Lam Research Corp. filings document regulatory disclosures for a semiconductor wafer fabrication equipment company. Its Form 8-K reports include operating results and financial-condition updates, material-event disclosures, exhibits for quarterly earnings releases, governance matters, capital-structure items, and changes affecting security-holder rights.
Lam Research proxy and related filings cover annual meeting proposals, director elections, executive compensation advisory votes, stock incentive plan approvals, auditor ratification, charter amendments, stockholder proposals, and changes in the company’s independent registered public accounting firm.
Lam Research Corp. reported insider trading activity by its President and CEO on 12/17/2025. The filing shows sales and an option exercise in Lam Research common stock carried out under a Rule 10b5-1 trading plan adopted on August 19, 2025.
The CEO sold 50,000 shares of common stock at $163.86 per share, then exercised an employee stock option for 113,300 shares at an exercise price of $17.675 per share. Those 113,300 shares were then sold on the same day at $163.86 per share. After these transactions, the CEO directly beneficially owned 932,409 shares of Lam Research common stock, which includes shares subject to unvested restricted stock units.
The filing also lists indirect holdings of 48,025.816 shares through a 401(k) plan and 5,670.097 shares through the spouse's 401(k) plan, reflecting additional indirect economic exposure to Lam Research stock.
LAM RESEARCH CORP executive leadership reported an insider share sale. The company’s Chief Financial Officer and Executive Vice President filed a Form 4 disclosing the sale of 40,080 shares of common stock on 11/14/2025. The transaction was coded as a sale and carried a weighted average sale price of $150.6 per share, based on multiple trades within a narrow price range. Following this transaction, the officer reports beneficial ownership of 987,237 shares of Lam Research common stock, which includes shares subject to unvested restricted stock units.
Lam Research (LRCX) director reported insider transactions. On 11/07/2025, the reporting person acquired 1,635 shares at $0 and sold 30 shares at $159.52 pursuant to a Rule 10b5-1 trading plan adopted on November 12, 2024. On 11/10/2025, 1,622 shares were transferred as a gift to the Mayer Family Trust for no consideration.
Following these transactions, the reporting person held 1,635 shares directly and 30,552 shares indirectly via the trust. The filing notes that the person is trustee and the trust’s beneficiaries are the reporting person and immediate family, and that the reporting person remains the beneficial owner of the trust-held securities.
Lam Research (LRCX) disclosed that a company director acquired 1,635 shares of common stock on 11/07/2025 at a reported price of $0.
After this transaction, the director beneficially owned 18,475 shares, held directly. The reported total includes shares subject to unvested restricted stock units.
Lam Research (LRCX) Form 4: A director acquired 1,635 shares of common stock on 11/07/2025 at a price of $0. Following this transaction, the director beneficially owns 9,664 shares.
The filing notes that the reported amount includes shares subject to unvested restricted stock units. Ownership is listed as direct.
Lam Research (LRCX) reported an insider transaction by a director. On 11/07/2025, the director acquired 1,635 shares of common stock at $0. Following the transaction, the director beneficially owned 5,322 shares directly and 560 shares indirectly via a trust. The reported direct amount includes shares subject to unvested restricted stock units.
Lam Research (LRCX) director reported the acquisition of 1,635 shares of common stock at $0 on 11/07/2025, according to a Form 4.
Following the transaction, the reporting person beneficially owned 9,135 shares, held in direct ownership. The filing notes this amount includes shares subject to unvested restricted stock units.
Lam Research (LRCX): A company director reported an equity grant on a Form 4. On 11/07/2025, the director acquired 1,635 shares of common stock at $0, typically reflecting a stock or restricted stock unit award. Following this transaction, the director beneficially owned 191,375 shares.
The reported total includes shares subject to unvested restricted stock units, and the ownership is listed as direct.
Lam Research (LRCX) filed a Form 4 reporting insider activity. A director acquired 1,635 shares of common stock at a price of $0 on 11/07/2025. Following this transaction, the director’s beneficial ownership stands at 5,342 shares, held directly.
The footnote states the reported amount includes shares subject to unvested restricted stock units.
Lam Research (LRCX) disclosed an insider equity transaction by a director. On 11/07/2025, the director acquired 1,635 shares of common stock at a reported price of $0, consistent with an equity award. Following the transaction, the director beneficially owned 288,705 shares. The filing notes that this amount includes shares subject to unvested restricted stock units.