---
schema_version: "secwatch.filing_event.v1"
accession: "0001477932-26-002579"
form_type: "8-K"
ticker: "LTBR"
cik: "0001084554"
company_name: "LIGHTBRIDGE Corp"
filed_at: "2026-04-27T23:59:59+00:00"
generated_at: "2026-05-15T03:42:59.037937+00:00"
event_type: "earnings"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Lightbridge Q1 2026 net loss widens to $6.3M; cash balance rises to $215.7M

## Summary
- Net loss $6.3M in Q1 2026, up from $4.8M in Q1 2025; R&D expenses doubled to $3.3M.
- Cash and cash equivalents $215.7M at March 31, 2026, vs $201.9M at Dec 31, 2025.
- Received patent allowances from Canada, US, and European Patent Office for Lightbridge Fuel.
- Entered engineering contract with Stern Laboratories for thermal-hydraulics tests to support NRC licensing.
- Selected for Industry Advisory Board of $6M DOE-funded research at Penn State.

## SEC filing metadata
- accession: 0001477932-26-002579
- form_type: 8-K
- ticker: LTBR
- cik: 0001084554
- company_name: LIGHTBRIDGE Corp
- filed_at: 2026-04-27T23:59:59+00:00
- event_type: earnings
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1084554/000147793226002579/0001477932-26-002579-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1084554/000147793226002579/ltbr_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001477932-26-002579
- JSON: https://secwatch.observer/filing/0001477932-26-002579.json
- Plain text: https://secwatch.observer/filing/0001477932-26-002579.txt

## Key facts
- Earnings Releases
  LIGHTBRIDGE Corp reported the quarter ended March 31, 2026 results: net income $6.3 million.
  - Period: the quarter ended March 31, 2026
  - Net income: $6.3 million
  - Result: reported results
  source text: Net loss was $6.3 million for the quarter ended March 31, 2026, compared to $4.8 million for the quarter ended March 31, 2025.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1084554/000147793226002579/0001477932-26-002579-index.htm

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