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.

Addex Therapeutics Ltd.

CIK 0001574232ADXN· quarter ending 2026-06-30

Shares outstanding

147,831,814

as of 2025-12-31 · 20-F cover page, filed 2026-05-15

Held by 13F filers

0.0% of shares outstanding

Holders

-2 vs 2026-03-31 · 1 new, 3 exited

Value

$274

shares -89.5% vs prior quarter

Share classes (cover page of the 20-F filed 2026-05-15, as of 2025-12-31)

Class	Listed	Shares outstanding	Held by 13F filers	% of class	Holders	CUSIP
Common stock	ADXN · NASDAQ	147,831,814	48	0.0%	2	00654J206

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
	00654J206	SPONSORED ADS	2	48	147,831,814	0.0%	$274	—	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 (2 of 2 · 00654J206)

change vs 2026-03-31

#	Filer	Shares	% of class	Value	Change
1	UBS Group AG	47	0.00%	$268	NEW
2	SBI Securities Co., Ltd.	1	0.00%	$6	—

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

MORGAN STANLEY	−301
GAMMA Investing LLC	−81
RHUMBLINE ADVISERS	−72

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
Timothy Mark Dyer	SCHEDULE 13D/A	2026-09-04	2026-09-02	19,165,714	9.01%

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.