WCN

SEC source: 0001562180-22-008278 · primarydocument.xml · nonDerivative · entry 2

Bertone Andrea E. · CIK 0001766686 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 185

F1 · kind: Represents shares withheld by the Issuer in satisfaction of the applicable withholding taxes due in connection with the vesting of restricted share units and delivery of the converted common shares.

F2 · price: For purposes of this disclosure, Canadian dollar amounts have been converted to U.S. dollars. CAN $191.94 = US $140.45

SEC source: 0001562180-22-008278 · primarydocument.xml · nonDerivative · entry 1

Bertone Andrea E. · CIK 0001766686 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 400

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: 0001562180-23-000392 · primarydocument.xml · nonDerivative · entry 12

Cloninger Robert Michael · CIK 0001616193 · SR VP, Deputy General Counsel

10b5-1 filing: Not disclosed

Ownership: Indirect · by son

Disclosed balance after: 1,681.8148

SEC source: 0001562180-23-000392 · primarydocument.xml · nonDerivative · entry 11

Cloninger Robert Michael · CIK 0001616193 · SR VP, Deputy General Counsel

10b5-1 filing: Not disclosed

Ownership: Indirect · by son

Disclosed balance after: 1,682.1389

SEC source: 0001562180-23-000392 · primarydocument.xml · nonDerivative · entry 10

Cloninger Robert Michael · CIK 0001616193 · SR VP, Deputy General Counsel

10b5-1 filing: Not disclosed

Ownership: Indirect · by daughter

Disclosed balance after: 1,681.8777

SEC source: 0001562180-24-001300 · primarydocument.xml · nonDerivative · entry 14

HARLAN MICHAEL W · CIK 0001064313 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,161.936

F2 · balance_after: Amount of securities beneficially owned at December 31, 2019, 2020, 2021 and 2022: 8,966.264, 9,033.313, 9,074.517, 9,115.673, respectively.

SEC source: 0001562180-23-000390 · primarydocument.xml · nonDerivative · entry 1

Shea Patrick James · CIK 0001428227 · Exec VP, General Counsel & Sec

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,413

SEC source: 0001562180-23-000391 · primarydocument.xml · nonDerivative · entry 1

CHAMBLISS DARRELL W · CIK 0001064311 · EVP & COO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 96,811

SEC source: 0001562180-22-007585 · primarydocument.xml · nonDerivative · entry 1

HANSEN ERIC · CIK 0001132334 · Senior Vice President and CIO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,460

SEC source: 0001562180-22-006612 · primarydocument.xml · nonDerivative · entry 3

Shea Patrick James · CIK 0001428227 · Exec VP, General Counsel & Sec

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,813

SEC source: 0001562180-23-000834 · primarydocument.xml · nonDerivative · entry 2

HANSEN ERIC · CIK 0001132334 · Senior Vice President and CIO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,466

SEC source: 0001562180-23-000392 · primarydocument.xml · nonDerivative · entry 9

Cloninger Robert Michael · CIK 0001616193 · SR VP, Deputy General Counsel

10b5-1 filing: Not disclosed

Ownership: Indirect · by son

Disclosed balance after: 1,679.2686

SEC source: 0001562180-23-000392 · primarydocument.xml · nonDerivative · entry 8

Cloninger Robert Michael · CIK 0001616193 · SR VP, Deputy General Counsel

10b5-1 filing: Not disclosed

Ownership: Indirect · by son

Disclosed balance after: 1,679.5923

SEC source: 0001562180-23-000392 · primarydocument.xml · nonDerivative · entry 7

Cloninger Robert Michael · CIK 0001616193 · SR VP, Deputy General Counsel

10b5-1 filing: Not disclosed

Ownership: Indirect · by daughter

Disclosed balance after: 1,679.3314

SEC source: 0001562180-24-001300 · primarydocument.xml · nonDerivative · entry 13

HARLAN MICHAEL W · CIK 0001064313 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,161.936

SEC source: 0001562180-22-006024 · primarydocument.xml · nonDerivative · entry 4

RAZZOUK WILLIAM J · CIK 0001064306 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Children's Trust

Disclosed balance after: 5,583.811

F2 · balance_after: The son's trust of which the reporting person is trustee sold 1,000 common shares. The reporting person and members of his immediate family are the sole beneficiaries of the trust. The son's trust purchased 83.811 common shares in March 2022, resulting in a matching transaction for Section 16(b) reporting purposes. As a result, the reporting person is reimbursing Waste Connections, Inc. $753.74 which is the total amount of short swing profits from the matched transactions pursuant to Section 16(b).

SEC source: 0001562180-22-006024 · primarydocument.xml · nonDerivative · entry 3

RAZZOUK WILLIAM J · CIK 0001064306 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Children's Trust

Disclosed balance after: 6,583.811

F1 · balance_after: The daughter's trust of which the reporting person is trustee sold 1,000 common shares. The reporting person and members of his immediate family are the sole beneficiaries of the trust.

SEC source: 0001562180-22-006024 · primarydocument.xml · nonDerivative · entry 2

RAZZOUK WILLIAM J · CIK 0001064306 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,016

SEC source: 0001562180-22-006024 · primarydocument.xml · nonDerivative · entry 1

RAZZOUK WILLIAM J · CIK 0001064306 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,016

SEC source: 0001562180-22-005980 · primarydocument.xml · nonDerivative · entry 1

Black Matthew Stephen · CIK 0001544201 · Sr. Vice President - Tax

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 26,333

F1 · price: This transaction was executed in multiple trades at prices ranging from $137.84 USD to $138.52 USD; the price reported above reflects the weighted average sale price.

SEC source: 0001562180-22-005512 · primarydocument.xml · nonDerivative · entry 1

HANSEN ERIC · CIK 0001132334 · Senior Vice President and CIO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,460

F1 · kind: These shares were acquired under the Waste Connections, Inc. 2020 Employee Share Purchase Plan ("ESPP"), for the offering period of January 1, 2022 to June 30, 2022. In accordance with the ESPP, these shares were acquired at a price equal to 95% of the closing price of the shares on the New York Stock Exchange on June 30, 2022.

SEC source: 0001562180-22-005511 · primarydocument.xml · nonDerivative · entry 1

CRAFT JASON · CIK 0001815420 · Sr Vice President-Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 20,317

F1 · kind: These shares were acquired under the Waste Connections, Inc. 2020 Employee Share Purchase Plan ("ESPP"), for the offering period of January 1, 2022 to June 30, 2022. In accordance with the ESPP, these shares were acquired at a price equal to 95% of the closing price of the shares on the New York Stock Exchange on June 30, 2022.

SEC source: 0001562180-22-005510 · primarydocument.xml · nonDerivative · entry 2

Black Matthew Stephen · CIK 0001544201 · Sr. Vice President - Tax

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 34,833

F1 · kind: These shares were acquired under the Waste Connections, Inc. 2020 Employee Share Purchase Plan ("ESPP"), for the offering period of January 1, 2022 to June 30, 2022. In accordance with the ESPP, these shares were acquired at a price equal to 95% of the closing price of the shares on the New York Stock Exchange on June 30, 2022.

SEC source: 0001562180-23-000392 · primarydocument.xml · nonDerivative · entry 6

Cloninger Robert Michael · CIK 0001616193 · SR VP, Deputy General Counsel

10b5-1 filing: Not disclosed

Ownership: Indirect · by son

Disclosed balance after: 1,676.9354

SEC source: 0001562180-23-000392 · primarydocument.xml · nonDerivative · entry 5

Cloninger Robert Michael · CIK 0001616193 · SR VP, Deputy General Counsel

10b5-1 filing: Not disclosed

Ownership: Indirect · by son

Disclosed balance after: 1,677.2586

SEC source: 0001562180-23-000392 · primarydocument.xml · nonDerivative · entry 4

Cloninger Robert Michael · CIK 0001616193 · SR VP, Deputy General Counsel

10b5-1 filing: Not disclosed

Ownership: Indirect · by daughter

Disclosed balance after: 1,676.9981

SEC source: 0001562180-24-001300 · primarydocument.xml · nonDerivative · entry 12

HARLAN MICHAEL W · CIK 0001064313 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,161.936

SEC source: 0001562180-22-006612 · primarydocument.xml · nonDerivative · entry 2

Shea Patrick James · CIK 0001428227 · Exec VP, General Counsel & Sec

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 19,813

SEC source: 0001562180-22-006612 · primarydocument.xml · nonDerivative · entry 1

Shea Patrick James · CIK 0001428227 · Exec VP, General Counsel & Sec

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 19,913

SEC source: 0001562180-23-000392 · primarydocument.xml · nonDerivative · entry 3

Cloninger Robert Michael · CIK 0001616193 · SR VP, Deputy General Counsel

10b5-1 filing: Not disclosed

Ownership: Indirect · by son

Disclosed balance after: 1,674.3665

SEC source: 0001562180-23-000392 · primarydocument.xml · nonDerivative · entry 2

Cloninger Robert Michael · CIK 0001616193 · SR VP, Deputy General Counsel

10b5-1 filing: Not disclosed

Ownership: Indirect · by son

Disclosed balance after: 1,674.6892

SEC source: 0001562180-23-000392 · primarydocument.xml · nonDerivative · entry 1

Cloninger Robert Michael · CIK 0001616193 · SR VP, Deputy General Counsel

10b5-1 filing: Not disclosed

Ownership: Indirect · by daughter

Disclosed balance after: 1,674.4291

SEC source: 0001562180-24-001300 · primarydocument.xml · nonDerivative · entry 11

HARLAN MICHAEL W · CIK 0001064313 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,161.936

SEC source: 0001562180-22-002540 · primarydocument.xml · nonDerivative · entry 1

RAZZOUK WILLIAM J · CIK 0001064306 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Children's Trust

Disclosed balance after: 7,583.811

F1 · balance_after: The common shares were purchased by the son's trust of which the reporting person is trustee. The reporting person and members of his immediate family are the sole beneficiaries of the trust.

SEC source: 0001562180-22-005510 · primarydocument.xml · nonDerivative · entry 1

Black Matthew Stephen · CIK 0001544201 · Sr. Vice President - Tax

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 34,817

SEC source: 0001562180-22-001776 · primarydocument.xml · derivative · entry 6

LITTLE JAMES · CIK 0001130416 · Executive VP Engineering

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,896

Underlying: Common Shares · 4,896 shares

Expires not disclosed

F2 · derivative.exercise_date: Represents an award of performance-based restricted share units. The target number of units is presented in the table. Subject to certain continued employment conditions and subject to accelerated vesting in certain circumstances, the number of units that actually vest at the end of the three-year performance period will be 0% to 250% of the scheduled amount, depending on the extent to which the Issuer meets or exceeds certain performance goals at the end of each year during the performance period. The maximum number of units that may vest at the end of the three-year performance period is 12,240 (250% of the target number).

F2 · derivative.expiration_date: Represents an award of performance-based restricted share units. The target number of units is presented in the table. Subject to certain continued employment conditions and subject to accelerated vesting in certain circumstances, the number of units that actually vest at the end of the three-year performance period will be 0% to 250% of the scheduled amount, depending on the extent to which the Issuer meets or exceeds certain performance goals at the end of each year during the performance period. The maximum number of units that may vest at the end of the three-year performance period is 12,240 (250% of the target number).

SEC source: 0001562180-22-001773 · primarydocument.xml · derivative · entry 6

HALL DAVID M · CIK 0001089079 · Sr. Vice President - Sales

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Shares · 1,115 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.

F3 · derivative.exercise_date: Represents the conversion upon vesting of restricted share units into common shares of the Issuer. The performance-based restricted share unit award was granted on February 20, 2018 and contained a performance target that was achieved by the Issuer over the one fiscal year period that ended December 31, 2018. As a result, the award shall vest 25% per year over the four-year period following the date of grant. The common shares are reported on Table I.

F3 · derivative.expiration_date: Represents the conversion upon vesting of restricted share units into common shares of the Issuer. The performance-based restricted share unit award was granted on February 20, 2018 and contained a performance target that was achieved by the Issuer over the one fiscal year period that ended December 31, 2018. As a result, the award shall vest 25% per year over the four-year period following the date of grant. The common shares are reported on Table I.

SEC source: 0001562180-22-001773 · primarydocument.xml · nonDerivative · entry 4

HALL DAVID M · CIK 0001089079 · Sr. Vice President - Sales

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,099

F1 · kind: Represents shares withheld by the Issuer in satisfaction of the applicable withholding taxes due in connection with the vesting of restricted share units and delivery of the converted common shares.

SEC source: 0001562180-22-001773 · primarydocument.xml · nonDerivative · entry 3

HALL DAVID M · CIK 0001089079 · Sr. Vice President - Sales

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,516

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: 0001562180-22-001777 · primarydocument.xml · derivative · entry 14

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,243

Underlying: Common Shares · 3,621 shares

Expires not disclosed

F8 · derivative.exercise_date: The deferred restricted share unit award was granted on 2/25/2013 and vested 25% per year over the four-year period following the date of grant

F8 · derivative.expiration_date: The deferred restricted share unit award was granted on 2/25/2013 and vested 25% per year over the four-year period following the date of grant

SEC source: 0001562180-22-001777 · primarydocument.xml · derivative · entry 13

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 31,057

Underlying: Common Shares · 15,528 shares

Expires not disclosed

F7 · derivative.exercise_date: The deferred restricted share unit award was granted on 2/11/2010 and vested 25% per year over the four-year period following the date of grant.

F7 · derivative.expiration_date: The deferred restricted share unit award was granted on 2/11/2010 and vested 25% per year over the four-year period following the date of grant.

SEC source: 0001562180-22-001777 · primarydocument.xml · derivative · entry 12

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Shares · 5,234 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.

F6 · derivative.exercise_date: Represents the conversion upon vesting of restricted share units into common shares of the Issuer. The performance-based restricted share unit award was granted on February 20, 2018 and contained a performance target that was achieved by the Issuer over the one fiscal year period that ended December 31, 2018. As a result, the award shall vest 25% per year over the four-year period following the date of grant. The common shares are reported on Table I.

F6 · derivative.expiration_date: Represents the conversion upon vesting of restricted share units into common shares of the Issuer. The performance-based restricted share unit award was granted on February 20, 2018 and contained a performance target that was achieved by the Issuer over the one fiscal year period that ended December 31, 2018. As a result, the award shall vest 25% per year over the four-year period following the date of grant. The common shares are reported on Table I.

SEC source: 0001562180-22-001777 · primarydocument.xml · nonDerivative · entry 8

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 205,497

F1 · kind: Represents shares withheld by the Issuer in satisfaction of the applicable withholding taxes due in connection with the vesting of restricted share units and delivery of the converted common shares.

SEC source: 0001562180-22-001777 · primarydocument.xml · nonDerivative · entry 7

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 207,208

F2 · kind: Represents the conversion of restricted share units into common shares of the Issuer. These restricted share units were previously vested and deferred under the Issuer's Deferred Compensation Plan. They are scheduled to be distributed pursuant to a multi-year installment method election as a result of the participant's transition from Chief Executive Officer of the Issuer to its Executive Chairman. The distribution represents the third of five distributions elected by the participant.

SEC source: 0001562180-22-001777 · primarydocument.xml · nonDerivative · entry 6

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 203,587

F1 · kind: Represents shares withheld by the Issuer in satisfaction of the applicable withholding taxes due in connection with the vesting of restricted share units and delivery of the converted common shares.

SEC source: 0001562180-22-001777 · primarydocument.xml · nonDerivative · entry 5

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 210,921

F2 · kind: Represents the conversion of restricted share units into common shares of the Issuer. These restricted share units were previously vested and deferred under the Issuer's Deferred Compensation Plan. They are scheduled to be distributed pursuant to a multi-year installment method election as a result of the participant's transition from Chief Executive Officer of the Issuer to its Executive Chairman. The distribution represents the third of five distributions elected by the participant.

SEC source: 0001562180-22-001777 · primarydocument.xml · nonDerivative · entry 4

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 195,393

F1 · kind: Represents shares withheld by the Issuer in satisfaction of the applicable withholding taxes due in connection with the vesting of restricted share units and delivery of the converted common shares.

SEC source: 0001562180-22-001777 · primarydocument.xml · nonDerivative · entry 3

MITTELSTAEDT RONALD J · CIK 0001064299 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 197,989

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: 0001562180-22-001769 · primarydocument.xml · derivative · entry 8

CHAMBLISS DARRELL W · CIK 0001064311 · EVP & COO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Shares · 2,085 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.

F5 · derivative.exercise_date: Represents the conversion upon vesting of restricted share units into common shares of the Issuer. The performance-based restricted share unit award was granted on February 20, 2018 and contained a performance target that was achieved by the Issuer over the one fiscal year period that ended December 31, 2018. As a result, the award shall vest 25% per year over the four-year period following the date of grant. The common shares are reported on Table I.

F5 · derivative.expiration_date: Represents the conversion upon vesting of restricted share units into common shares of the Issuer. The performance-based restricted share unit award was granted on February 20, 2018 and contained a performance target that was achieved by the Issuer over the one fiscal year period that ended December 31, 2018. As a result, the award shall vest 25% per year over the four-year period following the date of grant. The common shares are reported on Table I.

SEC source: 0001562180-22-001769 · primarydocument.xml · nonDerivative · entry 4

CHAMBLISS DARRELL W · CIK 0001064311 · EVP & COO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 99,311

F1 · kind: Represents shares withheld by the Issuer in satisfaction of the applicable withholding taxes due in connection with the vesting of restricted share units and delivery of the converted common shares.