Timothy Archer, President and CEO of Lam Research Corp, filed a Form 4 on September 10, 2026, disclosing the exercise of employee stock options and a same-day sale of 30,000 shares of common stock on September 9, 2026, pursuant to a pre-established Rule 10b5-1 trading plan.

Key Highlights

  • Option exercise: Archer exercised 30,000 employee stock options (transaction code M) at a conversion price of $30.033 per share on September 9, 2026.
  • Share sale: Archer disposed of 30,000 shares (transaction code S) at $319.26 per share on the same date.
  • 10b5-1 plan: According to the filing, the transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by Archer on February 24, 2026.
  • Direct beneficial ownership following transactions: 1,075,966 shares held directly, including shares subject to unvested restricted stock units.
  • Indirect holdings: An additional 48,025.72 shares held indirectly via a 401(k) plan and 5,670.002 shares held indirectly via a spouse's 401(k) plan.
  • Remaining options: 31,400 employee stock options remain directly held following the reported transaction, with an expiration date of March 2, 2027.

Archer's Option Exercise and Stock Sale Details at Lam Research

According to the Form 4 filed with the SEC on September 10, 2026, Timothy Archer, who serves as President and CEO of Lam Research Corp (NASDAQ:LRCX), exercised 30,000 employee stock options at a price of $30.033 per share on September 9, 2026. On the same date, he sold 30,000 shares of common stock at $319.26 per share. The filing notes that both transactions were carried out under a Rule 10b5-1 trading plan that Archer adopted on February 24, 2026.

Following the reported transactions, Archer directly held 1,075,966 shares of common stock, a figure the filing states includes shares subject to unvested restricted stock units. In addition, the filing discloses indirect beneficial ownership of 48,025.72 shares through a 401(k) plan and 5,670.002 shares through a spouse's 401(k) plan. The exercised options had a stated exercise price of $30.033 and were scheduled to become exercisable in three equal installments on March 2, 2021, March 2, 2022, and March 2, 2023, according to the filing's explanation of responses.

After the option exercise, the filing reports that Archer retains 31,400 employee stock options directly, which carry a conversion price of $30.033 and an expiration date of March 2, 2027. The Form 4 was signed by Marta Woods under a Power of Attorney and filed on September 10, 2026.

What Was Disclosed

The filing discloses that Lam Research's President and CEO exercised 30,000 stock options and sold 30,000 shares on September 9, 2026, under a pre-adopted 10b5-1 plan, with resulting direct beneficial ownership of 1,075,966 shares and 31,400 options remaining.