Metagenomi TherapeuticsMGX
13F holders, Q4 2025 (December 31)At the end of Q4 2025, 56 institutions reported holding Metagenomi Therapeutics Inc. (MGX) in their 13F filings, down 2 from Q3 2025. 11 opened new positions and 9 sold out. The largest holders were Vanguard Group Inc. ($2.1M), Renaissance Technologies ($1.0M) and Catalio Capital Management, LP ($857K). 4 famous investors held it, including Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio), Israel Englander (0.0% of Millennium Management's portfolio) and Ken Griffin (0.0% of Citadel Advisors's portfolio).
- Company
- Metagenomi Therapeutics Inc.
- CUSIP
- 59102M104
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q3 2025 → Q4 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 11 | $638K |
| Exits | 9 | $396K |
All 13F filers, Q3 2025 → Q4 2025: 1,929,916 shares bought and 571,763 shares sold, net +1,358,153 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 56 holders
| Vanguard Group Inc. | 0.00% | Add +2.3% | 1,270,246 | $2.1M |
| Renaissance Technologies | 0.00% | Add +276.3% | 628,400 | $1.0M |
| Catalio Capital Management, LP | 0.15% | No change | 528,993 | $857K |
| Peapod Lane Capital LLC | 0.69% | Reduce -3.1% | 497,653 | $806K |
| Two Sigma Investments, LP | 0.00% | Add +112.7% | 441,388 | $715K |
| Jane Street Group, LLC | 0.00% | Add +341.6% | 433,859 | $703K |
| Bridgeway Capital Management, LLC | 0.01% | Add +102.2% | 395,800 | $641K |
| Geode Capital Management, LLC | 0.00% | Add +4.8% | 305,908 | $496K |
| Pura Vida Investments, LLC | 1.60% | No change | 264,391 | $428K |
| Millennium Management | 0.00% | Reduce -24.3% | 235,185 | $381K |
| BlackRock, Inc. | 0.00% | Add +0.3% | 224,141 | $363K |
| Two Sigma Advisers, LP | 0.00% | Add +299.4% | 201,300 | $326K |
| Citadel Advisors | 0.00% | New | 178,172 | $289K |
| State Street Corp. | 0.00% | Reduce -0.9% | 120,427 | $195K |
| Wells Fargo & Company | 0.00% | Add +16.1% | 118,410 | $192K |
| Resolute Advisors LLC | 0.05% | No change | 89,944 | $146K |
| Marshall Wace, LLP | 0.00% | Reduce -13.3% | 79,136 | $128K |
| Northern Trust Corp. | 0.00% | Add +88.0% | 75,172 | $122K |
| XTX Topco Ltd | 0.00% | Add +353.4% | 68,994 | $112K |
| Acadian Asset Management LLC | 0.00% | New | 64,875 | $105K |
| RBF Capital, LLC | 0.00% | Reduce -9.6% | 64,021 | $104K |
| Morgan Stanley | 0.00% | Reduce -75.3% | 59,682 | $97K |
| Man Group plc | 0.00% | Add +6.8% | 56,497 | $92K |
| BBR Partners, LLC | 0.00% | No change | 53,403 | $87K |
| Fortitude Advisory Group L.L.C. | 0.03% | No change | 38,740 | $63K |
| Quadrature Capital Ltd | 0.00% | New | 33,917 | $55K |
| Panagora Asset Management Inc. | 0.00% | New | 32,580 | $53K |
| Point72 Asset Management | 0.00% | New | 26,589 | $43K |
| UBS Group AG | 0.00% | Add +6.9% | 25,099 | $41K |
| Dynamic Technology Lab Private Ltd | 0.01% | Reduce -12.6% | 23,762 | $38K |
| Vanguard Personalized Indexing Management, LLC | 0.00% | Reduce -24.3% | 16,298 | $26K |
| Dimensional Fund Advisors LP | 0.00% | New | 13,783 | $22K |
| Peak Planning Group, LLC | 0.01% | New | 12,500 | $20K |
| Two Sigma Securities, LLC | 0.00% | Reduce -4.0% | 11,700 | $19K |
| LPL Financial LLC | 0.00% | New | 11,297 | $18K |
| Squarepoint Ops LLC | 0.00% | New | 10,594 | $17K |
| HRT Financial LP | 0.00% | Reduce -21.3% | 11,091 | $17K |
| Tower Research Capital LLC (TRC) | 0.00% | New | 9,303 | $15K |
| Russell Investments Group, Ltd. | 0.00% | No change | 7,136 | $12K |
| FMR LLC | 0.00% | Reduce -33.2% | 6,808 | $11K |
| Meeder Asset Management Inc. | 0.00% | No change | 5,496 | $9K |
| US Bancorp \de | 0.00% | No change | 4,500 | $7K |
| Osaic Holdings, Inc. | 0.00% | Reduce -8.0% | 2,891 | $5K |
| JPMorgan Chase & Co. | 0.00% | Reduce -97.5% | 1,596 | $3K |
| MassMutual Private Wealth & Trust, FSB | 0.00% | No change | 593 | $961 |
| Nisa Investment Advisors, LLC | 0.00% | No change | 511 | $828 |
| Jones Financial Companies LLLP | 0.00% | No change | 500 | $810 |
| Allworth Financial LP | 0.00% | New | 500 | $810 |
| BNP Paribas Financial Markets | 0.00% | Reduce -98.0% | 307 | $497 |
| Larson Financial Group LLC | 0.00% | No change | 50 | $81 |
| Bank of America Corp. | 0.00% | Reduce -99.8% | 42 | $68 |
| Optiver Holding B.V. | 0.00% | No change | 18 | $29 |
| Arax Advisory Partners | 0.00% | Reduce -63.3% | 11 | $18 |
| Barclays PLC | 0.00% | No change | 3 | $5 |
| Royal Bank of Canada | 0.00% | Reduce -96.3% | 23 | $0 |
| Cwm, LLC | 0.00% | Reduce -3.0% | 32 | $0 |
"% of holder's portfolio" is MGX's weight in each manager's 13F, not the share of Metagenomi Therapeutics Inc. the manager owns.