Phillips 66 (PSX) Shares Outstanding (Diluted Average) (2011 - 2026)

Phillips 66 has reported Shares Outstanding (Diluted Average) for 16 years, with the latest figure at $403.3 million in Q1 2026.

• For the quarter ending Q1 2026, Shares Outstanding (Diluted Average) fell 1.76% year-over-year to $403.3 million; the trailing twelve-month figure through Mar 2026 stood at $403.3 million (down 1.76% YoY), and the FY2025 full-year result was $408.1 million, down 3.28% from the prior year.
• Shares Outstanding (Diluted Average) for Q1 2026 stood at $403.3 million, down from $408.1 million in the prior quarter.
• The five-year high for Shares Outstanding (Diluted Average) was $473.7 million in Q4 2022, with the low at $403.3 million in Q1 2026.
• Historically, Shares Outstanding (Diluted Average) has averaged $437.5 million across 5 years, with a median of $431.9 million in 2024.
• Annual changes were most pronounced in 2022 — Shares Outstanding (Diluted Average) climbed 7.58% — and 2024, when it declined 8.4%.
• Phillips 66's Shares Outstanding (Diluted Average) stood at $473.7 million in 2022, then slipped by 4.33% to $453.2 million in 2023, then decreased by 6.91% to $421.9 million in 2024, then decreased by 3.28% to $408.1 million in 2025, then retreated by 1.17% to $403.3 million in 2026.
• The last three Shares Outstanding (Diluted Average) figures came in at $403.3 million (Q1 2026), $408.1 million (Q4 2025), and $405.5 million (Q3 2025), per Business Quant data.