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GLSI · Greenwich LifeSciences, Inc. · Off Exchange

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$15.28 -0.81 (-5.03%) At close · Nov 12
Russell 2000 member Rebalance outlook locked
Going-concern doubt — flagged Aug 11, 2026

Substantial doubt about the company's ability to continue as a going concern.

“The Company has prepared its financial statements on a going concern basis, which assumes that the Company will realize its assets and satisfy its liabilities in the normal course of business. However, the Company has incurred net losses since its inception and has negative operating cash flows. These circumstances raise substantial doubt about the Company's ability to continue as a going concern within one year after the date these financial statements are issued.”
View the 10-Q filed Aug 11, 2026
Market Cap
$224.28M
Shares
14.68M
Volume · Nov 12 207.01K Avg daily vol (3M) 129.33K

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.

1M 3M 6M 1Y 5Y All

Off-Exchange Volume History

Week Start ATS Volume Non-ATS OTC Volume Total Off-Exchange % of FINRA Weekly Volume
2026-10-05 97,652 104,561 202,213 33.2%
2026-09-28 92,439 71,863 164,302 27.8%
2026-09-21 60,501 125,940 186,441 32.4%
2026-09-14 97,372 207,677 305,049 35.1%
2026-09-07 59,184 72,247 131,431 42.4%
2026-08-31 82,885 132,072 214,957 44.4%
2026-08-24 111,266 195,235 306,501 38.8%
2026-08-17 80,483 157,428 237,911 35.7%
2026-08-10 93,476 191,701 285,177 42.1%
2026-08-03 75,232 103,756 178,988 33.6%
2026-07-27 77,913 157,865 235,778 39.3%
2026-07-20 225,514 400,255 625,769 42.7%
2026-07-13 125,544 156,645 282,189 36.0%
2026-07-06 145,810 130,255 276,065 34.8%
2026-06-29 70,824 128,939 199,763 38.4%
2026-06-22 100,862 256,364 357,226 34.5%
2026-06-15 43,278 75,309 118,587 30.0%
2026-06-08 70,528 157,035 227,563 48.4%
2026-06-01 132,172 364,853 497,025 38.6%
2026-05-25 66,364 150,226 216,590 37.8%
2026-05-18 36,371 121,480 157,851 35.6%
2026-05-11 128,262 237,180 365,442 39.9%
2026-05-04 73,726 156,074 229,800 44.1%
2026-04-27 52,395 160,248 212,643 41.0%
2026-04-20 92,938 238,532 331,470 40.3%
2026-04-13 70,560 213,386 283,946 44.1%
2026-04-06 101,208 187,848 289,056 41.6%
2026-03-30 80,422 122,654 203,076 40.2%
2026-03-23 68,014 203,621 271,635 40.0%
2026-03-16 123,335 442,478 565,813 38.2%
2026-03-09 108,827 195,157 303,984 38.0%
2026-03-02 104,250 224,414 328,664 42.0%
2026-02-23 137,191 276,213 413,404 43.7%
2026-02-16 70,536 156,128 226,664 44.0%
2026-02-09 86,296 187,991 274,287 41.6%
2026-02-02 201,980 504,043 706,023 45.4%
2026-01-26 334,294 1,009,793 1,344,087 50.9%
2026-01-19 479,219 2,650,529 3,129,748 46.8%
2026-01-12 468,474 1,324,872 1,793,346 55.3%
2026-01-05 227,333 837,639 1,064,972 55.8%
2025-12-29 532,812 3,806,006 4,338,818 63.3%
2025-12-22 194,748 1,158,104 1,352,852 59.7%
2025-12-15 360,503 2,098,450 2,458,953 45.8%
2025-12-08 103,630 238,411 342,041 48.3%
2025-12-01 49,926 94,928 144,854 45.6%
2025-11-24 40,286 105,510 145,796 56.7%
2025-11-17 39,807 99,158 138,965 49.8%
Showing 1–47 of 47 weeks
Key facts CIK 1799788 CUSIP 396879108 13F (30d) 56 filings 30 filers Visit website Investor relations