---
schema_version: "secwatch.filing_event.v1"
accession: "0001477932-25-003515"
form_type: "8-K"
ticker: "LTBR"
cik: "0001084554"
company_name: "LIGHTBRIDGE Corp"
filed_at: "2025-05-12T23:59:59+00:00"
generated_at: "2026-05-21T22:52:50.553265+00:00"
event_type: "earnings"
sentiment: "neutral"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# Lightbridge Q1 net loss widens to $4.8M; cash rises to $56.9M on ATM issuance

## Summary
- Net loss of $4.8M for Q1 2025 compared to $2.8M in Q1 2024, driven by higher R&D and G&A costs.
- Cash and cash equivalents $56.9M, up $16.9M from Dec 2024, mainly from $20.2M ATM stock issuance.
- R&D expenses $1.7M (+$0.7M YoY); G&A $3.5M (+$1.3M) including $0.5M accelerated vesting for a former employee.
- Successful co-extrusion demonstration of depleted uranium-zirconium coupon with zirconium cladding at Idaho National Laboratory.
- Signed MOU with Oklo in January 2025 to explore synergies in fuel fabrication, reprocessing, and recycling.

## SEC filing metadata
- accession: 0001477932-25-003515
- form_type: 8-K
- ticker: LTBR
- cik: 0001084554
- company_name: LIGHTBRIDGE Corp
- filed_at: 2025-05-12T23:59:59+00:00
- event_type: earnings
- sentiment: neutral
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1084554/000147793225003515/0001477932-25-003515-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1084554/000147793225003515/ltbr_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001477932-25-003515
- JSON: https://secwatch.observer/filing/0001477932-25-003515.json
- Plain text: https://secwatch.observer/filing/0001477932-25-003515.txt

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