Sec Form 3 Filing - Constellation Sponsor LP @ Constellation Acquisition Corp I - 2023-01-30

FORM 3 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL OMB Number: 3235-0287 Expires: November 30, 2011 Estimated average burden hours per response... 0.5

1. Name and Address of Reporting Person Constellation Sponsor LP 2. Issuer Name and Ticker or Trading Symbol Constellation Acquisition Corp I [ CSTA] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director X __ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) C/O CONSTELLATION ACQUISITION CORP. I, 200 PARK AVENUE, 32ND FLOOR 3. Date of Earliest Transaction (MM/DD/YY) 01/30/2023 (Street) NEW YORK, NY10166 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) _____ Form filed by One Reporting Person __ X __ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares Class B ordinary shares ( 1 ) ( 1 ) ( 1 ) Class A ordinary shares 7,633,750 ( 1 ) ( 3 ) D Private Placement Warrants ( 2 ) ( 2 ) ( 2 ) Class A ordinary shares 5,466,667 ( 2 ) ( 3 ) D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Constellation Sponsor LP C/O CONSTELLATION ACQUISITION CORP. I 200 PARK AVENUE, 32ND FLOOR NEW YORK, NY10166 X Antarctica Endurance Manager, LLC 200 PARK AVENUE, 32ND FLOOR NEW YORK, NY10166 X Signatures Constellation Partner LP, by Antarctica Endurance Manager, LLC, its General Partner, by Chandra Patel, Manager /s/ Chandra Patel 02/06/2023 Signature of Reporting Person Date Antarctica Endurance Manager, LLC, by Chandra Patel, Manager /s/ Chandra Patel 02/06/2023 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Each Class B ordinary share ("Class B Shares") will automatically convert into Class A ordinary shares of the Issuer ("Class A Shares") at a ratio of no less than one-to-one on the first business day following the consummation of the Issuer's initial business combination, or earlier at the option of the holder thereof, with the actual conversion rate as described in the section entitled "Description of Securities" in the Issuer's Registration Statement on Form S-1 (File No. 333-251974) filed with the Securities and Exchange Commission on January 22, 2021 (the "Registration Statement"). The Class B Shares have no expiration date. ( 2 )Each Private Placement Warrant is exercisable to purchase one Class A Share of the Issuer at an exercise price of $11.50 per share. As described in the Registration Statement, the Private Placement Warrants are identical to the warrants sold in connection with the Issuer's initial public offering, except that the Private Placement Warrants, (i) will not be redeemable by the Issuer, except as described in the Registration Statement, (ii) may not (including the Class A Shares issuable upon exercise of such warrants), subject to certain limited exceptions, be transferred, assigned or sold by until 30 days after the completion of the Issuer's initial business combination, (iii) may be exercised by the holders on a cashless basis and (iv) will be entitled to registration rights. ( 3 )Antarctica Endurance Manager, LLC, is the general partner of Constellation Sponsor LP. Each Reporting Person disclaims beneficial ownership of the reported securities except to the extent of such person's pecuniary interest therein, and the filing of this Form 3 shall not be deemed an admission by any of the foregoing of beneficial ownership of such shares for the purposes of Section 16 or for any other purpose.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.