---
schema_version: "secwatch.filing_event.v1"
accession: "0001477932-21-006800"
form_type: "8-K"
ticker: "LTBR"
cik: "0001084554"
company_name: "LIGHTBRIDGE Corp"
filed_at: "2021-09-28T23:59:59+00:00"
generated_at: "2026-06-29T00:53:20.066122+00:00"
event_type: "leadership"
sentiment: "positive"
materiality_score: 0.3
calibrated_materiality_score: 0.3
confidence: "high"
source: SEC EDGAR
---

# Lightbridge appoints two independent directors, forms ESG committee

## Summary
- Appointed Dr. Sweta Chakraborty and Mark Tobin as independent directors effective Sept. 27, 2021.
- Chakraborty chairs new ESG Committee; Tobin chairs Compensation Committee.
- Chakraborty is a risk scientist advising governments on climate and COVID-19 risks.
- Tobin has over 24 years of finance/strategy experience including Roth Capital (nuclear coverage).

## SEC filing metadata
- accession: 0001477932-21-006800
- form_type: 8-K
- ticker: LTBR
- cik: 0001084554
- company_name: LIGHTBRIDGE Corp
- filed_at: 2021-09-28T23:59:59+00:00
- event_type: leadership
- sentiment: positive
- materiality_score: 0.3
- calibrated_materiality_score: 0.3
- confidence: high
- sec_items: 5.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1084554/000147793221006800/0001477932-21-006800-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1084554/000147793221006800/ltbr_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001477932-21-006800
- JSON: https://secwatch.observer/filing/0001477932-21-006800.json
- Plain text: https://secwatch.observer/filing/0001477932-21-006800.txt

## Key facts
- Executive change
  Mark Tobin was appointed as Director at LIGHTBRIDGE Corp.
  - Action: appointed
  - Role: Director
  source text: On September 27, 2021, the Board of Directors (the “Board”) of Lightbridge Corporation (the “Company”) appointed Dr. Sweta Chakraborty and Mr. Mark Tobin as members of the Board.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1084554/000147793221006800/0001477932-21-006800-index.htm
- Executive change
  Dr. Sweta Chakraborty was appointed as Director at LIGHTBRIDGE Corp.
  - Action: appointed
  - Role: Director
  source text: On September 27, 2021, the Board of Directors (the “Board”) of Lightbridge Corporation (the “Company”) appointed Dr. Sweta Chakraborty and Mr. Mark Tobin as members of the Board.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1084554/000147793221006800/0001477932-21-006800-index.htm

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