# EDGAR Filing Document

**Accession Number:** 0002034334
**File Stem:** 0001140361-26-011804
**Filing Date:** 2026-3
**Character Count:** 19248
**Document Hash:** 6bb37d2a9966bfa183cf6fed321bc64e
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001140361-26-011804.hdr.sgml**: 20260327

**ACCESSION NUMBER**: 0001140361-26-011804

**CONFORMED SUBMISSION TYPE**: 8-K

**PUBLIC DOCUMENT COUNT**: 13

**CONFORMED PERIOD OF REPORT**: 20260323

**ITEM INFORMATION**: Entry into a Material Definitive Agreement

**ITEM INFORMATION**: Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing

**ITEM INFORMATION**: Financial Statements and Exhibits

**FILED AS OF DATE**: 20260327

**DATE AS OF CHANGE**: 20260327

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Artius II Acquisition Inc.
- **CENTRAL INDEX KEY:** 0002034334
- **STANDARD INDUSTRIAL CLASSIFICATION:** BLANK CHECKS [6770]
- **ORGANIZATION NAME:** 05 Real Estate & Construction
- **EIN:** 000000000
- **STATE OF INCORPORATION:** E9
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 8-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-42521
- **FILM NUMBER:** 26808692

**BUSINESS ADDRESS:**
- **STREET 1:** 3 COLUMBUS CIRCLE
- **STREET 2:** SUITE 2215
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10019
- **BUSINESS PHONE:** 212 309 7668

**MAIL ADDRESS:**
- **STREET 1:** 3 COLUMBUS CIRCLE
- **STREET 2:** SUITE 2215
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10019

?xml version='1.0' encoding='ASCII'?

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### UNITED STATES

### SECURITIES AND EXCHANGE COMMISSION

#### Washington, D.C. 20549

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### FORM 8-K

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#### CURRENT REPORT

#### Pursuant to Section 13 or 15(d) of

#### The Securities Exchange Act of 1934
Date of Report (Date of earliest event reported)

March 23, 2026

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## ARTIUS II ACQUISITION INC.
(Exact name of registrant as specified in its charter)

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| | | |
|:---|:---|:---|
| **Cayman Islands**<br>| **1-42521**  | **98-1802901** |
| (State or other jurisdiction of incorporation) | (Commission File Number) | (IRS Employer Identification No.) |

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#### 3 Columbus Circle, Suite 1609

#### New York, NY 10019
(Address of principal executive offices, including zip code)

(212) 309-7668

(Registrant's telephone number, including area code)

#### Not Applicable
(Former name or former address, if changed since last report)

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Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

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| | | |
|:---|:---|:---|
| **Title of each class** | **Trading Symbol(s)** | **Name of each exchange on which registered** |
| **Units, each consisting of one Class A ordinary share, $0.0001 par value, one right to receive one tenth of one Class A ordinary share, and one contingent right**<br>| **AACBU**<br>| **The Nasdaq Stock Market LLC**<br>|
| **Class A ordinary shares, par value $0.0001 per share**<br>| **AACB**<br>| **The Nasdaq Stock Market LLC**<br>|
| **Rights, each right entitling the holder to receive one tenth of one Class A ordinary share**<br>| **AACBR**<br>| **The Nasdaq Stock Market LLC**<br>|

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Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☒

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

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| | |
|:---|:---|
| Item 1.01 | **Entry into a Material Definitive Agreement.** |

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#### Amended and Restated Working Capital Promissory Note
As previously disclosed, Artius II Acquisition Inc. (the "Company") issued a convertible unsecured promissory note (the "Original Working Capital Promissory Note") in the aggregate principal amount of up to $1,000,000.00 to Artius II Acquisition Partners LLC, a Delaware limited liability company (the "Sponsor"), in order to provide the Company with additional working capital.

On March 27, 2026, the Company and the Sponsor amended and restated the Original Working Capital Promissory Note (such amended and restated promissory note, the "Amended and Restated Working Capital Promissory Note") to remove the Original Working Capital Promissory Note's conversion feature and provide that it is payable solely in cash.

The foregoing description of the Amended and Restated Working Capital Promissory Note does not purport to be complete and is qualified in its entirety by reference to the full text of the Amended and Restated Working Capital Promissory Note, which is filed hereto as Exhibit 10.1 and which is incorporated herein by reference.

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| | |
|:---|:---|
| Item 3.01 | **Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing.** |

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As previously disclosed on March 6, 2026, the Company received a 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 "Public Holders Requirement"). On March 17, 2026, the Company submitted a plan to Nasdaq to regain compliance with the Public Holders Requirement (the "Plan").

On March 23, 2026, Nasdaq provided the Company notice that Nasdaq accepted the Plan and granted the Company an extension until August 31, 2026, to regain compliance with the Public Holders Requirement.

The Company is currently working toward implementing the Plan, as discussed with Nasdaq, to regain compliance. There can be no assurance that the Company will be able to regain compliance. If the Company does not regain compliance by August 31, 2026, or if the Company fails to satisfy another Nasdaq requirement for continued listing, Nasdaq could provide notice that the Company's units and Class A ordinary shares will become subject to delisting. In such event, Nasdaq rules permit the Company to appeal any delisting determination. The hearing request would stay any suspension or delisting action pending the conclusion of the hearing process and the expiration of any additional extension period granted by the panel following the hearing.

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| | |
|:---|:---|
| Item 9.01 | **Financial Statements and Exhibits.**  |

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(d) Exhibits.

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| | |
|:---|:---|
| **Exhibit No.** | **Description** |
| [10.1](ef20069206_ex10-1.htm) | Amended and Restated Working Capital Promissory Note, dated March 27, 2026, issued by the Company to the Sponsor. |
| 104 | Cover Page Interactive Data File (embedded within the Inline XBRL document) |

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#### SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

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| | |
|:---|:---|
|  | **ARTIUS II ACQUISITION INC.** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Date: March 27, 2026 | /s/ Boon Sim |
|  | Name: Boon Sim |
|  | Title: Chief Executive Officer |

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## Exhibit 10.1

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**Exhibit 10.1**<br>

THIS PROMISSORY NOTE (THIS "**NOTE**") HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE "**SECURITIES ACT**"). THIS NOTE HAS BEEN ACQUIRED FOR INVESTMENT ONLY AND MAY NOT BE SOLD, TRANSFERRED OR ASSIGNED IN THE ABSENCE OF REGISTRATION OF THE RESALE THEREOF UNDER THE SECURITIES ACT OR AN OPINION OF COUNSEL REASONABLY SATISFACTORY IN FORM, SCOPE AND SUBSTANCE TO THE COMPANY THAT SUCH REGISTRATION IS NOT REQUIRED.

#### AMENDED AND RESTATED PROMISSORY NOTE

#### <br>

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| | |
|:---|:---|
| Principal Amount: Up to $1,000,000 | Dated as of March 27, 2026 |
|  | New York, New York |

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**WHEREAS**, Artius II Acquisition Inc., a Cayman Islands exempted company and blank check company (the "**Payor**") and Artius II Acquisition Partners LLC or its registered assigns or successors in interest (the "**Payee**"), are the payor and payee, respectively, of that certain promissory note, issued on March 6, 2026 by the Payor (the "**Original Note**"); and

**WHEREAS**, the Payor and Payee have agreed to amend the terms of the Original Note as set forth herein.

**FOR VALUE RECEIVED**, the Payor hereby promises to pay to the order of the Payee the principal sum of up to One Million Dollars ($1,000,000) (such sum representing the original principal on the Original Note and including all amounts previously drawn down by the Payor on the Original Note) or such lesser amount as shall have been advanced by the Payee to the Payor and shall remain unpaid under this Note on the Maturity Date (as defined below) in lawful money of the United States of America, on the terms and conditions described below. All payments on this Note shall be made by check or wire transfer of immediately available funds or as otherwise determined by the Payor to such account as the Payee may from time to time designate by written notice in accordance with the provisions of this Note.

**1.** **Principal.** The entire unpaid principal balance of this Note shall be payable by the Payor on the earlier of (a) the closing of the Payor's initial business combination or (b) the liquidation of the Payor (the "**Maturity Date**"). The principal balance may be prepaid at any time by the Payor at its election and without penalty. Under no circumstances shall any individual, including but not limited to any officer, director, employee or shareholder of the Payor, be obligated personally for any obligations or liabilities of the Payor hereunder.

**2.** **Interest.** No interest shall accrue on the unpaid principal balance of this Note.

**3.** **Drawdown Requests.** The Payor and the Payee agree that the Payor may request, from time to time, up to One Million Dollars ($1,000,000) in drawdowns under this Note to be used for costs and expenses related to the Payor's ongoing operations. Principal of this Note may be drawn down from time to time prior to the Maturity Date upon written request from the Payor to the Payee (each, a "**Drawdown Request**"). Each Drawdown Request must state the amount to be drawn down, and must not be an amount less than Ten Thousand Dollars ($10,000) unless agreed upon by the Payor and the Payee. The Payee shall fund each Drawdown Request no later than three (3) business days after receipt of a Drawdown Request; *provided*, *however*, that the maximum amount of drawdowns outstanding under this Note at any time may not exceed One Million Dollars ($1,000,000). Once an amount is drawn down under this Note, it shall not be available for future Drawdown Requests, even if prepaid. No fees, payments or other amounts shall be due to the Payee in connection with, or as a result of, any Drawdown Request by the Payor.

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**4.** **Application of Payments.** All payments shall be applied first to payment in full of any costs incurred in the collection of any sum due under this Note, including (without limitation) reasonable attorney's fees, then to the payment in full of any late charges and finally to the reduction of the unpaid principal balance of this Note.

**5.** **Events of Default.** The following shall constitute an event of default ("**Event of Default**"):

(a)<u>Failure to Make Required Payments</u>. Failure by the Payor to pay the principal amount due pursuant to this Note within five (5) business days of the Maturity Date.

(b) <u>Voluntary Bankruptcy, Etc.</u> The commencement by the Payor of a voluntary case under any applicable bankruptcy, insolvency, reorganization, rehabilitation or other similar law, or the consent by it to the appointment of or taking possession by a receiver, liquidator, assignee, trustee, custodian, sequestrator (or other similar official) of the Payor or for any substantial part of its property, or the making by it of any assignment for the benefit of creditors, or the failure of the Payor generally to pay its debts as such debts become due, or the taking of corporate action by the Payor in furtherance of any of the foregoing.

(c)<u>Involuntary Bankruptcy, Etc.</u> The entry of a decree or order for relief by a court having jurisdiction in the premises in respect of the Payor in an involuntary case under any applicable bankruptcy, insolvency or other similar law, or appointing a receiver, liquidator, assignee, custodian, trustee, sequestrator (or similar official) of the Payor or for any substantial part of its property, or ordering the winding-up or liquidation of its affairs, and the continuance of any such decree or order unstayed and in effect for a period of sixty (60) consecutive days.

**6.** Remedies.

(a)Upon the occurrence of an Event of Default specified in Section 8(a) hereof, the Payee may, by written notice to the Payor, declare this Note to be due immediately and payable, whereupon the unpaid principal amount of this Note, and all other amounts payable hereunder, shall become immediately due and payable without presentment, demand, protest or other notice of any kind, all of which are hereby expressly waived, anything contained herein or in the documents evidencing the same to the contrary notwithstanding.

(b)Upon the occurrence of an Event of Default specified in Sections 8(b) or 8(c), the unpaid principal balance of this Note, and all other sums payable with regard to this Note, shall automatically and immediately become due and payable, in all cases without any action on the part of the Payee.

**7.** **Waivers.** The Payor waives presentment for payment, demand, notice of dishonor, protest, and notice of protest with regard to this Note, all errors, defects and imperfections in any proceedings instituted by the Payee under the terms of this Note, and all benefits that might accrue to the Payor by virtue of any present or future laws exempting any property, real or personal, or any part of the proceeds arising from any sale of any such property, from attachment, levy or sale under execution, or providing for any stay of execution, exemption from civil process, or extension of time for payment; and the Payor agrees that any real estate that may be levied upon pursuant to a judgment obtained by virtue hereof, or any writ of execution issued hereon, may be sold upon any such writ in whole or in part in any order desired by the Payee.

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**8.** **Unconditional Liability.** The Payor hereby waives all notices in connection with the delivery, acceptance, performance, default, or enforcement of the payment of this Note, and agrees that its liability shall be unconditional, without regard to the liability of any other party, and shall not be affected in any manner by any indulgence, extension of time, renewal, waiver or modification granted or consented to by the Payee, and consents to any and all extensions of time, renewals, waivers, or modifications that may be granted by the Payee with respect to the payment or other provisions of this Note, and agrees that additional payors, endorsers, guarantors, or sureties may become parties hereto without notice to the Payor or affecting the Payor's liability hereunder.

**9.** **Notices.** All notices, statements or other documents which are required or contemplated by this Note shall be made in writing and delivered: (i) personally or sent by first class registered or certified mail, overnight courier service or facsimile or electronic transmission to the address designated in writing, (ii) by facsimile to the number most recently provided to such party or such other address or fax number as may be designated in writing by such party or (iii) by electronic mail, to the electronic mail address most recently provided to such party or such other electronic mail address as may be designated in writing by such party. Any notice or other communication so transmitted shall be deemed to have been given on the day of delivery, if delivered personally, on the business day following receipt of written confirmation, if sent by facsimile or electronic transmission, one (1) business day after delivery to an overnight courier service or five (5) days after mailing if sent by mail.

**10.** **Construction.** THIS NOTE SHALL BE CONSTRUED AND ENFORCED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK, WITHOUT REGARD TO CONFLICT OF LAW PROVISIONS THEREOF.

**11.** **Severability.** Any provision contained in this Note which is prohibited or unenforceable in any jurisdiction shall, as to such jurisdiction, be ineffective to the extent of such prohibition or unenforceability without invalidating the remaining provisions hereof, and any such prohibition or unenforceability in any jurisdiction shall not invalidate or render unenforceable such provision in any other jurisdiction.

**12.** **Trust Waiver.** Notwithstanding anything herein to the contrary, the Payee hereby waives any and all right, title, interest or claim of any kind ("**Claim**") in or to any distribution of or from the trust account in which the proceeds of the Payor's initial public offering (the "**IPO**") (including the deferred underwriters discounts and commissions) have been deposited, as described in greater detail in the registration statement and prospectus filed by the Payor with the Securities and Exchange Commission in connection with the IPO, and hereby agrees not to seek recourse, reimbursement, payment or satisfaction for any Claim against the trust account for any reason whatsoever.

**13.** **Amendment; Waiver.** Any amendment hereto or waiver of any provision hereof may be made with, and only with, the written consent of the Payor and the Payee.

**14.** **Assignment.** No assignment or transfer of this Note or any rights or obligations hereunder may be made by any party hereto (by operation of law or otherwise) without the prior written consent of the other party hereto and any attempted assignment without the required consent shall be void.

[Signature page follows]

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**IN WITNESS WHEREOF**, the Payor, intending to be legally bound hereby, has caused this Note to be duly executed by the undersigned as of the day and year first above written.

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| | |
|:---|:---|
| **ARTIUS II ACQUISITION INC.** | **ARTIUS II ACQUISITION INC.** |
| By: | /s/ Boon Sim |
|  | Name: Boon Sim |
|  | Title: Chief Executive Officer |

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Acknowledged and agreed to

as of the date first written above.

#### ARTIUS II ACQUISITION PARTNERS LLC

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| | |
|:---|:---|
| By: | /s/ Boon Sim |
|  | Name: Boon Sim |
|  | Title: Managing Partner |

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