NRG

SEC source: 0001225208-21-001583 · doc4.xml · nonDerivative · entry 1

Curci Brian · CIK 0001734640 · Sr VP & General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 37,895

F1 · price: Represents dividend equivalent rights accrued on the Reporting Person's deferred stock units, which become exercisable proportionately with the deferred stock units to which they relate and may only be settled in NRG common stock. Each dividend equivalent right is the economic equivalent of one share of NRG common stock.

F2 · balance_after: Includes 262 dividend equivalent rights.

SEC source: 0001225208-21-001580 · doc4.xml · nonDerivative · entry 1

Pruner Alexandra · CIK 0001759034 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,199

F1 · price: Represents dividend equivalent rights accrued on the Reporting Person's deferred stock units, which become exercisable proportionately with the deferred stock units to which they relate and may only be settled in NRG common stock. Each dividend equivalent right is the economic equivalent of one share of NRG common stock.

F2 · balance_after: Includes 310 dividend equivalent rights.

SEC source: 0001225208-21-001578 · doc4.xml · nonDerivative · entry 1

Cox Heather · CIK 0001734706 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 18,978

F1 · price: Represents dividend equivalent rights accrued on the Reporting Person's deferred stock units, which become exercisable proportionately with the deferred stock units to which they relate and may only be settled in NRG common stock. Each dividend equivalent right is the economic equivalent of one share of NRG common stock.

F2 · balance_after: Includes 344 dividend equivalent rights.

SEC source: 0001225208-21-001577 · doc4.xml · nonDerivative · entry 1

COBEN LAWRENCE S · CIK 0001272898 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 116,034

F1 · price: Represents dividend equivalent rights accrued on the Reporting Person's deferred stock units, which become exercisable proportionately with the deferred stock units to which they relate and may only be settled in NRG common stock. Each dividend equivalent right is the economic equivalent of one share of NRG common stock.

F2 · balance_after: Includes 4,761 dividend equivalent rights.

SEC source: 0001225208-21-001575 · doc4.xml · nonDerivative · entry 1

Carrillo Antonio · CIK 0001486776 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,055

F1 · price: Represents dividend equivalent rights accrued on the Reporting Person's deferred stock units, which become exercisable proportionately with the deferred stock units to which they relate and may only be settled in NRG common stock. Each dividend equivalent right is the economic equivalent of one share of NRG common stock.

F2 · balance_after: Includes 188 dividend equivalent rights.

SEC source: 0001225208-21-001576 · doc4.xml · nonDerivative · entry 1

Carter Matthew Jr · CIK 0001481169 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 19,392

F1 · price: Represents dividend equivalent rights accrued on the Reporting Person's deferred stock units, which become exercisable proportionately with the deferred stock units to which they relate and may only be settled in NRG common stock. Each dividend equivalent right is the economic equivalent of one share of NRG common stock.

F2 · balance_after: Includes 793 dividend equivalent rights.

SEC source: 0001225208-21-001574 · doc4.xml · nonDerivative · entry 1

Abraham Spencer · CIK 0001326633 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 56,767

F1 · price: Represents dividend equivalent rights accrued on the Reporting Person's deferred stock units, which become exercisable proportionately with the deferred stock units to which they relate and may only be settled in NRG common stock. Each dividend equivalent right is the economic equivalent of one share of NRG common stock.

F2 · balance_after: Included 3,547 dividend equivalent rights.

SEC source: 0001225208-21-000600 · doc4.xml · derivative · entry 13

Gaudette Robert J · CIK 0001505252 · Sr VP, Business Solutions

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock, par value $.01 per share · 11,197 shares

Expires 2021-02-22

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.

SEC source: 0001225208-21-000600 · doc4.xml · nonDerivative · entry 9

Gaudette Robert J · CIK 0001505252 · Sr VP, Business Solutions

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 69,008

F12 · price: This transaction was executed in multiple trades ranging from $36.28 to $37.75. The price reported reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

SEC source: 0001225208-21-000600 · doc4.xml · nonDerivative · entry 8

Gaudette Robert J · CIK 0001505252 · Sr VP, Business Solutions

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 80,205

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.

SEC source: 0001225208-21-000439 · doc4.xml · nonDerivative · entry 12

Killinger Elizabeth R · CIK 0001662519 · Exec VP, Retail

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 123,052

F13 · price: This transaction was executed in multiple trades ranging from $36.28 to $37.75. The price reported reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

SEC source: 0001225208-21-000439 · doc4.xml · nonDerivative · entry 11

Killinger Elizabeth R · CIK 0001662519 · Exec VP, Retail

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 154,595

SEC source: 0001225208-21-000439 · doc4.xml · nonDerivative · entry 10

Killinger Elizabeth R · CIK 0001662519 · Exec VP, Retail

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 154,840

SEC source: 0001225208-21-000406 · doc4.xml · derivative · entry 10

Gutierrez Mauricio · CIK 0001428578 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 77,042

Underlying: Common Stock, par value $.01 per share · 77,042 shares

Expires 2024-01-02

F14 · derivative.exercise_price: The Reporting Person was issued 77,042 Relative Performance Stock Units ("RPSUs") by NRG Energy, Inc. under the LTIP on January 2, 2021. The RPSUs will convert to shares of NRG Common Stockon January 2, 2024 only in the event the Company has achieved a certain level of total shareholder return ("TSR") relative to the Peer Group (defined below) over a three-year performance period. The numberof shares of Common Stock that the Reporting Person may receive is interpolated for TSR falling between Threshold, Target, and Maximum levels as described below.

F15 · shares: Reporting Person will receive(i) a maximum of 154,084 shares of Common Stock if Company's TSR is ranked at or above the 75th percentile relative to a peer group of companies approved by the Company's Compensation Committee (the "Peer Group") for the performance period (the "Maximum"); (ii) 77,042 shares of Common Stock if Company's TSR is ranked at the 55th percentile relative to the Peer Group for the performance period (the "Target"); provided, however, if TSR is less than negative fifteen percent (-15%), the Company's TSR must be ranked at the 65th percentile relative to the Peer Group for the performance period to receive the Target award; or (iii) 19,260 shares of Common Stock if Company's TSR is ranked at the 25th percentile relative to the Peer Group for the performance period(the "Threshold"). The Reporting Person will not receive any shares of Common Stock if Company's TSR is below the 25th percentile relative to the Peer Group for the performance period.

F16 · derivative.underlying_shares: The Maximum award that the Reporting Person will receive shall not exceed six (6) times the fair market value of the Target award, determined as of the date of grant.

SEC source: 0001225208-21-000406 · doc4.xml · derivative · entry 9

Gutierrez Mauricio · CIK 0001428578 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock, par value $.01 per share · 123,374 shares

Expires 2021-01-02

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.

F13 · derivative.exercise_price: The Reporting Person was issued 97,916 RPSUs by NRG under the LTIP on January 2, 2018 that vested on January 2, 2021. On the vesting date the Reporting Person was entitled to receive a maximum of 195,832 shares of Common Stock if the company achieved 100% increase in total shareholder return since the grant date (the "Maximum"), 97,916 shares of Common Stock if there is no change in total shareholder return since the grant date (the "Target") or 24,479 shares of Common Stock if there is a 25% decrease in total shareholder return since the grant date (the "Threshold"). The Reporting Person wouldnot have received any shares of Common Stock if total shareholder return had decreased by more than 25% since the grant date. The number of shares that the Reporting Person could have received in interpolated for total shareholder return fall between Threshold, Target and Maximum levels. On January 2, 2021 the reporting person vested in 123,374 shares.

SEC source: 0001225208-21-000406 · doc4.xml · derivative · entry 8

Gutierrez Mauricio · CIK 0001428578 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock, par value $.01 per share · 5,331 shares

Expires 2021-01-02

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.

F12 · derivative.exercise_price: In connection with the vesting of the RPSUs described above, an incremental 5,331 DERs vested. Dividend equivalent rights accrue on the Reporting Person's restricted stock units, market stock units orrelative performance stock units, which become exercisable proportionately with the restricted stock units, market stock units or relative performance stock units to which they relate and may only be settled inNRG common stock. Each dividend equivalent right is the economic equivalent of one share of NRG common stock.

SEC source: 0001225208-21-000406 · doc4.xml · nonDerivative · entry 7

Gutierrez Mauricio · CIK 0001428578 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 968,731

F11 · price: The Reporting Person elected to satisfy their tax withholding obligation upon the exchange of common stock for RPSUs having a value on the date of the exchange equal to the withholding obligation. Thisform reflects the surrender of 81,020 shares of common stock to satisfy the grantee's tax withholding obligation

SEC source: 0001225208-21-000406 · doc4.xml · nonDerivative · entry 6

Gutierrez Mauricio · CIK 0001428578 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,049,751

F9 · price: On January 2, 2020, the Reporting Person was issued 48,401 Restricted Stock Units ("RSUs") by NRG Energy, Inc. under NRG Energy, Inc.'s Amended and Restated Long Term Incentive Plan. Each RSU is equivalentin value to one share of NRG's common stock, par value $.01. On January 2, 2021 16,117 shares vested. The Reporting Person elected to satisfy their tax obligation upon the exchange of common stock for RSUs having a value on the date of the exchange equal to the withholding obligation. This form reflects the surrender of 10,511 shares of common stock to satisfy the grantee's tax withholding obligation.

F10 · balance_after: In connection with the vesting of the RSUs described above, 580 DERs vested, resulting in the Reporting Person holding 1,788 dividend equivalent rights in the aggregate. Dividend equivalent rights accrue on the Reporting Person's restricted stock units, market stock units or relative performance stock units, which become exercisable proportionately with the restricted stock units, market stock units or relative performance stockunits.

SEC source: 0001225208-21-000406 · doc4.xml · nonDerivative · entry 5

Gutierrez Mauricio · CIK 0001428578 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,060,262

F7 · price: On January 2, 2018, the Reporting Person was issued 59,692 Restricted Stock Units ("RSUs") by NRG Energy, Inc. under NRG Energy, Inc.'s Amended and Restated Long Term Incentive Plan. Each RSU is equivalent in value to one share of NRG's common stock, par value $.01. On January 2, 2021 19,938 shares vested. The Reporting Person elected to satisfy their tax obligation upon the exchange of common stock for RSUs having avalue on the date of the exchange equal to the withholding obligation. This form reflects the surrender of 9,908 shares of common stock to satisfy the grantee's tax withholding obligation.

F8 · balance_after: In connection with the vesting of the RSUs described above, 861 DERs vested, resulting in the Reporting Person holding 2,368 dividend equivalent rights in the aggregate. Dividend equivalent rights accrue on theReporting Person's restricted stock units, market stock units or relative performance stock units, which become exercisable proportionately with the restricted stock units, market stock units or relative performance stockunits.

SEC source: 0001225208-21-000406 · doc4.xml · nonDerivative · entry 4

Gutierrez Mauricio · CIK 0001428578 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,070,170

F5 · price: On January 2, 2019, the Reporting Person was issued 47,842 Restricted Stock Units ("RSUs") by NRG Energy, Inc. under NRG Energy, Inc.'s Amended and Restated Long Term Incentive Plan. Each RSU is equivalentin value to one share of NRG's common stock, par value $.01. On January 2, 2021 15,931 shares vested. The Reporting Person elected to satisfy their tax obligation upon the exchange of common stock for RSUs having a value on the date of the exchange equal to the withholding obligation. This form reflects the surrender of 9,547 shares of common stock to satisfy the grantee's tax withholding obligation.

F6 · balance_after: In connection with the vesting of the RSUs described above, 624 DERs vested, resulting in the Reporting Person holding 3,229 dividend equivalent rights in the aggregate. Dividend equivalent rights accrue on theReporting Person's restricted stock units, market stock units or relative performance stock units, which become exercisable proportionately with the restricted stock units, market stock units or relative performance stock units.

SEC source: 0001225208-21-000406 · doc4.xml · nonDerivative · entry 3

Gutierrez Mauricio · CIK 0001428578 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,079,717

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.

F4 · price: In connection with the vesting of the RPSUs described above, an incremental 5,331 DERs vested. Dividend equivalent rights accrue on the Reporting Person's restricted stock units or relative performance stock units, which become exercisable proportionately with the restricted stock units or relative performance stock units to which they relate and may only be settled in NRG common stock. Each dividend equivalent right is the economic equivalent of one share of NRG common stock.

SEC source: 0001225208-21-000406 · doc4.xml · nonDerivative · entry 2

Gutierrez Mauricio · CIK 0001428578 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,074,386

F2 · shares: Represents Restricted Stock Units issued to the Reporting Person under NRG Energy, Inc.'s Amended and Restated Long-Term Incentive Plan ("LTIP").

F3 · price: Each RSU is equivalent in value to one share of NRG's Common Stock, par value $.01 per share. The Reporting Person will receive from NRG one such share of Common Stock for each RSU that will vest ratably over a three year period beginning on the first anniversary of the date of grant.

SEC source: 0001225208-21-000406 · doc4.xml · nonDerivative · entry 1

Gutierrez Mauricio · CIK 0001428578 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,024,374

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: The Reporting Person was issued 97,916 RPSUs by NRG under the LTIP on January 2, 2018 that vested on January 2, 2021. On the vesting date the Reporting Person was entitled to receive a maximum of 195,832shares of Common Stock if the company achieved 100% increase in total shareholder return since the grant date (the "Maximum"), 97,916 shares of Common Stock if there is no change in total shareholder return since thegrant date (the "Target") or 24,479 shares of Common Stock if there is a 25% decrease in total shareholder return since the grant date (the "Threshold"). The Reporting Person wouldnot have received any shares of CommonStock if total shareholder return had decreased by more than 25% since the grant date. The number of shares that the Reporting Person could have received in interpolated for total shareholder return fall between Threshold,Target and Maximum levels. On January 2, 2021 the reporting person vested in 123,374 shares.

SEC source: 0001225208-21-000408 · doc4.xml · derivative · entry 10

Andrews Kirkland B · CIK 0001529284 · Exec VP & Chief Financial Offi

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 19,263

Underlying: Common Stock, par value $.01 per share · 19,263 shares

Expires 2024-01-02

F13 · derivative.exercise_price: The Reporting Person was issued 19,263 Relative Performance Stock Units ("RPSUs") by NRG Energy, Inc. under the LTIP on January 2, 2021. The RPSUs will convert to shares of NRG Common Stockon January 2, 2024 only in the event the Company has achieved a certain level of total shareholder return ("TSR") relative to the Peer Group (defined below) over a three-year performance period. The numberof shares of Common Stock that the Reporting Person may receive is interpolated for TSR falling between Threshold, Target, and Maximum levels as described below.

F14 · shares: Reporting Person will receive(i) a maximum of 38,526 shares of Common Stock if Company's TSR is ranked at or above the 75th percentile relative to a peer group of companies approved by the Company's Compensation Committee (the "Peer Group") for the performance period (the "Maximum"); (ii) 19,263 shares of Common Stock if Company's TSR is ranked at the 55th percentile relative to the Peer Group for the performance period (the "Target"); provided, however, if TSR is less than negative fifteen percent (-15%), the Company's TSR must be ranked at the 65th percentile relative to the Peer Group for the performance period to receive the Target award; or (iii) 4,815 shares of Common Stock if Company's TSR is ranked at the 25th percentile relative to the Peer Group for the performance period(the "Threshold"). The Reporting Person will not receive any shares of Common Stock if Company's TSR is below the 25th percentile relative to the Peer Group for the performance period.

F15 · derivative.underlying_shares: The Maximum award that the Reporting Person will receive shall not exceed six (6) times the fair market value of the Target award, determined as of the date of grant.

SEC source: 0001225208-21-000408 · doc4.xml · derivative · entry 9

Andrews Kirkland B · CIK 0001529284 · Exec VP & Chief Financial Offi

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock, par value $.01 per share · 31,884 shares

Expires 2021-01-02

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.

F12 · derivative.exercise_price: The Reporting Person was issued 25,305 RPSUs by NRG under the LTIP on January 2, 2018 that vested on January 2, 2021. On the vesting date the Reporting Person was entitled to receive a maximum of 50,610 shares of Common Stock if the company achieved 100% increase in total shareholder return since the grant date (the "Maximum"), 25,305 shares of Common Stock if there is no change in total shareholder return since the grant date (the "Target") or 6,326 shares of Common Stock if there is a 25% decrease in total shareholder return since the grant date (the "Threshold"). The Reporting Person would not have received any shares of Common Stock if total shareholder return had decreased by more than 25% since the grant date. The number of shares that the Reporting Person could have received in interpolated for total shareholder return fall between Threshold, Target and Maximum levels. On January 2, 2021 the reporting person vested in 31,884 shares.

SEC source: 0001225208-21-000408 · doc4.xml · derivative · entry 8

Andrews Kirkland B · CIK 0001529284 · Exec VP & Chief Financial Offi

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock, par value $.01 per share · 1,377 shares

Expires 2021-01-02

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.

F4 · derivative.exercise_price: In connection with the vesting of the RPSUs described above, an incremental 1,377 DERs vested. Dividend equivalent rights accrue on the Reporting Person's restricted stock units or relative performance stock units, which become exercisable proportionately with the restricted stock units or relative performance stock units to which they relate and may only be settled in NRG common stock. Each dividend equivalent right is the economic equivalent of one share of NRG common stock.

SEC source: 0001225208-21-000408 · doc4.xml · nonDerivative · entry 7

Andrews Kirkland B · CIK 0001529284 · Exec VP & Chief Financial Offi

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 282,896

F11 · price: The Reporting Person elected to satisfy their tax withholding obligation upon the exchange of common stock for RPSUs having a value on the date of the exchange equal to the withholding obligation. This form reflects the surrender of 18,997 shares of common stock to satisfy the grantee's tax withholding obligation

SEC source: 0001225208-21-000408 · doc4.xml · nonDerivative · entry 6

Andrews Kirkland B · CIK 0001529284 · Exec VP & Chief Financial Offi

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 301,893

F9 · price: On January 2, 2018, the Reporting Person was issued 15,427 Restricted Stock Units ("RSUs") by NRG Energy, Inc. under NRG Energy, Inc.'s Amended and Restated Long Term Incentive Plan. Each RSU is equivalentin value to one share of NRG's common stock, par value $.01. On January 2, 2021 5,153 shares vested. The Reporting Person elected to satisfy their tax obligation upon the exchange of common stock for RSUs having avalue on the date of the exchange equal to the withholding obligation. This form reflects the surrender of 2,663 shares of common stock to satisfy the grantee's tax withholding obligation.

F10 · balance_after: In connection with the vesting of the RSUs described above, 222 DERs vested, resulting in the Reporting Person holding 447 dividend equivalent rights in the aggregate. Dividend equivalent rights accrue on the Reporting Person's restricted stock units or relative performance stock units, which become exercisable proportionately with the restricted stock units or relative performance stock units.

SEC source: 0001225208-21-000408 · doc4.xml · nonDerivative · entry 5

Andrews Kirkland B · CIK 0001529284 · Exec VP & Chief Financial Offi

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 304,556

F7 · price: On January 2, 2020, the Reporting Person was issued 12,102 Restricted Stock Units ("RSUs") by NRG Energy, Inc. under NRG Energy, Inc.'s Amended and Restated Long Term Incentive Plan. Each RSU is equivalent in value to one share of NRG's common stock, par value $.01. On January 2, 2021 4,029 shares vested. The Reporting Person elected to satisfy their tax obligation upon the exchange of common stock for RSUs having avalue on the date of the exchange equal to the withholding obligation. This form reflects the surrender of 1,930 shares of common stock to satisfy the grantee's tax withholding obligation.

F8 · balance_after: In connection with the vesting of the RSUs described above, 145 DERs vested, resulting in the Reporting Person holding 669 dividend equivalent rights in the aggregate. Dividend equivalent rights accrue on the Reporting Person's restricted stock units or relative performance stock units, which become exercisable proportionately with the restricted stock units or relative performance stock units.

SEC source: 0001225208-21-000408 · doc4.xml · nonDerivative · entry 4

Andrews Kirkland B · CIK 0001529284 · Exec VP & Chief Financial Offi

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 306,486

F5 · price: On January 2, 2019, the Reporting Person was issued 11,962 Restricted Stock Units ("RSUs") by NRG Energy, Inc. under NRG Energy, Inc.'s Amended and Restated Long Term Incentive Plan. Each RSU is equivalentin value to one share of NRG's common stock, par value $.01. On January 2, 2021 3,983 shares vested. The Reporting Person elected to satisfy their tax obligation upon the exchange of common stock for RSUs having a value on the date of the exchange equal to the withholding obligation. This form reflects the surrender of 1,906 shares of common stock to satisfy the grantee's tax withholding obligation.

F6 · balance_after: In connection with the vesting of the RSUs described above, 156 DERs vested, resulting in the Reporting Person holding 814 dividend equivalent rights in the aggregate. Dividend equivalent rights accrue on the Reporting Person's restricted stock units or relative performance stock units, which become exercisable proportionately with the restricted stock units or relative performance stock units.

SEC source: 0001225208-21-000408 · doc4.xml · nonDerivative · entry 3

Andrews Kirkland B · CIK 0001529284 · Exec VP & Chief Financial Offi

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 308,392

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.

F4 · price: In connection with the vesting of the RPSUs described above, an incremental 1,377 DERs vested. Dividend equivalent rights accrue on the Reporting Person's restricted stock units or relative performance stock units, which become exercisable proportionately with the restricted stock units or relative performance stock units to which they relate and may only be settled in NRG common stock. Each dividend equivalent right is the economic equivalent of one share of NRG common stock.

SEC source: 0001225208-21-000408 · doc4.xml · nonDerivative · entry 2

Andrews Kirkland B · CIK 0001529284 · Exec VP & Chief Financial Offi

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 307,015

F2 · shares: Represents Restricted Stock Units issued to the Reporting Person under NRG Energy, Inc.'s Amended and Restated Long-Term Incentive Plan ("LTIP").

F3 · price: Each RSU is equivalent in value to one share of NRG's Common Stock, par value $.01 per share. The Reporting Person will receive from NRG one such share of Common Stock for each RSU that will vest ratably over a three year period beginning on the first anniversary of the date of grant.

SEC source: 0001225208-21-000408 · doc4.xml · nonDerivative · entry 1

Andrews Kirkland B · CIK 0001529284 · Exec VP & Chief Financial Offi

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 294,510

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: The Reporting Person was issued 25,305 RPSUs by NRG under the LTIP on January 2, 2018 that vested on January 2, 2021. On the vesting date the Reporting Person was entitled to receive a maximum of 50,610 shares of Common Stock if the company achieved 100% increase in total shareholder return since the grant date (the "Maximum"), 25,305 shares of Common Stock if there is no change in total shareholder return since the grant date (the "Target") or 6,326 shares of Common Stock if there is a 25% decrease in total shareholder return since the grant date (the "Threshold"). The Reporting Person wouldnot have received any shares of Common Stock if total shareholder return had decreased by more than 25% since the grant date. The number of shares that the Reporting Person could have received in interpolated for total shareholder return fall between Threshold, Target and Maximum levels. On January 2, 2021 the reporting person vested in 31,884 shares.

SEC source: 0001225208-21-000600 · doc4.xml · derivative · entry 12

Gaudette Robert J · CIK 0001505252 · Sr VP, Business Solutions

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,895

Underlying: Common Stock, par value $.01 per share · 8,895 shares

Expires 2024-01-02

F14 · derivative.exercise_price: The Reporting Person was issued 8,895 Relative Performance Stock Units ("RPSUs") by NRG Energy, Inc. under the LTIP on January 2, 2021. The RPSUs will convert to shares of NRG Common Stockon January 2, 2024 only in the event the Company has achieved a certain level of total shareholder return ("TSR") relative to the Peer Group (defined below) over a three-year performance period. The numberof shares of Common Stock that the Reporting Person may receive is interpolated for TSR falling between Threshold, Target, and Maximum levels as described below.

SEC source: 0001225208-21-000600 · doc4.xml · derivative · entry 11

Gaudette Robert J · CIK 0001505252 · Sr VP, Business Solutions

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock, par value $.01 per share · 14,435 shares

Expires 2021-01-02

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.

F13 · derivative.exercise_price: The Reporting Person was issued 11,456 RPSUs by NRG under the LTIP on January 2, 2018 that vested on January 2, 2021. On the vesting date the Reporting Person was entitled to receive a maximum of 22,912 shares of Common Stock if the company achieved 100% increase in total shareholder return since the grant date (the "Maximum"), 11,456 shares of Common Stock if there is no change in total shareholder return since the grant date (the "Target") or 2,864 shares of Common Stock if there is a 25% decrease in total shareholder return since the grant date (the "Threshold"). The Reporting Person would not have received any shares of Common Stock if total shareholder return had decreased by more than 25% since the grant date. The number of shares that the Reporting Person could have received in interpolated for total shareholder return fall between Threshold, Target and Maximum levels. On January 2, 2021 the reporting person vested in 14,435 shares.

SEC source: 0001225208-21-000600 · doc4.xml · derivative · entry 10

Gaudette Robert J · CIK 0001505252 · Sr VP, Business Solutions

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock, par value $.01 per share · 623 shares

Expires 2021-01-02

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.

F4 · derivative.exercise_price: In connection with the vesting of the RPSUs described above, an incremental 623 DERs vested. Dividend equivalent rights accrue on the Reporting Person's restricted stock units or relative performance stock units, which become exercisable proportionately with the restricted stock units or relative performance stock units to which they relate and may only be settled in NRG common stock. Each dividend equivalent right is the economic equivalent of one share of NRG common stock.

SEC source: 0001225208-21-000600 · doc4.xml · nonDerivative · entry 7

Gaudette Robert J · CIK 0001505252 · Sr VP, Business Solutions

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 69,008

F11 · price: The Reporting Person elected to satisfy their tax withholding obligation upon the exchange of common stock for RPSUs having a value on the date of the exchange equal to the withholding obligation. Thisform reflects the surrender of 3,666 shares of common stock to satisfy the grantee's tax withholding obligation

SEC source: 0001225208-21-000600 · doc4.xml · nonDerivative · entry 6

Gaudette Robert J · CIK 0001505252 · Sr VP, Business Solutions

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 72,674

F9 · price: On January 2, 2018, the Reporting Person was issued 6,984 Restricted Stock Units ("RSUs") by NRG Energy, Inc. under NRG Energy, Inc.'s Amended and Restated Long Term Incentive Plan. Each RSU is equivalent in value to one share of NRG's common stock, par value $.01. On January 2, 2021 2,333 shares vested. The Reporting Person elected to satisfy their tax obligation upon the exchange of common stock for RSUs having a value on the date of the exchange equal to the withholding obligation. This form reflects the surrender of 721 shares of common stock to satisfy the grantee's tax withholding obligation.

F10 · balance_after: In connection with the vesting of the RSUs described above, 100 DERs vested, resulting in the Reporting Person holding 337 dividend equivalent rights in the aggregate. Dividend equivalent rights accrue on the Reporting Person's restricted stock units or relative performance stock units, which become exercisable proportionately with the restricted stock units or relative performance stock units.

SEC source: 0001225208-21-000600 · doc4.xml · nonDerivative · entry 5

Gaudette Robert J · CIK 0001505252 · Sr VP, Business Solutions

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 73,395

F7 · price: On January 2, 2019, the Reporting Person was issued 5,402 Restricted Stock Units ("RSUs") by NRG Energy, Inc. under NRG Energy, Inc.'s Amended and Restated Long Term Incentive Plan. Each RSU is equivalent in value to one share of NRG's common stock, par value $.01. On January 2, 2021 1,799 shares vested. The Reporting Person elected to satisfy their tax obligation upon the exchange of common stock for RSUs having avalue on the date of the exchange equal to the withholding obligation. This form reflects the surrender of 523 shares of common stock to satisfy the grantee's tax withholding obligation.

F8 · balance_after: In connection with the vesting of the RSUs described above, 70 DERs vested, resulting in the Reporting Person holding 267 dividend equivalent rights in the aggregate. Dividend equivalent rights accrue on theReporting Person's restricted stock units, market stock units or relative performance stock units, which become exercisable proportionately with the restricted stock units, market stock units or relative performance stock units.

SEC source: 0001225208-21-000600 · doc4.xml · nonDerivative · entry 4

Gaudette Robert J · CIK 0001505252 · Sr VP, Business Solutions

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 73,918

F5 · price: On January 2, 2020, the Reporting Person was issued 5,425 Restricted Stock Units ("RSUs") by NRG Energy, Inc. under NRG Energy, Inc.'s Amended and Restated Long Term Incentive Plan. Each RSU is equivalent in value to one share of NRG's common stock, par value $.01. On January 2, 2021 1,806 shares vested. The Reporting Person elected to satisfy their tax obligation upon the exchange of common stock for RSUs having avalue on the date of the exchange equal to the withholding obligation. This form reflects the surrender of 447 shares of common stock to satisfy the grantee's tax withholding obligation.

F6 · balance_after: In connection with the vesting of the RSUs described above, 65 DERs vested, resulting in the Reporting Person holding 202 dividend equivalent rights in the aggregate. Dividend equivalent rights accrue on the Reporting Person's restricted stock units or relative performance stock units, which become exercisable proportionately with the restricted stock units or relative performance stock units.

SEC source: 0001225208-21-000600 · doc4.xml · nonDerivative · entry 3

Gaudette Robert J · CIK 0001505252 · Sr VP, Business Solutions

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 74,365

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.

F4 · price: In connection with the vesting of the RPSUs described above, an incremental 623 DERs vested. Dividend equivalent rights accrue on the Reporting Person's restricted stock units or relative performance stock units, which become exercisable proportionately with the restricted stock units or relative performance stock units to which they relate and may only be settled in NRG common stock. Each dividend equivalent right is the economic equivalent of one share of NRG common stock.

SEC source: 0001225208-21-000600 · doc4.xml · nonDerivative · entry 2

Gaudette Robert J · CIK 0001505252 · Sr VP, Business Solutions

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 73,742

F2 · shares: Represents Restricted Stock Units issued to the Reporting Person under NRG Energy, Inc.'s Amended and Restated Long-Term Incentive Plan ("LTIP").

F3 · price: Each RSU is equivalent in value to one share of NRG's Common Stock, par value $.01 per share. The Reporting Person will receive from NRG one such share of Common Stock for each RSU that will vest ratably over a three year period beginning on the first anniversary of the date of grant.

SEC source: 0001225208-21-000600 · doc4.xml · nonDerivative · entry 1

Gaudette Robert J · CIK 0001505252 · Sr VP, Business Solutions

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 67,968

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: The Reporting Person was issued 11,456 RPSUs by NRG under the LTIP on January 2, 2018 that vested on January 2, 2021. On the vesting date the Reporting Person was entitled to receive a maximum of 22,912 shares of Common Stock if the company achieved 100% increase in total shareholder return since the grant date (the "Maximum"), 11,456 shares of Common Stock if there is no change in total shareholder return since the grant date (the "Target") or 2,864 shares of Common Stock if there is a 25% decrease in total shareholder return since the grant date (the "Threshold"). The Reporting Person wouldnot have received any shares of Common Stock if total shareholder return had decreased by more than 25% since the grant date. The number of shares that the Reporting Person could have received in interpolated for total shareholder return fall between Threshold, Target and Maximum levels. On January 2, 2021 the reporting person vested in 14,435 shares.

SEC source: 0001225208-21-000519 · doc4.xml · derivative · entry 10

Curci Brian · CIK 0001734640 · Sr VP & General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,254

Underlying: Common Stock, par value $.01 per share · 8,254 shares

Expires 2024-01-02

F13 · derivative.exercise_price: The Reporting Person was issued 8,254 Relative Performance Stock Units ("RPSUs") by NRG Energy, Inc. under the LTIP on January 2, 2021. The RPSUs will convert to shares of NRG Common Stockon January 2, 2024 only in the event the Company has achieved a certain level of total shareholder return ("TSR") relative to the Peer Group (defined below) over a three-year performance period. The numberof shares of Common Stock that the Reporting Person may receive is interpolated for TSR falling between Threshold, Target, and Maximum levels as described below.

F14 · shares: Reporting Person will receive(i) a maximum of 16,508 shares of Common Stock if Company's TSR is ranked at or above the 75th percentile relative to a peer group of companies approved by the Company's Compensation Committee (the "Peer Group") for the performance period (the "Maximum"); (ii) 8,254 shares of Common Stock if Company's TSR is ranked at the 55th percentile relative to the Peer Group for the performance period (the "Target"); provided, however, if TSR is less than negative fifteen percent (-15%), the Company's TSR must be ranked at the 65th percentile relative to the Peer Group for the performance period to receive the Target award; or (iii) 2,064 shares of Common Stock if Company's TSR is ranked at the 25th percentile relative to the Peer Group for the performance period(the "Threshold"). The Reporting Person will not receive any shares of Common Stock if Company's TSR is below the 25th percentile relative to the Peer Group for the performance period.

F15 · balance_after: The Maximum award that the Reporting Person will receive shall not exceed six (6) times the fair market value of the Target award, determined as of the date of grant.

SEC source: 0001225208-21-000519 · doc4.xml · derivative · entry 9

Curci Brian · CIK 0001734640 · Sr VP & General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock, par value $.01 per share · 9,589 shares

Expires 2021-01-02

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.

F12 · derivative.exercise_price: The Reporting Person was issued 7,610 RPSUs by NRG under the LTIP on January 2, 2018 that vested on January 2, 2021. On the vesting date the Reporting Person was entitled to receive a maximum of 15,220 shares of Common Stock if the company achieved 100% increase in total shareholder return since the grant date (the "Maximum"), 7,610 shares of Common Stock if there is no change in total shareholder return since the grant date (the "Target") or 1,903 shares of Common Stock if there is a 25% decrease in total shareholder return since the grant date (the "Threshold"). The Reporting Person would not have received any shares of Common Stock if total shareholder return had decreased by more than 25% since the grant date. The number of shares that the Reporting Person could have received in interpolated for total shareholder return fall between Threshold, Target and Maximum levels. On January 2, 2021 the reporting person vested in 9,589 shares.

SEC source: 0001225208-21-000519 · doc4.xml · derivative · entry 8

Curci Brian · CIK 0001734640 · Sr VP & General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock, par value $.01 per share · 414 shares

Expires 2021-01-02

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.

F4 · derivative.exercise_price: In connection with the vesting of the RPSUs described above, an incremental 414 DERs vested. Dividend equivalent rights accrue on the Reporting Person's restricted stock units or relative performance stock units, which become exercisable proportionately with the restricted stock units or relative performance stock units to which they relate and may only be settled in NRG common stock. Each dividend equivalent right is the economic equivalent of one share of NRG common stock.

SEC source: 0001225208-21-000519 · doc4.xml · nonDerivative · entry 7

Curci Brian · CIK 0001734640 · Sr VP & General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 37,815

F11 · price: The Reporting Person elected to satisfy their tax withholding obligation upon the exchange of common stock for RPSUs having a value on the date of the exchange equal to the withholding obligation. This form reflects the surrender of 2,740 shares of common stock to satisfy the grantee's tax withholding obligation

SEC source: 0001225208-21-000519 · doc4.xml · nonDerivative · entry 6

Curci Brian · CIK 0001734640 · Sr VP & General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 40,555

F9 · price: On January 2, 2019, the Reporting Person was issued 4,871 Restricted Stock Units ("RSUs") by NRG Energy, Inc. under NRG Energy, Inc.'s Amended and Restated Long Term Incentive Plan. Each RSU is equivalen tin value to one share of NRG's common stock, par value $.01. On January 2, 2021 1,622 shares vested. The Reporting Person elected to satisfy their tax obligation upon the exchange of common stock for RSUs having avalue on the date of the exchange equal to the withholding obligation. This form reflects the surrender of 551 shares of common stock to satisfy the grantee's tax withholding obligation.

F10 · balance_after: In connection with the vesting of the RSUs described above, 63 DERs vested, resulting in the Reporting Person holding 240 dividend equivalent rights in the aggregate. Dividend equivalent rights accrue on the Reporting Person's restricted stock units or relative performance stock units, which become exercisable proportionately with the restricted stock units or relative performance stock units.

SEC source: 0001225208-21-000519 · doc4.xml · nonDerivative · entry 5

Curci Brian · CIK 0001734640 · Sr VP & General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 41,106

F7 · price: On January 2, 2018, the Reporting Person was issued 4,639 Restricted Stock Units ("RSUs") by NRG Energy, Inc. under NRG Energy, Inc.'s Amended and Restated Long Term Incentive Plan. Each RSU is equivalent in value to one share of NRG's common stock, par value $.01. On January 2, 2021 1,550 shares vested. The Reporting Person elected to satisfy their tax obligation upon the exchange of common stock for RSUs having avalue on the date of the exchange equal to the withholding obligation. This form reflects the surrender of 529 shares of common stock to satisfy the grantee's tax withholding obligation.

F8 · balance_after: In connection with the vesting of the RSUs described above, 66 DERs vested, resulting in the Reporting Person holding 303 dividend equivalent rights in the aggregate. Dividend equivalent rights accrue on the Reporting Person's restricted stock units or relative performance stock units, which become exercisable proportionately with the restricted stock units or relative performance stock units.

SEC source: 0001225208-21-000519 · doc4.xml · nonDerivative · entry 4

Curci Brian · CIK 0001734640 · Sr VP & General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 41,635

F5 · price: On January 2, 2020, the Reporting Person was issued 4,892 Restricted Stock Units ("RSUs") by NRG Energy, Inc. under NRG Energy, Inc.'s Amended and Restated Long Term Incentive Plan. Each RSU is equivalent in value to one share of NRG's common stock, par value $.01. On January 2, 2021 1,629 shares vested. The Reporting Person elected to satisfy their tax obligation upon the exchange of common stock for RSUs having a value on the date of the exchange equal to the withholding obligation. This form reflects the surrender of 478 shares of common stock to satisfy the grantee's tax withholding obligation.

F6 · balance_after: In connection with the vesting of the RSUs described above, 58 DERs vested, resulting in the Reporting Person holding 182 dividend equivalent rights in the aggregate. Dividend equivalent rights accrue on the Reporting Person's restricted stock units or relative performance stock units, which become exercisable proportionately with the restricted stock units units or relative performance stock units.