Aptose is going dark with only one holder of record, effectively ending public market transparency. Existing shareholders face severely reduced liquidity and information flow as the company moves to OTC Pink Sheets with no SEC reporting. Traders should expect minimal trading volume and potential price discovery breakdown.
Price Chart
Executive Summary
Aptose Biosciences Inc. filed a Form 15-12G to terminate its SEC registration under Section 12(g), effective July 1, 2026. The filing states there is only one holder of record, indicating the company's shares are now extremely concentrated, likely following a reverse merger, buyout, or near-total share consolidation. This is a bearish event for remaining public shareholders as the company will cease SEC reporting, eliminating transparency and likely moving trading to the OTC Pink Sheets with severely limited liquidity.
Key Facts
- Aptose Biosciences filed Form 15-12G to terminate its SEC registration under Section 12(g), effective July 1, 2026.
- The company reports only one (1) holder of record as of the certification date.
- The filing terminates the duty to file reports under Sections 13 and 15(d) of the Exchange Act.
- The filing was signed by Chairman, President, and CEO William G. Rice, Ph.D.
- The company's common shares trade on the OTC market (ticker APTOF).
- The filing relies on Rule 12g-4(a)(1) and Rule 12h-3(b)(1)(i), among others, to terminate reporting obligations.
Financial Impact
Deregistration eliminates all SEC reporting obligations for a company with only one holder of record. No financial figures are disclosed in the filing.
Risk Factors
- Complete loss of SEC reporting transparency — no more 10-Ks, 10-Qs, or 8-Ks
- Extreme illiquidity with only one holder of record; shares may become untradeable
- Potential delisting from OTC markets or further degradation to Grey Market
- No public financial disclosures going forward — risk of value destruction for remaining minority holders
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 4 SEC documents filed with EDGAR.
| Document | Accession Number |
|---|---|
| 15-12G Filing (Primary) | 0001193125-26-291469 |
| Document: 0001193125-26-291469-index-headers.html | 0001193125-26-291469 |
| Document: 0001193125-26-291469-index.html | 0001193125-26-291469 |
| Document: 0001193125-26-291469.txt | 0001193125-26-291469 |
Track record builds as more directional reports settle.
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Jul 1, 2026 16w ago | 15-12G | $1.68 $1.69 | ▼ −0.60% | ▼ −0.64% | — |
Jun 15, 2026 19w ago | 8-K | $1.61 $1.48 | ▼ −8.07% | ▼ −5.46% | — |
May 29, 2026 21w ago | 8-K | $1.65 $1.57 | ▼ −4.85% | ▼ −2.32% | — |
May 13, 2026 23w ago | 8-K | $1.71 $1.71 | · 0.00% | ▲ +0.72% | — |
Mar 19, 2026 31w ago | 8-K | $1.62 $1.64 | ▲ +1.23% | ▲ +3.45% | — |
US Market Status
Subscribe to SecBot
Get Real-Time SEC Filing Intelligence
Comprehensive SEC filing analysis delivered the moment filings hit EDGAR. Sentiment scoring, impact analysis, and actionable insights for every material event.
Create a free account Live analysis, Telegram alerts, watchlists and the MCP server for subscribers