Institutional HoldersBeta

Who holds a company, from every 13F filed for the quarter, one row per filer exactly as filed, against the latest share count the company reported.

Mega Matrix Inc

CIK 0001953021MPU· quarter ending 2026-06-30

Shares outstanding

67,860,588

as of 2025-12-31 · 20-F/A cover page, filed 2026-04-27

Held by 13F filers

1,900,012

3.1% of Common Class A

Holders

-1 vs 2026-03-31 · 2 new, 3 exited

Value

$560K

shares +191.6% vs prior quarter

Share classes (cover page of the 20-F/A filed 2026-04-27, as of 2025-12-31)

Class	Listed	Shares outstanding	Held by 13F filers	% of class	Holders	CUSIP
Common Class A	MPU · NYSE	61,926,888	1,900,012	3.1%	10	G6005C108
Common Class B	not listed	2,809,977	—	—
Common Class C	not listed	3,123,723	—	—

Each class is compared with its own share count; classes are not added together. A class that is not exchange-listed cannot be held by 13F filers.

Securities (CUSIPs held in 13F this quarter)

tick to combine

Count	CUSIP	Class (as filers write it)	Holders	Shares held	Class shares	% of class	Value	Options	Mapped via
	G6005C108	CL A ORD SHS	10	1,900,012	61,926,888	3.1%	$560K	—	13DG	holders →

Totals combine the ticked CUSIPs and update as you tick: common-stock classes by default; preferreds, notes, warrants and depositary shares are listed but not counted. "holders →" shows a single CUSIP on its own. Bonds are held as a principal amount, not shares. Options positions are never counted as holdings. 1 further CUSIPs map to this company (mostly bonds) but no 13F filer held them this quarter.

Top holders (10 of 10 · G6005C108)

change vs 2026-03-31

#	Filer	Shares	% of class	Value	Change
1	HRT FINANCIAL LP	956,921	1.55%	$282K	NEW
2	UBS Group AG	388,970	0.63%	$115K	+384,229 (+8104.4%)
3	MORGAN STANLEY	240,449	0.39%	$71K	—
4	GOLDMAN SACHS GROUP INC	138,345	0.22%	$41K	+40,131 (+40.9%)
5	MILLENNIUM MANAGEMENT LLC	52,067	0.08%	$15K	-53,640 (-50.7%)
6	RENAISSANCE TECHNOLOGIES LLC	35,776	0.06%	$11K	NEW
7	TWO SIGMA SECURITIES, LLC	27,698	0.04%	$8K	+14,323 (+107.1%)
8	XTX Topco Ltd	24,623	0.04%	$7K	-28,238 (-53.4%)
9	TWO SIGMA INVESTMENTS, LP	23,163	0.04%	$7K	-22,018 (-48.7%)
10	CAPITAL ADVISORS INC/OK	12,000	0.02%	$4K	—

Exited since 2026-03-31 (3 filers; largest 3 shown)

JANE STREET GROUP, LLC	−74,692
CITIGROUP INC	−4,361
WELLS FARGO & COMPANY/MN	−29

Large holders from 13D/13G (latest per reporting person, last 2 years)

Filed when a holder crosses 5% or changes materially, so often more current than the quarter-end 13F. Percentages are the filer's own, against the share count they used.

Reporting person	Form	Filed	Event	Shares	% of class
Cosmic Vision Innovations Ltd	SCHEDULE 13D/A	2026-06-22	2026-06-08	2,847,453	4.56%
Yaman Demir	SCHEDULE 13D	2025-11-24	2025-11-09	3,290,390	5.94%
Yucheng Hu	SCHEDULE 13D/A	2025-11-13	2025-11-09	2,763,310	5.04%

Source: SEC Form 13F-HR information tables for the quarter ending 2026-06-30 (filed within 45 days of quarter end; amendments applied; values normalised to dollars), the share count from the company's latest 10-K/10-Q XBRL cover page, and Schedule 13D/13G filings. Each row is a legal 13F filer as filed — related entities (e.g. Vanguard's advisers) are not merged. Retail brokerage accounts are not reported on 13F, so the remainder is mostly retail and insiders.