Monitor for SEC effectiveness of the S-4 and the subsequent shareholder vote date. If the S-4 is cleared, the deal will likely proceed to a vote — any material redemptions at that stage could affect the trust cash available to the combined company.
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Executive Summary
Archimedes Tech SPAC Partners II Co. (ATII) announced the filing of an amendment to its S-4 registration statement for the proposed business combination with Forge Nano, Inc. The S-4 has not yet been declared effective by the SEC. This filing is a routine procedural step to advance the merger timeline. No new financial terms, deal value, or timeline changes were disclosed.
Key Financial Metrics
Key Facts
- ATII filed an amendment to the S-4 registration statement for the business combination with Forge Nano on June 22, 2026.
- The S-4 has not yet been declared effective by the SEC.
- ATII completed a $230 million IPO in February 2025.
- Forge Nano applies Atomic Layer Deposition technology for semiconductor and defense battery applications.
- The prior SPAC of the same team merged with SoundHound AI in April 2022.
Financial Impact
No financial terms, deal value, or revised synergy estimates were disclosed in this filing.
Risk Factors
- Shareholder redemptions could reduce the cash available post-close if the trust is drawn down significantly.
- The S-4 may not be declared effective in a timely manner, delaying or scuttling the deal.
- Forge Nano may face execution risks in ramping ALD production for defense and semiconductor clients.
Documents Analyzed
This report is based on 4 SEC documents filed with EDGAR.
| Document | Accession Number |
|---|---|
| 425 Filing (Primary) | 0001104659-26-076805 |
| Document: 0001104659-26-076805-index-headers.html | 0001104659-26-076805 |
| Document: 0001104659-26-076805-index.html | 0001104659-26-076805 |
| Document: 0001104659-26-076805.txt | 0001104659-26-076805 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Oct 27, 2026 today | 8-K | $5.37 | awaiting T+1 | — | $4.67 (+13.04%) |
Oct 22, 2026 5d ago | Press Release | $6.13 $5.00 | ▼ −18.43% | ▼ −19.14% | $4.67 (−23.82%) |
Oct 22, 2026 5d ago | 3 | $10.10 $6.13 | ▼ −39.31% | ▼ −38.78% | $4.67 (−53.76%) |
Oct 22, 2026 5d ago | 3 | $10.10 $6.13 | ▼ −39.31% | ▼ −38.78% | $4.67 (−53.76%) |
Oct 22, 2026 5d ago | 3 | $10.10 $6.13 | ▼ −39.31% | ▼ −38.78% | $4.67 (−53.76%) |
Oct 21, 2026 5d ago | 8-K | $10.10 $6.13 | ▲ +39.31% | ▲ +38.78% | $4.67 (+53.76%) |
Oct 16, 2026 10d ago | 425 | $8.55 $7.17 | ▼ −16.09% | ▼ −16.43% | $4.67 (−45.35%) |
Oct 13, 2026 14d ago | 425 | $10.06 $8.86 | ▼ −11.93% | ▼ −12.21% | $4.67 (−53.58%) |
Sep 24, 2026 4w ago | 425 | $10.69 $10.69 | ▼ −0.05% | ▲ +0.70% | $4.67 (−56.31%) |
Sep 23, 2026 4w ago | EFFECT | $10.68 $10.69 | ▲ +0.05% | ▲ +0.13% | $4.67 (−56.27%) |
US Market Status
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