Atara Biotherapeutics Inc. (ATRA)
Showing Closing Date Range from Oct 20, 2025 to Oct 20, 2026 compared to Oct 19, 2024 to Oct 19, 2025.
Compare Last 12 Months with Previous Period
Investor Relations:investors.atarabio.com
Current Period Close
$9.16
Oct 20, 2025 - Oct 20, 2026
Previous Period Close
$14.81
Oct 19, 2024 - Oct 19, 2025
Net Comparison Delta
$-5.65 (-38.15%)
Relative performance vs prior benchmark
Historical Quotes & Breakdown(249 dates)
| Current Date | Current Close | Previous Date | Previous Close | Delta (%) |
|---|---|---|---|---|
| Oct 20, 2026 | $9.16 | Oct 17, 2025 | $14.81 | -38.15% |
| Oct 19, 2026 | $8.96 | Oct 16, 2025 | $15.25 | -41.23% |
| Oct 16, 2026 | $9.18 | Oct 15, 2025 | $15.28 | -39.92% |
| Oct 15, 2026 | $9.65 | Oct 14, 2025 | $14.61 | -33.95% |
| Oct 14, 2026 | $9.56 | Oct 13, 2025 | $15.04 | -36.44% |
| Oct 13, 2026 | $9.31 | Oct 10, 2025 | $14.33 | -35.04% |
| Oct 12, 2026 | $9.38 | Oct 09, 2025 | $16.08 | -41.67% |
| Oct 09, 2026 | $9.48 | Oct 08, 2025 | $15.85 | -40.19% |
| Oct 08, 2026 | $9.23 | Oct 07, 2025 | $15.63 | -40.95% |
| Oct 07, 2026 | $9.37 | Oct 06, 2025 | $13.98 | -32.98% |
| Oct 06, 2026 | $9.75 | Oct 03, 2025 | $14.41 | -32.34% |
| Oct 05, 2026 | $9.40 | Oct 02, 2025 | $14.48 | -35.08% |
| Oct 02, 2026 | $9.48 | Oct 01, 2025 | $14.45 | -34.39% |
| Sep 30, 2026 | $8.50 | Sep 30, 2025 | $14.33 | -40.68% |
| Sep 25, 2026 | $8.81 | Sep 29, 2025 | $13.81 | -36.21% |
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