ATOS reverse split history: Atossa Therapeutics, Inc. Common Stock
Listed on Nasdaq. Split dates, ratios and the filings behind them.
On the reverse split lists now
- Stage lockedRatio not statedeffective date not stated
Source: 8-K, filed May 8, 2026
Stage, approval route, meeting and approval dates are part of SplitScanner.
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| Effective date | Direction | Ratio | Status |
|---|---|---|---|
| Feb 2, 2026 | Reverse | 1 to 15 | Took effect |
| Apr 20, 2018 | Reverse | 1 to 12 | Took effect |
| Aug 26, 2016 | Reverse | 1 to 15 | Took effect |
Exchange listing context
- bid price deficiencyNASDAQfiled Feb 17, 2026
Listing Rule 5550(a)(2). Estimated compliance period ends Aug 15, 2026. Marked resolved on Feb 17, 2026.
SEC filing 000119312526054797
Exchange deficiency notices Signal8 detected in 8-K Item 3.01 filings. No notice listed means none was found in that index, not that the company is in compliance.
Approval timeline
Locked3 tracked episodes on record. Every filing and step from proposal to effective date.
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Unlock with SplitScannerHow it traded after each split
Locked3 executed reverse splits on record. The move over the 30 days after each one, on one split basis.
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Locked102 float samples on record. Float around each split, from the daily float record.
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LockedPlain-English readings of each filing and press release about the split, from the Signal8 analysis. Nothing to show for this ticker yet.
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Unlock with SplitScannerSplit dates and ratios come from the market split calendar and are cross-checked against a second source; a row only one source evidences is marked unconfirmed. Funds, ETFs and other non-equity securities are excluded. The index is keyed by ticker symbol, so a company that changed symbol between splits appears under each symbol.