---
schema_version: "secwatch.filing_event.v1"
accession: "0001109357-21-000090"
form_type: "8-K"
ticker: "EXC"
cik: "0001109357"
company_name: "EXELON CORP"
filed_at: "2021-10-01T23:59:59+00:00"
generated_at: "2026-06-28T23:45:58.994338+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Exelon names Dominguez CEO of Generation/Constellation; Butler interim CEO of ComEd

## Summary
- Joseph Dominguez steps down as ComEd CEO, becomes CEO of Exelon Generation and incoming CEO of Constellation.
- Calvin Butler, CEO of Exelon Utilities, appointed interim CEO of ComEd effective Oct 1, 2021.
- Daniel Eggers named CFO of Exelon Generation and incoming CFO of Constellation.
- Christopher Crane remains CEO of the regulated utility business (to be named Exelon); Joseph Nigro remains CFO.
- Separation of utility and competitive businesses remains on track for Q1 2022.

## SEC filing metadata
- accession: 0001109357-21-000090
- form_type: 8-K
- ticker: EXC
- cik: 0001109357
- company_name: EXELON CORP
- filed_at: 2021-10-01T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 5.02, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1109357/000110935721000090/0001109357-21-000090-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/22606/000110935721000090/exc-20211001.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001109357-21-000090
- JSON: https://secwatch.observer/filing/0001109357-21-000090.json
- Plain text: https://secwatch.observer/filing/0001109357-21-000090.txt

## Key facts
- Executive change
  Joseph Dominguez was appointed as Chief Executive Officer of Exelon Generation Company, LLC at EXELON CORP.
  - Action: appointed
  - Role: Chief Executive Officer of Exelon Generation Company, LLC
  source text: Joseph Dominguez, Chief Executive Officer of Commonwealth Edison Company (“ComEd”), was stepping down from his position and the board of directors of ComEd, effective immediately. Mr. Dominguez will assume the role of Chief Executive Officer of Exelon Generation Company, LLC
  evidence_url: https://www.sec.gov/Archives/edgar/data/1109357/000110935721000090/0001109357-21-000090-index.htm
- Executive change
  Calvin Butler was appointed as Chief Executive Officer of ComEd at EXELON CORP.
  - Action: appointed
  - Role: Chief Executive Officer of ComEd
  source text: Exelon and ComEd also announced that effective October 1, 2021, Calvin Butler, Chief Executive Officer of Exelon Utilities, will assume the role of Chief Executive Officer of ComEd on an interim basis until a permanent replacement is announced.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1109357/000110935721000090/0001109357-21-000090-index.htm

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