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 | $923,571 | +2.4% | 20,082 | +27.9% | 0.00% | 0.0% |
| Q2 2023 | $902,336 | +54.6% | 15,701 | +0.9% | 0.00% | – |
| Q1 2023 | $583,500 | +34.4% | 15,560 | +0.4% | 0.00% | – |
| Q4 2022 | $434,058 | -1.0% | 15,491 | -0.7% | 0.00% | – |
| Q3 2022 | $438,388 | -18.9% | 15,601 | +0.4% | 0.00% | – |
| Q2 2022 | $540,637 | -2.4% | 15,540 | +0.7% | 0.00% | – |
| Q1 2022 | $553,793 | +21.2% | 15,426 | -21.5% | 0.00% | – |
| Q4 2021 | $457,000 | +17.8% | 19,642 | -3.9% | 0.00% | – |
| Q3 2021 | $388,000 | -11.2% | 20,436 | -5.8% | 0.00% | – |
| Q2 2021 | $437,000 | +10.4% | 21,695 | +0.3% | 0.00% | – |
| Q1 2021 | $396,000 | -10.6% | 21,633 | -1.9% | 0.00% | – |
| Q4 2020 | $443,000 | +8.8% | 22,041 | +1.6% | 0.00% | – |
| Q3 2020 | $407,000 | -15.2% | 21,698 | 0.0% | 0.00% | – |
| Q2 2020 | $480,000 | +37.1% | 21,698 | -7.9% | 0.00% | – |
| Q1 2020 | $350,000 | -18.4% | 23,561 | +6.1% | 0.00% | – |
| Q4 2019 | $429,000 | -8.3% | 22,214 | -4.0% | 0.00% | -100.0% |
| Q3 2019 | $468,000 | -4.7% | 23,131 | -0.5% | 0.00% | 0.0% |
| Q2 2019 | $491,000 | +1.7% | 23,243 | -1.7% | 0.00% | 0.0% |
| Q1 2019 | $483,000 | +3.9% | 23,644 | +1.2% | 0.00% | 0.0% |
| Q4 2018 | $465,000 | -2.5% | 23,361 | -5.7% | 0.00% | 0.0% |
| Q3 2018 | $477,000 | +11.7% | 24,780 | -11.2% | 0.00% | – |
| Q2 2018 | $427,000 | -18.0% | 27,913 | +0.5% | 0.00% | -100.0% |
| Q1 2018 | $521,000 | -5.3% | 27,787 | -2.8% | 0.00% | 0.0% |
| Q4 2017 | $550,000 | +7.8% | 28,600 | +0.0% | 0.00% | 0.0% |
| Q3 2017 | $510,000 | -0.4% | 28,588 | -0.4% | 0.00% | 0.0% |
| Q2 2017 | $512,000 | +24.3% | 28,701 | +1.1% | 0.00% | 0.0% |
| Q1 2017 | $412,000 | -10.2% | 28,389 | +13.7% | 0.00% | 0.0% |
| Q4 2016 | $459,000 | -4.4% | 24,958 | -1.4% | 0.00% | 0.0% |
| Q3 2016 | $480,000 | +17.6% | 25,314 | -0.1% | 0.00% | 0.0% |
| Q2 2016 | $408,000 | +56.3% | 25,337 | +16.0% | 0.00% | – |
| Q1 2016 | $261,000 | -16.3% | 21,845 | -0.4% | 0.00% | – |
| Q4 2015 | $312,000 | +24.8% | 21,935 | +2.5% | 0.00% | – |
| Q3 2015 | $250,000 | -32.8% | 21,394 | +1.1% | 0.00% | – |
| Q2 2015 | $372,000 | +383.1% | 21,158 | +311.8% | 0.00% | – |
| Q1 2015 | $77,000 | +381.2% | 5,138 | +282.9% | 0.00% | – |
| Q4 2014 | $16,000 | +433.3% | 1,342 | +364.4% | 0.00% | – |
| Q3 2014 | $3,000 | – | 289 | – | 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% |