SEC FORM 4

SEC Form 4

FORM 4

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
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

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

1. Name and Address of Reporting Person^*

O'Connor Daniel J.

(Last)

(First)

(Middle)

C/O AMBRX BIOPHARMA, INC.

10975 N TORREY PINES ROAD

(Street)

LA JOLLA

92037

(City)

(State)

(Zip)

2. Issuer Name and Ticker or Trading Symbol
Ambrx Biopharma, Inc. [ AMAM ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director	10% Owner
X	Officer (give title below)	Other (specify below)
	President and CEO

3. Date of Earliest Transaction (Month/Day/Year)
03/07/2024

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	03/07/2024		D		48,202	D	⁽¹⁾⁽²⁾	0	D

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 (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	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 (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (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: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Restricted Stock Units	⁽³⁾	03/07/2024		D			294,643	⁽⁴⁾	⁽⁴⁾	Common Stock	294,643	⁽⁵⁾	0	D
Restricted Stock Units	⁽³⁾	03/07/2024		D			750,000	⁽⁶⁾	⁽⁶⁾	Common Stock	750,000	⁽⁵⁾	0	D
Option to Purchase Common Stock	$0.91	03/07/2024		D			772,857	⁽⁷⁾	10/31/2032	Common Stock	772,857	⁽⁸⁾	0	D
Option to Purchase Common Stock	$16.66	03/07/2024		D			173,785	⁽⁹⁾	07/05/2033	Common Stock	173,785	⁽⁸⁾	0	D

Explanation of Responses:

1. This Form 4 reports securities disposed of pursuant to the terms of the Agreement and Plan of Merger (the "Merger Agreement"), dated as of January 5, 2024, among the Issuer, Johnson & Johnson ("J&J"), and Charm Merger Sub, Inc., a wholly owned subsidiary of J&J ("Merger Sub"), pursuant to which Merger Sub merged with and into the Issuer (the "Merger"), effective as of March 7, 2024 (such date and time of such Merger, the "Effective Time"), with the Issuer surviving the Merger as a wholly owned subsidiary of J&J.

2. Pursuant to the Merger Agreement, at the Effective Time, each outstanding share of common stock of the Issuer ("Company Common Stock") reported in this Form 4 was converted into the right to receive an amount equal to $28.00 per share in cash (the "Merger Consideration"), without interest and less any applicable withholding taxes.

3. Each of these restricted stock units ("RSUs") represents a contingent right to receive one share of the Company Common Stock.

4. These RSUs vest as follows: (i) one-third (1/3) of the RSUs will vest on the 12-month anniversary of April 26, 2023 (the "Grant Date"), (ii) one-third (1/3) of the RSUs will vest on the 24-month anniversary of the Grant Date, and (iii) one-third (1/3) of the RSUs will vest on the 36-month anniversary of the Grant Date.

5. Pursuant to the Merger Agreement, at the Effective Time, each of these RSUs that was outstanding as of immediately prior to the Effective Time was cancelled and the Reporting Person was entitled to receive the Merger Consideration, without interest and less any applicable withholding taxes, in respect of each such RSU.

6. These RSUs vest as follows: (i) one-sixth (1/6) of the RSUs will vest on the six (6)-month anniversary of the grant date of December 11, 2023, and (ii) one-twelfth (1/12) of the RSUs will vest on a quarterly basis thereafter.

7. The Company Common Stock subject to the options to purchase shares of Company Common Stock (each, a "Company Option") vest as follows: (i) twenty-five (25) percent of the Company Common Stock vested on November 1, 2023, and (ii) the remainder vests in thirty-six equal monthly installments following such date.

8. Pursuant to the Merger Agreement, at the Effective Time, each Company Option that was outstanding and unexercised as of immediately prior to the Effective Time, whether vested or unvested, with a per share exercise price ("Per Share Exercise Price") that was less than the Merger Consideration, was cancelled and converted into the right to receive an amount in cash (without interest and less any applicable withholding taxes) equal to the product of (i) the aggregate number of shares of Company Common Stock underlying such Company Option immediately prior to the Effective Time, and (ii) the excess of (A) the Merger Consideration over (B) the Per Share Exercise Price of such Company Option. Each Company Option that had a Per Share Exercise Price that was equal to or exceeded the amount of the Merger Consideration at the Effective Time was cancelled for no consideration.

9. The Company Common Stock subject to the Company Options vest as follows: (i) 1/6 of the Company Common Stock vested on January 5, 2024, and the remainder vests in ten (10) equal quarterly installments following such date.

	/s/ Sonja Nelson, Attorney-in-Fact for Daniel J. O'Connor	03/07/2024
	** Signature of Reporting Person	Date
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.