MGX · Metagenomi Therapeutics, Inc. · Holdings

$0.83 +0.02 (+2.40%) At close · Oct 20

Market Cap

$31.40M

37.78M

Volume · Oct 20 94.11K Avg daily vol (3M) 156.43K

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Use institutional holdings through the 13F API or MCP → See every holder of MGX: 13F, 13D and 13G, insiders and funds →

Institutional holdings are being reconciled with SEC filings. Holder totals and changes may be incomplete until reconciliation finishes.

The Sep 30, 2026 filing window is still open — showing the latest known positions. Funds that have not filed yet carry their prior-quarter positions; a fund that filed without this stock counts as sold out. Each fund's Change is measured against its own previous reported quarter, shown in the Reported column. Pick a completed quarter in the Quarter selector below to put every fund on one quarter and see the stock-wide activity breakdown.

Quarter:

Holders: 42

Total Value: $7,362,043

Total Shares: 6,190,681

Institutional Ownership Trend

11 quarters

Holder Concentration

Across 43 13F filers

Top Holder

17.2%

of institutional value

Top 5

54.1%

of institutional value

Top 10

79.5%

of institutional value

HHI

811

Broadly held

Who Holds MGX

Last 8 quarters through Sep 30, 2026 (filing window open)

Each kind of 13F filer's share of the common shares 13F filers report. Holder type comes from regulatory records, never the filer's name; style, turnover and horizon are measured from each filer's own 13F book. The quarter selector does not change this card.

Jun 30, 2026, the newest closed quarter: 43 filers, like-for-like change -3.1%; actively managed books -3.4%; index-like books -2.5%.

Holder type	Share	Filers	Change	New	Exited
Registered adviser	77.4%	17	-6.8%	0	3
Exempt adviser	0.3%	1	-38.8%	1	1
Bank	9.4%	7	+40.5%	1	1
Non-US	0.0%	1	-32.6%	0	0
Holding company	4.2%	4	0.0%	0	0
Broker-dealer	0.0%	0	-100.0%	0	1
Insurer	0.0%	0	—	0	0
Benefit plan	0.0%	0	—	0	0
Adviser	0.0%	0	—	0	0
Unknown	8.7%	13	+2.1%	2	2

Style	Share	Filers	Change	New	Exited
Index-like	31.8%	7	-2.5%	0	1
Systematic-like	11.8%	7	-3.3%	2	2
Concentrated	7.9%	8	+17.1%	1	0
Diversified active	48.6%	21	-6.1%	1	5
Not measured	0.0%	0	—	0	0
Unknown	0.0%	0	—	0	0

Turnover	Share	Filers	Change	New	Exited
Low turnover	23.5%	19	+11.5%	1	5
Medium turnover	35.5%	10	-9.2%	1	0
High turnover	20.9%	11	-10.2%	2	3
Unknown	20.2%	3	+1.7%	0	0
Not measured	0.0%	0	—	0	0

Holding horizon	Share	Filers	Change	New	Exited
Short horizon	29.5%	6	+2.0%	0	0
Medium horizon	14.2%	4	+8.0%	0	0
Long horizon	43.3%	29	-10.0%	2	5
Unknown	12.9%	4	-0.1%	2	3
Not measured	0.0%	0	—	0	0

13F book size	Share	Filers	Change	New	Exited
Under $1B	24.4%	8	+5.5%	1	0
$1B to $10B	9.6%	8	+7.1%	1	1
$10B to $100B	16.5%	7	-20.8%	1	4
$100B or more	49.5%	20	-1.6%	1	3
Not measured	0.0%	0	—	0	0

Client base	Share	Filers	Change	New	Exited
Individuals and high net worth	2.9%	3	0.0%	0	1
Pooled investment vehicles	35.0%	7	-4.2%	0	1
Registered funds and BDCs	28.5%	5	-2.5%	0	0
Governments and sovereign funds	8.4%	1	+1.6%	0	0
Diversified	2.6%	1	-58.1%	0	0
Pension and profit sharing plans	0.0%	0	-100.0%	0	1
Other investment advisers	0.0%	0	—	0	0
Insurance companies	0.0%	0	—	0	0
Unknown	22.6%	26	+12.2%	4	5

Private funds	Share	Filers	Change	New	Exited
Hedge funds	29.2%	7	-15.2%	1	3
Private equity funds	0.9%	1	0.0%	0	0
Venture capital funds	8.4%	1	0.0%	0	0
Other private funds	8.0%	3	+0.9%	0	0
No private funds	31.1%	6	-2.1%	0	1
Real estate funds	0.0%	0	—	0	0
Private funds, type not stated	0.0%	0	—	0	0
Securitized asset funds	0.0%	0	—	0	0
Unknown	22.4%	25	+13.3%	3	4

Location	Share	Filers	Change	New	Exited
United States	96.8%	36	-3.7%	2	6
Outside the US	3.2%	7	+21.1%	2	2

The Sep 30, 2026 filing window is still open, so its bar carries the Jun 30, 2026 positions of filers that have not filed yet.

How the mix is measured

Shares are 13F common shares restated to today's split basis; options and principal amounts are left out. The change compares only filers with a 13F in both quarters and keeps each filer in its bucket of the later quarter on both sides; a filer that continues under a new CIK is compared through its successor. Holder type comes from each filer's current regulatory profile; client base and private funds come from the Form ADV roster current at each quarter end (rosters from December 2019, so an earlier quarter reads Unknown). Style, turnover, horizon and book size are measured from each filer's 13F book in the newest measured quarter, and Not measured means none was. Actively managed books are those measured systematic-like, concentrated or diversified active.

Excluded 1 holder with no observed 2026-06-30 13F.

Conviction and Crowding

43 13F filers, quarter ended Jun 30, 2026

Measured across every 13F filer's common-share book once the quarter's filing window closed. Crowding counts filers with high turnover or that advise private funds on Form ADV.

Conviction holders

0.000% of filers hold it in their top 10

Mar 31, 2026: 1

Holders above 5%

median weight 0.000%

Mar 31, 2026: 0

Crowding

8.05%

of shares outstanding, 24th percentile

Mar 31, 2026: 9.15%

Private-fund advisers

7.74%

of shares outstanding

Institutional ownership

16.6%

18.6% of the estimated free float

Top 10 holders

79.5%

of 13F shares, Herfindahl 0.081

Active holders

-3.4%

like-for-like share change of active filers

5% stakes on record

0 13D, 2 13G (0 institutional, 0 passive, 2 exempt)

How long holders have held it value-weighted 6.7 quarters

Under 1 year 25.2% 1 to 3 years 74.8% 3 years or more 0.000% Since coverage start 0.000%

Managers in the top fifth by current three-year FundScore alpha were net buyers of $0 (0 buying, 0 selling).

Estimated Holder Cost Basis

Quarter ended Jun 30, 2026, on that quarter's share basis

Estimated, never filed: each 13F buy is costed at its quarter's average traded price and each sale keeps the average cost, so this is what holders paid on average if they traded evenly through each quarter.

Estimated avg cost

$2.47

estimated per share

Mar 31, 2026: $2.52

Quarter-end price

$1.19

implied by 13F values

Estimated gain or loss

-51.8%

price against the estimated cost

Estimated at a loss

100.0%

of costed 13F value

Estimated cost covers 58.8% of the 13F shares; positions already held when a filer's 13F history starts, or bought in a quarter without a trusted average price, have no estimate.

Shared Holders

Companies MGX's active holders also own, quarter ended Jun 30, 2026

#	Company	Shared holders	Similarity
1	OM Outset Medical, Inc.	4	0.516
2	JNJ Johnson & Johnson	4	0.025
3	NVDA Nvidia Corp	4	0.022
4	AMZN Amazon Com Inc	4	0.021
5	AAPL Apple Inc.	4	0.021
6	MSFT Microsoft Corp	4	0.021
7	GOOGL Alphabet Inc.	4	0.021
8	MU Micron Technology Inc	3	0.021
9	META Meta Platforms, Inc.	3	0.018
10	JPM Jpmorgan Chase & Co	3	0.018

Shareholder Targets

13F filers that own its peers but not MGX, quarter ended Jun 30, 2026

Found through its holder-overlap peers: OM, JNJ, NVDA, AMZN, AAPL, MSFT, GOOGL, MU, META, JPM. 7,174 filers in all.

#	Filer	In peers	Of book	Largest peers
1	VANGUARD PORTFOLIO MANAGEMENT LLC Registered adviser, Diversified active	$443,219,561,807 9 held	19.9%	NVDA, AAPL, GOOGL
2	Invesco Ltd. Adviser, Diversified active	$319,650,831,682 9 held	25.3%	NVDA, GOOGL, AAPL
3	NORGES BANK Non-US, Index-like	$303,444,207,572 9 held	30.2%	NVDA, GOOGL, AAPL
4	PRICE T ROWE ASSOCIATES INC /MD/ Registered adviser, Diversified active	$284,504,435,467 10 held	28.7%	NVDA, GOOGL, AAPL
5	BANK OF AMERICA CORP /DE/ Bank, Diversified active	$216,007,369,622 10 held	16.6%	NVDA, GOOGL, AAPL
6	Capital Research Global Investors Adviser, Diversified active	$199,087,278,021 9 held	27.6%	NVDA, GOOGL, MSFT
7	GOLDMAN SACHS GROUP INC Holding company, Index-like	$189,601,441,915 10 held	21.1%	NVDA, GOOGL, AAPL
8	Capital World Investors Adviser, Diversified active	$178,391,824,527 9 held	21.1%	GOOGL, MU, META
9	UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC Registered adviser, Index-like	$164,230,199,313 9 held	30.0%	NVDA, AAPL, GOOGL
10	CHARLES SCHWAB INVESTMENT MANAGEMENT INC Registered adviser, Diversified active	$150,682,945,269 9 held	20.2%	NVDA, AAPL, GOOGL

Fund Ownership of MGX by Fund Type

Registered funds' Form N-PORT reports for the quarter ended Jun 30, 2026

Index funds and index ETFs hold 3.88% of shares outstanding.

Fund type	Of shares outstanding	Change	Shares	Funds
Index funds	0.83%	+0.15 pp	315,175	5
Index ETFs	3.05%	+0.06 pp	1,152,346	3
Active ETFs	0.00%	-0.01 pp	0	0
Active funds	1.07%	0.00 pp	404,278	5
Unclassified	0.00%	0.00 pp	0	0
All registered funds	4.95%	+0.21 pp	1,871,799	13

How fund types are measured

Each fund series counts once, with its latest Form N-PORT report dated inside the quarter; only long share positions count, restated to today's split basis. The fund type is the series' latest Form N-CEN answer on or before the quarter end (the index-fund box and the exchange-traded flag), never its name. Unclassified funds have no usable N-CEN; unit investment trusts are among them, so index ownership is a floor. Funds sit inside their advisers' 13F reports, so these shares overlap the 13F figures and are never added to them.

Holder type: Registered adviser 17 Exempt adviser 1 Bank 7 Non-US 1 Holding company 4 Unknown 12

Showing 42 of 42

All Common Calls Puts

Compact Export CSV

Holder

Value (USD)

% of 13F

VANGUARD CAPITAL MANAGEMENT LLC

$1,282,463

17.42%

1,077,700

RENAISSANCE TECHNOLOGIES LLC

$883,456

12.00%

742,400

Catalio Capital Management, LP

$629,501

8.55%

528,993

Peapod Lane Capital LLC

$624,778

8.49%

525,024

TWO SIGMA INVESTMENTS, LP

$611,304

8.30%

513,701

BRIDGEWAY CAPITAL MANAGEMENT, LLC

$476,357

6.47%

400,300

WELLS FARGO & COMPANY/MN

$451,614

6.13%

379,508

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
WELLS FARGO ADVISORS FINANCIAL NETWORK, LLC	354,234	$421,538	93.3%	Defined
WELLS FARGO CLEARING SERVICES, LLC	25,274	$30,076	6.7%	Defined

GEODE CAPITAL MANAGEMENT, LLC

$343,510

4.67%

288,665

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
GEODE CAPITAL MANAGEMENT TRUST COMPANY, LLC	54,766	$65,171	19.0%	Defined
Held directly	233,899	$278,339	81.0%	Defined

PURA VIDA INVESTMENTS, LLC

$314,625

4.27%

264,391

BlackRock, Inc.

$306,580

4.16%

257,631

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BlackRock Investment Management, LLC	6,882	$8,189	2.7%	Sole
BlackRock Fund Advisors	95,479	$113,620	37.1%	Sole
BlackRock Institutional Trust Company, N.A.	155,270	$184,771	60.3%	Sole

VANGUARD FIDUCIARY TRUST CO

$203,788

2.77%

171,251

JACOBS LEVY EQUITY MANAGEMENT, INC

$190,400

2.59%

160,000

STATE STREET CORP

$142,621

1.94%

119,850

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
STATE STREET GLOBAL ADVISORS TRUST COMPANY	119,850	$142,621	100.0%	Defined

MILLENNIUM MANAGEMENT LLC

$135,689

1.84%

114,025

Man Group plc

$129,864

1.76%

109,130

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Numeric Investors LLC	109,130	$129,864	100.0%	Defined

Resolute Advisors LLC

$107,033

1.45%

89,944

NORTHERN TRUST CORP

$82,036

1.11%

68,938

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
NORTHERN TRUST CO joint	68,938	$82,036	100.0%	Defined

RBF Capital, LLC

$76,184

1.03%

64,021

XTX Topco Ltd

$66,291

0.90%

55,707

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
XTX EXECUTION SERVICES LLC joint	55,707	$66,291	100.0%	Defined

BBR PARTNERS, LLC

$63,549

0.86%

53,403

JANE STREET GROUP, LLC

$45,691

0.62%

38,396

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Jane Street Capital, LLC	35,100	$41,769	91.4%	Defined
Jane Street Global Trading, LLC	3,296	$3,922	8.6%	Defined

Fortitude Advisory Group L.L.C.

$39,527

0.54%

37,290

CITADEL ADVISORS LLC

$21,242

0.29%

17,851

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citadel Securities GP LLC	17,851	$21,242	100.0%	Defined

Qube Research & Technologies Ltd

$20,051

0.27%

16,850

UBS Group AG

$18,793

0.26%

15,793

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
UBS AG	15,793	$18,793	100.0%	Defined

TWO SIGMA SECURITIES, LLC

$18,055

0.25%

15,173

Vanguard Global Advisers, LLC

$15,936

0.22%

13,392

DIMENSIONAL FUND ADVISORS LP

$15,228

0.21%

12,797

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Dimensional Ireland Ltd	12,797	$15,228	100.0%	Defined

Peak Planning Group, LLC

$14,875

0.20%

12,500

MEEDER ASSET MANAGEMENT INC

$6,540

0.09%

5,496

MORGAN STANLEY

$6,308

0.09%

5,302

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
MORGAN STANLEY & CO. LLC	1,084	$1,289	20.4%	Defined
MORGAN STANLEY SMITH BARNEY LLC	4,218	$5,019	79.6%	Defined

Tower Research Capital LLC (TRC)

$6,307

0.09%

5,300

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Latour Trading LLC (Latour)	5,300	$6,307	100.0%	Defined

US BANCORP \DE\

$5,355

0.07%

4,500

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
US BANK NATIONAL ASSOCIATION	4,500	$5,355	100.0%	Defined

OSAIC HOLDINGS, INC.

$2,250

0.03%

1,891

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
OSAIC WEALTH, INC.	1,891	$2,250	100.0%	Defined

JPMORGAN CHASE & CO

$1,898

0.03%

1,596

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
J.P. Morgan Securities LLC	1,470	$1,749	92.1%	Defined
J.P. Morgan Securities plc	126	$149	7.9%	Defined

FMR LLC

$699

0.01%

588

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Fidelity Management & Research Co LLC	588	$699	100.0%	Defined

JONES FINANCIAL COMPANIES LLLP

$595

0.01%

500

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Edward D. Jones & Co., L.P.	500	$595	100.0%	Sole

Allworth Financial LP

$595

0.01%

500

BNP PARIBAS ARBITRAGE, SA

$246

0.00%

207

BARCLAYS PLC

$198

0.00%

167

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BARCLAYS CAPITAL INC.	167	$198	100.0%	Defined

Caitong International Asset Management Co., Ltd

0.00%

Optiver Holding B.V.

0.00%

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Optiver VOF	2	$2	100.0%	Defined

Key facts CIK 1785279 CUSIP 59102M104 13F (30d) 2 filings 2 filers Visit website Investor relations