Matthew L. Wein - 05 Sep 2025 Form 4 Insider Report for Metagenomi, Inc. (MGX)

Role: Title: General Counsel, Compliance Officer and Corporate Secretary
Signature: /s/ Matthew L. Wein
Issuer symbol: MGX
Transactions as of: 05 Sep 2025
Net transactions value: +$153,240
Form type: 4
Filing time: 01 Dec 2025, 18:37:12 UTC
Previous filing: 09 Jun 2025
Next filing: 08 Dec 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Wein Matthew	Title: General Counsel, Compliance Officer and Corporate Secretary	C/O METAGENOMI, INC., 5959 HORTON STREET, 7TH FLOOR, EMERYVILLE	/s/ Matthew L. Wein	01 Dec 2025	0002009713

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	MGX	Common Stock	Sale	$360	-199	-1%	$1.81	19,230	05 Sep 2025	Direct	F1, F2
transaction	MGX	Common Stock	Award	$153,600	+96,000	+499%	$1.60	115,230	01 Dec 2025	Direct	F3

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

Explanation of Responses:

Id	Content
F1	These shares of common stock were automatically sold for the purpose of satisfying the Reporting Person's tax withholding obligations upon the vesting of certain restricted stock units ("RSUs") granted to the Reporting Person on April 1, 2024, and does not represent a volitional trade by the Reporting Person.
F2	Includes 1,359 shares acquired under the Company's employee stock purchase plan ("ESPP") on May 30, 2025 and 1,377 shares acquired under the Company's ESPP on November 28, 2025.
F3	These shares represent RSUs. 50% of the RSUs shall vest on December 5, 2026, with the remainder vesting on December 5, 2027, subject to the Reporting Person's continued service with the Issuer on each such vesting date.

Remarks:

Title: General Counsel, Compliance Officer and Corporate Secretary