Metagenomi Therapeutics, Inc. (MGX) Insider Ownership

Historic Insider Ownership Trends

MGX's three largest insider shareholders as of June 12, 2026 are Healthcare Llc Bayer (TenPercentOwner, 4.05Mn shares), Brian C. Thomas (Chief Executive Officer, 2.51Mn shares), Sebastian Bernales (Director, 1.90Mn shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares (Direct) Shares (Indirect) Report Date
Healthcare Llc Bayer - 4,050,997 0 15 Feb, 2024
Holdings A/S Novo - 1,739,175 0 15 Feb, 2024
Luis Borges Chief Scientific Officer 69,316 0 03 Apr, 2024
Sarah B. Noonberg Chief Medical Officer 109,135 0 09 Jun, 2025
Pamela Wapnick Chief Financial Officer 211,375 0 03 Apr, 2026
Sebastian Bernales - 0 1,896,445 14 Feb, 2024
Simon Harnest - 122,664 0 03 Apr, 2024
Simren Delaney - 93,892 0 03 Apr, 2024
Jian Irish Chief Executive Officer 379,770 0 03 Apr, 2026
Brian C. Thomas Chief Executive Officer 2,510,960 0 08 Dec, 2025
Matthew Wein - 125,549 0 03 Apr, 2026

* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
01 Apr, 2026 Jian Irish Common Stock A 46,000 $0.00 379,770 D A
01 Apr, 2026 Matthew Wein Common Stock A 11,000 $0.00 125,549 D A
01 Apr, 2026 Pamela Wapnick Common Stock A 24,000 $0.00 211,375 D A
01 Apr, 2026 Matthew Wein Common Stock A 11,000 $0.00 125,549 D A
01 Apr, 2026 Pamela Wapnick Common Stock A 24,000 $0.00 211,375 D A
01 Apr, 2026 Pamela Wapnick Stock Option (Right to Buy) A 144,000 $0.00 144,000 D A
01 Apr, 2026 Matthew Wein Stock Option (Right to Buy) A 68,000 $0.00 68,000 D A
01 Apr, 2026 Matthew Wein Stock Option (Right to Buy) A 68,000 $0.00 68,000 D A
01 Apr, 2026 Pamela Wapnick Stock Option (Right to Buy) A 144,000 $0.00 144,000 D A
01 Apr, 2026 Jian Irish Stock Option (Right to Buy) A 276,000 $0.00 276,000 D A
05 Mar, 2026 Matthew Wein Common Stock D 482 $1.60 114,549 D S
05 Mar, 2026 Pamela Wapnick Common Stock D 1,581 $1.60 187,375 D S
05 Mar, 2026 Matthew Wein Common Stock D 482 $1.60 114,549 D S
05 Mar, 2026 Pamela Wapnick Common Stock D 1,581 $1.60 187,375 D S
05 Dec, 2025 Matthew Wein Common Stock D 199 $1.77 115,031 D S
05 Dec, 2025 Jian Irish Common Stock D 1,602 $1.77 563,839 D S
05 Dec, 2025 Pamela Wapnick Common Stock D 1,576 $1.77 188,956 D S
05 Dec, 2025 Brian C. Thomas Common Stock D 3,830 $1.77 2,510,960 D S
05 Dec, 2025 Brian C. Thomas Common Stock D 3,830 $1.77 2,510,960 D S
05 Dec, 2025 Matthew Wein Common Stock D 199 $1.77 115,031 D S