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As of May 13th, 2025, there has been substantial selling of Atara Biotherapeutics, Inc. in recent trading


Published on 2025-05-13 04:10:48 - WOPRAI
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The chart below shows ALL of the short selling each day in ATARA BIOTHERAPEUTICS, INC. (ATRA). We have consolidated the tape of ALL US stock exchanges and dark pools (this means we get the TRADE IDENTIFIER showing whether the trade was a buy, sell or sell short). The data below shows just the short sales each day in your stock. It includes both EXEMPT (market makers) and NON-EXEMPT (everyone else) short sales in ATARA BIOTHERAPEUTICS, INC.. An average of 39.3% of the daily trading in ATRA is short selling. This is abnormally high and implies there is illicit trading taking place in your stock. We run automated surveillance and reporting algorithms that report manipulative market making and short selling (to FINRA, SEC, Whistleblower's Office and Dept of Treasury FINCEN). We then issue FINRA COMPLIANT research to our large user base to counteract this activity that is driving ATRA lower unfairly.


You can find the full report at [ https://www.woprai.com/ ]

Please find the applicable data below, drawn from all major market providers.
DateShort VolumeTotal VolumePercentageSqueeze Trigger$ Value
2025-05-1223,092102,45322.546.89159,104
2025-05-0912,84826,41648.647.5396,745
2025-05-0823,19455,24441.987.26168,388
2025-05-0717,44338,06645.827.45129,950
2025-05-0659,080138,01442.818.07476,776
2025-05-0515,52330,17851.447.44115,491
2025-05-0223,35160,72838.457.88184,006
2025-05-014,57416,30228.067.7935,631
2025-04-3014,86239,71537.427.82116,221
2025-04-2911,66320,72656.277.4486,773
2025-04-2814,56830,53947.77.35107,075
2025-04-2532,80568,93147.597.4242,757
2025-04-2429,85656,65952.697.44222,129
2025-04-2315,32545,39633.766.92106,049
2025-04-2223,24449,55946.96.64154,340
2025-04-2112,91533,24738.856.280,073
2025-04-1711,23623,95946.95.9366,629
2025-04-169,36625,80936.295.8254,510
2025-04-1516,07540,72739.475.9595,646
2025-04-1417,91740,43444.315.64101,052
2025-04-1129,76657,86651.445.31158,057
2025-04-1051,31392,18755.665.57285,813
2025-04-0923,11936,64063.15.69131,547
2025-04-0815,13024,54361.655.6885,938
2025-04-0729,05959,71248.675.46158,662
2025-04-0452,49697,56153.815.7299,227
2025-04-0320,70943,33747.796.04125,082
2025-04-0214,90133,80944.076.1591,641
2025-04-0137,99775,86650.085.89223,802
2025-03-3140,02183,99647.656.07242,927
2025-03-2828,43050,70856.076.54185,932
2025-03-278,03321,59437.26.7854,464
2025-03-2620,03437,92252.836.68133,827
2025-03-2513,42926,57650.536.7390,377
2025-03-2411,91930,05139.666.8281,288
2025-03-2118,79537,51350.16.62124,423
2025-03-2033,89467,64050.116.76229,123
 
Total619,690,6801,576,790,16839.35.363,320,896,064
 
* Totals include all data records back to 2020-05-14 00:00:00, data set is truncated for viewing.