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Metagenomi Therapeutics, Inc.

MGX
Exchange
Nasdaq
Industry
Biological Products, (No Diagnostic Substances)
SEC CIK
0001785279

In the last 90 days, Metagenomi Therapeutics, Inc. insiders filed 1 open-market purchase and 3 sales; 43 institutions reported holding it in 13F filings for Q2 2026, worth $7.45M in total; no superinvestor holds it.

13F holders, Q1 2026

Institutional positions in Metagenomi Therapeutics, Inc. as of Mar 31, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
48
−7 vs. Q4 2025
Shares held
6.46M
+970.0K (+17.7%) vs. Q4 2025
Total value
$8.65M
−$247.3K (−2.8%) vs. Q4 2025
New holders
5
9 more added
Sold out
12
15 more reduced

1 institution that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting MGX on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ1 2026: 48 institutions
Q1 2021: 0 institutionsQ2 2021: 0 institutionsQ3 2021: 0 institutionsQ4 2021: 0 institutionsQ1 2022: 0 institutionsQ2 2022: 0 institutionsQ3 2022: 0 institutionsQ4 2022: 0 institutionsQ1 2023: 0 institutionsQ2 2023: 0 institutionsQ3 2023: 0 institutionsQ4 2023: 0 institutionsQ1 2024: 50 institutionsQ2 2024: 54 institutionsQ3 2024: 67 institutionsQ4 2024: 77 institutionsQ1 2025: 79 institutionsQ2 2025: 69 institutionsQ3 2025: 58 institutionsQ4 2025: 56 institutionsQ1 2026: 48 institutionsQ2 2026: 43 institutions
Value heldQ1 2026: $8.65M
Q1 2021: $0Q2 2021: $0Q3 2021: $0Q4 2021: $0Q1 2022: $0Q2 2022: $0Q3 2022: $0Q4 2022: $0Q1 2023: $0Q2 2023: $0Q3 2023: $0Q4 2023: $0Q1 2024: $140.3MQ2 2024: $49.6MQ3 2024: $25.3MQ4 2024: $38.8MQ1 2025: $13.5MQ2 2025: $10.4MQ3 2025: $14.2MQ4 2025: $11.0MQ1 2026: $8.65MQ2 2026: $7.45M
Institutions holding MGX and their total value by quarter
QuarterHoldersValue
Q2 202643$7.45M
Q1 202648$8.65M
Q4 202556$11.0M
Q3 202558$14.2M
Q2 202569$10.4M
Q1 202579$13.5M
Q4 202477$38.8M
Q3 202467$25.3M
Q2 202454$49.6M
Q1 202450$140.3M
Q4 20230$0
Q3 20230$0
Q2 20230$0
Q1 20230$0
Q4 20220$0
Q3 20220$0
Q2 20220$0
Q1 20220$0
Q4 20210$0
Q3 20210$0
Q2 20210$0
Q1 20210$0

Institutions, Q1 2026

Shares, value and share of portfolio for each institution holding Metagenomi Therapeutics, Inc.; share changes are against Q4 2025.

Institutions holding MGX in Q1 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Vanguard Capital Management LLC1,057,944$1.42M0.00%+1,057,944New
Renaissance Technologies LLC787,900$1.06M0.00%+159,500+25.4%Added
Catalio Capital Management, LP528,993$708.9K0.15%00.0%Unchanged
Peapod Lane Capital LLC516,761$682.9K0.56%+19,108+3.8%Added
Two Sigma Investments, LP496,767$665.7K0.00%+55,379+12.5%Added
Bridgeway Capital Management, LLC395,800$530.4K0.01%00.0%Unchanged
Jacobs Levy Equity Management, Inc382,153$512.1K0.00%+382,153New
Geode Capital Management, LLC358,200$480.2K0.00%+52,292+17.1%Added
Pura Vida Investments, LLC264,391$354.3K2.38%00.0%Unchanged
BlackRock, Inc.230,134$308.4K0.00%+5,993+2.7%Added
Wells Fargo & Company202,138$270.9K0.00%+83,728+70.7%Added
Vanguard Fiduciary Trust Co170,174$228.0K0.00%+170,174New
Millennium Management LLC170,104$227.9K0.00%−65,081−27.7%Reduced
Jane Street Group, LLC151,440$202.9K0.00%−282,419−65.1%Reduced
State Street Corp120,427$161.4K0.00%00.0%Unchanged
Resolute Partners Group89,944$120.5K0.05%00.0%Unchanged
Man Group plc78,636$105.4K0.00%+22,139+39.2%Added
Northern Trust Corp75,172$100.7K0.00%00.0%Unchanged
RBF Capital, LLC64,021$85.8K0.00%00.0%Unchanged
BBR Partners, LLC53,403$71.6K0.00%00.0%Unchanged
XTX Topco Ltd40,582$54.4K0.00%−28,412−41.2%Reduced
Fortitude Advisory Group L.L.C.37,190$49.8K0.02%−1,550−4.0%Reduced
Morgan Stanley27,566$36.9K0.00%−32,116−53.8%Reduced
Marshall Wace, LLP27,521$36.9K0.00%−51,615−65.2%Reduced
Citadel Advisors LLC16,993$22.8K0.00%−161,179−90.5%Reduced
LPL Financial LLC16,834$22.6K0.00%+5,537+49.0%Added
UBS Group AG16,098$21.6K0.00%−9,001−35.9%Reduced
Vanguard Global Advisers, LLC13,392$17.9K0.00%+13,392New
Dimensional Fund Advisors LP12,797$17.1K0.00%−986−7.2%Reduced
Peak Planning Group, LLC12,500$16.8K0.00%00.0%Unchanged
Point72 Asset Management, L.P.11,726$15.7K0.00%−14,863−55.9%Reduced
HRT Financial LP10,674$14.0K0.00%−417−3.8%Reduced
Meeder Asset Management Inc5,496$7.37K0.00%00.0%Unchanged
FMR LLC4,718$6.32K0.00%−2,090−30.7%Reduced
US Bancorp4,500$6.03K0.00%00.0%Unchanged
Russell Investments Group, Ltd.4,179$5.60K0.00%−2,957−41.4%Reduced
Advisor Group Holdings, Inc.2,891$3.87K0.00%00.0%Unchanged
JPMorgan Chase & Co1,596$2.02K0.00%00.0%Unchanged
Nisa Investment Advisors, LLC511$6850.00%00.0%Unchanged
Allworth Financial LP500$6700.00%00.0%Unchanged
Jones Financial Companies LLLP500$6600.00%00.0%Unchanged
BNP Paribas Arbitrage, SA307$4110.00%00.0%Unchanged
Larson Financial Group LLC50$670.00%00.0%Unchanged
Tower Research Capital LLC (TRC)42$560.00%−9,261−99.5%Reduced
CWM, LLC25$340.00%−7−21.9%Reduced
Optiver Holding B.V.18$240.00%00.0%Unchanged
Caitong International Asset Management Co., Ltd4$50.00%+4New
Royal Bank of Canada314$00.00%+291+1,265.2%Added
Two Sigma Advisers, LP0$00.00%−201,300−100.0%Sold out
Acadian Asset Management LLC0$00.00%−64,875−100.0%Sold out
Quadrature Capital Ltd0$00.00%−33,917−100.0%Sold out
Panagora Asset Management Inc0$00.00%−32,580−100.0%Sold out
Dynamic Technology Lab Private Ltd0$00.00%−23,762−100.0%Sold out
JustInvest LLC0$00.00%−16,298−100.0%Sold out
Two Sigma Securities, LLC0$00.00%−11,700−100.0%Sold out
Squarepoint Ops LLC0$00.00%−10,594−100.0%Sold out
Massmutual Trust Co FSB0$00.00%−593−100.0%Sold out
Bank of America Corp0$00.00%−42−100.0%Sold out
SRS Capital Advisors, Inc.0$00.00%−11−100.0%Sold out
Barclays PLC0$00.00%−3−100.0%Sold out
Vanguard Group Inc––––Not filed