---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-23-021618"
form_type: "8-K"
ticker: "VST"
cik: "0001692819"
company_name: "Vistra Corp."
filed_at: "2023-02-01T23:59:59+00:00"
generated_at: "2026-06-20T03:56:01.955741+00:00"
event_type: "leadership"
sentiment: "positive"
materiality_score: 0.3
calibrated_materiality_score: 0.3
confidence: "high"
source: SEC EDGAR
---

# Vistra appoints Julie Lagacy as independent director, expanding board to 11 members

## Summary
- Board expanded from 10 to 11 members; Lagacy appointed independent director effective Feb. 1, 2023.
- Lagacy served as Chief Sustainability and Strategy Officer at Caterpillar until Jan. 2023; brings ESG and cybersecurity expertise.
- She will serve on the Sustainability & Risk Committee and the Social Responsibility & Compensation Committee.
- Director compensation: $100k annual cash retainer, $10k per committee, $160k annual RSU grant.
- Lagacy holds a Certificate in Cybersecurity Oversight from Carnegie Mellon University.

## SEC filing metadata
- accession: 0001193125-23-021618
- form_type: 8-K
- ticker: VST
- cik: 0001692819
- company_name: Vistra Corp.
- filed_at: 2023-02-01T23:59:59+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/1692819/000119312523021618/0001193125-23-021618-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1692819/000119312523021618/d415684d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-23-021618
- JSON: https://secwatch.observer/filing/0001193125-23-021618.json
- Plain text: https://secwatch.observer/filing/0001193125-23-021618.txt

## Key facts
- Executive change
  Julie Lagacy was elected as Director at Vistra Corp..
  - Action: elected
  - Role: Director
  source text: the Board increased the size of the Board from 10 members to 11 members and elected Julie Lagacy to the Board, effective immediately.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1692819/000119312523021618/0001193125-23-021618-index.htm

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