ATRA
Atara Biotherapeutics, Inc.Company with tickers: ATRA
Market Cap
$92.08M
Shares Outstanding
9,010,172
CIK
1604464
CUSIP
046513206
13F Activity (30d)
2 filings
1 filers
Website
Visit website
Investor Relations
Investor relations
Weekly off-exchange (dark pool / OTC) trading volume reported to FINRA under its OTC/ATS Transparency data. ATS volume is executed on alternating trading systems (dark pools); non-ATS OTC is other over-the-counter dealer volume. The off-exchange share is total off-exchange volume as a percentage of consolidated weekly trading volume for the same Monday–Friday week.
Off-Exchange Volume History
| Week Start | ATS Volume | Non-ATS OTC Volume | Total Off-Exchange | % of FINRA Weekly Volume |
|---|---|---|---|---|
| 2026-05-04 | 3,208,461 | 40,929,262 | 44,137,723 | 55.2% |
| 2026-04-27 | 29,402 | 102,897 | 132,299 | 66.3% |
| 2026-04-20 | 31,585 | 106,446 | 138,031 | 58.8% |
| 2026-04-13 | 43,699 | 134,904 | 178,603 | 60.8% |
| 2026-04-06 | 48,232 | 177,990 | 226,222 | 53.2% |
| 2026-03-30 | 28,966 | 105,837 | 134,803 | 57.8% |
| 2026-03-23 | 49,598 | 110,580 | 160,178 | 45.6% |
| 2026-03-16 | 102,764 | 276,450 | 379,214 | 45.7% |
| 2026-03-09 | 1,098,935 | 1,503,645 | 2,602,580 | 52.8% |
| 2026-03-02 | 339,745 | 1,203,795 | 1,543,540 | 40.0% |
| 2026-02-23 | 353,765 | 337,010 | 690,775 | 49.4% |
| 2026-02-16 | 26,421 | 92,270 | 118,691 | 37.8% |
| 2026-02-09 | 39,598 | 112,209 | 151,807 | 42.2% |
| 2026-02-02 | 70,249 | 195,491 | 265,740 | 51.3% |
| 2026-01-26 | 124,160 | 374,703 | 498,863 | 46.1% |
| 2026-01-19 | 204,663 | 804,130 | 1,008,793 | 51.7% |
| 2026-01-12 | 717,787 | 4,910,636 | 5,628,423 | 58.6% |
| 2026-01-05 | 211,016 | 834,594 | 1,045,610 | 53.0% |
| 2025-12-29 | 35,884 | 105,093 | 140,977 | 47.2% |
| 2025-12-22 | 44,019 | 106,916 | 150,935 | 48.5% |
| 2025-12-15 | 64,527 | 75,093 | 139,620 | 45.5% |
| 2025-12-08 | 71,321 | 155,685 | 227,006 | 50.2% |
| 2025-12-01 | 49,257 | 170,252 | 219,509 | 54.9% |
| 2025-11-24 | 36,290 | 70,752 | 107,042 | 50.2% |
| 2025-11-17 | 39,932 | 133,970 | 173,902 | 53.9% |
| 2025-11-10 | 40,498 | 102,096 | 142,594 | 53.7% |
| 2025-11-03 | 68,833 | 172,633 | 241,466 | 49.3% |
| 2025-10-27 | 40,769 | 57,892 | 98,661 | 47.5% |
| 2025-10-20 | 33,808 | 80,188 | 113,996 | 43.7% |
| 2025-10-13 | 39,880 | 98,448 | 138,328 | 59.6% |
| 2025-10-06 | 66,967 | 180,629 | 247,596 | 61.8% |
| 2025-09-29 | 40,202 | 116,191 | 156,393 | 60.5% |
| 2025-09-22 | 45,856 | 180,383 | 226,239 | 59.2% |
| 2025-09-15 | 18,743 | 78,213 | 96,956 | 54.6% |
| 2025-09-08 | 26,849 | 68,794 | 95,643 | 42.9% |
| 2025-09-01 | 44,221 | 50,167 | 94,388 | 45.0% |
| 2025-08-25 | 47,009 | 84,015 | 131,024 | 50.6% |
| 2025-08-18 | 54,869 | 99,992 | 154,861 | 51.7% |
| 2025-08-11 | 103,682 | 96,476 | 200,158 | 57.5% |
| 2025-08-04 | 21,181 | 38,667 | 59,848 | 56.0% |
| 2025-07-28 | 52,627 | 92,020 | 144,647 | 55.4% |
| 2025-07-21 | 62,607 | 286,091 | 348,698 | 59.2% |
| 2025-07-14 | 48,546 | 141,900 | 190,446 | 55.2% |
| 2025-07-07 | 25,080 | 74,130 | 99,210 | 58.6% |
| 2025-06-30 | 13,451 | 28,073 | 41,524 | 46.7% |
Showing 1–45 of 45 weeks