Constellation Energy CEG
Constellation Energy is the 135th largest S&P 500 company by market cap, worth $89.8 billion. 12 directors have filed with the SEC in the last 12 months (who counts), 1 of them an executive. 9 other officers are on file. At 30 Jun 2026, Vanguard was its largest institutional holder, with 11.1% of the company.
- CEO
- Joseph Dominguez
- Sector
- Utilities
- Sub-industry
- Electric Utilities
- Headquarters
- Baltimore, Maryland
- Founded
- 1999
- More
- Wikipedia
- Market cap
- $89.8B
- 135th largest, 23 Oct 2026 close
- Price to sales
- 3.5
- Market cap over revenue
- Market cap per employee
- $5.9M
- Market cap over employees
- Connections
- 4
- S&P 500 companies sharing a director or officer
Largest institutional holders
Each fund group's share of Constellation Energy. Where a company has several share classes, the share is of its total value.
13F filings for the quarter to 30 Jun 2026
Board and officers
4 people here also hold roles at other S&P 500 companies.
Roles filed up to 30 Sep 2026
| Name | Title |
|---|---|
| Directors (12) | |
| Joseph DominguezPresident & CEOLast filed 11 Feb 2026 | |
| Khandpur K. AshishDirector | |
| Yves C. de BalmannDirector | |
| Roger W. CrandallDirector | |
| Bradley M. HalversonDirectorAlso at Sysco | |
| Charles L. HarringtonDirector | |
| Julie HolzrichterDirector | |
| Dhiaa M. JamilDirector | |
| Peter OppenheimerDirectorAlso at Goldman SachsLast filed 5 Jan 2026 | |
| Eileen P. PatersonDirectorAlso at Marathon Petroleum | |
| John M. RichardsonDirectorAlso at Boeing | |
| Nneka Louise RimmerDirector | |
| Officers (9) | |
| Daniel L. EggersEVP & CFOLast filed 11 Feb 2026 | |
| Shane Patrick SmithEVP & Chief Financial OfficerLast filed 11 Feb 2026 | |
| Kathleen BarronEVP & Chief Strategy OfficerLast filed 31 Oct 2025 | |
| Matthew N. BauerSVP & ControllerLast filed 11 Feb 2026 | |
| David O. DardisEVP & General CounselLast filed 11 Feb 2026 | |
| Bryan Craig HansonEVP & Chief Generation OfficerLast filed 11 Feb 2026 | |
| Michael KoehlerEVP & Chief Admin OfficerLast filed 2 Mar 2026 | |
| James McHughEVP & Chief Commercial OfficerLast filed 11 Feb 2026 | |
| Andrew R. NovotnySenior Executive Vice President, Constellation Power Operations, and President and CEO of CalpineLast filed 11 Feb 2026 | |
Companies that share people with Constellation Energy
Each person's title here, then at the other company.
- Boeing BA
- John M. Richardson: Director here, Director there
- Goldman Sachs GS
- Peter Oppenheimer: Director here, Director there
- Marathon Petroleum MPC
- Eileen P. Paterson: Director here, Director there
- Sysco SYY
- Bradley M. Halverson: Director here, Director there
Constellation Energy's market cap since February 2022
Marked weeks are changes in the share count, such as a merger, not market moves.
Weekly, up to 23 Oct 2026
| Week ending | Market cap |
|---|---|
| 23 Oct 2026 | $89.8B |
| 26 Dec 2025 | $113B |
| 27 Dec 2024 | $70.8B |
| 29 Dec 2023 | $37.3B |
| 30 Dec 2022 | $28.2B |
Download Constellation Energy's data as JSON, with the weekly market caps in billions of dollars from 4 Feb 2022.
Workforce
Headcount at 31 Dec 2025
- Employees
- 15,339
The following table shows total number of employees, management, and executives as of December 31, 2025: … Total Employees 15,339
Insider trades
Open-market buys and sales by directors and officers. Grants, option exercises and shares withheld for tax are left out.
Trades from 30 Sep 2025 to 30 Sep 2026
Directors and officers made no open-market sales and bought $417,930 in 1 purchase in the 12 months to 30 Sep 2026.
| Date | Person | Value |
|---|---|---|
| 11 Aug 2026Buy | Roger W. CrandallDirector | $418K |
Trades by members of Congress and officials
Trades members of Congress and senior executive branch officials disclosed, including their families'. Amounts are filed as ranges.
Trades from 20 Oct 2023 to 20 Oct 2026
7 people disclosed 11 purchases and 10 sales of Constellation Energy stock since October 2023.
| Date | Member or official | Amount |
|---|---|---|
| 13 Aug 2026 | John BoozmanSenate, R-AR · Sold | $1K to $15K |
| 20 Jul 2026 | Rohit KhannaHouse, D-CA · Bought | $1K to $15K |
| 18 Jun 2026 | Donald J TrumpPresident · Sold | $50K to $100K |
| 17 Apr 2026 | Shelley M CapitoSenate, R-WV · Sold | $1K to $15K |
| 13 Apr 2026 | Rohit KhannaHouse, D-CA · Bought | $1K to $15K |
| 2 Apr 2026 | John BoozmanSenate, R-AR · Bought | $1K to $15K |
| 29 Jan 2026 | Rohit KhannaHouse, D-CA · Sold | $1K to $15K |
| 31 Oct 2025 | Lisa McClainHouse, R-MI · Sold | $1K to $15K |
| 30 Oct 2025 | Lisa McClainHouse, R-MI · Bought | $1K to $15K |
| 30 Oct 2025 | Lisa McClainHouse, R-MI · Sold | $1K to $15K |
Showing 10 of 21 trades
Not on file: no WARN layoff notices under its own name since October 2023.