METAGENOMI INC MGX
COM · Common Stock · CUSIP 59102M104
- SectorHealth care
- IndustryBiological Products, (No Diagnostic Substances)
- HeadquartersEmeryville, CA
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once. Holder counts are more reliable. Implied quarter-end price ≈ $2.36.
Trends to Q3 2025
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q1 2024 | 51 |
| Q2 2024 | 55 |
| Q3 2024 | 68 |
| Q4 2024 | 78 |
| Q1 2025 | 80 |
| Q2 2025 | 70 |
| Q3 2025 | 58 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q2 2024 | 29 | 25 |
| Q3 2024 | 42 | 19 |
| Q4 2024 | 51 | 26 |
| Q1 2025 | 38 | 27 |
| Q2 2025 | 36 | 46 |
| Q3 2025 | 21 | 40 |
Biggest buyers
| TWO SIGMA INVESTMENTS, LP | Added | +193.6k |
| JPMORGAN CHASE & CO | Added | +123.6k |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | Added | +97.1k |
| Walleye Capital LLC | New | +71.3k |
| Man Group plc | New | +52.9k |
| TWO SIGMA ADVISERS, LP | New | +50.4k |
| RENAISSANCE TECHNOLOGIES LLC | Added | +48.0k |
| Dynamic Technology Lab Private Ltd | New | +27.2k |
| BANK OF AMERICA CORP /DE/ | Added | +15.7k |
| XTX Topco Ltd | New | +15.2k |
Biggest sellers
| PURA VIDA INVESTMENTS, LLC | Reduced | -687.7k |
| TANG CAPITAL MANAGEMENT LLC | Reduced | -172.0k |
| AQR CAPITAL MANAGEMENT LLC | Sold out | -129.1k |
| GOLDMAN SACHS GROUP INC | Sold out | -108.6k |
| UBS Group AG | Reduced | -95.4k |
| BlackRock, Inc. | Reduced | -72.9k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Sold out | -72.6k |
| MILLENNIUM MANAGEMENT LLC | Reduced | -72.3k |
| JANE STREET GROUP, LLC | Reduced | -60.7k |
| CITADEL ADVISORS LLC | Sold out | -60.6k |
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| Thomas Brian C. 13G · exempt (held before listing) new · filed 2026-09-10 | 7.3% |
Insider purchases and sales in Q3 2025
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q4 2023 | 0 | — | 0 | — | — |
| Q1 2024 | 0 | — | 0 | — | — |
| Q2 2024 | 0 | — | 0 | — | — |
| Q3 2024 | 0 | — | 1 | $18.0k | — |
| Q4 2024 | 0 | — | 1 | $2.9k | — |
| Q1 2025 | 0 | — | 2 | $5.1k | — |
| Q2 2025 | 0 | — | 5 | $42.3k | — |
| Q3 2025 | 0 | — | 4 | $11.0k | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2025-09-05 | Thomas Brian C. Director | Sold | $4.9k2.7k shares |
| 2025-09-05 | Irish Jian Chief Executive Officer, director | Sold | $2.9k1.6k shares |
| 2025-09-05 | Wapnick Pamela Chief Financial Officer | Sold | $2.9k1.6k shares |
| 2025-09-05 | Wein Matthew Officer | Sold | $360199 shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q3 2025
| Manager | Shares | Change |
|---|---|---|
| VANGUARD GROUP INC 0.00% of their portfolio | 1.2m $2.9m | Reduced -16.1k |
| Sozo Ventures GP II, L.P. 100.00% of their portfolio | 581.6k $1.3m | Unchanged |
| Catalio Capital Management, LP 0.23% of their portfolio | 529.0k $1.3m | Unchanged |
| Peapod Lane Capital LLC 1.09% of their portfolio | 513.8k $1.2m | Added +5.7k |
| MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio | 310.7k $736.3k | Reduced -72.3k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 291.9k $692.1k | Reduced -1.6k |
| PURA VIDA INVESTMENTS, LLC 3.82% of their portfolio | 264.4k $626.6k | Reduced -687.7k |
| MORGAN STANLEY 0.00% of their portfolio | 241.3k $572.0k | Reduced -8.9k |
| BlackRock, Inc. 0.00% of their portfolio | 223.5k $529.6k | Reduced -72.9k |
| TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio | 207.5k $491.8k | Added +193.6k |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC 0.01% of their portfolio | 195.8k $464.0k | Added +97.1k |
| RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio | 167.0k $395.8k | Added +48.0k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 125.1k $296.5k | Added +123.6k |
| STATE STREET CORP 0.00% of their portfolio | 121.5k $288.0k | Reduced -9.3k |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 102.0k $241.8k | Added +3.6k |
| JANE STREET GROUP, LLC 0.00% of their portfolio | 98.3k $232.9k | Reduced -60.7k |
| MARSHALL WACE, LLP 0.00% of their portfolio | 91.3k $216.4k | Reduced -59.0k |
| Resolute Advisors LLC 0.05% of their portfolio | 89.9k $213.2k | Unchanged |
| Walleye Capital LLC 0.00% of their portfolio | 71.3k $168.9k | New |
| RBF Capital, LLC 0.01% of their portfolio | 70.8k $167.7k | Reduced -9.2k |
| BBR PARTNERS, LLC 0.01% of their portfolio | 53.4k $126.6k | Unchanged |
| Man Group plc 0.00% of their portfolio | 52.9k $125.3k | New |
| TWO SIGMA ADVISERS, LP 0.00% of their portfolio | 50.4k $119.4k | New |
| NORTHERN TRUST CORP 0.00% of their portfolio | 40.0k $94.7k | Reduced -21.9k |
| Fortitude Advisory Group L.L.C. 0.05% of their portfolio | 38.7k $91.8k | Added +250 |
| JACOBS LEVY EQUITY MANAGEMENT, INC 0.00% of their portfolio | 34.2k $81.0k | Unchanged |
| TANG CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 28.0k $66.4k | Reduced -172.0k |
| Dynamic Technology Lab Private Ltd 0.01% of their portfolio | 27.2k $64.0k | New |
| UBS Group AG 0.00% of their portfolio | 23.5k $55.7k | Reduced -95.4k |
| Vanguard Personalized Indexing Management, LLC 0.00% of their portfolio | 21.5k $51.0k | Added +7 |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 18.8k $44.5k | Added +15.7k |
| XTX Topco Ltd 0.00% of their portfolio | 15.2k $36.1k | New |
| BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio | 15.2k $36.0k | Added +14.4k |
| Marex Group Ltd 0.00% of their portfolio | 15.0k $34.5k | Unchanged |
| Green Alpha Advisors, LLC 0.03% of their portfolio | 14.3k $33.8k | Reduced -4.2k |
| HRT FINANCIAL LP 0.00% of their portfolio | 14.1k $33.0k | Reduced -44.9k |
| TWO SIGMA SECURITIES, LLC 0.00% of their portfolio | 12.2k $28.9k | New |
| FMR LLC 0.00% of their portfolio | 10.2k $24.2k | Added +369 |
| Cubist Systematic Strategies, LLC 0.00% of their portfolio | 7.5k $17.7k | Added +4.3k |
| Russell Investments Group, Ltd. 0.00% of their portfolio | 7.1k $16.9k | Unchanged |
| MEEDER ASSET MANAGEMENT INC 0.00% of their portfolio | 5.5k $13.0k | Unchanged |
| Point72 Asia (Singapore) Pte. Ltd. 0.00% of their portfolio | 4.9k $11.7k | Reduced -5.4k |
| US BANCORP \DE\ 0.00% of their portfolio | 4.5k $10.7k | Unchanged |
| CITIGROUP INC 0.00% of their portfolio | 3.3k $7.9k | Reduced -2.1k |
| OSAIC HOLDINGS, INC. 0.00% of their portfolio | 3.1k $6.3k | Reduced -44 |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 615 $1.0k | New |
| Physician Wealth Advisors, Inc. 0.00% of their portfolio | 610 $1.4k | Unchanged |
| MassMutual Private Wealth & Trust, FSB 0.00% of their portfolio | 593 $1.4k | Unchanged |
| PRINCIPAL SECURITIES, INC. 0.00% of their portfolio | 544 $1.3k | Reduced -1.4k |
| NISA INVESTMENT ADVISORS, LLC 0.00% of their portfolio | 511 $1.2k | Reduced -117 |
| JONES FINANCIAL COMPANIES LLLP 0.00% of their portfolio | 500 $1.1k | Unchanged |
| Rialto Wealth Management, LLC 0.00% of their portfolio | 305 $723 | Unchanged |
| Point72 (DIFC) Ltd 0.00% of their portfolio | 134 $318 | Unchanged |
| Larson Financial Group LLC 0.00% of their portfolio | 50 $119 | Reduced -76 |
| CWM, LLC 0.00% of their portfolio | 33 $0 | Reduced -1.6k |
| Arax Advisory Partners 0.00% of their portfolio | 30 $71 | New |
| Optiver Holding B.V. 0.00% of their portfolio | 18 $43 | New |
| BARCLAYS PLC 0.00% of their portfolio | 3 $7 | Unchanged |