Statement of Changes in Beneficial Ownership (4)

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

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Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

1. Name and Address of Reporting Person * Bettinger Douglas R	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 Financial Officer & EVP
(Last)          (First)          (Middle) 4650 CUSHING PARKWAY	3. Date of Earliest Transaction (MM/DD/YYYY) 2/28/2020
(Street) FREMONT, CA 94538 (City)        (State)        (Zip)	4. If Amendment, Date Original Filed (MM/DD/YYYY)	6. Individual or Joint/Group Filing (Check Applicable Line) _X _ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security (Instr. 3)	2. Trans. Date	2A. Deemed Execution Date, if any	3. Trans. 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	2/28/2020		F		8492 (1)	D	$293.43	105344 (2)	D
Common Stock	2/28/2020		F		789 (1)	D	$293.43	104555 (2)	D
Common Stock	2/28/2020		F		566 (1)	D	$293.43	103989 (2)	D
Common Stock	2/28/2020		F		1569 (1)	D	$293.43	102420 (2)	D
Common Stock	2/28/2020		F		782 (1)	D	$293.43	101638 (2)	D
Common Stock	3/2/2020		A		3515 (3)	A	$0	105153 (2)	D

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Trans. Date	3A. Deemed Execution Date, if any	4. Trans. 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		7. Title and Amount of Securities Underlying Derivative Security (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	$0.0	3/2/2020		A		4393		(4)	(4)	Common Stock	4393.0	$0	4393	D
Employee Stock Option (Right to Buy)	$300.33	3/2/2020		A		3512		(5)	3/2/2027	Common Stock	3512.0	$300.33	3512	D

Explanation of Responses:
(1)	Represents the number of shares that were automatically withheld upon vesting of restricted stock units to satisfy tax withholding obligations.
(2)	Amount reported includes shares subject to unvested Restricted Stock Units.
(3)	The Restricted Stock Units will vest in three equal installments on 03/02/2021, 03/02/2022, and 03/02/2023.
(4)	These Market-based Performance Restricted Stock Units vest between 0% and 150% on 03/02/2023. 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 02/03/2020 through 02/02/2023.
(5)	The stock option becomes exercisable in three equal installments on 03/02/2021, 03/02/2022, and 03/02/2023.

Reporting Owners
Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Bettinger Douglas R 4650 CUSHING PARKWAY FREMONT, CA 94538			Chief Financial Officer & EVP

Signatures
Brenna Hodgson by Power of Attorney		3/3/2020
**Signature of Reporting Person		Date