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.

Myseum.AI, Inc.

CIK 0001648960MYSE· quarter ending 2026-06-30

Shares outstanding

5,196,430

as of 2026-08-14 · 10-Q cover page, filed 2026-08-14

Held by 13F filers

195,830

3.8% of shares outstanding

Holders

-5 vs 2026-03-31 · 2 new, 7 exited

Value

$493K

shares -8.8% vs prior quarter

Share classes (cover page of the 10-Q filed 2026-08-14, as of 2026-08-14)

Class	Listed	Shares outstanding	Held by 13F filers	% of class	Holders	CUSIP
Common stock	MYSE	5,196,430	195,830	3.8%	12	23816M206

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
	23816M206	COM NEW	12	195,830	5,196,430	3.8%	$493K	—	13DG	holders →
	23816M115	*W EXP 08/17/202not common	3	48,019	—	—	$2K	—	prefix	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 (12 of 12 · 23816M206)

change vs 2026-03-31

#	Filer	Shares	% of class	Value	Change
1	JANE STREET GROUP, LLC	102,736	1.98%	$259K	NEW
2	GEODE CAPITAL MANAGEMENT, LLC	35,757	0.69%	$90K	-85,916 (-70.6%)
3	VANGUARD CAPITAL MANAGEMENT LLC	32,906	0.63%	$83K	—
4	VANGUARD FIDUCIARY TRUST CO	14,994	0.29%	$38K	—
5	OSAIC HOLDINGS, INC.	3,807	0.07%	$10K	+2 (+0.1%)
6	UBS Group AG	3,708	0.07%	$9K	+3,695 (+28423.1%)
7	Tower Research Capital LLC (TRC)	1,200	0.02%	$3K	-321 (-21.1%)
8	ASSETMARK, INC	400	0.01%	$1K	—
9	IFP Advisors, Inc	200	0.00%	$504	—
10	SBI Securities Co., Ltd.	71	0.00%	$179	-42 (-37.2%)
11	HARBOUR INVESTMENTS, INC.	50	0.00%	$126	—
12	NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO	1	0.00%	$3	NEW

Exited since 2026-03-31 (7 filers; largest 7 shown)

XTX Topco Ltd	−17,181
COMMONWEALTH EQUITY SERVICES, LLC	−12,116
FNY Investment Advisers, LLC	−8,500
TOTH FINANCIAL ADVISORY CORP	−800
JONES FINANCIAL COMPANIES LLLP	−500
ROYAL BANK OF CANADA	−40
Russell Investments Group, Ltd.	−12

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	% of class
Daniel B. Asher	SCHEDULE 13G	2025-01-14	2025-01-08	0%
Intracoastal Capital LLC	SCHEDULE 13G	2025-01-14	2025-01-08	0%
Mitchell P. Kopin	SCHEDULE 13G	2025-01-14	2025-01-08	0%

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.