Atara Biotherapeutics Inc... (ATRA)
NASDAQ: ATRA
· Real-Time Price · USD
12.91
0.11 (0.86%)
At close: Sep 05, 2025, 3:59 PM
13.40
3.80%
After-hours: Sep 05, 2025, 06:43 PM EDT
Atara Biotherapeutics dark pool activity today shows an average trade size of 14,600 with $178.7K average premium per trade.
| Rank | Time | Price | Size | Volume | Size / Vol | Size / Avg Vol | Avg. Paid |
|---|---|---|---|---|---|---|---|
| 1 | 8/15/2025 11:37 AM | 12.24 | 14,600 | 37,749 | 38.68% | 25.95% | 178.7K |
Historical Table
| Date | Long Volume | Short Volume | Long / Short | % Short Change |
|---|---|---|---|---|
| Sep 05, 2025 | 20K | 6.08K | 3.29 | -37.82% |
| Aug 29, 2025 | 6.01K | 9.78K | 0.61 | -23.37% |
| Aug 22, 2025 | 31.95K | 12.76K | 2.50 | 47.67% |
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