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401k Sponsoring company profile

CONSTELLATION ENERGY GENERATION LLC has sponsored the creation of one or more 401k plans.

Company Name:CONSTELLATION ENERGY GENERATION LLC
Employer identification number (EIN):233064219
NAIC Classification:221100

The following addresses have been detected on the 401k submissions:

USA Location Address
PO BOX A3944
CHICAGO
IL
60690
Date first seen: 2007-01-01
Date last seen: 2025-08-31
USA Location Address
200 EXELON WAY
KENNETT SQUARE
PA
19348
Date first seen: 2008-07-01
Date last seen: 2025-06-30
USA Mailing Address
200 ENERGY WAY
KENNETT SQUARE
PA
19348
Date first seen: 2008-07-01
Date last seen: 2025-12-04
USA Mailing Address
200 EXELON WAY
KENNETT SQUARE
PA
19348
Date first seen: 2008-07-01
Date last seen: 2025-11-22
USA Mailing Address
PO BOX A3944
CHICAGO
IL
60690
Date first seen: 2007-01-01
Date last seen: 2025-09-16
401k Sponsor USA Address
200 ENERGY WAY
KENNETT SQUARE
PA
19348
Date first seen: 2008-07-01
Date last seen: 2025-09-10

Plan Sponsor Events

Sponsoring Company Events

DateDescription
2022-10-13233064219 Change of name detected from EXELON CORPORATION to CONSTELLATION ENERGY GENERATION LLC
2022-10-13233064219 Change of plan name detected from EXELON NEW ENGLAND UNION EMLOYEES PENSION PLAN to EXELON NEW ENGLAND UNION EMPLOYEES PENSION PLAN for plan ID 005

CONSTELLATION ENERGY GENERATION LLC 401k Plans

Plan id# Plan Name Plan Start Date Plan Effective Date
005EXELON NEW ENGLAND UNION EMPLOYEES PENSION PLAN2021-01-01 1998-05-16
018PENSION PLAN OF CONSTELLATION ENERGY NUCLEAR GROUP, LLC2009-11-06 2009-11-06
021NINE MILE POINT PENSION PLAN2001-11-07 2001-11-07
013EXELON EMPLOYEE PENSION PLAN FOR CLINTON, TMI, AND OYSTER CREEK2000-01-01 2000-01-01
507CONSTELLATION DISABILITY BENEFIT PLAN2022-02-01 2022-02-01
509CONSTELLATION NEW ENGLAND UNION POST-EMPLOYMENT MEDICAL SAVINGS ACCOUNT PLAN2001-01-01 2001-01-01
510CONSTELLATION GROUP LEGAL PLAN2022-02-01 2022-02-01
517RETIREE MEDICAL PLAN OF CONSTELLATION ENERGY NUCLEAR GROUP, LLC2022-02-01 2022-02-01
518RETIREE DENTAL PLAN OF CONSTELLATION ENERGY NUCLEAR GROUP, LLC2022-02-01 2022-02-01
514CONSTELLATION HOME PRODUCTS AND SERVICES, LLC SEVERANCE PLAN2012-11-01 2012-11-01
515NINE MILE POINT NUCLEAR STATION, DISABILITY RETIREMENT AND SEPARATION ALLOWANCE PLAN2001-11-07 2001-11-07
516NINE MILE POINT NUCLEAR STATION, LLC MEDICAL CARE AND PRESCRIPTION DRUG PLAN FOR RETIRED EMPLOYEES2001-11-07 2001-11-07
512CONSTELLATION ENERGY GROUP, INC. RETIREE MEDICAL PLAN2022-02-01 2022-02-01
513CONSTELLATION ENERGY GROUP, INC. RETIREE DENTAL PLAN2022-02-01 2022-02-01
521CONSTELLATION PEPCO HOLDINGS, INC. WELFARE PLAN FOR RETIREES2022-02-01 2022-02-01
502CONSTELLATION SEVERANCE BENEFIT PLAN2022-02-01 2022-02-01
503CONSTELLATION FLEXIBLE BENEFITS PROGRAM2022-02-01 2022-02-01
506CONSTELLATION SUPPLEMENTAL DISABILITY BENEFIT PLAN2022-02-01 2022-02-01
312CONSTELLATION PENSION MASTER TRUST - LEGACY REAL ESTATE2022-02-01 2022-02-01
315CONSTELLATION PENSION MASTER TRUST - TRADITIONAL LIABILITY HEDGE FIXED INCOME2022-02-01 2022-02-01
307CONSTELLATION PENSION MASTER TRUST - LIQUID REAL ESTATE2022-02-01 2022-02-01
301CONSTELLATION PENSION MASTER TRUST - CASH BALANCE LIABILITY HEDGE FIXED INCOME SECURITIZED2022-02-01 2022-02-01
504CONSTELLATION LONG-TERM DISABILITY BENEFIT PLAN2022-02-01 2022-02-01
302CONSTELLATION PENSION MASTER TRUST - CASH2022-02-01 2022-02-01
306CONSTELLATION PENSION MASTER TRUST - INTERMEDIATE CREDIT2022-02-01 2022-02-01
310CONSTELLATION PENSION MASTER TRUST - PRIVATE EQUITY LEGACY2022-02-01 2022-02-01
303CONSTELLATION PENSION MASTER TRUST - CENG2022-02-01 2022-02-01
304CONSTELLATION PENSION MASTER TRUST - COMED - PECO SAF2022-02-01 2022-02-01
314CONSTELLATION PENSION MASTER TRUST - RETURN GENERATING FIXED INCOME2022-02-01 2022-02-01
305CONSTELLATION PENSION MASTER TRUST - EQUITY2022-02-01 2022-02-01
311CONSTELLATION PENSION MASTER TRUST - PRIVATE EQUITY NEW2022-02-01 2023-01-01
006CONSTELLATION EMPLOYEE SAVINGS PLAN2022-02-01 2022-02-01
309CONSTELLATION PENSION MASTER TRUST - PRIVATE CREDIT2022-02-01 2023-01-01
308CONSTELLATION PENSION MASTER TRUST - NON DIRECTIONAL2022-02-01 2023-01-01
519CONSTELLATION HEALTH REIMBURSEMENT ARRANGEMENT PLAN2022-02-01 2022-02-01
001CONSTELLATION RETIREMENT PROGRAM2022-02-01 2022-02-01
002CONSTELLATION CASH BALANCE PENSION PLAN FOR BARGAINING UNIT EMPLOYEES2022-02-01 2022-02-01
501CONSTELLATION HEALTH CARE PROGRAM2022-02-01 2022-02-01
313CONSTELLATION PENSION MASTER TRUST - REAL ESTATE NEW2022-02-01 2023-01-01
508CONSTELLATION PECO ENERGY COMPANY RETIREE MEDICAL PLAN2022-02-01 2022-02-01
505CONSTELLATION EMPLOYEES' LIFE INSURANCE PLAN2022-02-01 2022-02-01

401k Contributions

Contributions made to the plan for the plan year by employer(s) and employees. Schedule SB Part 4 Question 18. This is signed by an actuary:

DateType of contributionContribution Number of participants/employees Average contribution per participant
2023-07-14Employer Contributions $ 100,000 1846 $ 54
2023-07-14Employee Contributions $ 100,000 1846 $ 54
2022-02-09Employer Contributions $ 65,449,605 1 $ 65,449,605
2022-02-09Employee Contributions $ 65,449,605 1 $ 65,449,605

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