HolderBook

METAGENOMI THERAPEUTICS INC (MGX)

Institutional ownership reported to the SEC as of Q2 2026, across 10 quarters.

43
Reporting holders
$7.6M
Reported value
16.9%
Of shares outstanding
0.0%
Calls
0.0%
Puts
-4
Holder change

Institutions report 6,400,403 shares against 37,777,105 outstanding. Shares only - option lines are excluded, which is why this can be compared with the company at all. The count comes from the cover page of the company's own most recent report, so it is dated when that was filed rather than at quarter end.

Calls and puts are the parts of reported value carried in derivative lines rather than shares, and they point in opposite directions: a manager holding calls is positioned for the security, one holding puts against it - or hedging shares they already own, which is why index funds carry so many. Most sites add the two together and report one figure, which averages away the only interesting part.

Holders

Download these holders as CSV

FilerValueShares Their book Held Change
VANGUARD CAPITAL MANAGEMENT LLC$1.3M1,077,7000.00%2q+1.9%+$23.5K
RENAISSANCE TECHNOLOGIES LLC$883.5K742,4000.00%8q-5.8%-$54.1K
Catalio Capital Management, LP$629.5K528,9930.12%7qHELD
Peapod Lane Capital LLC$624.8K525,0240.42%7q+1.6%+$9.8K
TWO SIGMA INVESTMENTS, LP$611.3K513,7010.00%10q+3.4%+$20.2K
BRIDGEWAY CAPITAL MANAGEMENT, LLC$476.4K400,3000.01%8q+1.1%+$5.4K
WELLS FARGO & COMPANY/MN$451.6K379,5080.00%10q-6.1%-$29.5K
GEODE CAPITAL MANAGEMENT, LLC$343.7K288,6650.00%10q-19.4%-$82.8K
PURA VIDA INVESTMENTS, LLC$314.6K264,3910.85%10qHELD
BlackRock, Inc.$306.6K257,6310.00%8q+11.9%+$32.7K
STATE STREET CORP$285.2K239,7000.00%9q+99.0%+$141.9K
VANGUARD FIDUCIARY TRUST CO$203.8K171,2510.00%2q+0.6%+$1.3K
JACOBS LEVY EQUITY MANAGEMENT, INC$190.4K160,0000.00%2q-58.1%-$264.4K
MILLENNIUM MANAGEMENT LLC$135.7K114,0250.00%10q-33.0%-$66.7K
Man Group plc$129.9K109,1300.00%4q+38.8%+$36.3K
Resolute Advisors LLC$107.0K89,9440.03%10qHELD
Marquette Asset Management, LLC$85.8K72,1210.01%newNEW
NORTHERN TRUST CORP$82.0K68,9380.00%10q-8.3%-$7.4K
RBF Capital, LLC$76.2K64,0210.00%5qHELD
XTX Topco Ltd$66.3K55,7070.00%4q+37.3%+$18.0K
BBR PARTNERS, LLC$63.5K53,4030.00%7qHELD
JANE STREET GROUP, LLC$45.7K38,3960.00%5q-74.6%-$134.5K
Fortitude Advisory Group L.L.C.$44.3K37,1900.02%7qHELD
CITADEL ADVISORS LLC$42.5K35,7020.00%3q+110.1%+$22.3K
Qube Research & Technologies Ltd$20.1K16,8500.00%newNEW
UBS Group AG$18.8K15,7930.00%10q-1.9%
TWO SIGMA SECURITIES, LLC$18.1K15,1730.00%newNEW
Vanguard Global Advisers, LLC$15.9K13,3920.00%2qHELD
DIMENSIONAL FUND ADVISORS LP$15.2K12,7970.00%3qHELD
Peak Planning Group, LLC$14.9K12,5000.00%3qHELD
MEEDER ASSET MANAGEMENT INC$6.5K5,4960.00%6qHELD
MORGAN STANLEY$6.3K5,3020.00%10q-80.8%-$26.5K
Tower Research Capital LLC (TRC)$6.3K5,3000.00%3q+12519.0%+$6.3K
US BANCORP \DE\$5.4K4,5000.00%10qHELD
OSAIC HOLDINGS, INC.$2.2K1,8910.00%8q-34.6%-$1.2K
JPMORGAN CHASE & CO$1.9K1,5960.00%10qHELD
FMR LLC$7005880.00%8q-87.5%-$4.9K
JONES FINANCIAL COMPANIES LLLP$6255000.00%6qHELD
Allworth Financial LP$5955000.00%3qHELD
BNP PARIBAS FINANCIAL MARKETS$2462070.00%9q-32.6%
BARCLAYS PLC$1991670.00%newNEW
Caitong International Asset Management Co., Ltd$1080.00%2q+100.0%
Optiver Holding B.V.$220.00%4q-88.9%

Five percent filings

Anyone crossing 5% of a company must say so within days - far sooner than the next quarterly holdings report. A 13D declares an intent to influence the company; a 13G is the passive version. See all activist filings →

FiledFormFiler % of class
2026-09-1013GThomas Brian C. INDIVIDUAL7.3%

Quarter by quarter

Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.

QuarterHoldersValue SharesNewAdded TrimmedOptions
Q2 202643$7.6M6,400,403412130.0%
Q1 202647$8.9M6,665,85038160.0%
Q4 202554$11.9M7,357,2261114150.0%
Q3 202556$13.0M5,481,157911210.0%
Q2 202568$9.5M7,120,9221619200.0%
Q1 202578$12.5M9,202,6791027200.0%
Q4 202477$38.9M10,769,7602329130.0%
Q3 202464$24.1M11,089,2522121100.0%
Q2 202454$49.6M12,191,1421415140.0%
Q1 202449$140.6M13,367,63649000.0%