PLUG

SEC source: 0001104659-23-076295 · tm2320164-3_4seq1.xml · derivative · entry 2

HELMER MAUREEN O · CIK 0001279977 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,149

Underlying: Common Stock · 12,149 shares

Expires 2033-06-27

F2 · security: Stock option granted pursuant to the Plug Power Inc. 2021 Stock Option and Incentive Plan, as amended, in accordance with the Non-Employee Director Compensation Plan.

F3 · derivative.exercise_date: The options shall vest (100%) on the first anniversary of the grant date.

SEC source: 0001104659-23-076295 · tm2320164-3_4seq1.xml · nonDerivative · entry 1

HELMER MAUREEN O · CIK 0001279977 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 142,007

F1 · shares: Consists of a restricted stock award made pursuant to the Plug Power Inc. 2021 Stock Option and Incentive Plan, as amended, in accordance with the Non-Employee Director Compensation Plan. The restricted stock vests (100%) on the first anniversary of the grant date.

SEC source: 0001104659-23-076293 · tm2320164-1_4seq1.xml · derivative · entry 2

BUA JEAN A · CIK 0001183333 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,149

Underlying: Common Stock · 12,149 shares

Expires 2033-06-27

F2 · security: Stock option granted pursuant to the Plug Power Inc. 2021 Stock Option and Incentive Plan, as amended, in accordance with the Non-Employee Director Compensation Plan.

F3 · derivative.exercise_date: The options shall vest (100%) on the first anniversary of the grant date.

SEC source: 0001104659-23-076293 · tm2320164-1_4seq1.xml · nonDerivative · entry 1

BUA JEAN A · CIK 0001183333 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 21,646

F1 · shares: Consists of a restricted stock award made pursuant to the Plug Power Inc. 2021 Stock Option and Incentive Plan, as amended, in accordance with the Non-Employee Director Compensation Plan. The restricted stock vests (100%) on the first anniversary of the grant date.

SEC source: 0001104659-23-066660 · tm2317471-7_4seq1.xml · derivative · entry 1

MIDDLETON PAUL B · CIK 0001224978 · CFO & EVP

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 750,000

Underlying: Common Stock · 750,000 shares

Expires 2030-05-18

F1 · security: Awarded pursuant to Plug Power Inc.'s 2021 Stock Option and Incentive Plan, as amended.

F2 · derivative.exercise_date: Up to one-third (1/3) of the shares underlying the performance stock options will vest and become exercisable on each of the first three anniversaries of the grant date, provided that the daily volume weighted average price ("VWAP") of the Company's common stock during any 30 consecutive trading day period in the three year performance period following the grant date of the stock options equals or exceeds certain levels.

F3 · derivative.exercise_date: One-third (1/3) of the shares underlying the performance stock options will be deemed to have satisfied the performance-based vesting and will be eligible to vest over time if the VWAP during any 30 consecutive trading day period equals $9.84; an additional one-third (1/3) of the shares underlying the options will be deemed to have satisfied the performance-based vesting and will be eligible to vest over time if the VWAP during any 30 consecutive trading day period equals $11.81; and the remaining one-third (1/3) of the shares underlying the options will be deemed to have satisfied the performance-based vesting and will be eligible to vest over time if the VWAP during any 30 consecutive trading day period equals or exceeds $13.77.

F4 · derivative.exercise_date: There will be no interpolation for the performance stock option if the VWAP falls between any two stock price hurdles. Failure to achieve any of the stock price hurdles applicable to a performance stock option during the three-year performance period will result in applicable options being un-exercisable. The performance-based stock options have a maximum term of seven years from the grant date.

SEC source: 0001104659-23-066658 · tm2317471-6_4seq1.xml · derivative · entry 1

Crespo Jose Luis · CIK 0001893770 · GM, Applications & EVP

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 750,000

Underlying: Common Stock · 750,000 shares

Expires 2030-05-18

F1 · security: Awarded pursuant to Plug Power Inc.'s 2021 Stock Option and Incentive Plan, as amended.

F2 · derivative.exercise_date: Up to one-third (1/3) of the shares underlying the performance stock options will vest and become exercisable on each of the first three anniversaries of the grant date, provided that the daily volume weighted average price ("VWAP") of the Company's common stock during any 30 consecutive trading day period in the three year performance period following the grant date of the stock options equals or exceeds certain levels.

F3 · derivative.exercise_date: One-third (1/3) of the shares underlying the performance stock options will be deemed to have satisfied the performance-based vesting and will be eligible to vest over time if the VWAP during any 30 consecutive trading day period equals $9.84; an additional one-third (1/3) of the shares underlying the options will be deemed to have satisfied the performance-based vesting and will be eligible to vest over time if the VWAP during any 30 consecutive trading day period equals $11.81; and the remaining one-third (1/3) of the shares underlying the options will be deemed to have satisfied the performance-based vesting and will be eligible to vest over time if the VWAP during any 30 consecutive trading day period equals or exceeds $13.77.

F4 · derivative.exercise_date: There will be no interpolation for the performance stock option if the VWAP falls between any two stock price hurdles. Failure to achieve any of the stock price hurdles applicable to a performance stock option during the three-year performance period will result in applicable options being un-exercisable. The performance-based stock options have a maximum term of seven years from the grant date.

SEC source: 0001104659-23-066651 · tm2317471-4_4seq1.xml · derivative · entry 1

Mindnich David · CIK 0001967501 · EVP, Global Manufacturing

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 750,000

Underlying: Common Stock · 750,000 shares

Expires 2030-05-18

F1 · security: Awarded pursuant to Plug Power Inc.'s 2021 Stock Option and Incentive Plan, as amended.

F2 · derivative.exercise_date: Up to one-third (1/3) of the shares underlying the performance stock options will vest and become exercisable on each of the first three anniversaries of the grant date, provided that the daily volume weighted average price ("VWAP") of the Company's common stock during any 30 consecutive trading day period in the three year performance period following the grant date of the stock options equals or exceeds certain levels.

F3 · derivative.exercise_date: One-third (1/3) of the shares underlying the performance stock options will be deemed to have satisfied the performance-based vesting and will be eligible to vest over time if the VWAP during any 30 consecutive trading day period equals $9.84; an additional one-third (1/3) of the shares underlying the options will be deemed to have satisfied the performance-based vesting and will be eligible to vest over time if the VWAP during any 30 consecutive trading day period equals $11.81; and the remaining one-third (1/3) of the shares underlying the options will be deemed to have satisfied the performance-based vesting and will be eligible to vest over time if the VWAP during any 30 consecutive trading day period equals or exceeds $13.77.

F4 · derivative.exercise_date: There will be no interpolation for the performance stock option if the VWAP falls between any two stock price hurdles. Failure to achieve any of the stock price hurdles applicable to a performance stock option during the three-year performance period will result in applicable options being un-exercisable. The performance-based stock options have a maximum term of seven years from the grant date.

SEC source: 0001104659-23-066655 · tm2317471-5_4seq1.xml · derivative · entry 1

Conway Gerard L JR · CIK 0001308706 · Gen. Coun, Corp Sec. & EVP

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 750,000

Underlying: Common Stock · 750,000 shares

Expires 2030-05-18

F1 · security: Awarded pursuant to Plug Power Inc.'s 2021 Stock Option and Incentive Plan, as amended.

F2 · derivative.exercise_date: Up to one-third (1/3) of the shares underlying the performance stock options will vest and become exercisable on each of the first three anniversaries of the grant date, provided that the daily volume weighted average price ("VWAP") of the Company's common stock during any 30 consecutive trading day period in the three year performance period following the grant date of the stock options equals or exceeds certain levels.

F3 · derivative.exercise_date: One-third (1/3) of the shares underlying the performance stock options will be deemed to have satisfied the performance-based vesting and will be eligible to vest over time if the VWAP during any 30 consecutive trading day period equals $9.84; an additional one-third (1/3) of the shares underlying the options will be deemed to have satisfied the performance-based vesting and will be eligible to vest over time if the VWAP during any 30 consecutive trading day period equals $11.81; and the remaining one-third (1/3) of the shares underlying the options will be deemed to have satisfied the performance-based vesting and will be eligible to vest over time if the VWAP during any 30 consecutive trading day period equals or exceeds $13.77.

F4 · derivative.exercise_date: There will be no interpolation for the performance stock option if the VWAP falls between any two stock price hurdles. Failure to achieve any of the stock price hurdles applicable to a performance stock option during the three-year performance period will result in applicable options being un-exercisable. The performance-based stock options have a maximum term of seven years from the grant date.

SEC source: 0001104659-23-066649 · tm2317471-3_4seq1.xml · derivative · entry 1

Schmid Keith · CIK 0001590336 · EVP, Special Projects

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 345,000

Underlying: Common Stock · 345,000 shares

Expires 2030-05-18

F1 · security: Awarded pursuant to Plug Power Inc.'s 2021 Stock Option and Incentive Plan, as amended.

F2 · derivative.exercise_date: Up to one-third (1/3) of the shares underlying the performance stock options will vest and become exercisable on each of the first three anniversaries of the grant date, provided that the daily volume weighted average price ("VWAP") of the Company's common stock during any 30 consecutive trading day period in the three year performance period following the grant date of the stock options equals or exceeds certain levels.

F3 · derivative.exercise_date: One-third (1/3) of the shares underlying the performance stock options will be deemed to have satisfied the performance-based vesting and will be eligible to vest over time if the VWAP during any 30 consecutive trading day period equals $9.84; an additional one-third (1/3) of the shares underlying the options will be deemed to have satisfied the performance-based vesting and will be eligible to vest over time if the VWAP during any 30 consecutive trading day period equals $11.81; and the remaining one-third (1/3) of the shares underlying the options will be deemed to have satisfied the performance-based vesting and will be eligible to vest over time if the VWAP during any 30 consecutive trading day period equals or exceeds $13.77.

F4 · derivative.exercise_date: There will be no interpolation for the performance stock option if the VWAP falls between any two stock price hurdles. Failure to achieve any of the stock price hurdles applicable to a performance stock option during the three-year performance period will result in applicable options being un-exercisable. The performance-based stock options have a maximum term of seven years from the grant date.

SEC source: 0001104659-23-066645 · tm2317471-2_4seq1.xml · derivative · entry 1

Marsh Andrew · CIK 0001431827 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,500,000

Underlying: Common Stock · 1,500,000 shares

Expires 2030-05-18

F1 · security: Awarded pursuant to Plug Power Inc.'s 2021 Stock Option and Incentive Plan, as amended.

F2 · derivative.exercise_date: Up to one-third (1/3) of the shares underlying the performance stock options will vest and become exercisable on each of the first three anniversaries of the grant date, provided that the daily volume weighted average price ("VWAP") of the Company's common stock during any 30 consecutive trading day period in the three year performance period following the grant date of the stock options equals or exceeds certain levels.

F3 · derivative.exercise_date: One-third (1/3) of the shares underlying the performance stock options will be deemed to have satisfied the performance-based vesting and will be eligible to vest over time if the VWAP during any 30 consecutive trading day period equals $9.84; an additional one-third (1/3) of the shares underlying the options will be deemed to have satisfied the performance-based vesting and will be eligible to vest over time if the VWAP during any 30 consecutive trading day period equals $11.81; and the remaining one-third (1/3) of the shares underlying the options will be deemed to have satisfied the performance-based vesting and will be eligible to vest over time if the VWAP during any 30 consecutive trading day period equals or exceeds $13.77.

F4 · derivative.exercise_date: There will be no interpolation for the performance stock option if the VWAP falls between any two stock price hurdles. Failure to achieve any of the stock price hurdles applicable to a performance stock option during the three-year performance period will result in applicable options being un-exercisable. The performance-based stock options have a maximum term of seven years from the grant date.

SEC source: 0001104659-23-066641 · tm2317471-1_4seq1.xml · derivative · entry 1

Shrestha Sanjay K · CIK 0001775802 · GM, EnergySolutions, CSO & EVP

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 750,000

Underlying: Common Stock · 750,000 shares

Expires 2030-05-18

F1 · security: Awarded pursuant to Plug Power Inc.'s 2021 Stock Option and Incentive Plan, as amended.

F2 · derivative.exercise_date: Up to one-third (1/3) of the shares underlying the performance stock options will vest and become exercisable on each of the first three anniversaries of the grant date, provided that the daily volume weighted average price ("VWAP") of the Company's common stock during any 30 consecutive trading day period in the three year performance period following the grant date of the stock options equals or exceeds certain levels.

F3 · derivative.exercise_date: One-third (1/3) of the shares underlying the performance stock options will be deemed to have satisfied the performance-based vesting and will be eligible to vest over time if the VWAP during any 30 consecutive trading day period equals $9.84; an additional one-third (1/3) of the shares underlying the options will be deemed to have satisfied the performance-based vesting and will be eligible to vest over time if the VWAP during any 30 consecutive trading day period equals $11.81; and the remaining one-third (1/3) of the shares underlying the options will be deemed to have satisfied the performance-based vesting and will be eligible to vest over time if the VWAP during any 30 consecutive trading day period equals or exceeds $13.77.

F4 · derivative.exercise_date: There will be no interpolation for the performance stock option if the VWAP falls between any two stock price hurdles. Failure to achieve any of the stock price hurdles applicable to a performance stock option during the three-year performance period will result in applicable options being un-exercisable. The performance-based stock options have a maximum term of seven years from the grant date.

SEC source: 0001104659-23-045095 · tm2312823-2_4seq1.xml · nonDerivative · entry 1

Hull Martin Daniel · CIK 0001637696 · Corporate Controller and CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 184,397

F1 · kind: Tendered to Issuer to satisfy tax withholding obligations of the Reporting Person incurred in connection with the vesting of the Reporting Person's restricted stock awards.

F2 · price: Pursuant to the Plug Power Inc. 2021 Stock Option and Incentive Plan, as amended, each share was tendered to Issuer at the price per share on the closing date of April 5, 2023, which is the date prior to the date withholding was effected.

SEC source: 0001104659-23-042139 · tm2311865-2_4seq1.xml · nonDerivative · entry 1

MCNAMEE GEORGE C · CIK 0001008001 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 614,837

F1 · kind: Compensation awarded to directors pursuant to Plug Power Inc.'s Non-Employee Directors Compensation Plan.

SEC source: 0001104659-23-042157 · tm2311865-8_4seq1.xml · nonDerivative · entry 1

Mahtani Kavita · CIK 0001923759 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,331

F1 · kind: Compensation awarded to directors pursuant to Plug Power Inc.'s Non-Employee Directors Compensation Plan.

SEC source: 0001104659-23-042155 · tm2311865-7_4seq1.xml · nonDerivative · entry 1

Schneider Lucas P · CIK 0001702795 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 135,302

F1 · kind: Compensation awarded to directors pursuant to Plug Power Inc.'s Non-Employee Directors Compensation Plan.

SEC source: 0001104659-23-042153 · tm2311865-6_4seq1.xml · nonDerivative · entry 1

BUA JEAN A · CIK 0001183333 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,497

F1 · kind: Compensation awarded to directors pursuant to Plug Power Inc.'s Non-Employee Directors Compensation Plan.

SEC source: 0001104659-23-042144 · tm2311865-5_4seq1.xml · nonDerivative · entry 1

Kenausis Gregory · CIK 0001590994 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 105,900

F1 · kind: Compensation awarded to directors pursuant to Plug Power Inc.'s Non-Employee Directors Compensation Plan.

SEC source: 0001104659-23-042143 · tm2311865-4_4seq1.xml · nonDerivative · entry 1

HELMER MAUREEN O · CIK 0001279977 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 129,858

F1 · kind: Compensation awarded to directors pursuant to Plug Power Inc.'s Non-Employee Directors Compensation Plan.

SEC source: 0001104659-23-042140 · tm2311865-3_4seq1.xml · nonDerivative · entry 1

Silver Jonathan M · CIK 0001745274 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 61,641

F1 · kind: Compensation awarded to directors pursuant to Plug Power Inc.'s Non-Employee Directors Compensation Plan.

SEC source: 0001104659-23-042134 · tm2311865-1_4seq1.xml · nonDerivative · entry 1

WILLIS GARY K · CIK 0001121475 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 427,740

F1 · kind: Compensation awarded to directors pursuant to Plug Power Inc.'s Non-Employee Directors Compensation Plan.

SEC source: 0001104659-23-045092 · tm2312823-1_4seq1.xml · nonDerivative · entry 1

Hoefelmann Dirk Ole · CIK 0001893776 · GM, Electrolyzers & Exec VP

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 280,064

F1 · kind: Tendered to Issuer to satisfy tax withholding obligations of the Reporting Person incurred in connection with the vesting of the Reporting Person's restricted stock awards.

F2 · price: Pursuant to the Plug Power Inc. 2021 Stock Option and Incentive Plan, as amended, each share was tendered to Issuer at the price per share on the closing date of March 2, 2023, which is the date prior to the date withholding was effected.

SEC source: 0001104659-23-001397 · tm231720-8_4seq1.xml · nonDerivative · entry 1

MCNAMEE GEORGE C · CIK 0001008001 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 616,437

F1 · kind: Compensation awarded to directors pursuant to Plug Power Inc.'s Non-Employee Directors Compensation Plan.

SEC source: 0001104659-23-001396 · tm231720-7_4seq1.xml · nonDerivative · entry 1

WILLIS GARY K · CIK 0001121475 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 426,460

F1 · kind: Compensation awarded to directors pursuant to Plug Power Inc.'s Non-Employee Directors Compensation Plan.

SEC source: 0001104659-23-001389 · tm231720-4_4seq1.xml · nonDerivative · entry 1

Mahtani Kavita · CIK 0001923759 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,478

F1 · kind: Compensation awarded to directors pursuant to Plug Power Inc.'s Non-Employee Directors Compensation Plan.

SEC source: 0001104659-23-001394 · tm231720-6_4seq1.xml · nonDerivative · entry 1

Silver Jonathan M · CIK 0001745274 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 59,935

F1 · kind: Compensation awarded to directors pursuant to Plug Power Inc.'s Non-Employee Directors Compensation Plan.

SEC source: 0001104659-23-001392 · tm231720-5_4seq1.xml · nonDerivative · entry 1

Schneider Lucas P · CIK 0001702795 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 134,555

F1 · kind: Compensation awarded to directors pursuant to Plug Power Inc.'s Non-Employee Directors Compensation Plan.

SEC source: 0001104659-23-001388 · tm231720-3_4seq1.xml · nonDerivative · entry 1

Kenausis Gregory · CIK 0001590994 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 104,330

F1 · kind: Compensation awarded to directors pursuant to Plug Power Inc.'s Non-Employee Directors Compensation Plan.

SEC source: 0001104659-23-001387 · tm231720-2_4seq1.xml · nonDerivative · entry 1

HELMER MAUREEN O · CIK 0001279977 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 128,685

F1 · kind: Compensation awarded to directors pursuant to Plug Power Inc.'s Non-Employee Directors Compensation Plan.

SEC source: 0001104659-23-001385 · tm231720-1_4seq1.xml · nonDerivative · entry 1

BUA JEAN A · CIK 0001183333 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,590

F1 · kind: Compensation awarded to directors pursuant to Plug Power Inc.'s Non-Employee Directors Compensation Plan.

SEC source: 0001104659-23-020861 · tm236571-1_5seq1.xml · nonDerivative · entry 1

MCNAMEE GEORGE C · CIK 0001008001 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 611,443

F1 · kind: Represents donations to not-for-profit educational institutions.

F2 · balance_after: The amount reported in Table I, Column 5 reflects the aggregate number of shares held by the Reporting Person as of December 31, 2022, and does not include shares acquired in subsequent transactions. As of the filing date, the Reporting Person directly holds 612,757 shares of Common Stock.

SEC source: 0001104659-22-110068 · tm2228606-2_4seq1.xml · derivative · entry 2

Hull Martin Daniel · CIK 0001637696 · Corporate Controller and CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 35,000

Underlying: Common Stock · 35,000 shares

Expires 2032-10-17

F2 · security: Awarded pursuant to the Plug Power Inc. 2021 Stock Option and Incentive Plan, as amended.

F3 · derivative.exercise_date: This option shall vest in three substantially equal installments beginning on the first anniversary of the grant date.

SEC source: 0001104659-22-110068 · tm2228606-2_4seq1.xml · nonDerivative · entry 1

Hull Martin Daniel · CIK 0001637696 · Corporate Controller and CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 203,293

F1 · shares: Consists of a restricted stock award made pursuant to the Plug Power Inc. 2021 Stock Option and Incentive Plan, as amended. The restricted stock vests in three substantially equal installments beginning on the first anniversary of the grant date.

SEC source: 0001104659-22-110067 · tm2228606-1_4seq1.xml · derivative · entry 3

Hoefelmann Dirk Ole · CIK 0001893776 · GM, Electrolyzers & Exec VP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 100,000

Underlying: Common Stock · 100,000 shares

Expires 2032-10-17

F3 · security: Awarded pursuant to the Plug Power Inc. 2021 Stock Option and Incentive Plan, as amended.

F4 · derivative.exercise_date: This option shall vest in three substantially equal installments beginning on the first anniversary of the grant date.

SEC source: 0001104659-22-110067 · tm2228606-1_4seq1.xml · nonDerivative · entry 1

Hoefelmann Dirk Ole · CIK 0001893776 · GM, Electrolyzers & Exec VP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 350,000

F1 · shares: Consists of a restricted stock award made pursuant to the Plug Power Inc. 2021 Stock Option and Incentive Plan, as amended. The restricted stock vests in three substantially equal installments beginning on the first anniversary of the grant date.

SEC source: 0001104659-23-051754 · tm2314036-1_4aseq1.xml · derivative · entry 1

Hoefelmann Dirk Ole · CIK 0001893776 · GM, Electrolyzers & Exec VP

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 100,000

Underlying: Common Stock · 100,000 shares

Expires 2032-10-17

F1 · security: Awarded pursuant to the Plug Power Inc. 2021 Stock Option and Incentive Plan, as amended.

F2 · derivative.exercise_date: This option shall vest in three substantially equal installments beginning on the first anniversary of the grant date.

SEC source: 0001104659-22-106332 · tm2227516-5_4seq1.xml · nonDerivative · entry 1

MCNAMEE GEORGE C · CIK 0001008001 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 615,123

F1 · kind: Compensation awarded to directors pursuant to the Plug Power Inc. Non-Employee Director Compensation Plan.

SEC source: 0001104659-22-106340 · tm2227516-8_4seq1.xml · nonDerivative · entry 1

WILLIS GARY K · CIK 0001121475 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 425,551

F1 · kind: Compensation awarded to directors pursuant to the Plug Power Inc. Non-Employee Director Compensation Plan.

SEC source: 0001104659-22-106337 · tm2227516-7_4seq1.xml · nonDerivative · entry 1

Silver Jonathan M · CIK 0001745274 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 58,621

F1 · kind: Compensation awarded to directors pursuant to the Plug Power Inc. Non-Employee Director Compensation Plan.

SEC source: 0001104659-22-106333 · tm2227516-6_4seq1.xml · nonDerivative · entry 1

Schneider Lucas P · CIK 0001702795 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 133,898

F1 · kind: Compensation awarded to directors pursuant to the Plug Power Inc. Non-Employee Director Compensation Plan.

SEC source: 0001104659-22-106331 · tm2227516-4_4seq1.xml · nonDerivative · entry 1

Mahtani Kavita · CIK 0001923759 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,720

F1 · kind: Compensation awarded to directors pursuant to the Plug Power Inc. Non-Employee Director Compensation Plan.

SEC source: 0001104659-22-106329 · tm2227516-3_4seq1.xml · nonDerivative · entry 1

Kenausis Gregory · CIK 0001590994 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 103,345

F1 · kind: Compensation awarded to directors pursuant to the Plug Power Inc. Non-Employee Director Compensation Plan.

SEC source: 0001104659-22-106326 · tm2227516-2_4seq1.xml · nonDerivative · entry 1

HELMER MAUREEN O · CIK 0001279977 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 127,826

F1 · kind: Compensation awarded to directors pursuant to the Plug Power Inc. Non-Employee Director Compensation Plan.

SEC source: 0001104659-22-106324 · tm2227516-1_4seq1.xml · nonDerivative · entry 1

BUA JEAN A · CIK 0001183333 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,782

F1 · kind: Compensation awarded to directors pursuant to the Plug Power Inc. Non-Employee Director Compensation Plan.

SEC source: 0001104659-22-124247 · tm2231922-8_4seq1.xml · nonDerivative · entry 2

Shrestha Sanjay K · CIK 0001775802 · CSO & GM, Energy Solutions

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 198,033

F1 · kind: Tendered to Issuer to satisfy tax withholding obligations of the Reporting Person incurred in connection with the vesting of the Reporting Person's restricted stock award.

F5 · price: Pursuant to the Plug Power Inc. Third Amended and Restated 2011 Stock Option and Incentive Plan, each share was tendered to Issuer at the price per share on the closing date of September 27, 2022, which is the date prior to the date withholding was effected.

SEC source: 0001104659-22-124245 · tm2231922-7_4seq1.xml · nonDerivative · entry 2

Schmidt Keith · CIK 0001389235 · GM New Mkts & Pres New Prd Dv

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 417,971

F1 · kind: Tendered to Issuer to satisfy tax withholding obligations of the Reporting Person incurred in connection with the vesting of the Reporting Person's restricted stock award.

F5 · price: Pursuant to the Plug Power Inc. Third Amended and Restated 2011 Stock Option and Incentive Plan, each share was tendered to Issuer at the price per share on the closing date of September 27, 2022, which is the date prior to the date withholding was effected.

SEC source: 0001104659-22-124244 · tm2231922-6_4seq1.xml · nonDerivative · entry 2

MIDDLETON PAUL B · CIK 0001224978 · CFO & Executive VP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 243,406

F1 · kind: Tendered to Issuer to satisfy tax withholding obligations of the Reporting Person incurred in connection with the vesting of the Reporting Person's restricted stock award.

F5 · price: Pursuant to the Plug Power Inc. Third Amended and Restated 2011 Stock Option and Incentive Plan, each share was tendered to Issuer at the price per share on the closing date of September 27, 2022, which is the date prior to the date withholding was effected.

SEC source: 0001104659-22-124241 · tm2231922-5_4seq1.xml · nonDerivative · entry 2

Marsh Andrew · CIK 0001431827 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 874,453

F1 · kind: Tendered to Issuer to satisfy tax withholding obligations of the Reporting Person incurred in connection with the vesting of the Reporting Person's restricted stock award.

F5 · price: Pursuant to the Plug Power Inc. Third Amended and Restated 2011 Stock Option and Incentive Plan, each share was tendered to Issuer at the price per share on the closing date of September 27, 2022, which is the date prior to the date withholding was effected.

SEC source: 0001104659-22-124240 · tm2231922-4_4seq1.xml · nonDerivative · entry 3

Hull Martin Daniel · CIK 0001637696 · Corporate Controller and CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 164,371

F1 · kind: Tendered to Issuer to satisfy tax withholding obligations of the Reporting Person incurred in connection with the vesting of the Reporting Person's restricted stock awards.

F7 · price: Pursuant to the Plug Power Inc. Third Amended and Restated 2011 Stock Option and Incentive Plan, each share was tendered to Issuer at the price per share on the closing date of September 27, 2022, which is the date prior to the date withholding was effected.

SEC source: 0001104659-22-124238 · tm2231922-2_4seq1.xml · nonDerivative · entry 2

Crespo Jose Luis · CIK 0001893770 · GM, MATL Handling, Key Accts

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 282,567

F1 · kind: Tendered to Issuer to satisfy tax withholding obligations of the Reporting Person incurred in connection with the vesting of the Reporting Person's restricted stock award.

F3 · price: Pursuant to the Plug Power Inc. Third Amended and Restated 2011 Stock Option and Incentive Plan, each share was tendered to Issuer at the price per share on the closing date of September 27, 2022, which is the date prior to the date withholding was effected.

SEC source: 0001104659-22-124237 · tm2231922-1_4seq1.xml · nonDerivative · entry 2

Conway Gerard L JR · CIK 0001308706 · Gen. Coun, Corp Sec., Exec. VP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 228,978

F1 · kind: Tendered to Issuer to satisfy tax withholding obligations of the Reporting Person incurred in connection with the vesting of the Reporting Person's restricted stock award.

F5 · price: Pursuant to the Plug Power Inc. Third Amended and Restated 2011 Stock Option and Incentive Plan, each share was tendered to Issuer at the price per share on the closing date of September 27, 2022, which is the date prior to the date withholding was effected.