PTIX · Protagenic Therapeutics, Inc.\new
$0.57
-0.17 (-22.97%)
At close · Jan 5
Going-concern doubt
— flagged Aug 19, 2026
Substantial doubt about the company's ability to continue as a going concern.
“The Company does not have sufficient resources to fund its operations past twelve months from the date these consolidated financial statements are available to be issued. The Company expects that additional capital may be required during the next 12 months to continue executing its business plan and to meet its obligations as they become due. Accordingly, these conditions 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 19, 2026
Market Cap
$1.45M
Shares
1.81M
Shares sold short and not yet covered, reported twice monthly. Days to cover is the reported short position divided by average daily volume.
PTIX Latest Reported Short Interest
FINRA reported 13,165 PTIX shares sold short as of the July 31, 2026 settlement date, an increase of 9 shares. Days to cover was 1.00 based on FINRA's reported average daily volume.
Official FINRA short-interest data · share counts are restated for subsequent stock splits
Short Interest History
| Settlement Date | Current Position | Previous Position | Change | Days to Cover |
|---|---|---|---|---|
|
2026-09-15
Scheduled
FINRA publishes Sep 24
|
— | — | — | — |
|
2026-08-31
Scheduled
FINRA publishes Sep 10
|
— | — | — | — |
| 2026-07-31 | 13,165 | 13,156 | +9 | 1.00 |
| 2026-07-15 | 13,156 | 13,021 | +135 | 1.00 |
| 2026-06-30 | 13,021 | 12,996 | +25 | 1.65 |
| 2026-06-15 | 12,996 | 12,996 | 0 | 1.00 |
| 2026-05-29 | 12,996 | 12,996 | 0 | 3.52 |
| 2026-05-15 | 12,996 | 18,163 | -5,167 | 1.07 |
| 2026-04-30 | 18,163 | 14,150 | +4,013 | 1.00 |
| 2026-04-15 | 14,150 | 19,507 | -5,357 | 2.15 |
| 2026-03-31 | 19,507 | 22,064 | -2,557 | 1.92 |
| 2026-03-13 | 22,064 | 24,374 | -2,310 | 2.49 |
| 2026-02-27 | 24,374 | 19,470 | +4,904 | 1.30 |
| 2026-02-13 | 19,470 | 29,753 | -10,283 | 1.00 |
| 2026-01-30 | 29,753 | 35,563 | -5,810 | 1.83 |
| 2026-01-15 | 35,563 | 50,768 | -15,205 | 1.00 |
| 2025-12-31 | 50,768 | 61,712 | -10,944 | 1.00 |
| 2025-12-15 | 61,712 | 53,426 | +8,286 | 1.00 |
| 2025-11-28 | 53,426 | 56,970 | -3,544 | 1.00 |
| 2025-11-14 | 56,970 | 28,771 | +28,199 | 1.00 |
| 2025-10-31 | 28,771 | 1,482 | +27,289 | 1.00 |
| 2025-10-15 | 1,482 | 51,478 | -49,996 | 1.00 |
| 2025-09-30 | 51,478 | 46,166 | +5,312 | 1.00 |
| 2025-09-15 | 46,166 | 89,908 | -43,742 | 1.00 |
Full FINRA short interest reporting calendar
Showing 1–22 of 22 settlements