Brian Mandell, president of Phillips 66 ($PSX), sold 30,000 shares of company stock at $215.00 per share on August 11, 2026. The open-market sale had a total value of $6,450,000. Mandell reported the transaction in a Form 4 filed with the SEC on August 12, 2026, one day after the trade date. The filing listed 61,594.9177 shares owned after the sale.
The August 11 sale was not the only $PSX disposition Mandell reported in that filing. The same Form 4 also disclosed a sale of 3,300 shares on August 10 at $214.02 per share, worth $706,266. Across the two dates, Mandell sold 33,300 shares for roughly $7,156,266. Daily price data in the database showed $PSX closing at $215.52 on August 10 and $224.36 on August 11, with the August 11 session trading in a range of $214.205 to $224.68.
Mandell has filed several prior open-market $PSX sales. On March 12, 2026, he sold 42,800 shares at $169.527 per share for $7,255,755.60. On December 1, 2025, he sold 25,500 shares at $140.04 for $3,571,020. On November 18, 2025, he reported two sales — 14,100 shares for $1,937,365.38 and 12,100 shares for $1,669,800 — a combined 26,200 shares for about $3.61 million. His December and November 2025 filings each listed 56,837.9177 shares owned after those sales.
Other Phillips 66 insiders also filed sales in the surrounding weeks. Lisa Ann Davis sold three lots on August 10, 2026 — 1,000 shares, 200 shares, and 315 shares — for a combined $314,712.78. Kevin J Mitchell sold 29,400 shares on May 8, 2026, and 600 shares on May 11, 2026, for about $5.1 million combined; earlier, he sold 15,629 shares on March 30, 2026, and 30,000 shares on November 7, 2025. Don Baldridge sold 7,500 shares on February 17, 2026. Vanessa Allen Sutherland sold 4,394 shares each on February 4 and January 9, 2026, and 4,393 shares each on September 26 and September 9, 2025.
Purchases in the database were smaller in count and size. Kevin Omar Meyers bought 175 shares on May 6, 2026, and another 175 shares on March 17, 2026. Gregory Hayes bought 8,350 shares on August 14, 2025.
On the congressional side, the most recent $PSX disclosure in the database was a sale by Representative Jefferson Shreve on May 12, 2025, with a midpoint value of about $15,001. Shreve also reported a $PSX purchase on April 7, 2025, with a midpoint value of about $15,001. Congressional dollar figures are midpoint estimates of the disclosed brackets.
Across the trailing year, $PSX insider activity in the database was predominantly open-market sales. Mandell's March 12, 2026 sale, at $7,255,755.60, was larger in dollar terms than the August 11 transaction, and his August 2026 filings ranked among the largest of those transactions by dollar value.