Archimedes Tech SPAC Partners II Co. (ATII) Form 8-K Material Events
Archimedes Tech SPAC Partners II Co. (ATII) is a publicly traded company on the Nasdaq, categorized under SIC 6770 (Blank Checks). Access real-time SEC filings, 10-K annual reports, 10-Q quarterlies, 8-K current reports, PCAOB auditor history, and executive compensation disclosures.
Ticker: ATII
CIK: 2028516
Exchange: Nasdaq
SIC 6770: Blank Checks
Fiscal Year End: 12/31
Independent PCAOB Auditor
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Audit Firm
WithumSmith+Brown, PC
Auditor SinceSince 6/10/2024 12:00:00 AM
Lead Engagement PartnerMark Deters
Audit LocationNew York, New York, United States
Latest SEC EDGAR Filings
Showing 10-K, 10-Q, 8-K, Form 4, and other SEC submissions| Form | Filing Date | Reporting Period | Description | Accession Number | Actions |
|---|---|---|---|---|---|
| DEFA14A | 2026-10-13 | — | DEFA14A | 0001104659-26-115505 | View SEC Doc Filr Page |
| 425 | 2026-10-13 | — | 425 | 0001104659-26-115504 | View SEC Doc Filr Page |
| 8-K | 2026-10-13 | 2026-10-13 | FORM 8-K | 0001104659-26-115500 | View SEC Doc Filr Page |
| 425 | 2026-09-24 | — | 425 | 0001104659-26-110424 | View SEC Doc Filr Page |
| DEFM14A | 2026-09-24 | — | DEFM14A | 0001104659-26-110234 | View SEC Doc Filr Page |
| 425 | 2026-09-23 | — | 425 | 0001104659-26-109977 | View SEC Doc Filr Page |
| 425 | 2026-09-22 | — | 425 | 0001104659-26-109671 | View SEC Doc Filr Page |
| 425 | 2026-09-15 | — | 425 | 0001104659-26-107735 | View SEC Doc Filr Page |
| 425 | 2026-09-02 | — | 425 | 0001104659-26-104791 | View SEC Doc Filr Page |
| SCHEDULE 13G/A | 2026-08-14 | — | SCHEDULE 13G/A Filing | 0001346554-26-000069 | View SEC Doc Filr Page |
| 10-Q | 2026-08-13 | 2026-06-30 | FORM 10-Q | 0001437749-26-027710 | View SEC Doc Filr Page |
| 425 | 2026-07-29 | — | 425 | 0001104659-26-088149 | View SEC Doc Filr Page |
| 425 | 2026-07-27 | — | 425 | 0001104659-26-087145 | View SEC Doc Filr Page |
| 425 | 2026-07-14 | — | 425 | 0001104659-26-083535 | View SEC Doc Filr Page |
| 8-K | 2026-07-14 | 2026-07-14 | FORM 8-K | 0001104659-26-083534 | View SEC Doc Filr Page |
| 425 | 2026-06-25 | — | 425 | 0001104659-26-077836 | View SEC Doc Filr Page |
| 8-K | 2026-06-25 | 2026-06-25 | FORM 8-K | 0001104659-26-077835 | View SEC Doc Filr Page |
| 425 | 2026-06-23 | — | 425 | 0001104659-26-076805 | View SEC Doc Filr Page |
| 10-Q | 2026-05-14 | 2026-03-31 | FORM 10-Q | 0001437749-26-017077 | View SEC Doc Filr Page |
| 425 | 2026-05-08 | — | 425 | 0001104659-26-057352 | View SEC Doc Filr Page |
| 425 | 2026-04-30 | — | FORM 425 | 0001437749-26-013969 | View SEC Doc Filr Page |
| 8-K | 2026-04-30 | 2026-04-28 | FORM 8-K | 0001437749-26-013968 | View SEC Doc Filr Page |
| 425 | 2026-04-23 | — | FORM 425 | 0001437749-26-013061 | View SEC Doc Filr Page |
| 425 | 2026-04-22 | — | FORM 425 | 0001437749-26-012950 | View SEC Doc Filr Page |
| 8-K | 2026-04-22 | 2026-04-21 | FORM 8-K | 0001437749-26-012949 | View SEC Doc Filr Page |