.00% | -100.0% |
| Q1 2022 | $2,896,000 | +71.9% | 80,685 | +11.5% | 0.00% | – |
| Q4 2021 | $1,685,000 | -71.9% | 72,337 | -77.1% | 0.00% | -100.0% |
| Q3 2021 | $6,001,000 | -19.1% | 315,629 | -14.2% | 0.00% | -50.0% |
| Q2 2021 | $7,419,000 | +122.1% | 368,019 | +101.8% | 0.00% | +100.0% |
| Q1 2021 | $3,341,000 | -7.6% | 182,335 | +1.4% | 0.00% | 0.0% |
| Q4 2020 | $3,615,000 | -7.8% | 179,736 | -14.0% | 0.00% | 0.0% |
| Q3 2020 | $3,920,000 | -25.3% | 209,040 | -10.6% | 0.00% | -50.0% |
| Q2 2020 | $5,249,000 | +253.5% | 233,710 | +133.5% | 0.00% | +100.0% |
| Q1 2020 | $1,485,000 | -59.2% | 100,092 | -47.0% | 0.00% | 0.0% |
| Q4 2019 | $3,640,000 | +4.6% | 188,728 | +7.5% | 0.00% | 0.0% |
| Q3 2019 | $3,481,000 | -20.0% | 175,545 | -14.8% | 0.00% | 0.0% |
| Q2 2019 | $4,351,000 | -16.7% | 206,110 | -19.4% | 0.00% | -50.0% |
| Q1 2019 | $5,226,000 | -2.5% | 255,844 | -5.0% | 0.00% | 0.0% |
| Q4 2018 | $5,359,000 | +15.5% | 269,328 | +11.7% | 0.00% | +100.0% |
| Q3 2018 | $4,638,000 | +54.0% | 241,037 | +22.2% | 0.00% | 0.0% |
| Q2 2018 | $3,011,000 | -16.5% | 197,310 | +2.6% | 0.00% | 0.0% |
| Q1 2018 | $3,606,000 | +6.3% | 192,369 | +9.1% | 0.00% | 0.0% |
| Q4 2017 | $3,392,000 | +175.5% | 176,323 | +156.1% | 0.00% | – |
| Q3 2017 | $1,231,000 | +1.5% | 68,837 | +1.3% | 0.00% | – |
| Q2 2017 | $1,213,000 | +1.3% | 67,969 | -17.8% | 0.00% | – |
| Q1 2017 | $1,198,000 | -24.1% | 82,665 | -3.5% | 0.00% | -100.0% |
| Q4 2016 | $1,579,000 | +56.3% | 85,680 | +61.0% | 0.00% | – |
| Q3 2016 | $1,010,000 | +124.9% | 53,213 | +91.0% | 0.00% | – |
| Q2 2016 | $449,000 | +109.8% | 27,864 | +56.4% | 0.00% | – |
| Q1 2016 | $214,000 | +18.2% | 17,820 | +40.3% | 0.00% | – |
| Q4 2015 | $181,000 | +105.7% | 12,704 | +69.3% | 0.00% | – |
| Q3 2015 | $88,000 | -29.6% | 7,502 | +5.8% | 0.00% | – |
| Q2 2015 | $125,000 | -67.9% | 7,089 | -72.7% | 0.00% | – |
| Q1 2015 | $390,000 | +7700.0% | 26,008 | +5976.6% | 0.00% | – |
| Q4 2014 | $5,000 | – | 428 | – | 0.00% | – |
Download | ||||||
Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| LAM GROUP, INC. | 130,250 | $4,884,375 | 4.79% |
| SHAKER INVESTMENTS LLC/OH | 82,253 | $3,084,488 | 1.72% |
| Mesirow Institutional Investment Management, Inc. | 325,669 | $12,212,588 | 1.33% |
| Portolan Capital Management | 340,593 | $12,772,238 | 1.22% |
| OBERWEIS ASSET MANAGEMENT INC/ | 178,200 | $6,682,500 | 1.04% |
| Granite Investment Partners, LLC | 536,821 | $20,130,788 | 0.84% |
| Capital Impact Advisors, LLC | 15,304 | $573,900 | 0.70% |
| Hillsdale Investment Management Inc. | 155,038 | $5,813,926 | 0.50% |
| GLOBEFLEX CAPITAL L P | 89,192 | $3,344,700 | 0.41% |
| Jackson Creek Investment Advisors LLC | 25,877 | $970 | 0.41% |