Skip to main content
Equibles
ATRA logo

ATRA · Atara Biotherapeutics, Inc. · Short Volume

Track ATRA — free

Use ATRA with AI

Add company filings, earnings and prices to ChatGPT or Claude, then ask questions in your own chat.

Choose your app for step-by-step connection instructions. Sign in with Equibles when asked; no code or API key is needed.

Claude ChatGPT

After connecting, ask your AI to use Equibles to research ATRA.

Other apps & server URL
https://mcp.equibles.com/mcp
Gemini CLI setup
or ask here

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

See what you can ask in ChatGPT or Claude

All connection guides →
$9.38 -0.51 (-5.16%) At close · Sep 11
Rebalance outlook locked
Going-concern doubt — flagged Aug 12, 2026

Substantial doubt about the company's ability to continue as a going concern.

“Our existing cash, cash equivalents and short-term investments as of June 30, 2026 will not be sufficient to fund our planned operations for at least the next twelve months from the date of issuance of these financial statements. These conditions raise substantial doubt about our ability to continue as a going concern for at least 12 months after the issuance of the accompanying condensed consolidated financial statements.”
View the 10-Q filed Aug 12, 2026
Market Cap
$94.15M
Shares
10.04M

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

    • Short Volume

    Date Short Volume Short Exempt Total Volume Short %
    2026-09-11 2,794 0 6,155 45.4%
    2026-09-10 2,233 1 7,906 28.2%
    2026-09-09 12,978 0 37,143 34.9%
    2026-09-08 15,086 42 29,270 51.5%
    2026-09-04 3,309 0 110,718 3.0%
    2026-09-03 8,482 0 10,249 82.8%
    2026-09-02 2,835 0 5,050 56.1%
    2026-09-01 11,228 0 20,624 54.4%
    2026-08-31 2,884 0 8,828 32.7%
    2026-08-28 2,524 0 3,747 67.4%
    2026-08-27 3,384 0 8,863 38.2%
    2026-08-26 12,121 0 25,233 48.0%
    2026-08-25 8,790 0 19,141 45.9%
    2026-08-24 5,174 0 7,531 68.7%
    2026-08-21 1,939 0 10,378 18.7%
    2026-08-20 2,854 0 9,748 29.3%
    2026-08-19 13,831 0 25,420 54.4%
    2026-08-18 5,195 0 8,122 64.0%
    2026-08-17 20,817 11,663 28,472 73.1%
    2026-08-14 4,196 361 12,785 32.8%
    2026-08-13 11,302 2,754 38,976 29.0%
    2026-08-12 20,539 0 35,812 57.4%
    2026-08-11 7,031 0 8,738 80.5%
    2026-08-10 8,525 0 21,347 39.9%
    2026-08-07 4,470 0 8,001 55.9%
    2026-08-06 3,532 0 6,610 53.4%
    2026-08-05 6,704 0 11,687 57.4%
    2026-08-04 7,631 0 17,650 43.2%
    2026-08-03 9,347 0 22,414 41.7%
    2026-07-31 8,932 0 12,845 69.5%
    2026-07-30 11,875 0 28,537 41.6%
    2026-07-29 2,599 0 6,353 40.9%
    2026-07-28 12,771 0 27,939 45.7%
    2026-07-27 11,856 0 27,088 43.8%
    2026-07-24 17,715 200 42,724 41.5%
    2026-07-23 11,637 7 18,778 62.0%
    2026-07-22 3,333 0 8,949 37.2%
    2026-07-21 11,108 0 20,789 53.4%
    2026-07-20 13,187 0 16,447 80.2%
    2026-07-17 11,262 0 31,039 36.3%
    2026-07-16 8,142 0 13,167 61.8%
    2026-07-15 14,668 0 35,177 41.7%
    2026-07-14 48,642 826 63,878 76.1%
    2026-07-13 23,852 1,186 43,513 54.8%
    2026-07-10 11,170 0 14,448 77.3%
    2026-07-09 8,080 0 20,325 39.8%
    2026-07-08 42,181 0 53,726 78.5%
    2026-07-07 4,629 0 13,045 35.5%
    2026-07-06 8,111 0 26,825 30.2%
    2026-07-02 11,121 0 14,487 76.8%
    Showing 1–50 of 62 days
    Key facts CIK 1604464 CUSIP 046513206 13F (30d) 14 filings 14 filers Visit website Investor relations