Timothy Archer, President and CEO of Lam Research Corp, filed a Form 4 on October 26, 2026, disclosing the exercise of stock options and a same-day sale of 31,400 shares of common stock on October 23, 2026, pursuant to a Rule 10b5-1 trading plan.

Key Highlights

  • Option exercise: Archer acquired 31,400 shares via an employee stock option (transaction code M) at an exercise price of $30.033 per share on October 23, 2026.
  • Same-day sale: Archer disposed of 31,400 shares (transaction code S) at $227.02 per share on October 23, 2026.
  • 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 ownership after transaction: Following the reported transactions, Archer directly held 1,075,966 shares, a figure the filing notes includes shares subject to unvested restricted stock units.
  • Indirect holdings: The filing also reports 48,025.72 shares held indirectly through a 401(k) and 5,670.002 shares held indirectly through a spouse's 401(k).
  • Options extinguished: The 31,400 employee stock options exercised now show zero remaining derivative securities beneficially owned, with an expiration date of 03/02/2027.

Details of Timothy Archer's October 23 Option Exercise and Share Sale

According to the Form 4 filed with the SEC on October 26, 2026, Timothy Archer, President and CEO of Lam Research Corp (NASDAQ:LRCX), exercised employee stock options covering 31,400 shares at a conversion price of $30.033 per share. The underlying options were described in the filing as becoming exercisable in three equal installments on 03/02/2021, 03/02/2022, and 03/02/2023, with an expiration date of 03/02/2027. Following the exercise, the filing reports zero derivative securities of this type remaining.

On the same date, October 23, 2026, Archer disposed of 31,400 shares of common stock at a price of $227.02 per share. The filing states that both transactions were carried out under a Rule 10b5-1 trading plan that Archer adopted on February 24, 2026. After the exercise and sale, the filing reports Archer's direct beneficial ownership at 1,075,966 shares, with the footnote specifying that this total includes shares subject to unvested restricted stock units.

In addition to his direct holdings, 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 Form 4 was signed by Marta Woods under a power of attorney and filed on October 26, 2026.

What Was Disclosed

Lam Research Corp's President and CEO Timothy Archer disclosed the exercise of 31,400 stock options at $30.033 and the same-day sale of 31,400 shares at $227.02 on October 23, 2026, under a pre-established Rule 10b5-1 plan, leaving direct ownership of 1,075,966 shares.