Third Rock Ventures IV, L.P. - 03 Feb 2025 Form 4 Insider Report for Maze Therapeutics, Inc. (MAZE)

Role: 10%+ Owner
Signature: /s/ Kevin Gillis, Chief Operating Officer of TRV GP IV, LLC, general partner of Third Rock Ventures GP IV, L.P., general partner of Third Rock Ventures IV, L.P.
Issuer symbol: MAZE
Transactions as of: 03 Feb 2025
Net transactions value: $0
Form type: 4
Filing time: 04 Feb 2025, 17:31:08 UTC
Previous filing: 30 Jan 2025
Next filing: 21 Aug 2025
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	MAZE	Common Stock	Conversion of derivative security	$0	+5,762,788	+1852%	$0.000000	6,073,958	03 Feb 2025	Direct	F1, F2, F4
transaction	MAZE	Common Stock	Conversion of derivative security	$0	+950,800		$0.000000	950,800	03 Feb 2025	See Footnotes	F1, F3, F4

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	MAZE	Series A Preferred Stock	Conversion of derivative security	$0	-45,833,334	-100%	$0.000000	0	03 Feb 2025	Common Stock	4,754,002		Direct	F1, F2, F4
transaction	MAZE	Series D-1 Preferred Stock	Conversion of derivative security	$0	-9,725,709	-100%	$0.000000	0	03 Feb 2025	Common Stock	1,008,786		Direct	F1, F2, F4
transaction	MAZE	Series A Preferred Stock	Conversion of derivative security	$0	-9,166,666	-100%	$0.000000	0	03 Feb 2025	Common Stock	950,800		See Footnotes	F1, F3, F4

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Upon the closing of the Issuer's initial public offering, each share of Series A Preferred Stock and Series D-1 Preferred Stock (collectively, the "Preferred Stock") automatically converted into Common Stock on a one-for-0.1037 basis without payment of consideration. The Preferred Stock had no expiration date.
F2	The shares are held directly by Third Rock Ventures IV, L.P. ("TRV IV"). The general partner of TRV IV is Third Rock Ventures GP IV, L.P. ("TRV GP IV"). The general partner of TRV GP IV is TRV GP IV, LLC ("TRV GP IV LLC"). Each of TRV GP IV, and TRV GP IV LLC, disclaims beneficial ownership of these shares except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that it is the beneficial owner of such shares.
F3	The shares are held directly by Third Rock Ventures V, L.P. ("TRV V"). The general partner of TRV V is Third Rock Ventures GP V, L.P. ("TRV GP V"). The general partner of TRV GP V is TRV GP V, LLC ("TRV GP V LLC"). Each of TRV GP V, and TRV GP V LLC, disclaims beneficial ownership of these shares except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that it is the beneficial owner of such shares.
F4	Each of Reporting Persons disclaims the existence of a Section 13(d) "group" as between the TRV IV related parties and the TRV V related parties and this report shall not be deemed an admission that any of such parties is or may be part of such a group with any of the other parties.