SION · Sionna Therapeutics, Inc. · Off Exchange
$7.85
+0.23 (+3.02%)
At close · Sep 11
Going-concern doubt
— cleared Aug 6, 2026
The latest filing states the doubt was alleviated.
“The Company has evaluated whether there are conditions and events, considered in the aggregate, that raise substantial doubt about the Company’s ability to continue as a going concern within one year after the date that these condensed consolidated financial statements are issued. The Company believes that its existing cash, cash equivalents and marketable securities of $268.3 million as of June 30, 2026, will be sufficient to allow the Company to fund operations beyond twelve months from the date that the financial statements are issued.”View the 10-Q filed Aug 6, 2026
Market Cap
$354.92M
Shares
45.21M
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 |
|---|---|---|---|---|
| 2026-08-03 | 1,352,101 | 431,594 | 1,783,695 | 48.1% |
| 2026-07-27 | 617,677 | 133,963 | 751,640 | 40.9% |
| 2026-07-20 | 1,478,031 | 318,843 | 1,796,874 | 52.2% |
| 2026-07-13 | 1,241,883 | 428,927 | 1,670,810 | 48.4% |
| 2026-07-06 | 777,317 | 459,416 | 1,236,733 | 47.2% |
| 2026-06-29 | 481,340 | 298,959 | 780,299 | 44.1% |
| 2026-06-22 | 690,282 | 600,382 | 1,290,664 | 43.0% |
| 2026-06-15 | 432,487 | 262,496 | 694,983 | 38.7% |
| 2026-06-08 | 641,704 | 109,467 | 751,171 | 45.5% |
| 2026-06-01 | 785,636 | 131,383 | 917,019 | 44.1% |
| 2026-05-25 | 356,133 | 226,598 | 582,731 | 40.6% |
| 2026-05-18 | 446,244 | 178,720 | 624,964 | 42.6% |
| 2026-05-11 | 750,357 | 238,603 | 988,960 | 42.2% |
| 2026-05-04 | 707,829 | 260,443 | 968,272 | 44.9% |
| 2026-04-27 | 421,689 | 336,393 | 758,082 | 42.1% |
| 2026-04-20 | 615,597 | 274,765 | 890,362 | 41.5% |
| 2026-04-13 | 1,543,142 | 363,671 | 1,906,813 | 56.5% |
| 2026-04-06 | 362,138 | 128,357 | 490,495 | 34.7% |
| 2026-03-30 | 557,646 | 243,375 | 801,021 | 40.9% |
| 2026-03-23 | 442,046 | 360,551 | 802,597 | 48.2% |
| 2026-03-16 | 405,682 | 175,146 | 580,828 | 39.8% |
| 2026-03-09 | 493,815 | 87,000 | 580,815 | 45.3% |
| 2026-03-02 | 598,427 | 69,573 | 668,000 | 41.1% |
| 2026-02-23 | 304,114 | 61,956 | 366,070 | 40.1% |
| 2026-02-16 | 185,661 | 55,987 | 241,648 | 44.0% |
| 2026-02-09 | 402,267 | 198,494 | 600,761 | 38.6% |
| 2026-02-02 | 744,481 | 313,001 | 1,057,482 | 41.3% |
| 2026-01-26 | 331,050 | 75,504 | 406,554 | 46.3% |
| 2026-01-19 | 332,414 | 405,398 | 737,812 | 60.9% |
| 2026-01-12 | 411,104 | 99,270 | 510,374 | 41.1% |
| 2026-01-05 | 611,715 | 187,625 | 799,340 | 42.9% |
| 2025-12-29 | 294,822 | 121,085 | 415,907 | 40.1% |
| 2025-12-22 | 297,035 | 51,288 | 348,323 | 46.2% |
| 2025-12-15 | 677,161 | 313,082 | 990,243 | 31.6% |
| 2025-12-08 | 362,691 | 103,387 | 466,078 | 43.8% |
| 2025-12-01 | 696,965 | 167,147 | 864,112 | 47.3% |
| 2025-11-24 | 442,488 | 178,091 | 620,579 | 58.9% |
| 2025-11-17 | 411,395 | 254,846 | 666,241 | 48.3% |
| 2025-11-10 | 245,417 | 179,381 | 424,798 | 48.7% |
| 2025-11-03 | 246,259 | 292,752 | 539,011 | 49.1% |
| 2025-10-27 | 271,685 | 76,252 | 347,937 | 41.3% |
| 2025-10-20 | 948,140 | 506,590 | 1,454,730 | 51.9% |
| 2025-10-13 | 706,348 | 148,298 | 854,646 | 51.5% |
| 2025-10-06 | 705,326 | 221,538 | 926,864 | 49.3% |
| 2025-09-29 | 417,637 | 105,133 | 522,770 | 39.0% |
| 2025-09-22 | 433,220 | 289,635 | 722,855 | 44.5% |
| 2025-09-15 | 309,869 | 109,963 | 419,832 | 30.2% |
Showing 1–47 of 47 weeks
Key facts
CIK
2036042
CUSIP
829401108
13F (30d)
94 filings
94 filers
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