Form
SCHEDULE 13D/A
Active or control-oriented beneficial ownership filing.
Timothy Mark Dyer - 02 Sep 2026 SCHEDULE 13D/A Report for Addex Therapeutics Ltd. American Depositary Shares, each representing 120 ordinary shares Ordinary shares (ADXN)
- Filing manager
- Timothy Mark Dyer
- Reporting owner
- Timothy Mark Dyer
- Beneficially owned shares
- 19,165,714 shares
- Large-stake signal
-
Ownership
9%Beneficial ownership of this reported class.
Shares
19,165,714 sharesShares beneficially owned as disclosed.
Event date
02 Sep 2026Date tied to the ownership event or amendment.
Accepted by SEC
04 Sep 2026EDGAR acceptance date.
How to read this large-stake filing
- Schedule 13D/G filings focus on beneficial ownership stakes, not a full portfolio.
- Compare this filing with the holder history and issuer page before treating the percentage as a current position.
- Use amendments to understand whether the disclosed stake increased, decreased, or changed reporting status.
- Class ownership
- 9%
- Symbol
- ADXN
- Shares outstanding
- 212,716,027 shares
- SEC form
- SCHEDULE 13D/A
- Accepted by SEC
- 04 Sep 2026, 16:00:08 UTC
- Event date
- 02 Sep 2026
- Prior SEC filing
- 27 Aug 2026
- Source filing
- View source filing
Ownership signal
CIK-linked ownership evidence from parsed SEC filings.
2 signals
Subject security
Names, identifiers, and filing context for this profile.
2 source fields
Source evidence
Original filing metadata and source links for verification.
5 source fields
Key filing fact
Timothy Mark Dyer disclosed 9% ownership in Addex Therapeutics Ltd. American Depositary Shares, each representing 120 ordinary shares Ordinary shares (ADXN) on 02 Sep 2026.
Key facts
- Timothy Mark Dyer filed SCHEDULE 13D/A for Addex Therapeutics Ltd. American Depositary Shares, each representing 120 ordinary shares Ordinary shares (ADXN).
- Disclosed ownership: 9%.
- Date of event: 02 Sep 2026.
Change
- Previous schedule filing date: 27 Aug 2026.
- Current filing was accepted on 04 Sep 2026, 16:00.
Research use
- This page turns one Schedule 13D/G filing into a quick large-stake read before the raw reporting-person rows.
- Use the linked SEC filing as the source of truth for ownership percentages, shares, and reporting-party details.
Evidence
Backed by Schedule 13D/13G
View source filing
Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.
Reporting persons
Disclosed reporting parties (1)
Names, ownership percentages, voting power, signatures, titles, and CIKs as disclosed in this Schedule 13D/G filing.
| Name | Ownership | Shares owned | Sole voting power | Shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| Timothy Mark Dyer | 9% | 19,165,714 | 19,165,714 | 0 | /s/ Timothy Mark Dyer | Timothy Mark Dyer | 0001830908 |
CIK / CUSIP context first