Sec Form 4/A Filing - ATWOOD BRIAN G @ CERO THERAPEUTICS HOLDINGS, INC. - 2024-02-14

FORM 4/A 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 ATWOOD BRIAN G 2. Issuer Name and Ticker or Trading Symbol CERO THERAPEUTICS HOLDINGS, INC. [ CERO] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) Chief Executive Officer (Last) (First) (Middle) CERO THERAPEUTICS HOLDINGS, INC., 201 HASKINS WAY, SUITE 230 3. Date of Earliest Transaction (MM/DD/YY) 02/14/2024 (Street) SOUTH SAN FRANCISCO, CA94080 4. If Amendment, Date Original Filed (MM/DD/YY) 02/16/2024 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 Common Stock 02/14/2024 J( 2 ) 100,527 A 100,527 I Atwood-Edminster Trust dtd 4-2-2000 ( 3 ) Common Stock 02/14/2024 J 148,208 A 248,735 I Atwood-Edminster Trust dtd 4-2-2000 ( 3 )

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 Series A Convertible Preferred Stock $ 10 02/14/2024 A( 4 ) 1,002 ( 4 ) ( 4 ) Common Stock 100,200 $ 1,000 1,002 I Atwood-Edminster Trust dtd 4-2-2000 ( 3 )

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other ATWOOD BRIAN G CERO THERAPEUTICS HOLDINGS, INC. 201 HASKINS WAY, SUITE 230 SOUTH SAN FRANCISCO, CA94080 X Chief Executive Officer Signatures /s/ Charles Carter, Attorney-in-Fact 02/21/2024 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Represents shares of Common Stock issued to the Atwood-Edminster Trust (as defined below) in connection with the Issuer's business combination consummated on February 14, 2024. ( 2 )Represents earnout shares, each of which consist of one share of the Issuer's Common Stock, subject to forfeiture if certain vesting conditions are not satisfied. The earnout shares vest as follows: (i) 33,045 shares if the volume weighted average price ("VWAP") of the Common Stock for at least 20 of any 30 consecutive trading days following February 14, 2024 equals or exceeds the lesser of (x) $12.50 or (y) 125% of the then applicable conversion price; (ii) 33,045 shares shall vest if the VWAP for at least 20 of any 30 consecutive trading days following February 14, 2024 equals or exceeds the lesser of (x) $15.00 or (y) 150% of the then applicable conversion price; (iii) 13,218 shares shall vest upon a change of control; and (iv) 28,601 shares shall vest upon the Issuer's submission of an IND application to the FDA. If the vesting conditions are not met prior to February 14, 2028, the earnout shares will be cancelled. ( 3 )The reporting person is the trustee of the Atwood-Edminster Trust dtd 4-2-2000 (the "Atwood-Edminster Trust") and has sole voting and disposition power with respect to the shares owned by the Atwood-Edminster Trust. ( 4 )On February 14, 2024, the Atwood-Edminster Trust acquired 1,002 shares of Series A Convertible Preferred Stock (the "Series A Preferred Stock") in a private placement by the Issuer pursuant to the terms of a Securities Purchase Agreement dated as of February 5, 2024. Each share of Series A Preferred Stock has a stated value of $1,000 and, at the option of the holder, is convertible into a number of shares of Common Stock determined by dividing (x) the value of the shares of Series A Preferred Stock, plus any additional amounts thereon as of such date of determination, by (y) the conversion price, which is currently $10.00, subject to adjustments (the "Conversion Price"). The Series A Preferred Stock has no expiration date.

Remarks: The Form 4 initially filed on February 16, 2024 (the "Initial Form 4") erroneously double-counted 125,000 shares of Common Stock acquired by the Reporting Person in the transaction reported by such Initial Form 4. The Amount of Securities Beneficially Owned Following Reported Transactions in column 5 of Table I has been updated.

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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