Welcome to our dedicated page for Lam Research SEC filings (Ticker: LRCX), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
The Lam Research Corporation (NASDAQ: LRCX) SEC filings page provides access to the company’s official regulatory disclosures, offering detailed insight into its operations as a global supplier of wafer fabrication equipment and services to the semiconductor industry. These documents are a primary source for understanding Lam’s financial performance, governance, capital structure, and key corporate decisions.
Investors can review current reports on Form 8-K, where Lam reports material events such as quarterly financial results, changes in its independent registered public accounting firm, and outcomes of stockholder meetings. For example, Lam has used Form 8-K to furnish earnings releases for quarters ended June 29, 2025 and September 28, 2025, to disclose the transition of its independent auditor from Ernst & Young LLP to KPMG LLP, and to report stockholder approval of the Lam 2025 Stock Incentive Plan and amendments to its Restated Certificate of Incorporation.
The company’s definitive proxy statement on Schedule 14A provides extensive information on corporate governance, board composition, executive compensation, equity incentive plans, and the items submitted to stockholders for vote at the annual meeting. This includes proposals related to director elections, advisory votes on executive compensation, auditor ratification, amendments to the certificate of incorporation, and stockholder proposals.
Through Lam’s annual and quarterly reports filed on Forms 10-K and 10-Q, users can examine comprehensive financial statements, management’s discussion and analysis, risk factors, and segment and geographic revenue details relevant to the semiconductor machinery manufacturing business. These filings complement the summarized data in earnings releases and help explain trends in systems revenue, customer support-related revenue, margins, cash balances, and other key metrics.
On Stock Titan, Lam Research filings are updated as they are posted to the SEC’s EDGAR system. AI-powered tools can assist by highlighting important sections, summarizing complex disclosures, and helping users locate information on topics such as stock incentive plans, auditor changes, dividend declarations, and board-authorized corporate actions. This makes it easier to interpret lengthy documents like 10-Ks, 10-Qs, and proxy statements, and to track how Lam’s regulatory reporting reflects its role in the semiconductor equipment industry.
Lam Research Corp: The Vanguard Group filed Amendment No. 14 to a Schedule 13G/A reporting that, after an internal realignment, it beneficially owns 0 shares of common stock, representing 0% of the class. The filing states certain Vanguard subsidiaries will report ownership separately in reliance on SEC Release No. 34-39538.
Lam Research Corp director Abhijit Y. Talwalkar reported a bona fide gift of 4,571 shares of common stock on March 10, 2026. The shares were transferred at a reported price of $0.00 per share, consistent with a non-cash charitable or personal gift. Following this disposition, Talwalkar directly holds 105,424 shares of Lam Research common stock, and this amount includes shares underlying unvested restricted stock units.
LAM RESEARCH CORP executive Karthikeyan Rammohan filed an initial Form 3 reporting his equity holdings as SVP, Global Ops & Ent Solns. The filing lists direct holdings of common stock and multiple grants of market-based performance restricted stock units that vest between 0% and 150% based on total shareholder return versus the PHLX Semiconductor Total Return Index over multi‑year performance periods ending in 2027, 2028, and 2029. It also notes additional common stock held indirectly through a trust and a 401(k) plan.
Lam Research Chief Financial Officer & EVP Douglas R. Bettinger reported multiple stock transactions. He exercised employee stock options for 51,270 shares at $49.092 and 26,480 shares at $98.153, receiving an equivalent number of common shares. On the same day, he sold 50,057 common shares at a weighted average price of $224.03, in transactions between $223.90 and $224.39. After these moves, he directly owned 1,081,705 common shares, and this amount includes shares underlying unvested restricted stock units.
LAM RESEARCH CORP Chief Legal Officer Ava Harter reported an open-market sale of 1,500 shares of common stock on March 4, 2026 at an average price of $222.66 per share. After this transaction, she directly owns 53,205.455 shares, which include shares subject to unvested restricted stock units.
LRCX reported an insider sale and recent restricted stock vesting. Ava A. Harter sold $930,000 worth of common stock (4,000 shares) on 03/02/2026. The filing also lists restricted stock vesting from the issuer of 1,478 shares on 02/28/2026 and 22 shares on 03/01/2026.
Fidelity Brokerage Services LLC submitted a Rule 144 notice relating to sales of Lam Research Corporation common stock. The filing shows a reported sale of $9,284,673.40 for 40,329 shares on 03/02/2026. The filing also lists securities to be sold by the issuer consisting of 31,080 and 18,977 shares tied to options granted on 03/01/2023 and 03/01/2024, respectively.
Lam Research Chief Financial Officer and EVP Douglas R. Bettinger reported multiple option exercises and a share sale. He exercised employee stock options into 66,? Wait, I must be precise: 16,620 + 37,980 + 11,710 = 66,310 shares; this sum is explicitly derivable, but instruction allows derived numbers only if needed. To avoid risk, I will not state the total, just list legs. Let's restart summary clearly.
Lam Research Chief Financial Officer and EVP Douglas R. Bettinger exercised several employee stock options into common stock on March 2, 2026, then sold 40,329 common shares in an open-market transaction at a weighted average price of $230.22. After these transactions he directly owned 1,054,012 common shares, including shares underlying unvested restricted stock units.
Lam Research Corp's Chief Legal Officer, Ava Harter, reported an open-market sale of company stock. On March 2, 2026, she sold 4,000 shares of Lam Research common stock at a price of $232.50 per share. After this transaction, she directly owned 54,705.455 shares of common stock.
Lam Research Chief Financial Officer and EVP Douglas R. Bettinger reported a mix of equity awards and tax-related share dispositions on February 27, 2026. He received 18,820 Market-based Performance Restricted Stock Units and 12,547 shares of common stock as stock awards, both at a reported price of $0 per share.
The restricted stock units vest in three equal installments on February 27, 2027, February 27, 2028, and February 27, 2029, and the market-based units can vest between 0% and 150% based on total shareholder return versus the PHLX Semiconductor Total Return Index during the performance period from February 2, 2026 through February 1, 2029. To cover tax withholding on vesting, 48,673 shares of common stock were automatically withheld at $233.89 per share, leaving him with 1,028,031 directly owned common shares and 18,820 market-based performance units following the reported transactions.