The 2026 annual meeting of common and Series A Convertible Preferred unitholders was held on May 20, 2026. Approximately 83.2% of eligible units (441,976,013 units) were represented at the meeting. Unitholders provided instructions on how PAA should vote its Class C shares of Plains GP Holdings, L.P. (PAGP) at the PAGP annual meeting. Four Class I directors were elected to the board of PAA GP Holdings LLC until 2029. PricewaterhouseCoopers LLP was ratified as the independent registered public accounting firm for 2026. The 2025 named executive officer compensation was approved on a non-binding advisory basis with 60.5% support.