Structure Therapeutics (GPCR) CEO reports tax share withholding and large trust-held stake

Rhea-AI Filing Summary

Structure Therapeutics Inc. CEO Raymond C. Stevens reported mixed share movements related primarily to tax withholding and existing holdings. On March 3, 2026, 53,454 Ordinary Shares were disposed of at $20.99 per share, withheld by the company to satisfy income tax obligations tied to a restricted share unit vesting.

After this tax-withholding disposition, Stevens directly held 1,141,376 Ordinary Shares. Indirectly, 1,554,586 Ordinary Shares and 12,000 American Depositary Shares (ADSs) are held by the Stevens 2001 Revocable Trust, where Raymond Stevens and Vivian Urena-Stevens act as co-trustees.

The filing also notes an earlier non-cash acquisition on November 20, 2025, when Stevens was granted 824 ADSs at $0.0000 per ADS under the company’s Employee Share Purchase Plan, bringing that direct ADS position to 1,824 ADSs. Each ADS represents three Ordinary Shares and has no expiration date.

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).

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

1. Name and Address of Reporting Person^*

Stevens Raymond C

(Last) (First) (Middle)

C/O STRUCTURE THERAPEUTICS INC.

601 GATEWAY BLVD., SUITE 900

(Street)

SOUTH SAN FRANCISCO CA 94080

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Structure Therapeutics Inc. [ GPCR ]

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

3. Date of Earliest Transaction (Month/Day/Year)
03/03/2026

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)
			Code	V	Amount	(A) or (D)	Price
Ordinary Shares(1)	03/03/2026		F		53,454(2)	D	$20.99	1,141,376	D
Ordinary Shares(1)								1,554,586	I	See footnote(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 (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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
American Depositary Shares	(4)	11/20/2025		A(5)	V	824		(4)	(4)	Ordinary Shares(1)	2,472	$0	1,824	D
American Depositary Shares	(4)							(4)	(4)	Ordinary Shares(1)	12,000		4,000	I	See footnote(3)

Explanation of Responses:

1. The Ordinary Shares of the Issuer may be represented by American Depositary Shares ("ADSs"). Each ADS represents three Ordinary Shares of the Issuer.

2. Represents shares withheld by the Issuer to satisfy income tax obligations associated with the vesting of a restricted share unit award.

3. By Raymond Stevens and Vivian Urena-Stevens, as Co-Trustees of the Stevens 2001 Revocable Trust, dated March 28, 2001.

4. Each ADS is convertible at any time, at the holder's election, into three Ordinary Shares of the Issuer. The ADSs have no expiration date.

5. Voluntary reporting of the acquisition of 824 ADSs by the Reporting Person on November 20, 2025 pursuant to the Issuer's Employee Share Purchase Plan.

	/s/ Jun Yoon, Attorney-in-Fact	03/05/2026
	** 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.

FAQ

What did GPCR CEO Raymond C. Stevens report in this Form 4 filing?

Raymond C. Stevens reported a tax-related share disposition and updates to his holdings. The company withheld 53,454 Ordinary Shares to cover income taxes on a restricted share unit vesting, and the filing detailed his remaining direct and indirect Ordinary Share and ADS positions.

How many Structure Therapeutics (GPCR) shares were used for tax withholding?

The filing shows 53,454 Ordinary Shares were disposed of through withholding. These shares were retained by Structure Therapeutics to satisfy Stevens’ income tax obligations triggered by the vesting of a restricted share unit award rather than sold in an open-market transaction.

What are Raymond C. Stevens’ direct Ordinary Share holdings in GPCR after this transaction?

After the March 3, 2026 tax-withholding event, Stevens directly holds 1,141,376 Ordinary Shares of Structure Therapeutics. This figure reflects his remaining direct ownership position following the company’s withholding of 53,454 shares to cover his related income tax liabilities.

How are Raymond C. Stevens’ indirect GPCR holdings structured?

Indirectly, 1,554,586 Ordinary Shares and 12,000 ADSs are held by the Stevens 2001 Revocable Trust. Raymond Stevens and Vivian Urena-Stevens serve as co-trustees of this trust, which is listed in the filing as the indirect owner of those securities.

What does the Form 4 say about GPCR American Depositary Shares (ADSs)?

The filing states each ADS represents three Ordinary Shares of Structure Therapeutics and has no expiration date. It also reports indirect ownership of 12,000 ADSs via the Stevens 2001 Revocable Trust and 1,824 ADSs held directly after a prior plan-based acquisition.

What was the earlier acquisition of ADSs by Raymond C. Stevens in November 2025?

On November 20, 2025, Stevens acquired 824 ADSs at a stated price of $0.0000 per ADS. This award came through Structure Therapeutics’ Employee Share Purchase Plan and increased his directly held ADS position to a total of 1,824 ADSs at that time.