Romaine Mark

SEC source: 0001339396-26-000058 · form4.xml · nonDerivative · entry 1

Romaine Mark · CIK 0001578638 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 139,109

F1 · price: Common Units representing limited partner interests in the Issuer ("Common Units") were sold at a weighted average price. These Common Units were sold in multiple transactions at prices from $44.56 to $45.16, 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 Common Units sold at each separate price within the range set forth in this footnote (1) to this Form 4.

SEC source: 0001339396-26-000056 · form4.xml · nonDerivative · entry 3

Romaine Mark · CIK 0001578638 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 141,174

F3 · price: Common Units representing limited partner interests in the Issuer were sold at a weighted average price. These Common Units were sold in multiple transactions at prices from $47.28 to $47.50, 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 Common Units sold at each separate price within the range set forth in this footnote (3) to this Form 4.

SEC source: 0001339396-26-000056 · form4.xml · nonDerivative · entry 2

Romaine Mark · CIK 0001578638 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 141,609

F2 · price: Common Units representing limited partner interests in the Issuer were sold at a weighted average price. These Common Units were sold in multiple transactions at prices from $48.15 to $48.50, 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 Common Units sold at each separate price within the range set forth in this footnote (2) to this Form 4.

SEC source: 0001339396-26-000056 · form4.xml · nonDerivative · entry 1

Romaine Mark · CIK 0001578638 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 143,629

F1 · price: Common Units representing limited partner interests in the Issuer ("Common Units") were sold at a weighted average price. These Common Units were sold in multiple transactions at prices from $47.75 to $48.50, 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 Common Units sold at each separate price within the range set forth in this footnote (1) to this Form 4.

SEC source: 0001339396-26-000049 · form4.xml · nonDerivative · entry 3

Romaine Mark · CIK 0001578638 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 146,874

F3 · price: Common Units representing limited partner interests in the Issuer ("Common Units") were sold at a weighted average price. These common units were sold in multiple transactions at prices from $47.75 to $47.88, 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 Common Units sold at each separate price within the range set forth in this footnote (3) to this Form 4.

SEC source: 0001339396-26-000049 · form4.xml · nonDerivative · entry 2

Romaine Mark · CIK 0001578638 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 151,609

F2 · price: Common Units representing limited partner interests in the Issuer ("Common Units") were sold at a weighted average price. These common units were sold in multiple transactions at prices from $47.25 to $47.58, 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 Common Units sold at each separate price within the range set forth in this footnote (2) to this Form 4.

SEC source: 0001339396-26-000049 · form4.xml · nonDerivative · entry 1

Romaine Mark · CIK 0001578638 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 159,109

F1 · price: Common Units representing limited partner interests in the Issuer ("Common Units") were sold at a weighted average price. These common units were sold in multiple transactions at prices from $47.00 to $47.03, 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 Common Units sold at each separate price within the range set forth in this footnote (1) to this Form 4.

SEC source: 0001339396-26-000047 · form4.xml · nonDerivative · entry 3

Romaine Mark · CIK 0001578638 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 162,660

SEC source: 0001339396-26-000054 · form4a.xml · nonDerivative · entry 2

Romaine Mark · CIK 0001578638 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 162,485

F1 · balance_after: The Reporting Person is amending its Form 4 filed on March 13, 2026 to correct the number of units and weighted average price reported as sold on March 12, 2026 in column 4 of Table I, and to provide the updated number of common units representing limited partner interest in the Issuer ("Common Units") beneficially owned on both March 12, 2026 and March 13, 2026. There is no change to the number of units or the weighted average price of the units sold on March 13, 2026.

SEC source: 0001339396-26-000047 · form4.xml · nonDerivative · entry 2

Romaine Mark · CIK 0001578638 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 163,560

F2 · price: Common Units representing limited partner interests in the Issuer ("Common Units") were sold at a weighted average price. These common units were sold in multiple transactions at prices from $47.50 to $47.63, 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 Common Units sold at each separate price within the range set forth in this footnote (2) to this Form 4.

SEC source: 0001339396-26-000054 · form4a.xml · nonDerivative · entry 1

Romaine Mark · CIK 0001578638 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 163,385

F1 · security: The Reporting Person is amending its Form 4 filed on March 13, 2026 to correct the number of units and weighted average price reported as sold on March 12, 2026 in column 4 of Table I, and to provide the updated number of common units representing limited partner interest in the Issuer ("Common Units") beneficially owned on both March 12, 2026 and March 13, 2026. There is no change to the number of units or the weighted average price of the units sold on March 13, 2026.

F2 · price: These Common Units were sold in multiple transactions at prices from $47.50 to $48.11, 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 Common Units sold at each separate price within the range set forth in this footnote (2) to this Form 4.

SEC source: 0001339396-26-000047 · form4.xml · nonDerivative · entry 1

Romaine Mark · CIK 0001578638 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 164,708

F1 · price: Common Units representing limited partner interests in the Issuer ("Common Units") were sold at a weighted average price. These common units were sold in multiple transactions at prices from $48.00 to $48.04, 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 Common Units sold at each separate price within the range set forth in this footnote (1) to this Form 4.

SEC source: 0001339396-26-000045 · form4.xml · nonDerivative · entry 2

Romaine Mark · CIK 0001578638 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 166,357

SEC source: 0001339396-26-000045 · form4.xml · nonDerivative · entry 1

Romaine Mark · CIK 0001578638 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 166,609

F1 · price: Common Units representing limited partner interests in the Issuer ("Common Units") were sold at a weighted average price. These common units were sold in multiple transactions at prices from $48.00 to $48.10, 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 Common Units sold at each separate price within the range set forth in this footnote (1) to this Form 4

SEC source: 0001339396-26-000032 · form4.xml · derivative · entry 3

Romaine Mark · CIK 0001578638 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,498

Underlying: Common units representing limited partner interests · 24,498 shares

Expires not disclosed

F1 · security: Each phantom unit representing the right to receive one common unit upon vesting ("Phantom Unit") converts into a common unit representing a limited partner interest in the Issuer ("Common Unit") on a one-for-one basis.

F4 · derivative.exercise_date: Pursuant to a Grant Agreement dated February 26, 2026, the Reporting Person was granted 24,498 Phantom Units. Upon satisfying the vesting conditions set forth in said Grant Agreement, the Phantom Units granted will vest as follows: one-third on January 5, 2027, one-third on January 5, 2028 and one-third on January 5, 2029.

F4 · derivative.expiration_date: Pursuant to a Grant Agreement dated February 26, 2026, the Reporting Person was granted 24,498 Phantom Units. Upon satisfying the vesting conditions set forth in said Grant Agreement, the Phantom Units granted will vest as follows: one-third on January 5, 2027, one-third on January 5, 2028 and one-third on January 5, 2029.

SEC source: 0001339396-26-000032 · form4.xml · nonDerivative · entry 2

Romaine Mark · CIK 0001578638 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 169,109

F3 · shares: Each Common Unit was withheld at the request of the Reporting Person to satisfy the tax withholding obligations of the Reporting Person.

SEC source: 0001339396-26-000032 · form4.xml · nonDerivative · entry 1

Romaine Mark · CIK 0001578638 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 191,935

F1 · security: Each phantom unit representing the right to receive one common unit upon vesting ("Phantom Unit") converts into a common unit representing a limited partner interest in the Issuer ("Common Unit") on a one-for-one basis.

F2 · shares: Represents Common Units representing a limited partner interest in the Issuer that were earned under an award of performance phantom units ("Performance Units"), granted to the Reporting Person on August 22, 2023. Each Performance Unit represents a contingent right to receive one Common Unit, subject to the Issuer's level of achievement with respect to the certain distributable cash flow performance goal for the applicable performance period. Pursuant to the terms of the award agreement, the Reporting Person earned 200% of the target number of Performance Units, all of which settled in Common Units.

SEC source: 0001339396-26-000014 · form4.xml · derivative · entry 9

Romaine Mark · CIK 0001578638 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,887

Underlying: Common units representing limited partner interests · 5,444 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 · security: Each Phantom Unit is the economic equivalent of one Common Unit.

F5 · derivative.exercise_date: Pursuant to a Grant Agreement dated February 26, 2025, the Reporting Person was granted 16,331 Phantom Units. Upon satisfying the vesting conditions set forth in said Grant Agreement, the Phantom Units cumulatively vested or will vest as follows: one-third on January 6, 2026, one-third on January 6, 2027, and one-third on January 6, 2028.

F5 · derivative.expiration_date: Pursuant to a Grant Agreement dated February 26, 2025, the Reporting Person was granted 16,331 Phantom Units. Upon satisfying the vesting conditions set forth in said Grant Agreement, the Phantom Units cumulatively vested or will vest as follows: one-third on January 6, 2026, one-third on January 6, 2027, and one-third on January 6, 2028.

SEC source: 0001339396-26-000014 · form4.xml · nonDerivative · entry 6

Romaine Mark · CIK 0001578638 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 144,725

F3 · shares: Each Common Unit was withheld at the request of the Reporting Person to satisfy the tax withholding obligations of the Reporting Person.

SEC source: 0001339396-26-000014 · form4.xml · nonDerivative · entry 5

Romaine Mark · CIK 0001578638 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 146,455

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 · security: Each phantom unit representing the right to receive one Common Unit upon vesting ("Phantom Unit") converts into a common unit representing a limited partner interest in the Issuer ("Common Unit") on a one-for-one basis.

F5 · shares: Pursuant to a Grant Agreement dated February 26, 2025, the Reporting Person was granted 16,331 Phantom Units. Upon satisfying the vesting conditions set forth in said Grant Agreement, the Phantom Units cumulatively vested or will vest as follows: one-third on January 6, 2026, one-third on January 6, 2027, and one-third on January 6, 2028.

SEC source: 0001339396-26-000014 · form4.xml · derivative · entry 8

Romaine Mark · CIK 0001578638 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,981

Underlying: Common units representing limited partner interests · 6,981 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 · security: Each Phantom Unit is the economic equivalent of one Common Unit.

F4 · derivative.exercise_date: Pursuant to a Grant Agreement dated March 25, 2024, the Reporting Person was granted 20,943 Phantom Units. Upon satisfying the vesting conditions set forth in said Grant Agreement, the Phantom Units cumulatively vested or will vest as follows: one-third on January 6, 2025, one-third on January 5, 2026 and one-third on January 5, 2027.

F4 · derivative.expiration_date: Pursuant to a Grant Agreement dated March 25, 2024, the Reporting Person was granted 20,943 Phantom Units. Upon satisfying the vesting conditions set forth in said Grant Agreement, the Phantom Units cumulatively vested or will vest as follows: one-third on January 6, 2025, one-third on January 5, 2026 and one-third on January 5, 2027.

SEC source: 0001339396-26-000014 · form4.xml · derivative · entry 7

Romaine Mark · CIK 0001578638 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common units representing limited partner interests · 7,869 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 · security: Each Phantom Unit is the economic equivalent of one Common Unit.

F2 · derivative.exercise_date: Pursuant to a Grant Agreement dated March 3, 2023, the Reporting Person was granted 23,605 Phantom Units. Upon satisfying the vesting conditions set forth in said Grant Agreement, the Phantom Units cumulatively vested as follows: one-third on January 5, 2024, one-third on January 5, 2025, and one-third on January 5, 2026.

F2 · derivative.expiration_date: Pursuant to a Grant Agreement dated March 3, 2023, the Reporting Person was granted 23,605 Phantom Units. Upon satisfying the vesting conditions set forth in said Grant Agreement, the Phantom Units cumulatively vested as follows: one-third on January 5, 2024, one-third on January 5, 2025, and one-third on January 5, 2026.

SEC source: 0001339396-26-000014 · form4.xml · nonDerivative · entry 4

Romaine Mark · CIK 0001578638 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 141,011

F3 · shares: Each Common Unit was withheld at the request of the Reporting Person to satisfy the tax withholding obligations of the Reporting Person.

SEC source: 0001339396-26-000014 · form4.xml · nonDerivative · entry 3

Romaine Mark · CIK 0001578638 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 143,059

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 · security: Each phantom unit representing the right to receive one Common Unit upon vesting ("Phantom Unit") converts into a common unit representing a limited partner interest in the Issuer ("Common Unit") on a one-for-one basis.

F4 · shares: Pursuant to a Grant Agreement dated March 25, 2024, the Reporting Person was granted 20,943 Phantom Units. Upon satisfying the vesting conditions set forth in said Grant Agreement, the Phantom Units cumulatively vested or will vest as follows: one-third on January 6, 2025, one-third on January 5, 2026 and one-third on January 5, 2027.

SEC source: 0001339396-26-000014 · form4.xml · nonDerivative · entry 2

Romaine Mark · CIK 0001578638 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 136,078

F3 · shares: Each Common Unit was withheld at the request of the Reporting Person to satisfy the tax withholding obligations of the Reporting Person.

SEC source: 0001339396-26-000014 · form4.xml · nonDerivative · entry 1

Romaine Mark · CIK 0001578638 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 138,400

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.

F1 · security: Each phantom unit representing the right to receive one Common Unit upon vesting ("Phantom Unit") converts into a common unit representing a limited partner interest in the Issuer ("Common Unit") on a one-for-one basis.

F2 · shares: Pursuant to a Grant Agreement dated March 3, 2023, the Reporting Person was granted 23,605 Phantom Units. Upon satisfying the vesting conditions set forth in said Grant Agreement, the Phantom Units cumulatively vested as follows: one-third on January 5, 2024, one-third on January 5, 2025, and one-third on January 5, 2026.

SEC source: 0001339396-25-000005 · form4.xml · nonDerivative · entry 1

Romaine Mark · CIK 0001578638 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 130,531

F1 · kind: Sale pursuant to 10b5-1 Plan dated March 25, 2025.

F2 · price: Common Units representing limited partner interests in the Issuer ("Common Units") were sold at a weighted average price. These common units were sold in multiple transactions at prices from $51.18 to $52.25, 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 Common Units sold at each separate price within the range set forth in this footnote (2) to this Form 4

SEC source: 0001062993-25-014584 · form4.xml · nonDerivative · entry 1

Romaine Mark · CIK 0001578638 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 139,531

F1 · kind: Sale pursuant to 10b5-1 Plan dated March 25, 2025.

F2 · price: Common Units representing limited partner interests in the Issuer ("Common Units") were sold at a weighted average price. These common units were sold in multiple transactions at prices from $50.00 to $51.26, 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 Common Units sold at each separate price within the range set forth in this footnote (2) to this Form 4

SEC source: 0001062993-25-012922 · form4.xml · nonDerivative · entry 2

Romaine Mark · CIK 0001578638 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 148,531

F1 · kind: Sale pursuant to 10b5-1 Plan dated March 25, 2025.

F3 · price: Common Units representing limited partner interests in the Issuer ("Common Units") were sold at a weighted average price. These common units were sold in multiple transactions at prices from $51.16 to $51.98, 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 Common Units sold at each separate price within the range set forth in this footnote (3) to this Form 4

SEC source: 0001062993-25-012922 · form4.xml · nonDerivative · entry 1

Romaine Mark · CIK 0001578638 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 150,412

F1 · kind: Sale pursuant to 10b5-1 Plan dated March 25, 2025.

F2 · price: Common Units representing limited partner interests in the Issuer ("Common Units") were sold at a weighted average price. These common units were sold in multiple transactions at prices from $50.95 to $51.81, 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 Common Units sold at each separate price within the range set forth in this footnote (2) to this Form 4

SEC source: 0001062993-25-012160 · form4.xml · nonDerivative · entry 2

Romaine Mark · CIK 0001578638 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 157,531

F1 · kind: Sale pursuant to 10b5-1 Plan dated March 25, 2025.

F3 · price: Common Units representing limited partner interests in the Issuer ("Common Units") were sold at a weighted average price. These common units were sold in multiple transactions at prices from $51.35 to $51.82, 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 Common Units sold at each separate price within the range set forth in this footnote (3) to this Form 4

SEC source: 0001062993-25-012160 · form4.xml · nonDerivative · entry 1

Romaine Mark · CIK 0001578638 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 159,872

F1 · kind: Sale pursuant to 10b5-1 Plan dated March 25, 2025.

F2 · price: Common Units representing limited partner interests in the Issuer ("Common Units") were sold at a weighted average price. These common units were sold in multiple transactions at prices from $54.00 to $54.83, 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 Common Units sold at each separate price within the range set forth in this footnote (2) to this Form 4

SEC source: 0001062993-25-008621 · form4.xml · derivative · entry 3

Romaine Mark · CIK 0001578638 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common units representing limited partner interests · 33,647 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 · security: Each phantom unit representing the right to receive one Common Unit upon vesting ("Phantom Unit") converts into a common unit representing a limited partner interest in the Issuer ("Common Unit") on a one-for-one basis.

F2 · derivative.exercise_date: Pursuant to a Grant Agreement dated May 3, 2023, the Reporting Person was granted 33,647 Phantom Units. Upon satisfying the vesting conditions set forth in said Grant Agreement, the Phantom Units vested 100% on May 3, 2025.

F2 · derivative.expiration_date: Pursuant to a Grant Agreement dated May 3, 2023, the Reporting Person was granted 33,647 Phantom Units. Upon satisfying the vesting conditions set forth in said Grant Agreement, the Phantom Units vested 100% on May 3, 2025.

SEC source: 0001062993-25-008621 · form4.xml · nonDerivative · entry 2

Romaine Mark · CIK 0001578638 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 166,531

F3 · shares: Each Common Unit was withheld at the request of the Reporting Person to satisfy the tax withholding obligations of the Reporting Person.

SEC source: 0001062993-25-008621 · form4.xml · nonDerivative · entry 1

Romaine Mark · CIK 0001578638 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 182,799

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 · security: Each phantom unit representing the right to receive one Common Unit upon vesting ("Phantom Unit") converts into a common unit representing a limited partner interest in the Issuer ("Common Unit") on a one-for-one basis.

F2 · shares: Pursuant to a Grant Agreement dated May 3, 2023, the Reporting Person was granted 33,647 Phantom Units. Upon satisfying the vesting conditions set forth in said Grant Agreement, the Phantom Units vested 100% on May 3, 2025.

SEC source: 0001062993-25-006298 · form4.xml · nonDerivative · entry 5

Romaine Mark · CIK 0001578638 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 149,152

F5 · price: Common units representing limited partner interests in the Issuer ("Common Units") were sold at a weighted average price. These common units were sold in multiple transactions at prices ranging from $52.34 to $53.53, 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 Common Units sold at each separate price within the range set forth in this footnote (6) to this Form 4.

SEC source: 0001062993-25-006298 · form4.xml · derivative · entry 6

Romaine Mark · CIK 0001578638 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common units representing limited partner interests · 11,161 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.

F2 · security: Each phantom unit representing the right to receive one Common Unit upon vesting ("Phantom Unit") converts into a common unit representing a limited partner interest in the Issuer ("Common Unit") on a one-for-one basis.

F3 · derivative.exercise_date: Pursuant to a Grant Agreement dated March 25, 2024, the Reporting Person was granted 11,161 Phantom Units. Upon satisfying the vesting conditions set forth in said Grant Agreement, the Phantom Units vested 100% on March 24, 2025.

F3 · derivative.expiration_date: Pursuant to a Grant Agreement dated March 25, 2024, the Reporting Person was granted 11,161 Phantom Units. Upon satisfying the vesting conditions set forth in said Grant Agreement, the Phantom Units vested 100% on March 24, 2025.

SEC source: 0001062993-25-006298 · form4.xml · nonDerivative · entry 4

Romaine Mark · CIK 0001578638 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 161,952

F4 · shares: Each Common Unit was withheld at the request of the Reporting Person to satisfy the tax withholding obligations of the Reporting Person.

SEC source: 0001062993-25-006298 · form4.xml · nonDerivative · entry 3

Romaine Mark · CIK 0001578638 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 167,348

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 · security: Each phantom unit representing the right to receive one Common Unit upon vesting ("Phantom Unit") converts into a common unit representing a limited partner interest in the Issuer ("Common Unit") on a one-for-one basis.

F3 · shares: Pursuant to a Grant Agreement dated March 25, 2024, the Reporting Person was granted 11,161 Phantom Units. Upon satisfying the vesting conditions set forth in said Grant Agreement, the Phantom Units vested 100% on March 24, 2025.

SEC source: 0001062993-25-006298 · form4.xml · nonDerivative · entry 2

Romaine Mark · CIK 0001578638 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 156,187

SEC source: 0001062993-25-006298 · form4.xml · nonDerivative · entry 1

Romaine Mark · CIK 0001578638 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 156,198

F1 · price: Common units representing limited partner interests in the Issuer ("Common Units") were sold at a weighted average price. These common units were sold in multiple transactions at prices ranging from $54.00 to $54.09, 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 Common Units sold at each separate price within the range set forth in this footnote (1) to this Form 4.

SEC source: 0001062993-25-003931 · form4.xml · nonDerivative · entry 2

Romaine Mark · CIK 0001578638 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 158,393

F3 · shares: Each Common Unit was withheld at the request of the Reporting Person to satisfy the tax withholding obligations of the Reporting Person.

SEC source: 0001062993-25-003931 · form4.xml · nonDerivative · entry 1

Romaine Mark · CIK 0001578638 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 185,929

F1 · security: Each phantom unit representing the right to receive one Common Unit upon vesting ("Phantom Unit") converts into a common unit representing a limited partner interest in the Issuer ("Common Unit") on a one-for-one basis.

F2 · shares: Represents Common Units representing a limited partner interest in the Issuer that were earned under an award of performance phantom units ("Performance Units"), granted to the Reporting Person on June 8, 2022. Each Performance Unit represents a contingent right to receive one Common Unit, subject to the Issuer's level of achievement with respect to the certain distributable cash flow performance goal for the applicable performance period. Pursuant to the terms of the award agreement, the Reporting Person earned 200% of the target number of Performance Units, all of which settled in Common Units.

SEC source: 0001062993-25-005487 · form4a.xml · derivative · entry 2

Romaine Mark · CIK 0001578638 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 16,331

Underlying: Common Units representing limited partner interests · 16,331 shares

Expires not disclosed

F1 · security: Each phantom unit representing the right to receive one Common Unit upon vesting ("Phantom Unit") converts into a common unit representing a limited partner interest in the Issuer ("Common Unit") on a one-for-one basis.

F2 · security: The Reporting Person is amending his Form 4 filed on February 28, 2025 to include in Table II the phantom units granted pursuant to the Reporting Person's recently signed Grant Agreement.

F3 · derivative.exercise_date: Pursuant to a Grant Agreement dated February 26, 2025, the Reporting Person was granted 16,331 Phantom Units. Upon satisfying the vesting conditions set forth in said Grant Agreement, the Phantom Units granted will vest as follows: One-Third on January 6, 2026, One-Third on January 6, 2027 and One-Third on January 7, 2028.

F3 · derivative.expiration_date: Pursuant to a Grant Agreement dated February 26, 2025, the Reporting Person was granted 16,331 Phantom Units. Upon satisfying the vesting conditions set forth in said Grant Agreement, the Phantom Units granted will vest as follows: One-Third on January 6, 2026, One-Third on January 6, 2027 and One-Third on January 7, 2028.

SEC source: 0001062993-25-000521 · form4.xml · derivative · entry 6

Romaine Mark · CIK 0001578638 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,962

Underlying: Common units representing limited partner interests · 6,981 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 · security: Each Phantom Unit is the economic equivalent of one Common Unit.

F4 · derivative.exercise_date: Pursuant to a Grant Agreement dated March 25, 2024, the Reporting Person was granted 20,943 Phantom Units. Upon satisfying the vesting conditions set forth in said Grant Agreement, the Phantom Units cumulatively vested or will vest as follows: one-third on January 6, 2025, one-third on January 5, 2026 and one-third on January 5, 2027.

F4 · derivative.expiration_date: Pursuant to a Grant Agreement dated March 25, 2024, the Reporting Person was granted 20,943 Phantom Units. Upon satisfying the vesting conditions set forth in said Grant Agreement, the Phantom Units cumulatively vested or will vest as follows: one-third on January 6, 2025, one-third on January 5, 2026 and one-third on January 5, 2027.

SEC source: 0001062993-25-000521 · form4.xml · nonDerivative · entry 4

Romaine Mark · CIK 0001578638 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 130,701

F3 · shares: Each Common Unit was withheld at the request of the Reporting Person to satisfy the tax withholding obligations of the Reporting Person.

SEC source: 0001062993-25-000521 · form4.xml · nonDerivative · entry 3

Romaine Mark · CIK 0001578638 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 132,749

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 · security: Each phantom unit representing the right to receive one Common Unit upon vesting ("Phantom Unit") converts into a common unit representing a limited partner interest in the Issuer ("Common Unit") on a one-for-one basis.

F4 · shares: Pursuant to a Grant Agreement dated March 25, 2024, the Reporting Person was granted 20,943 Phantom Units. Upon satisfying the vesting conditions set forth in said Grant Agreement, the Phantom Units cumulatively vested or will vest as follows: one-third on January 6, 2025, one-third on January 5, 2026 and one-third on January 5, 2027.

SEC source: 0001062993-25-000521 · form4.xml · derivative · entry 5

Romaine Mark · CIK 0001578638 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,869

Underlying: Common units representing limited partner interests · 7,868 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 · security: Each Phantom Unit is the economic equivalent of one Common Unit.

F2 · derivative.exercise_date: Pursuant to a Grant Agreement dated March 3, 2023, the Reporting Person was granted 23,605 Phantom Units. Upon satisfying the vesting conditions set forth in said Grant Agreement, the Phantom Units cumulatively vested or will vest as follows: one-third on January 5, 2024, one-third on January 5, 2025 and one-third on January 5, 2026.

F2 · derivative.expiration_date: Pursuant to a Grant Agreement dated March 3, 2023, the Reporting Person was granted 23,605 Phantom Units. Upon satisfying the vesting conditions set forth in said Grant Agreement, the Phantom Units cumulatively vested or will vest as follows: one-third on January 5, 2024, one-third on January 5, 2025 and one-third on January 5, 2026.

SEC source: 0001062993-25-000521 · form4.xml · nonDerivative · entry 2

Romaine Mark · CIK 0001578638 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 125,768

F3 · shares: Each Common Unit was withheld at the request of the Reporting Person to satisfy the tax withholding obligations of the Reporting Person.

SEC source: 0001062993-25-000521 · form4.xml · nonDerivative · entry 1

Romaine Mark · CIK 0001578638 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 128,077

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 · security: Each phantom unit representing the right to receive one Common Unit upon vesting ("Phantom Unit") converts into a common unit representing a limited partner interest in the Issuer ("Common Unit") on a one-for-one basis.

F2 · shares: Pursuant to a Grant Agreement dated March 3, 2023, the Reporting Person was granted 23,605 Phantom Units. Upon satisfying the vesting conditions set forth in said Grant Agreement, the Phantom Units cumulatively vested or will vest as follows: one-third on January 5, 2024, one-third on January 5, 2025 and one-third on January 5, 2026.