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CERS · Cerus Corp

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$2.59 +0.02 (+0.78%) At close · Sep 4
Russell 2000 member Rebalance outlook locked
Market Cap
$521.95M
Shares
201.52M

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 %
    2026-09-04 343,464 124 455,254 75.4%
    2026-09-03 156,019 1,126 328,297 47.5%
    2026-09-02 324,513 48 704,625 46.1%
    2026-09-01 211,537 11 388,014 54.5%
    2026-08-31 229,391 0 387,291 59.2%
    2026-08-28 353,283 136 685,899 51.5%
    2026-08-27 164,233 467 331,556 49.5%
    2026-08-26 237,768 132 404,037 58.8%
    2026-08-25 180,577 58 263,296 68.6%
    2026-08-24 474,833 621 700,448 67.8%
    2026-08-21 404,851 228 847,710 47.8%
    2026-08-20 617,951 452 1,239,826 49.8%
    2026-08-19 354,741 516 668,363 53.1%
    2026-08-18 531,902 330 950,103 56.0%
    2026-08-17 726,564 4,561 1,168,751 62.2%
    2026-08-14 511,879 0 827,516 61.9%
    2026-08-13 765,097 2,700 1,343,869 56.9%
    2026-08-12 567,220 0 799,824 70.9%
    2026-08-11 884,180 9 1,117,922 79.1%
    2026-08-10 758,999 113 1,033,451 73.4%
    2026-08-07 773,958 12,231 1,363,428 56.8%
    2026-08-06 735,088 76 1,067,379 68.9%
    2026-08-05 944,352 231 1,457,747 64.8%
    2026-08-04 1,106,515 253 2,413,912 45.8%
    2026-08-03 1,478,132 124,566 2,377,348 62.2%
    2026-07-31 3,999,217 286,681 4,931,428 81.1%
    2026-07-30 298,823 0 669,336 44.6%
    2026-07-29 507,824 0 854,374 59.4%
    2026-07-28 351,637 120 546,823 64.3%
    2026-07-27 159,766 0 479,969 33.3%
    2026-07-24 331,081 0 1,061,570 31.2%
    2026-07-23 324,846 2 742,138 43.8%
    2026-07-22 438,876 112 905,304 48.5%
    2026-07-21 571,942 2 1,041,212 54.9%
    2026-07-20 289,865 0 610,478 47.5%
    2026-07-17 204,841 0 815,096 25.1%
    2026-07-16 363,082 901 761,235 47.7%
    2026-07-15 134,785 0 262,513 51.3%
    2026-07-14 433,413 77 673,255 64.4%
    2026-07-13 223,018 0 373,896 59.6%
    2026-07-10 294,034 0 665,602 44.2%
    2026-07-09 151,210 0 324,917 46.5%
    2026-07-08 300,090 156 604,585 49.6%
    2026-07-07 496,455 7,211 1,181,483 42.0%
    2026-07-06 712,669 4,940 1,697,789 42.0%
    2026-07-02 401,529 0 1,011,748 39.7%
    2026-07-01 734,735 96,492 2,242,914 32.8%
    2026-06-30 446,436 5 767,466 58.2%
    2026-06-29 331,026 7,637 757,227 43.7%
    2026-06-26 349,978 0 1,172,436 29.9%
    Showing 1–50 of 64 days
    Key facts CIK 1020214 CUSIP 157085101 13F (30d) 149 filings 147 filers Visit website Investor relations