---
schema_version: "secwatch.filing_event.v1"
accession: "0001140361-26-008271"
form_type: "8-K"
ticker: "AACB"
cik: "0002034334"
company_name: "Artius II Acquisition Inc."
filed_at: "2026-03-06T23:59:59+00:00"
generated_at: "2026-05-15T19:05:00.167462+00:00"
event_type: "other_material"
sentiment: "negative"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# Artius II receives Nasdaq deficiency notice for public holder minimum; issues $1M note

## Summary
- Issued up to $1M convertible promissory note to sponsor for working capital, convertible at $10 with 1.1x multiplier.
- Nasdaq notified Company on Mar 4, 2026, for failing to maintain 300 public holders on Nasdaq Global Market.
- Company has 45 days to submit compliance plan; may be granted up to 180 days from notice date to regain compliance.
- Note is unsecured, non-interest bearing, payable at business combination or liquidation, convertible at sponsor's election.
- Notice has no immediate effect on listing; Company plans to submit compliance plan within required timeframe.

## SEC filing metadata
- accession: 0001140361-26-008271
- form_type: 8-K
- ticker: AACB
- cik: 0002034334
- company_name: Artius II Acquisition Inc.
- filed_at: 2026-03-06T23:59:59+00:00
- event_type: other_material
- sentiment: negative
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 1.01, 2.03, 3.01, 3.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/2034334/000114036126008271/0001140361-26-008271-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/2034334/000114036126008271/ef20067389_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001140361-26-008271
- JSON: https://secwatch.observer/filing/0001140361-26-008271.json
- Plain text: https://secwatch.observer/filing/0001140361-26-008271.txt

## Source-grounded claims
- claim_id: 7b1f5f27c27b0fca12a58d1201ebb3cc077796fa
  claim: Artius II Acquisition Inc. incurred convertible notes of up to $1,000,000.00 with Artius II Acquisition Partners LLC at shall not accrue interest maturing upon the earlier of (i) the date on which the Company consummates its initial business combination, (ii) the date on which the Company is liquidated or (iii) th.
  evidence_excerpt: On March 6, 2026, Artius II Acquisition Inc. (the “Company”) issued a convertible unsecured promissory note (the “Working Capital Promissory Note”) in the aggregate principal amount of up to $1,000,000.00 to Artius II Acquisition Partners LLC
  evidence_url: https://www.sec.gov/Archives/edgar/data/2034334/000114036126008271/0001140361-26-008271-index.htm
- claim_id: 52ea198d8b03af55f2c1695d3521ec0b60984e00
  claim: Artius II Acquisition Inc. received a nasdaq deficiency notice notice regarding other (rules 5452(a)(2)(A)).
  evidence_excerpt: March 4, 2026, the Company received a notice (the “Notice”) from The Nasdaq Stock Market LLC (“Nasdaq”) indicating that the Company was not in compliance with Nasdaq’s Listing Rule 5452(a)(2)(A) because the Company failed to maintain a minimum of 300 public holders of its units and Class A ordinary shares listed on The Nasdaq Global Market, as required under the Nasdaq continued listing standards for The Nasdaq Global Market. The Notice has no immediate effect on the listing of the Company’s securities on Nasdaq. Under Nasdaq Listing Rules, the Company has 45 calendar days to submit a plan
  evidence_url: https://www.sec.gov/Archives/edgar/data/2034334/000114036126008271/0001140361-26-008271-index.htm
- claim_id: 14d24e8b56559722a864760defd8027c70145e9e
  claim: Artius II Acquisition Inc. entered into Working Capital Promissory Note with Artius II Acquisition Partners LLC valued at $1,000,000.00 (effective 2026-03-06).
  evidence_excerpt: On March 6, 2026, Artius II Acquisition Inc. (the “Company”) issued a convertible unsecured promissory note (the “Working Capital Promissory Note”) in the aggregate principal amount of up to $1,000,000.00 to Artius II Acquisition Partners LLC
  evidence_url: https://www.sec.gov/Archives/edgar/data/2034334/000114036126008271/0001140361-26-008271-index.htm

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