Sec Form 4 Filing - Coliseum Acquisition Sponsor LLC @ Coliseum Acquisition Corp. - 2021-08-10

FORM 4 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

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1. Name and Address of Reporting Person Coliseum Acquisition Sponsor LLC 2. Issuer Name and Ticker or Trading Symbol Coliseum Acquisition Corp. [ MITAU] 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) 80 PINE STREET, SUITE 3202 3. Date of Earliest Transaction (MM/DD/YY) 08/10/2021 (Street) NEW YORK, NY10005 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ 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 share ( 1 ) 08/10/2021 J( 2 ) 187,500 ( 1 ) ( 1 ) Class A ordinary share 187,500 $ 0 3,750,000 ( 3 ) D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Coliseum Acquisition Sponsor LLC 80 PINE STREET, SUITE 3202 NEW YORK, NY10005 X Signatures /s/ Daniel Haimovic (Managing Member) 08/12/2021 Signature of Reporting Person Date

Explanation of Responses:

( 1 )As described in the Issuer's registration statement on Form S-1 (File No. 333-254513) under the heading "Description of Securities--Founder Shares", the Class B ordinary shares will automatically convert into shares of Class A ordinary shares at the time of the Issuer's initial business combination, on a one-for-one basis, subject to certain adjustments described therein and have no expiration date. ( 2 )As contemplated in connection with the initial public offering of the Issuer, 187,500 Class B ordinary shares of the Issuer were forfeited by Coliseum Acquisition Sponsor LLC (the "Sponsor") to the Issuer for no consideration and cancelled because the underwriters of the Issuer's initial public offering did not exercise their over-allotment option as described in the Issuer's registration statement. ( 3 )Daniel Haimovic and Jason Stein, both Co-Chief Executive Officers and Directors of the Issuer, are the managing members of the Sponsor and have voting and investment discretion with respect to the securities held by the Sponsor. As such, each of Messrs. Haimovic and Stein may be deemed to share beneficial ownership of the Class B ordinary shares held directly by the Sponsor. Each such person disclaims any beneficial ownership of the reported shares other than to the extent of any pecuniary interest they may have therein, directly or indirectly.

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).

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