Home / Filing-delay notices (10-Q) / Quantumsphere Acquisition Corp
Filed 2026-02-17 路 Form NT 10-Q 路 Accession 0001829126-26-001394 micro
Price before filing: $10.07 (2026-02-13 close, split/dividend-adjusted)
Market cap at flag: $83.4M (2026-02-17) 路 Latest: $86.0M (2026-10-16)
| Window | QUMS | SPY | vs SPY | |
|---|---|---|---|---|
| 30 days | +0.3% | -3.2% | +3.5% | 2026-03-19 |
| 90 days | +1.2% | +8.6% | -7.5% | 2026-05-18 |
| 180 days | +2.5% | +13.9% | -11.5% | 2026-08-17 |
| 1 year | pending | pending | until 2027-02-17 |
Return from the last close before the filing date to the first close on/after the window end. Pending windows have not fully elapsed. Past performance says nothing certain about the future.
90 days before the flag: no open-market insider sales or purchases reported.
30 days after: none reported.
Open-market purchases and sales (Form 4 codes P and S) by officers, directors and 10% owners, by transaction date, from 2025-11-19 to 2026-03-19. Excludes option exercises, grants, gifts and tax withholding. Amended filings replace the originals; joint filings count once. Foreign private issuers do not file Form 4. Many insider sales are pre-scheduled (10b5-1 plans) and are not by themselves a sign of wrongdoing.
The company filed Form NT 10-Q, telling the SEC it could not file its quarterly report on time, and then filed the report within the 5-day extension. The SEC treats a report filed within the extension as timely, so this is the mildest kind of flag, but the notice itself is a warning sign that investors often react to: something, often the audit or the accounting, took longer than planned.
Status: filed within extension (report filed 2026-02-20) · the SEC treats a report filed within the extension as timely
Why this score: report filed within the extension on 2026-02-20
Read the original filing on SEC.gov →
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Not investment advice. Automated summary; verify against the filing.
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