Plains All American Pipeline EVP & COO Files Initial Beneficial Ownership Statement

Plains All American Pipeline, L.P. (PAA) – Initial Statement of Beneficial Ownership (Form 3)

Overview

On October 7, 2026, Dean Liollio, Executive Vice President & Chief Operating Officer of Plains All American Pipeline, L.P., filed an initial Form 3 statement disclosing beneficial ownership of equity securities as of the event date of October 2, 2026.

Reported Holdings

1. Non-Derivative Securities (Common Units):

   • Direct Ownership: 344,305 Common Units
   • Indirect Ownership:
     • 1,200 Common Units held by spouse
     • 130 Common Units held by child
   • Total Common Units: 345,635 units

2. Derivative Securities (Phantom Units):

   • Tranche 1 (Aug 2027 Vesting): 56,100 phantom units with performance and service conditions.
   • Tranche 2 (Aug 2028 Vesting): 56,750 phantom units with performance and service conditions.
   • Tranche 3 (Aug 2029 Vesting): 44,600 phantom units with performance and service conditions.
   • Retention/Service Grant (Aug 2029 Vesting): 150,000 phantom units.
   • Total Phantom Units: 307,450 units deliverable 1-for-1 upon vesting.

Significance and Market Impact

• Trading Significance: Low. Form 3 filings establish an insider's baseline equity holdings and do not report open-market purchases or sales.
• Executive Alignment: Mr. Liollio possesses a substantial initial equity position of over 345,000 common units along with 307,450 long-term incentive phantom units, demonstrating substantial alignment with unitholders as EVP & COO.