Sayward Shelley E.

SEC source: 0001823513-26-000004 · wk-form4_1773694389.xml · nonDerivative · entry 3

Sayward Shelley E. · CIK 0001823513 · SENIOR VP & GENERAL COUNSEL

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 28,369

F2 · kind: Represents the sale of shares of Class A Common Stock pursuant to a "sell-to-cover" transaction in order to satisfy tax withholding obligations in connection with the vesting of RSUs previously granted to the reporting person. This sale was effected pursuant to an automatic sell-to-cover instruction adopted by the reporting person on August 2, 2023 and does not represent a discretionary sale by the reporting person.

SEC source: 0001823513-26-000004 · wk-form4_1773694389.xml · nonDerivative · entry 2

Sayward Shelley E. · CIK 0001823513 · SENIOR VP & GENERAL COUNSEL

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 28,731

F2 · kind: Represents the sale of shares of Class A Common Stock pursuant to a "sell-to-cover" transaction in order to satisfy tax withholding obligations in connection with the vesting of RSUs previously granted to the reporting person. This sale was effected pursuant to an automatic sell-to-cover instruction adopted by the reporting person on August 2, 2023 and does not represent a discretionary sale by the reporting person.

SEC source: 0001823513-26-000004 · wk-form4_1773694389.xml · nonDerivative · entry 1

Sayward Shelley E. · CIK 0001823513 · SENIOR VP & GENERAL COUNSEL

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 28,860

F1 · kind: Represents the award of Restricted Stock Units (RSUs) under the Casella Waste Systems, Inc. Amended and Restated 2016 Incentive Plan. Each RSU represents a contingent right to receive one share of Casella's Class A Common Stock. RSUs vest in three equal annual installments beginning on March 12, 2027.

SEC source: 0001823513-26-000002 · wk-form4_1772487695.xml · nonDerivative · entry 2

Sayward Shelley E. · CIK 0001823513 · SENIOR VP & GENERAL COUNSEL

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 27,206

F2 · kind: Represents the sale of shares of Class A Common Stock pursuant to a "sell-to-cover" transaction in order to satisfy tax withholding obligations in connection with the vesting of PSUs previously granted to the reporting person on March 10, 2023. This sale was effected pursuant to an automatic sell-to-cover instruction adopted by the reporting person on August 2, 2023 and does not represent a discretionary sale by the reporting person.

SEC source: 0001823513-26-000002 · wk-form4_1772487695.xml · nonDerivative · entry 1

Sayward Shelley E. · CIK 0001823513 · SENIOR VP & GENERAL COUNSEL

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 28,797

F1 · shares: Represents shares of Class A Common Stock acquired by the reporting person upon the vesting of performance-based stock units (PSUs) granted to the reporting person on March 10, 2023, as a result of the level of achievement by Casella Waste Systems, Inc. of certain performance objectives during the period running from January 1, 2025 through December 31, 2025, and a multiplier based on relative total shareholder return for the period running from January 1, 2023 to December 31, 2025, as certified by the issuer's compensation and human capital committee on February 26, 2026.

SEC source: 0000911177-25-000064 · wk-form4_1741983141.xml · nonDerivative · entry 4

Sayward Shelley E. · CIK 0001823513 · SENIOR VP & GENERAL COUNSEL

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 24,199

F2 · kind: Represents the sale of shares of Class A Common Stock pursuant to a "sell-to-cover" transaction in order to satisfy tax withholding obligations in connection with the vesting of RSUs previously granted to the reporting person. This sale was effected pursuant to an automatic sell-to-cover instruction adopted by the reporting person on August 2, 2023 and does not represent a discretionary sale by the reporting person.

F4 · price: Represents the weighted average sales price for shares sold in multiple transactions, ranging from $103.94 to $103.99. Upon request of the staff of the Securities and Exchange Commission, the issuer or a security holder of the issuer, the reporting person will provide full information regarding the number of shares sold at each separate price.

SEC source: 0000911177-25-000064 · wk-form4_1741983141.xml · nonDerivative · entry 3

Sayward Shelley E. · CIK 0001823513 · SENIOR VP & GENERAL COUNSEL

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 24,405

F3 · kind: Represents the sale of shares of Class A Common Stock pursuant to a "sell-to-cover" transaction in order to satisfy tax withholding obligations in connection with the vesting of RSUs previously granted to the reporting person. This sale was effected pursuant to an automatic sell-to-cover instruction adopted by the reporting person on May 12, 2022 and does not represent a discretionary sale by the reporting person.

SEC source: 0000911177-25-000064 · wk-form4_1741983141.xml · nonDerivative · entry 2

Sayward Shelley E. · CIK 0001823513 · SENIOR VP & GENERAL COUNSEL

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 24,571

F2 · kind: Represents the sale of shares of Class A Common Stock pursuant to a "sell-to-cover" transaction in order to satisfy tax withholding obligations in connection with the vesting of RSUs previously granted to the reporting person. This sale was effected pursuant to an automatic sell-to-cover instruction adopted by the reporting person on August 2, 2023 and does not represent a discretionary sale by the reporting person.

SEC source: 0000911177-25-000064 · wk-form4_1741983141.xml · nonDerivative · entry 1

Sayward Shelley E. · CIK 0001823513 · SENIOR VP & GENERAL COUNSEL

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 24,786

F1 · kind: Represents the award of Restricted Stock Units (RSUs) under the Casella Waste Systems, Inc. Amended and Restated 2016 Incentive Plan. Each RSU represents a contingent right to receive one share of Casella's Class A Common Stock. RSUs vest in three equal annual installments beginning on March 12, 2026.

SEC source: 0000911177-25-000037 · wk-form4_1741037154.xml · nonDerivative · entry 2

Sayward Shelley E. · CIK 0001823513 · SENIOR VP & GENERAL COUNSEL

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,716

F2 · kind: Represents the sale of shares of Class A Common Stock pursuant to a "sell-to-cover" transaction in order to satisfy tax withholding obligations in connection with the vesting of PSUs previously granted to the reporting person on March 11, 2022. This sale was effected pursuant to an automatic sell-to-cover instruction adopted by the reporting person on May 12, 2022 and does not represent a discretionary sale by the reporting person.

SEC source: 0000911177-25-000037 · wk-form4_1741037154.xml · nonDerivative · entry 1

Sayward Shelley E. · CIK 0001823513 · SENIOR VP & GENERAL COUNSEL

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 25,654

F1 · shares: Represents shares of Class A Common Stock acquired by the reporting person upon the vesting of performance-based stock units (PSUs) granted to the reporting person on March 11, 2022, as a result of the level of achievement by the issuer of certain performance objectives during the period running from January 1, 2024 through December 31, 2024, and a multiplier based on relative total shareholder return for the period running from January 1, 2022 to December 31, 2024, as certified by the issuer's compensation and human capital committee on February 27, 2025.

SEC source: 0000911177-24-000044 · wk-form4_1710447449.xml · nonDerivative · entry 3

Sayward Shelley E. · CIK 0001823513 · SENIOR VP & GENERAL COUNSEL

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 19,287

F4 · kind: Represents the sale of shares of Class A Common Stock pursuant to a "sell-to-cover" transaction in order to satisfy tax withholding obligations in connection with the vesting of RSUs previously granted to the reporting person. This sale was effected pursuant to an automatic sell-to-cover instruction adopted by the reporting person on August 4, 2021 and does not represent a discretionary sale by the reporting person.

F5 · price: Represents the weighted average sales price for shares sold in multiple transactions, ranging from $93.81 to $93.92. Upon request of the staff of the Securities and Exchange Commission, the issuer or a security holder of the issuer, the reporting person will provide full information regarding the number of shares sold at each separate price.

SEC source: 0000911177-24-000044 · wk-form4_1710447449.xml · nonDerivative · entry 2

Sayward Shelley E. · CIK 0001823513 · SENIOR VP & GENERAL COUNSEL

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 19,411

F2 · kind: Represents the sale of shares of Class A Common Stock pursuant to a "sell-to-cover" transaction in order to satisfy tax withholding obligations in connection with the vesting of RSUs previously granted to the reporting person. This sale was effected pursuant to an automatic sell-to-cover instruction adopted by the reporting person on May 12, 2022 and August 2, 2023 and does not represent a discretionary sale by the reporting person.

F3 · price: Represents the weighted average sales price for shares sold in multiple transactions, ranging from $94.26 to $94.33. Upon request of the staff of the Securities and Exchange Commission, the issuer or a security holder of the issuer, the reporting person will provide full information regarding the number of shares sold at each separate price.

SEC source: 0000911177-24-000044 · wk-form4_1710447449.xml · nonDerivative · entry 1

Sayward Shelley E. · CIK 0001823513 · SENIOR VP & GENERAL COUNSEL

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 19,782

F1 · kind: Represents the award of Restricted Stock Units (RSUs) under the Casella Waste Systems, Inc. 2016 Incentive Plan. Each RSU represents a contingent right to receive one share of Casella's Class A Common Stock. RSUs vest in three equal annual installments beginning on March 12, 2025.

SEC source: 0000911177-24-000021 · wk-form4_1709242410.xml · nonDerivative · entry 2

Sayward Shelley E. · CIK 0001823513 · SENIOR VP & GENERAL COUNSEL

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 18,584

F2 · kind: Represents the sale of shares of Class A Common Stock pursuant to a "sell-to-cover" transaction in order to satisfy tax withholding obligations in connection with the vesting of PSUs previously granted to the reporting person on March 12, 2021. This sale was effected pursuant to an automatic sell-to-cover instruction adopted by the reporting person on August 4, 2021 and does not represent a discretionary sale by the reporting person.

F3 · price: Represents the weighted average sales price for shares sold in multiple transactions, ranging from $89.53 to $90.40. Upon request of the staff of the Securities and Exchange Commission, the issuer or a security holder of the issuer, the reporting person will provide full information regarding the number of shares sold at each separate price.

SEC source: 0000911177-24-000021 · wk-form4_1709242410.xml · nonDerivative · entry 1

Sayward Shelley E. · CIK 0001823513 · SENIOR VP & GENERAL COUNSEL

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,246

F1 · shares: Represents shares of Class A Common Stock acquired by the reporting person upon the vesting of performance-based stock units (PSUs) granted to the reporting person on March 12, 2021, as a result of the level of achievement by the issuer of certain performance objectives during the period running from January 1, 2023 through December 31, 2023, and a multiplier based on relative total shareholder return for the period running from January 1, 2021 to December 31, 2023, as certified by the issuer's compensation and human capital committee on February 27, 2024.

SEC source: 0000911177-23-000044 · wf-form4_167899825850646.xml · nonDerivative · entry 1

Sayward Shelley E. · CIK 0001823513 · SENIOR VP & GENERAL COUNSEL

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,146

F1 · kind: Represents shares of Class A Common Stock automatically sold by the reporting person to satisfy tax withholding obligations in connection with the vesting of RSUs granted to the reporting person on March 12, 2020, March 12, 2021, and March 11, 2022. The automatic sale of the reporting person's shares of Class A Common Stock is provided for in a Restricted Stock Unit agreement constituting a "sell-to-cover transaction" intended to satisfy the affirmative defense conditions of Rule 10b5-1(c) under the Securities Exchange Act of 1934 and the sale does not represent a discretionary trade by the reporting person.

F2 · price: Represents the weighted average sales price for shares sold in multiple transactions, ranging from $82.10 to $82.48. Upon request of the staff of the Securities and Exchange Commission, the issuer or a security holder of the issuer, the reporting person will provide full information regarding the number of shares sold at each separate price.

SEC source: 0000911177-23-000032 · wf-form4_167883057262847.xml · nonDerivative · entry 1

Sayward Shelley E. · CIK 0001823513 · SENIOR VP & GENERAL COUNSEL

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,389

F1 · kind: Represents the award of Restricted Stock Units (RSUs) under the Casella Waste Systems, Inc. 2016 Incentive Plan. Each RSU represents a contingent right to receive one share of Casella's Class A Common Stock. RSUs vest in three equal annual installments beginning on March 10, 2024.

SEC source: 0000911177-23-000019 · wf-form4_167727293516861.xml · nonDerivative · entry 3

Sayward Shelley E. · CIK 0001823513 · SENIOR VP & GENERAL COUNSEL

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,146

F2 · kind: Represents shares of Class A Common Stock automatically sold by the reporting person to satisfy tax withholding obligations in connection with the vesting of PSUs granted to the reporting person on March 12, 2020. The automatic sale of the reporting person's shares of Class A Common Stock is provided for in a performance-based stock unit agreement constituting a "sell-to-cover transaction" intended to satisfy the affirmative defense conditions of Rule 10b5-1(c) under the Securities Exchange Act of 1934 and the sale does not represent a discretionary trade by the reporting person.

F4 · price: Represents the weighted average sales price for shares sold in multiple transactions, ranging from $75.89 to $76.86. Upon request of the staff of the Securities and Exchange Commission, the issuer or a security holder of the issuer, the reporting person will provide full information regarding the number of shares sold at each separate price.

SEC source: 0000911177-23-000019 · wf-form4_167727293516861.xml · nonDerivative · entry 2

Sayward Shelley E. · CIK 0001823513 · SENIOR VP & GENERAL COUNSEL

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,299

F2 · kind: Represents shares of Class A Common Stock automatically sold by the reporting person to satisfy tax withholding obligations in connection with the vesting of PSUs granted to the reporting person on March 12, 2020. The automatic sale of the reporting person's shares of Class A Common Stock is provided for in a performance-based stock unit agreement constituting a "sell-to-cover transaction" intended to satisfy the affirmative defense conditions of Rule 10b5-1(c) under the Securities Exchange Act of 1934 and the sale does not represent a discretionary trade by the reporting person.

F3 · price: Represents the weighted average sales price for shares sold in multiple transactions, ranging from $74.89 to $75.88. Upon request of the staff of the Securities and Exchange Commission, the issuer or a security holder of the issuer, the reporting person will provide full information regarding the number of shares sold at each separate price.

SEC source: 0000911177-23-000019 · wf-form4_167727293516861.xml · nonDerivative · entry 1

Sayward Shelley E. · CIK 0001823513 · SENIOR VP & GENERAL COUNSEL

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,640

F1 · shares: Represents shares of Class A Common Stock acquired by the reporting person upon the vesting of performance-based stock units (PSUs) granted to the reporting person on March 12, 2020, as a result of the level of achievement by Casella Waste Systems, Inc. of certain performance objectives during the period running from January 1, 2022 through December 31, 2022, and a multiplier based on relative total shareholder return for the period running from January 1, 2020 to December 31, 2022.

SEC source: 0001415889-22-003053 · form4-03162022_040307.xml · nonDerivative · entry 2

Sayward Shelley E. · CIK 0001823513 · SENIOR VP & GENERAL COUNSEL

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,073

F1 · kind: Represents shares of Class A Common Stock automatically sold by the reporting person to satisfy tax withholding obligations in connection with the vesting of RSUs granted to the reporting person on March 12, 2019, March 12, 2020, and March 12, 2021. The automatic sale of the reporting person's shares of Class A Common Stock is provided for in a Restricted Stock Unit agreement constituting a "binding contract" consistent with the affirmative defense to liability under Rule 10b5-1 and the sale does not represent a discretionary trade by the reporting person.

F3 · price: Represents the weighted average sales price for shares sold in multiple transactions, ranging from $87.83 to $88.20. Upon request of the staff of the Securities and Exchange Commission, the issuer or a security holder of the issuer, the reporting person will provide full information regarding the number of shares sold at each separate price.

SEC source: 0001415889-22-003053 · form4-03162022_040307.xml · nonDerivative · entry 1

Sayward Shelley E. · CIK 0001823513 · SENIOR VP & GENERAL COUNSEL

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,093

F1 · kind: Represents shares of Class A Common Stock automatically sold by the reporting person to satisfy tax withholding obligations in connection with the vesting of RSUs granted to the reporting person on March 12, 2019, March 12, 2020, and March 12, 2021. The automatic sale of the reporting person's shares of Class A Common Stock is provided for in a Restricted Stock Unit agreement constituting a "binding contract" consistent with the affirmative defense to liability under Rule 10b5-1 and the sale does not represent a discretionary trade by the reporting person.

F2 · price: Represents the weighted average sales price for shares sold in multiple transactions, ranging from $86.83 to $87.80. Upon request of the staff of the Securities and Exchange Commission, the issuer or a security holder of the issuer, the reporting person will provide full information regarding the number of shares sold at each separate price.

SEC source: 0001415889-22-002976 · form4-03152022_030349.xml · nonDerivative · entry 1

Sayward Shelley E. · CIK 0001823513 · SENIOR VP & GENERAL COUNSEL

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,264

F1 · kind: Represents the award of Restricted Stock Units (RSUs) under the Casella Waste Systems, Inc. 2016 Incentive Plan. Each RSU represents a contingent right to receive one share of Casella's Class A Common Stock. RSUs vest in three equal installments beginning on March 11, 2023.

SEC source: 0001179110-22-001643 · edgar.xml · nonDerivative · entry 3

Sayward Shelley E. · CIK 0001823513 · Senior VP & General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,299

F2 · kind: Represents shares of Class A Common Stock automatically sold by the reporting person to satisfy tax withholding obligations in connection with the vesting of PSUs granted to the reporting person on April 1, 2019. The automatic sale of the reporting person's shares of Class A Common Stock is provided for in a performance-based stock unit agreement constituting a "binding contract" consistent with the affirmative defense to liability under Rule 10b5-1 and the sale does not represent a discretionary trade by the reporting person.

F4 · price: Represents the weighted average sales price for shares sold in multiple transactions, at prices ranging from $71.00 to $71.39, inclusive. Upon request of the staff of the Securities and Exchange Commission, the issuer or a security holder of the issuer, the reporting person will provide full information regarding the number of shares sold at each separate price.

SEC source: 0001179110-22-001643 · edgar.xml · nonDerivative · entry 2

Sayward Shelley E. · CIK 0001823513 · Senior VP & General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,310

F2 · kind: Represents shares of Class A Common Stock automatically sold by the reporting person to satisfy tax withholding obligations in connection with the vesting of PSUs granted to the reporting person on April 1, 2019. The automatic sale of the reporting person's shares of Class A Common Stock is provided for in a performance-based stock unit agreement constituting a "binding contract" consistent with the affirmative defense to liability under Rule 10b5-1 and the sale does not represent a discretionary trade by the reporting person.

F3 · price: Represents the weighted average sales price for shares sold in multiple transactions, at prices ranging from $70.00 to $70.99, inclusive. Upon request of the staff of the Securities and Exchange Commission, the issuer or a security holder of the issuer, the reporting person will provide full information regarding the number of shares sold at each separate price.

SEC source: 0001179110-22-001643 · edgar.xml · nonDerivative · entry 1

Sayward Shelley E. · CIK 0001823513 · Senior VP & General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,521

F1 · shares: Represents shares of Class A Common Stock acquired by the reporting person upon the vesting of performance-based stock units (PSUs) granted to the reporting person on April 1, 2019, as a result of the level of achievement by Casella Waste Systems, Inc. of certain performance objectives during the period running from January 1, 2021 through December 31, 2021, and a multiplier based on relative total shareholder return for the period running from January 1, 2019 to December 31, 2021.

SEC source: 0001179110-21-007801 · edgar.xml · derivative · entry 1

Sayward Shelley E. · CIK 0001823513 · Senior VP & General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,396

Underlying: Class A Common Stock · 8,396 shares

Expires 2031-07-29

F1 · derivative.exercise_date: This option shall become exercisable with respect to one-third of the shares on July 30, 2022, and shall become exercisable as to an additional one-third of shares on each of the second and third anniversaries of the grant date.

SEC source: 0001179110-21-003466 · edgar.xml · nonDerivative · entry 2

Sayward Shelley E. · CIK 0001823513 · Senior VP & General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,817

F2 · kind: Represents the automatic sale of shares of stock for tax withholding purposes pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 20, 2020, in connection with the vesting of RSUs on March 12, 2021.

F3 · price: Represents the weighted average sales price for shares sold in multiple transactions, ranging from $64.25 to $65.06. Upon request of the staff of the Securities and Exchange Commission, the issuer or a security holder of the issuer, the reporting person will provide full information regarding the number of shares sold at each separate price.

SEC source: 0001179110-21-003466 · edgar.xml · nonDerivative · entry 1

Sayward Shelley E. · CIK 0001823513 · Senior VP & General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,987

F1 · kind: Represents the award of Restricted Stock Units (RSUs) under the Casella Waste Systems, Inc. 2016 Incentive Plan. Each RSU represents a contingent right to receive one share of Casella's Class A Common Stock. RSUs vest in three equal installments beginning on March 12, 2022.

SEC source: 0001179110-21-002360 · edgar.xml · nonDerivative · entry 2

Sayward Shelley E. · CIK 0001823513 · Senior VP & General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,214

F2 · kind: Represents the automatic sale of stock for tax withholding purposes pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 23, 2019, in connection with the vesting of PSUs on February 24, 2021.

F3 · price: Represents the weighted average sales price for shares sold in multiple transactions, at prices ranging from $60.40 to $60.80, inclusive. Upon request of the staff of the Securities and Exchange Commission, the issuer or a security holder of the issuer, the reporting person will provide full information regarding the number of shares sold at each separate price.

SEC source: 0001179110-21-002360 · edgar.xml · nonDerivative · entry 1

Sayward Shelley E. · CIK 0001823513 · Senior VP & General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,535

F1 · shares: Represents shares of Class A Common Stock acquired by the reporting person upon the vesting of performance-based stock units (PSUs) granted to the reporting person on March 12, 2018, as a result of the level of achievement by Casella Waste Systems, Inc. of certain performance objectives during the period running from January 1, 2020 through December 31, 2020, and a multiplier based on relative total shareholder return for the period running from January 1, 2018 to December 31, 2020.