---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-25-116947"
form_type: "8-K"
ticker: "GANX"
cik: "0001819411"
company_name: "Gain Therapeutics, Inc."
filed_at: "2025-11-28T23:59:59+00:00"
generated_at: "2026-05-16T16:14:57.709404+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# Gain Therapeutics files prospectus supplement for up to $35.5M ATM stock offering

## Summary
- Prospectus supplement filed for ATM offering of up to $35.5M of common stock via Oppenheimer & Co.
- Company previously sold $14.47M under prior ATM program dated Sept 2024, now updating under new shelf.
- New S-3 registration (333-287622) became effective Nov 26, 2025; supplement dated Nov 28, 2025.
- Proceeds expected for general corporate purposes; legal opinion from Lowenstein Sandler attached.

## SEC filing metadata
- accession: 0001104659-25-116947
- form_type: 8-K
- ticker: GANX
- cik: 0001819411
- company_name: Gain Therapeutics, Inc.
- filed_at: 2025-11-28T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1819411/000110465925116947/0001104659-25-116947-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1819411/000110465925116947/tm2530369d4_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-25-116947
- JSON: https://secwatch.observer/filing/0001104659-25-116947.json
- Plain text: https://secwatch.observer/filing/0001104659-25-116947.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.