GLSI · Greenwich LifeSciences, Inc. · Off Exchange
$18.99
+0.60 (+3.26%)
At close · Sep 18
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
$269.93M
Shares
14.68M
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 |
|---|---|---|---|---|
| 2026-08-10 | 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% |
| 2025-11-10 | 64,607 | 184,831 | 249,438 | 48.1% |
| 2025-11-03 | 97,654 | 217,283 | 314,937 | 50.6% |
| 2025-10-27 | 24,762 | 61,588 | 86,350 | 44.1% |
| 2025-10-20 | 81,626 | 112,467 | 194,093 | 49.0% |
| 2025-10-13 | 64,132 | 144,208 | 208,340 | 50.2% |
| 2025-10-06 | 46,573 | 114,280 | 160,853 | 48.4% |
| 2025-09-29 | 33,843 | 96,309 | 130,152 | 49.6% |
| 2025-09-22 | 84,466 | 170,273 | 254,739 | 50.1% |
Showing 1–47 of 47 weeks