AMPH
Amphastar Pharmaceuticals, Inc.
$18.72
-0.30 (-1.58%)
At close · Jul 10
Market Cap
$825.42M
Shares
44,092,919
Daily short-sale volume published by FINRA from its trade-reporting facilities. It measures how many shares were sold short each day as a share of total volume — a daily flow, not the total outstanding short position.
Short Volume
| Date | Short Volume | Short Exempt | Total Volume | Short % |
|---|---|---|---|---|
| 2026-07-10 | 38,958 | 0 | 135,546 | 28.7% |
| 2026-07-09 | 47,740 | 0 | 157,747 | 30.3% |
| 2026-07-08 | 55,833 | 0 | 108,691 | 51.4% |
| 2026-07-07 | 90,956 | 0 | 145,210 | 62.6% |
| 2026-07-06 | 35,886 | 0 | 125,432 | 28.6% |
| 2026-07-02 | 70,021 | 75 | 116,567 | 60.1% |
| 2026-07-01 | 61,292 | 115 | 143,338 | 42.8% |
| 2026-06-30 | 63,303 | 0 | 130,842 | 48.4% |
| 2026-06-29 | 105,609 | 1,760 | 217,607 | 48.5% |
| 2026-06-26 | 66,531 | 10 | 126,874 | 52.4% |
| 2026-06-25 | 79,469 | 0 | 146,632 | 54.2% |
| 2026-06-24 | 103,396 | 0 | 230,730 | 44.8% |
| 2026-06-23 | 58,844 | 0 | 182,624 | 32.2% |
| 2026-06-22 | 97,342 | 934 | 195,751 | 49.7% |
| 2026-06-18 | 109,522 | 148 | 211,141 | 51.9% |
| 2026-06-17 | 473,577 | 0 | 564,459 | 83.9% |
| 2026-06-16 | 206,955 | 0 | 386,876 | 53.5% |
| 2026-06-15 | 71,937 | 0 | 180,451 | 39.9% |
| 2026-06-12 | 34,314 | 11 | 113,276 | 30.3% |
| 2026-06-11 | 94,028 | 77 | 168,917 | 55.7% |
| 2026-06-10 | 74,599 | 101 | 132,256 | 56.4% |
| 2026-06-09 | 78,894 | 0 | 141,667 | 55.7% |
| 2026-06-08 | 74,413 | 0 | 167,653 | 44.4% |
| 2026-06-05 | 147,663 | 0 | 247,117 | 59.8% |
| 2026-06-04 | 72,796 | 0 | 145,854 | 49.9% |
| 2026-06-03 | 71,181 | 360 | 130,120 | 54.7% |
| 2026-06-02 | 78,126 | 0 | 148,975 | 52.4% |
| 2026-06-01 | 93,732 | 0 | 176,471 | 53.1% |
| 2026-05-29 | 173,417 | 0 | 263,285 | 65.9% |
| 2026-05-28 | 133,120 | 10 | 186,959 | 71.2% |
| 2026-05-27 | 138,263 | 0 | 205,892 | 67.2% |
| 2026-05-26 | 95,732 | 0 | 169,333 | 56.5% |
| 2026-05-22 | 70,012 | 261 | 128,434 | 54.5% |
| 2026-05-21 | 168,392 | 335 | 860,266 | 19.6% |
| 2026-05-20 | 120,829 | 336 | 342,705 | 35.3% |
| 2026-05-19 | 135,955 | 0 | 266,880 | 50.9% |
| 2026-05-18 | 248,970 | 31 | 325,776 | 76.4% |
| 2026-05-15 | 209,877 | 0 | 264,267 | 79.4% |
| 2026-05-14 | 141,809 | 0 | 290,815 | 48.8% |
| 2026-05-13 | 143,188 | 4 | 321,472 | 44.5% |
| 2026-05-12 | 229,401 | 0 | 556,836 | 41.2% |
| 2026-05-11 | 283,119 | 2,618 | 451,089 | 62.8% |
| 2026-05-08 | 476,889 | 4,923 | 933,282 | 51.1% |
| 2026-05-07 | 84,509 | 0 | 124,548 | 67.9% |
| 2026-05-06 | 96,430 | 0 | 124,110 | 77.7% |
| 2026-05-05 | 89,225 | 0 | 126,464 | 70.6% |
| 2026-05-04 | 144,870 | 0 | 183,353 | 79.0% |
| 2026-05-01 | 120,010 | 39,100 | 139,392 | 86.1% |
| 2026-04-30 | 105,105 | 0 | 142,848 | 73.6% |
| 2026-04-29 | 56,947 | 0 | 79,672 | 71.5% |
Showing 1–50 of 62 days
Key facts
CIK
1297184
CUSIP
03209R103
13F (30d)
13 filings
12 filers
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