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ALNY · Alnylam Pharmaceuticals, Inc.

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$228.65 +1.53 (+0.67%) At close · Aug 14
Market Cap
$30.60B
Shares
133.81M

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.

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    • Short Volume

    Date Short Volume Short Exempt Total Volume Short %
    2026-08-14 363,732 6,384 708,487 51.3%
    2026-08-13 289,238 20 705,184 41.0%
    2026-08-12 242,586 250 538,417 45.1%
    2026-08-11 124,647 109 609,609 20.4%
    2026-08-10 203,854 17,026 563,347 36.2%
    2026-08-07 281,390 18 769,167 36.6%
    2026-08-06 484,519 352 926,739 52.3%
    2026-08-05 495,493 156 1,372,741 36.1%
    2026-08-04 552,751 825 1,488,451 37.1%
    2026-08-03 325,754 0 1,581,146 20.6%
    2026-07-31 432,556 30,447 2,320,421 18.6%
    2026-07-30 1,624,049 99,377 4,725,586 34.4%
    2026-07-29 344,543 81 584,634 58.9%
    2026-07-28 291,907 53 702,066 41.6%
    2026-07-27 286,475 0 731,772 39.1%
    2026-07-24 317,306 9 507,442 62.5%
    2026-07-23 262,443 5,121 494,354 53.1%
    2026-07-22 272,369 7,272 423,948 64.2%
    2026-07-21 244,789 130 386,498 63.3%
    2026-07-20 331,030 744 619,766 53.4%
    2026-07-17 294,808 227 489,482 60.2%
    2026-07-16 401,146 1,292 659,187 60.9%
    2026-07-15 289,380 487 462,917 62.5%
    2026-07-14 269,439 231 413,798 65.1%
    2026-07-13 823,096 16 1,215,483 67.7%
    2026-07-10 874,333 0 1,261,934 69.3%
    2026-07-09 1,623,611 19,504 2,724,755 59.6%
    2026-07-08 181,349 0 313,229 57.9%
    2026-07-07 198,127 280 407,141 48.7%
    2026-07-06 150,230 0 283,919 52.9%
    2026-07-02 174,323 1,310 378,820 46.0%
    2026-07-01 213,856 745 444,232 48.1%
    2026-06-30 340,896 5 567,845 60.0%
    2026-06-29 207,515 12 534,974 38.8%
    2026-06-26 153,796 7 321,512 47.8%
    2026-06-25 195,879 78 421,539 46.5%
    2026-06-24 318,631 4 629,458 50.6%
    2026-06-23 153,346 44 499,969 30.7%
    2026-06-22 222,482 0 573,230 38.8%
    2026-06-18 187,152 88 554,596 33.7%
    2026-06-17 244,889 217 514,550 47.6%
    2026-06-16 230,709 735 510,773 45.2%
    2026-06-15 236,526 145 379,472 62.3%
    2026-06-12 390,445 938 701,646 55.6%
    2026-06-11 304,123 1,120 444,531 68.4%
    2026-06-10 184,628 59 368,017 50.2%
    2026-06-09 241,685 0 467,107 51.7%
    2026-06-08 354,080 0 710,401 49.8%
    2026-06-05 178,450 639 361,694 49.3%
    2026-06-04 240,239 670 456,545 52.6%
    Showing 1–50 of 62 days
    Key facts CIK 1178670 CUSIP 02043Q107 13F (30d) 739 filings 705 filers Visit website Investor relations

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