OABI
OmniAb, Inc.Company with tickers: OABI, OABIW
CIK
1846253
CUSIP
68218J103
Shares Outstanding
144,972,579
Website
https://www.omniab.com
Investor Relations
https://investors.omniab.com/overview/default.aspx
13F Activity (30d)
13 filings
3 filers
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 | 480,205 | 4,778,971 | 5,259,176 | 73.7% |
| 2026-04-27 | 392,723 | 449,944 | 842,667 | 42.2% |
| 2026-04-20 | 754,126 | 678,927 | 1,433,053 | 41.7% |
| 2026-04-13 | 549,061 | 705,827 | 1,254,888 | 33.9% |
| 2026-04-06 | 200,988 | 335,536 | 536,524 | 39.7% |
| 2026-03-30 | 142,261 | 190,789 | 333,050 | 36.4% |
| 2026-03-23 | 163,956 | 273,864 | 437,820 | 39.4% |
| 2026-03-16 | 223,047 | 495,793 | 718,840 | 33.5% |
| 2026-03-09 | 173,744 | 379,685 | 553,429 | 43.2% |
| 2026-03-02 | 345,387 | 448,383 | 793,770 | 34.9% |
| 2026-02-23 | 172,153 | 216,459 | 388,612 | 37.6% |
| 2026-02-16 | 211,450 | 211,495 | 422,945 | 41.6% |
| 2026-02-09 | 384,014 | 269,822 | 653,836 | 43.4% |
| 2026-02-02 | 642,674 | 483,052 | 1,125,726 | 52.9% |
| 2026-01-26 | 741,232 | 975,782 | 1,717,014 | 54.2% |
| 2026-01-19 | 216,781 | 333,209 | 549,990 | 40.5% |
| 2026-01-12 | 252,105 | 478,705 | 730,810 | 47.8% |
| 2026-01-05 | 229,661 | 317,572 | 547,233 | 39.5% |
| 2025-12-29 | 252,744 | 325,026 | 577,770 | 38.0% |
| 2025-12-22 | 186,407 | 372,845 | 559,252 | 43.9% |
| 2025-12-15 | 656,936 | 976,740 | 1,633,676 | 29.7% |
| 2025-12-08 | 690,750 | 772,793 | 1,463,543 | 44.3% |
| 2025-12-01 | 459,689 | 385,848 | 845,537 | 41.5% |
| 2025-11-24 | 254,434 | 314,853 | 569,287 | 35.9% |
| 2025-11-17 | 520,541 | 1,299,867 | 1,820,408 | 43.8% |
| 2025-11-10 | 309,995 | 581,401 | 891,396 | 47.8% |
| 2025-11-03 | 499,467 | 1,239,063 | 1,738,530 | 58.1% |
| 2025-10-27 | 272,369 | 3,361,769 | 3,634,138 | 79.5% |
| 2025-10-20 | 220,601 | 387,698 | 608,299 | 42.6% |
| 2025-10-13 | 338,142 | 622,590 | 960,732 | 50.8% |
| 2025-10-06 | 535,684 | 900,259 | 1,435,943 | 49.2% |
| 2025-09-29 | 677,331 | 1,813,270 | 2,490,601 | 64.6% |
| 2025-09-22 | 450,721 | 772,939 | 1,223,660 | 50.3% |
| 2025-09-15 | 363,439 | 852,376 | 1,215,815 | 32.9% |
| 2025-09-08 | 320,374 | 524,100 | 844,474 | 41.0% |
| 2025-09-01 | 146,912 | 318,115 | 465,027 | 40.4% |
| 2025-08-25 | 418,240 | 647,635 | 1,065,875 | 44.5% |
| 2025-08-18 | 466,934 | 584,551 | 1,051,485 | 43.0% |
| 2025-08-11 | 206,836 | 244,484 | 451,320 | 33.0% |
| 2025-08-04 | 992,272 | 821,850 | 1,814,122 | 49.8% |
| 2025-07-28 | 772,826 | 491,087 | 1,263,913 | 46.2% |
| 2025-07-21 | 466,523 | 409,073 | 875,596 | 47.1% |
| 2025-07-14 | 854,642 | 464,692 | 1,319,334 | 45.5% |
| 2025-07-07 | 1,238,925 | 877,980 | 2,116,905 | 47.7% |
| 2025-06-30 | 278,697 | 335,923 | 614,620 | 40.5% |
| 2025-06-23 | 518,224 | 793,379 | 1,311,603 | 37.7% |
Showing 1–46 of 46 weeks