Company: CSTAF
Filing Date: 2025-01-10
Form Type: DEF 14A
Source: 0001213900-25-002661
Chunk: 0

Company: Constellation Acquisition Corp I
Filing Date: 2025-01-10
Form: DEF 14A
Chunk 0
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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549 ______________________ SCHEDULE 14A ______________________ Proxy Statement Pursuant to Section 14(a) of the
Securities Exchange Act of 1934

| Filed by the Registrant                    |     | ☒ |
| Filed by a Party other than the Registrant |     | ☐ |

Check the appropriate box:

| ☐ |     | Preliminary Proxy Statement                                                     |
| ☐ |     | Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) |
| ☒ |     | Definitive Proxy Statement                                                      |
| ☐ |     | Definitive Additional Materials                                                 |
| ☐ |     | Soliciting Material under §240.14a-12                                           |

Constellation Acquisition Corp I (Name of Registrant as Specified In Its Charter) ______________________________________________________________
(Name of Person(s) Filing Proxy Statement, if other than the Registrant) Payment of Filing Fee (Check the appropriate box):

| ☒ |     | No fee required.                                                                                   |
| ☐ |     | Fee paid previously with preliminary materials.                                                    |
| ☐ |     | Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a6(i)(1) and 0-11 |

LETTER TO SHAREHOLDERS OF CONSTELLATION ACQUISITION CORP I 200 Park Avenue, 32 nd Floor
New York, NY 10166 Dear Constellation Acquisition Corp I Shareholder: You are cordially invited to attend an extraordinary general meeting of Constellation Acquisition Corp I, a Cayman Islands exempted company (“ Constellation” or the “ Company”), which will be held on January27, 2025, at 1:30 p.m., Eastern Time, at the offices of Kirkland & Ellis LLP located at 601 Lexington Avenue, New York, NY 10022, and via a virtual meeting, or at such other time, on such other date and at such other place to which the meeting may be postponed or adjourned (the “ Shareholder Meeting”). The Shareholder Meeting will be conducted via live webcast, but the physical location of the Shareholder Meeting will remain at the location specified above for the purposes of our amended and restated memorandum and articles of association (the “ Memorandum and Articles of Association”). If you wish to attend the Shareholder Meeting in