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AMLX · Amylyx Pharmaceuticals, Inc.

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$34.10 +0.14 (+0.41%) At close · Sep 4
Market Cap
$3.80B
Shares
111.42M

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 %
2026-09-04 202,819 0 299,177 67.8%
2026-09-03 309,665 0 518,768 59.7%
2026-09-02 445,251 0 720,569 61.8%
2026-09-01 593,110 1,061 935,518 63.4%
2026-08-31 407,219 217 1,045,078 39.0%
2026-08-28 288,505 1,732 562,852 51.3%
2026-08-27 330,680 2,404 699,340 47.3%
2026-08-26 392,720 3,150 789,785 49.7%
2026-08-25 481,888 0 901,543 53.5%
2026-08-24 583,101 0 1,212,018 48.1%
2026-08-21 850,834 4,474 1,582,868 53.8%
2026-08-20 2,234,861 57,435 4,067,377 54.9%
2026-08-19 2,110,970 42,404 3,996,061 52.8%
2026-08-18 5,081,878 37,019 10,212,316 49.8%
2026-08-17 180,154 0 305,469 59.0%
2026-08-14 199,495 0 610,635 32.7%
2026-08-13 168,577 0 367,689 45.8%
2026-08-12 359,321 0 708,657 50.7%
2026-08-11 218,602 0 302,150 72.3%
2026-08-10 316,572 570 504,021 62.8%
2026-08-07 577,102 6,574 1,057,050 54.6%
2026-08-06 503,859 283 1,312,035 38.4%
2026-08-05 196,948 0 605,195 32.5%
2026-08-04 403,300 2,626 1,721,830 23.4%
2026-08-03 311,927 34,478 666,018 46.8%
2026-07-31 415,282 8,400 707,928 58.7%
2026-07-30 383,114 0 1,770,945 21.6%
2026-07-29 272,340 0 925,028 29.4%
2026-07-28 752,145 44 1,400,216 53.7%
2026-07-27 638,037 0 1,448,937 44.0%
2026-07-24 233,835 0 591,494 39.5%
2026-07-23 134,176 501 225,634 59.5%
2026-07-22 328,363 0 673,832 48.7%
2026-07-21 300,045 0 1,383,636 21.7%
2026-07-20 163,528 0 361,277 45.3%
2026-07-17 187,037 0 557,701 33.5%
2026-07-16 207,740 0 389,521 53.3%
2026-07-15 186,062 0 401,309 46.4%
2026-07-14 466,391 4,092 705,422 66.1%
2026-07-13 229,229 0 566,701 40.4%
2026-07-10 294,872 10,824 428,542 68.8%
2026-07-09 171,339 7,990 327,932 52.2%
2026-07-08 164,695 3,400 249,022 66.1%
2026-07-07 318,338 0 536,186 59.4%
2026-07-06 227,328 0 593,036 38.3%
2026-07-02 242,554 0 638,969 38.0%
2026-07-01 198,635 7,528 912,261 21.8%
2026-06-30 445,078 10 776,963 57.3%
2026-06-29 655,954 7,572 1,067,660 61.4%
2026-06-26 228,989 7,810 582,658 39.3%
Showing 1–50 of 63 days
Key facts CIK 1658551 CUSIP 03237H101 13F (30d) 165 filings 165 filers Visit website Investor relations