Hull Martin Daniel

SEC source: 0001104659-25-045524 · tm2514240-2_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: 179,873

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 4, 2025.

SEC source: 0001104659-24-110222 · tm2426551-1_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: 198,523

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 October 16, 2024.

SEC source: 0001104659-24-105836 · tm2425494-9_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: 204,339

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 September 20, 2024.

SEC source: 0001104659-24-085419 · tm2420760-3_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: 206,985

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 July 30, 2024.

SEC source: 0001104659-24-054969 · tm2413131-6_4seq1.xml · derivative · entry 1

Hull Martin Daniel · CIK 0001637696 · Corporate Controller and CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 200,000

Underlying: Common Stock · 200,000 shares

Expires 2034-04-26

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: 0001104659-23-121245 · tm2331556-1_4seq1.xml · derivative · entry 1

Hull Martin Daniel · CIK 0001637696 · Corporate Controller and CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 60,000

Underlying: Common Stock · 60,000 shares

Expires 2033-11-22

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: 0001104659-23-106505 · tm2327421-1_4seq1.xml · nonDerivative · entry 2

Hull Martin Daniel · CIK 0001637696 · Corporate Controller and CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 211,460

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.

F3 · price: Pursuant to the Plan, each share was tendered to Issuer at the price per share on the closing date of September 27, 2023.

SEC source: 0001104659-23-106505 · tm2327421-1_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: 216,751

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. Third Amended and Restated 2011 Stock Option and Incentive Plan (the "Plan"), each share was tendered to Issuer at the price per share on the closing date of September 21, 2023.

SEC source: 0001104659-23-086783 · tm2322588-1_4seq1.xml · derivative · entry 3

Hull Martin Daniel · CIK 0001637696 · Corporate Controller and CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 35,000

Underlying: Common Stock · 35,000 shares

Expires 2033-07-31

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: 0001104659-23-086783 · tm2322588-1_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: 219,397

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: 0001104659-23-045095 · 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: 0001104659-22-110068 · 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: 0001104659-22-124240 · 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: 0001104659-22-124240 · tm2231922-4_4seq1.xml · nonDerivative · entry 2

Hull Martin Daniel · CIK 0001637696 · Corporate Controller and CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 169,674

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.

F5 · kind: The initial grant of this restricted stock award was reported on a Form 4 filed on November 9, 2021, but was inadvertently described in the accompanying footnote as a restricted stock unit award instead of a restricted stock award.

F6 · 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 September 21, 2022, which is the date prior to the date withholding was effected.

SEC source: 0001104659-22-124240 · tm2231922-4_4seq1.xml · nonDerivative · entry 1

Hull Martin Daniel · CIK 0001637696 · Corporate Controller and CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 172,326

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 · kind: The initial grant of the restricted stock award was reported on a Form 4 filed on August 21, 2019, but was inadvertently disclosed as a restricted stock unit award instead of a 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 August 18, 2022, which is the date prior to the date withholding was effected.

F4 · balance_after: The total Amount of Securities Beneficially Owned in Table I, Column 5 reflects the addition of 16,667 shares of the restricted stock award that was previously reported inadvertently on Table II as part of a grant of 50,000 restricted stock units on the Form 4 filed on August 21, 2019.

SEC source: 0001104659-22-044277 · tm2212314-1_4seq1.xml · derivative · entry 2

Hull Martin Daniel · CIK 0001637696 · Corporate Controller and CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 100,000

Underlying: Common Stock · 100,000 shares

Expires 2032-04-06

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: 0001104659-22-044277 · tm2212314-1_4seq1.xml · nonDerivative · entry 1

Hull Martin Daniel · CIK 0001637696 · Corporate Controller and CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 168,293

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: 0001104659-22-054630 · 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: 0001104659-21-136344 · 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: 0001104659-21-111562 · 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: 0001104659-21-108695 · tm2125715-2_4seq1.xml · derivative · entry 3

Hull Martin Daniel · CIK 0001637696 · Corporate Controller and CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 16,667

Underlying: Common Stock · 16,666 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 50,000 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 50,000 restricted stock units, vesting in three substantially equal annual installments beginning on the first anniversary of the grant date.

SEC source: 0001104659-21-108695 · tm2125715-2_4seq1.xml · nonDerivative · entry 2

Hull Martin Daniel · CIK 0001637696 · Corporate Controller and CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 43,774

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: 0001104659-21-108695 · tm2125715-2_4seq1.xml · nonDerivative · entry 1

Hull Martin Daniel · CIK 0001637696 · Corporate Controller and CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 51,666

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: 0001104659-20-113053 · a4.xml · derivative · entry 5

Hull Martin Daniel · CIK 0001637696 · Corporate Controller and CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 33,333

Underlying: Common Stock · 16,667 shares

Expires 2029-08-19

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

F4 · derivative.exercise_date: On August 19, 2019, the Reporting Person was granted 50,000 stock options, vesting in three substantially equal installments beginning on the first anniversary of the grant date.

SEC source: 0001104659-20-113053 · a4.xml · derivative · entry 4

Hull Martin Daniel · CIK 0001637696 · Corporate Controller and CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,333

Underlying: Common Stock · 26,667 shares

Expires 2028-08-28

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.

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

SEC source: 0001104659-20-113053 · a4.xml · nonDerivative · entry 3

Hull Martin Daniel · CIK 0001637696 · Corporate Controller and CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 35,000

F1 · kind: Shares sold pursuant to a pre-established 10b5-1 trading plan effective as of September 2, 2020.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $14.66 to $15.00, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range.

SEC source: 0001104659-20-113053 · a4.xml · nonDerivative · entry 2

Hull Martin Daniel · CIK 0001637696 · Corporate Controller and CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 103,565

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

SEC source: 0001104659-20-113053 · a4.xml · nonDerivative · entry 1

Hull Martin Daniel · CIK 0001637696 · Corporate Controller and CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 86,898

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

SEC source: 0001104659-20-110510 · a4.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 2030-09-28

F2 · kind: Awarded pursuant to the Issuer's 2011 Stock Option and Incentive Plan.

F3 · derivative.exercise_date: On September 28, 2020, the Reporting Person was granted 35,000 stock options, vesting in three substantially equal installments beginning on the first anniversary of the grant date.

SEC source: 0001104659-20-110510 · a4.xml · nonDerivative · entry 1

Hull Martin Daniel · CIK 0001637696 · Corporate Controller and CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 60,231

F1 · kind: Consists of a restricted stock unit award made pursuant to the Issuer's 2011 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: 0001104659-20-101450 · a4.xml · derivative · entry 9

Hull Martin Daniel · CIK 0001637696 · Corporate Controller and CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 33,333 shares

Expires 2027-08-31

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.

F6 · derivative.exercise_date: 33,334 options vested on August 31, 2018, 33,333 options vested on August 31, 2019 and 33,333 options vested on August 31, 2020.

SEC source: 0001104659-20-101450 · a4.xml · nonDerivative · entry 6

Hull Martin Daniel · CIK 0001637696 · Corporate Controller and CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 25,231

F3 · kind: Shares sold pursuant to a pre-established 10b5-1 trading plan effective as of March 16, 2020.

SEC source: 0001104659-20-101450 · a4.xml · nonDerivative · entry 5

Hull Martin Daniel · CIK 0001637696 · Corporate Controller and CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 58,564

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

SEC source: 0001104659-20-101450 · a4.xml · derivative · entry 8

Hull Martin Daniel · CIK 0001637696 · Corporate Controller and CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,333

Underlying: Common Stock · 13,334 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.

F5 · 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.

F5 · 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: 0001104659-20-101450 · a4.xml · nonDerivative · entry 4

Hull Martin Daniel · CIK 0001637696 · Corporate Controller and CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 25,231

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: 0001104659-20-101450 · a4.xml · nonDerivative · entry 3

Hull Martin Daniel · CIK 0001637696 · Corporate Controller and CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 31,278

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: 0001104659-20-101450 · a4.xml · derivative · entry 7

Hull Martin Daniel · CIK 0001637696 · Corporate Controller and CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 33,333

Underlying: Common Stock · 16,667 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.

F4 · derivative.exercise_date: On August 19, 2019, the Reporting Person was granted 50,000 restricted stock units, vesting in three substantially equal annual installments beginning on the first anniversary of the grant date.

F4 · derivative.expiration_date: On August 19, 2019, the Reporting Person was granted 50,000 restricted stock units, vesting in three substantially equal annual installments beginning on the first anniversary of the grant date.

SEC source: 0001104659-20-101450 · a4.xml · nonDerivative · entry 2

Hull Martin Daniel · CIK 0001637696 · Corporate Controller and CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,944

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: 0001104659-20-101450 · a4.xml · nonDerivative · entry 1

Hull Martin Daniel · CIK 0001637696 · Corporate Controller and CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 25,503

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: 0001104659-20-082061 · a4.xml · derivative · entry 3

Hull Martin Daniel · CIK 0001637696 · Corporate Controller and CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 33,333

Underlying: Common Stock · 66,667 shares

Expires 2027-08-31

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

F2 · derivative.exercise_date: 33,334 options vested on August 31, 2018, 33,333 options vested on August 31, 2019 and 33,333 options vest on August 31, 2020.

SEC source: 0001104659-20-082061 · a4.xml · nonDerivative · entry 2

Hull Martin Daniel · CIK 0001637696 · Corporate Controller and CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,836

F1 · kind: Shares sold pursuant to a pre-established 10b5-1 trading plan effective as of March 16, 2020.

SEC source: 0001104659-20-082061 · a4.xml · nonDerivative · entry 1

Hull Martin Daniel · CIK 0001637696 · Corporate Controller and CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 75,503

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

SEC source: 0001104659-20-024084 · a4.xml · derivative · entry 13

Hull Martin Daniel · CIK 0001637696 · Corporate Controller and CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 35,000 shares

Expires 2026-08-09

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.

F3 · derivative.exercise_date: The stock option granted to the reporting person is fully vested and exercisable as of the date hereof.

SEC source: 0001104659-20-024084 · a4.xml · nonDerivative · entry 8

Hull Martin Daniel · CIK 0001637696 · Corporate Controller and CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,836

F1 · shares: Shares sold pursuant to a pre-established 10b5-1 trading plan.

SEC source: 0001104659-20-024084 · a4.xml · nonDerivative · entry 7

Hull Martin Daniel · CIK 0001637696 · Corporate Controller and CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 43,836

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

SEC source: 0001104659-20-024084 · a4.xml · derivative · entry 12

Hull Martin Daniel · CIK 0001637696 · Corporate Controller and CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 35,000

Underlying: Common Stock · 10,000 shares

Expires 2026-08-09

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.

F3 · derivative.exercise_date: The stock option granted to the reporting person is fully vested and exercisable as of the date hereof.