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 | $925,641 | -19.5% | 20,127 | +0.7% | 0.00% | 0.0% |
| Q2 2023 | $1,149,228 | +55.6% | 19,997 | +1.5% | 0.00% | 0.0% |
| Q1 2023 | $738,600 | +33.8% | 19,696 | 0.0% | 0.00% | 0.0% |
| Q4 2022 | $551,882 | -0.3% | 19,696 | 0.0% | 0.00% | 0.0% |
| Q3 2022 | $553,458 | -19.2% | 19,696 | 0.0% | 0.00% | -50.0% |
| Q2 2022 | $685,000 | -8.7% | 19,696 | -5.7% | 0.00% | 0.0% |
| Q1 2022 | $750,000 | -6.2% | 20,891 | -39.2% | 0.00% | 0.0% |
| Q4 2021 | $800,000 | +28.6% | 34,370 | +5.1% | 0.00% | +100.0% |
| Q3 2021 | $622,000 | +19.2% | 32,717 | +26.3% | 0.00% | 0.0% |
| Q2 2021 | $522,000 | +47.0% | 25,907 | +33.6% | 0.00% | 0.0% |
| Q1 2021 | $355,000 | +7.9% | 19,392 | +18.7% | 0.00% | 0.0% |
| Q4 2020 | $329,000 | +36.5% | 16,341 | +27.1% | 0.00% | 0.0% |
| Q3 2020 | $241,000 | -97.5% | 12,853 | -97.0% | 0.00% | -95.5% |
| Q2 2020 | $9,635,000 | +22.8% | 428,966 | -18.9% | 0.02% | +4.8% |
| Q1 2020 | $7,845,000 | -27.4% | 528,701 | -5.6% | 0.02% | -4.5% |
| Q4 2019 | $10,808,000 | -9.7% | 560,254 | -7.1% | 0.02% | -15.4% |
| Q3 2019 | $11,965,000 | +3503.9% | 603,377 | +3731.0% | 0.03% | +2500.0% |
| Q2 2019 | $332,000 | +4.7% | 15,750 | +1.6% | 0.00% | 0.0% |
| Q1 2019 | $317,000 | -1.6% | 15,505 | -4.1% | 0.00% | 0.0% |
| Q4 2018 | $322,000 | -58.1% | 16,160 | -59.5% | 0.00% | -50.0% |
| Q3 2018 | $768,000 | +25.9% | 39,942 | 0.0% | 0.00% | +100.0% |
| Q2 2018 | $610,000 | -46.7% | 39,942 | -34.6% | 0.00% | -50.0% |
| Q1 2018 | $1,145,000 | -2.6% | 61,084 | 0.0% | 0.00% | 0.0% |
| Q4 2017 | $1,175,000 | +7.6% | 61,084 | 0.0% | 0.00% | 0.0% |
| Q3 2017 | $1,092,000 | +0.1% | 61,084 | 0.0% | 0.00% | 0.0% |
| Q2 2017 | $1,091,000 | +9.2% | 61,084 | -11.3% | 0.00% | 0.0% |
| Q1 2017 | $999,000 | +12.6% | 68,864 | +43.0% | 0.00% | 0.0% |
| Q4 2016 | $887,000 | +223.7% | 48,160 | +233.5% | 0.00% | +100.0% |
| Q3 2016 | $274,000 | +17.6% | 14,440 | 0.0% | 0.00% | 0.0% |
| Q2 2016 | $233,000 | +34.7% | 14,440 | 0.0% | 0.00% | – |
| Q1 2016 | $173,000 | -15.6% | 14,440 | 0.0% | 0.00% | -100.0% |
| Q4 2015 | $205,000 | +21.3% | 14,440 | 0.0% | 0.00% | – |
| Q3 2015 | $169,000 | -33.5% | 14,440 | 0.0% | 0.00% | -100.0% |
| Q2 2015 | $254,000 | – | 14,440 | – | 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% |