Metagenomi Therapeutics MGX Insider Ownership

NASDAQ MGX
$1.15 -0.01 (-0.86%)
At close: Sep 9, 2026 · 4:00 PM EDT

Insider Holdings by Owner

10.23Mn Shares

Insider Ownership Statistics

as of 30 Sep, 2026
Insider Ownership
10.85%
0% pp QoQ
Shares Held by Insiders
4.05Mn
filed for Sep 2026
0.00% QoQ
Shares Outstanding
37.35Mn
37,349,449 shares
Direct Holdings
4.05Mn
Indirect: 0
Net Shares Traded (QoQ)
0
no net change in Sep 2026
Insiders Holding Shares
9
with Form 4 holdings on file

Shares Owned by Insiders

Shares held % of outstanding
Latest
Average ownership
Peak ownership

Shares Purchased/Sold by Insiders

Bought Sold
Latest quarter
Net over range
Buying quarters

Insider Ownership Summary

Quarter ending 30 Sep, 2026

Metagenomi Therapeutics's top three insider shareholders as of September 09, 2026 are Healthcare Llc Bayer (TenPercentOwner, 4.05Mn shares), Healthcare Llc Bayer (TenPercentOwner, 4.05Mn shares), Healthcare Llc Bayer (TenPercentOwner, 4.05Mn shares).

Form 4 Holdings

Insiders Holding MGX

Insiders 9
Shares held 10.23Mn
Of outstanding 27.38%
# Insider Position Direct Indirect Total Share of Insiders Last Filed
1 Healthcare Llc Bayer TenPercentOwner 4,050,997 0 4,050,997 39.6% 15 Feb, 2024
2 Sebastian Bernales Director 769,845 1,896,445 2,666,290 26.1% 14 Feb, 2024
3 Brian C. Thomas Chief Executive Officer 2,510,960 0 2,510,960 24.6% 08 Dec, 2025
4 Jian Irish Chief Executive Officer 377,533 0 377,533 3.7% 10 Jun, 2026
5 Pamela Wapnick Chief Financial Officer 208,491 0 208,491 2.0% 10 Jun, 2026
6 Matthew Wein Officer 126,491 0 126,491 1.2% 10 Jun, 2026
7 Simon Harnest Officer 122,664 0 122,664 1.2% 03 Apr, 2024
8 Simren Delaney Officer 93,892 0 93,892 0.9% 03 Apr, 2024
9 Luis Borges Chief Scientific Officer 69,316 0 69,316 0.7% 03 Apr, 2024

Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.

Form 4 Filings

151 Insider Transactions

Source SEC Form 4
Latest quarter Sep 2026
Download Data
Date Insider Position Transaction Shares Price Value Shares Held After Ownership
09 Jun, 2026 Juergen Eckhardt Director Acquired A 21,000 $0.00 $0 21,000 Direct
09 Jun, 2026 Eric Bjerkholt Director Acquired A 21,000 $0.00 $0 21,000 Direct
09 Jun, 2026 Laurence Reid Director Acquired A 17,400 $0.00 $0 17,400 Direct
09 Jun, 2026 Willard H Dere Director Acquired A 21,000 $0.00 $0 21,000 Direct
05 Jun, 2026 Jian Irish Director, Officer Disposed S 3,737 $1.30 $4.85K 377,533 Direct
05 Jun, 2026 Pamela Wapnick Chief Financial Officer Disposed S 2,884 $1.30 $3.75K 208,491 Direct
05 Jun, 2026 Matthew Wein Officer Disposed S 558 $1.30 $725 126,491 Direct
01 Apr, 2026 Pamela Wapnick Chief Financial Officer Acquired A 24,000 $0.00 $0 211,375 Direct
01 Apr, 2026 Matthew Wein Officer Acquired A 11,000 $0.00 $0 125,549 Direct
01 Apr, 2026 Jian Irish Director, Officer Acquired A 46,000 $0.00 $0 379,770 Direct
01 Apr, 2026 Pamela Wapnick Chief Financial Officer Acquired A 144,000 $0.00 $0 144,000 Direct
01 Apr, 2026 Matthew Wein Officer Acquired A 68,000 $0.00 $0 68,000 Direct
01 Apr, 2026 Jian Irish Director, Officer Acquired A 276,000 $0.00 $0 276,000 Direct
05 Mar, 2026 Matthew Wein Officer Disposed S 482 $1.60 $771 114,549 Direct
05 Mar, 2026 Pamela Wapnick Chief Financial Officer Disposed S 1,581 $1.60 $2.53K 187,375 Direct
05 Dec, 2025 Brian C. Thomas Director Disposed S 3,830 $1.77 $6.79K 2,510,960 Direct
05 Dec, 2025 Brian C. Thomas Director Disposed S 3,830 $1.77 $6.79K 2,510,960 Direct
05 Dec, 2025 Brian C. Thomas Director Disposed S 3,830 $1.77 $6.79K 2,510,960 Direct
05 Dec, 2025 Matthew Wein Officer Disposed S 199 $1.77 $353 115,031 Direct
05 Dec, 2025 Jian Irish Chief Executive Officer Disposed S 1,602 $1.77 $2.84K 563,839 Direct