# EDGAR Filing Document

**Accession Number:** 0001834032
**File Stem:** 0001213900-25-103477
**Filing Date:** 2025-10
**Character Count:** 5570
**Document Hash:** 159edc0d213c72efc3ac42b2213a9f52
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001213900-25-103477.hdr.sgml**: 20251029

**ACCESSION NUMBER**: 0001213900-25-103477

**CONFORMED SUBMISSION TYPE**: 8-K

**PUBLIC DOCUMENT COUNT**: 13

**CONFORMED PERIOD OF REPORT**: 20251028

**ITEM INFORMATION**: Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

**FILED AS OF DATE**: 20251029

**DATE AS OF CHANGE**: 20251029

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Constellation Acquisition Corp I
- **CENTRAL INDEX KEY:** 0001834032
- **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:** 001-39945
- **FILM NUMBER:** 251430156

**BUSINESS ADDRESS:**
- **STREET 1:** 200 PARK AVENUE, 32ND FLOOR
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10166
- **BUSINESS PHONE:** 646-585-8975

**MAIL ADDRESS:**
- **STREET 1:** 200 PARK AVENUE, 32ND FLOOR
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10166

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

**UNITED STATES**

**SECURITIES AND EXCHANGE COMMISSION**

**Washington, D.C. 20549**

**FORM 8-K**

**CURRENT REPORT**

**Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934**

Date of Report (Date of earliest event reported): **October 28, 2025**

**CONSTELLATION ACQUISITION CORP I**

(Exact name of registrant as specified in its charter)

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| | | |
|:---|:---|:---|
| **Cayman Islands** | **001-39945** | **98-1574835** |
| (State or other jurisdiction <br> of incorporation) | (Commission File Number) | (IRS Employer <br> Identification No.) |

---

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| | |
|:---|:---|
| **200 Park Avenue <br> 32nd Floor<br> New York, NY** | **10166** |
| (Address of principal executive offices) | (Zip Code) |

---

**(646) 585-8975** 

Registrant's telephone number, including area code

**Not Applicable**

(Former name or former address, if changed since last report)

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** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Class A ordinary shares, par value $0.0001 per share | CSTAF | OTC Pink Market |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Redeemable warrants, each whole warrant exercisable for one Class A ordinary share at an exercise price of $11.50 | CSTWF | OTCQB® Venture Market |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Units, each consisting of one Class A ordinary share and one-third of one redeemable warrant | CSTUF | OTCQB® Venture Market |

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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. ☐

**Item 2.03. Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement or a Registrant.**

On October 28, 2025, Constellation Acquisition Corp I (the "Company") drew an aggregate of $5,000 (the "Extension Funds"), as approved by unanimous resolution of the extension committee of the Company's board of directors, dated October 24, 2025, pursuant to the unsecured promissory note, dated January 30, 2024 between the Company and Constellation Sponsor LP (the "Note"), which Extension Funds the Company deposited into the Company's trust account for its public shareholders. This deposit enables the Company to extend the date by which it must complete its initial business combination from October 29, 2025 to November 29, 2025 (the "Extension"). The Extension is the ninth of eleven one-month extensions permitted under the Company's amended and restated memorandum and articles of association and provides the Company with additional time to complete its initial business combination. The Note does not bear interest and matures upon closing of the Company's initial business combination. In the event that the Company does not consummate a business combination, the Note will be repaid only from amounts remaining outside of the Company's trust account, if any.

**SIGNATURE**

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.

Dated: October 29, 2025

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| | |
|:---|:---|
| CONSTELLATION ACQUISITION CORP I | CONSTELLATION ACQUISITION CORP I |
| By: | /s/ Chandra R. Patel |
| Name: | Chandra R. Patel |
| Title: | Chief Executive Officer |

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