SEC FORM 4

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

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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^*

Darwin Global Management, Ltd.

(Last)

(First)

(Middle)

WHITLEY CHAMBERS

DON STREET

(Street)

ST. HELIER

JE2 4TR

(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)

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

3. Date of Earliest Transaction (Month/Day/Year)
06/27/2023

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

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

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

Rule 10b5-1(c) Transaction Indication

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

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)

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)
American Depository Shares ("ADSs")⁽¹⁾	$0	06/27/2023		P		5,384,063		⁽¹⁾	⁽¹⁾	Ordinary Shares	37,688,441	$13.93	16,688,636	I	See footnotes⁽²⁾⁽³⁾

1. Name and Address of Reporting Person^*

Darwin Global Management, Ltd.

(Last)

(First)

(Middle)

WHITLEY CHAMBERS

DON STREET

(Street)

ST. HELIER

JE2 4TR

(City)

(State)

(Zip)

1. Name and Address of Reporting Person^*

Darwin Global Master Fund, Ltd.

(Last)

(First)

(Middle)

C/O OGIER GLOBAL (CAYMAN) LIMITED

89 NEXUS WAY, CAMANA BAY

(Street)

GRAND CAYMAN

KY1-9009

(City)

(State)

(Zip)

1. Name and Address of Reporting Person^*

Trehan Abhishek

(Last)

(First)

(Middle)

WHITELEY CHAMBERS

DON STREET

(Street)

ST. HELIER

JE2 4TR

(City)

(State)

(Zip)

Explanation of Responses:

1. Each ADS represents 7 ordinary shares, par value $0.0001 per share ("Ordinary Shares").

2. Securities held for the accounts of certain investment funds and accounts for which Darwin Global Management, Ltd. ("Darwin Global") acts as investment manager, including Darwin Global Master Fund, Ltd. ("Master Fund"). The sole shareholder of Darwin Global is controlled by Dr. Abhishek Trehan ("Dr. Trehan").

3. For purposes of Section 16 of the Securities Exchange Act of 1934, each of Darwin Global, Master Fund and Dr. Trehan expressly disclaims neficial ownership of the securities reported herein except to the extent of his or its pecuniary interest therein, and this report shall not be deemed an admission that any of Darwin Global, Master Fund or Dr. Trehan is the beneficial owner of such securities for purposes of Section 16 or any other purpose.

	Darwin Global Management, Ltd. By: /s/ John Legge, Director and Chief Financial Officer	06/28/2023
	/s/ Abhishek Trehan	06/28/2023
	Darwin Global Master Fund, Ltd. By: Darwin Global Management, Ltd, its investment manager By: /s/ John Legge, Director and Chief Financial Officer	06/28/2023
	** 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.
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SEC Form 4 filed by Darwin Global Management, Ltd.