Quantumsphere Acquisition Corp (QUMS) — research page
US · us-cm-kg/NASDAQ/QUMS · as of 2026-11-08
Identity and listing
The issuer is Quantumsphere Acquisition Corp, listed on NASDAQ under ticker QUMS. ISIN USG7387B1064; LEI not on the record (no GLEIF record with the exact legal name in jurisdiction US-E9). Security type is SPAC (by SIC 6770); segment not on the record; sector 6770 Blank Checks; jurisdiction Cayman Islands. Listing status: listed, not halted.
| field | value | source · read date |
|---|---|---|
| name | Quantumsphere Acquisition Corp | source · 2026-11-08 |
| exchange | NASDAQ | source · 2026-11-08 |
| ticker | QUMS | source · 2026-11-08 |
| ISIN | USG7387B1064 | source · 2026-10-13 |
| LEI | not on the record | |
| security type | SPAC (by SIC 6770) | source · 2026-11-08 |
| segment | not on the record | |
| sector | 6770 Blank Checks | source · 2026-11-08 |
| jurisdiction | Cayman Islands | source · 2026-11-08 |
| status | listed, not halted | source · 2026-11-08 |
The disclosure read
The record holds 16 filings in the twelve months to 2026-11-08, across 13 filing days, of which 1 is ad hoc, 3 corporate news, 7 regulatory filing and 5 results. The median gap between filing days is 19.0 days. The latest filing is dated 2026-10-13 and is a regulatory filing, 26 days before the record date. The NASDAQ peer median is 52 filings, a median cadence gap of 6.0 days and a median latency of 5.0 days across 4359 issuers. The 6770 Blank Checks peer median is 26 filings, a median cadence gap of 6.5 days and a median latency of 44 days across 819 issuers.
| filings | median gap between filing days | days from latest filing to as-of | |
|---|---|---|---|
| this issuer | 16 | 19 | 26 |
| exchange median: NASDAQ (4359 issuers) | 52 | 6 | 5 |
| sector median: 6770 Blank Checks (819 issuers) | 26 | 6.5 | 44 |
| date | type | category | filing |
|---|---|---|---|
| 2026-10-13 | regulatory_filing | 425 | 425 — 425 |
| 2026-10-13 | corporate_news | 8-K | 8-K — 8-K (items 1.01,7.01,9.01) |
| 2026-10-06 | regulatory_filing | SCHEDULE 13G/A | SCHEDULE 13G/A |
| 2026-09-02 | ad_hoc | 8-K | 8-K — 8-K (items 1.02,9.01) |
| 2026-08-14 | results | 10-Q | 10-Q — 10-Q |
window 2025-11-08 to 2026-11-08 · the node's disclosure lines, as get_filings serves them
Auditor
The auditor is not on the record (no dei:AuditorName tag on the latest annual report cover; foreign private issuers and older filings carry none). Auditor location is not on the record. The record holds no auditor changes.
Events and halts
The record holds no listing, delisting or name change lines. Domicile change is not on the record (EDGAR states no dated change of state of incorporation on a filing line). Segment move is not on the record (the exchanges' tier transfers are not EDGAR filings). Halt flag: listed, not halted.
Orderability
The outcome is not determinable: the chapter's orderability section carries no client categories, so the outcome cannot name its client category. Signal code and rule version: acm-68000/us/reasonable-basis-suitability-finra-rule-2111/r1, chapter as of 2026-11-04.
rule acm-68000/us/reasonable-basis-suitability-finra-rule-2111/r1 · chapter as of 2026-11-04 · the full outcome: get_orderability
Coverage
None found: the issuer's investor-relations page names no research houses, and the record holds a count of 0.
Open research
None found: the record holds no openly published research notes for the issuer.
Licensed
Licensed research: none loaded. A licensed row is served only to an agent whose firm holds that licence (licensor, entitlement). No licensed row is loaded.
| licensor | entitlement | title | date | source |
|---|---|---|---|---|
| none loaded |
As-of depth
The record holds the issuer's sealed years 2025 and 2026. The market's earliest sealed date is 2021-01-04. The live record began on 2026-09-12.
Sources
7 source pages are named on this page; every value above carries its own source page and read date in the numbers.
- 10.1
- https://www.sec.gov/files/company_tickers_exchange.json (identity.exchange)
- 10.2
- https://www.sec.gov/data-research/sec-markets-data/fails-deliver-data (identity.isin)
- 10.3
- https://data.sec.gov/submissions/CIK0002070900.json (identity.jurisdiction)
- 10.4
- https://mcp.us-cm-kg.ai/events/NASDAQ/QUMS (the disclosure lines)
- 10.5
- https://www.nasdaqtrader.com/rss.aspx?feed=tradehalts (the halt flag)
- 10.6
- https://mcp.us-cm-kg.ai/book/aio.json (the orderability chapter)
- 10.7
- https://mcp.us-cm-kg.ai/record/NASDAQ/QUMS (the record)
Read it by agent
The same page, signed and receipted: get_research at https://mcp.getresearch.ai/mcp with {"isin":"USG7387B1064"}. Twins: .md · .json. Written: Claude through the platform account, Haiku class; one pass; checked against the numbers. Page hash sha256:4cf6a2a04bc41d73.