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person · Reporting owner

Thomas Brian C.

Disclosed activity across 1 company

Tapewire entity
72048
SEC CIK
0001996097

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
Metagenomi Therapeutics, Inc.MGX · Entity 7270DirectorDecember 05, 2025December 08, 2025

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

Metagenomi Therapeutics, Inc.

Report date December 05, 2025 · Filed December 08, 2025

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect2,510,960 Reported balance After 2025-12-05 transaction · row 1
1 source row

Row 1 · 2025-12-05 · Sale · Disposed 3,830 · Balance 2,510,960

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 granted to the Reporting Person on April 1, 2024, and does not represent a volitional trade by the Reporting Person.

Filing footnotes · ownership attribution and instrument terms

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 granted to the Reporting Person on April 1, 2024, and does not represent a volitional trade by the Reporting Person.

Transaction history

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
December 05, 2025 Filed Dec 8, 2025 18:56 UTC Metagenomi Therapeutics, Inc. MGX · Entity 7270 SaleCommon Stock 3,830 $1.77 $6,786.38
Disclosure

SEC source: 0001193125-25-310971 · ownership.xml · nonDerivative · entry 1

Thomas Brian C. · CIK 0001996097 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,510,960

F1 · kind: 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 granted to the Reporting Person on April 1, 2024, and does not represent a volitional trade by the Reporting Person.

Read SEC document
September 05, 2025 Filed Dec 2, 2025 00:34 UTC Metagenomi Therapeutics, Inc. MGX · Entity 7270 SaleCommon Stock 2,701 $1.81 $4,888.81
Disclosure

SEC source: 0001193125-25-304221 · ownership.xml · nonDerivative · entry 1

Thomas Brian C. · CIK 0001996097 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,514,790

F1 · kind: 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 granted to the reporting person on April 1, 2024, and does not represent a volitional trade by the Reporting Person.

Read SEC document
June 06, 2025 Filed Jun 9, 2025 22:50 UTC Metagenomi Therapeutics, Inc. MGX · Entity 7270 SaleCommon Stock 10,785 $1.75 $18,873.75
Disclosure

SEC source: 0000950170-25-083947 · ownership.xml · nonDerivative · entry 1

Thomas Brian C. · CIK 0001996097 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,517,491

F1 · kind: 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 granted to the reporting person on April 1, 2024, and does not represent a volitional trade by the reporting person.

Read SEC document
April 01, 2025 Filed Apr 3, 2025 15:58 UTC Metagenomi Therapeutics, Inc. MGX · Entity 7270 GrantStock Option (Right to Buy) · Derivative 196,000 $0.00 Strike: $1.32 $0.00
Disclosure

SEC source: 0000950170-25-050102 · ownership.xml · derivative · entry 2

Thomas Brian C. · CIK 0001996097 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 196,000

Underlying: Common Stock · 196,000 shares

Expires 2035-03-31

F2 · derivative.exercise_date: 25% of the shares subject to this option shall vest and become exercisable on April 1, 2026, with the remainder vesting in 36 equal monthly installments thereafter, subject to the Reporting Person's continued service with the Issuer on each such vesting date.

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April 01, 2025 Filed Apr 3, 2025 15:58 UTC Metagenomi Therapeutics, Inc. MGX · Entity 7270 GrantCommon Stock 32,000 $0.00 $0.00
Disclosure

SEC source: 0000950170-25-050102 · ownership.xml · nonDerivative · entry 1

Thomas Brian C. · CIK 0001996097 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,528,276

F1 · shares: These shares represent restricted stock units ("RSUs"). 25% of the RSUs shall vest on June 5, 2026, with the remainder vesting in 12 equal quarterly installments thereafter, subject to the Reporting Person's continued service with the Issuer on each such vesting date.

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April 01, 2024 Filed Apr 4, 2024 00:00 UTC Metagenomi Therapeutics, Inc. MGX · Entity 7270 GrantStock Option (Right to Buy) · Derivative 500,323 $0.00 Strike: $10.82 $0.00
Disclosure

SEC source: 0000950170-24-041449 · ownership.xml · derivative · entry 2

Thomas Brian C. · CIK 0001996097 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 500,323

Underlying: Common Stock · 500,323 shares

Expires 2034-03-31

F2 · derivative.exercise_date: 25% of the shares subject to this option shall vest and become exercisable on April 1, 2025, with the remainder vesting in 36 equal monthly installments thereafter, subject to the Reporting Person's continued service with the Issuer on each such vesting date.

Read SEC document
April 01, 2024 Filed Apr 4, 2024 00:00 UTC Metagenomi Therapeutics, Inc. MGX · Entity 7270 GrantCommon Stock 118,992 $0.00 $0.00
Disclosure

SEC source: 0000950170-24-041449 · ownership.xml · nonDerivative · entry 1

Thomas Brian C. · CIK 0001996097 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,496,276

F1 · shares: These shares represent restricted stock units ("RSUs"). 25% of the RSUs shall vest on June 5, 2025, with the remainder vesting in 12 equal quarterly installments thereafter, subject to the Reporting Person's continued service with the Issuer on each such vesting date.

Read SEC document

Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.