EXC

SEC source: 0001062993-22-000882 · form4.xml · derivative · entry 5

Souza Fabian · CIK 0001644567 · SVP & Controller

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,421

Underlying: Common Stock · 1,710 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · price: Vesting of previously granted restricted stock unit (RSU) awarded under Exelon Long Term Incentive Plan. Awards granted annually to vest in 1/3 increments at the January or February meetings of the Compensation Committee with each RSU representing the right to receive one share of Exelon common stock upon vesting. RSUs accrue quarterly dividend equivalents in the form of additional RSUs representing common stock dividends as approved by the Board, which vest on the same schedule as the underlying RSU award.

F2 · derivative.exercise_date: Vesting of previously granted restricted stock unit (RSU) awarded under Exelon Long Term Incentive Plan. Awards granted annually to vest in 1/3 increments at the January or February meetings of the Compensation Committee with each RSU representing the right to receive one share of Exelon common stock upon vesting. RSUs accrue quarterly dividend equivalents in the form of additional RSUs representing common stock dividends as approved by the Board, which vest on the same schedule as the underlying RSU award.

F2 · derivative.expiration_date: Vesting of previously granted restricted stock unit (RSU) awarded under Exelon Long Term Incentive Plan. Awards granted annually to vest in 1/3 increments at the January or February meetings of the Compensation Committee with each RSU representing the right to receive one share of Exelon common stock upon vesting. RSUs accrue quarterly dividend equivalents in the form of additional RSUs representing common stock dividends as approved by the Board, which vest on the same schedule as the underlying RSU award.

F5 · balance_after: The RSU award accrued 160 additional shares during 2021 through automatic dividend reinvestment.

SEC source: 0001062993-22-000882 · form4.xml · derivative · entry 4

Souza Fabian · CIK 0001644567 · SVP & Controller

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,630

Underlying: Common Stock · 1,630 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · price: Vesting of previously granted restricted stock unit (RSU) awarded under Exelon Long Term Incentive Plan. Awards granted annually to vest in 1/3 increments at the January or February meetings of the Compensation Committee with each RSU representing the right to receive one share of Exelon common stock upon vesting. RSUs accrue quarterly dividend equivalents in the form of additional RSUs representing common stock dividends as approved by the Board, which vest on the same schedule as the underlying RSU award.

F2 · derivative.exercise_date: Vesting of previously granted restricted stock unit (RSU) awarded under Exelon Long Term Incentive Plan. Awards granted annually to vest in 1/3 increments at the January or February meetings of the Compensation Committee with each RSU representing the right to receive one share of Exelon common stock upon vesting. RSUs accrue quarterly dividend equivalents in the form of additional RSUs representing common stock dividends as approved by the Board, which vest on the same schedule as the underlying RSU award.

F2 · derivative.expiration_date: Vesting of previously granted restricted stock unit (RSU) awarded under Exelon Long Term Incentive Plan. Awards granted annually to vest in 1/3 increments at the January or February meetings of the Compensation Committee with each RSU representing the right to receive one share of Exelon common stock upon vesting. RSUs accrue quarterly dividend equivalents in the form of additional RSUs representing common stock dividends as approved by the Board, which vest on the same schedule as the underlying RSU award.

F4 · balance_after: The RSU award accrued 102 additional shares during 2021 through automatic dividend reinvestment.

SEC source: 0001062993-22-000882 · form4.xml · derivative · entry 3

Souza Fabian · CIK 0001644567 · SVP & Controller

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 1,679 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · price: Vesting of previously granted restricted stock unit (RSU) awarded under Exelon Long Term Incentive Plan. Awards granted annually to vest in 1/3 increments at the January or February meetings of the Compensation Committee with each RSU representing the right to receive one share of Exelon common stock upon vesting. RSUs accrue quarterly dividend equivalents in the form of additional RSUs representing common stock dividends as approved by the Board, which vest on the same schedule as the underlying RSU award.

F2 · derivative.exercise_date: Vesting of previously granted restricted stock unit (RSU) awarded under Exelon Long Term Incentive Plan. Awards granted annually to vest in 1/3 increments at the January or February meetings of the Compensation Committee with each RSU representing the right to receive one share of Exelon common stock upon vesting. RSUs accrue quarterly dividend equivalents in the form of additional RSUs representing common stock dividends as approved by the Board, which vest on the same schedule as the underlying RSU award.

F2 · derivative.expiration_date: Vesting of previously granted restricted stock unit (RSU) awarded under Exelon Long Term Incentive Plan. Awards granted annually to vest in 1/3 increments at the January or February meetings of the Compensation Committee with each RSU representing the right to receive one share of Exelon common stock upon vesting. RSUs accrue quarterly dividend equivalents in the form of additional RSUs representing common stock dividends as approved by the Board, which vest on the same schedule as the underlying RSU award.

F3 · balance_after: The RSU award accrued 52 additional shares during 2021 through automatic dividend reinvestment.

SEC source: 0001062993-22-000882 · form4.xml · nonDerivative · entry 2

Souza Fabian · CIK 0001644567 · SVP & Controller

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 23,737

SEC source: 0001062993-22-000882 · form4.xml · nonDerivative · entry 1

Souza Fabian · CIK 0001644567 · SVP & Controller

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 25,538

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Common shares acquired through conversion of previously awarded and vested restricted stock units (RSUs) under the Exelon Long Term Incentive Plan.

SEC source: 0001062993-22-000058 · form4.xml · nonDerivative · entry 1

SHATTUCK MAYO A III · CIK 0001087426 · Director · Chairman of the Board

10b5-1 filing: Not disclosed

Ownership: Indirect · By Exelon Directors Deferred Stock Unit Plan

Disclosed balance after: 34,922

F1 · balance_after: Balance includes 241 shares acquired on December 10, 2021 through automatic dividend reinvestment.

SEC source: 0001062993-22-000060 · form4.xml · nonDerivative · entry 1

GUTIERREZ CARLOS M · CIK 0001185943 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Exelon Director's Deferred Stock Unit Plan

Disclosed balance after: 531

SEC source: 0001062993-22-000057 · form4.xml · nonDerivative · entry 1

Richardson John M · CIK 0001786800 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Exelon Directors' Deferred Stock Unit Plan

Disclosed balance after: 8,522

F1 · balance_after: Balance includes 55 shares acquired on December 10, 2021 through automatic dividend reinvestment.

SEC source: 0001062993-22-000059 · form4.xml · nonDerivative · entry 1

YOUNG JOHN F · CIK 0001230766 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Exelon Directors' Deferred Stock Unit Plan

Disclosed balance after: 12,526

F1 · balance_after: Balance includes 83 shares acquired on December 10, 2021 through automatic dividend reinvestment.

SEC source: 0001062993-22-000056 · form4.xml · derivative · entry 4

LAWLESS ROBERT J · CIK 0001164638 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 38,590

Underlying: Common Stock · 801 shares

Expires not disclosed

F3 · derivative.exercise_price: Phantom share equivalents acquired in the reporting person's Exelon stock fund account that is part of a multi-fund, non-qualified deferred compensation plan and that will be settled in cash on a 1 for 1 basis upon the termination of the reporting person's service. Balance also reflects 259 shares equivalents accrued on November 12, 2021 through automatic dividend reinvestment.

F3 · derivative.exercise_date: Phantom share equivalents acquired in the reporting person's Exelon stock fund account that is part of a multi-fund, non-qualified deferred compensation plan and that will be settled in cash on a 1 for 1 basis upon the termination of the reporting person's service. Balance also reflects 259 shares equivalents accrued on November 12, 2021 through automatic dividend reinvestment.

F3 · derivative.expiration_date: Phantom share equivalents acquired in the reporting person's Exelon stock fund account that is part of a multi-fund, non-qualified deferred compensation plan and that will be settled in cash on a 1 for 1 basis upon the termination of the reporting person's service. Balance also reflects 259 shares equivalents accrued on November 12, 2021 through automatic dividend reinvestment.

F3 · balance_after: Phantom share equivalents acquired in the reporting person's Exelon stock fund account that is part of a multi-fund, non-qualified deferred compensation plan and that will be settled in cash on a 1 for 1 basis upon the termination of the reporting person's service. Balance also reflects 259 shares equivalents accrued on November 12, 2021 through automatic dividend reinvestment.

SEC source: 0001062993-22-000056 · form4.xml · nonDerivative · entry 1

LAWLESS ROBERT J · CIK 0001164638 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Exelon Directors' Deferred Stock Unit Plan

Disclosed balance after: 38,933

F1 · balance_after: Balance includes 269 shares acquired on December 10, 2021 through automatic dividend reinvestment.

SEC source: 0001062993-22-000055 · form4.xml · nonDerivative · entry 1

JOSKOW PAUL L · CIK 0001196502 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Exelon Directors' Deferred Stock Unit Plan

Disclosed balance after: 53,528

F1 · balance_after: Balance includes 372 shares acquired on December 10, 2021 through automatic dividend reinvestment.

SEC source: 0001062993-22-000054 · form4.xml · nonDerivative · entry 1

Jojo Linda P · CIK 0001296796 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Exelon Directors' Deferred Stock Unit Plan

Disclosed balance after: 24,777

F1 · balance_after: Balance includes 169 shares acquired on December 10, 2021 through automatic dividend reinvestment.

SEC source: 0001062993-22-000053 · form4.xml · nonDerivative · entry 1

DE BALMANN YVES C · CIK 0001257061 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Exelon Directors' Deferred Stock Unit Plan

Disclosed balance after: 38,933

F1 · balance_after: Balance includes 269 shares acquired on December 10, 2021 through automatic dividend reinvestment.

SEC source: 0001062993-22-000052 · form4.xml · derivative · entry 2

Cheshire Marjorie Rodgers · CIK 0001621713 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,661

Underlying: Common Stock · 251 shares

Expires not disclosed

F2 · derivative.exercise_price: Phantom share equivalents in the reporting person's Exelon stock fund account that is part of a multi-fund, non-qualified deferred compensation plan and that will be settled in cash on a 1 for 1 basis upon the termination of the reporting person's service. Balance also reflects 10 share equivalents accrued on November 12, 2021 through automatic dividend reinvestment.

F2 · derivative.exercise_date: Phantom share equivalents in the reporting person's Exelon stock fund account that is part of a multi-fund, non-qualified deferred compensation plan and that will be settled in cash on a 1 for 1 basis upon the termination of the reporting person's service. Balance also reflects 10 share equivalents accrued on November 12, 2021 through automatic dividend reinvestment.

F2 · derivative.expiration_date: Phantom share equivalents in the reporting person's Exelon stock fund account that is part of a multi-fund, non-qualified deferred compensation plan and that will be settled in cash on a 1 for 1 basis upon the termination of the reporting person's service. Balance also reflects 10 share equivalents accrued on November 12, 2021 through automatic dividend reinvestment.

F2 · derivative.underlying_shares: Phantom share equivalents in the reporting person's Exelon stock fund account that is part of a multi-fund, non-qualified deferred compensation plan and that will be settled in cash on a 1 for 1 basis upon the termination of the reporting person's service. Balance also reflects 10 share equivalents accrued on November 12, 2021 through automatic dividend reinvestment.

F2 · balance_after: Phantom share equivalents in the reporting person's Exelon stock fund account that is part of a multi-fund, non-qualified deferred compensation plan and that will be settled in cash on a 1 for 1 basis upon the termination of the reporting person's service. Balance also reflects 10 share equivalents accrued on November 12, 2021 through automatic dividend reinvestment.

SEC source: 0001062993-22-000052 · form4.xml · nonDerivative · entry 1

Cheshire Marjorie Rodgers · CIK 0001621713 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Exelon Directors' Deferred Stock Unit Plan

Disclosed balance after: 5,023

F1 · balance_after: Balance includes 30 shares acquired on December 10, 2021 through automatic dividend reinvestment.

SEC source: 0001062993-22-000051 · form4.xml · nonDerivative · entry 1

BRLAS LAURIE · CIK 0001235612 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Exelon Directors' Deferred Stock Unit Plan

Disclosed balance after: 11,700

F1 · balance_after: Balance includes 77 shares acquired on December 10, 2021 through automatic dividend reinvestment.

SEC source: 0001062993-22-000050 · form4.xml · nonDerivative · entry 1

BOWERS WILLIAM P · CIK 0001225760 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Exelon Directors Deferred Stock Unit Plan

Disclosed balance after: 1,280

F1 · balance_after: Balance includes 4 shares acquired on December 10, 2021 through automatic dividend reinvestment.

SEC source: 0001062993-22-000049 · form4.xml · derivative · entry 3

BERZIN ANN C · CIK 0001215820 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 39,105

Underlying: Common Stock · 656 shares

Expires not disclosed

F3 · derivative.exercise_price: Phantom share equivalents acquired in the reporting person's Exelon stock fund account that is part of a multi-fund, non-qualified deferred compensation plan and that will be settled in cash on a 1 for 1 basis upon the termination of the reporting person's service. Balance also reflects 263 share equivalents accrued on November 12, 2021 through automatic dividend reinvestment.

F3 · derivative.exercise_date: Phantom share equivalents acquired in the reporting person's Exelon stock fund account that is part of a multi-fund, non-qualified deferred compensation plan and that will be settled in cash on a 1 for 1 basis upon the termination of the reporting person's service. Balance also reflects 263 share equivalents accrued on November 12, 2021 through automatic dividend reinvestment.

F3 · derivative.expiration_date: Phantom share equivalents acquired in the reporting person's Exelon stock fund account that is part of a multi-fund, non-qualified deferred compensation plan and that will be settled in cash on a 1 for 1 basis upon the termination of the reporting person's service. Balance also reflects 263 share equivalents accrued on November 12, 2021 through automatic dividend reinvestment.

F3 · balance_after: Phantom share equivalents acquired in the reporting person's Exelon stock fund account that is part of a multi-fund, non-qualified deferred compensation plan and that will be settled in cash on a 1 for 1 basis upon the termination of the reporting person's service. Balance also reflects 263 share equivalents accrued on November 12, 2021 through automatic dividend reinvestment.

SEC source: 0001062993-22-000049 · form4.xml · nonDerivative · entry 1

BERZIN ANN C · CIK 0001215820 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Exelon Directors' Deferred Stock Unit Plan

Disclosed balance after: 38,933

F1 · balance_after: Balance includes 269 shares acquired on December 10, 2021 through automatic dividend reinvestment.

SEC source: 0001062993-22-000047 · form4.xml · nonDerivative · entry 1

Anderson Anthony · CIK 0001559294 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Exelon Directors' Deferred Stock Unit Plan

Disclosed balance after: 35,252

F1 · balance_after: Balance includes 243 shares acquired on December 10, 2021 through automatic dividend reinvestment.

SEC source: 0001062993-21-013012 · form4.xml · derivative · entry 1

MCHUGH JAMES · CIK 0001897905 · EVP & Chief Commercial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,213

Underlying: Common Stock · 40 shares

Expires not disclosed

F1 · derivative.exercise_price: Phantom share equivalents representing units held in the Exelon stock fund in a multi-fund, non-qualified deferred compensation plan. The Exelon stock fund is a unitized fund that consists of Exelon common stock and short term investments. Units of the fund will be settled upon the reporting person's separation from the company for any reason. Units will be settled in cash. Units are acquired through regular periodic contributions, company matching contributions and the reinvestment of dividend equivalents. The balance of phantom share equivalents may fluctuate due to periodic changes in the fund composition.

F1 · derivative.exercise_date: Phantom share equivalents representing units held in the Exelon stock fund in a multi-fund, non-qualified deferred compensation plan. The Exelon stock fund is a unitized fund that consists of Exelon common stock and short term investments. Units of the fund will be settled upon the reporting person's separation from the company for any reason. Units will be settled in cash. Units are acquired through regular periodic contributions, company matching contributions and the reinvestment of dividend equivalents. The balance of phantom share equivalents may fluctuate due to periodic changes in the fund composition.

F1 · derivative.expiration_date: Phantom share equivalents representing units held in the Exelon stock fund in a multi-fund, non-qualified deferred compensation plan. The Exelon stock fund is a unitized fund that consists of Exelon common stock and short term investments. Units of the fund will be settled upon the reporting person's separation from the company for any reason. Units will be settled in cash. Units are acquired through regular periodic contributions, company matching contributions and the reinvestment of dividend equivalents. The balance of phantom share equivalents may fluctuate due to periodic changes in the fund composition.

F1 · balance_after: Phantom share equivalents representing units held in the Exelon stock fund in a multi-fund, non-qualified deferred compensation plan. The Exelon stock fund is a unitized fund that consists of Exelon common stock and short term investments. Units of the fund will be settled upon the reporting person's separation from the company for any reason. Units will be settled in cash. Units are acquired through regular periodic contributions, company matching contributions and the reinvestment of dividend equivalents. The balance of phantom share equivalents may fluctuate due to periodic changes in the fund composition.

SEC source: 0001062993-21-011682 · form4.xml · derivative · entry 3

Dominguez Joseph · CIK 0001495634 · CEO, Exelon Generation

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 16,000 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: Exercise and sale made pursuant to a Rule 10b5-1 trading plan entered into by Mr. Dominguez on November 10, 2021.

F3 · price: Fully vested non-qualified stock option granted pursuant to the Exelon Long-Term Incentive Plan. Option award will expire on the 10th anniversary of the grant date referenced in column 1.

F3 · derivative.exercise_date: Fully vested non-qualified stock option granted pursuant to the Exelon Long-Term Incentive Plan. Option award will expire on the 10th anniversary of the grant date referenced in column 1.

F3 · derivative.expiration_date: Fully vested non-qualified stock option granted pursuant to the Exelon Long-Term Incentive Plan. Option award will expire on the 10th anniversary of the grant date referenced in column 1.

SEC source: 0001062993-21-011682 · form4.xml · nonDerivative · entry 2

Dominguez Joseph · CIK 0001495634 · CEO, Exelon Generation

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 20,821

F1 · kind: Exercise and sale made pursuant to a Rule 10b5-1 trading plan entered into by Mr. Dominguez on November 10, 2021.

F2 · price: Shares sold in individual lots with prices ranging from $54.01 to $54.64 inclusive. Mr. Dominguez undertakes to provide to Exelon Corporation, any security holder of Exelon Corporation or the staff of the U.S. Securities and Exchange Commission full details of the number of shares sold at each individual price within the range provided above.

SEC source: 0001062993-21-011682 · form4.xml · nonDerivative · entry 1

Dominguez Joseph · CIK 0001495634 · CEO, Exelon Generation

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 36,821

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: Exercise and sale made pursuant to a Rule 10b5-1 trading plan entered into by Mr. Dominguez on November 10, 2021.

SEC source: 0001062993-21-011390 · form4.xml · derivative · entry 5

Crane Christopher M. · CIK 0001411453 · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 285,000 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: Exercise and sale of shares were made pursuant to a Rule 10b5-1 Trading Plan entered into by Mr. Crane on November 5, 2021.

F3 · price: Fully vested non-qualified stock option granted pursuant to the Exelon Long-Term Incentive Plan. Option award will expire on the 10th anniversary of the grant date referenced in column 1.

F3 · derivative.exercise_date: Fully vested non-qualified stock option granted pursuant to the Exelon Long-Term Incentive Plan. Option award will expire on the 10th anniversary of the grant date referenced in column 1.

F3 · derivative.expiration_date: Fully vested non-qualified stock option granted pursuant to the Exelon Long-Term Incentive Plan. Option award will expire on the 10th anniversary of the grant date referenced in column 1.

SEC source: 0001062993-21-011390 · form4.xml · nonDerivative · entry 2

Crane Christopher M. · CIK 0001411453 · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 489,323

F1 · kind: Exercise and sale of shares were made pursuant to a Rule 10b5-1 Trading Plan entered into by Mr. Crane on November 5, 2021.

F2 · price: Shares were sold in multiple lots with prices ranging from $53.22 to $53.79 inclusive. Mr Crane undertakes to provide to Exelon Corporation, any security holder of Exelon Corporation or the staff of the U.S. Securities and Exchange Commission, upon request, full information regarding the number of shares sold at at each separate price within the range provided above.

SEC source: 0001062993-21-011390 · form4.xml · nonDerivative · entry 1

Crane Christopher M. · CIK 0001411453 · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 774,323

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: Exercise and sale of shares were made pursuant to a Rule 10b5-1 Trading Plan entered into by Mr. Crane on November 5, 2021.

F3 · price: Fully vested non-qualified stock option granted pursuant to the Exelon Long-Term Incentive Plan. Option award will expire on the 10th anniversary of the grant date referenced in column 1.

SEC source: 0001062993-21-011391 · form4.xml · derivative · entry 3

Nigro Joseph · CIK 0001740087 · Sr. EVP & Chief Fin. Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 13,000 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: Exercise and sale of shares made pursuant to a Rule 10b5-1 Trading Plan entered into by Mr. Nigro on November 5, 2021.

F3 · price: Fully vested non-qualified stock option granted pursuant to the Exelon Long-Term Incentive Plan. Option award will expire on the 10th anniversary of the grant date referenced in column 1.

F3 · derivative.exercise_date: Fully vested non-qualified stock option granted pursuant to the Exelon Long-Term Incentive Plan. Option award will expire on the 10th anniversary of the grant date referenced in column 1.

F3 · derivative.expiration_date: Fully vested non-qualified stock option granted pursuant to the Exelon Long-Term Incentive Plan. Option award will expire on the 10th anniversary of the grant date referenced in column 1.

SEC source: 0001062993-21-011391 · form4.xml · nonDerivative · entry 2

Nigro Joseph · CIK 0001740087 · Sr. EVP & Chief Fin. Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 72,752

F1 · kind: Exercise and sale of shares made pursuant to a Rule 10b5-1 Trading Plan entered into by Mr. Nigro on November 5, 2021.

F2 · price: Shares were sold in multiple lots with prices ranging from $53.24 to $53.79 inclusive. Mr Nigro undertakes to provide to Exelon Corporation, any security holder of Exelon Corporation or the staff of the U.S. Securities and Exchange Commission, upon request, full information regarding the number of shares sold at at each separate price within the range provided above.

SEC source: 0001062993-21-011391 · form4.xml · nonDerivative · entry 1

Nigro Joseph · CIK 0001740087 · Sr. EVP & Chief Fin. Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 85,752

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: Exercise and sale of shares made pursuant to a Rule 10b5-1 Trading Plan entered into by Mr. Nigro on November 5, 2021.

F3 · price: Fully vested non-qualified stock option granted pursuant to the Exelon Long-Term Incentive Plan. Option award will expire on the 10th anniversary of the grant date referenced in column 1.

SEC source: 0001062993-21-009069 · form4.xml · nonDerivative · entry 1

SHATTUCK MAYO A III · CIK 0001087426 · Director · Chairman of the Board

10b5-1 filing: Not disclosed

Ownership: Indirect · By Exelon Directors Deferred Stock Unit Plan

Disclosed balance after: 33,962

F1 · balance_after: Balance includes 252 shares acquired on September 10, 2021 through automatic dividend reinvestment.

SEC source: 0001062993-21-009070 · form4.xml · nonDerivative · entry 1

YOUNG JOHN F · CIK 0001230766 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Exelon Directors' Deferred Stock Unit Plan

Disclosed balance after: 11,724

F1 · balance_after: Balance includes 83 shares acquired on September 10, 2021 through automatic dividend reinvestment.

SEC source: 0001062993-21-009068 · form4.xml · nonDerivative · entry 1

Richardson John M · CIK 0001786800 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Exelon Directors' Deferred Stock Unit Plan

Disclosed balance after: 7,748

F1 · balance_after: Balance includes 53 shares acquired on September 10, 2021 through automatic dividend reinvestment.

SEC source: 0001062993-21-009067 · form4.xml · derivative · entry 4

LAWLESS ROBERT J · CIK 0001164638 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 37,599

Underlying: Common Stock · 957 shares

Expires not disclosed

F3 · derivative.exercise_price: Phantom share equivalents acquired in the reporting person's Exelon stock fund account that is part of a multi-fund, non-qualified deferred compensation plan and that will be settled in cash on a 1 for 1 basis upon the termination of the reporting person's service. Balance also reflects 285 shares equivalents accrued on August 12, 2021 through automatic dividend reinvestment.

F3 · derivative.exercise_date: Phantom share equivalents acquired in the reporting person's Exelon stock fund account that is part of a multi-fund, non-qualified deferred compensation plan and that will be settled in cash on a 1 for 1 basis upon the termination of the reporting person's service. Balance also reflects 285 shares equivalents accrued on August 12, 2021 through automatic dividend reinvestment.

F3 · derivative.expiration_date: Phantom share equivalents acquired in the reporting person's Exelon stock fund account that is part of a multi-fund, non-qualified deferred compensation plan and that will be settled in cash on a 1 for 1 basis upon the termination of the reporting person's service. Balance also reflects 285 shares equivalents accrued on August 12, 2021 through automatic dividend reinvestment.

F3 · balance_after: Phantom share equivalents acquired in the reporting person's Exelon stock fund account that is part of a multi-fund, non-qualified deferred compensation plan and that will be settled in cash on a 1 for 1 basis upon the termination of the reporting person's service. Balance also reflects 285 shares equivalents accrued on August 12, 2021 through automatic dividend reinvestment.

SEC source: 0001062993-21-009067 · form4.xml · nonDerivative · entry 1

LAWLESS ROBERT J · CIK 0001164638 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Exelon Directors' Deferred Stock Unit Plan

Disclosed balance after: 37,945

F1 · balance_after: Balance includes 283 shares acquired on September 10, 2021 through automatic dividend reinvestment.

SEC source: 0001062993-21-009065 · form4.xml · nonDerivative · entry 1

Jojo Linda P · CIK 0001296796 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Exelon Directors' Deferred Stock Unit Plan

Disclosed balance after: 23,888

F1 · balance_after: Balance includes 176 shares acquired on September 10, 2021 through automatic dividend reinvestment.

SEC source: 0001062993-21-009066 · form4.xml · nonDerivative · entry 1

JOSKOW PAUL L · CIK 0001196502 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Exelon Directors' Deferred Stock Unit Plan

Disclosed balance after: 52,437

F1 · balance_after: Balance includes 393 shares acquired on September 10, 2021 through automatic dividend reinvestment.

SEC source: 0001062993-21-009064 · form4.xml · nonDerivative · entry 1

DE BALMANN YVES C · CIK 0001257061 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Exelon Directors' Deferred Stock Unit Plan

Disclosed balance after: 37,945

F1 · balance_after: Balance includes 283 shares acquired on September 10, 2021 through automatic dividend reinvestment.

SEC source: 0001062993-21-009063 · form4.xml · derivative · entry 2

Cheshire Marjorie Rodgers · CIK 0001621713 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,403

Underlying: Common Stock · 274 shares

Expires not disclosed

F2 · derivative.exercise_price: Phantom share equivalents in the reporting person's Exelon stock fund account that is part of a multi-fund, non-qualified deferred compensation plan and that will be settled in cash on a 1 for 1 basis upon the termination of the reporting person's service. Balance also reflects 9 share equivalents accrued on August 12, 2021 through automatic dividend reinvestment.

F2 · derivative.exercise_date: Phantom share equivalents in the reporting person's Exelon stock fund account that is part of a multi-fund, non-qualified deferred compensation plan and that will be settled in cash on a 1 for 1 basis upon the termination of the reporting person's service. Balance also reflects 9 share equivalents accrued on August 12, 2021 through automatic dividend reinvestment.

F2 · derivative.expiration_date: Phantom share equivalents in the reporting person's Exelon stock fund account that is part of a multi-fund, non-qualified deferred compensation plan and that will be settled in cash on a 1 for 1 basis upon the termination of the reporting person's service. Balance also reflects 9 share equivalents accrued on August 12, 2021 through automatic dividend reinvestment.

F2 · derivative.underlying_shares: Phantom share equivalents in the reporting person's Exelon stock fund account that is part of a multi-fund, non-qualified deferred compensation plan and that will be settled in cash on a 1 for 1 basis upon the termination of the reporting person's service. Balance also reflects 9 share equivalents accrued on August 12, 2021 through automatic dividend reinvestment.

F2 · balance_after: Phantom share equivalents in the reporting person's Exelon stock fund account that is part of a multi-fund, non-qualified deferred compensation plan and that will be settled in cash on a 1 for 1 basis upon the termination of the reporting person's service. Balance also reflects 9 share equivalents accrued on August 12, 2021 through automatic dividend reinvestment.

SEC source: 0001062993-21-009063 · form4.xml · nonDerivative · entry 1

Cheshire Marjorie Rodgers · CIK 0001621713 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Exelon Directors' Deferred Stock Unit Plan

Disclosed balance after: 4,274

F1 · balance_after: Balance includes 27 shares acquired on September 10, 2021 through automatic dividend reinvestment.

SEC source: 0001062993-21-009060 · form4.xml · derivative · entry 3

BERZIN ANN C · CIK 0001215820 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 38,256

Underlying: Common Stock · 817 shares

Expires not disclosed

F3 · derivative.exercise_price: Phantom share equivalents acquired in the reporting person's Exelon stock fund account that is part of a multi-fund, non-qualified deferred compensation plan and that will be settled in cash on a 1 for 1 basis upon the termination of the reporting person's service. Balance also reflects 292 share equivalents accrued on August 12, 2021 through automatic dividend reinvestment.

F3 · derivative.exercise_date: Phantom share equivalents acquired in the reporting person's Exelon stock fund account that is part of a multi-fund, non-qualified deferred compensation plan and that will be settled in cash on a 1 for 1 basis upon the termination of the reporting person's service. Balance also reflects 292 share equivalents accrued on August 12, 2021 through automatic dividend reinvestment.

F3 · derivative.expiration_date: Phantom share equivalents acquired in the reporting person's Exelon stock fund account that is part of a multi-fund, non-qualified deferred compensation plan and that will be settled in cash on a 1 for 1 basis upon the termination of the reporting person's service. Balance also reflects 292 share equivalents accrued on August 12, 2021 through automatic dividend reinvestment.

F3 · balance_after: Phantom share equivalents acquired in the reporting person's Exelon stock fund account that is part of a multi-fund, non-qualified deferred compensation plan and that will be settled in cash on a 1 for 1 basis upon the termination of the reporting person's service. Balance also reflects 292 share equivalents accrued on August 12, 2021 through automatic dividend reinvestment.

SEC source: 0001062993-21-009060 · form4.xml · nonDerivative · entry 1

BERZIN ANN C · CIK 0001215820 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Exelon Directors' Deferred Stock Unit Plan

Disclosed balance after: 37,945

F1 · balance_after: Balance includes 283 shares acquired on September 10, 2021 through automatic dividend reinvestment.

SEC source: 0001062993-21-009062 · form4.xml · nonDerivative · entry 1

BOWERS WILLIAM P · CIK 0001225760 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Exelon Directors Deferred Stock Unit Plan

Disclosed balance after: 557

SEC source: 0001062993-21-009061 · form4.xml · nonDerivative · entry 1

BRLAS LAURIE · CIK 0001235612 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Exelon Directors' Deferred Stock Unit Plan

Disclosed balance after: 10,904

F1 · balance_after: Balance includes 77 shares acquired on September 10, 2021 through automatic dividend reinvestment.

SEC source: 0001062993-21-009059 · form4.xml · nonDerivative · entry 1

Anderson Anthony · CIK 0001559294 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Exelon Directors' Deferred Stock Unit Plan

Disclosed balance after: 34,290

F1 · balance_after: Balance includes 255 shares acquired on September 10, 2021 through automatic dividend reinvestment.

SEC source: 0001062993-21-006201 · form4.xml · nonDerivative · entry 1

SHATTUCK MAYO A III · CIK 0001087426 · Director · Chairman of the Board

10b5-1 filing: Not disclosed

Ownership: Indirect · By Exelon Directors Deferred Stock Unit Plan

Disclosed balance after: 32,933

F1 · balance_after: Balance includes 261 shares acquired on June 10, 2021 through automatic dividend reinvestment.

SEC source: 0001062993-21-006202 · form4.xml · nonDerivative · entry 1

YOUNG JOHN F · CIK 0001230766 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Exelon Directors' Deferred Stock Unit Plan

Disclosed balance after: 10,864

F1 · balance_after: Balance includes 82 shares acquired on June 10, 2021 through automatic dividend reinvestment.

SEC source: 0001062993-21-006199 · form4.xml · derivative · entry 4

LAWLESS ROBERT J · CIK 0001164638 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 36,453

Underlying: Common Stock · 1,044 shares

Expires not disclosed

F3 · derivative.exercise_price: Phantom share equivalents acquired in the reporting person's Exelon stock fund account that is part of a multi-fund, non-qualified deferred compensation plan and that will be settled in cash on a 1 for 1 basis upon the termination of the reporting person's service on the Exelon board of directors. Balance also reflects 296 shares equivalents accrued on May 13, 2021 through automatic dividend reinvestment.

F3 · derivative.exercise_date: Phantom share equivalents acquired in the reporting person's Exelon stock fund account that is part of a multi-fund, non-qualified deferred compensation plan and that will be settled in cash on a 1 for 1 basis upon the termination of the reporting person's service on the Exelon board of directors. Balance also reflects 296 shares equivalents accrued on May 13, 2021 through automatic dividend reinvestment.

F3 · derivative.expiration_date: Phantom share equivalents acquired in the reporting person's Exelon stock fund account that is part of a multi-fund, non-qualified deferred compensation plan and that will be settled in cash on a 1 for 1 basis upon the termination of the reporting person's service on the Exelon board of directors. Balance also reflects 296 shares equivalents accrued on May 13, 2021 through automatic dividend reinvestment.

F3 · balance_after: Phantom share equivalents acquired in the reporting person's Exelon stock fund account that is part of a multi-fund, non-qualified deferred compensation plan and that will be settled in cash on a 1 for 1 basis upon the termination of the reporting person's service on the Exelon board of directors. Balance also reflects 296 shares equivalents accrued on May 13, 2021 through automatic dividend reinvestment.

SEC source: 0001062993-21-006199 · form4.xml · nonDerivative · entry 1

LAWLESS ROBERT J · CIK 0001164638 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Exelon Directors' Deferred Stock Unit Plan

Disclosed balance after: 36,886

F1 · balance_after: Balance includes 293 shares acquired on June 10, 2021 through automatic dividend reinvestment.