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Teyssedou Lenaic Nathanael's Form 4 filing

Addex Therapeutics Ltd. (ADXN) · filed Sep 4, 2026

Accession no.
0001104659-26-105509
Filed
Sep 4, 2026, 4:11 PM ET
Trade date
Sep 2, 2026
Filing delay
2 days
Rule 10b5-1 plan
Not checked

This filing lists 16 derivative transactions. It was filed 2 days after the trade.

Reporting owners

A Form 4 can have several reporting owners, such as a person and a fund they control. Trade tables show the first one.

Reporting owners on this filing
OwnerRelationship to the company
Teyssedou Lenaic NathanaelCIK 0002123881Officer (PRINCIPAL ACCOUNTING OFFICER)

Non-derivative securities (Table I)

Acquisitions and disposals of common stock and similar shares, one row per line on the filing.

This filing has no transactions of this kind.

Derivative securities (Table II)

Options, warrants, restricted stock units and similar. Shares are the underlying shares; price and value are for the derivative itself, and the holding after is in derivative units.

Derivative transactions
Trade dateSecurityTransactionUnderlying sharesUnit priceValueHeld afterOwnershipFlags
Sep 2, 2026Common StockDReturned to the companyDisposed−37,770$0.00$0565,138Direct
Sep 2, 2026Common StockAGrant or awardAcquired+37,770$0.00$0602,908Direct
Sep 2, 2026Common StockDReturned to the companyDisposed−59,530$0.00$0543,378Direct
Sep 2, 2026Common StockAGrant or awardAcquired+59,530$0.00$0602,908Direct
Sep 2, 2026Common StockDReturned to the companyDisposed−10,000$0.00$0592,908Direct
Sep 2, 2026Common StockAGrant or awardAcquired+10,000$0.00$0602,908Direct
Sep 2, 2026Common StockDReturned to the companyDisposed−30,000$0.00$0572,908Direct
Sep 2, 2026Common StockAGrant or awardAcquired+30,000$0.00$0602,908Direct
Sep 2, 2026Common StockDReturned to the companyDisposed−65,620$0.00$0537,288Direct
Sep 2, 2026Common StockAGrant or awardAcquired+65,620$0.00$0602,908Direct
Sep 2, 2026Common StockDReturned to the companyDisposed−90,529$0.00$0512,379Direct
Sep 2, 2026Common StockAGrant or awardAcquired+90,529$0.00$0602,908Direct
Sep 2, 2026Common StockDReturned to the companyDisposed−208,974$0.00$0393,934Direct
Sep 2, 2026Common StockAGrant or awardAcquired+208,974$0.00$0602,908Direct
Sep 2, 2026Common StockDReturned to the companyDisposed−100,485$0.00$0502,423Direct
Sep 2, 2026Common StockAGrant or awardAcquired+100,485$0.00$0602,908Direct

Footnotes and remarks

Livermore keeps the footnotes that transaction prices refer to, all footnotes of amendments (Form 4/A) and the filing's remarks. Other footnotes, such as how indirect holdings are held or the details of a trading plan, are only in the original on SEC EDGAR.

No transaction price on this filing refers to a footnote.

Read the full filing on SEC EDGAR (opens in a new tab)