X0609 4 2026-09-16 0001534701 Phillips 66 PSX 0001641265 Mandell Brian false 2331 CITYWEST BLVD. HOUSTON TX 77042 false true false false Executive Vice President false Common Stock 2026-09-16 4 M false 23400 74.7 A 84994.9177 D Common Stock 2026-09-16 4 S false 23400 265.059 D 61594.9177 D Employee Stock Option (Right to Buy) 74.70 2026-09-16 4 M false 23400 0 D 2031-02-09 Common Stock 23400 0 D Includes 22,182 Restricted Stock Units that settle for shares of Phillips 66 common stock on a 1--for-1 basis. The price of reported above is a weighted average price. These shares were sold in mutiple transactions at prices ranging from $264.96 to $265.16. The reporting person hereby undertakes to provide upon request to the SEC staff, the Issuer or a security holder of the Issuer, full information regarding the number of units and prices at which the transaction was effected. The stock options became exercisable in three equal annual installments beginning on February 9, 2022. /s/ William H. Bald, as Attorney-in-Fact 2026-09-18