AMPHASTAR PHARMACEUTICALS IN's ticker is AMPH and the CUSIP is 03209R103. A total of 130 filers reported holding AMPHASTAR PHARMACEUTICALS IN in Q4 2020. The put-call ratio across all filers is - and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $37,239,263 | -17.0% | 809,626 | +3.8% | 0.00% | -20.0% |
| Q2 2023 | $44,841,503 | +57.3% | 780,259 | +2.7% | 0.01% | +25.0% |
| Q1 2023 | $28,499,300 | +140720.7% | 759,981 | +5.2% | 0.00% | +33.3% |
| Q4 2022 | $20,238 | -99.9% | 722,281 | +2.0% | 0.00% | 0.0% |
| Q3 2022 | $19,900,000 | -17.4% | 708,206 | +2.3% | 0.00% | -25.0% |
| Q2 2022 | $24,088,000 | -4.6% | 692,388 | -1.6% | 0.00% | +33.3% |
| Q1 2022 | $25,254,000 | +51.7% | 703,479 | -1.6% | 0.00% | +50.0% |
| Q4 2021 | $16,649,000 | +24.4% | 714,873 | +1.6% | 0.00% | 0.0% |
| Q3 2021 | $13,381,000 | -3.7% | 703,915 | +2.2% | 0.00% | 0.0% |
| Q2 2021 | $13,891,000 | +14.8% | 689,084 | +4.3% | 0.00% | 0.0% |
| Q1 2021 | $12,098,000 | +4.8% | 660,413 | +15.0% | 0.00% | 0.0% |
| Q4 2020 | $11,546,000 | +13.6% | 574,144 | +5.9% | 0.00% | 0.0% |
| Q3 2020 | $10,167,000 | -16.2% | 542,267 | +0.3% | 0.00% | -33.3% |
| Q2 2020 | $12,139,000 | +53.2% | 540,520 | +1.2% | 0.00% | +50.0% |
| Q1 2020 | $7,925,000 | -59.3% | 534,078 | -47.1% | 0.00% | 0.0% |
| Q4 2019 | $19,476,000 | +99.6% | 1,009,656 | +105.2% | 0.00% | 0.0% |
| Q3 2019 | $9,756,000 | -4.5% | 492,021 | +1.6% | 0.00% | 0.0% |
| Q2 2019 | $10,221,000 | +12.5% | 484,212 | +8.9% | 0.00% | 0.0% |
| Q1 2019 | $9,082,000 | -46.3% | 444,578 | -47.7% | 0.00% | -33.3% |
| Q4 2018 | $16,924,000 | +126.4% | 850,602 | +118.9% | 0.00% | +50.0% |
| Q3 2018 | $7,475,000 | +28.6% | 388,517 | +2.0% | 0.00% | 0.0% |
| Q2 2018 | $5,811,000 | -9.2% | 380,859 | +11.5% | 0.00% | 0.0% |
| Q1 2018 | $6,402,000 | -0.0% | 341,466 | +2.6% | 0.00% | 0.0% |
| Q4 2017 | $6,403,000 | +9.5% | 332,824 | +1.7% | 0.00% | 0.0% |
| Q3 2017 | $5,850,000 | +2.7% | 327,389 | +2.6% | 0.00% | 0.0% |
| Q2 2017 | $5,697,000 | +9.1% | 319,031 | -11.4% | 0.00% | 0.0% |
| Q1 2017 | $5,221,000 | -15.7% | 360,078 | +7.0% | 0.00% | -33.3% |
| Q4 2016 | $6,195,000 | -9.6% | 336,369 | -6.9% | 0.00% | 0.0% |
| Q3 2016 | $6,850,000 | +42.5% | 361,152 | +21.1% | 0.00% | 0.0% |
| Q2 2016 | $4,808,000 | +42.5% | 298,297 | +6.0% | 0.00% | +50.0% |
| Q1 2016 | $3,375,000 | -9.7% | 281,280 | +7.1% | 0.00% | 0.0% |
| Q4 2015 | $3,736,000 | +57.9% | 262,600 | +29.7% | 0.00% | +100.0% |
| Q3 2015 | $2,366,000 | +46.5% | 202,460 | +120.3% | 0.00% | 0.0% |
| Q2 2015 | $1,615,000 | +43.6% | 91,885 | +22.1% | 0.00% | 0.0% |
| Q1 2015 | $1,125,000 | +111.1% | 75,254 | +63.8% | 0.00% | – |
| Q4 2014 | $533,000 | +28.4% | 45,940 | +28.7% | 0.00% | – |
| Q3 2014 | $415,000 | – | 35,709 | – | 0.00% | – |
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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% |