LAM RESEARCH CORP — Director's Dealing 2015

Feb 20, 2015

SEC Form 4/A — Form 4/A

Issuer: LAM RESEARCH CORP (LRCX)
CIK: 0000707549
Period of Report: 2015-02-11

Reporting Person: Bettinger Douglas R (EVP, Chief Financial Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2015-02-11	Common Stock	A	12406	—	Acquired	46124	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2015-02-11	Employee Stock Option (Right to Buy)	$80.6	A	9303	Acquired	2022-02-11	Common Stock (9303)	Direct
2015-02-11	Market-based Performance Restricted Stock Unit	$0	A	15508	Acquired		Common Stock (15508)	Direct

Footnotes

F1: 33.3% of the RSUs will vest on 2/11/16, 2/11/17 and 2/11/18.

F2: The stock option exercise of 1,089 shares, and sale of common stock acquired upon such exercise, of 544 shares pursuant to a 10b5-1 Trading Plan that were reported in a Form 4 filed on February 13, 2015 (the "Form 4"), which the broker acknowledged were erroneously executed without the reporting person's involvement due to the broker's error, were undone through the broker's error account and therefore did not occur for the reporting person's account. After nullifying the erroneous transactions, and after the following Form 4 reported grants of Restricted Stock Units representing 12,406 shares, a Stock Option representing 9,303 shares, and Market-based Performance Restricted Stock Units representing 15,508 shares , the reporting person owned 46,124 shares of common stock, including shares subject to unvested Restricted Stock Units, and held Employee Stock Options subject to 66,399 shares and Market-based Performance Restricted Stock Units representing 51,731 shares.

F3: 33.3% of the stock options will vest on 2/11/16, 2/11/17 and 2/11/18.

F4: These Market-based Performance Restricted Stock Units vest between 0% and 150% on 2/11/18. The performance of these awards 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