Skip to main content
Equibles
PRTA logo

PRTA · Prothena Corp Public Ltd Co

Track PRTA — free

Use PRTA with AI

Ask our own analyst here, or connect this data to the AI you already use.

Ask ALVIS about PRTA

Free, nothing to set up — ALVIS runs on the same tools and cites every figure.

or use your own AI

The free Equibles MCP server lets any client query SEC filings, earnings calls, KPIs, holdings and prices directly — read-only, OAuth-secured, cited to the filing.

ChatGPT Claude Gemini
Server URL
https://mcp.equibles.com/mcp
All connection guides →
$8.86 -0.22 (-2.42%) At close · Aug 14
Market Cap
$454.85M
Shares
51.34M

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.

1M 3M 6M 1Y 5Y All
Dimensions
  • Add to chart

    • Short Volume

    Date Short Volume Short Exempt Total Volume Short %
    2026-08-14 78,456 0 103,332 75.9%
    2026-08-13 68,418 0 101,894 67.1%
    2026-08-12 48,135 0 77,688 62.0%
    2026-08-11 96,371 500 162,627 59.3%
    2026-08-10 179,242 0 261,898 68.4%
    2026-08-07 84,540 0 118,095 71.6%
    2026-08-06 94,265 700 134,995 69.8%
    2026-08-05 74,431 28 122,111 61.0%
    2026-08-04 65,017 0 90,587 71.8%
    2026-08-03 112,361 0 155,916 72.1%
    2026-07-31 140,967 0 180,066 78.3%
    2026-07-30 96,250 0 143,591 67.0%
    2026-07-29 83,779 0 159,944 52.4%
    2026-07-28 135,134 100 269,662 50.1%
    2026-07-27 130,898 0 191,995 68.2%
    2026-07-24 101,166 0 149,813 67.5%
    2026-07-23 84,883 0 151,392 56.1%
    2026-07-22 98,939 709 157,098 63.0%
    2026-07-21 121,099 0 165,850 73.0%
    2026-07-20 116,377 0 151,702 76.7%
    2026-07-17 113,103 2 146,767 77.1%
    2026-07-16 227,592 0 293,728 77.5%
    2026-07-15 209,693 0 236,670 88.6%
    2026-07-14 98,930 0 132,291 74.8%
    2026-07-13 230,762 800 283,399 81.4%
    2026-07-10 141,381 0 167,142 84.6%
    2026-07-09 130,352 0 172,063 75.8%
    2026-07-08 53,477 0 96,945 55.2%
    2026-07-07 69,714 0 134,274 51.9%
    2026-07-06 72,398 0 113,534 63.8%
    2026-07-02 58,703 110 120,850 48.6%
    2026-07-01 68,838 91 88,741 77.6%
    2026-06-30 50,428 0 70,970 71.1%
    2026-06-29 61,877 1,412 95,375 64.9%
    2026-06-26 163,778 0 223,701 73.2%
    2026-06-25 241,010 0 356,219 67.7%
    2026-06-24 59,989 0 122,705 48.9%
    2026-06-23 65,825 0 131,279 50.1%
    2026-06-22 59,050 0 131,560 44.9%
    2026-06-18 92,090 4 150,546 61.2%
    2026-06-17 65,182 0 154,448 42.2%
    2026-06-16 90,413 0 235,308 38.4%
    2026-06-15 96,701 0 201,254 48.0%
    2026-06-12 60,385 0 106,068 56.9%
    2026-06-11 166,995 0 207,426 80.5%
    2026-06-10 104,497 0 151,109 69.2%
    2026-06-09 74,679 100 97,210 76.8%
    2026-06-08 71,913 2 97,799 73.5%
    2026-06-05 129,963 10 201,546 64.5%
    2026-06-04 113,541 0 161,896 70.1%
    Showing 1–50 of 62 days
    Key facts CIK 1559053 CUSIP G72800108 13F (30d) 181 filings 177 filers Visit website Investor relations

    Report a Problem

    Category
    Description
    Email (optional, for follow-up)