Metagenomi, Inc. (MGX) Institutional Ownership

Ownership Summary

Recent 13F filings as of December 2025 show that 56 institutional investors hold a position in Metagenomi, Inc. (NASDAQ:MGX).

• The percentage of Metagenomi owned by institutions changed from 16.2% in September 2025 to 18.5% in December 2025, marking a slight up trend.
• On a quarter-over-quarter basis, institutional holdings shifted by 30.72%, with a year-over-year a decrease of 25.33% in the count of filers.
• Among the 56 institutional holders of Metagenomi, 25 added to their stakes while 17 trimmed their positions and 14 held steady.
• The aggregate institutional position in Metagenomi now stands at 6.83Mn shares as of December 2025, after investors increased their holdings (up by 1.60Mn shares quarter on quarter which is down 3.86Mn shares year over year).
• As of December 31, 2025, VANGUARD GROUP INC held Metagenomi's largest shareholding position with over 1.27Mn shares, representing 3.44% of total outstanding shares.
• Among the most significant buyers of Metagenomi during December 2025 were RENAISSANCE TECHNOLOGIES LLC (461.40K), JANE STREET GROUP, LLC (335.60K), TWO SIGMA INVESTMENTS, LP (233.86K), BRIDGEWAY CAPITAL MANAGEMENT, LLC (200.00K), CITADEL ADVISORS LLC (178.17K).
• Leading sellers of Metagenomi stock in December 2025 included MORGAN STANLEY (181.65K), MILLENNIUM MANAGEMENT LLC (75.51K), JPMORGAN CHASE & CO (60.96K), BANK OF AMERICA CORP /DE/ (18.72K), Peapod Lane Capital LLC (16.16K).
• The top 10 institutional holders of Metagenomi for the quarter ending December 2025 included VANGUARD GROUP INC (1.27Mn), RENAISSANCE TECHNOLOGIES LLC (628.40K), Catalio Capital Management, LP (528.99K), Peapod Lane Capital LLC (497.65K), TWO SIGMA INVESTMENTS, LP (441.39K), JANE STREET GROUP, LLC (433.86K), BRIDGEWAY CAPITAL MANAGEMENT, LLC (395.80K), GEODE CAPITAL MANAGEMENT, LLC (305.91K), PURA VIDA INVESTMENTS, LLC (264.39K), MILLENNIUM MANAGEMENT LLC (235.19K).