PLUG

SEC source: 0001104659-22-001516 · tm221646-8_4seq1.xml · nonDerivative · entry 1

Silver Jonathan M · CIK 0001745274 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 49,510

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

SEC source: 0001104659-22-001513 · tm221646-7_4seq1.xml · nonDerivative · entry 1

Schneider Lucas P · CIK 0001702795 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 125,948

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

SEC source: 0001104659-22-001512 · tm221646-6_4seq1.xml · nonDerivative · entry 1

WILLIS GARY K · CIK 0001121475 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 417,155

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

SEC source: 0001104659-22-001510 · tm221646-5_4seq1.xml · nonDerivative · entry 1

Roth Johannes Minho · CIK 0001590334 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 233,466

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

SEC source: 0001104659-22-001497 · tm221646-3_4seq1.xml · nonDerivative · entry 1

Kenausis Gregory · CIK 0001590994 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 95,189

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

SEC source: 0001104659-22-001489 · tm221646-1_4seq.xml · nonDerivative · entry 1

Harriman Kim · CIK 0001847319 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,577

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

SEC source: 0001104659-22-001490 · tm221646-2_4seq1.xml · nonDerivative · entry 1

HELMER MAUREEN O · CIK 0001279977 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 119,519

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

SEC source: 0001104659-21-123063 · tm2129304-3_4seq1.xml · nonDerivative · entry 1

MCNAMEE GEORGE C · CIK 0001008001 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 605,436

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

SEC source: 0001104659-21-123073 · tm2129304-8_4seq1.xml · nonDerivative · entry 1

Silver Jonathan M · CIK 0001745274 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 48,934

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

SEC source: 0001104659-21-123070 · tm2129304-7_4seq1.xml · nonDerivative · entry 1

WILLIS GARY K · CIK 0001121475 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 416,756

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

SEC source: 0001104659-21-123069 · tm2129304-6_4seq1.xml · nonDerivative · entry 1

Schneider Lucas P · CIK 0001702795 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 125,660

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

SEC source: 0001104659-21-123068 · tm2129304-5_4seq1.xml · nonDerivative · entry 1

Roth Johannes Minho · CIK 0001590334 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 233,032

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

SEC source: 0001104659-21-123064 · tm2129304-4_4seq1.xml · nonDerivative · entry 1

Kenausis Gregory · CIK 0001590994 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 94,835

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

SEC source: 0001104659-21-123062 · tm2129304-2_4seq1.xml · nonDerivative · entry 1

HELMER MAUREEN O · CIK 0001279977 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 119,143

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

SEC source: 0001104659-21-123060 · tm2129304-1_4seq1.xml · nonDerivative · entry 1

Harriman Kim · CIK 0001847319 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,245

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

SEC source: 0001104659-22-054638 · tm2214070-6_4seq1.xml · nonDerivative · entry 1

Schmid Keith · CIK 0001590336 · COO & Sr. VP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 403,579

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. The initial grant of the restricted stock award was reported on a Form 4 filed on September 30, 2020, but was inadvertently described in the accompanying footnote as a restricted stock unit award instead of a restricted stock award.

SEC source: 0001104659-22-054641 · tm2214070-7_4seq1.xml · nonDerivative · entry 1

Shrestha Sanjay K · CIK 0001775802 · Chief Strategy Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 213,146

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. The initial grant of the restricted stock award was reported on a Form 4 filed on September 30, 2020, but was inadvertently described in the accompanying footnote as a restricted stock unit award instead of a restricted stock award.

SEC source: 0001104659-22-054635 · tm2214070-4_4seq1.xml · nonDerivative · entry 1

Marsh Andrew · CIK 0001431827 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 859,048

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. The initial grant of the restricted stock award was reported on a Form 4 filed on September 30, 2020, but was inadvertently described in the accompanying footnote as a restricted stock unit award instead of a restricted stock award.

SEC source: 0001104659-22-054637 · tm2214070-5_4seq1.xml · nonDerivative · entry 1

MIDDLETON PAUL B · CIK 0001224978 · CFO & Senior VP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 246,098

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. The initial grant of the restricted stock award was reported on a Form 4 filed on September 30, 2020, but was inadvertently described in the accompanying footnote as a restricted stock unit award instead of a restricted stock award.

SEC source: 0001104659-22-054630 · tm2214070-3_4seq1.xml · nonDerivative · entry 1

Hull Martin Daniel · CIK 0001637696 · Corporate Controller and CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 63,235

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. The initial grant of the restricted stock award was reported on a Form 4 filed on September 30, 2020, but was inadvertently described in the accompanying footnote as a restricted stock unit award instead of a restricted stock award.

F2 · balance_after: Does not reflect previously reported transactions that occurred after September 28, 2021.

SEC source: 0001104659-22-054629 · tm2214070-1_4seq1.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 223,625

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. The initial grant of the restricted stock award was reported on a Form 4 filed on September 30, 2020, but was inadvertently described in the accompanying footnote as a restricted stock unit award instead of a restricted stock award.

SEC source: 0001104659-21-136344 · tm2131018-6_4seq1.xml · derivative · entry 2

Hull Martin Daniel · CIK 0001637696 · Corporate Controller and CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,500

Underlying: Common Stock · 17,500 shares

Expires 2031-09-22

F2 · security: Awarded pursuant to Plug Power's 2021 Stock Option and Incentive Plan.

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

SEC source: 0001104659-21-136344 · tm2131018-6_4seq1.xml · nonDerivative · entry 1

Hull Martin Daniel · CIK 0001637696 · Corporate Controller and CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 68,293

F1 · shares: Consists of a restricted stock award made pursuant to Plug Power's 2021 Stock Option and Incentive Plan. The restricted stock units vest in three substantially equal installments beginning on the first anniversary of the grant date.

SEC source: 0001104659-21-136342 · tm2131018-5_4seq1.xml · derivative · entry 1

Shrestha Sanjay K · CIK 0001775802 · Chief Strategy Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,000,000

Underlying: Common Stock · 2,000,000 shares

Expires 2028-09-22

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

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 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 ("VWAP") equals or exceeds certain levels. 25% 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 equals $35; an additional 25% 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 equals $50; and the remaining 50% 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 equals or exceeds $100.

F3 · derivative.exercise_date: If the VWAP falls between two of the stock price hurdles, an incremental number of shares underlying the options will become exercisable based on linear interpolation in $1 increments. 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: 0001104659-21-136335 · tm2131018-3_4seq1.xml · derivative · entry 1

MIDDLETON PAUL B · CIK 0001224978 · CFO & Senior VP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,000,000

Underlying: Common Stock · 2,000,000 shares

Expires 2028-09-22

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

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 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 ("VWAP") equals or exceeds certain levels. 25% 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 equals $35; an additional 25% 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 equals $50; and the remaining 50% of the shares underlying the options will be deemed to have satisfied the performancebased vesting and will be eligible to vest over time if the VWAP equals or exceeds $100.

F3 · derivative.exercise_date: If the VWAP falls between two of the stock price hurdles, an incremental number of shares underlying the options will become exercisable based on linear interpolation in $1 increments. 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: 0001104659-21-136339 · tm2131018-4_4seq1.xml · derivative · entry 1

Schmid Keith · CIK 0001590336 · COO & Sr. VP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,300,000

Underlying: Common Stock · 1,300,000 shares

Expires 2028-09-22

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

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 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 ("VWAP") equals or exceeds certain levels. 25% 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 equals $35; an additional 25% 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 equals $50; and the remaining 50% 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 equals or exceeds $100.

F3 · derivative.exercise_date: If the VWAP falls between two of the stock price hurdles, an incremental number of shares underlying the options will become exercisable based on linear interpolation in $1 increments. 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: 0001104659-21-136332 · tm2131018-2_4seq1.xml · derivative · entry 1

Marsh Andrew · CIK 0001431827 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,000,000

Underlying: Common Stock · 4,000,000 shares

Expires 2028-09-22

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

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 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 ("VWAP") equals or exceeds certain levels. 25% of the shares underlying the performance stock option will be deemed to have satisfied the performance-based vesting and will be eligible to vest over time if the VWAP equals or exceeds $35;

F3 · derivative.exercise_date: an additional 25% of the shares underlying the option will be deemed to have satisfied the performance-based vesting and will be eligible to vest over time if the VWAP equals or exceeds $50; an additional 16.675% of the shares underlying the option will be deemed to have satisfied the performance-based vesting and will be eligible to vest over time if the VWAP equals or exceeds $65; an additional 16.65% of the shares underlying the option will be deemed to have satisfied the performance-based vesting and will be eligible to vest over time if the VWAP equals or exceeds $80; and the remaining 16.675% of the shares underlying the option will be deemed to have satisfied the performance-based vesting and will be eligible to vest over time if the VWAP equals or exceeds $100.

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 the applicable options being un-exercisable. The performance-based stock options have a maximum term of seven years from the grant date.

SEC source: 0001104659-21-136330 · tm2131018-1_4seq1.xml · derivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,800,000

Underlying: Common Stock · 1,800,000 shares

Expires 2028-09-22

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

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 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 ("VWAP") equals or exceeds certain levels. 25% 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 equals $35; an additional 25% 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 equals $50; and the remaining 50% 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 equals or exceeds $100.

F3 · derivative.exercise_date: If the VWAP falls between two of the stock price hurdles, an incremental number of shares underlying the options will become exercisable based on linear interpolation in $1 increments. 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: 0001104659-21-111564 · tm2126655-3_4seq1.xml · derivative · entry 3

Marsh Andrew · CIK 0001431827 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 166,667 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Each restricted stock unit is the equivalent of one share of Plug Power Inc. common stock.

F3 · derivative.exercise_date: On August 28, 2018, the Reporting Person was granted 500,000 restricted stock units, vesting in three substantially equal annual installments beginning on the first anniversary of the grant date.

F3 · derivative.expiration_date: On August 28, 2018, the Reporting Person was granted 500,000 restricted stock units, vesting in three substantially equal annual installments beginning on the first anniversary of the grant date.

SEC source: 0001104659-21-111564 · tm2126655-3_4seq1.xml · nonDerivative · entry 2

Marsh Andrew · CIK 0001431827 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 947,360

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 unit awards.

SEC source: 0001104659-21-111564 · tm2126655-3_4seq1.xml · nonDerivative · entry 1

Marsh Andrew · CIK 0001431827 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,027,644

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: Each restricted stock unit is the equivalent of one share of Plug Power Inc. common stock.

SEC source: 0001104659-21-111566 · tm2126655-5_4seq1.xml · derivative · entry 3

Schmid Keith · CIK 0001590336 · COO & Sr. VP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 83,333 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Each restricted stock unit is the equivalent of one share of Plug Power Inc. common stock.

F3 · derivative.exercise_date: On August 28, 2018, the Reporting Person was granted 250,000 restricted stock units, vesting in three substantially equal annual installments beginning on the first anniversary of the grant date.

F3 · derivative.expiration_date: On August 28, 2018, the Reporting Person was granted 250,000 restricted stock units, vesting in three substantially equal annual installments beginning on the first anniversary of the grant date.

SEC source: 0001104659-21-111566 · tm2126655-5_4seq1.xml · nonDerivative · entry 2

Schmid Keith · CIK 0001590336 · COO & Sr. VP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 439,000

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 unit awards.

SEC source: 0001104659-21-111566 · tm2126655-5_4seq1.xml · nonDerivative · entry 1

Schmid Keith · CIK 0001590336 · COO & Sr. VP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 483,275

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: Each restricted stock unit is the equivalent of one share of Plug Power Inc. common stock.

SEC source: 0001104659-21-111565 · tm2126655-4_4seq1.xml · derivative · entry 3

MIDDLETON PAUL B · CIK 0001224978 · CFO & Senior VP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 66,667 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Each restricted stock unit is the equivalent of one share of Plug Power Inc. common stock.

F3 · derivative.exercise_date: On August 28, 2018, the Reporting Person was granted 200,000 restricted stock units, vesting in three substantially equal annual installments beginning on the first anniversary of the grant date.

F3 · derivative.expiration_date: On August 28, 2018, the Reporting Person was granted 200,000 restricted stock units, vesting in three substantially equal annual installments beginning on the first anniversary of the grant date.

SEC source: 0001104659-21-111565 · tm2126655-4_4seq1.xml · nonDerivative · entry 2

MIDDLETON PAUL B · CIK 0001224978 · CFO & Senior VP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 278,065

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 unit awards.

SEC source: 0001104659-21-111565 · tm2126655-4_4seq1.xml · nonDerivative · entry 1

MIDDLETON PAUL B · CIK 0001224978 · CFO & Senior VP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 310,032

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: Each restricted stock unit is the equivalent of one share of Plug Power Inc. common stock.

SEC source: 0001104659-21-111562 · tm2126655-2_4seq1.xml · derivative · entry 3

Hull Martin Daniel · CIK 0001637696 · Corporate Controller and CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 13,333 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Each restricted stock unit is the equivalent of one share of Plug Power Inc. common stock.

F3 · derivative.exercise_date: On August 28, 2018, the Reporting Person was granted 40,000 restricted stock units, vesting in three substantially equal annual installments beginning on the first anniversary of the grant date.

F3 · derivative.expiration_date: On August 28, 2018, the Reporting Person was granted 40,000 restricted stock units, vesting in three substantially equal annual installments beginning on the first anniversary of the grant date.

SEC source: 0001104659-21-111562 · tm2126655-2_4seq1.xml · nonDerivative · entry 2

Hull Martin Daniel · CIK 0001637696 · Corporate Controller and CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 50,793

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 unit awards.

SEC source: 0001104659-21-111562 · tm2126655-2_4seq1.xml · nonDerivative · entry 1

Hull Martin Daniel · CIK 0001637696 · Corporate Controller and CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 57,107

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: Each restricted stock unit is the equivalent of one share of Plug Power Inc. common stock.

SEC source: 0001104659-21-111561 · tm2126655-1_4seq1.xml · derivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 66,667 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Each restricted stock unit is the equivalent of one share of Plug Power Inc. common stock.

F3 · derivative.exercise_date: On August 28, 2018, the Reporting Person was granted 200,000 restricted stock units, vesting in three substantially equal annual installments beginning on the first anniversary of the grant date.

F3 · derivative.expiration_date: On August 28, 2018, the Reporting Person was granted 200,000 restricted stock units, vesting in three substantially equal annual installments beginning on the first anniversary of the grant date.

SEC source: 0001104659-21-111561 · tm2126655-1_4seq1.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 253,451

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 unit awards.

SEC source: 0001104659-21-111561 · tm2126655-1_4seq1.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 287,538

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

F1 · price: Each restricted stock unit is the equivalent of one share of Plug Power Inc. common stock.

SEC source: 0001104659-21-108694 · tm2125715-1_4seq1.xml · derivative · entry 3

Conway Gerard L JR · CIK 0001308706 · Gen Counsel, Corp Sec, Sr VP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 66,667

Underlying: Common Stock · 66,666 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Each restricted stock unit is the equivalent of one share of Plug Power Inc. common stock.

F3 · derivative.exercise_date: On August 19, 2019, the Reporting Person was granted 200,000 restricted stock units, vesting in three substantially equal annual installments beginning on the first anniversary of the grant date.

F3 · derivative.expiration_date: On August 19, 2019, the Reporting Person was granted 200,000 restricted stock units, vesting in three substantially equal annual installments beginning on the first anniversary of the grant date.

SEC source: 0001104659-21-108694 · tm2125715-1_4seq1.xml · nonDerivative · entry 2

Conway Gerard L JR · CIK 0001308706 · Gen Counsel, Corp Sec, Sr VP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 220,871

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 unit awards.

SEC source: 0001104659-21-108694 · tm2125715-1_4seq1.xml · nonDerivative · entry 1

Conway Gerard L JR · CIK 0001308706 · Gen Counsel, Corp Sec, Sr VP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 252,185

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: Each restricted stock unit is the equivalent of one share of Plug Power Inc. common stock.

SEC source: 0001104659-21-108699 · tm2125715-5_4seq1.xml · derivative · entry 3

MIDDLETON PAUL B · CIK 0001224978 · CFO & Senior VP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 83,333

Underlying: Common Stock · 83,334 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Each restricted stock unit is the equivalent of one share of Plug Power Inc. common stock.

F3 · derivative.exercise_date: On August 19, 2019, the Reporting Person was granted 250,000 restricted stock units, vesting in three substantially equal annual installments beginning on the first anniversary of the grant date.

F3 · derivative.expiration_date: On August 19, 2019, the Reporting Person was granted 250,000 restricted stock units, vesting in three substantially equal annual installments beginning on the first anniversary of the grant date.

SEC source: 0001104659-21-108699 · tm2125715-5_4seq1.xml · nonDerivative · entry 2

MIDDLETON PAUL B · CIK 0001224978 · CFO & Senior VP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 243,365

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 unit awards.

SEC source: 0001104659-21-108699 · tm2125715-5_4seq1.xml · nonDerivative · entry 1

MIDDLETON PAUL B · CIK 0001224978 · CFO & Senior VP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 283,324

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: Each restricted stock unit is the equivalent of one share of Plug Power Inc. common stock.

SEC source: 0001104659-21-108698 · tm2125715-4_4seq1.xml · derivative · entry 3

Schmid Keith · CIK 0001590336 · COO & Sr. VP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 83,333

Underlying: Common Stock · 83,334 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Each restricted stock unit is the equivalent of one share of Plug Power Inc. common stock.

F3 · derivative.exercise_date: On August 19, 2019, the Reporting Person was granted 250,000 restricted stock units, vesting in three substantially equal annual installments beginning on the first anniversary of the grant date.

F3 · derivative.expiration_date: On August 19, 2019, the Reporting Person was granted 250,000 restricted stock units, vesting in three substantially equal annual installments beginning on the first anniversary of the grant date.