LAM RESEARCH CORP — Director's Dealing 2017

May 30, 2017

SEC Form 3 — Initial Statement of Beneficial Ownership

Issuer: LAM RESEARCH CORP (LRCX)
CIK: 0000707549
Period of Report: 2017-05-22

Reporting Person: Varadarajan Seshasayee (Group Vice President)

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	86379	Direct
Common Stock	216	Indirect

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Market-based Performance Restricted Stock Unit	$0.0		Common Stock (6203.0)		Direct
Market-based Performance Restricted Stock Unit	$0.0		Common Stock (7957.0)		Direct
Market-based Performance Restricted Stock Unit	$0.0		Common Stock (5180.0)		Direct
Stock Option (right to buy)	$13.54	2018-10-16	Common Stock (50.0)		Direct

Footnotes

F1: Amount reported includes shares subject to unvested Restricted Stock Units.

F2: These Market-based Performance Restricted Stock Units vest between 0% and 150% on 2/11/18. 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 2/2/15 to 2/2/18.

F3: These Market-based Performance Restricted Stock Units vest between 0% and 150% on 3/1/19. 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 2/1/16 to 2/1/19.

F4: These Market-based Performance Restricted Stock Units vest between 0% and 150% on 3/1/20. 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 2/1/17 to 1/31/20.