---
schema_version: "secwatch.filing_event.v1"
accession: "0001437749-26-013968"
form_type: "8-K"
ticker: "ATII"
cik: "0002028516"
company_name: "Archimedes Tech SPAC Partners II Co."
filed_at: "2026-04-30T23:59:59+00:00"
generated_at: "2026-05-15T01:13:17.982959+00:00"
event_type: "m_and_a"
sentiment: "neutral"
materiality_score: 0.25
calibrated_materiality_score: 0.25
confidence: "low"
source: SEC EDGAR
---

# Forge Nano and SPAC ATII hold investor call reviewing business combination; no new financial terms disclosed

## Summary
- Call reviewed the previously announced business combination between Forge Nano and Archimedes Tech SPAC Partners II (ATII).
- Forge Nano highlighted its atomic-scale platform for defense, energy, and digital infrastructure during the presentation.
- Transcript furnished as Exhibit 99.1 contains only introductory remarks; substantive financial or transaction updates not provided in filing.
- Merger agreement announced April 20, 2026; no updates to deal terms or closing timeline disclosed.

## SEC filing metadata
- accession: 0001437749-26-013968
- form_type: 8-K
- ticker: ATII
- cik: 0002028516
- company_name: Archimedes Tech SPAC Partners II Co.
- filed_at: 2026-04-30T23:59:59+00:00
- event_type: m_and_a
- sentiment: neutral
- materiality_score: 0.25
- calibrated_materiality_score: 0.25
- confidence: low
- sec_items: 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/2028516/000143774926013968/0001437749-26-013968-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/2028516/000143774926013968/atii20260430_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001437749-26-013968
- JSON: https://secwatch.observer/filing/0001437749-26-013968.json
- Plain text: https://secwatch.observer/filing/0001437749-26-013968.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.