[Form 4] Maze Therapeutics, Inc. Insider Trading Activity

Rhea-AI Filing Summary

Courtney Phillips, General Counsel and Corporate Secretary of Maze Therapeutics, acquired 22,000 restricted stock units (RSUs) on 09/22/2025. Each RSU converts to one share of common stock upon settlement, and the award shows 22,000 shares beneficially owned after the grant at a reported price of $0. The RSUs vest 50% on 09/01/2026 and 50% on 09/01/2027, contingent on continued service, and the units do not expire; they vest or are cancelled prior to vesting dates.

Insights

Financial Analyst

TL;DR: Officer received 22,000 RSUs, providing equity compensation tied to future service-based vesting.

The grant of 22,000 RSUs to an officer is a routine equity-based compensation event that increases the reporting person’s potential future stake in common stock by 22,000 shares if fully vested. The award vests in two equal installments over two years and is reported at $0, indicating no cash outlay by the officer. For investors, this is a non-cash compensation move that aligns management with shareholder ownership without immediate dilution, as conversion occurs on settlement dates.

Corporate Governance Expert

TL;DR: Two-year service-vesting RSU award to a named officer, documented under Section 16 reporting rules.

The filing shows compliance with Section 16 reporting for an officer-level equity award. Vesting is clearly defined (50% on 09/01/2026 and 50% on 09/01/2027) and the instrument carries no expiration; it either vests or is cancelled. The clear vesting schedule and direct ownership reporting meet disclosure norms for insider compensation. No amendment or additional conditions beyond service-based vesting are disclosed in this 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

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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^*

Courtney Phillips

(Last) (First) (Middle)

C/O MAZE THERAPEUTICS, INC.

171 OYSTER POINT BOULEVARD, SUITE 300

(Street)

SOUTH SAN FRANCISCO CA 94080

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Maze Therapeutics, Inc. [ MAZE ]

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	GC and Corp. Secretary

3. Date of Earliest Transaction (Month/Day/Year)
09/22/2025

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

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
Restricted Stock Units	(1)	09/22/2025		A		22,000		(2)	(3)	Common Stock	22,000	$0	22,000	D

Explanation of Responses:

1. Each restricted stock unit represents a contingent right to receive one share of the Issuer's Common Stock upon settlement.

2. The award shall vest as to 1/2 of the total award on September 1, 2026 and September 1, 2027, subject to the reporting person's continued service to the Issuer on each vesting date.

3. These restricted stock units do not expire; they either vest or are cancelled prior to the vesting date.

	/s/ Courtney Phillips	09/24/2025
	** 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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