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% |
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