PLUG

SEC source: 0001104659-26-001513 · tm261957-5_4seq1.xml · nonDerivative · entry 1

Joggerst Patrick · CIK 0001556832 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 196,937

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

SEC source: 0001104659-26-001511 · tm261957-3_4seq1.xml · nonDerivative · entry 1

BONNEY MARK J · CIK 0001232607 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 212,504

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

SEC source: 0001104659-26-001512 · tm261957-4_4seq1.xml · nonDerivative · entry 1

HELMER MAUREEN O · CIK 0001279977 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 371,565

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

SEC source: 0001104659-26-001510 · tm261957-2_4seq1.xml · nonDerivative · entry 1

Angle Colin M · CIK 0001341689 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 105,919

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

SEC source: 0001104659-26-001509 · tm261957-1_4seq1.xml · nonDerivative · entry 1

WILLIS GARY K · CIK 0001121475 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 690,354

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

SEC source: 0001104659-25-122178 · tm2533817-1_4seq1.xml · nonDerivative · entry 1

Crespo Jose Luis · CIK 0001893770 · See Remarks

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 307,332

F1 · kind: This purchase was effected by the Reporting Person pursuant to a Rule 10b5-1 trading plan adopted on March 13, 2025.

SEC source: 0001104659-25-120726 · tm2533305-1_4seq1.xml · nonDerivative · entry 4

Haycraft Benjamin · CIK 0002085249 · CSO & GM EMEA

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 373,809

F1 · kind: These sales were effected by the Reporting Person pursuant to a Rule 10b5-1 trading plan adopted on June 13, 2025.

SEC source: 0001104659-25-118176 · tm2532694-1_4seq1.xml · nonDerivative · entry 1

Marsh Andrew · CIK 0001431827 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 930,546

F1 · kind: Shares issued pursuant to a previously disclosed executive compensation program, pursuant to which the Reporting Person elected to receive payment of a portion of his base salary and bonus for the fiscal year ending December 31, 2025 in shares of the Issuer's common stock issued under the Plug Power Inc. 2021 Stock Option and Incentive Plan, as amended. The shares were fully vested upon grant.

SEC source: 0001104659-25-110556 · tm2531082-1_4seq1.xml · nonDerivative · entry 1

Haycraft Benjamin · CIK 0002085249 · CSO & EVP of EMEA Region

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 467,583

F1 · kind: These sales were effected by the Reporting Person pursuant to a Rule 10b5-1 trading plan adopted on June 13, 2025.

SEC source: 0001104659-25-120726 · tm2533305-1_4seq1.xml · nonDerivative · entry 3

Haycraft Benjamin · CIK 0002085249 · CSO & GM EMEA

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 413,809

F2 · 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.

F4 · price: Pursuant to the Plan, each share was tendered to Issuer at the price per share on the closing date of November 6, 2025.

SEC source: 0001104659-25-106321 · tm2530120-1_4seq1.xml · nonDerivative · entry 1

Marsh Andrew · CIK 0001431827 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 918,343

F1 · kind: Shares issued pursuant to a previously disclosed executive compensation program, pursuant to which the Reporting Person elected to receive payment of a portion of his base salary and bonus for the fiscal year ending December 31, 2025 in shares of the Issuer's common stock issued under the Plug Power Inc. 2021 Stock Option and Incentive Plan, as amended. The shares were fully vested upon grant.

SEC source: 0001104659-25-120726 · tm2533305-1_4seq1.xml · nonDerivative · entry 2

Haycraft Benjamin · CIK 0002085249 · CSO & GM EMEA

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 449,766

F2 · 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.

F3 · price: Pursuant to the Plug Power Inc. 2021 Stock Option and Incentive Plan, as amended (the "Plan"), each share was tendered to Issuer at the price per share on the closing date of October 16, 2025.

SEC source: 0001104659-25-120726 · tm2533305-1_4seq1.xml · nonDerivative · entry 1

Haycraft Benjamin · CIK 0002085249 · CSO & GM EMEA

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 457,583

F1 · kind: These sales were effected by the Reporting Person pursuant to a Rule 10b5-1 trading plan adopted on June 13, 2025.

SEC source: 0001104659-25-097520 · tm2528186-1_4seq1.xml · nonDerivative · entry 1

Marsh Andrew · CIK 0001431827 · Director · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 908,928

F1 · kind: Shares issued pursuant to a previously disclosed executive compensation program, pursuant to which the Reporting Person elected to receive payment of a portion of his base salary and bonus for the fiscal year ending December 31, 2025 in shares of the Issuer's common stock issued under the Plug Power Inc. 2021 Stock Option and Incentive Plan, as amended. The shares were fully vested upon grant.

SEC source: 0001104659-25-096684 · tm2527965-1_4seq1.xml · nonDerivative · entry 1

MCNAMEE GEORGE C · CIK 0001008001 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 820,521

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

SEC source: 0001104659-25-096698 · tm2527965-8_4seq1.xml · nonDerivative · entry 1

Mahtani Kavita · CIK 0001923759 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 218,470

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

SEC source: 0001104659-25-096695 · tm2527965-7_4seq1.xml · nonDerivative · entry 1

Kenausis Gregory · CIK 0001590994 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 451,973

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

SEC source: 0001104659-25-096694 · tm2527965-6_4seq1.xml · nonDerivative · entry 1

Joggerst Patrick · CIK 0001556832 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 186,785

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

SEC source: 0001104659-25-096693 · tm2527965-5_4seq1.xml · nonDerivative · entry 1

HELMER MAUREEN O · CIK 0001279977 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 357,606

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

SEC source: 0001104659-25-096692 · tm2527965-4_4seq1.xml · nonDerivative · entry 1

BONNEY MARK J · CIK 0001232607 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 200,448

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

SEC source: 0001104659-25-096690 · tm2527965-3_4seq1.xml · nonDerivative · entry 1

Angle Colin M · CIK 0001341689 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 100,843

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

SEC source: 0001104659-25-096687 · tm2527965-2_4seq1.xml · nonDerivative · entry 1

WILLIS GARY K · CIK 0001121475 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 673,857

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

SEC source: 0001104659-25-091286 · tm2526337-1_4seq1.xml · nonDerivative · entry 1

Haycraft Benjamin · CIK 0002085249 · CSO & GM of EMEA Region

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 477,583

F1 · kind: These sales were effected by the Reporting Person pursuant to a Rule 10b5-1 trading plan adopted on June 13, 2025.

SEC source: 0001104659-25-088377 · tm2525594-4_4seq1.xml · derivative · entry 1

Fullerton Dean · CIK 0002032211 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,000,000

Underlying: Common Stock · 1,000,000 shares

Expires 2035-09-04

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

F2 · derivative.exercise_date: The shares underlying this stock option shall vest in three equal annual installments following the grant date, subject to the Reporting Person's continued service on each such vesting date.

SEC source: 0001104659-25-088376 · tm2525594-3_4seq1.xml · derivative · entry 1

Marsh Andrew · CIK 0001431827 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,250,000

Underlying: Common Stock · 2,250,000 shares

Expires 2035-09-04

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

F2 · derivative.exercise_date: The shares underlying this stock option shall vest in three equal annual installments following the grant date, subject to the Reporting Person's continued service on each such vesting date.

SEC source: 0001104659-25-088375 · tm2525594-2_4seq1.xml · derivative · entry 1

Crespo Jose Luis · CIK 0001893770 · Chief Revenue Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,000,000

Underlying: Common Stock · 1,000,000 shares

Expires 2035-09-04

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

F2 · derivative.exercise_date: The shares underlying this stock option shall vest in three equal annual installments following the grant date, subject to the Reporting Person's continued service on each such vesting date.

SEC source: 0001104659-25-088373 · tm2525594-1_4seq1.xml · derivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,000,000

Underlying: Common Stock · 1,000,000 shares

Expires 2035-09-04

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

F2 · derivative.exercise_date: The shares underlying this stock option shall vest in three equal annual installments following the grant date, subject to the Reporting Person's continued service on each such vesting date.

SEC source: 0001104659-25-089662 · tm2526042-1_4seq1.xml · derivative · entry 1

Haycraft Benjamin Toby Patrick · CIK 0002085249 · EVP, EMEA Region

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,000,000

Underlying: Common Stock · 1,000,000 shares

Expires 2035-09-04

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

F2 · derivative.exercise_date: The shares underlying this stock option shall vest in three equal annual installments following the grant date, subject to the Reporting Person's continued service on each such vesting date.

SEC source: 0001104659-25-089663 · tm2526042-2_4seq1.xml · nonDerivative · entry 2

Marsh Andrew · CIK 0001431827 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 890,604

F1 · kind: Shares issued pursuant to a previously disclosed executive compensation program, pursuant to which the Reporting Person elected to receive payment of a portion of his base salary and bonus for the fiscal year ending December 31, 2025 in shares of the Issuer's common stock issued under the Plug Power Inc. 2021 Stock Option and Incentive Plan, as amended. The shares were fully vested upon grant.

SEC source: 0001104659-25-089663 · tm2526042-2_4seq1.xml · nonDerivative · entry 1

Marsh Andrew · CIK 0001431827 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 872,133

F1 · kind: Shares issued pursuant to a previously disclosed executive compensation program, pursuant to which the Reporting Person elected to receive payment of a portion of his base salary and bonus for the fiscal year ending December 31, 2025 in shares of the Issuer's common stock issued under the Plug Power Inc. 2021 Stock Option and Incentive Plan, as amended. The shares were fully vested upon grant.

SEC source: 0001104659-25-068738 · tm2521163-1_4seq1.xml · nonDerivative · entry 1

Marsh Andrew · CIK 0001431827 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 852,165

F1 · kind: Shares issued pursuant to a previously disclosed executive compensation program, pursuant to which the Reporting Person elected to receive payment of a portion of his base salary and bonus for the fiscal year ending December 31, 2025 in shares of the Issuer's common stock issued under the Plug Power Inc. 2021 Stock Option and Incentive Plan, as amended. The shares were fully vested upon grant.

SEC source: 0001104659-25-070389 · tm2521653-8_4seq1.xml · derivative · entry 3

MCNAMEE GEORGE C · CIK 0001008001 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 76,531

Underlying: Common Stock · 76,531 shares

Expires 2035-07-03

F3 · 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.

F4 · derivative.exercise_date: The options shall vest in full on the earlier of (i) first anniversary of the grant date or (ii) the date of the next annual meeting which is at least fifty (50) weeks after the immediately preceding year's annual meeting.

SEC source: 0001104659-25-070389 · tm2521653-8_4seq1.xml · nonDerivative · entry 1

MCNAMEE GEORGE C · CIK 0001008001 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 809,523

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 shall vest in full on the earlier of (i) first anniversary of the grant date or (ii) the date of the next annual meeting which is at least fifty (50) weeks after the immediately preceding year's annual meeting.

SEC source: 0001104659-25-070387 · tm2521653-7_4seq1.xml · derivative · entry 2

Mahtani Kavita · CIK 0001923759 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 76,531

Underlying: Common Stock · 76,531 shares

Expires 2035-07-03

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 in full on the earlier of (i) first anniversary of the grant date or (ii) the date of the next annual meeting which is at least fifty (50) weeks after the immediately preceding year's annual meeting.

SEC source: 0001104659-25-070387 · tm2521653-7_4seq1.xml · nonDerivative · entry 1

Mahtani Kavita · CIK 0001923759 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 208,813

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 shall vest in full on the earlier of (i) first anniversary of the grant date or (ii) the date of the next annual meeting which is at least fifty (50) weeks after the immediately preceding year's annual meeting.

SEC source: 0001104659-25-070386 · tm2521653-6_4seq1.xml · derivative · entry 2

Kenausis Gregory · CIK 0001590994 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 76,531

Underlying: Common Stock · 76,531 shares

Expires 2035-07-03

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 in full on the earlier of (i) first anniversary of the grant date or (ii) the date of the next annual meeting which is at least fifty (50) weeks after the immediately preceding year's annual meeting.

SEC source: 0001104659-25-070386 · tm2521653-6_4seq1.xml · nonDerivative · entry 1

Kenausis Gregory · CIK 0001590994 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 443,523

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 shall vest in full on the earlier of (i) first anniversary of the grant date or (ii) the date of the next annual meeting which is at least fifty (50) weeks after the immediately preceding year's annual meeting.

SEC source: 0001104659-25-070385 · tm2521653-5_4seq1.xml · derivative · entry 2

Joggerst Patrick · CIK 0001556832 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 76,531

Underlying: Common Stock · 76,531 shares

Expires 2035-07-03

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 in full on the earlier of (i) first anniversary of the grant date or (ii) the date of the next annual meeting which is at least fifty (50) weeks after the immediately preceding year's annual meeting.

SEC source: 0001104659-25-070385 · tm2521653-5_4seq1.xml · nonDerivative · entry 1

Joggerst Patrick · CIK 0001556832 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 178,201

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 shall vest in full on the earlier of (i) first anniversary of the grant date or (ii) the date of the next annual meeting which is at least fifty (50) weeks after the immediately preceding year's annual meeting.

SEC source: 0001104659-25-070384 · tm2521653-4_4seq1.xml · derivative · entry 2

HELMER MAUREEN O · CIK 0001279977 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 76,531

Underlying: Common Stock · 76,531 shares

Expires 2035-07-03

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 in full on the earlier of (i) first anniversary of the grant date or (ii) the date of the next annual meeting which is at least fifty (50) weeks after the immediately preceding year's annual meeting.

SEC source: 0001104659-25-070384 · tm2521653-4_4seq1.xml · nonDerivative · entry 1

HELMER MAUREEN O · CIK 0001279977 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 345,803

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 shall vest in full on the earlier of (i) first anniversary of the grant date or (ii) the date of the next annual meeting which is at least fifty (50) weeks after the immediately preceding year's annual meeting.

SEC source: 0001104659-25-070380 · tm2521653-2_4seq1.xml · derivative · entry 2

Angle Colin M · CIK 0001341689 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 76,531

Underlying: Common Stock · 76,531 shares

Expires 2035-07-03

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 in full on the earlier of (i) first anniversary of the grant date or (ii) the date of the next annual meeting which is at least fifty (50) weeks after the immediately preceding year's annual meeting.

SEC source: 0001104659-25-070380 · tm2521653-2_4seq1.xml · nonDerivative · entry 1

Angle Colin M · CIK 0001341689 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 96,551

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 shall vest in full on the earlier of (i) first anniversary of the grant date or (ii) the date of the next annual meeting which is at least fifty (50) weeks after the immediately preceding year's annual meeting.

SEC source: 0001104659-25-070383 · tm2521653-3_4seq1.xml · derivative · entry 2

BONNEY MARK J · CIK 0001232607 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 76,531

Underlying: Common Stock · 76,531 shares

Expires 2035-07-03

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 in full on the earlier of (i) first anniversary of the grant date or (ii) the date of the next annual meeting which is at least fifty (50) weeks after the immediately preceding year's annual meeting.

SEC source: 0001104659-25-070383 · tm2521653-3_4seq1.xml · nonDerivative · entry 1

BONNEY MARK J · CIK 0001232607 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 190,255

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 shall vest in full on the earlier of (i) first anniversary of the grant date or (ii) the date of the next annual meeting which is at least fifty (50) weeks after the immediately preceding year's annual meeting.

SEC source: 0001104659-25-070378 · tm2521653-1_4seq1.xml · derivative · entry 2

WILLIS GARY K · CIK 0001121475 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 76,531

Underlying: Common Stock · 76,531 shares

Expires 2035-07-03

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 in full on the earlier of (i) first anniversary of the grant date or (ii) the date of the next annual meeting which is at least fifty (50) weeks after the immediately preceding year's annual meeting.

SEC source: 0001104659-25-070378 · tm2521653-1_4seq1.xml · nonDerivative · entry 1

WILLIS GARY K · CIK 0001121475 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 659,909

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 shall vest in full on the earlier of (i) first anniversary of the grant date or (ii) the date of the next annual meeting which is at least fifty (50) weeks after the immediately preceding year's annual meeting.

SEC source: 0001104659-25-065810 · tm2519809-8_4seq1.xml · nonDerivative · entry 1

MCNAMEE GEORGE C · CIK 0001008001 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 732,992

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

SEC source: 0001104659-25-065809 · tm2519809-7_4seq1.xml · nonDerivative · entry 1

WILLIS GARY K · CIK 0001121475 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 583,378

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

SEC source: 0001104659-25-065808 · tm2519809-6_4seq1.xml · nonDerivative · entry 1

Mahtani Kavita · CIK 0001923759 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 132,282

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