GOSS
Gossamer Bio, Inc.Company with tickers: GOSS
CIK
1728117
CUSIP
38341P102
Shares Outstanding
488,846,722
13F Activity (30d)
95 filings
91 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 | 2,314,318 | 10,159,449 | 12,473,767 | 74.1% |
| 2026-04-27 | 4,042,694 | 11,224,837 | 15,267,531 | 62.8% |
| 2026-04-20 | 4,641,363 | 11,889,931 | 16,531,294 | 70.3% |
| 2026-04-13 | 5,946,517 | 13,959,410 | 19,905,927 | 78.7% |
| 2026-04-06 | 6,110,301 | 21,695,510 | 27,805,811 | 62.3% |
| 2026-03-30 | 4,901,550 | 15,508,637 | 20,410,187 | 74.9% |
| 2026-03-23 | 9,594,737 | 54,578,720 | 64,173,457 | 74.5% |
| 2026-03-16 | 9,750,219 | 28,519,677 | 38,269,896 | 60.0% |
| 2026-03-09 | 6,541,892 | 21,344,342 | 27,886,234 | 64.3% |
| 2026-03-02 | 9,607,807 | 54,864,666 | 64,472,473 | 69.0% |
| 2026-02-23 | 42,100,189 | 297,758,071 | 339,858,260 | 70.7% |
| 2026-02-16 | 4,695,238 | 7,720,067 | 12,415,305 | 48.4% |
| 2026-02-09 | 6,200,210 | 6,471,882 | 12,672,092 | 48.4% |
| 2026-02-02 | 9,257,431 | 8,301,327 | 17,558,758 | 49.1% |
| 2026-01-26 | 3,904,655 | 6,150,011 | 10,054,666 | 46.3% |
| 2026-01-19 | 4,155,069 | 6,621,708 | 10,776,777 | 48.9% |
| 2026-01-12 | 4,494,725 | 4,708,482 | 9,203,207 | 47.5% |
| 2026-01-05 | 5,654,655 | 8,523,627 | 14,178,282 | 51.6% |
| 2025-12-29 | 3,006,694 | 3,594,826 | 6,601,520 | 42.5% |
| 2025-12-22 | 3,448,114 | 5,307,434 | 8,755,548 | 49.9% |
| 2025-12-15 | 6,113,026 | 6,700,227 | 12,813,253 | 34.9% |
| 2025-12-08 | 2,944,769 | 3,745,761 | 6,690,530 | 46.8% |
| 2025-12-01 | 3,117,973 | 4,428,293 | 7,546,266 | 46.0% |
| 2025-11-24 | 1,052,836 | 2,095,898 | 3,148,734 | 39.5% |
| 2025-11-17 | 2,887,990 | 5,020,992 | 7,908,982 | 44.1% |
| 2025-11-10 | 2,909,769 | 3,614,113 | 6,523,882 | 43.8% |
| 2025-11-03 | 1,797,410 | 2,804,459 | 4,601,869 | 41.2% |
| 2025-10-27 | 2,145,136 | 2,691,216 | 4,836,352 | 40.1% |
| 2025-10-20 | 3,556,529 | 6,010,741 | 9,567,270 | 48.6% |
| 2025-10-13 | 2,732,744 | 3,287,466 | 6,020,210 | 44.6% |
| 2025-10-06 | 2,844,082 | 4,870,028 | 7,714,110 | 45.7% |
| 2025-09-29 | 4,126,754 | 4,826,837 | 8,953,591 | 47.5% |
| 2025-09-22 | 3,104,091 | 9,893,328 | 12,997,419 | 57.3% |
| 2025-09-15 | 3,060,496 | 6,616,145 | 9,676,641 | 45.7% |
| 2025-09-08 | 6,008,067 | 10,852,864 | 16,860,931 | 54.3% |
| 2025-09-01 | 3,476,638 | 10,166,262 | 13,642,900 | 62.1% |
| 2025-08-25 | 3,564,401 | 5,790,825 | 9,355,226 | 52.6% |
| 2025-08-18 | 2,322,315 | 4,645,309 | 6,967,624 | 52.6% |
| 2025-08-11 | 2,318,784 | 2,691,229 | 5,010,013 | 46.5% |
| 2025-08-04 | 3,267,290 | 7,443,253 | 10,710,543 | 54.1% |
| 2025-07-28 | 2,391,581 | 6,638,953 | 9,030,534 | 52.2% |
| 2025-07-21 | 4,323,930 | 4,118,416 | 8,442,346 | 54.0% |
| 2025-07-14 | 3,304,864 | 6,438,003 | 9,742,867 | 49.7% |
| 2025-07-07 | 881,721 | 1,760,259 | 2,641,980 | 47.1% |
| 2025-06-30 | 1,642,139 | 1,698,721 | 3,340,860 | 55.5% |
| 2025-06-23 | 1,851,970 | 9,967,675 | 11,819,645 | 37.0% |
| 2025-06-16 | 1,202,350 | 1,690,256 | 2,892,606 | 52.8% |
Showing 1–47 of 47 weeks