Chiang Willie CW

SEC source: 0001070423-26-000033 · form4.xml · derivative · entry 3

Chiang Willie CW · CIK 0001421559 · Director · Chairman & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Units · 346,357 shares

Expires 2026-08-14

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.

F1 · security: Phantom Units granted under Long-Term Incentive Plan (includes distribution equivalent rights ("DER") payable in cash).

F2 · derivative.exercise_price: One common unit is deliverable, upon vesting, for each Phantom Unit that vests.

SEC source: 0001070423-26-000033 · form4.xml · nonDerivative · entry 2

Chiang Willie CW · CIK 0001421559 · Director · Chairman & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,396,856

SEC source: 0001070423-26-000033 · form4.xml · nonDerivative · entry 1

Chiang Willie CW · CIK 0001421559 · Director · Chairman & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,533,148

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: 0001070423-26-000033 · form4.xml · derivative · entry 4

Chiang Willie CW · CIK 0001421559 · Director · Chairman & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 373,000

Underlying: Common Units · 373,000 shares

Expires not disclosed

F1 · security: Phantom Units granted under Long-Term Incentive Plan (includes distribution equivalent rights ("DER") payable in cash).

F2 · derivative.exercise_price: One common unit is deliverable, upon vesting, for each Phantom Unit that vests.

F3 · derivative.exercise_date: These phantom units will vest as follows: (a) Tranche 1, consisting of 186,500 phantom units, will vest on the August 2029 distribution date assuming continued service through such date; (b) Tranche 2, consisting of 93,250 phantom units (assuming 100% payout at target), will potentially vest on the August 2029 distribution date at a scaled payout range of between 0% to 200% based on PAA's total shareholder return (TSR) over the three-year period ending June 30, 2029 compared to the TSR of a selected peer group (payout based on numeric rank with 100% earned at median and interpolation between ranks, and with payout being subject to reduction by up to 25 basis points, but not below 100%, if actual TSR is negative); and

F4 · derivative.exercise_date: (c) Tranche 3, consisting of 93,250 phantom units (assuming 100% payout at target), will potentially vest on the Aug. 2029 distribution date at a scaled payout range of between 0% and 200% based on PAA achieving cumul. distributable cash flow (DCF) per common unit equivalent (CUE) of $9.10 over the 3-year period ending 6/30/29 (with payout equaling 100% at cumul. DCF/CUE over such period of $9.10 and being equal to 0% for cumul. DCF/CUE over such period of $8.19 or lower and 200% for cumul. DCF/CUE over such period of $10.01 or higher), with interpolation btw. such points, and with payout being subject to reduction by 25 basis pts. if PAA's leverage ratio (long term debt to adj. EBITDA as calculated pursuant to PAA's sr. unsecured revolving credit facility) as of 6/30/29 is greater than the leverage ratio that equals the upper end of our then applicable non-rating agency target leverage ratio range.

F5 · derivative.exercise_date: DERs associated with Tranche 1 will accrue for the first year and be paid in cash in a lump sum on the August 2029 distribution date; beginning in November 2027, DERs associated with Tranche 1 will be paid quarterly until the phantom units vest or terminate. DERs associated with Tranches 2 and 3 will accrue during the three-year vesting period and be paid in cash in a lump sum on the August 2029 distribution date with respect to each phantom unit that vests, if any, on such date. Any Tranche 2 or Tranche 3 phantom units that are determined to not have vested as of the August 2029 distribution date shall expire as of such date.

F3 · derivative.expiration_date: These phantom units will vest as follows: (a) Tranche 1, consisting of 186,500 phantom units, will vest on the August 2029 distribution date assuming continued service through such date; (b) Tranche 2, consisting of 93,250 phantom units (assuming 100% payout at target), will potentially vest on the August 2029 distribution date at a scaled payout range of between 0% to 200% based on PAA's total shareholder return (TSR) over the three-year period ending June 30, 2029 compared to the TSR of a selected peer group (payout based on numeric rank with 100% earned at median and interpolation between ranks, and with payout being subject to reduction by up to 25 basis points, but not below 100%, if actual TSR is negative); and

F4 · derivative.expiration_date: (c) Tranche 3, consisting of 93,250 phantom units (assuming 100% payout at target), will potentially vest on the Aug. 2029 distribution date at a scaled payout range of between 0% and 200% based on PAA achieving cumul. distributable cash flow (DCF) per common unit equivalent (CUE) of $9.10 over the 3-year period ending 6/30/29 (with payout equaling 100% at cumul. DCF/CUE over such period of $9.10 and being equal to 0% for cumul. DCF/CUE over such period of $8.19 or lower and 200% for cumul. DCF/CUE over such period of $10.01 or higher), with interpolation btw. such points, and with payout being subject to reduction by 25 basis pts. if PAA's leverage ratio (long term debt to adj. EBITDA as calculated pursuant to PAA's sr. unsecured revolving credit facility) as of 6/30/29 is greater than the leverage ratio that equals the upper end of our then applicable non-rating agency target leverage ratio range.

F5 · derivative.expiration_date: DERs associated with Tranche 1 will accrue for the first year and be paid in cash in a lump sum on the August 2029 distribution date; beginning in November 2027, DERs associated with Tranche 1 will be paid quarterly until the phantom units vest or terminate. DERs associated with Tranches 2 and 3 will accrue during the three-year vesting period and be paid in cash in a lump sum on the August 2029 distribution date with respect to each phantom unit that vests, if any, on such date. Any Tranche 2 or Tranche 3 phantom units that are determined to not have vested as of the August 2029 distribution date shall expire as of such date.

SEC source: 0001683168-26-005036 · ownership.xml · nonDerivative · entry 1

Chiang Willie CW · CIK 0001421559 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,660

F1 · shares: Non-employee members of Delta's Board of Directors receive an annual restricted stock award valued at $200,000. The shares reported in this Form 4 represent the annual restricted stock award grant to the Reporting Person, as approved by the Board of Directors on June 18, 2026. The shares were acquired in a transaction exempt under Rule 16b-3(d)(1).

F1 · price: Non-employee members of Delta's Board of Directors receive an annual restricted stock award valued at $200,000. The shares reported in this Form 4 represent the annual restricted stock award grant to the Reporting Person, as approved by the Board of Directors on June 18, 2026. The shares were acquired in a transaction exempt under Rule 16b-3(d)(1).

SEC source: 0001062993-25-014614 · form4.xml · derivative · entry 6

Chiang Willie CW · CIK 0001421559 · Director · Chairman & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 500,000

Underlying: Common Units · 500,000 shares

Expires not disclosed

F6 · security: The expiration date of these outstanding phantom units has been extended from October 2025 to October 2030, resulting in the deemed cancellation of the original phantom units and deemed grant under the Long-Term Incentive Plan of replacement phantom units described in footnote 7 below. The original phantom units were granted in August 2018. The phantom units include associated DERs payable in cash.

F2 · derivative.exercise_price: One common unit is deliverable, upon vesting, for each Phantom Unit that vests.

F7 · derivative.exercise_date: Although the expiration date of the original phantom units has been extended from Oct. 2025 to Oct. 2030, the other vesting terms remain the same. The phantom units will vest (i) 25% on the first distribution date on which PAA has generated DCF per common unit (DCF/CU) of at least $3.00 on a trailing four quarter basis (TFQB), and (ii) 75% on the first distribution date on which PAA has generated DCF/CU of at least $3.50 on a TFQB. DERs associated with these phantom units have vested or will vest as follows: (i) 1/3 vested on the May 2019 distribution date, (ii) 1/3 will vest on the first distribution date on which PAA generates DCF/CU of at least $2.60 on a TFQB, and (iii) 1/3 will vest on the first distribution date on which PAA generates DCF/CU of at least $2.80 on a TFQB. The phantom units and associated DERs also vest upon termination of employment under certain circumstances. Any phantom units and associated DERs that have not vested by 10-1-2030 will expire at that time.

F7 · derivative.expiration_date: Although the expiration date of the original phantom units has been extended from Oct. 2025 to Oct. 2030, the other vesting terms remain the same. The phantom units will vest (i) 25% on the first distribution date on which PAA has generated DCF per common unit (DCF/CU) of at least $3.00 on a trailing four quarter basis (TFQB), and (ii) 75% on the first distribution date on which PAA has generated DCF/CU of at least $3.50 on a TFQB. DERs associated with these phantom units have vested or will vest as follows: (i) 1/3 vested on the May 2019 distribution date, (ii) 1/3 will vest on the first distribution date on which PAA generates DCF/CU of at least $2.60 on a TFQB, and (iii) 1/3 will vest on the first distribution date on which PAA generates DCF/CU of at least $2.80 on a TFQB. The phantom units and associated DERs also vest upon termination of employment under certain circumstances. Any phantom units and associated DERs that have not vested by 10-1-2030 will expire at that time.

SEC source: 0001062993-25-014614 · form4.xml · derivative · entry 5

Chiang Willie CW · CIK 0001421559 · Director · Chairman & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Units · 500,000 shares

Expires not disclosed

F6 · security: The expiration date of these outstanding phantom units has been extended from October 2025 to October 2030, resulting in the deemed cancellation of the original phantom units and deemed grant under the Long-Term Incentive Plan of replacement phantom units described in footnote 7 below. The original phantom units were granted in August 2018. The phantom units include associated DERs payable in cash.

F2 · derivative.exercise_price: One common unit is deliverable, upon vesting, for each Phantom Unit that vests.

F7 · derivative.exercise_date: Although the expiration date of the original phantom units has been extended from Oct. 2025 to Oct. 2030, the other vesting terms remain the same. The phantom units will vest (i) 25% on the first distribution date on which PAA has generated DCF per common unit (DCF/CU) of at least $3.00 on a trailing four quarter basis (TFQB), and (ii) 75% on the first distribution date on which PAA has generated DCF/CU of at least $3.50 on a TFQB. DERs associated with these phantom units have vested or will vest as follows: (i) 1/3 vested on the May 2019 distribution date, (ii) 1/3 will vest on the first distribution date on which PAA generates DCF/CU of at least $2.60 on a TFQB, and (iii) 1/3 will vest on the first distribution date on which PAA generates DCF/CU of at least $2.80 on a TFQB. The phantom units and associated DERs also vest upon termination of employment under certain circumstances. Any phantom units and associated DERs that have not vested by 10-1-2030 will expire at that time.

F7 · derivative.expiration_date: Although the expiration date of the original phantom units has been extended from Oct. 2025 to Oct. 2030, the other vesting terms remain the same. The phantom units will vest (i) 25% on the first distribution date on which PAA has generated DCF per common unit (DCF/CU) of at least $3.00 on a trailing four quarter basis (TFQB), and (ii) 75% on the first distribution date on which PAA has generated DCF/CU of at least $3.50 on a TFQB. DERs associated with these phantom units have vested or will vest as follows: (i) 1/3 vested on the May 2019 distribution date, (ii) 1/3 will vest on the first distribution date on which PAA generates DCF/CU of at least $2.60 on a TFQB, and (iii) 1/3 will vest on the first distribution date on which PAA generates DCF/CU of at least $2.80 on a TFQB. The phantom units and associated DERs also vest upon termination of employment under certain circumstances. Any phantom units and associated DERs that have not vested by 10-1-2030 will expire at that time.

SEC source: 0001062993-25-014614 · form4.xml · derivative · entry 4

Chiang Willie CW · CIK 0001421559 · Director · Chairman & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 417,350

Underlying: Common Units · 417,350 shares

Expires not disclosed

F1 · security: Phantom Units granted under Long-Term Incentive Plan (includes distribution equivalent rights ("DER") payable in cash).

F2 · derivative.exercise_price: One common unit is deliverable, upon vesting, for each Phantom Unit that vests.

F3 · derivative.exercise_date: These phantom units will vest as follows: (a) Tranche 1, consisting of 208,675 phantom units, will vest on the August 2028 distribution date assuming continued service through such date; (b) Tranche 2, consisting of 104,337 phantom units (assuming 100% payout at target), will potentially vest on the August 2028 distribution date at a scaled payout range of between 0% to 200% based on PAA's total shareholder return (TSR) over the three-year period ending June 30, 2028 compared to the TSR of a selected peer group (payout based on numeric rank with 100% earned at median and interpolation between ranks, and with payout being subject to reduction by up to 25 basis points, but not below 100%, if actual TSR is negative); and

F4 · derivative.exercise_date: (c) Tranche 3, consisting of 104,338 phantom units (assuming 100% payout at target), will potentially vest on the Aug. 2028 distribution date at a scaled payout range of between 0% and 200% based on PAA achieving cumul. distributable cash flow (DCF) per common unit equivalent (CUE) of $8.40 over the 3-year period ending 6/30/28 (with payout equaling 100% at cumul. DCF/CUE over such period of $8.40 and being equal to 0% for cumul. DCF/CUE over such period of $7.56 or lower and 200% for cumul. DCF/CUE over such period of $9.24 or higher, with interpolation btw. such points, and with payout being subject to reduction by 25 basis pts. if PAA's leverage ratio (long term debt to adj. EBITDA as calculated pursuant to PAA's sr. unsecured revolving credit facility) as of 6/30/28 is greater than the leverage ratio that equals the upper end of our then applicable non-rating agency target leverage ratio range.

F5 · derivative.exercise_date: DERs associated with Tranche 1 will accrue for the first year and be paid in cash in a lump sum on the August 2026 distribution date; beginning in November 2026, DERs associated with Tranche 1 will be paid quarterly until the phantom units vest or terminate. DERs associated with Tranches 2 and 3 will accrue during the three-year vesting period and be paid in cash in a lump sum on the August 2026 distribution date with respect to each phantom unit that vests, if any, on such date. Any Tranche 2 or Tranche 3 phantom units that are determined to not have vested as of the August 2028 distribution date shall expire as of such date.

F3 · derivative.expiration_date: These phantom units will vest as follows: (a) Tranche 1, consisting of 208,675 phantom units, will vest on the August 2028 distribution date assuming continued service through such date; (b) Tranche 2, consisting of 104,337 phantom units (assuming 100% payout at target), will potentially vest on the August 2028 distribution date at a scaled payout range of between 0% to 200% based on PAA's total shareholder return (TSR) over the three-year period ending June 30, 2028 compared to the TSR of a selected peer group (payout based on numeric rank with 100% earned at median and interpolation between ranks, and with payout being subject to reduction by up to 25 basis points, but not below 100%, if actual TSR is negative); and

F4 · derivative.expiration_date: (c) Tranche 3, consisting of 104,338 phantom units (assuming 100% payout at target), will potentially vest on the Aug. 2028 distribution date at a scaled payout range of between 0% and 200% based on PAA achieving cumul. distributable cash flow (DCF) per common unit equivalent (CUE) of $8.40 over the 3-year period ending 6/30/28 (with payout equaling 100% at cumul. DCF/CUE over such period of $8.40 and being equal to 0% for cumul. DCF/CUE over such period of $7.56 or lower and 200% for cumul. DCF/CUE over such period of $9.24 or higher, with interpolation btw. such points, and with payout being subject to reduction by 25 basis pts. if PAA's leverage ratio (long term debt to adj. EBITDA as calculated pursuant to PAA's sr. unsecured revolving credit facility) as of 6/30/28 is greater than the leverage ratio that equals the upper end of our then applicable non-rating agency target leverage ratio range.

F5 · derivative.expiration_date: DERs associated with Tranche 1 will accrue for the first year and be paid in cash in a lump sum on the August 2026 distribution date; beginning in November 2026, DERs associated with Tranche 1 will be paid quarterly until the phantom units vest or terminate. DERs associated with Tranches 2 and 3 will accrue during the three-year vesting period and be paid in cash in a lump sum on the August 2026 distribution date with respect to each phantom unit that vests, if any, on such date. Any Tranche 2 or Tranche 3 phantom units that are determined to not have vested as of the August 2028 distribution date shall expire as of such date.

SEC source: 0001062993-25-014614 · form4.xml · derivative · entry 3

Chiang Willie CW · CIK 0001421559 · Director · Chairman & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Units · 561,055 shares

Expires 2025-08-14

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.

F1 · security: Phantom Units granted under Long-Term Incentive Plan (includes distribution equivalent rights ("DER") payable in cash).

F2 · derivative.exercise_price: One common unit is deliverable, upon vesting, for each Phantom Unit that vests.

SEC source: 0001062993-25-014614 · form4.xml · nonDerivative · entry 2

Chiang Willie CW · CIK 0001421559 · Director · Chairman & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,186,791

SEC source: 0001062993-25-014614 · form4.xml · nonDerivative · entry 1

Chiang Willie CW · CIK 0001421559 · Director · Chairman & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,407,567

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: 0001683168-25-004706 · ownership.xml · nonDerivative · entry 1

Chiang Willie CW · CIK 0001421559 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,280

F1 · shares: Non-employee members of Delta's Board of Directors receive an annual restricted stock award valued at $200,000. The shares reported in this Form 4 represent the annual restricted stock award grant to the Reporting Person, as approved by the Board of Directors on June 19, 2025. Because June 19, 2025 was a federal holiday, the grant date for the restricted stock award is deemed to be the next trading day (Friday, June 20, 2025) in accordance with Delta's Equity Award Grant Policy. The shares were acquired in a transaction exempt under Rule 16b-3(d)(1).

F1 · price: Non-employee members of Delta's Board of Directors receive an annual restricted stock award valued at $200,000. The shares reported in this Form 4 represent the annual restricted stock award grant to the Reporting Person, as approved by the Board of Directors on June 19, 2025. Because June 19, 2025 was a federal holiday, the grant date for the restricted stock award is deemed to be the next trading day (Friday, June 20, 2025) in accordance with Delta's Equity Award Grant Policy. The shares were acquired in a transaction exempt under Rule 16b-3(d)(1).

SEC source: 0001062993-24-015244 · form4.xml · derivative · entry 4

Chiang Willie CW · CIK 0001421559 · Director · Chairman & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 357,750

Underlying: Common Units · 357,750 shares

Expires not disclosed

F1 · security: Phantom Units granted under Long-Term Incentive Plan (includes distribution equivalent rights payable in cash).

F2 · derivative.exercise_price: One common unit is deliverable, upon vesting, for each Phantom Unit that vests.

F3 · derivative.exercise_date: These phantom units will vest as follows: (a) Tranche 1, consisting of 178,875 phantom units, will vest on the August 2027 distribution date assuming continued service through such date; (b) Tranche 2, consisting of 89,437 phantom units (assuming 100% payout at target), will potentially vest on the August 2027 distribution date at a scaled payout range of between 0% to 200% based on PAA's total shareholder return (TSR) over the three-year period ending June 30, 2027 compared to the TSR of a selected peer group (payout based on numeric rank with 100% earned at median and interpolation between ranks, and with payout being subject to reduction by up to 25 basis points, but not below 100%, if actual TSR is negative); and

F4 · derivative.exercise_date: (c) Tranche 3, consisting of 89,438 phantom units (assuming 100% payout at target), will potentially vest on the Aug. 2027 distribution date at a scaled payout range of between 0% and 200% based on PAA achieving cumul. distributable cash flow (DCF) per common unit equivalent (CUE) of $7.75 over the 3-year period ending 6/30/27 (with payout equaling 100% at cumul. DCF/CUE over such period of $7.75 and being equal to 0% for cumul. DCF/CUE over such period of $6.975 or lower and 200% for cumul. DCF/CUE over such period of $8.71875 or higher, with interpolation btw. such points, and with payout being subject to reduction by 25 basis pts. if PAA's leverage ratio (long term debt to adj. EBITDA as calculated pursuant to PAA's sr. unsecured revolving credit facility) as of 6/30/27 is greater than the leverage ratio that equals the upper end of our then applicable target leverage ratio range (e.g., 3.0x is the upper end of PAA's current target leverage ratio range of 2.5x to 3.0x).

F5 · derivative.exercise_date: DERs associated with Tranche 1 will accrue for the first year and be paid in cash in a lump sum on the August 2025 distribution date; beginning in November 2025, DERs associated with Tranche 1 will be paid quarterly until the phantom units vest or terminate. DERs associated with Tranches 2 and 3 will accrue during the three-year vesting period and be paid in cash in a lump sum on the August 2027 distribution date with respect to each phantom unit that vests, if any, on such date. Any Tranche 2 or Tranche 3 phantom units that are determined to not have vested as of the August 2027 distribution date shall expire as of such date.

F3 · derivative.expiration_date: These phantom units will vest as follows: (a) Tranche 1, consisting of 178,875 phantom units, will vest on the August 2027 distribution date assuming continued service through such date; (b) Tranche 2, consisting of 89,437 phantom units (assuming 100% payout at target), will potentially vest on the August 2027 distribution date at a scaled payout range of between 0% to 200% based on PAA's total shareholder return (TSR) over the three-year period ending June 30, 2027 compared to the TSR of a selected peer group (payout based on numeric rank with 100% earned at median and interpolation between ranks, and with payout being subject to reduction by up to 25 basis points, but not below 100%, if actual TSR is negative); and

F4 · derivative.expiration_date: (c) Tranche 3, consisting of 89,438 phantom units (assuming 100% payout at target), will potentially vest on the Aug. 2027 distribution date at a scaled payout range of between 0% and 200% based on PAA achieving cumul. distributable cash flow (DCF) per common unit equivalent (CUE) of $7.75 over the 3-year period ending 6/30/27 (with payout equaling 100% at cumul. DCF/CUE over such period of $7.75 and being equal to 0% for cumul. DCF/CUE over such period of $6.975 or lower and 200% for cumul. DCF/CUE over such period of $8.71875 or higher, with interpolation btw. such points, and with payout being subject to reduction by 25 basis pts. if PAA's leverage ratio (long term debt to adj. EBITDA as calculated pursuant to PAA's sr. unsecured revolving credit facility) as of 6/30/27 is greater than the leverage ratio that equals the upper end of our then applicable target leverage ratio range (e.g., 3.0x is the upper end of PAA's current target leverage ratio range of 2.5x to 3.0x).

F5 · derivative.expiration_date: DERs associated with Tranche 1 will accrue for the first year and be paid in cash in a lump sum on the August 2025 distribution date; beginning in November 2025, DERs associated with Tranche 1 will be paid quarterly until the phantom units vest or terminate. DERs associated with Tranches 2 and 3 will accrue during the three-year vesting period and be paid in cash in a lump sum on the August 2027 distribution date with respect to each phantom unit that vests, if any, on such date. Any Tranche 2 or Tranche 3 phantom units that are determined to not have vested as of the August 2027 distribution date shall expire as of such date.

SEC source: 0001062993-24-015244 · form4.xml · derivative · entry 3

Chiang Willie CW · CIK 0001421559 · Director · Chairman & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Units · 418,585 shares

Expires 2024-08-14

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.

F1 · security: Phantom Units granted under Long-Term Incentive Plan (includes distribution equivalent rights payable in cash).

F2 · derivative.exercise_price: One common unit is deliverable, upon vesting, for each Phantom Unit that vests.

SEC source: 0001062993-24-015244 · form4.xml · nonDerivative · entry 2

Chiang Willie CW · CIK 0001421559 · Director · Chairman & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 846,512

SEC source: 0001062993-24-015244 · form4.xml · nonDerivative · entry 1

Chiang Willie CW · CIK 0001421559 · Director · Chairman & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,011,226

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: 0001683168-24-004850 · ownership.xml · nonDerivative · entry 1

Chiang Willie CW · CIK 0001421559 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Trust

Disclosed balance after: 20,000

F1 · price: The price reported in column 4 is a weighted average price. The reported shares were purchased in multiple transactions through a broker-dealer at prices ranging from $43.87 to $43.91 per share, inclusive. The Reporting Person undertakes to provide, upon request, details regarding the number of shares purchased at each separate price to the staff of the Securities and Exchange Commission, Delta Air Lines, Inc., or a security holder of Delta Air Lines, Inc.

F2 · balance_after: The shares are held by the Chiang 2014 Management Trust, of which Mr. Chiang and his wife are co-trustees.

SEC source: 0001683168-24-004412 · ownership.xml · nonDerivative · entry 1

Chiang Willie CW · CIK 0001421559 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,040

F1 · shares: Non-employee members of Delta's Board of Directors receive an annual restricted stock award valued at $200,000. The shares reported in this Form 4 represent the annual restricted stock award grant to the Reporting Person, as approved by the Board of Directors on June 20, 2024. The shares were acquired in a transaction exempt under Rule 16b-3(d)(1).

F1 · price: Non-employee members of Delta's Board of Directors receive an annual restricted stock award valued at $200,000. The shares reported in this Form 4 represent the annual restricted stock award grant to the Reporting Person, as approved by the Board of Directors on June 20, 2024. The shares were acquired in a transaction exempt under Rule 16b-3(d)(1).

SEC source: 0001683168-24-002965 · ownership.xml · nonDerivative · entry 1

Chiang Willie CW · CIK 0001421559 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,000

F1 · price: The price reported in column 4 is a weighted average price. The reported shares were purchased in multiple transactions through a broker-dealer at prices ranging from $49.36 to $49.59 per share, inclusive. The Reporting Person undertakes to provide, upon request, details regarding the number of shares purchased at each separate price to the staff of the Securities and Exchange Commission, Delta Air Lines, Inc., or a security holder of Delta Air Lines, Inc.

SEC source: 0001062993-23-018595 · form4.xml · nonDerivative · entry 1

Chiang Willie CW · CIK 0001421559 · Director · Chairman & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 318,704

F1 · price: The price in column 4 reflects the weighted average price for the Class A shares. The shares were purchased in multiple transactions at prices ranging from $16.225 to $16.25. The reporting person will provide upon request by the SEC staff, the issuer or any security holder of the issuer full information regarding the number of shares purchased at each separate price.

SEC source: 0001062993-23-016950 · form4.xml · derivative · entry 1

Chiang Willie CW · CIK 0001421559 · Director · Chairman & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 324,100

Underlying: Common Units · 324,100 shares

Expires not disclosed

F1 · security: Grant of Phantom Units under Long-Term Incentive Plan (includes distribution equivalent rights payable in cash).

F2 · derivative.exercise_price: One common unit is deliverable, upon vesting, for each Phantom Unit that vests.

F3 · derivative.exercise_date: These phantom units will vest as follows: (a) Tranche 1, consisting of 162,050 phantom units, will vest on the August 2026 distribution date assuming continued service through such date; (b) Tranche 2, consisting of 81,025 phantom units (assuming 100% payout at target), will potentially vest on the August 2026 distribution date at a scaled payout range of between 0% to 200% based on PAA's total shareholder return (TSR) over the three-year period ending June 30, 2026 compared to the TSR of a selected peer group (payout based on numeric rank with 100% earned at median and interpolation between ranks, and with payout being subject to reduction by up to 25 basis points, but not below 100%, if actual TSR is negative); and

F4 · derivative.exercise_date: c) Tranche 3, consisting of 81,025 phantom units (assuming 100% payout at target), will potentially vest on the August 2026 distribution date at a scaled payout range of between 0% and 200% based on PAA achieving cumulative distributable cash flow (DCF) per common unit equivalent (CUE) of $7.45 over the three-year period ending June 30, 2026 (with payout equaling 100% at cumulative DCF/CUE over such period of $7.45 and being equal to 0% for cumulative DCF/CUE over such period of $6.705 or lower and 200% for cumulative DCF/CUE over such period of $8.38125 or higher, with interpolation between such points, and with payout being subject to reduction by 25 basis points if PAA's leverage ratio (long term debt/adjusted EBITDA) as of June 30, 2026 is greater than the leverage ratio that equals the upper end of our then applicable guidance range (e.g., 3.5x is the upper end of PAA's current public guidance range of 3.0x to 3.5x)).

F5 · derivative.exercise_date: DERs associated with Tranche 1 will accrue for the first year and be paid in cash in a lump sum on the August 2024 distribution date; beginning in November 2024, DERs associated with Tranche 1 will be paid quarterly until the phantom units vest or terminate. DERs associated with Tranches 2 and 3 will accrue during the three-year vesting period and be paid in cash in a lump sum on the August 2026 distribution date with respect to each phantom unit that vests, if any, on such date. Any Tranche 2 or Tranche 3 phantom units that are determined to not have vested as of the August 2026 distribution date shall expire as of such date.

F3 · derivative.expiration_date: These phantom units will vest as follows: (a) Tranche 1, consisting of 162,050 phantom units, will vest on the August 2026 distribution date assuming continued service through such date; (b) Tranche 2, consisting of 81,025 phantom units (assuming 100% payout at target), will potentially vest on the August 2026 distribution date at a scaled payout range of between 0% to 200% based on PAA's total shareholder return (TSR) over the three-year period ending June 30, 2026 compared to the TSR of a selected peer group (payout based on numeric rank with 100% earned at median and interpolation between ranks, and with payout being subject to reduction by up to 25 basis points, but not below 100%, if actual TSR is negative); and

F4 · derivative.expiration_date: c) Tranche 3, consisting of 81,025 phantom units (assuming 100% payout at target), will potentially vest on the August 2026 distribution date at a scaled payout range of between 0% and 200% based on PAA achieving cumulative distributable cash flow (DCF) per common unit equivalent (CUE) of $7.45 over the three-year period ending June 30, 2026 (with payout equaling 100% at cumulative DCF/CUE over such period of $7.45 and being equal to 0% for cumulative DCF/CUE over such period of $6.705 or lower and 200% for cumulative DCF/CUE over such period of $8.38125 or higher, with interpolation between such points, and with payout being subject to reduction by 25 basis points if PAA's leverage ratio (long term debt/adjusted EBITDA) as of June 30, 2026 is greater than the leverage ratio that equals the upper end of our then applicable guidance range (e.g., 3.5x is the upper end of PAA's current public guidance range of 3.0x to 3.5x)).

F5 · derivative.expiration_date: DERs associated with Tranche 1 will accrue for the first year and be paid in cash in a lump sum on the August 2024 distribution date; beginning in November 2024, DERs associated with Tranche 1 will be paid quarterly until the phantom units vest or terminate. DERs associated with Tranches 2 and 3 will accrue during the three-year vesting period and be paid in cash in a lump sum on the August 2026 distribution date with respect to each phantom unit that vests, if any, on such date. Any Tranche 2 or Tranche 3 phantom units that are determined to not have vested as of the August 2026 distribution date shall expire as of such date.

SEC source: 0001062993-23-016618 · form4.xml · derivative · entry 3

Chiang Willie CW · CIK 0001421559 · Director · Chairman & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Units · 430,103 shares

Expires 2023-08-14

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.

F1 · security: Phantom Units granted under Long-Term Incentive Plan (includes distribution equivalent rights payable in cash).

F2 · derivative.exercise_price: One common unit is deliverable, upon vesting, for each Phantom Unit that vests.

SEC source: 0001062993-23-016618 · form4.xml · nonDerivative · entry 2

Chiang Willie CW · CIK 0001421559 · Director · Chairman & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 592,641

SEC source: 0001062993-23-016618 · form4.xml · nonDerivative · entry 1

Chiang Willie CW · CIK 0001421559 · Director · Chairman & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 761,887

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: 0001062993-23-010492 · form4.xml · nonDerivative · entry 1

Chiang Willie CW · CIK 0001421559 · Director · Chairman & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 256,704

F1 · price: The price in column 4 reflects the weighted average price for the Class A shares. The shares were purchased in multiple transactions at prices ranging from $13.205 to $13.29. The reporting person will provide upon request by the SEC staff, the issuer or any security holder of the issuer full information regarding the number of shares purchased at each separate price.

SEC source: 0001062993-23-000524 · form4.xml · derivative · entry 2

Chiang Willie CW · CIK 0001421559 · Director · Chairman & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 353,489

Underlying: Common Units · 353,489 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 · kind: Pursuant to the limited partnership agreement of Plains AAP, L.P. ("AAP"), a holder of vested Class B Units of AAP, (the "Class B Units") may convert (the "Conversion Right"), at any time and from time to time, such Class B Units into Class A Units of AAP (the "Class A Units") and Class B Shares (the "Class B Shares") of Plains GP Holdings, L.P. ("PAGP"), at a conversion ratio of approximately 0.941 Class A Units and Class B Shares for each Class B Unit. The Conversion Right does not expire. On January 4, 2023, the Reporting Person exercised his right to convert 375,521 vested Class B Units into 353,489 Class A Units and Class B shares.

F2 · derivative.exercise_date: Pursuant to the limited partnership agreement of AAP, Reporting Person has the right, at any time and from time to time, to redeem (the "Redemption Right") his Class A Units, together with a like number of Class B Shares, for common units of Plains All American Pipeline, L.P. on a one-for-one basis. The Reporting Person has not yet exercised the Redemption Right; the Redemption Right does not expire.

F2 · derivative.expiration_date: Pursuant to the limited partnership agreement of AAP, Reporting Person has the right, at any time and from time to time, to redeem (the "Redemption Right") his Class A Units, together with a like number of Class B Shares, for common units of Plains All American Pipeline, L.P. on a one-for-one basis. The Reporting Person has not yet exercised the Redemption Right; the Redemption Right does not expire.

SEC source: 0001062993-23-000524 · form4.xml · derivative · entry 1

Chiang Willie CW · CIK 0001421559 · Director · Chairman & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Units/Class B Shares · 353,489 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 · kind: Pursuant to the limited partnership agreement of Plains AAP, L.P. ("AAP"), a holder of vested Class B Units of AAP, (the "Class B Units") may convert (the "Conversion Right"), at any time and from time to time, such Class B Units into Class A Units of AAP (the "Class A Units") and Class B Shares (the "Class B Shares") of Plains GP Holdings, L.P. ("PAGP"), at a conversion ratio of approximately 0.941 Class A Units and Class B Shares for each Class B Unit. The Conversion Right does not expire. On January 4, 2023, the Reporting Person exercised his right to convert 375,521 vested Class B Units into 353,489 Class A Units and Class B shares.

F1 · derivative.exercise_date: Pursuant to the limited partnership agreement of Plains AAP, L.P. ("AAP"), a holder of vested Class B Units of AAP, (the "Class B Units") may convert (the "Conversion Right"), at any time and from time to time, such Class B Units into Class A Units of AAP (the "Class A Units") and Class B Shares (the "Class B Shares") of Plains GP Holdings, L.P. ("PAGP"), at a conversion ratio of approximately 0.941 Class A Units and Class B Shares for each Class B Unit. The Conversion Right does not expire. On January 4, 2023, the Reporting Person exercised his right to convert 375,521 vested Class B Units into 353,489 Class A Units and Class B shares.

F1 · derivative.expiration_date: Pursuant to the limited partnership agreement of Plains AAP, L.P. ("AAP"), a holder of vested Class B Units of AAP, (the "Class B Units") may convert (the "Conversion Right"), at any time and from time to time, such Class B Units into Class A Units of AAP (the "Class A Units") and Class B Shares (the "Class B Shares") of Plains GP Holdings, L.P. ("PAGP"), at a conversion ratio of approximately 0.941 Class A Units and Class B Shares for each Class B Unit. The Conversion Right does not expire. On January 4, 2023, the Reporting Person exercised his right to convert 375,521 vested Class B Units into 353,489 Class A Units and Class B shares.

SEC source: 0001062993-23-000528 · form4.xml · derivative · entry 2

Chiang Willie CW · CIK 0001421559 · Director · Chairman & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 353,489

Underlying: Class A Shares · 353,489 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 · kind: Pursuant to the limited partnership agreement of Plains AAP, L.P. ("AAP"), a holder of vested Class B Units of AAP, (the "Class B Units") may convert (the "Conversion Right"), at any time and from time to time, such Class B Units into Class A Units of AAP (the "Class A Units") and Class B Shares (the "Class B Shares") of Plains GP Holdings, L.P. ("PAGP"), at a conversion ratio of approximately 0.941 Class A Units and Class B Shares for each Class B Unit. The Conversion Right does not expire. On January 4, 2023, the Reporting Person exercised his right to convert 375,521 vested Class B Units into 353,489 Class A Units and Class B shares.

F2 · derivative.exercise_date: Pursuant to the limited partnership agreement of AAP, Reporting Person has the right, at any time and from time to time, to exchange (the "Exchange Right") his Class A Units, together with like number of Class B Shares, for Class A Shares of PAGP on a one-for-one basis. The Reporting Person has not yet exercised the Exchange Right; the Exchange Right does not expire.

F2 · derivative.expiration_date: Pursuant to the limited partnership agreement of AAP, Reporting Person has the right, at any time and from time to time, to exchange (the "Exchange Right") his Class A Units, together with like number of Class B Shares, for Class A Shares of PAGP on a one-for-one basis. The Reporting Person has not yet exercised the Exchange Right; the Exchange Right does not expire.

SEC source: 0001062993-23-000528 · form4.xml · derivative · entry 1

Chiang Willie CW · CIK 0001421559 · Director · Chairman & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Units/Class B Shares · 353,489 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 · kind: Pursuant to the limited partnership agreement of Plains AAP, L.P. ("AAP"), a holder of vested Class B Units of AAP, (the "Class B Units") may convert (the "Conversion Right"), at any time and from time to time, such Class B Units into Class A Units of AAP (the "Class A Units") and Class B Shares (the "Class B Shares") of Plains GP Holdings, L.P. ("PAGP"), at a conversion ratio of approximately 0.941 Class A Units and Class B Shares for each Class B Unit. The Conversion Right does not expire. On January 4, 2023, the Reporting Person exercised his right to convert 375,521 vested Class B Units into 353,489 Class A Units and Class B shares.

F1 · derivative.exercise_date: Pursuant to the limited partnership agreement of Plains AAP, L.P. ("AAP"), a holder of vested Class B Units of AAP, (the "Class B Units") may convert (the "Conversion Right"), at any time and from time to time, such Class B Units into Class A Units of AAP (the "Class A Units") and Class B Shares (the "Class B Shares") of Plains GP Holdings, L.P. ("PAGP"), at a conversion ratio of approximately 0.941 Class A Units and Class B Shares for each Class B Unit. The Conversion Right does not expire. On January 4, 2023, the Reporting Person exercised his right to convert 375,521 vested Class B Units into 353,489 Class A Units and Class B shares.

F1 · derivative.expiration_date: Pursuant to the limited partnership agreement of Plains AAP, L.P. ("AAP"), a holder of vested Class B Units of AAP, (the "Class B Units") may convert (the "Conversion Right"), at any time and from time to time, such Class B Units into Class A Units of AAP (the "Class A Units") and Class B Shares (the "Class B Shares") of Plains GP Holdings, L.P. ("PAGP"), at a conversion ratio of approximately 0.941 Class A Units and Class B Shares for each Class B Unit. The Conversion Right does not expire. On January 4, 2023, the Reporting Person exercised his right to convert 375,521 vested Class B Units into 353,489 Class A Units and Class B shares.

SEC source: 0001062993-22-018417 · form4.xml · derivative · entry 1

Chiang Willie CW · CIK 0001421559 · Director · Chairman & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 440,000

Underlying: Common Units · 440,000 shares

Expires not disclosed

F1 · security: Grant of Phantom Units under Long-Term Incentive Plan (includes distribution equivalent rights payable in cash).

F2 · derivative.exercise_price: One common unit is deliverable, upon vesting, for each Phantom Unit that vests.

F3 · derivative.exercise_date: These phantom units will vest as follows: (a) Tranche 1, consisting of 220,000 phantom units, will vest on the August 2025 distribution date assuming continued service through such date; (b) Tranche 2, consisting of 110,000 phantom units (assuming 100% payout at target), will potentially vest on the August 2025 distribution date at a scaled payout range of between 0% to 200% (0 units to 220,000 units) based on PAA's total shareholder return (TSR) over the three-year period ending June 30, 2025 compared to the TSR of a selected peer group (payout based on numeric rank with 100% earned at median and interpolation between ranks except that 0% payout for bottom two positions and 200% payout for top two positions, and with payout being subject to reduction by up to 25 basis points if actual TSR is negative); and

F4 · derivative.exercise_date: (c) Tranche 3, consisting of 110,000 phantom units (assuming 100% payout at target), will potentially vest on the August 2025 distribution date at a scaled payout range of between 0% to 200% (0 units to 220,000 units) based on PAA achieving cumulative distributable cash flow ("DCF") per common unit equivalent ("CUE") of $7.05 over the three-year period ending June 30, 2025 (with such payout equaling 100% at cumulative DCF/CUE over such period of $7.05 and being equal to 0% for cumulative DCF/CUE over such period of $6.35 or lower and 200% for cumulative DCF/CUE over such period of $7.93 or higher, with interpolation between such points, and with payout being subject to reduction by 25 basis points if PAA's leverage ratio (long term debt/adjusted EBITDA) as of June 30, 2025 is greater than 3.5x).

F5 · derivative.exercise_date: DERs associated with Tranche 1 will accrue for the first year and be paid in cash in a lump sum on the August 2023 distribution date; beginning in November 2023, DERs associated with Tranche 1 will be paid quarterly until the phantom units vest or terminate. DERs associated with Tranches 2 and 3 will accrue during the three-year vesting period and be paid in cash in a lump sum on the August 2025 distribution date with respect to each phantom unit that vests, if any, on such date.

F3 · derivative.expiration_date: These phantom units will vest as follows: (a) Tranche 1, consisting of 220,000 phantom units, will vest on the August 2025 distribution date assuming continued service through such date; (b) Tranche 2, consisting of 110,000 phantom units (assuming 100% payout at target), will potentially vest on the August 2025 distribution date at a scaled payout range of between 0% to 200% (0 units to 220,000 units) based on PAA's total shareholder return (TSR) over the three-year period ending June 30, 2025 compared to the TSR of a selected peer group (payout based on numeric rank with 100% earned at median and interpolation between ranks except that 0% payout for bottom two positions and 200% payout for top two positions, and with payout being subject to reduction by up to 25 basis points if actual TSR is negative); and

F4 · derivative.expiration_date: (c) Tranche 3, consisting of 110,000 phantom units (assuming 100% payout at target), will potentially vest on the August 2025 distribution date at a scaled payout range of between 0% to 200% (0 units to 220,000 units) based on PAA achieving cumulative distributable cash flow ("DCF") per common unit equivalent ("CUE") of $7.05 over the three-year period ending June 30, 2025 (with such payout equaling 100% at cumulative DCF/CUE over such period of $7.05 and being equal to 0% for cumulative DCF/CUE over such period of $6.35 or lower and 200% for cumulative DCF/CUE over such period of $7.93 or higher, with interpolation between such points, and with payout being subject to reduction by 25 basis points if PAA's leverage ratio (long term debt/adjusted EBITDA) as of June 30, 2025 is greater than 3.5x).

F5 · derivative.expiration_date: DERs associated with Tranche 1 will accrue for the first year and be paid in cash in a lump sum on the August 2023 distribution date; beginning in November 2023, DERs associated with Tranche 1 will be paid quarterly until the phantom units vest or terminate. DERs associated with Tranches 2 and 3 will accrue during the three-year vesting period and be paid in cash in a lump sum on the August 2025 distribution date with respect to each phantom unit that vests, if any, on such date.

SEC source: 0001062993-22-018112 · form4.xml · derivative · entry 3

Chiang Willie CW · CIK 0001421559 · Director · Chairman & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 62,870

Underlying: Common Units · 62,870 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: Phantom Units granted under Long-Term Incentive Plan (includes distribution equivalent rights payable in cash).

F2 · derivative.exercise_price: One common unit is deliverable, upon vesting, for each Phantom Unit that vests.

F3 · derivative.expiration_date: N/A

SEC source: 0001062993-22-018112 · form4.xml · nonDerivative · entry 2

Chiang Willie CW · CIK 0001421559 · Director · Chairman & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 331,784

SEC source: 0001062993-22-018112 · form4.xml · nonDerivative · entry 1

Chiang Willie CW · CIK 0001421559 · Director · Chairman & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 356,524

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: 0001615619-21-000069 · edgar.xml · derivative · entry 1

Chiang Willie CW · CIK 0001421559 · Director · Chairman and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 300,600

Underlying: Common Units · 300,600 shares

Expires not disclosed

F1 · security: Grant of phantom units under Long-Term Incentive Plan (includes associated distribution equivalent rights (payable in cash)).

F2 · derivative.exercise_price: One common unit is deliverable, upon vesting, for each Phantom Unit that vests.

F3 · derivative.exercise_date: These phantom units will vest as follows: (a) Tranche 1, consisting of 150,300 phantom units, will vest on the August 2024 distribution date assuming continued service through such date; (b) Tranche 2, consisting of 75,150 phantom units (assuming 100% payout at target), will potentially vest on the August 2024 distribution date at a scaled payout range of between 0% to 200% (0 units to 150,300 units) based on PAA's total shareholder return (TSR) over the three-year period ending June 30, 2024 compared to the TSR of a selected peer group; and (c) Tranche 3, consisting of 75,150 phantom units (assuming 100% payout at target), will potentially vest on the August 2024 distribution date at a scaled payout range of between 0% to 200% (0 units to 150,300 units) based on PAA achieving cumulative distributable cash flow per common unit equivalent of $6.00 over the three-year period ending June 30, 2024 (with such payout being subject to adjustment by plus or minus 50 gross percentage points (subject to a cap of 200%) based on the extent to which PAA achieves a leverage ratio as of June 30, 2024 that is less than or greater than, respectively, the target leverage ratio for such date assumed in PAA's long term plan as of August 2021, plus or minus .15x, as applicable).

F4 · derivative.exercise_date: DERs associated with Tranche 1 will accrue for the first year and be paid in cash in a lump sum on the August 2022 distribution date; beginning in November 2022, DERs associated with Tranche 1 will be paid quarterly until the phantom units vest. DERs associated with Tranches 2 and 3 will accrue during the three-year vesting period and be paid in cash in a lump sum on the August 2024 distribution date with respect to each phantom unit that vests on such date.

F3 · derivative.expiration_date: These phantom units will vest as follows: (a) Tranche 1, consisting of 150,300 phantom units, will vest on the August 2024 distribution date assuming continued service through such date; (b) Tranche 2, consisting of 75,150 phantom units (assuming 100% payout at target), will potentially vest on the August 2024 distribution date at a scaled payout range of between 0% to 200% (0 units to 150,300 units) based on PAA's total shareholder return (TSR) over the three-year period ending June 30, 2024 compared to the TSR of a selected peer group; and (c) Tranche 3, consisting of 75,150 phantom units (assuming 100% payout at target), will potentially vest on the August 2024 distribution date at a scaled payout range of between 0% to 200% (0 units to 150,300 units) based on PAA achieving cumulative distributable cash flow per common unit equivalent of $6.00 over the three-year period ending June 30, 2024 (with such payout being subject to adjustment by plus or minus 50 gross percentage points (subject to a cap of 200%) based on the extent to which PAA achieves a leverage ratio as of June 30, 2024 that is less than or greater than, respectively, the target leverage ratio for such date assumed in PAA's long term plan as of August 2021, plus or minus .15x, as applicable).

F4 · derivative.expiration_date: DERs associated with Tranche 1 will accrue for the first year and be paid in cash in a lump sum on the August 2022 distribution date; beginning in November 2022, DERs associated with Tranche 1 will be paid quarterly until the phantom units vest. DERs associated with Tranches 2 and 3 will accrue during the three-year vesting period and be paid in cash in a lump sum on the August 2024 distribution date with respect to each phantom unit that vests on such date.

SEC source: 0001615619-21-000053 · edgar.xml · derivative · entry 3

Chiang Willie CW · CIK 0001421559 · Director · Chairman and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Units · 27,500 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: Phantom Units granted under Long-Term Incentive Plan (includes distribution equivalent rights payable in cash).

F2 · derivative.exercise_price: One common unit is deliverable, upon vesting, for each Phantom Unit that vests.

F3 · derivative.expiration_date: N/A

SEC source: 0001615619-21-000053 · edgar.xml · nonDerivative · entry 2

Chiang Willie CW · CIK 0001421559 · Director · Chairman and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 293,654

SEC source: 0001615619-21-000053 · edgar.xml · nonDerivative · entry 1

Chiang Willie CW · CIK 0001421559 · Director · Chairman and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 304,476

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: 0001615619-21-000029 · edgar.xml · derivative · entry 3

Chiang Willie CW · CIK 0001421559 · Director · Chairman and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Units · 25,000 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: Phantom Units granted under Long-Term Incentive Plan (includes distribution equivalent rights payable in cash).

F2 · derivative.exercise_price: One common unit is deliverable, upon vesting, for each Phantom Unit that vests.

F3 · derivative.expiration_date: N/A

SEC source: 0001615619-21-000029 · edgar.xml · nonDerivative · entry 2

Chiang Willie CW · CIK 0001421559 · Director · Chairman and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 276,976

SEC source: 0001615619-21-000029 · edgar.xml · nonDerivative · entry 1

Chiang Willie CW · CIK 0001421559 · Director · Chairman and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 286,814

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: 0001615619-20-000089 · edgar.xml · derivative · entry 6

Chiang Willie CW · CIK 0001421559 · Director · Chairman and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 27,500

Underlying: Common Units · 27,500 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: Phantom Units granted under Long-Term Incentive Plan (includes distribution equivalent rights payable in cash).

F2 · derivative.exercise_price: One common unit is deliverable, upon vesting, for each Phantom Unit that vests.

F3 · derivative.expiration_date: N/A

SEC source: 0001615619-20-000089 · edgar.xml · derivative · entry 5

Chiang Willie CW · CIK 0001421559 · Director · Chairman and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Units · 36,000 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: Phantom Units granted under Long-Term Incentive Plan (includes distribution equivalent rights payable in cash).

F2 · derivative.exercise_price: One common unit is deliverable, upon vesting, for each Phantom Unit that vests.

F3 · derivative.expiration_date: N/A

SEC source: 0001615619-20-000089 · edgar.xml · nonDerivative · entry 4

Chiang Willie CW · CIK 0001421559 · Director · Chairman and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 261,814

SEC source: 0001615619-20-000089 · edgar.xml · nonDerivative · entry 3

Chiang Willie CW · CIK 0001421559 · Director · Chairman and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 272,636

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: 0001615619-20-000089 · edgar.xml · nonDerivative · entry 2

Chiang Willie CW · CIK 0001421559 · Director · Chairman and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 245,136

SEC source: 0001615619-20-000089 · edgar.xml · nonDerivative · entry 1

Chiang Willie CW · CIK 0001421559 · Director · Chairman and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 259,302

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: 0001615619-20-000089 · edgar.xml · derivative · entry 7

Chiang Willie CW · CIK 0001421559 · Director · Chairman and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 375,940

Underlying: Common Units · 375,940 shares

Expires not disclosed

F1 · security: Phantom Units granted under Long-Term Incentive Plan (includes distribution equivalent rights payable in cash).

F2 · derivative.exercise_price: One common unit is deliverable, upon vesting, for each Phantom Unit that vests.

F4 · derivative.exercise_date: These phantom units will vest as follows: (a) Tranche 1, consisting of 187,970 phantom units, will vest on the August 2023 distribution date assuming continued service through such date; (b) Tranche 2, consisting of 93,985 phantom units (assuming 100% payout at target), will potentially vest on the August 2023 distribution date at a scaled payout range of between 0% to 200% (0 units to 187,970 units) based on PAA's total shareholder return (TSR) over the three-year period ending June 30, 2023 compared to the TSR of a selected peer group; and (c) Tranche 3, consisting of 93,985 phantom units (assuming 100% payout at target), will potentially vest on the August 2023 distribution date at a scaled payout range of between 0% to 200% (0 units to 187,970 units) based on (i) PAA achieving cumulative distributable cash flow per common unit equivalent of $6.00 over the three-year period ending June 30, 2023 and (ii) PAA achieving a leverage ratio as of June 30, 2023 consistent with the leverage ratio assumed in its long term plan as of August 2020.

F5 · derivative.exercise_date: DERs associated with Tranche 1 will accrue for the first year and be paid in cash in a lump sum on the August 2021 distribution date; beginning in November 2021, DERs associated with Tranche 1 will be paid quarterly until the phantom units vest. DERs associated with Tranches 2 and 3 will accrue during the three-year vesting period and be paid in cash in a lump sum on the August 2023 distribution date with respect to each phantom unit that vests on such date.

F4 · derivative.expiration_date: These phantom units will vest as follows: (a) Tranche 1, consisting of 187,970 phantom units, will vest on the August 2023 distribution date assuming continued service through such date; (b) Tranche 2, consisting of 93,985 phantom units (assuming 100% payout at target), will potentially vest on the August 2023 distribution date at a scaled payout range of between 0% to 200% (0 units to 187,970 units) based on PAA's total shareholder return (TSR) over the three-year period ending June 30, 2023 compared to the TSR of a selected peer group; and (c) Tranche 3, consisting of 93,985 phantom units (assuming 100% payout at target), will potentially vest on the August 2023 distribution date at a scaled payout range of between 0% to 200% (0 units to 187,970 units) based on (i) PAA achieving cumulative distributable cash flow per common unit equivalent of $6.00 over the three-year period ending June 30, 2023 and (ii) PAA achieving a leverage ratio as of June 30, 2023 consistent with the leverage ratio assumed in its long term plan as of August 2020.

F5 · derivative.expiration_date: DERs associated with Tranche 1 will accrue for the first year and be paid in cash in a lump sum on the August 2021 distribution date; beginning in November 2021, DERs associated with Tranche 1 will be paid quarterly until the phantom units vest. DERs associated with Tranches 2 and 3 will accrue during the three-year vesting period and be paid in cash in a lump sum on the August 2023 distribution date with respect to each phantom unit that vests on such date.

SEC source: 0001615619-20-000048 · edgar.xml · nonDerivative · entry 1

Chiang Willie CW · CIK 0001421559 · Director · Chairman and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 223,302

F1 · price: The price in column 4 reflects the weighted average price for the common units. The units were purchased in multiple transactions at prices ranging from $5.39 to $5.50. The reporting person will provide upon request by the SEC staff, the issuer or any security holder of the issuer full information regarding the number of units purchased at each separate price.

SEC source: 0001615619-20-000050 · edgar.xml · nonDerivative · entry 1

Chiang Willie CW · CIK 0001421559 · Director · Chairman and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 181,704

F1 · price: The price in column 4 reflects the weighted average price for the Class A shares. The shares were purchased in multiple transactions at prices ranging from $5.75 to $5.86. The reporting person will provide upon request by the SEC staff, the issuer or any security holder of the issuer full information regarding the number of shares purchased at each separate price.

SEC source: 0001615619-20-000030 · edgar.xml · nonDerivative · entry 2

Chiang Willie CW · CIK 0001421559 · Director · Chairman and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 140,104

F2 · price: The price in column 4 reflects the weighted average price for the Class A shares. The shares were purchased in multiple transactions at prices ranging from $15.57 to $15.78. The reporting person will provide upon request by the SEC staff, the issuer or any security holder of the issuer full information regarding the number of shares sold at each separate price.