PESI

SEC source: 0001493152-24-012723 · ownership.xml · nonDerivative · entry 1

Duggan Kerry C · CIK 0001861456 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,135

SEC source: 0001493152-24-012722 · ownership.xml · nonDerivative · entry 1

ZWECKER MARK A · CIK 0001256439 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 226,482

SEC source: 0001493152-24-012721 · ownership.xml · nonDerivative · entry 1

Bostick Thomas · CIK 0001724193 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 36,225

SEC source: 0001493152-24-012727 · ownership.xml · nonDerivative · entry 1

Shelton Larry · CIK 0001370728 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 171,283

SEC source: 0001493152-24-012720 · ownership.xml · nonDerivative · entry 1

Wamp Zach Paul · CIK 0001729607 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 43,316

SEC source: 0001493152-24-011518 · ownership.xml · derivative · entry 9

Grondin Richard · CIK 0001819004 · EVP of Waste Treatment Ops

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,000

Underlying: Common Stock · 6,000 shares

Expires 2029-01-19

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.

F3 · shares: On March 26, 2024, the Reporting Person exercised the incentive stock option granted 1/19/2023 under the Company's 2017 Stock Option Plan (the "2017 Plan") for the purchase of 6,000 of the 30,000 shares of the Company's Common Stock at an exercise price of $3.95 per share (the "Option shares"). As permitted by the 2017 Plan, the Reporting Person elected to pay the exercise price of the Option Shares by having the Company withhold from the Option Shares a number of shares having a fair market value equal to the aggregate exercise price of $23,700. Since the fair market value of the Company's Common Stock on March 26, 2024 (as determined in accordance with the 2017 Plan) was $11.57 per share, the Company withheld 2,048 shares of Common Stock ($23,700 divided by $11.57) to pay the aggregate exercise price of the option.

F6 · derivative.exercise_date: Incentive stock option granted 01/19/2023 under the Company's 2017 Stock Option Plan. The option is for a 6 year period and vests over a 5 year period, at 1/5 increment per year.

SEC source: 0001493152-24-011518 · ownership.xml · derivative · entry 8

Grondin Richard · CIK 0001819004 · EVP of Waste Treatment Ops

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,000

Underlying: Common Stock · 10,000 shares

Expires 2027-10-14

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 · shares: On March 26, 2024, the Reporting Person exercised the incentive stock option granted 10/14/2021 under the Company's 2017 Stock Option Plan (the "2017 Plan") for the purchase of 10,000 of the 25,000 shares of the Company's Common Stock at an exercise price of $7.005 per share (the "Option shares"). As permitted by the 2017 Plan, the Reporting Person elected to pay the exercise price of the Option Shares by having the Company withhold from the Option Shares a number of shares having a fair market value equal to the aggregate exercise price of $70,050. Since the fair market value of the Company's Common Stock on March 26, 2024 (as determined in accordance with the 2017 Plan) was $11.57 per share, the Company withheld 6,054 shares of Common Stock ($70,050 divided by $11.57) to pay the aggregate exercise price of the option.

F5 · derivative.exercise_date: Incentive stock option granted 10/14/2021 under the Company's 2017 Stock Option Plan. The option is for a 6 year period and vests over a 5 year period, at 1/5 increment per year.

SEC source: 0001493152-24-011518 · ownership.xml · derivative · entry 7

Grondin Richard · CIK 0001819004 · EVP of Waste Treatment Ops

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 2,000 shares

Expires 2025-01-17

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 · shares: On March 26, 2024, the Reporting Person exercised the incentive stock option granted 1/17/2019 under the Company's 2017 Stock Option Plan (the "2017 Plan") for the purchase of the remaining 2,000 shares of the 10,000 shares of the Company's Common Stock at an exercise price of $3.15 per share (the "Option shares"). As permitted by the 2017 Plan, the Reporting Person elected to pay the exercise price of the Option Shares by having the Company withhold from the Option Shares a number of shares having a fair market value equal to the aggregate exercise price of $6,300. Since the fair market value of the Company's Common Stock on March 26, 2024 (as determined in accordance with the 2017 Plan) was $11.57 per share, the Company withheld 545 shares of Common Stock ($6,300 divided by $11.57) to pay the aggregate exercise price of the option.

F4 · derivative.exercise_date: Incentive Stock Option granted 01/17/2019 under the Company's 2017 Stock Option Plan. The Option is for a 6 year period and vests over a 5 year period, at 1/5 increment per year.

F1 · balance_after: On March 26, 2024, the Reporting Person exercised the incentive stock option granted 1/17/2019 under the Company's 2017 Stock Option Plan (the "2017 Plan") for the purchase of the remaining 2,000 shares of the 10,000 shares of the Company's Common Stock at an exercise price of $3.15 per share (the "Option shares"). As permitted by the 2017 Plan, the Reporting Person elected to pay the exercise price of the Option Shares by having the Company withhold from the Option Shares a number of shares having a fair market value equal to the aggregate exercise price of $6,300. Since the fair market value of the Company's Common Stock on March 26, 2024 (as determined in accordance with the 2017 Plan) was $11.57 per share, the Company withheld 545 shares of Common Stock ($6,300 divided by $11.57) to pay the aggregate exercise price of the option.

SEC source: 0001493152-24-011518 · ownership.xml · nonDerivative · entry 6

Grondin Richard · CIK 0001819004 · EVP of Waste Treatment Ops

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 28,780

F3 · shares: On March 26, 2024, the Reporting Person exercised the incentive stock option granted 1/19/2023 under the Company's 2017 Stock Option Plan (the "2017 Plan") for the purchase of 6,000 of the 30,000 shares of the Company's Common Stock at an exercise price of $3.95 per share (the "Option shares"). As permitted by the 2017 Plan, the Reporting Person elected to pay the exercise price of the Option Shares by having the Company withhold from the Option Shares a number of shares having a fair market value equal to the aggregate exercise price of $23,700. Since the fair market value of the Company's Common Stock on March 26, 2024 (as determined in accordance with the 2017 Plan) was $11.57 per share, the Company withheld 2,048 shares of Common Stock ($23,700 divided by $11.57) to pay the aggregate exercise price of the option.

SEC source: 0001493152-24-011518 · ownership.xml · nonDerivative · entry 5

Grondin Richard · CIK 0001819004 · EVP of Waste Treatment Ops

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 30,828

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 · shares: On March 26, 2024, the Reporting Person exercised the incentive stock option granted 1/19/2023 under the Company's 2017 Stock Option Plan (the "2017 Plan") for the purchase of 6,000 of the 30,000 shares of the Company's Common Stock at an exercise price of $3.95 per share (the "Option shares"). As permitted by the 2017 Plan, the Reporting Person elected to pay the exercise price of the Option Shares by having the Company withhold from the Option Shares a number of shares having a fair market value equal to the aggregate exercise price of $23,700. Since the fair market value of the Company's Common Stock on March 26, 2024 (as determined in accordance with the 2017 Plan) was $11.57 per share, the Company withheld 2,048 shares of Common Stock ($23,700 divided by $11.57) to pay the aggregate exercise price of the option.

SEC source: 0001493152-24-011518 · ownership.xml · nonDerivative · entry 4

Grondin Richard · CIK 0001819004 · EVP of Waste Treatment Ops

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,828

F2 · shares: On March 26, 2024, the Reporting Person exercised the incentive stock option granted 10/14/2021 under the Company's 2017 Stock Option Plan (the "2017 Plan") for the purchase of 10,000 of the 25,000 shares of the Company's Common Stock at an exercise price of $7.005 per share (the "Option shares"). As permitted by the 2017 Plan, the Reporting Person elected to pay the exercise price of the Option Shares by having the Company withhold from the Option Shares a number of shares having a fair market value equal to the aggregate exercise price of $70,050. Since the fair market value of the Company's Common Stock on March 26, 2024 (as determined in accordance with the 2017 Plan) was $11.57 per share, the Company withheld 6,054 shares of Common Stock ($70,050 divided by $11.57) to pay the aggregate exercise price of the option.

SEC source: 0001493152-24-011518 · ownership.xml · nonDerivative · entry 3

Grondin Richard · CIK 0001819004 · EVP of Waste Treatment Ops

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 30,882

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 · shares: On March 26, 2024, the Reporting Person exercised the incentive stock option granted 10/14/2021 under the Company's 2017 Stock Option Plan (the "2017 Plan") for the purchase of 10,000 of the 25,000 shares of the Company's Common Stock at an exercise price of $7.005 per share (the "Option shares"). As permitted by the 2017 Plan, the Reporting Person elected to pay the exercise price of the Option Shares by having the Company withhold from the Option Shares a number of shares having a fair market value equal to the aggregate exercise price of $70,050. Since the fair market value of the Company's Common Stock on March 26, 2024 (as determined in accordance with the 2017 Plan) was $11.57 per share, the Company withheld 6,054 shares of Common Stock ($70,050 divided by $11.57) to pay the aggregate exercise price of the option.

SEC source: 0001493152-24-011518 · ownership.xml · nonDerivative · entry 2

Grondin Richard · CIK 0001819004 · EVP of Waste Treatment Ops

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,882

F1 · shares: On March 26, 2024, the Reporting Person exercised the incentive stock option granted 1/17/2019 under the Company's 2017 Stock Option Plan (the "2017 Plan") for the purchase of the remaining 2,000 shares of the 10,000 shares of the Company's Common Stock at an exercise price of $3.15 per share (the "Option shares"). As permitted by the 2017 Plan, the Reporting Person elected to pay the exercise price of the Option Shares by having the Company withhold from the Option Shares a number of shares having a fair market value equal to the aggregate exercise price of $6,300. Since the fair market value of the Company's Common Stock on March 26, 2024 (as determined in accordance with the 2017 Plan) was $11.57 per share, the Company withheld 545 shares of Common Stock ($6,300 divided by $11.57) to pay the aggregate exercise price of the option.

SEC source: 0001493152-24-011518 · ownership.xml · nonDerivative · entry 1

Grondin Richard · CIK 0001819004 · EVP of Waste Treatment Ops

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 21,427

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 · shares: On March 26, 2024, the Reporting Person exercised the incentive stock option granted 1/17/2019 under the Company's 2017 Stock Option Plan (the "2017 Plan") for the purchase of the remaining 2,000 shares of the 10,000 shares of the Company's Common Stock at an exercise price of $3.15 per share (the "Option shares"). As permitted by the 2017 Plan, the Reporting Person elected to pay the exercise price of the Option Shares by having the Company withhold from the Option Shares a number of shares having a fair market value equal to the aggregate exercise price of $6,300. Since the fair market value of the Company's Common Stock on March 26, 2024 (as determined in accordance with the 2017 Plan) was $11.57 per share, the Company withheld 545 shares of Common Stock ($6,300 divided by $11.57) to pay the aggregate exercise price of the option.

SEC source: 0001493152-24-002147 · ownership.xml · derivative · entry 4

REEDER JOE · CIK 0001256444 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,500

Underlying: Common Stock · 2,500 shares

Expires 2032-07-21

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: Non-Qualified Stock Option granted 7/21/2022 under the Company's 2003 Outside Directors Stock Plan. The option granted provides for the purchase of up to 10,000 shares of the Company's Common Stock. The option vests over a four year period, at 1/4 increment per year.

SEC source: 0001493152-24-002147 · ownership.xml · derivative · entry 3

REEDER JOE · CIK 0001256444 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,000

Underlying: Common Stock · 5,000 shares

Expires 2031-07-20

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_date: Non-Qualified Stock Option granted 7/20/2021 under the Company's 2003 Outside Directors Stock Plan. The option granted provides for the purchase of up to 10,000 shares of the Company's Common Stock. The option vests over a four year period, at 1/4 increment per year.

SEC source: 0001493152-24-002147 · ownership.xml · nonDerivative · entry 2

REEDER JOE · CIK 0001256444 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 234,318

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: 0001493152-24-002147 · ownership.xml · nonDerivative · entry 1

REEDER JOE · CIK 0001256444 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 231,818

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: 0001493152-24-000261 · ownership.xml · nonDerivative · entry 1

Wamp Zach Paul · CIK 0001729607 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 42,296

SEC source: 0001493152-24-000213 · ownership.xml · nonDerivative · entry 1

ZWECKER MARK A · CIK 0001256439 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 225,115

SEC source: 0001493152-24-000204 · ownership.xml · nonDerivative · entry 1

Shelton Larry · CIK 0001370728 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 169,643

SEC source: 0001493152-24-000202 · ownership.xml · nonDerivative · entry 1

Duggan Kerry C · CIK 0001861456 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,187

SEC source: 0001493152-24-000201 · ownership.xml · nonDerivative · entry 1

Bostick Thomas · CIK 0001724193 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 34,823

SEC source: 0001493152-24-000203 · ownership.xml · nonDerivative · entry 1

Grumski Joseph Timothy · CIK 0001802624 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 48,978

SEC source: 0001493152-24-001044 · ownership.xml · nonDerivative · entry 1

REEDER JOE · CIK 0001256444 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 226,818

SEC source: 0001493152-23-044365 · ownership.xml · nonDerivative · entry 1

CENTOFANTI LOUIS F · CIK 0000926738 · Director · EVP of Strategic Initiatives

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 206,209

F1 · price: Bona fide gift - no compensation was given to donor for the gift.

SEC source: 0001493152-23-043787 · ownership.xml · nonDerivative · entry 1

Lombardo Andy · CIK 0001801064 · EVP of Nuclear & Technical Svc

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,448

SEC source: 0001493152-23-043509 · ownership.xml · nonDerivative · entry 4

Duff Mark · CIK 0001678382 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 110,952

SEC source: 0001493152-23-043509 · ownership.xml · nonDerivative · entry 3

Duff Mark · CIK 0001678382 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 110,202

SEC source: 0001493152-23-043509 · ownership.xml · nonDerivative · entry 2

Duff Mark · CIK 0001678382 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 109,452

SEC source: 0001493152-23-043509 · ownership.xml · nonDerivative · entry 1

Duff Mark · CIK 0001678382 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 108,702

SEC source: 0001493152-23-043505 · ownership.xml · nonDerivative · entry 1

Shelton Larry · CIK 0001370728 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 167,162

SEC source: 0001493152-23-035210 · ownership.xml · nonDerivative · entry 1

Grumski Joseph Timothy · CIK 0001802624 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 46,115

SEC source: 0001493152-23-035213 · ownership.xml · nonDerivative · entry 1

ZWECKER MARK A · CIK 0001256439 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 223,048

SEC source: 0001493152-23-035212 · ownership.xml · nonDerivative · entry 1

Shelton Larry · CIK 0001370728 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 165,162

SEC source: 0001493152-23-035209 · ownership.xml · nonDerivative · entry 1

REEDER JOE · CIK 0001256444 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 224,252

SEC source: 0001493152-23-035214 · ownership.xml · nonDerivative · entry 1

Bostick Thomas · CIK 0001724193 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 32,703

SEC source: 0001493152-23-035215 · ownership.xml · nonDerivative · entry 1

Wamp Zach Paul · CIK 0001729607 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 40,863

SEC source: 0001493152-23-035211 · ownership.xml · nonDerivative · entry 1

Duggan Kerry C · CIK 0001861456 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,754

SEC source: 0001493152-23-035606 · ownership.xml · derivative · entry 6

Grondin Richard · CIK 0001819004 · EVP of Waste Treatment Ops

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,000

Underlying: Common Stock · 8,000 shares

Expires 2025-01-17

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 · shares: On October 2, 2023, the Reporting Person exercised the incentive stock option granted 01/17/2019 under the Company's 2017 Stock Option Plan (the "2017 Plan") for the purchase of 8,000 of the 10,000 shares of the Company's Common Stock at an exercise price of $3.15 per share (the "Option shares"). As permitted by the 2017 Plan, the Reporting Person elected to pay the exercise price of the Option Shares by having the Company withhold from the Option Shares a number of shares having a fair market value equal to the aggregate exercise price of $25,200. Since the fair market value of the Company's Common Stock on October 2, 2023 (as determined in accordance with the 2017 Plan) was $10.115 per share, the Company withheld 2,491 shares of Common Stock ($25,200,000 divided by $10.115) to pay the aggregate exercise price of the option.

F4 · derivative.exercise_date: Incentive Stock Option granted 01/17/2019 under the Company's 2017 Stock Option Plan. The Option is for a 6 year period and vests over a 5 year period, at 1/5 increment per year.

F2 · balance_after: On October 2, 2023, the Reporting Person exercised the incentive stock option granted 01/17/2019 under the Company's 2017 Stock Option Plan (the "2017 Plan") for the purchase of 8,000 of the 10,000 shares of the Company's Common Stock at an exercise price of $3.15 per share (the "Option shares"). As permitted by the 2017 Plan, the Reporting Person elected to pay the exercise price of the Option Shares by having the Company withhold from the Option Shares a number of shares having a fair market value equal to the aggregate exercise price of $25,200. Since the fair market value of the Company's Common Stock on October 2, 2023 (as determined in accordance with the 2017 Plan) was $10.115 per share, the Company withheld 2,491 shares of Common Stock ($25,200,000 divided by $10.115) to pay the aggregate exercise price of the option.

SEC source: 0001493152-23-035606 · ownership.xml · derivative · entry 5

Grondin Richard · CIK 0001819004 · EVP of Waste Treatment Ops

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 20,000 shares

Expires 2023-10-19

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.

F1 · shares: On October 2, 2023, the Reporting Person exercised the incentive stock option granted 10/19/2017 under the Company's 2017 Stock Option Plan (the "2017 Plan") for the purchase of 20,000 shares of the Company's Common Stock at an exercise price of $3.60 per share (the "Option shares"). As permitted by the 2017 Plan, the Reporting Person elected to pay the exercise price of the Option Shares by having the Company withhold from the Option Shares a number of shares having a fair market value equal to the aggregate exercise price of $72,000. Since the fair market value of the Company's Common Stock on October 2, 2023 (as determined in accordance with the 2017 Plan) was $10.115 per share, the Company withheld 7,118 shares of Common Stock ($72,000 divided by $10.115) to pay the aggregate exercise price of the option.

F3 · derivative.exercise_date: Incentive stock option granted 10/19/2017 under the Company's 2017 Stock Option Plan. The option is for a 6 year period and vests over a 5 year period, at 1/5 increment per year.

F1 · balance_after: On October 2, 2023, the Reporting Person exercised the incentive stock option granted 10/19/2017 under the Company's 2017 Stock Option Plan (the "2017 Plan") for the purchase of 20,000 shares of the Company's Common Stock at an exercise price of $3.60 per share (the "Option shares"). As permitted by the 2017 Plan, the Reporting Person elected to pay the exercise price of the Option Shares by having the Company withhold from the Option Shares a number of shares having a fair market value equal to the aggregate exercise price of $72,000. Since the fair market value of the Company's Common Stock on October 2, 2023 (as determined in accordance with the 2017 Plan) was $10.115 per share, the Company withheld 7,118 shares of Common Stock ($72,000 divided by $10.115) to pay the aggregate exercise price of the option.

SEC source: 0001493152-23-035606 · ownership.xml · nonDerivative · entry 4

Grondin Richard · CIK 0001819004 · EVP of Waste Treatment Ops

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,427

F2 · shares: On October 2, 2023, the Reporting Person exercised the incentive stock option granted 01/17/2019 under the Company's 2017 Stock Option Plan (the "2017 Plan") for the purchase of 8,000 of the 10,000 shares of the Company's Common Stock at an exercise price of $3.15 per share (the "Option shares"). As permitted by the 2017 Plan, the Reporting Person elected to pay the exercise price of the Option Shares by having the Company withhold from the Option Shares a number of shares having a fair market value equal to the aggregate exercise price of $25,200. Since the fair market value of the Company's Common Stock on October 2, 2023 (as determined in accordance with the 2017 Plan) was $10.115 per share, the Company withheld 2,491 shares of Common Stock ($25,200,000 divided by $10.115) to pay the aggregate exercise price of the option.

SEC source: 0001493152-23-035606 · ownership.xml · nonDerivative · entry 3

Grondin Richard · CIK 0001819004 · EVP of Waste Treatment Ops

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 21,918

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 · shares: On October 2, 2023, the Reporting Person exercised the incentive stock option granted 01/17/2019 under the Company's 2017 Stock Option Plan (the "2017 Plan") for the purchase of 8,000 of the 10,000 shares of the Company's Common Stock at an exercise price of $3.15 per share (the "Option shares"). As permitted by the 2017 Plan, the Reporting Person elected to pay the exercise price of the Option Shares by having the Company withhold from the Option Shares a number of shares having a fair market value equal to the aggregate exercise price of $25,200. Since the fair market value of the Company's Common Stock on October 2, 2023 (as determined in accordance with the 2017 Plan) was $10.115 per share, the Company withheld 2,491 shares of Common Stock ($25,200,000 divided by $10.115) to pay the aggregate exercise price of the option.

SEC source: 0001493152-23-035606 · ownership.xml · nonDerivative · entry 2

Grondin Richard · CIK 0001819004 · EVP of Waste Treatment Ops

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,918

F1 · shares: On October 2, 2023, the Reporting Person exercised the incentive stock option granted 10/19/2017 under the Company's 2017 Stock Option Plan (the "2017 Plan") for the purchase of 20,000 shares of the Company's Common Stock at an exercise price of $3.60 per share (the "Option shares"). As permitted by the 2017 Plan, the Reporting Person elected to pay the exercise price of the Option Shares by having the Company withhold from the Option Shares a number of shares having a fair market value equal to the aggregate exercise price of $72,000. Since the fair market value of the Company's Common Stock on October 2, 2023 (as determined in accordance with the 2017 Plan) was $10.115 per share, the Company withheld 7,118 shares of Common Stock ($72,000 divided by $10.115) to pay the aggregate exercise price of the option.

SEC source: 0001493152-23-035606 · ownership.xml · nonDerivative · entry 1

Grondin Richard · CIK 0001819004 · EVP of Waste Treatment Ops

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 21,036

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 · shares: On October 2, 2023, the Reporting Person exercised the incentive stock option granted 10/19/2017 under the Company's 2017 Stock Option Plan (the "2017 Plan") for the purchase of 20,000 shares of the Company's Common Stock at an exercise price of $3.60 per share (the "Option shares"). As permitted by the 2017 Plan, the Reporting Person elected to pay the exercise price of the Option Shares by having the Company withhold from the Option Shares a number of shares having a fair market value equal to the aggregate exercise price of $72,000. Since the fair market value of the Company's Common Stock on October 2, 2023 (as determined in accordance with the 2017 Plan) was $10.115 per share, the Company withheld 7,118 shares of Common Stock ($72,000 divided by $10.115) to pay the aggregate exercise price of the option.

SEC source: 0001493152-23-032319 · ownership.xml · derivative · entry 2

Shelton Larry · CIK 0001370728 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 2,400 shares

Expires 2023-09-12

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_date: Non-Qualified Stock Option granted 09/12/2013 under the Company's 2003 Outside Directors Stock Plan. The Option vests fully six months from date of grant.

SEC source: 0001493152-23-032319 · ownership.xml · nonDerivative · entry 1

Shelton Larry · CIK 0001370728 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 163,255

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: 0001493152-23-025183 · ownership.xml · derivative · entry 8

Wamp Zach Paul · CIK 0001729607 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,000

Underlying: Common Stock · 10,000 shares

Expires 2033-07-20

F7 · derivative.exercise_date: Non-Qualified Stock Option granted 07/20/2023 under the Company's 2003 Outside Directors Stock Plan. The Option vests over a four year period, at 1/4 increment per year.

SEC source: 0001493152-23-025179 · ownership.xml · derivative · entry 5

Duggan Kerry C · CIK 0001861456 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,000

Underlying: Common Stock · 10,000 shares

Expires 2033-07-20

F4 · derivative.exercise_date: Non-Qualified Stock Option granted 7/20/2023 under the Company's 2003 Outside Directors Stock Plan. The Option vests over a four year period, at 1/4 increment per year.

SEC source: 0001493152-23-025177 · ownership.xml · derivative · entry 4

REEDER JOE · CIK 0001256444 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,000

Underlying: Common Stock · 10,000 shares

Expires 2033-07-20

F3 · derivative.exercise_date: Non-Qualified Stock Option granted 7/20/2023 under the Company's 2003 Outside Directors Stock Plan. The Option vests over a four year period, at 1/4 increment per year.