---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-25-120489"
form_type: "8-K"
ticker: "STAI"
cik: "0001994624"
company_name: "ScanTech AI Systems Inc."
filed_at: "2025-12-12T23:59:59+00:00"
generated_at: "2026-05-16T13:24:22.638628+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# ScanTech AI Systems files 1-for-20 reverse stock split effective Dec 15, 2025

## Summary
- Stockholders approved reverse stock split at annual meeting on Nov 21, 2025.
- Effective 5:00 PM ET Dec 15, 2025; split-adjusted trading starts Dec 16, 2025 under STAI.
- No fractional shares; cash in lieu based on Dec 15 closing price.
- Par value unchanged; new CUSIP 80603V203.

## SEC filing metadata
- accession: 0001104659-25-120489
- form_type: 8-K
- ticker: STAI
- cik: 0001994624
- company_name: ScanTech AI Systems Inc.
- filed_at: 2025-12-12T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 3.03, 5.03, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1994624/000110465925120489/0001104659-25-120489-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1994624/000110465925120489/tm2533247d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-25-120489
- JSON: https://secwatch.observer/filing/0001104659-25-120489.json
- Plain text: https://secwatch.observer/filing/0001104659-25-120489.txt

## Key facts
- Governance Changes
  ScanTech AI Systems Inc.: Filed certificate of amendment to effectuate a 1-for-20 reverse stock split of common stock (effective 2025-12-15).
  - Change: charter amendment
  - Effective: 2025-12-15
  source text: On December 11, 2025, ScanTech AI Systems Inc. (the “Company”) filed a certificate of amendment to the Company’s Amended and Restated Certificate of Incorporation (the “Amendment”) with the Secretary of State of the State of Delaware to effectuate a 1-for-20 reverse stock split
  evidence_url: https://www.sec.gov/Archives/edgar/data/1994624/000110465925120489/0001104659-25-120489-index.htm

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