---
schema_version: "secwatch.filing_event.v1"
accession: "0001477932-24-004299"
form_type: "8-K"
ticker: "LTBR"
cik: "0001084554"
company_name: "LIGHTBRIDGE Corp"
filed_at: "2024-07-19T23:59:59+00:00"
generated_at: "2026-05-31T18:56:05.818518+00:00"
event_type: "other"
sentiment: "neutral"
materiality_score: 0.2
calibrated_materiality_score: 0.2
confidence: "medium"
source: SEC EDGAR
---

# Lightbridge files prospectus supplement for ATM equity offering program

## Summary
- Filed prospectus supplement dated July 19, 2024 under effective Form S-3 registration statement (File No. 333-278388).
- ATM sales agreement with Stifel originally signed May 28, 2019, amended April 9, 2021 and May 8, 2024.
- No specific number of shares or offering price disclosed in today's filing.
- Shares may be sold through any method deemed an 'at-the-market' offering under Rule 415.

## SEC filing metadata
- accession: 0001477932-24-004299
- form_type: 8-K
- ticker: LTBR
- cik: 0001084554
- company_name: LIGHTBRIDGE Corp
- filed_at: 2024-07-19T23:59:59+00:00
- event_type: other
- sentiment: neutral
- materiality_score: 0.2
- calibrated_materiality_score: 0.2
- confidence: medium
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1084554/000147793224004299/0001477932-24-004299-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1084554/000147793224004299/ltbr_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001477932-24-004299
- JSON: https://secwatch.observer/filing/0001477932-24-004299.json
- Plain text: https://secwatch.observer/filing/0001477932-24-004299.txt

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