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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
707549	Lam Research Corp	LRCX	Special Industry Machinery, Nec (3559)	942634797

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1343600	Timothy Archer	4650 Cushing Parkway Fremont CA 94538	Chief Operating Officer	No	Yes	No	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership
Common Stock	Acquisiton	2017-01-17	20,500	$29.34	102,561	No	4	M	Direct
Common Stock	Disposition	2017-01-17	19,100	$109.29	83,461	No	4	S	Direct
Common Stock	Disposition	2017-01-17	1,400	$110.31	82,061	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership
No	4	M	Direct
No	4	S	Direct
No	4	S	Direct

Reported Derivative Transactions

Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Employee Stock Option (Right to Buy)	Disposition	2017-01-17	20,500	$29.34	20,500	$29.34

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
20,000	2011-12-16	2020-12-16	No	4	M	Direct

Reported Non-Derivative Holdings

Sec. Name	Remaning Holdings	Nature of Ownership	Explanation
Common Stock	4,367	Indirect	By 401(k)
Common Stock	516	Indirect	By Spouse 401(k)

Footnotes

Shares exercised pursuant to 10b5-1 Trading Plan
Amount reported includes shares subject to unvested Restricted Stock Units.
Shares sold pursuant to 10b5-1 Trading Plan.
The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $109.00 to $109.94, inclusive.
The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $110.12 to $110.40, inclusive.
The option vested 25% annually from 12/16/2011 to 12/16/2014.