Form 4 Filing for Addex Therapeutics Ltd.

This Form 4 filing details transactions by Isaac Manke, a director at Addex Therapeutics Ltd. On September 2, 2026, there were significant changes in Manke's holdings. Specifically, 219,561 shares of Common Stock were acquired, with a transaction price of $0.00 per share. Concurrently, Manke disposed of 219,561 shares of Common Stock. In derivative transactions, 50,000 stock options (Right to Buy) were disposed of, and 50,000 stock options were acquired, also with a transaction price of $0.00 per share. The filing also notes a repricing of options to $0.032, with previous strike prices adjusted due to a deferred strike price payment plan and currency conversion from CHF to USD. The footnotes provide further details on the specific dates and prices related to these transactions, including adjustments to strike prices.