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RGEN · Repligen Corp · Short Volume

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$192.23 -2.34 (-1.20%) At close · Sep 30
S&P 400 member Russell 1000 member Rebalance outlook locked
Market Cap
$10.70B
Shares
56.44M
Volume · Sep 30 730.44K Avg daily vol (3M) 1.09M

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.

Pull daily short volume through the short interest API or MCP →
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    • Short Volume

    Date Short Volume Short Exempt Total Volume Short %
    2026-09-30 237,284 15,500 296,218 80.1%
    2026-09-29 392,991 87 587,176 66.9%
    2026-09-28 420,415 0 611,242 68.8%
    2026-09-25 361,663 64 491,563 73.6%
    2026-09-24 552,002 2 822,093 67.1%
    2026-09-23 208,777 85 383,736 54.4%
    2026-09-22 471,767 274 565,168 83.5%
    2026-09-21 260,175 301 322,242 80.7%
    2026-09-18 284,690 24 321,660 88.5%
    2026-09-17 386,168 6 562,842 68.6%
    2026-09-16 237,959 0 372,616 63.9%
    2026-09-15 309,921 452 420,094 73.8%
    2026-09-14 147,714 4 255,836 57.7%
    2026-09-11 239,213 295 272,466 87.8%
    2026-09-10 306,531 633 480,520 63.8%
    2026-09-09 262,916 6,900 480,372 54.7%
    2026-09-08 206,804 271 335,562 61.6%
    2026-09-04 192,550 270 353,013 54.5%
    2026-09-03 251,421 82 550,766 45.6%
    2026-09-02 216,442 100 429,452 50.4%
    2026-09-01 284,937 165 634,950 44.9%
    2026-08-31 199,386 0 327,897 60.8%
    2026-08-28 237,716 0 348,539 68.2%
    2026-08-27 181,356 25 234,424 77.4%
    2026-08-26 154,991 63 240,833 64.4%
    2026-08-25 222,280 2,014 348,230 63.8%
    2026-08-24 364,075 259 480,687 75.7%
    2026-08-21 449,884 4,367 587,108 76.6%
    2026-08-20 480,201 15,851 766,365 62.7%
    2026-08-19 409,484 4,366 1,015,123 40.3%
    2026-08-18 138,876 0 195,655 71.0%
    2026-08-17 170,045 56 264,198 64.4%
    2026-08-14 184,403 3,023 240,549 76.7%
    2026-08-13 255,785 7 308,539 82.9%
    2026-08-12 279,115 0 372,606 74.9%
    2026-08-11 315,011 45 479,630 65.7%
    2026-08-10 200,137 0 283,927 70.5%
    2026-08-07 323,474 9 431,611 74.9%
    2026-08-06 403,116 0 573,869 70.2%
    2026-08-05 476,988 3 619,585 77.0%
    2026-08-04 339,257 6 491,808 69.0%
    2026-08-03 320,133 0 483,063 66.3%
    2026-07-31 244,174 0 327,699 74.5%
    2026-07-30 248,374 0 450,642 55.1%
    2026-07-29 553,117 53 693,520 79.8%
    2026-07-28 773,501 12,412 1,058,823 73.1%
    2026-07-27 437,588 36 621,798 70.4%
    2026-07-24 470,734 100 623,458 75.5%
    2026-07-23 659,782 1,800 1,021,705 64.6%
    2026-07-22 833,332 10,121 1,187,652 70.2%
    Showing 1–50 of 64 days
    Key facts CIK 730272 CUSIP 759916109 13F (30d) 12 filings 12 filers Visit website Investor relations