AMPHASTAR PHARMACEUTICALS IN's ticker is AMPH and the CUSIP is 03209R103. A total of 204 filers reported holding AMPHASTAR PHARMACEUTICALS IN in Q1 2022. The put-call ratio across all filers is 16.41 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $6,200,924 | -15.9% | 134,832 | +5.1% | 0.00% | 0.0% |
| Q2 2023 | $7,374,206 | -32.4% | 128,314 | -55.9% | 0.00% | 0.0% |
| Q1 2023 | $10,902,638 | +498.5% | 290,737 | +347.2% | 0.00% | – |
| Q4 2022 | $1,821,551 | -27.0% | 65,009 | -26.8% | 0.00% | – |
| Q3 2022 | $2,495,000 | -14.6% | 88,767 | +5.8% | 0.00% | – |
| Q2 2022 | $2,920,000 | +32.9% | 83,907 | +37.0% | 0.00% | – |
| Q1 2022 | $2,197,000 | +67.5% | 61,229 | +8.7% | 0.00% | – |
| Q4 2021 | $1,312,000 | +21.7% | 56,325 | -0.8% | 0.00% | – |
| Q3 2021 | $1,078,000 | -15.1% | 56,767 | -9.8% | 0.00% | – |
| Q2 2021 | $1,269,000 | +4.0% | 62,936 | -5.5% | 0.00% | – |
| Q1 2021 | $1,220,000 | -39.5% | 66,614 | -33.6% | 0.00% | – |
| Q4 2020 | $2,016,000 | -7.9% | 100,284 | -14.1% | 0.00% | – |
| Q3 2020 | $2,190,000 | -18.0% | 116,739 | -1.8% | 0.00% | – |
| Q2 2020 | $2,670,000 | +219.0% | 118,857 | +110.8% | 0.00% | – |
| Q1 2020 | $837,000 | +21.8% | 56,385 | +58.4% | 0.00% | – |
| Q4 2019 | $687,000 | -68.3% | 35,606 | -67.4% | 0.00% | – |
| Q3 2019 | $2,166,000 | +93.6% | 109,221 | +106.0% | 0.00% | – |
| Q2 2019 | $1,119,000 | -24.1% | 53,019 | -26.5% | 0.00% | – |
| Q1 2019 | $1,474,000 | +224.7% | 72,154 | +216.4% | 0.00% | – |
| Q4 2018 | $454,000 | +64.5% | 22,808 | +58.8% | 0.00% | – |
| Q3 2018 | $276,000 | +42.3% | 14,363 | +13.4% | 0.00% | – |
| Q2 2018 | $194,000 | -42.1% | 12,661 | -29.4% | 0.00% | – |
| Q1 2018 | $335,000 | +39.6% | 17,926 | +43.8% | 0.00% | – |
| Q4 2017 | $240,000 | -75.1% | 12,462 | -76.9% | 0.00% | – |
| Q3 2017 | $963,000 | -1.0% | 53,901 | -1.0% | 0.00% | – |
| Q2 2017 | $973,000 | -2.9% | 54,472 | -21.1% | 0.00% | – |
| Q1 2017 | $1,002,000 | +41.1% | 69,075 | +79.2% | 0.00% | – |
| Q4 2016 | $710,000 | +212.8% | 38,556 | +221.9% | 0.00% | – |
| Q3 2016 | $227,000 | +10.7% | 11,979 | -6.1% | 0.00% | – |
| Q2 2016 | $205,000 | +1038.9% | 12,760 | +736.7% | 0.00% | – |
| Q1 2016 | $18,000 | -87.1% | 1,525 | -84.4% | 0.00% | – |
| Q4 2015 | $140,000 | +600.0% | 9,790 | +475.9% | 0.00% | – |
| Q3 2015 | $20,000 | -63.0% | 1,700 | -44.8% | 0.00% | – |
| Q2 2015 | $54,000 | +5300.0% | 3,079 | +7597.5% | 0.00% | – |
| Q1 2015 | $1,000 | – | 40 | – | 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% |