Olivier Blachier, President of Materials Solutions at Entegris, Inc. (NASDAQ:ENTG), filed a Form 4 on August 17, 2026, disclosing transactions in company common stock dated August 14, 2026.

Key Highlights

  • Option exercise: Blachier exercised 2,000 employee stock options at an exercise price of $80.71 per share on August 14, 2026.
  • Share sale: 2,000 shares of common stock were sold at $160.66 per share on August 14, 2026, pursuant to a Rule 10b5-1 trading plan.
  • Trading plan date: The Rule 10b5-1 plan was established by the reporting person on May 14, 2026, according to the filing.
  • Remaining common stock: Following the transactions, Blachier directly held 34,996.76 shares of common stock.
  • Remaining options: 3,972 employee stock options remain directly held after the exercise, with a final vesting installment due February 19, 2027.
  • ESPP shares: The pre-transaction share total included 99.81 shares acquired under the Entegris, Inc. Employee Stock Purchase Plan on June 30, 2026.

Blachier's August 2026 Option Exercise and Share Disposal at Entegris

According to the filing, Olivier Blachier, serving as President of Materials Solutions at Entegris, Inc., exercised 2,000 employee stock options on August 14, 2026, at a conversion price of $80.71 per share. Prior to the sale, the filing notes his beneficial ownership stood at 36,996.76 shares, a figure that included 99.81 shares acquired under the Entegris, Inc. Employee Stock Purchase Plan on June 30, 2026.

On the same date, August 14, 2026, the filing discloses that Blachier sold 2,000 shares of common stock at $160.66 per share. The filing states these shares "were sold pursuant to a Rule 10b5-1 Trading Plan established by the Reporting Person on May 14, 2026." Following these transactions, his directly held common stock position stood at 34,996.76 shares, according to the filing.

Regarding the derivative securities, the filing reports that the exercised options were awarded pursuant to the Entegris, Inc. 2020 Stock Plan "in consideration of services as an employee," with a derivative price of $0. The option block vests in four equal annual installments; the first three became exercisable on February 19, 2024, February 19, 2025, and February 19, 2026, respectively. The filing states the final installment will become exercisable on February 19, 2027. After the exercise, Blachier directly held 3,972 remaining employee stock options, according to the disclosure.

What Was Disclosed

The Form 4 covers an option exercise of 2,000 shares at $80.71 and a same-day sale of 2,000 shares at $160.66 by Entegris's President of Materials Solutions, executed under a pre-established Rule 10b5-1 trading plan, leaving him with 34,996.76 shares directly held.