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Amphastar Pharma Stock Short Interest Report | NASDAQ:AMPH | Benzinga
Short interest in Amphastar Pharmaceuticals Inc (NASDAQ:AMPH) decreased during the last reporting period, falling from 3.42M to 2.97M. This put 12.29% of the company's publicly available shares short.
Short interest in Amphastar Pharma Corp (XNAS:AMPH) decreased during the last reporting period, falling from 280.30M to 275.20M. This put 1.17% of the company's publicly available shares short.
Based on the recent average volume of 784.37K shares traded per day, it would take 3.78 day(s) for holders of this short interest to close out their positions without sending the stock sharply higher.
Short Interest
2.97M
Short Interest %
12.3%
Days to Cover
3.78
| Get Alert | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| AMPH | Amphastar Pharmaceuticals, Inc | 04/15/2025 | 04/25/2025 | 12.29% | 24,151,817 | 2,967,637 | 784,370 | 3.78 | Get Alert |
| AMPH | Amphastar Pharmaceuticals, Inc | 03/31/2025 | 04/09/2025 | 10.94% | 31,281,427 | 3,422,379 | 601,463 | 5.69 | Get Alert |
| AMPH | Amphastar Pharmaceuticals, Inc | 03/14/2025 | 03/25/2025 | 12.32% | 31,281,427 | 3,852,850 | 636,431 | 6.05 | Get Alert |
| AMPH | Amphastar Pharmaceuticals, Inc | 02/28/2025 | 03/11/2025 | 13.20% | 31,281,427 | 4,128,332 | 736,476 | 5.61 | Get Alert |
| AMPH | Amphastar Pharmaceuticals, Inc | 02/14/2025 | 02/26/2025 | 13.02% | 31,281,427 | 4,072,042 | 401,414 | 10.14 | Get Alert |
| AMPH | Amphastar Pharmaceuticals, Inc | 01/31/2025 | 02/11/2025 | 13.17% | 31,281,427 | 4,119,788 | 490,819 | 8.39 | Get Alert |
| AMPH | Amphastar Pharmaceuticals, Inc | 01/15/2025 | 01/27/2025 | 14.71% | 31,281,427 | 4,600,052 | 657,526 | 7 | Get Alert |
| AMPH | Amphastar Pharmaceuticals, Inc | 12/31/2024 | 01/10/2025 | 15.39% | 31,281,427 | 4,815,210 | 718,031 | 6.71 | Get Alert |
| AMPH | Amphastar Pharmaceuticals, Inc | 12/13/2024 | 12/24/2024 | 13.96% | 31,281,427 | 4,365,856 | 484,849 | 9 | Get Alert |
| AMPH | Amphastar Pharmaceuticals, Inc | 11/29/2024 | 12/10/2024 | 13.18% | 31,281,427 | 4,124,250 | 411,610 | 10.02 | Get Alert |
| AMPH | Amphastar Pharmaceuticals, Inc | 11/15/2024 | 11/26/2024 | 13.54% | 31,281,427 | 4,235,323 | 476,198 | 8.89 | Get Alert |
| AMPH | Amphastar Pharmaceuticals, Inc | 10/31/2024 | 11/11/2024 | 13.88% | 31,281,427 | 4,341,583 | 267,396 | 16.24 | Get Alert |
| AMPH | Amphastar Pharmaceuticals, Inc | 10/15/2024 | 10/24/2024 | 13.19% | 32,101,959 | 4,232,894 | 273,281 | 15.49 | Get Alert |
| AMPH | Amphastar Pharmaceuticals, Inc | 09/30/2024 | 10/09/2024 | 13.56% | 32,101,959 | 4,352,216 | 361,534 | 12.04 | Get Alert |
| AMPH | Amphastar Pharmaceuticals, Inc | 09/13/2024 | 09/24/2024 | 12.85% | 32,101,959 | 4,126,510 | 370,270 | 11.14 | Get Alert |
| AMPH | Amphastar Pharmaceuticals, Inc | 08/30/2024 | 09/11/2024 | 13.11% | 32,101,959 | 4,208,460 | 319,689 | 13.16 | Get Alert |
| AMPH | Amphastar Pharmaceuticals, Inc | 08/15/2024 | 08/26/2024 | 13.11% | 32,101,959 | 4,209,460 | 437,825 | 9.61 | Get Alert |
| AMPH | Amphastar Pharmaceuticals, Inc | 07/31/2024 | 08/09/2024 | 14.16% | 32,101,959 | 4,546,013 | 374,038 | 12.15 | Get Alert |
| AMPH | Amphastar Pharmaceuticals, Inc | 07/15/2024 | 07/24/2024 | 13.19% | 32,101,959 | 4,234,643 | 455,443 | 9.3 | Get Alert |
| AMPH | Amphastar Pharmaceuticals, Inc | 06/28/2024 | 07/10/2024 | 12.98% | 32,101,959 | 4,167,480 | 330,058 | 12.63 | Get Alert |
| AMPH | Amphastar Pharmaceuticals, Inc | 06/14/2024 | 06/26/2024 | 12.92% | 32,101,959 | 4,146,983 | 378,909 | 10.94 | Get Alert |
| AMPH | Amphastar Pharmaceuticals, Inc | 05/31/2024 | 06/11/2024 | 11.73% | 32,101,959 | 3,764,831 | 282,364 | 13.33 | Get Alert |
| AMPH | Amphastar Pharmaceuticals, Inc | 05/15/2024 | 05/24/2024 | 11.74% | 32,101,959 | 3,769,533 | 397,537 | 9.48 | Get Alert |
| AMPH | Amphastar Pharmaceuticals, Inc | 04/30/2024 | 05/09/2024 | 12.42% | 32,101,959 | 3,987,025 | 316,652 | 12.59 | Get Alert |
| AMPH | Amphastar Pharmaceuticals, Inc | 04/15/2024 | 04/24/2024 | 12.06% | 32,065,932 | 3,866,483 | 340,376 | 11.36 | Get Alert |
| AMPH | Amphastar Pharmaceuticals, Inc | 03/28/2024 | 04/09/2024 | 12.07% | 30,435,220 | 3,674,842 | 351,660 | 10.45 | Get Alert |
| AMPH | Amphastar Pharmaceuticals, Inc | 03/15/2024 | 03/26/2024 | 11.81% | 30,435,220 | 3,595,530 | 572,698 | 6.28 | Get Alert |
| AMPH | Amphastar Pharmaceuticals, Inc | 02/29/2024 | 03/11/2024 | 12.22% | 30,435,220 | 3,720,310 | 551,482 | 6.75 | Get Alert |
| AMPH | Amphastar Pharmaceuticals, Inc | 02/15/2024 | 02/27/2024 | 11.88% | 30,246,769 | 3,593,022 | 367,840 | 9.77 | Get Alert |
| AMPH | Amphastar Pharmaceuticals, Inc | 01/31/2024 | 02/09/2024 | 10.56% | 30,246,769 | 3,194,684 | 412,914 | 7.74 | Get Alert |
| AMPH | Amphastar Pharmaceuticals, Inc | 01/12/2024 | 01/24/2024 | 9.73% | 30,246,769 | 2,944,087 | 684,797 | 4.3 | Get Alert |
| AMPH | Amphastar Pharmaceuticals, Inc | 12/29/2023 | 01/10/2024 | 9.20% | 30,246,769 | 2,781,357 | 362,050 | 7.68 | Get Alert |
| AMPH | Amphastar Pharmaceuticals, Inc | 12/15/2023 | 12/27/2023 | 9.35% | 30,246,769 | 2,827,421 | 537,740 | 5.26 | Get Alert |
| AMPH | Amphastar Pharmaceuticals, Inc | 11/30/2023 | 12/11/2023 | 9.42% | 30,246,769 | 2,849,167 | 365,694 | 7.79 | Get Alert |
| AMPH | Amphastar Pharmaceuticals, Inc | 11/15/2023 | 11/27/2023 | 9.56% | 30,246,769 | 2,891,180 | 518,542 | 5.58 | Get Alert |
| AMPH | Amphastar Pharmaceuticals, Inc | 10/31/2023 | 11/09/2023 | 8.27% | 30,246,769 | 2,502,884 | 285,162 | 8.78 | Get Alert |
| AMPH | Amphastar Pharmaceuticals, Inc | 10/13/2023 | 10/24/2023 | 8.52% | 31,194,960 | 2,656,364 | 345,343 | 7.69 | Get Alert |
| AMPH | Amphastar Pharmaceuticals, Inc | 09/29/2023 | 10/10/2023 | 8.40% | 31,194,960 | 2,619,270 | 338,723 | 7.73 | Get Alert |
| AMPH | Amphastar Pharmaceuticals, Inc | 09/15/2023 | 09/26/2023 | 8.63% | 31,194,960 | 2,692,654 | 944,564 | 2.85 | Get Alert |
| AMPH | Amphastar Pharmaceuticals, Inc | 08/31/2023 | 09/12/2023 | 4.17% | 31,194,960 | 1,300,986 | 282,777 | 4.6 | Get Alert |
| AMPH | Amphastar Pharmaceuticals, Inc | 08/15/2023 | 08/24/2023 | 4.78% | 31,194,960 | 1,490,264 | 453,100 | 3.29 | Get Alert |
| AMPH | Amphastar Pharmaceuticals, Inc | 07/31/2023 | 08/09/2023 | 4.59% | 31,158,164 | 1,430,156 | 392,144 | 3.65 | Get Alert |
| AMPH | Amphastar Pharmaceuticals, Inc | 07/14/2023 | 07/25/2023 | 6.76% | 30,613,400 | 2,068,587 | 364,455 | 5.68 | Get Alert |
| AMPH | Amphastar Pharmaceuticals, Inc | 06/30/2023 | 07/12/2023 | 6.57% | 30,613,400 | 2,012,424 | 587,536 | 3.43 | Get Alert |
| AMPH | Amphastar Pharmaceuticals, Inc | 06/15/2023 | 06/27/2023 | 6.80% | 30,613,400 | 2,080,966 | 493,047 | 4.22 | Get Alert |
| AMPH | Amphastar Pharmaceuticals, Inc | 05/31/2023 | 06/09/2023 | 6.14% | 30,613,400 | 1,878,289 | 376,148 | 4.99 | Get Alert |
| AMPH | Amphastar Pharmaceuticals, Inc | 05/15/2023 | 05/24/2023 | 6.20% | 30,613,400 | 1,896,592 | 410,375 | 4.62 | Get Alert |
| AMPH | Amphastar Pharmaceuticals, Inc | 04/28/2023 | 05/09/2023 | 6.09% | 30,613,400 | 1,864,098 | 430,259 | 4.33 | Get Alert |
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