secwatch.observer — SEC 8-K summary ====================================== Issuer: Gain Therapeutics, Inc. (GANX) CIK: 0001819411 Form: 8-K Filed at: 2026-09-28T20:30:45+00:00 Accession: 0001104659-26-111391 Event type: leadership Sentiment: neutral Materiality: 0.40 Item codes: 5.02 LLM model: deepseek-v4.1-flash:cloud@v2 Gain Therapeutics CFO Gianluca Fuggetta resigns Sept 30; CEO Gene Mack named interim CFO -------------------------------------------------------------------------------- - Gianluca Fuggetta, SVP of Finance and principal financial and accounting officer, notified the company on Sept 22, 2026 of his resignation effective Sept 30, 2026 to pursue other opportunities. - Board appointed President and CEO Gene Mack as interim CFO effective Oct 1, 2026; he will also assume principal financial officer and principal accounting officer duties. - Mack continues as President and CEO; the company said it is engaged in an ongoing search for a permanent replacement for the principal financial/accounting officer roles. - Mack's compensatory and other material employment terms remain unchanged in connection with the interim CFO appointment. - No arrangements or understandings between Mack and any other persons led to his selection, and no Item 404(a) related-party transactions were disclosed. Source: EDGAR index: https://www.sec.gov/Archives/edgar/data/1819411/000110465926111391/0001104659-26-111391-index.htm Primary doc: https://www.sec.gov/Archives/edgar/data/1819411/000110465926111391/tm2626106d1_8k.htm HTML page: https://secwatch.observer/filing/0001104659-26-111391 License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer