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
        
          
 
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        Filed by a Party other than the Registrant  ☐
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         ☐ Preliminary Proxy Statement
        
         ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))
        
        ☐
           Definitive Proxy Statement
        
         ☒ Definitive Additional Materials
        
         ☐ Soliciting Material Pursuant to §240.14a-12
        LAM RESEARCH CORPORATION
        
        (Name
          of Registrant as Specified In Its Charter)
        
         
        
        (Name
          of Person(s) Filing Proxy Statement, if other than the Registrant)
        Payment of Filing Fee (Check the appropriate box):
        
        ☒ No fee required
        
         ☐ Fee paid previously with preliminary materials
        
         ☐ Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(1) and 0-11
       
      
        
         
        
         
        
        
        
        
        
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          Control #
          V57231-Z88213-P16278
          LAM RESEARCH CORPORATION
          ATTN: INVESTOR RELATIONS
          4650 CUSHING PARKWAY
          FREMONT, CALIFORNIA 94538
          LAM RESEARCH CORPORATION
          2024 Annual Meeting
          Vote by November 4, 2024
          11:59 PM ET
          You invested in LAM RESEARCH CORPORATION and it’s time to vote!
          You have the right to vote on proposals being presented at the Annual Meeting. This is an important notice regarding the
          availability of proxy materials for the stockholder meeting to be held on November 5, 2024.
          Get informed before you vote
          View the Notice and Proxy Statement and Annual Report Combined Document online OR you can receive a free paper or email copy
          of the material(s) by requesting prior to October 22, 2024. If you would like to request a copy of the material(s) for this and/or future
          stockholder meetings, you may (1) visit www.ProxyVote.com, (2) call 1-800-579-1639 or (3) send an email to sendmaterial@proxyvote.com.
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          Vote Virtually at the Meeting*
          November 5, 2024
          9:30 A.M. PT
          Virtually at:
          www.virtualshareholdermeeting.com/LRCX2024
          *Please check the meeting materials for any special requirements for meeting attendance.
        
        
        
        
        
        
         
        
        
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              THIS IS NOT A VOTABLE BALLOT
              This is an overview of the proposals being presented at the
              upcoming stockholder meeting. Please follow the instructions on
              the reverse side to vote these important matters.
              Voting Items
              Board
              Recommends
              1. Election of Directors
              Nominees:
              1a. Sohail U. Ahmed For
              1b. Timothy M. Archer For
              1c. Eric K. Brandt For
              1d. Ita M. Brennan For
              1e. Michael R. Cannon For
              1f. John M. Dineen For
              1g. Mark Fields For
              1h. Ho Kyu Kang For
              1i. Bethany J. Mayer For
              1j. Jyoti K. Mehra For
              1k. Abhijit Y. Talwalkar For
              2. Advisory vote to approve the compensation of the named executive officers of Lam Research, or “Say on Pay.” For
              3. Ratification of the appointment of the independent registered public accounting firm for fiscal year 2025. For
              NOTE: Other business that may properly come before the annual meeting (including any adjournment or postponement
              thereof) will be voted as the proxy holders deem advisable.
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