LRCX / Lam Research Corporation - Pengajuan SECLaporan Tahunan, Pernyataan Proksi

Lam Research Corporation
US ˙ NasdaqGS ˙ US5128071082

Mga Batayang Estadistika
LEI 549300I4GMO6D34U1T02
CIK 707549
SEC Filings
All companies that sell securities in the United States must register with the Securities and Exchange Commission (SEC) and file reports on a regular basis. These reports include company annual reports (10K, 10Q), news updates (8K), investor presentations (found in 8Ks), insider trades (form 4), ownership reports (13D, and 13G), and reports related to the specific securities sold, such as registration statements and prospectus. This page shows recent SEC filings related to Lam Research Corporation
SEC Filings (Chronological Order)
Halaman ini menyediakan daftar lengkap dan kronologis dari Pengajuan SEC, tidak termasuk pengajuan kepemilikan yang kami sediakan di tempat lain.
August 11, 2025 EX-19.1

r Trading Policy.

Exhibit 19.1 Document Name: LGL-70983 Insider Trading [LGL-1001] Policy Revision: 14.0 Page 1 of 17 Authorized By Title: SVP, Chief Legal Officer 1.0Statement of Policy Except as expressly permitted by this Insider Trading Policy (inclusive of Appendix A, referred to herein as the “Policy”), Lam Research Corporation prohibits any transaction in its securities by a person possessing material non-pu

August 11, 2025 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended June 29, 2025 ☐ TRANSITION REPORT PURSUANT T

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended June 29, 2025 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to . Commission file number: 0-12933

August 11, 2025 EX-4.6

Description of Common Stock

Exhibit 4.6 DESCRIPTION OF COMMON STOCK The following summary description sets forth some of the general terms and provisions of our common stock. Because this is a summary description, it does not contain all of the information that may be important to you. For a more detailed description of the common stock, you should refer to the provisions of our Restated Certificate of Incorporation, as amen

August 11, 2025 EX-21

Subsidiaries of the Registrant.

Exhibit 21 SUBSIDIARIES OF THE REGISTRANT* SUBSIDIARY (as of August 11, 2025) STATE OR OTHER JURISDICTION OF OPERATION Lam Research AG Austria Lam Research Management GmbH Austria Lam Research Salzburg GmbH Austria Lam Research Belgium BV Belgium Novellus Systems, Inc.

August 11, 2025 EX-25.1

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM T-1 STATEMENT OF ELIGIBILITY UNDER THE TRUST INDENTURE ACT OF 1939 OF A CORPORATION DESIGNATED TO ACT AS TRUSTEE CHECK IF AN APPLICATION TO DETERMINE ELIGIBILITY OF A TRUSTE

Exhibit 25.1 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM T-1 STATEMENT OF ELIGIBILITY UNDER THE TRUST INDENTURE ACT OF 1939 OF A CORPORATION DESIGNATED TO ACT AS TRUSTEE CHECK IF AN APPLICATION TO DETERMINE ELIGIBILITY OF A TRUSTEE PURSUANT TO SECTION 305(b)(2) || THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A. (Exact name of trustee as specified in its charter) (J

August 11, 2025 EX-FILING FEES

Calculation of Filing Fee Tables Form S-3ASR (Form Type) Lam Research Corporation (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities

Exhibit 107 Calculation of Filing Fee Tables Form S-3ASR (Form Type) Lam Research Corporation (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities  Security  Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Carry Forward Form Type Carry Forward File Number Carry Forward  Initial Effective Date Filing Fee Previously Paid In Connection with Unsold Securities to be Carried Forward Newly Registered Securities Fees to Be Paid Equity  Common Stock, par value $0.

August 11, 2025 S-3ASR

As filed with the Securities and Exchange Commission on August 11, 2025

TABLE OF CONTENTS As filed with the Securities and Exchange Commission on August 11, 2025 Registration No.

July 30, 2025 EX-99.1

Key Financial Data for the Quarters Ended June 29, 2025 and March 30, 2025 (in thousands, except per-share data, percentages, and basis points) U.S. GAAP June 2025 March 2025 Change Q/Q Revenue $ 5,171,393 $ 4,720,175 +9.6% Gross margin as percentage

Exhibit 99.1 FOR IMMEDIATE RELEASE Lam Research Corporation Reports Financial Results for the Quarter Ended June 29, 2025 FREMONT, Calif., July 30, 2025 - Lam Research Corporation (the "Company," "Lam," "Lam Research") today announced financial results for the quarter ended June 29, 2025 (the “June 2025 quarter”). Highlights for the June 2025 quarter were as follows: •Revenue of $5.17 billion. •U.

July 30, 2025 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K Current Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): July 30, 2025 LAM RESEARCH CORPORATION (Exact name of registrant as specified in its charter) Delaware 0-12933 94-2634797 (State or Other Jurisdiction of Incorporati

June 26, 2025 11-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K (Mark One) x ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2024 OR ¨ TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 0-12933 A. Full tit

June 2, 2025 SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT LAM RESEARCH CORPORATION (Exact name of registrant as specified in its charter) Delaware 0-12933 94-2634797 (State or Other Jurisdiction of

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT LAM RESEARCH CORPORATION (Exact name of registrant as specified in its charter) Delaware 0-12933 94-2634797 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification Number) 4650 Cushing Parkway Fremont, California 94538 (Address of principal exec

June 2, 2025 EX-1.01

Conflict Minerals Report of Lam Research

Exhibit 1.01 LAM RESEARCH CORPORATION CONFLICT MINERALS REPORT For the reporting period from January 1, 2024, through December 31, 2024 This Conflict Minerals Report (this “Report”) of Lam Research Corporation (including its consolidated subsidiaries, the “Company”, “Lam”, “we” or “our”) has been prepared pursuant to Rule 13p-1 and Form SD promulgated under the Securities Exchange Act of 1934, for

May 21, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K Current Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 20, 2025 LAM RESEARCH CORPORA

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K Current Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 20, 2025 LAM RESEARCH CORPORATION (Exact name of registrant as specified in its charter) Delaware 0-12933 94-2634797 (State or Other Jurisdiction of Incorporatio

May 21, 2025 EX-3.1

Amended and Restated Bylaws of of Lam Research Corporation Dated May 20, 2025

Exhibit 3.1 AMENDED AND RESTATED BYLAWS OF LAM RESEARCH CORPORATION Amended and restated as of May 20, 2025 ARTICLE I CORPORATE OFFICES 1.1REGISTERED OFFICE The registered office of the corporation shall be in the City of Wilmington, County of New Castle, State of Delaware. The name of the registered agent of the corporation at such location is The Corporation Trust Company. 1.2OTHER OFFICES The b

April 25, 2025 EX-10.3

Form of Market-Based Performance Restricted Stock Unit Award Agreement (U.S. Participants) - 2015 Stock Incentive Plan

Exhibit 10.3 LAM RESEARCH CORPORATION 2015 Stock Incentive Plan Market-Based Performance Restricted Stock Unit Award Agreement (U.S. Participants) Pursuant to the terms of the 2015 Stock Incentive Plan (the “Plan”) Lam Research Corporation, a Delaware corporation (the “Company”), hereby awards market-based performance restricted stock units (“mPRSUs”) to [Print Name] (the “Participant”) on the ter

April 25, 2025 EX-10.1

Form of Restricted Stock Unit Award Agreement (U.S. Participants) - 2015 Stock Incentive Plan

Exhibit 10.1 LAM RESEARCH CORPORATION 2015 Stock Incentive Plan Restricted Stock Unit Award Agreement (U.S. Participants) Pursuant to the terms of the 2015 Stock Incentive Plan (the “Plan”), Lam Research Corporation, a Delaware corporation (the “Company”), hereby awards restricted stock units (“RSUs”) to [Print Name] (the “Participant”) on the terms and conditions as set forth in this Restricted S

April 25, 2025 EX-10.4

Form of Market-Based Performance Restricted Stock Unit Award Agreement (International Participants) - 2015 Stock Incentive Plan

Exhibit 10.4 LAM RESEARCH CORPORATION 2015 Stock Incentive Plan Market-Based Performance Restricted Stock Unit Award Agreement (International Participants) Pursuant to the terms of the 2015 Stock Incentive Plan (the “Plan”) Lam Research Corporation, a Delaware corporation (the “Company”), hereby awards market-based performance restricted stock units (“mPRSUs”) to [Print Name] (the “Participant”) o

April 25, 2025 EX-10.2

Form of Restricted Stock Unit Award Agreement (International Participants) - 2015 Stock Incentive Plan

Exhibit 10.2 LAM RESEARCH CORPORATION 2015 Stock Incentive Plan Restricted Stock Unit Award Agreement (International Participants) Pursuant to the terms of the 2015 Stock Incentive Plan (the “Plan”), Lam Research Corporation, a Delaware corporation (the “Company”), hereby awards restricted stock units (“RSUs”) to [Print Name] (the “Participant”) on the terms and conditions as set forth in this Res

April 25, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 30, 2025 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 0-12933 LAM RESEARCH

April 23, 2025 EX-99.1

Key Financial Data for the Quarters Ended March 30, 2025 and December 29, 2024 (in thousands, except per-share data, percentages, and basis points) U.S. GAAP March 2025 December 2024 Change Q/Q Revenue $ 4,720,175 $ 4,376,047 + 8% Gross margin as per

Exhibit 99.1 FOR IMMEDIATE RELEASE Lam Research Corporation Reports Financial Results for the Quarter Ended March 30, 2025 FREMONT, Calif., April 23, 2025 - Lam Research Corporation (the "Company," "Lam," "Lam Research") today announced financial results for the quarter ended March 30, 2025 (the “March 2025 quarter”). Highlights for the March 2025 quarter were as follows: •Revenue of $4.72 billion

April 23, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K Current Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): April 23, 2025 LAM RESEARCH CORPO

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K Current Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): April 23, 2025 LAM RESEARCH CORPORATION (Exact name of registrant as specified in its charter) Delaware 0-12933 94-2634797 (State or Other Jurisdiction of Incorporat

January 31, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended December 29, 2024 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 0-12933 LAM RESEA

January 29, 2025 EX-10.1

Third Amended and Restated Credit Agreement dated January 27, 2025, among Lam Research Corporation, JPMorgan Chase Bank, N.A., as administrative agent, and the other agents and lenders listed therein, which is incorporated by reference to Exhibit 10.1 to the Registrant’s Current report on Form 8-K filed on January 29, 2025 (SEC File No. 000-12933).

EXHIBIT 10.1 EXECUTION VERSION THIRD AMENDED AND RESTATED CREDIT AGREEMENT dated as of January 27, 2025 among LAM RESEARCH CORPORATION the Lenders Party Hereto JPMORGAN CHASE BANK, N.A., as Administrative Agent BANK OF AMERICA, N.A., BARCLAYS BANK PLC, BNP PARIBAS, CITIBANK, N.A., and MIZUHO BANK, LTD., as Syndication Agents and DEUTSCHE BANK SECURITIES INC, GOLDMAN SACHS BANK USA, MUFG BANK, LTD.

January 29, 2025 EX-99.1

Key Financial Data for the Quarters Ended December 29, 2024 and September 29, 2024 (in thousands, except per-share data, percentages, and basis points) U.S. GAAP December 2024 September 2024 Change Q/Q Revenue $ 4,376,047 $ 4,167,976 + 5% Gross margi

Exhibit 99.1 FOR IMMEDIATE RELEASE Lam Research Corporation Reports Financial Results for the Quarter Ended December 29, 2024 FREMONT, Calif., January 29, 2025 - Lam Research Corporation (the "Company," "Lam," "Lam Research") today announced financial results for the quarter ended December 29, 2024 (the “December 2024 quarter”). Highlights for the December 2024 quarter were as follows: •Revenue of

January 29, 2025 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K Current Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): January 27, 2025 LAM RESEARCH CORPORATION (Exact name of registrant as specified in its charter) Delaware 0-12933 94-2634797 (State or Other Jurisdiction of Incorpor

January 29, 2025 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K Current Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): January 29, 2025 LAM RESEARCH CORPORATION (Exact name of registrant as specified in its charter) Delaware 0-12933 94-2634797 (State or Other Jurisdiction of Incorpor

November 7, 2024 8-K

Submission of Matters to a Vote of Security Holders

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K Current Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): November 5, 2024 LAM RESEARCH CORPORATION (Exact name of registrant as specified in its charter) Delaware 0-12933 94-2634797 (State or Other Jurisdiction of Incorpor

October 28, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 29, 2024 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 0-12933 LAM RESE

October 23, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K Current Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): October 23, 2024 LAM RESEARCH CORPORATION (Exact name of registrant as specified in its charter) Delaware 0-12933 94-2634797 (State or Other Jurisdiction of Incorpor

October 23, 2024 EX-99.1

Key Financial Data for the Quarters Ended September 29, 2024 and June 30, 2024 (in thousands, except per-share data, percentages, and basis points) U.S. GAAP September 2024 June 2024 Change Q/Q Revenue $ 4,167,976 $ 3,871,507 + 8% Gross margin as per

Exhibit 99.1 FOR IMMEDIATE RELEASE Lam Research Corporation Reports Financial Results for the Quarter Ended September 29, 2024 FREMONT, Calif., October 23, 2024 - Lam Research Corporation (the "Company," "Lam," "Lam Research") today announced financial results for the quarter ended September 29, 2024 (the “September 2024 quarter”). On May 21, 2024, the Company announced a ten-for-one stock split w

October 2, 2024 8-K

Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Material Modification to Rights of Security Holders, Financial Statements and Exhibits

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K Current Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): October 2, 2024 LAM RESEARCH CORPORATION (Exact name of registrant as specified in its charter) Delaware 0-12933 94-2634797 (State or Other Jurisdiction of Incorpora

October 2, 2024 EX-3.1

Certificate of Amendment to Restated Certificate of Incorporation of Lam Research Corporation

Exhibit 3.1 CERTIFICATE OF AMENDMENT TO RESTATED CERTIFICATE OF INCORPORATION OF LAM RESEARCH CORPORATION Lam Research Corporation (the “Corporation”), a corporation organized and existing under and by virtue of the General Corporation Law of the State of Delaware, does hereby certify that: FIRST: That the first paragraph of Article FOURTH of the Restated Certificate of Incorporation is hereby ame

September 25, 2024 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant  ☐ Check the appropriate box:  ☐ Preliminary Proxy Statement  ☐ Con

September 25, 2024 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant  ☐ Check the appropriate box:  ☐ Preliminary Proxy Statement  ☐ Confidential, for Use

September 25, 2024 8-K

Other Events

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K Current Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): September 25, 2024 LAM RESEARCH CORPORATION (Exact name of registrant as specified in its charter) Delaware 0-12933 94-2634797 (State or Other Jurisdiction of Incorp

September 18, 2024 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K Current Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): September 13, 2024 LAM RESEARCH CORPORATION (Exact name of registrant as specified in its charter) Delaware 0-12933 94-2634797 (State or Other Jurisdiction of Incorp

August 30, 2024 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K Current Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 28, 2024 LAM RESEARCH CORPORATION (Exact name of registrant as specified in its charter) Delaware 0-12933 94-2634797 (State or Other Jurisdiction of Incorpora

August 30, 2024 EX-99.1

Lam Research Appoints Ita Brennan and Mark Fields to Board of Directors

Exhibit 99.1 FOR IMMEDIATE RELEASE Lam Research Appoints Ita Brennan and Mark Fields to Board of Directors FREMONT, Calif., August 30, 2024 – Lam Research Corp. (Nasdaq: LRCX) today announced that Ita Brennan and Mark Fields have joined its board of directors, effective August 30, 2024. Brennan brings to the board significant senior executive-level financial management expertise in the technology

August 29, 2024 EX-10.27

Executive Change in Control Policy, as amended and restated.

Exhibit 10.27 Executive Change in Control Policy EXECUTIVE CHANGE IN CONTROL POLICY Amended and Restated Effective May 15, 2024 This Executive Change in Control Policy (this “Policy”) is adopted by the Board of Directors (the “Board”) of Lam Research Corporation, a Delaware corporation (the “Company”) and is amended and restated with an effective date of May 15, 2024. It is intended to comply with

August 29, 2024 EX-10.38

Non-employee Director Compensation Program, as amended.

Exhibit 10.38 Lam Research Corporation Non-Employee Director Compensation Program Amended effective as of May 15, 2024 Objective To target and pay the non-employee members of the board of directors (the “Board”) of Lam Research Corporation (the “Company”) at the median of the Company’s peer group, as measured every other year. Annual Cash Retainers For service as a director beginning with calendar

August 29, 2024 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended June 30, 2024 ☐ TRANSITION REPORT PURSUANT T

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended June 30, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to . Commission file number: 0-12933

August 29, 2024 EX-21

Subsidiaries of the Registrant.

Exhibit 21 SUBSIDIARIES OF THE REGISTRANT* SUBSIDIARY (as of August 29, 2024) STATE OR OTHER JURISDICTION OF OPERATION Lam Research AG Austria Lam Research Management GmbH Austria Semsysco GmbH Austria Lam Research Belgium BV Belgium Novellus Systems, Inc.

August 29, 2024 EX-19.1

Insider Trading Policy

Exhibit 19.1 Document Name: LGL-70983 Insider Trading [LGL-1001] Policy Revision: 13.0 Page 1 of 16 Authorized By Title: VP Legal, Corporate Legal Services 1.0Statement of Policy Except as expressly permitted by this Insider Trading Policy (inclusive of Appendix A, referred to herein as the “Policy”), Lam Research Corporation prohibits any transaction in its securities by a person possessing mater

August 29, 2024 EX-10.26

Executive Severance Policy, as amended and restated.

Exhibit 10.26 Executive Severance Policy EXECUTIVE SEVERANCE POLICY Amended and Restated Effective May 15, 2024 This Executive Severance Policy (this “Policy”) is adopted by the Board of Directors (the “Board”) of Lam Research Corporation, a Delaware corporation (the “Company”) and is amended and restated with an effective date of May 15, 2024. It is intended to comply with ERISA and with all othe

August 29, 2024 EX-97.1

Policy for the Recovery of Erroneously Awarded Compensation.

Exhibit 97.1 LAM RESEARCH CORPORATION Policy for the Recovery of Erroneously Awarded Compensation Effective December 1, 2023 Purpose As required pursuant to the listing standards of the Nasdaq Stock Market LLC (the “Stock Exchange”), Section 10D of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and Rule 10D-1 under the Exchange Act, the Board of Directors (the “Board”) of La

July 31, 2024 EX-99.1

Key Financial Data for the Quarters Ended June 30, 2024 and March 31, 2024 (in thousands, except per-share data, percentages, and basis points) U.S. GAAP June 2024 March 2024 Change Q/Q Revenue $ 3,871,507 $ 3,793,558 +2.1% Gross margin as percentage

Exhibit 99.1 FOR IMMEDIATE RELEASE Lam Research Corporation Reports Financial Results for the Quarter Ended June 30, 2024 FREMONT, Calif., July 31, 2024 - Lam Research Corporation (the "Company," "Lam," "Lam Research") today announced financial results for the quarter ended June 30, 2024 (the “June 2024 quarter”). Highlights for the June 2024 quarter were as follows: •Revenue of $3.87 billion. •U.

July 31, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K Current Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): July 31, 2024 LAM RESEARCH CORPORATION (Exact name of registrant as specified in its charter) Delaware 0-12933 94-2634797 (State or Other Jurisdiction of Incorporati

June 26, 2024 11-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K (Mark One) x ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 OR ¨ TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 0-12933 A. Full tit

May 31, 2024 SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT LAM RESEARCH CORPORATION (Exact name of registrant as specified in its charter) Delaware 0-12933 94-2634797 (State or Other Jurisdiction of

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT LAM RESEARCH CORPORATION (Exact name of registrant as specified in its charter) Delaware 0-12933 94-2634797 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification Number) 4650 Cushing Parkway Fremont, California 94538 (Address of principal exec

May 31, 2024 EX-1.01

Conflict Minerals Report of Lam Research Corporation.

Exhibit 1.01 LAM RESEARCH CORPORATION CONFLICT MINERALS REPORT For the reporting period from January 1, 2023 through December 31, 2023 This Conflict Minerals Report (this “Report”) of Lam Research Corporation (including its consolidated subsidiaries, the “Company”, “Lam”, “we” or “our”) has been prepared pursuant to Rule 13p-1 and Form SD promulgated under the Securities Exchange Act of 1934, for

May 21, 2024 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Other Events

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K Current Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 21, 2024 LAM RESEARCH CORPORATION (Exact name of registrant as specified in its charter) Delaware 0-12933 94-2634797 (State or Other Jurisdiction of Incorporatio

May 21, 2024 EX-99.1

Lam Research Corporation Announces $10 Billion Share Repurchase Authorization and a 10-for-1 Stock Split

Exhibit 99.1 FOR IMMEDIATE RELEASE Lam Research Corporation Announces $10 Billion Share Repurchase Authorization and a 10-for-1 Stock Split FREMONT, Calif. - (PRNewswire) –May 21, 2024 — Lam Research Corporation (Nasdaq: LRCX) today announced that its Board of Directors approved a $10 billion share repurchase authorization and a forward split of its outstanding shares of common stock at a ratio of

April 29, 2024 EX-10.3

Form of Market-Based Performance Restricted Stock Unit Award Agreement (U.S. Participants) - 2015 Stock Incentive Plan which is incorporated by reference to Exhibit 10.3 to the Registrant's Quarterly Report on Form 10-Q filed on April 29, 2024 (SEC File No. 000-12933).

Exhibit 10.3 LAM RESEARCH CORPORATION 2015 Stock Incentive Plan Market-Based Performance Restricted Stock Unit Award Agreement (U.S. Participants) Pursuant to the terms of the 2015 Stock Incentive Plan (the “Plan”) Lam Research Corporation, a Delaware corporation (the “Company”), hereby awards market-based performance restricted stock units (“mPRSUs”) to [Print Name] (the “Participant”) on the ter

April 29, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2024 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 0-12933 LAM RESEARCH

April 29, 2024 EX-10.4

Form of Market-Based Performance Restricted Stock Unit Award Agreement (International Participants) - 2015 Stock Incentive Plan which is incorporated by reference to Exhibit 10.4 to the Registrant's Quarterly Report on Form 10-Q filed on April 29, 2024 (SEC File No. 000-12933).

Exhibit 10.4 LAM RESEARCH CORPORATION 2015 Stock Incentive Plan Market-Based Performance Restricted Stock Unit Award Agreement (International Participants) Pursuant to the terms of the 2015 Stock Incentive Plan (the “Plan”) Lam Research Corporation, a Delaware corporation (the “Company”), hereby awards market-based performance restricted stock units (“mPRSUs”) to [Print Name] (the “Participant”) o

April 29, 2024 EX-10.2

Form of Restricted Stock Unit Agreement (International Participants) - 2015 Stock Incentive Plan which is incorporated by reference to Exhibit 10.2 to the Registrant's Quarterly Report on Form 10-Q filed on April 29, 2024 (SEC File No. 000-12933).

Exhibit 10.2 LAM RESEARCH CORPORATION 2015 Stock Incentive Plan Restricted Stock Unit Award Agreement (International Participants) Pursuant to the terms of the 2015 Stock Incentive Plan (the “Plan”), Lam Research Corporation, a Delaware corporation (the “Company”), hereby awards restricted stock units (“RSUs”) to [Print Name] (the “Participant”) on the terms and conditions as set forth in this Res

April 29, 2024 EX-10.1

Form of Restricted Stock Unit Agreement (U.S. Participants) - 2015 Stock Incentive Plan which is incorporated by reference to Exhibit 10.1 to the Registrant's Quarterly Report on Form 10-Q filed on April 29, 2024 (SEC File No. 000-12933)

Exhibit 10.1 LAM RESEARCH CORPORATION 2015 Stock Incentive Plan Restricted Stock Unit Award Agreement (U.S. Participants) Pursuant to the terms of the 2015 Stock Incentive Plan (the “Plan”), Lam Research Corporation, a Delaware corporation (the “Company”), hereby awards restricted stock units (“RSUs”) to [Print Name] (the “Participant) on the terms and conditions as set forth in this Restricted St

April 24, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K Current Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): April 24, 2024 LAM RESEARCH CORPORATION (Exact name of registrant as specified in its charter) Delaware 0-12933 94-2634797 (State or Other Jurisdiction of Incorporat

April 24, 2024 EX-99.1

Key Financial Data for the Quarters Ended March 31, 2024 and December 24, 2023 (in thousands, except per-share data, percentages, and basis points) U.S. GAAP March 2024 December 2023 Change Q/Q Revenue $ 3,793,558 $ 3,758,259 + 0.9% Gross margin as p

Exhibit 99.1 FOR IMMEDIATE RELEASE Lam Research Corporation Reports Financial Results for the Quarter Ended March 31, 2024 FREMONT, Calif., April 24, 2024 - Lam Research Corporation (the "Company," "Lam," "Lam Research") today announced financial results for the quarter ended March 31, 2024 (the “March 2024 quarter”). Highlights for the March 2024 quarter were as follows: •Revenue of $3.79 billion

February 13, 2024 SC 13G/A

LRCX / Lam Research Corporation / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SC 13G/A 1 tv01312-lamresearchcorp.htm SCHEDULE 13G/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 12)* Name of issuer: Lam Research Corp Title of Class of Securities: Common Stock CUSIP Number: 512807108 Date of Event Which Requires Filing of this Statement: December 29, 2023 Check the appropriate box to designate

January 29, 2024 EX-10.1

Form of Indemnification Agreement which is incorporated by reference to Exhibit 10.1 to the Registrant’s Quarterly Report on Form 10-Q filed on January 29, 2024 (SEC File No. 000-12933).

Exhibit 10.1 LAM RESEARCH CORPORATION INDEMNIFICATION AGREEMENT This Indemnification Agreement (“Agreement”) is made as of [date] by and between Lam Research Corporation, a Delaware corporation (the “Company”), and [Print Name] (“Indemnitee”). RECITALS WHEREAS, the Company desires to attract and retain the services of highly qualified individuals, such as Indemnitee, to serve the Company; WHEREAS,

January 29, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended December 24, 2023 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 0-12933 LAM RESEA

January 24, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K Current Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): January 24, 2024 LAM RESEARCH CORPORATION (Exact name of registrant as specified in its charter) Delaware 0-12933 94-2634797 (State or Other Jurisdiction of Incorpor

January 24, 2024 EX-99.1

Key Financial Data for the Quarters Ended December 24, 2023 and September 24, 2023 (in thousands, except per-share data, percentages, and basis points) U.S. GAAP December 2023 September 2023 Change Q/Q Revenue $ 3,758,259 $ 3,482,062 + 7.9% Gross mar

Exhibit 99.1 FOR IMMEDIATE RELEASE Lam Research Corporation Reports Financial Results for the Quarter Ended December 24, 2023 FREMONT, Calif., January 24, 2024 - Lam Research Corporation (the "Company," "Lam," "Lam Research") today announced financial results for the quarter ended December 24, 2023 (the “December 2023 quarter”). Highlights for the December 2023 quarter were as follows: •Revenue of

November 9, 2023 EX-3.1

Bylaws of the Registrant, as amended and restated, dated November 8, 2023 which is incorporated by reference to Exhibit 3.1 to the Registrant’s Current Report on Form 8-K filed on November 9, 2023 (SEC File No. 000-12933).

Exhibit 3.1 AMENDED AND RESTATED BYLAWS OF LAM RESEARCH CORPORATION Amended and restated as of November 8, 2023 ARTICLE I CORPORATE OFFICES 1.1REGISTERED OFFICE The registered office of the corporation shall be in the City of Wilmington, County of New Castle, State of Delaware. The name of the registered agent of the corporation at such location is The Corporation Trust Company. 1.2OTHER OFFICES T

November 9, 2023 8-K

Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Financial Statements and Exhibits, Submission of Matters to a Vote of Security Holders

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K Current Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): November 7, 2023 LAM RESEARCH CORPORATION (Exact name of registrant as specified in its charter) Delaware 0-12933 94-2634797 (State or Other Jurisdiction of Incorpor

October 23, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 24, 2023 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 0-12933 LAM RESE

October 18, 2023 EX-99.1

Key Financial Data for the Quarters Ended September 24, 2023 and June 25, 2023 (in thousands, except per-share data, percentages, and basis points) U.S. GAAP September 2023 June 2023 Change Q/Q Revenue $ 3,482,062 $ 3,207,257 + 8.6% Gross margin as p

Exhibit 99.1 FOR IMMEDIATE RELEASE Lam Research Corporation Reports Financial Results for the Quarter Ended September 24, 2023 FREMONT, Calif., October 18, 2023 - Lam Research Corporation (the "Company," "Lam," "Lam Research") today announced financial results for the quarter ended September 24, 2023 (the “September 2023 quarter”). Highlights for the September 2023 quarter were as follows: •Revenu

October 18, 2023 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K Current Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): October 18, 2023 LAM RESEARCH CORPORATION (Exact name of registrant as specified in its charter) Delaware 0-12933 94-2634797 (State or Other Jurisdiction of Incorpor

September 27, 2023 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confid

September 27, 2023 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 File

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of

August 24, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K Current Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 23, 2023 LAM RESEARCH CORP

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K Current Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 23, 2023 LAM RESEARCH CORPORATION (Exact name of registrant as specified in its charter) Delaware 0-12933 94-2634797 (State or Other Jurisdiction of Incorpora

August 24, 2023 EX-99.1

Lam Research Appoints General Electric Alum John M. Dineen to Board of Directors

Exhibit 99.1 FOR IMMEDIATE RELEASE Lam Research Appoints General Electric Alum John M. Dineen to Board of Directors FREMONT, Calif., August 24, 2023 – Lam Research Corp. (NASDAQ: LRCX) today announced that John M. Dineen has joined its board of directors, effective August 24, 2023. Dineen brings to Lam extensive experience in technology, operations, and international business management, including

August 15, 2023 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended June 25, 2023 ☐ TRANSITION REPORT PURSUANT T

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended June 25, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to . Commission file number: 0-12933

August 15, 2023 EX-21

Subsidiaries of the Registrant.

Exhibit 21 SUBSIDIARIES OF THE REGISTRANT* SUBSIDIARY (as of August 15, 2023) STATE OR OTHER JURISDICTION OF OPERATION Lam Research AG Austria Lam Research Management GmbH Austria Semsysco GmbH Austria Lam Research Belgium BV Belgium Novellus Systems, Inc.

July 26, 2023 EX-99.1

Key Financial Data for the Quarters Ended June 25, 2023 and March 26, 2023 (in thousands, except per-share data, percentages, and basis points) U.S. GAAP June 2023 March 2023 Change Q/Q Revenue $ 3,207,257 $ 3,869,569 -17% Gross margin as percentage

Exhibit 99.1 FOR IMMEDIATE RELEASE Lam Research Corporation Reports Financial Results for the Quarter Ended June 25, 2023 FREMONT, Calif., July 26, 2023 - Lam Research Corporation (the "Company," "Lam," "Lam Research") today announced financial results for the quarter ended June 25, 2023 (the “June 2023 quarter”). Highlights for the June 2023 quarter were as follows: •Revenue of $3.21 billion. •U.

July 26, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K Current Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): July 26, 2023 LAM RESEARCH CORPOR

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K Current Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): July 26, 2023 LAM RESEARCH CORPORATION (Exact name of registrant as specified in its charter) Delaware 0-12933 94-2634797 (State or Other Jurisdiction of Incorporati

June 7, 2023 11-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K (Mark One) x ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 OR ¨ TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 0-12933 A. Full tit

May 31, 2023 EX-1.01

Conflict Minerals Report of Lam Research Corporation.

Exhibit 1.01 LAM RESEARCH CORPORATION CONFLICT MINERALS REPORT For the reporting period from January 1, 2022 through December 31, 2022 This Conflict Minerals Report (this “Report”) of Lam Research Corporation (including its consolidated subsidiaries, the “Company”, “Lam”, “we” or “our”) has been prepared pursuant to Rule 13p-1 and Form SD promulgated under the Securities Exchange Act of 1934, for

May 31, 2023 SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT LAM RESEARCH CORPORATION (Exact name of registrant as specified in its charter) Delaware 0-12933 94-2634797 (State or Other Jurisdiction of

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT LAM RESEARCH CORPORATION (Exact name of registrant as specified in its charter) Delaware 0-12933 94-2634797 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification Number) 4650 Cushing Parkway Fremont, California 94538 (Address of principal exec

April 24, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 26, 2023 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 0-12933 LAM RESEARCH

April 19, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K Current Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): April 19, 2023 LAM RESEARCH CORPO

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K Current Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): April 19, 2023 LAM RESEARCH CORPORATION (Exact name of registrant as specified in its charter) Delaware 0-12933 94-2634797 (State or Other Jurisdiction of Incorporat

April 19, 2023 EX-99.1

Key Financial Data for the Quarters Ended March 26, 2023 and December 25, 2022 (in thousands, except per-share data, percentages, and basis points) U.S. GAAP March 2023 December 2022 Change Q/Q Revenue $ 3,869,569 $ 5,277,569 - 26.7% Gross margin as

Exhibit 99.1 FOR IMMEDIATE RELEASE Lam Research Corporation Reports Financial Results for the Quarter Ended March 26, 2023 FREMONT, Calif., April 19, 2023 - Lam Research Corporation (the "Company," "Lam," "Lam Research") today announced financial results for the quarter ended March 26, 2023 (the “March 2023 quarter”). Highlights for the March 2023 quarter were as follows: •Revenue of $3.87 billion

February 21, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K Current Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): February 21, 2023 LAM RESEARCH CO

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K Current Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): February 21, 2023 LAM RESEARCH CORPORATION (Exact name of registrant as specified in its charter) Delaware 0-12933 94-2634797 (State or Other Jurisdiction of Incorpo

February 21, 2023 EX-99.1

Lam Research Announces New Executive Appointments to Extend Innovation Leadership and Position the Company for Long-Term Growth

Exhibit 99.1 FOR IMMEDIATE DISTRIBUTION Lam Research Announces New Executive Appointments to Extend Innovation Leadership and Position the Company for Long-Term Growth FREMONT, Calif., February 21, 2023 – Lam Research Corp. (NASDAQ: LRCX) today announced a series of changes to its management structure across operations, innovation, product groups and sales, which together are intended to further p

February 9, 2023 EX-99.1

Lam Research Appoints Semiconductor Engineering Leader Dr. Ho Kyu Kang to Board of Directors

Exhibit 99.1 Lam Research Appoints Semiconductor Engineering Leader Dr. Ho Kyu Kang to Board of Directors FREMONT, Calif., February 9, 2023 – Lam Research Corporation (NASDAQ: LRCX) today announced that Dr. Ho Kyu Kang has joined its board of directors, effective February 7, 2023. Dr. Kang brings to Lam four decades of experience in leading-edge semiconductor engineering and development. Dr. Kang

February 9, 2023 SC 13G/A

LRCX / Lam Research Corporation / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SC 13G/A 1 tv01272-lamresearchcorp.htm SCHEDULE 13G/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 11)* Name of issuer: Lam Research Corp. Title of Class of Securities: Common Stock CUSIP Number: 512807108 Date of Event Which Requires Filing of this Statement: December 30, 2022 Check the appropriate box to designat

February 9, 2023 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K Current Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): February 7, 2023 LAM RESEARCH CORPORATION (Exact name of registrant as specified in its charter) Delaware 0-12933 94-2634797 (State or Other Jurisdiction of Incorpor

February 9, 2023 EX-10.1

2004 Executive Incentive Plan, as Amended and Restated which is incorporated by reference to Exhibit 10.1 to the Registrant’s Current Report on Form 8-K filed on February 9, 2023 (SEC File No. 000-12933).

Exhibit 10.1 LAM RESEARCH CORPORATION 2004 EXECUTIVE INCENTIVE PLAN Amended and Restated Effective as of February 7, 2023 The Compensation and Human Resource Committee (the “Committee”) of the Board of Directors of Lam Research Corporation (“Company”) hereby adopts this amended and restated version of the 2004 Executive Incentive Plan (“Plan”), effective as of February 7, 2023. 1. Purpose. The pur

January 30, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended December 25, 2022 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 0-12933 LAM RESEA

January 30, 2023 EX-10.2

Amendment No. 1 to Second Amended and Restated Credit Agreement, dated December 7, 2022, among Lam Research Corporation, as borrower, the lenders party thereto and JPMorgan Chase Bank, N.A., as administrative agent

Exhibit 10.2 EXECUTION VERSION AMENDMENT NO. 1 TO SECOND AMENDED AND RESTATED CREDIT AGREEMENT THIS AMENDMENT NO. 1 TO SECOND AMENDED AND RESTATED CREDIT AGREEMENT (this “Amendment”), dated as of December 7, 2022, is entered into by and among LAM RESEARCH CORPORATION, a Delaware corporation (the “Borrower”), the lending institutions party hereto (each a “Lender” and, collectively, the “Lenders”) a

January 30, 2023 EX-10.1

Form of Restricted Stock Unit Agreement (U.S. Participants) - 2015 Stock Incentive Plan which is incorporated by reference to Exhibit 10.1 to the Registrant's Quarterly Report on Form 10-Q filed on January 30, 2023 (SEC File No. 000-12933).

Exhibit 10.1 LAM RESEARCH CORPORATION 2015 Stock Incentive Plan Restricted Stock Unit Award Agreement (U.S. Participants) Pursuant to the terms of the 2015 Stock Incentive Plan (the “Plan”) Lam Research Corporation, a Delaware corporation (the “Company”), hereby awards restricted stock units (“RSUs”) to the Grantee (the “Participant) on the terms and conditions as set forth in this Restricted Stoc

January 25, 2023 8-K

Financial Statements and Exhibits, Costs Associated with Exit or Disposal Activities, Results of Operations and Financial Condition

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K Current Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): January 23, 2023 LAM RESEARCH CORPORATION (Exact name of registrant as specified in its charter) Delaware 0-12933 94-2634797 (State or Other Jurisdiction of Incorpor

January 25, 2023 EX-99.1

Key Financial Data for the Quarters Ended December 25, 2022 and September 25, 2022 (in thousands, except per-share data, percentages, and basis points) U.S. GAAP December 2022 September 2022 Change Q/Q Revenue $ 5,277,569 $ 5,074,121 + 4% Gross margi

Exhibit 99.1 FOR IMMEDIATE RELEASE Lam Research Corporation Reports Financial Results for the Quarter Ended December 25, 2022 FREMONT, Calif., January 25, 2023 - Lam Research Corporation (the "Company," "Lam," "Lam Research") today announced financial results for the quarter ended December 25, 2022 (the “December 2022 quarter”). Highlights for the December 2022 quarter were as follows: •Revenue of

November 10, 2022 8-K

Submission of Matters to a Vote of Security Holders

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K Current Report Pursuant to Section 13 or 15(d) o f the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): November 08, 2022 LAM RESEARCH CORPORATION (Exact name of registrant as specified in its charter) Delaware 0-12933 94-2634797 (State or Other Jurisdiction of Incorp

October 24, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 25, 2022 or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 0-12933 LAM RESE

October 19, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K Current Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): October 19, 2022 LAM RESEARCH CORPORATION (Exact name of registrant as specified in its charter) Delaware 0-12933 94-2634797 (State or Other Jurisdiction of Incorpor

October 19, 2022 EX-99.1

Key Financial Data for the Quarters Ended September 25, 2022 and June 26, 2022 (in thousands, except per-share data, percentages, and basis points) U.S. GAAP September 2022 June 2022 Change Q/Q Revenue $ 5,074,121 $ 4,635,554 + 9.5% Gross margin as p

Exhibit 99.1 FOR IMMEDIATE RELEASE Lam Research Corporation Reports Financial Results for the Quarter Ended September 25, 2022 FREMONT, Calif., October 19, 2022 - Lam Research Corporation (the "Company," "Lam," "Lam Research") today announced financial results for the quarter ended September 25, 2022 (the “September 2022 quarter”). Highlights for the September 2022 quarter were as follows: •Revenu

September 28, 2022 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

DEFA14A 1 tm2219406d3defa14a.htm DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant x Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary P

September 28, 2022 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

TABLE OF CONTENTS ? ? UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

September 19, 2022 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K Current Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): September 14, 2022 LAM RESEARCH CORPORATION (Exact name of registrant as specified in its charter) Delaware 0-12933 94-2634797 (State or Other Jurisdiction of Incorp

August 24, 2022 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended June 26, 2022 ☐ TRANSITION REPORT PURSUANT T

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ? ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended June 26, 2022 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to . Commission file number: 0-12933

August 24, 2022 EX-21

Subsidiaries of the Registrant.

Exhibit 21 SUBSIDIARIES OF THE REGISTRANT* SUBSIDIARY (as of August 24, 2022) STATE OR OTHER JURISDICTION OF OPERATION Lam Research AG Austria Lam Research Management GmbH Austria Lam Research Belgium BV Belgium Novellus Systems, Inc.

July 27, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K Current Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): July 27, 2022 LAM RESEARCH CORPORATION (Exact name of registrant as specified in its charter) Delaware 0-12933 94-2634797 (State or Other Jurisdiction of Incorporati

July 27, 2022 EX-99.1

Key Financial Data for the Quarters Ended June 26, 2022 and March 27, 2022 (in thousands, except per-share data, percentages, and basis points) U.S. GAAP June 2022 March 2022 Change Q/Q Revenue $ 4,635,554 $ 4,060,416 +14% Gross margin as percentage

Exhibit 99.1 FOR IMMEDIATE RELEASE Lam Research Corporation Reports Financial Results for the Quarter Ended June 26, 2022 FREMONT, Calif., July 27, 2022 - Lam Research Corporation (the "Company," "Lam," "Lam Research") today announced financial results for the quarter ended June 26, 2022 (the ?June 2022 quarter?). Highlights for the June 2022 quarter were as follows: ?Revenue of $4.64 billion. ?U.

June 16, 2022 11-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K

11-K 1 lrcx11-kxdocumentx2021.htm 11-K Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K (Mark One) x ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2021 OR ¨ TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Com

May 31, 2022 SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT LAM RESEARCH CORPORATION (Exact name of registrant as specified in its charter) Delaware 0-12933 94-2634797 (State or Other Jurisdiction of

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT LAM RESEARCH CORPORATION (Exact name of registrant as specified in its charter) Delaware 0-12933 94-2634797 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification Number) 4650 Cushing Parkway Fremont, California 94538 (Address of principal exec

May 31, 2022 EX-1.01

Conflict Minerals Report of Lam Research Corporation.

EX-1.01 2 ex101conflictmineralsrepor.htm EX-1.01 Exhibit 1.01 LAM RESEARCH CORPORATION CONFLICT MINERALS REPORT For the reporting period from January 1, 2021 through December 31, 2021 This Conflict Minerals Report (this “Report”) of Lam Research Corporation (including its consolidated subsidiaries, the “Company”, “Lam”, “we” or “our”) has been prepared pursuant to Rule 13p-1 and Form SD promulgate

May 11, 2022 EX-3.1

Bylaws of the Registrant, as amended and restated, dated May 11, 2022 which is incorporated by reference to Exhibit 3.1 to the Registrant’s Current Report on Form 8-K filed on May 11, 2022 (SEC File No. 000-12933).

Exhibit 3.1 AMENDED AND RESTATED BYLAWS OF LAM RESEARCH CORPORATION Amended and restated as of May 11, 2022 ARTICLE I CORPORATE OFFICES 1.1REGISTERED OFFICE The registered office of the corporation shall be in the City of Wilmington, County of New Castle, State of Delaware. The name of the registered agent of the corporation at such location is The Corporation Trust Company. 1.2OTHER OFFICES The b

May 11, 2022 EX-99.1

Lam Research Corporation Announces $5 Billion Share Repurchase Authorization and Declares Quarterly Dividend

Exhibit 99.1 FOR IMMEDIATE RELEASE Lam Research Corporation Announces $5 Billion Share Repurchase Authorization and Declares Quarterly Dividend FREMONT, Calif. - (GLOBE NEWSWIRE) ? May 11, 2022 - Lam Research Corporation (Nasdaq: LRCX) today announced that its Board of Directors approved a $5 billion share repurchase authorization and a quarterly dividend of $1.50 per share of common stock. The co

May 11, 2022 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Financial Statements and Exhibits, Other Events

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K Current Report Pursuant to Section 13 or 15(d) o f the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 11, 2022 LAM RESEARCH CORPORATION (Exact name of registrant as specified in its charter) Delaware 0-12933 94-2634797 (State or Other Jurisdiction of Incorporati

May 11, 2022 EX-10.1

Lam Research Corporation Senior Executive Transition Policy which is incorporated by reference to Exhibit 10.1 to the Registrant’s Current report on Form 8-K filed on May 11, 2022 (SEC File No. 000-12933)

Exhibit 10.1 Lam Research Corporation Senior Executive Transition Policy Purpose To memorialize a policy (the ?Policy?) to provide an opportunity for eligible executives of Lam Research Corporation (the ?Company?) to work a mutually agreed reduced schedule in anticipation of subsequent retirement with the aim of promoting more orderly transitions of senior executives in such circumstances (a ?Tran

April 26, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 27, 2022 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 0-12933 LAM RESEARCH

April 20, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K Current Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): April 20, 2022 LAM RESEARCH CORPORATION (Exact name of registrant as specified in its charter) Delaware 0-12933 94-2634797 (State or Other Jurisdiction of Incorporat

April 20, 2022 EX-99.1

Key Financial Data for the Quarters Ended March 27, 2022 and December 26, 2021 (in thousands, except per-share data, percentages, and basis points) U.S. GAAP March 2022 December 2021 Change Q/Q Revenue $ 4,060,416 $ 4,226,604 - 4% Gross margin as per

Exhibit 99.1 FOR IMMEDIATE RELEASE Lam Research Corporation Reports Financial Results for the Quarter Ended March 27, 2022 FREMONT, Calif., April 20, 2022 - Lam Research Corporation (the "Company," "Lam," "Lam Research") today announced financial results for the quarter ended March 27, 2022 (the ?March 2022 quarter?). Highlights for the March 2022 quarter were as follows: ?Revenue of $4.06 billion

February 10, 2022 SC 13G/A

LRCX / Lam Research Corporation / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 10)* Name of issuer: Lam Research Corp. Title of Class of Securities: Common Stock CUSIP Number: 512807108 Date of Event Which Requires Filing of this Statement: December 31, 2021 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ?

February 1, 2022 EX-10.1

Non-employee Director Compensation Program

Ex 10.1 Lam Research Corporation Non-Employee Director Compensation Program Effective November 8, 2021 Objective To target and pay the non-employee members of the board of directors (the ?Board?) of Lam Research Corporation (the ?Company?) at the median of the Company?s peer group, as measured every other year. Annual Cash Retainers For service as a director beginning with calendar year 2022, dire

February 1, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended December 26, 2021 or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 0-12933 LAM RESEA

January 26, 2022 EX-99.1

Key Financial Data for the Quarters Ended December 26, 2021 and September 26, 2021 (in thousands, except per-share data, percentages, and basis points) U.S. GAAP December 2021 September 2021 Change Q/Q Revenue $ 4,226,604 $ 4,304,465 - 2% Gross margi

Exhibit 99.1 FOR IMMEDIATE RELEASE Lam Research Corporation Reports Financial Results for the Quarter Ended December 26, 2021 FREMONT, Calif., January 26, 2022 - Lam Research Corporation (the "Company," "Lam," "Lam Research") today announced financial results for the quarter ended December 26, 2021 (the ?December 2021 quarter?). Highlights for the December 2021 quarter were as follows: ?Revenue of

January 26, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K Current Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): January 26, 2022 LAM RESEARCH CORPORATION (Exact name of registrant as specified in its charter) Delaware 0-12933 94-2634797 (State or Other Jurisdiction of Incorpor

November 16, 2021 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K Current Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): November 9, 2021 LAM RESEARCH CORPORATION (Exact name of registrant as specified in its charter) Delaware 0-12933 94-2634797 (State or Other Jurisdiction of Incorpor

November 12, 2021 8-K

Submission of Matters to a Vote of Security Holders

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K Current Report Pursuant to Section 13 or 15(d) o f the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): November 08, 2021 LAM RESEARCH CORPORATION (Exact name of registrant as specified in its charter) Delaware 0-12933 94-2634797 (State or Other Jurisdiction of Incorp

October 26, 2021 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 26, 2021 or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 0-12933 LAM RESE

October 20, 2021 EX-99.1

Key Financial Data for the Quarters Ended September 26, 2021 and June 27, 2021 (in thousands, except per-share data, percentages, and basis points) U.S. GAAP September 2021 June 2021 Change Q/Q Revenue $ 4,304,465 $ 4,145,179 + 4% Gross margin as per

Exhibit 99.1 FOR IMMEDIATE RELEASE Lam Research Corporation Reports Financial Results for the Quarter Ended September 26, 2021 FREMONT, Calif., October 20, 2021 - Lam Research Corporation (the "Company," "Lam," "Lam Research") today announced financial results for the quarter ended September 26, 2021 (the ?September 2021 quarter?). Highlights for the September 2021 quarter were as follows: ?Revenu

October 20, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K Current Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): October 20, 2021 LAM RESEARCH CORPORATION (Exact name of registrant as specified in its charter) Delaware 0-12933 94-2634797 (State or Other Jurisdiction of Incorpor

September 28, 2021 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ? SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 ? Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? ?

September 28, 2021 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ? SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 ? Filed by the Registrant x Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Us

August 17, 2021 EX-10.35

Form of Restricted Stock Unit Agreement (International Participants) - 2015 Stock Incentive Plan which is incorporated by reference to Exhibit 10.35 to the Registrant's Annual Report on Form 10-K filed on August 17, 2021 (SEC File No. 000-12933).

Ex 10.35 LAM RESEARCH CORPORATION 2015 Stock Incentive Plan Restricted Stock Unit Award Agreement (International Participants) Pursuant to the terms of the 2015 Stock Incentive Plan (the ?Plan?) Lam Research Corporation, a Delaware corporation (the ?Company?), hereby awards restricted stock units (?RSUs?) to the Grantee (the ?Participant?) on the terms and conditions as set forth in this Restricte

August 17, 2021 EX-10.31

Form of Market-Based Performance Restricted Stock Unit Award Agreement (U.S. Participants) - 2015 Stock Incentive Plan which is incorporated by reference to Exhibit 10.31 to the Registrant's Annual Report on Form 10-K filed on August 17, 2021 (SEC File No. 000-12933).

Ex 10.31 LAM RESEARCH CORPORATION 2015 Stock Incentive Plan Market-Based Performance Restricted Stock Unit Award Agreement (U.S. Participants) Pursuant to the terms of the 2015 Stock Incentive Plan (the ?Plan?) Lam Research Corporation, a Delaware corporation (the ?Company?), hereby awards market-based performance restricted stock units (?mPRSUs?) to the Grantee (the ?Participant?) on the terms an

August 17, 2021 EX-10.37

Form of Market-Based Performance Restricted Stock Unit Award Agreement (International Participants) - 2015 Stock Incentive Plan which is incorporated by reference to Exhibit 10.37 to the Registrant's Annual Report on Form 10-K filed on August 17, 2021 (SEC File No. 000-12933).

Ex 10.37 LAM RESEARCH CORPORATION 2015 Stock Incentive Plan Market-Based Performance Restricted Stock Unit Award Agreement (International Participants) Pursuant to the terms of the 2015 Stock Incentive Plan (the ?Plan?) Lam Research Corporation, a Delaware corporation (the ?Company?), hereby awards market-based performance restricted stock units (?mPRSUs?) to the Grantee (the ?Participant?) on the

August 17, 2021 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended June 27, 2021 ☐ TRANSITION REPORT PURSUANT T

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended June 27, 2021 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to . Commission file number: 0-12933

August 17, 2021 EX-10.36

Form of Market-Based Performance Restricted Stock Unit Award Agreement (U.S. Participants) - 2015 Stock Incentive Plan which is incorporated by reference to Exhibit 10.36 to the Registrant's Annual Report on Form 10-K filed on August 17, 2021 (SEC File No. 000-12933).

Ex 10.36 LAM RESEARCH CORPORATION 2015 Stock Incentive Plan Market-Based Performance Restricted Stock Unit Award Agreement (U.S. Participants) Pursuant to the terms of the 2015 Stock Incentive Plan (the ?Plan?) Lam Research Corporation, a Delaware corporation (the ?Company?), hereby awards market-based performance restricted stock units (?mPRSUs?) to the Grantee (the ?Participant?) on the terms an

August 17, 2021 EX-21

Subsidiaries of the Registrant.

Exhibit 21 SUBSIDIARIES OF THE REGISTRANT* SUBSIDIARY (as of August 17, 2021) STATE OR OTHER JURISDICTION OF OPERATION Lam Research AG Austria Lam Research Management GmbH Austria Lam Research Belgium BV Belgium Novellus Systems, Inc.

August 17, 2021 EX-10.33

Form of Option Award Agreement (International Participants) - 2015 Stock Incentive Plan which is incorporated by reference to Exhibit 10.33 to the Registrant's Annual Report on Form 10-K filed on August 17, 2021 (SEC File No. 000-12933).

Ex 10.33 LAM RESEARCH CORPORATION 2015 Stock Incentive Plan Nonstatutory Stock Option Award Agreement (International Participants) Pursuant to the terms of the 2015 Stock Incentive Plan (the ?Plan?) Lam Research Corporation, a Delaware corporation (the ?Company?), hereby grants Options to the Grantee (the ?Optionee?) on the terms and conditions as set forth in this Nonstatutory Stock Option Award

August 17, 2021 EX-10.29

Form of Option Award Agreement (U.S. Participants) - 2015 Stock Incentive Plan which is incorporated by reference to Exhibit 10.29 to the Registrant's Annual Report on Form 10-K filed on August 17, 2021 (SEC File No. 000-12933).

Exhibit 10.29 LAM RESEARCH CORPORATION 2015 Stock Incentive Plan Nonstatutory Stock Option Award Agreement (U.S. Participants) Pursuant to the terms of the 2015 Stock Incentive Plan (the ?Plan?) Lam Research Corporation, a Delaware corporation (the ?Company?), hereby grants Options to the Grantee (the ?Optionee?) on the terms and conditions as set forth in this Nonstatutory Stock Option Award Agre

August 17, 2021 EX-10.34

Form of Restricted Stock Unit Agreement (U.S. Participants) - 2015 Stock Incentive Plan which is incorporated by reference to Exhibit 10.34 to the Registrant's Annual Report on Form 10-K filed on August 17, 2021 (SEC File No. 000-12933).

Ex 10.34 LAM RESEARCH CORPORATION 2015 Stock Incentive Plan Restricted Stock Unit Award Agreement (U.S. Participants) Pursuant to the terms of the 2015 Stock Incentive Plan (the ?Plan?) Lam Research Corporation, a Delaware corporation (the ?Company?), hereby awards restricted stock units (?RSUs?) to the Grantee (the ?Participant) on the terms and conditions as set forth in this Restricted Stock Un

August 17, 2021 EX-10.32

Form of Option Award Agreement (U.S. Participants) - 2015 Stock Incentive Plan which is incorporated by reference to Exhibit 10.32 to the Registrant's Annual Report on Form 10-K filed on August 17, 2021 (SEC File No. 000-12933).

Ex 10.32 LAM RESEARCH CORPORATION 2015 Stock Incentive Plan Nonstatutory Stock Option Award Agreement (U.S. Participants) Pursuant to the terms of the 2015 Stock Incentive Plan (the ?Plan?) Lam Research Corporation, a Delaware corporation (the ?Company?), hereby grants Options to the Grantee (the ?Optionee?) on the terms and conditions as set forth in this Nonstatutory Stock Option Award Agreement

August 17, 2021 EX-10.30

Form of Restricted Stock Unit Agreement (U.S. Participants) - 2015 Stock Incentive Plan which is incorporated by reference to Exhibit 10.30 to the Registrant's Annual Report on Form 10-K filed on August 17, 2021 (SEC File No. 000-12933).

Ex 10.30 LAM RESEARCH CORPORATION 2015 Stock Incentive Plan Restricted Stock Unit Award Agreement (U.S. Participants) Pursuant to the terms of the 2015 Stock Incentive Plan (the ?Plan?) Lam Research Corporation, a Delaware corporation (the ?Company?), hereby awards restricted stock units (?RSUs?) to the Grantee (the ?Participant) on the terms and conditions as set forth in this Restricted Stock Un

July 28, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K Current Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): July 28, 2021 LAM RESEARCH CORPORATION (Exact name of registrant as specified in its charter) Delaware 0-12933 94-2634797 (State or Other Jurisdiction of Incorporati

July 28, 2021 EX-99.1

Key Financial Data for the Quarters Ended June 27, 2021 and March 28, 2021 (in thousands, except per-share data, percentages, and basis points) U.S. GAAP June 2021 March 2021 Change Q/Q Revenue $ 4,145,179 $ 3,847,654 +8% Gross margin as percentage o

Exhibit 99.1 FOR IMMEDIATE RELEASE Lam Research Corporation Reports Financial Results for the Quarter Ended June 27, 2021 FREMONT, Calif., July 28, 2021 - Lam Research Corporation (the "Company," "Lam," "Lam Research") today announced financial results for the quarter ended June 27, 2021 (the ?June 2021 quarter?). Highlights for the June 2021 quarter were as follows: ?Revenue of $4.15 billion. ?U.

June 22, 2021 11-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K

11-K 1 lrcx11-kxdocumentx2020.htm 11-K Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K (Mark One) x ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2020 OR ¨ TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Com

June 21, 2021 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K Current Report Pursuant to Section 13 or 15(d) o f the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): June 17, 2021 LAM RESEARCH CORPORATION (Exact name of registrant as specified in its charter) Delaware 0-12933 94-2634797 (State or Other Jurisdiction of Incorporat

June 21, 2021 EX-10.1

, 2021, among Lam Research Corporation, JPMorgan Chase Bank, N.A., as administrative agent, and the other agents and lenders listed therein.

Exhibit 10.1 EXECUTION COPY SECOND AMENDED AND RESTATED CREDIT AGREEMENT dated as of June 17, 2021 among LAM RESEARCH CORPORATION the Lenders Party Hereto JPMORGAN CHASE BANK, N.A., as Administrative Agent GOLDMAN SACHS BANK USA, BARCLAYS BANK PLC, CITIBANK, N.A., BNP PARIBAS and BANK OF AMERICA, N.A., as Syndication Agents DEUTSCHE BANK SECURITIES INC., MIZUHO BANK, LTD., MUFG BANK, LTD. and TRUI

June 1, 2021 SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT LAM RESEARCH CORPORATION (Exact name of registrant as specified in its charter) Delaware 0-12933 94-2634797 (State or Other Jurisdiction of

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT LAM RESEARCH CORPORATION (Exact name of registrant as specified in its charter) Delaware 0-12933 94-2634797 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification Number) 4650 Cushing Parkway Fremont, California 94538 (Address of principal exec

June 1, 2021 EX-1.01

Conflict Minerals Report of Lam Research Corporation.

EX-1.01 2 ex101conflictmineralsrepor.htm EX-1.01 Exhibit 1.01 LAM RESEARCH CORPORATION CONFLICT MINERALS REPORT For the reporting period from January 1, 2020 through December 31, 2020 This Conflict Minerals Report (this “Report”) of Lam Research Corporation (including its consolidated subsidiaries, the “Company”, “Lam”, “we” or “our”) has been prepared pursuant to Rule 13p-1 and Form SD promulgate

April 28, 2021 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 28, 2021 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 0-12933 LAM RESEARCH

April 21, 2021 EX-99.1

Key Financial Data for the Quarters Ended March 28, 2021 and December 27, 2020 (in thousands, except per-share data, percentages, and basis points) U.S. GAAP March 2021 December 2020 Change Q/Q Revenue $ 3,847,654 $ 3,456,237 + 11% Gross margin as pe

Exhibit 99.1 FOR IMMEDIATE RELEASE Lam Research Corporation Reports Financial Results for the Quarter Ended March 28, 2021 FREMONT, Calif., April 21, 2021 - Lam Research Corporation (the "Company," "Lam," "Lam Research") today announced financial results for the quarter ended March 28, 2021 (the ?March 2021 quarter?). Highlights for the March 2021 quarter were as follows: ?Revenue of $3.85 billion

April 21, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K Current Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): April 21, 2021 LAM RESEARCH CORPORATION (Exact name of registrant as specified in its charter) Delaware 0-12933 94-2634797 (State or Other Jurisdiction of Incorporat

March 19, 2021 EX-99.1

NOTICE TO HOLDERS OF ANY AND ALL OUTSTANDING 2.625% SENIOR CONVERTIBLE NOTES DUE 2041 NOVELLUS SYSTEMS, INC. WITH CUSIP NUMBER 670008 AD3

NOTICE TO HOLDERS OF ANY AND ALL OUTSTANDING 2.625% SENIOR CONVERTIBLE NOTES DUE 2041 OF NOVELLUS SYSTEMS, INC. WITH CUSIP NUMBER 670008 AD3 Pursuant to Section 8.03(l) of the Indenture, dated as of May 10, 2011 (the “Indenture”) between Novellus Systems, Inc., a California corporation, as Issuer (the “Company”), and The Bank of New York Mellon Trust Company, N.A., as Trustee (the “Trustee”), as s

March 19, 2021 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K Current Report Pursuant to Section 13 or 15(d) o f the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): March 19, 2021 LAM RESEARCH CORPORATION (Exact name of registrant as specified in its charter) Delaware 0-12933 94-2634797 (State or Other Jurisdiction of Incorpora

February 12, 2021 EX-99.I

to Schedule 13G

EX-99.I Exhibit I to Schedule 13G Ameriprise Financial, Inc., a Delaware Corporation, is a parent holding company. The classification and identity of the relevant subsidiaries is as follows: Investment Adviser – Columbia Management Investment Advisers, LLC is an investment adviser registered under section 203 of the Investment Advisers Act of 1940.

February 12, 2021 SC 13G/A

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Amendment #8 Under the Securities and Exchange Act of 1934 Lam Research Corp (Name of Issuer) Common Stock (Title of Class of Securities) (CUSIP Number) December 31, 2020 (Date of

SC 13G/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Amendment #8 Under the Securities and Exchange Act of 1934 Lam Research Corp (Name of Issuer) Common Stock (Title of Class of Securities) 512807108 (CUSIP Number) December 31, 2020 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is

February 12, 2021 EX-99.II

to Schedule 13G Joint Filing Agreement

EX-99.II Exhibit II to Schedule 13G Joint Filing Agreement The undersigned persons agree and consent to the joint filing on their behalf of this Schedule 13G dated February 12, 2021 in connection with their beneficial ownership of Lam Research Corp. Columbia Management Investment Advisers, LLC authorizes Ameriprise Financial, Inc. to execute the Schedule 13G to which this Exhibit is attached and m

February 10, 2021 SC 13G/A

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 9)*

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 9)* Name of issuer: Lam Research Corp. Title of Class of Securities: Common Stock CUSIP Number: 512807108 Date of Event Which Requires Filing of this Statement: December 31, 2020 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ☒ 

February 2, 2021 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended December 27, 2020 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 0-12933 LAM RESEA

January 27, 2021 EX-99.1

Key Financial Data for the Quarters Ended December 27, 2020 and September 27, 2020 (in thousands, except per-share data, percentages, and basis points) U.S. GAAP December 2020 September 2020 Change Q/Q Revenue $ 3,456,237 $ 3,177,080 + 9% Gross margi

Exhibit 99.1 FOR IMMEDIATE RELEASE Lam Research Corporation Reports Financial Results for the Quarter Ended December 27, 2020 FREMONT, Calif., January 27, 2021 - Lam Research Corporation (the "Company," "Lam," "Lam Research") today announced financial results for the quarter ended December 27, 2020 (the “December 2020 quarter”). Highlights for the December 2020 quarter were as follows: •Revenue of

January 27, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K Current Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): January 27, 2021 LAM RESEARCH CORPORATION (Exact name of registrant as specified in its charter) Delaware 0-12933 94-2634797 (State or Other Jurisdiction of Incorpor

January 15, 2021 CORRESP

-

January 15, 2021 VIA EDGAR Securities and Exchange Commission Division of Corporation Finance Office of Technology 100 F Street, N.

December 28, 2020 EX-10.1

Executive Severance Policy

EX-10.1 Exhibit 10.1 Executive Severance Policy EXECUTIVE SEVERANCE POLICY Effective January 1, 2021 This Executive Severance Policy (this “Policy”) is adopted by the Board of Directors (the “Board”) of Lam Research Corporation, a Delaware corporation (the “Company”) with an effective date of January 1, 2021. It is intended to comply with ERISA and with all other applicable laws. I. DEFINITIONS Th

December 28, 2020 EX-10.2

Executive Change in Control Policy which is incorporated by reference to Exhibit 10.2 to the Registrant’s Current Report on Form 8-K filed on December 28, 2020 (SEC File No. 000-12933).

EX-10.2 Exhibit 10.2 Executive Change in Control Policy EXECUTIVE CHANGE IN CONTROL POLICY Effective January 1, 2021 This Executive Change in Control Policy (this “Policy”) is adopted by the Board of Directors (the “Board”) of Lam Research Corporation, a Delaware corporation (the “Company”) with an effective date of January 1, 2021. It is intended to comply with ERISA and with all other applicable

December 28, 2020 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits - 8-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K Current Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): December 22, 2020 LAM RESEARCH CORPORATION (Exact name of registrant as specified in its charter) Delaware 0-12933 94-2634797 (State or Other Jurisdiction of Incorpo

December 11, 2020 EX-99.1

NOTICE TO HOLDERS OF ANY AND ALL OUTSTANDING 2.625% SENIOR CONVERTIBLE NOTES DUE 2041 NOVELLUS SYSTEMS, INC. WITH CUSIP NUMBER 670008 AD3

NOTICE TO HOLDERS OF ANY AND ALL OUTSTANDING 2.625% SENIOR CONVERTIBLE NOTES DUE 2041 OF NOVELLUS SYSTEMS, INC. WITH CUSIP NUMBER 670008 AD3 Pursuant to Section 8.03(l) of the Indenture, dated as of May 10, 2011 (the “Indenture”) between Novellus Systems, Inc., a California corporation, as Issuer (the “Company”), and The Bank of New York Mellon Trust Company, N.A., as Trustee (the “Trustee”), as s

December 11, 2020 8-K

Regulation FD Disclosure, Financial Statements and Exhibits - 8-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K Current Report Pursuant to Section 13 or 15(d) o f the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): December 11, 2020 LAM RESEARCH CORPORATION (Exact name of registrant as specified in its charter) Delaware 0-12933 94-2634797 (State or Other Jurisdiction of Incorp

November 5, 2020 8-K

Financial Statements and Exhibits, Other Events, Submission of Matters to a Vote of Security Holders - 8-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K Current Report Pursuant to Section 13 or 15(d) o f the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): November 3, 2020 LAM RESEARCH CORPORATION (Exact name of registrant as specified in its charter) Delaware 0-12933 94-2634797 (State or Other Jurisdiction of Incorpo

November 5, 2020 EX-99.1

Lam Research Corporation Announces $5 Billion Share Repurchase Authorization and Declares Quarterly Dividend

FOR IMMEDIATE RELEASE Lam Research Corporation Announces $5 Billion Share Repurchase Authorization and Declares Quarterly Dividend FREMONT, CA - (GLOBE NEWSWIRE) – November 5, 2020 - Lam Research Corporation (Nasdaq: LRCX) today announced that its Board of Directors approved a $5 billion share repurchase authorization and a quarterly dividend of $1.

October 27, 2020 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 27, 2020 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 0-12933 LAM RESE

October 21, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition - 8-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K Current Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): October 21, 2020 LAM RESEARCH CORPORATION (Exact name of registrant as specified in its charter) Delaware 0-12933 94-2634797 (State or Other Jurisdiction of Incorpor

October 21, 2020 EX-99.1

Key Financial Data for the Quarters Ended September 27, 2020 and June 28, 2020 (in thousands, except per-share data, percentages, and basis points) U.S. GAAP September 2020 June 2020 Change Q/Q Revenue $ 3,177,080 $ 2,791,864 + 14% Gross margin as pe

Exhibit 99.1 FOR IMMEDIATE RELEASE Lam Research Corporation Reports Financial Results for the Quarter Ended September 27, 2020 FREMONT, Calif., October 21, 2020 - Lam Research Corporation (the "Company," "Lam," "Lam Research") today announced financial results for the quarter ended September 27, 2020 (the “September 2020 quarter”). Highlights for the September 2020 quarter were as follows: •Revenu

October 15, 2020 DEFA14A

- DEFA14A

DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☑ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, fo

October 2, 2020 8-K

Regulation FD Disclosure, Financial Statements and Exhibits - 8-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K Current Report Pursuant to Section 13 or 15(d) o f the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): October 2, 2020 LAM RESEARCH CORPORATION (Exact name of registrant as specified in its charter) Delaware 0-12933 94-2634797 (State or Other Jurisdiction of Incorpor

October 2, 2020 EX-99.1

NOTICE TO HOLDERS OF ANY AND ALL OUTSTANDING 2.625% SENIOR CONVERTIBLE NOTES DUE 2041 NOVELLUS SYSTEMS, INC. WITH CUSIP NUMBER 670008 AD3

NOTICE TO HOLDERS OF ANY AND ALL OUTSTANDING 2.625% SENIOR CONVERTIBLE NOTES DUE 2041 OF NOVELLUS SYSTEMS, INC. WITH CUSIP NUMBER 670008 AD3 Pursuant to Section 8.03(l) of the Indenture, dated as of May 10, 2011 (the “Indenture”) between Novellus Systems, Inc., a California corporation, as Issuer (the “Company”), and The Bank of New York Mellon Trust Company, N.A., as Trustee (the “Trustee”), as s

September 23, 2020 DEF 14A

- DEF 14A

DEF 14A Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

September 23, 2020 DEFA14A

- DEFA14A

DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☑ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, fo

September 14, 2020 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers - 8-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K Current Report Pursuant to Section 13 or 15(d) o f the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): September 10, 2020 LAM RESEARCH CORPORATION (Exact name of registrant as specified in its charter) Delaware 0-12933 94-2634797 (State or Other Jurisdiction of Incor

September 8, 2020 EX-10.1

Employment Agreement with Patrick J. Lord, dated September 8, 2020 which is incorporated by reference to Exhibit 10.1 to the Registrant’s Current Report on Form 8-K filed on September 8, 2020 (SEC File No. 000-12933).

Patrick J. Lord Employment Agreement EMPLOYMENT AGREEMENT Effective September 8, 2020 This Employment Agreement (the “Agreement”) is made and entered into effective September 8, 2020 (the “Effective Date”) between Patrick J. Lord (the “Executive”) and Lam Research Corporation, a Delaware corporation (the “Company”). R E C I T A L S A.The Executive and the Company previously entered into a Change i

September 8, 2020 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits - 8-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K Current Report Pursuant to Section 13 or 15(d) o f the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): September 8, 2020 LAM RESEARCH CORPORATION (Exact name of registrant as specified in its charter) Delaware 0-12933 94-2634797 (State or Other Jurisdiction of Incorp

August 18, 2020 EX-21

Subsidiaries of the Registrant.

Exhibit 21 SUBSIDIARIES OF THE REGISTRANT* SUBSIDIARY (as of August 18, 2020) STATE OR OTHER JURISDICTION OF OPERATION Lam Research AG Austria Lam Research Management GmbH Austria Lam Research Belgium BVBA Belgium Novellus Systems, Inc.

August 18, 2020 10-K

Annual Report - 10-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended June 28, 2020 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to . Commission file number: 0-12933

August 18, 2020 EX-4.8

Description of Common Stock, which is incorporated by reference to Exhibit 4.8 to the Registrant’s Annual Report on Form 10-K filed on August 18, 2020 (SEC File No. 000-12933).

Exhibit 4.8 DESCRIPTION OF COMMON STOCK The following summary description sets forth some of the general terms and provisions of the common stock. Because this is a summary description, it does not contain all of the information that may be important to you. For a more detailed description of the common stock, you should refer to the provisions of our Restated Certificate of Incorporation and Amen

July 29, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K Current Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): July 29, 2020 LAM RESEARCH CORPORATION (Exact name of registrant as specified in its charter) Delaware 0-12933 94-2634797 (State or Other Jurisdiction of Incorporati

July 29, 2020 EX-99.1

Key Financial Data for the Quarters Ended June 28, 2020 and March 29, 2020 (in thousands, except per-share data, percentages, and basis points) U.S. GAAP June 2020 March 2020 Change Q/Q Revenue $ 2,791,864 $ 2,503,625 +12% Gross margin as percentage

Exhibit 99.1 FOR IMMEDIATE RELEASE Lam Research Corporation Reports Financial Results for the Quarter Ended June 28, 2020 FREMONT, Calif., July 29, 2020 - Lam Research Corporation (the "Company," "Lam," "Lam Research") today announced financial results for the quarter ended June 28, 2020 (the “June 2020 quarter”). Highlights for the June 2020 quarter were as follows: • Revenue of $2.79 billion. •

June 19, 2020 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K Current Report Pursuant to Section 13 or 15(d) o f the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): June 19, 2020 LAM RESEARCH CORPORATION (Exact name of registrant as specified in its charter) Delaware 0-12933 94-2634797 (State or Other Jurisdiction of Incorporat

June 19, 2020 EX-99.1

NOTICE TO HOLDERS OF ANY AND ALL OUTSTANDING 2.625% SENIOR CONVERTIBLE NOTES DUE 2041 NOVELLUS SYSTEMS, INC. WITH CUSIP NUMBER 670008 AD3

NOTICE TO HOLDERS OF ANY AND ALL OUTSTANDING 2.625% SENIOR CONVERTIBLE NOTES DUE 2041 OF NOVELLUS SYSTEMS, INC. WITH CUSIP NUMBER 670008 AD3 Pursuant to Section 8.03(l) of the Indenture, dated as of May 10, 2011 (the “Indenture”) between Novellus Systems, Inc., a California corporation, as Issuer (the “Company”), and The Bank of New York Mellon Trust Company, N.A., as Trustee (the “Trustee”), as s

June 17, 2020 11-K

- 11-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K (Mark One) x ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2019 OR ¨ TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 0-12933 A. Full tit

June 1, 2020 SD

- LAM RESEARCH CALENDAR YEAR 2019 FORM SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT LAM RESEARCH CORPORATION (Exact name of registrant as specified in its charter) Delaware 0-12933 94-2634797 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification Number) 4650 Cushing Parkway Fremont, California 94538 (Address of principal exec

June 1, 2020 EX-1.01

Conflict Minerals Report of Lam Research Corporation.

EX-1.01 2 ex101confictmineralsreport.htm EXHIBIT 1.01 CONFLICT MINERALS REPORT Exhibit 1.01 LAM RESEARCH CORPORATION CONFLICT MINERALS REPORT For the reporting period from January 1, 2019 through December 31, 2019 This Conflict Minerals Report (this “Report”) of Lam Research Corporation (including its consolidated subsidiaries, the “Company”, “Lam”, “we” or “our”) has been prepared pursuant to Rul

May 18, 2020 8-K

Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K Current Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 12, 2020 LAM RESEARCH CORPORATION (Exact name of registrant as specified in its charter) Delaware 0-12933 94-2634797 (State or Other Jurisdiction of Incorporation) (Commission Fil

May 18, 2020 EX-3.2

Bylaws of the Registrant, as amended and restated, dated May 12, 2020 which is incorporated by reference to Exhibit 3.2 to the Registrant’s Current Report on Form 8-K filed on May 18, 2020 (SEC File No. 000-12933).

Exhibit 3.2 AMENDED AND RESTATED BYLAWS OF LAM RESEARCH CORPORATION Amended and restated as of May 12, 2020 ARTICLE I CORPORATE OFFICES 1.1 REGISTERED OFFICE The registered office of the corporation shall be in the City of Wilmington, County of New Castle, State of Delaware. The name of the registered agent of the corporation at such location is The Corporation Trust Company. 1.2 OTHER OFFICES The

May 5, 2020 EX-1.1

Underwriting Agreement, dated April 30, 2020, between Lam Research Corporation and BofA Securities, Inc., Citigroup Global Markets Inc., Goldman Sachs & Co. LLC and J.P. Morgan Securities LLC, as representatives of the underwriters named therein

EX-1.1 Exhibit 1.1 LAM RESEARCH CORPORATION $750,000,000 1.900% Senior Notes due 2030 $750,000,000 2.875% Senior Notes due 2050 $500,000,000 3.125% Senior Notes due 2060 Underwriting Agreement April 30, 2020 BofA Securities, Inc. Citigroup Global Markets Inc. Goldman Sachs & Co. LLC J.P. Morgan Securities LLC As Representatives of the several Underwriters listed in Schedule 1 hereto c/o BofA Secur

May 5, 2020 EX-4.2

Fourth Supplemental Indenture, dated as of May 5, 2020 by and between Lam Research Corporation and the Bank of New York Mellon Trust Company, N.A. as trustee which is incorporated by reference to Exhibit 4.2 to the Registrant’s Current Report on Form 8-K filed on May 5, 2020 (SEC File No. 000-12933).

EX-4.2 Exhibit 4.2 LAM RESEARCH CORPORATION $2,000,000,000 $750,000,000 1.900% SENIOR NOTES DUE 2030 $750,000,000 2.875% SENIOR NOTES DUE 2050 $500,000,000 3.125% SENIOR NOTES DUE 2060 FOURTH SUPPLEMENTAL INDENTURE Dated as of May 5, 2020 To INDENTURE Dated as of February 13, 2015 THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A. Trustee TABLE OF CONTENTS PAGE ARTICLE 1 DEFINITIONS AND INCORPORATION

May 5, 2020 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant, Other Events

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported): May 5, 2020 LAM RESEARCH CORPORATION (Exact name of registrant as specified in its charter) Delaware 0-12933 94-2634797 (State or Other Jurisdiction of Incorporation

May 1, 2020 424B5

CALCULATION OF REGISTRATION FEE Title of each Class of Securities to be Registered Amount to be Registered Proposed Maximum Offering Price Proposed Maximum Aggregate Offering Price Amount of Registration Fee (1) 1.900% Senior Notes due 2030 $750,000,

424B5 Table of Contents Filed Pursuant to Rule 424(b)(5) Registration No. 333-229762 CALCULATION OF REGISTRATION FEE Title of each Class of Securities to be Registered Amount to be Registered Proposed Maximum Offering Price Proposed Maximum Aggregate Offering Price Amount of Registration Fee (1) 1.900% Senior Notes due 2030 $750,000,000 99.670% $747,525,000 $97,029 2.875% Senior Notes due 2050 $75

April 30, 2020 8-K

Other Events

Table of Contents Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.

April 30, 2020 FWP

LAM RESEARCH CORPORATION Pricing Term Sheet $750,000,000 1.900% Senior Notes due 2030 $750,000,000 2.875% Senior Notes due 2050 $500,000,000 3.125% Senior Notes due 2060 Issuer: Lam Research Corporation Title: 1.900% Senior Notes due 2030 (the “2030

FWP 1 d907884dfwp.htm FWP Filed pursuant to Rule 433 Registration No. 333-229762 Issuer Free Writing Prospectus dated April 30, 2020 Relating to Preliminary Prospectus Supplement dated April 30, 2020 LAM RESEARCH CORPORATION Pricing Term Sheet $750,000,000 1.900% Senior Notes due 2030 $750,000,000 2.875% Senior Notes due 2050 $500,000,000 3.125% Senior Notes due 2060 Issuer: Lam Research Corporati

April 30, 2020 424B5

SUBJECT TO COMPLETION PRELIMINARY PROSPECTUS SUPPLEMENT DATED APRIL 30, 2020

424B5 1 d909801d424b5.htm 424B5 Table of Contents Filed Pursuant to Rule 424(b)(5) Registration No. 333-229762 The information in this preliminary prospectus supplement and accompanying base prospectus is not complete and may be changed. This preliminary prospectus supplement and the accompanying base prospectus are not an offer to sell these securities, and we are not soliciting an offer to buy t

April 28, 2020 EX-10.2

Form of Market-Based Performance Restricted Stock Unit Award Agreement (International Participants) - 2015 Stock Incentive Plan

Exhibit 10.2 LAM RESEARCH CORPORATION 2015 Stock Incentive Plan Market-Based Performance Restricted Stock Unit Award Agreement (International Participants) Pursuant to the terms of the 2015 Stock Incentive Plan (the “Plan”) Lam Research Corporation, a Delaware corporation (the “Company”), hereby awards market-based performance restricted stock units (“mPRSUs”) to the Grantee (the “Participant”) on

April 28, 2020 10-Q

Quarterly Report - 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 29, 2020 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 0-

April 28, 2020 EX-10.1

Form of Market-Based Performance Restricted Stock Unit Award Agreement (U.S. Participants) - 2015 Stock Incentive Plan which is incorporated by reference to Exhibit 10.1 to the Registrant’s Quarterly Report on Form 10-Q filed on April 28, 2020 (SEC File No. 000-12933).

Exhibit 10.1 LAM RESEARCH CORPORATION 2015 Stock Incentive Plan Market-Based Performance Restricted Stock Unit Award Agreement (U.S. Participants) Pursuant to the terms of the 2015 Stock Incentive Plan (the “Plan”) Lam Research Corporation, a Delaware corporation (the “Company”), hereby awards market-based performance restricted stock units (“mPRSUs”) to the Grantee (the “Participant”) on the term

April 22, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition, Other Events

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K Current Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): April 22, 2020 LAM RESEARCH CORPORATION (Exact name of registrant as specified in its charter) Delaware 0-12933 94-2634797 (State or Other Jurisdiction of Incorporat

April 22, 2020 EX-99.1

Key Financial Data for the Quarters Ended March 29, 2020 and December 29, 2019 (in thousands, except per-share data, percentages, and basis points) U.S. GAAP March 2020 December 2019 Change Q/Q Revenue $ 2,503,625 $ 2,583,501 - 3% Gross margin as per

Exhibit 99.1 FOR IMMEDIATE RELEASE Lam Research Corporation Reports Financial Results for the Quarter Ended March 29, 2020 FREMONT, Calif., April 22, 2020 - Lam Research Corporation (the "Company," "Lam," "Lam Research") today announced financial results for the quarter ended March 29, 2020 (the “March 2020 quarter”). Highlights for the March 2020 quarter were as follows: • Revenue of $2.50 billio

March 27, 2020 EX-99.1

NOTICE TO HOLDERS OF ANY AND ALL OUTSTANDING 2.625% SENIOR CONVERTIBLE NOTES DUE 2041 NOVELLUS SYSTEMS, INC. WITH CUSIP NUMBER 670008 AD3

NOTICE TO HOLDERS OF ANY AND ALL OUTSTANDING 2.625% SENIOR CONVERTIBLE NOTES DUE 2041 OF NOVELLUS SYSTEMS, INC. WITH CUSIP NUMBER 670008 AD3 Pursuant to Section 8.03(l) of the Indenture, dated as of May 10, 2011 (the “Indenture”) between Novellus Systems, Inc., a California corporation, as Issuer (the “Company”), and The Bank of New York Mellon Trust Company, N.A., as Trustee (the “Trustee”), as s

March 27, 2020 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K Current Report Pursuant to Section 13 or 15(d) o f the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): March 27, 2020 LAM RESEARCH CORPORATION (Exact name of registrant as specified in its charter) Delaware 0-12933 94-2634797 (State or Other Jurisdiction of Incorpora

March 17, 2020 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K Current Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): March 17, 2020 LAM RESEARCH CORPORATION (Exact name of registrant as specified in its charter) Delaware 0-12933 94-2634797 (State or Other Jurisdiction of Incorporation) (Commission F

March 17, 2020 8-K

Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K Current Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): March 16, 2020 LAM RESEARCH CORPORATION (Exact name of registrant as specified in its charter) Delaware 0-12933 94-2634797 (State or Other Jurisdiction of Incorporation) (Commission F

March 17, 2020 EX-99.1

Lam Research Corporation Provides Business Update for the Fiscal Quarter ending March 29, 2020

FOR IMMEDIATE RELEASE Lam Research Corporation Provides Business Update for the Fiscal Quarter ending March 29, 2020 FREMONT, Calif.

February 14, 2020 SC 13G/A

LRCX / Lam Research Corp. / AMERIPRISE FINANCIAL INC - SC 13G/A Passive Investment

SC 13G/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Amendment #7 Under the Securities and Exchange Act of 1934 Lam Research Corp (Name of Issuer) Common Stock (Title of Class of Securities) 512807108 (CUSIP Number) December 31, 2019 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is

February 14, 2020 EX-99.I

to Schedule 13G

EX-99.I Exhibit I to Schedule 13G Ameriprise Financial, Inc., a Delaware Corporation, is a parent holding company. The classification and identity of the relevant subsidiaries is as follows: Investment Adviser – Columbia Management Investment Advisers, LLC is an investment adviser registered under section 203 of the Investment Advisers Act of 1940.

February 14, 2020 EX-99.II

to Schedule 13G Joint Filing Agreement

EX-99.II Exhibit II to Schedule 13G Joint Filing Agreement The undersigned persons agree and consent to the joint filing on their behalf of this Schedule 13G dated February 14, 2020 in connection with their beneficial ownership of Lam Research Corp. Columbia Management Investment Advisers, LLC authorizes Ameriprise Financial, Inc. to execute the Schedule 13G to which this Exhibit is attached and m

February 12, 2020 SC 13G/A

LRCX / Lam Research Corp. / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 8)* Name of issuer: Lam Research Corp Title of Class of Securities: Common Stock CUSIP Number: 512807108 Date of Event Which Requires Filing of this Statement: December 31, 2019 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ☒ R

February 4, 2020 10-Q

Quarterly Report - 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended December 29, 2019 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number

January 29, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K Current Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): January 29, 2020 LAM RESEARCH CORPORATION (Exact name of registrant as specified in its charter) Delaware 0-12933 94-2634797 (State or Other Jurisdiction of Incorpor

January 29, 2020 EX-99.1

Key Financial Data for the Quarters Ended December 29, 2019 and September 29, 2019 (in thousands, except per-share data, percentages, and basis points) U.S. GAAP December 2019 September 2019 Change Q/Q Revenue $ 2,583,501 $ 2,165,746 + 19% Gross marg

Exhibit 99.1 FOR IMMEDIATE RELEASE Lam Research Corporation Reports Financial Results for the Quarter Ended December 29, 2019 FREMONT, Calif., January 29, 2020 - Lam Research Corporation (the "Company," "Lam," "Lam Research") today announced financial results for the quarter ended December 29, 2019 (the “December 2019 quarter”). Highlights for the December 2019 quarter were as follows: • Revenue o

December 13, 2019 EX-99.1

NOTICE TO HOLDERS OF ANY AND ALL OUTSTANDING 2.625% SENIOR CONVERTIBLE NOTES DUE 2041 NOVELLUS SYSTEMS, INC. WITH CUSIP NUMBER 670008 AD3

NOTICE TO HOLDERS OF ANY AND ALL OUTSTANDING 2.625% SENIOR CONVERTIBLE NOTES DUE 2041 OF NOVELLUS SYSTEMS, INC. WITH CUSIP NUMBER 670008 AD3 Pursuant to Section 8.03(l) of the Indenture, dated as of May 10, 2011 (the “Indenture”) between Novellus Systems, Inc., a California corporation, as Issuer (the “Company”), and The Bank of New York Mellon Trust Company, N.A., as Trustee (the “Trustee”), as s

December 13, 2019 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K Current Report Pursuant to Section 13 or 15(d) o f the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): December 13, 2019 LAM RESEARCH CORPORATION (Exact name of registrant as specified in its charter) Delaware 0-12933 94-2634797 (State or Other Jurisdiction of Incorp

November 7, 2019 8-K

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K Current Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): November 5, 2019 LAM RESEARCH CORPORATION (Exact name of registrant as specified in its charter) Delaware 0-12933 94-2634797 (State or Other Jurisdiction of Incorporation) (Commission

October 29, 2019 10-Q

Quarterly Report - 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 29, 2019 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file numbe

October 23, 2019 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K Current Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): October 23, 2019 LAM RESEARCH CORPORATION (Exact name of registrant as specified in its charter) Delaware 0-12933 94-2634797 (State or Other Jurisdiction of Incorpor

October 23, 2019 EX-99.1

Key Financial Data for the Quarters Ended September 29, 2019 and June 30, 2019 (in thousands, except per-share data, percentages, and basis points) U.S. GAAP September 2019 June 2019 Change Q/Q Revenue $ 2,165,746 $ 2,361,147 - 8% Gross margin as per

Exhibit 99.1 FOR IMMEDIATE RELEASE Lam Research Corporation Contacts: Tina Correia, Investor Relations, phone: 510-572-1615, e-mail: [email protected] Lam Research Corporation Reports Financial Results for the Quarter Ended September 29, 2019 FREMONT, Calif., October 23, 2019 - Lam Research Corporation (the "Company," "Lam," "Lam Research") today announced financial results for th

October 16, 2019 DEFA14A

LRCX / Lam Research Corp. DEFA14A - - DEFA14A

DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, fo

October 15, 2019 DEFA14A

LRCX / Lam Research Corp. DEFA14A - - DEFA14A

DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, fo

October 4, 2019 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

8-K 1 lrcx8-kconversionratea.htm 8-K Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K Current Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): October 4, 2019 LAM RESEARCH CORPORATION (Exact name of registrant as specified in its charter) Delaware 0-12933 94-2634797 (Sta

October 4, 2019 EX-99.1

NOTICE TO HOLDERS OF ANY AND ALL OUTSTANDING 2.625% SENIOR CONVERTIBLE NOTES DUE 2041 NOVELLUS SYSTEMS, INC. WITH CUSIP NUMBER 670008 AD3

NOTICE TO HOLDERS OF ANY AND ALL OUTSTANDING 2.625% SENIOR CONVERTIBLE NOTES DUE 2041 OF NOVELLUS SYSTEMS, INC. WITH CUSIP NUMBER 670008 AD3 Pursuant to Section 8.03(l) of the Indenture, dated as of May 10, 2011 (the “Indenture”) between Novellus Systems, Inc., a California corporation, as Issuer (the “Company”), and The Bank of New York Mellon Trust Company, N.A., as Trustee (the “Trustee”), as s

September 26, 2019 S-8

LRCX / Lam Research Corp. S-8 - - S-8

S-8 1 lrcxs-8x401kxsep2019.htm S-8 As filed with the Securities and Exchange Commission on September 26, 2019 Registration No. 333- UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM S-8 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 LAM RESEARCH CORPORATION (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporat

September 26, 2019 EX-4.3

Savings Plus Plan, Lam Research 401(k).

Volume Submitter Defined Contribution Plan Fidelity Basic Plan Document NO. 17 Fidelity Management & Research Company and its affiliates do not provide tax or legal advice. Nothing herein or in any attachments hereto should be construed, or relied upon, as tax or legal advice. IRS CIRCULAR 230 DISCLOSURE: To the extent this document (including attachments), mentions or references any tax matter, i

September 25, 2019 DEFA14A

LRCX / Lam Research Corp. DEFA14A - - DEFA14A

DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☑ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, fo

September 25, 2019 DEF 14A

September 25, 2019

DEF 14A Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

August 26, 2019 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K Current Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 21, 2019 LAM RESEARCH CORPORATION (Exact name of registrant as specified in its charter) Delaware 0-12933 94-2634797 (State or Other Jurisdiction of Incorpora

August 20, 2019 EX-21

Subsidiaries of the Registrant.

EX-21 3 exhibit21june2019.htm EXHIBIT 21 Exhibit 21 SUBSIDIARIES OF THE REGISTRANT* SUBSIDIARY (as of August 20, 2019) STATE OR OTHER JURISDICTION OF OPERATION Lam Research AG Austria Lam Research Management GmbH Austria Lam Research Belgium BVBA Belgium Novellus Systems, Inc. California, United States Novellus Systems International, LLC California, United States Lam Research International Holding

August 20, 2019 EX-4.10

Description of Common Stock

EX-4.10 2 exhibit410june2019.htm EXHIBIT 4.10 Exhibit 4.10 DESCRIPTION OF COMMON STOCK The following summary description sets forth some of the general terms and provisions of the common stock. Because this is a summary description, it does not contain all of the information that may be important to you. For a more detailed description of the common stock, you should refer to the provisions of our

August 20, 2019 10-K

Annual Report - 10-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended June 30, 2019 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to . Commission file number: 0-12933

August 14, 2019 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K Current Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 8, 2019 LAM RESEARCH CORPORATION (Exact name of registrant as specified in its charter) Delaware 0-12933 94-2634797 (State or Other Jurisdiction of Incorporat

August 14, 2019 EX-10.1

Amendment to Employment Agreement with Timothy M. Archer dated August 8, 2019 which is incorporated by reference to Exhibit 10.1 to the Registrant’s Current Report on Form 8-K filed on August 14, 2019 (SEC File No. 000-12933).

Exhibit 10.1 AMENDMENT TO EMPLOYMENT AGREEMENT This Amendment to Employment Agreement (this “Amendment”) is entered into and effective this 8th day of August, 2019 (the “Effective Date”), by and between Lam Research Corporation, a Delaware corporation (the “Company”), and Timothy M. Archer (the “Executive”). RECITALS WHEREAS, the Executive and the Company (the “Parties”) previously entered into an

July 31, 2019 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K Current Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): July 31, 2019 LAM RESEARCH CORPORATION (Exact name of registrant as specified in its charter) Delaware 0-12933 94-2634797 (State or Other Jurisdiction of Incorporati

July 31, 2019 EX-99.1

Key Financial Data for the Quarters Ended June 30, 2019 and March 31, 2019 (in thousands, except per-share data, percentages, and basis points) U.S. GAAP June 2019 March 2019 Change Q/Q Revenue $ 2,361,147 $ 2,439,048 -3% Gross margin as percentage o

Exhibit 99.1 FOR IMMEDIATE RELEASE Lam Research Corporation Contacts: Tina Correia, Investor Relations, phone: 510-572-1615, e-mail: [email protected] Lam Research Corporation Reports Financial Results for the Quarter Ended June 30, 2019 FREMONT, Calif., July 31, 2019 - Lam Research Corporation (the “Company,” “Lam,” “Lam Research”) today announced financial results for the quarte

June 28, 2019 11-K

LRCX / Lam Research Corp. 11-K - - 11-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K (Mark One) x ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2018 OR ¨ TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 0-12933 A. Full tit

June 14, 2019 EX-99.1

NOTICE TO HOLDERS OF ANY AND ALL OUTSTANDING 2.625% SENIOR CONVERTIBLE NOTES DUE 2041 NOVELLUS SYSTEMS, INC. WITH CUSIP NUMBER 670008 AD3

NOTICE TO HOLDERS OF ANY AND ALL OUTSTANDING 2.625% SENIOR CONVERTIBLE NOTES DUE 2041 OF NOVELLUS SYSTEMS, INC. WITH CUSIP NUMBER 670008 AD3 Pursuant to Section 8.03(l) of the Indenture, dated as of May 10, 2011 (the “Indenture”) between Novellus Systems, Inc., a California corporation, as Issuer (the “Company”), and The Bank of New York Mellon Trust Company, N.A., as Trustee (the “Trustee”), as s

June 14, 2019 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

8-K 1 lrcx8-kxconversionrateadj.htm CONVERSION RATE ADJUSTMENT NOTICE 2041 NOTES Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K Current Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): June 14, 2019 LAM RESEARCH CORPORATION (Exact name of registrant as specified in its

June 3, 2019 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

FORM 8-K Current Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): June 3, 2019 LAM RESEARCH CORPORATION (Exact name of registrant as specified in its charter) Delaware 0-12933 94-2634797 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification Number) 4650 Cushing Parkway Frem

May 31, 2019 SD

LRCX / Lam Research Corp. SD - - SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT LAM RESEARCH CORPORATION (Exact name of registrant as specified in its charter) Delaware 0-12933 94-2634797 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification Number) 4650 Cushing Parkway Fremont, California 94538 (Address of principal exec

May 31, 2019 EX-1.01

Conflict Minerals Report of Lam Research Corporation.

Exhibit 1.01 LAM RESEARCH CORPORATION CONFLICT MINERALS REPORT For the reporting period from January 1, 2018 through December 31, 2018 This Conflict Minerals Report (this “Report”) of Lam Research Corporation (including its consolidated subsidiaries, the “Company”, “Lam”, “we” or “our”) has been prepared pursuant to Rule 13p-1 and Form SD promulgated under the Securities Exchange Act of 1934, for

May 13, 2019 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Financial Statements and Exhibits

FORM 8-K Current Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 8, 2019 LAM RESEARCH CORPORATION (Exact name of registrant as specified in its charter) Delaware 0-12933 94-2634797 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification Number) 4650 Cushing Parkway Fremo

May 13, 2019 EX-3.2

Amended and Restated Bylaws of Lam Research Corporation dated May 8, 2019

AMENDED AND RESTATED BYLAWS OF LAM RESEARCH CORPORATION Amended and restated as of May 8, 2019 ARTICLE I CORPORATE OFFICES 1.

April 30, 2019 S-8

LRCX / Lam Research Corp. S-8 S-8 ESPP AMENDMENT

As filed with the Securities and Exchange Commission on April 30, 2019 Registration No.

April 30, 2019 EX-4.1

Lam Research Corporation 1999 Employee Stock Purchase Plan, as amended and restated.

Exhibit 4.1 LAM RESEARCH CORPORATION 1999 EMPLOYEE STOCK PURCHASE PLAN Amended and Restated Effective as of August 29, 2018 1. Purpose. This Amended and Restated Lam Research Corporation 1999 Employee Stock Purchase Plan (“Plan”) is amended and restated as of August 29, 2018. The Plan is intended to provide employees of the Company and its Designated Subsidiaries with an opportunity to purchase Co

April 30, 2019 EX-10.3

Form of Restricted Stock Unit Agreement (Outside Directors) - 2015 Stock Incentive Plan which is incorporated by reference to Exhibit 10.3 to the Registrant’s Quarterly Report on Form 10-Q filed on April 30, 2019 (SEC File No. 000-12933).

Exhibit 10.3 LAM RESEARCH CORPORATION 2015 Stock Incentive Plan Restricted Stock Unit Award Agreement Outside Directors Pursuant to the terms of the 2015 Stock Incentive Plan (the “Plan”) Lam Research Corporation, a Delaware corporation (the “Company”), hereby awards restricted stock units (“RSUs”) to the Grantee (“Participant”) who is an Outside Director of the Company on the terms and conditions

April 30, 2019 EX-10.2

Form of Restricted Stock Unit Agreement (International Participants) - 2015 Stock Incentive Plan which is incorporated by reference to Exhibit 10.2 to the Registrant’s Quarterly Report on Form 10-Q filed on April 30, 2019 (SEC File No. 000-12933).

Exhibit 10.2 LAM RESEARCH CORPORATION 2015 Stock Incentive Plan Restricted Stock Unit Award Agreement (International Participants) Pursuant to the terms of the 2015 Stock Incentive Plan (the “Plan”) Lam Research Corporation, a Delaware corporation (the “Company”), hereby awards restricted stock units (“RSUs”) to the Grantee (the “Participant”) on the terms and conditions as set forth in this Restr

April 30, 2019 10-Q

Quarterly Report - 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2019 or ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 0-

April 30, 2019 EX-10.5

Form of Market-Based Performance Restricted Stock Unit Award Agreement (International Participants) - 2015 Stock Incentive Plan which is incorporated by reference to Exhibit 10.5 to the Registrant’s Quarterly Report on Form 10-Q filed on April 30, 2019 (SEC File No. 000-12933).

EX-10.5 6 lrcx3q2019exhibit10520.htm EXHIBIT 10.5 Exhibit 10.5 LAM RESEARCH CORPORATION 2015 Stock Incentive Plan Market-Based Performance Restricted Stock Unit Award Agreement (International Participants) Pursuant to the terms of the 2015 Stock Incentive Plan (the “Plan”) Lam Research Corporation, a Delaware corporation (the “Company”), hereby awards market-based performance restricted stock unit

April 30, 2019 EX-10.1

Form of Restricted Stock Unit Agreement (U.S. Participants) - 2015 Stock Incentive Plan which is incorporated by reference to Exhibit 10.1 to the Registrant’s Quarterly Report on Form 10-Q filed on April 30, 2019 (SEC File No. 000-12933).

EX-10.1 2 lrcx3q2019exhibit10120.htm EXHIBIT 10.1 Exhibit 10.1 LAM RESEARCH CORPORATION 2015 Stock Incentive Plan Restricted Stock Unit Award Agreement (U.S. Participants) Pursuant to the terms of the 2015 Stock Incentive Plan (the “Plan”) Lam Research Corporation, a Delaware corporation (the “Company”), hereby awards restricted stock units (“RSUs”) to the Grantee (the “Participant) on the terms a

April 30, 2019 EX-10.4

Form of Market-Based Performance Restricted Stock Unit Award Agreement (U.S. Participants) - 2015 Stock Incentive Plan which is incorporated by reference to Exhibit 10.4 to the Registrant’s Quarterly Report on Form 10-Q filed on April 30, 2019 (SEC File No. 000-12933).

Exhibit 10.4 LAM RESEARCH CORPORATION 2015 Stock Incentive Plan Market-Based Performance Restricted Stock Unit Award Agreement (U.S. Participants) Pursuant to the terms of the 2015 Stock Incentive Plan (the “Plan”) Lam Research Corporation, a Delaware corporation (the “Company”), hereby awards market-based performance restricted stock units (“mPRSUs”) to the Grantee (the “Participant”) on the term

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