Powell Industries Inc. insider Brett Alan Cope reported a sale of Powell common stock on July 9, 2026, according to a Form 4 filed July 10. The reported transaction involved 4,440 shares of common stock at a price of $241.55 per share, implying aggregate sale proceeds of approximately $1.07 million before any taxes, commissions, or fees. The filing describes the transaction as a sale and notes that it was executed pursuant to a Rule 10b5-1 trading plan adopted by Cope on November 26, 2025. Such plans allow insiders to schedule future trades under pre-set conditions, providing an affirmative defense against claims that trades were made on the basis of material nonpublic information, provided the plan was adopted in good faith. The document also includes an explanatory note that the reported holdings include shares subject to time-based vesting provisions. The excerpt provided does not show the full ownership table, transaction code line, or Cope’s beneficial ownership after the sale, so the number of Powell shares he retained following the transaction is not stated here. The Form 4 was signed on Cope’s behalf by Michael W. Metcalf under power of attorney on July 10, 2026. The filing is notable because it reflects a recent insider stock sale by a Powell Industries executive or affiliated insider at a price above $240 per share, while also indicating that the sale was prearranged months earlier under a 10b5-1 plan.