FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person * ARCHER TIMOTHY   2. Issuer Name and Ticker or Trading Symbol LAM RESEARCH CORP [LRCX] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) Chief Operating Officer (Last) (First) (Middle) 4650 CUSHING PARKWAY 3. Date of Earliest Transaction (Month/Day/Year) 02/17/2017 (Street) FREMONT, CA 94538 4. If Amendment, Date Original Filed(Month/Day/Year) 6. Individual or Joint/Group Filing(Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 02/17/2017   F   4,032 D $ 114.9 69,231 (1) D   Common Stock 02/17/2017   M   43,468 (2) A $ 114.9 112,699 (1) D   Common Stock 02/21/2017   M   30,000 (3) A $ 42.61 142,699 (1) D   Common Stock 02/21/2017   S   30,000 (4) D $ 117.61 112,699 (1) D   Common Stock               4,385 I By 401(k) Common Stock               518 I By Spouse 401(k)

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code (Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date (Month/Day/Year)

7. Title and Amount of Underlying Securities (Instr. 3 and 4)

8. Price of Derivative Security (Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Market-based Performance Restricted Stock Unit

$ 0

02/17/2017

M

28,979 (2)

(5)

(5)

Common Stock

28,979

$ 0

0

D

Employee Stock Option (Right to Buy)

$ 42.61

02/21/2017

M

30,000 (3)

02/08/2015

02/08/2020

Common Stock

30,000

$ 42.61

0

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
ARCHER TIMOTHY 4650 CUSHING PARKWAY FREMONT, CA 94538			Chief Operating Officer

Signatures

Leign Cramer by Power of Attorney		02/22/2017
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	Amount reported includes shares subject to unvested Restricted Stock Units.
(2)	On 2/18/14, the Reporting Person received a target grant of 28,979 Market-based Performance Restricted Stock Units vesting between 0% and 150% on 2/18/17. The performance of this award was based on the Lam Research Total Shareholder Return performance relative to the Philadelphia Semiconductor Sector Index Total Shareholder Return during the performance period of 2/18/14 to 2/17/17. The performance payout was approved at 150% of target.
(3)	Shares exercised pursuant to 10b5-1 Trading Plan
(4)	Shares sold pursuant to 10b5-1 Trading Plan.
(5)	These Market-based Performance Restricted Stock Units vest between 0% and 150% on 2/18/17. The performance of this award is based on the Lam Research Total Shareholder Return performance relative to the Philadelphia Semiconductor Sector Index Total Shareholder Return during the performance period of 2/18/14 to 2/17/17.

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