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Filing Details

Accession Number:: 0000855658-11-000058
Form Type:: 4
Zero Holdings:: No
Publication Time:: 2011-05-06 17:48:02
Reporting Period:: 2011-05-04

Filing Date:: 2011-05-06
Accepted Time:: 2011-05-06 17:48:02
SEC Url:: Form 4 Filing

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
855658	Lattice Semiconductor Corp	LSCC	Semiconductors & Related Devices (3674)	930835214

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1292289	Wayne Byron Milstead	5555 N.e. Moore Ct. Hillsboro OR 97124	Corp Vp And General Counsel	No	Yes	No	No

Reported Non-Derivative Transactions

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Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership
Common Stock	Acquisiton	2011-05-04	1,400	$0.00	6,793	No	4	M	Direct
Common Stock	Disposition	2011-05-04	496	$6.79	6,297	No	4	F	Direct
Common Stock	Acquisiton	2011-05-05	16,668	$2.32	22,965	No	4	M	Direct
Common Stock	Disposition	2011-05-05	16,668	$6.68	6,297	No	4	S	Direct
Common Stock	Acquisiton	2011-05-05	8,125	$1.98	14,422	No	4	M	Direct
Common Stock	Disposition	2011-05-05	8,125	$6.68	6,297	No	4	S	Direct

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

Reported Derivative Transactions

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Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Non-Qualified Stock Option (right to buy)	Disposition	2011-05-05	8,125	$0.00	8,125	$1.98
Common Stock	Non-Qualified Stock Option (right to buy)	Disposition	2011-05-05	16,668	$0.00	16,668	$2.32
Common Stock	Restricted Stock Unit (RSU)	Disposition	2011-05-04	1,400	$0.00	1,400	$0.00

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
81,250	2010-02-03	2016-11-03	No	4	M	Direct
83,346	2009-08-04	2015-08-04	No	4	M	Direct
7,000			No	4	M	Direct

Footnotes

Restricted Stock Units - no purchase price for this transaction.
These shares were retained by the Issuer in order to meet the tax withholding obligations of the Reporting Person in connection with the vesting of an installment of the restricted stock units. The amoun retained by the Issuer was not in excess of the amount of the tax liability.
The transaction indicated was conducted under an approved 10b5-1 Plan.
This option to purchase shares of common stock becomes exercisable over a four year period where in 1/16th (6.25%) of the total shares granted vest on each quarterly anniversary of the grant date.
This option to purchase shares of common stock vests as follows: 25% of the total amount of shares subject to the option shall vest on 8/4/2009. 6.25% of the total amount of the shares subject to the option shall vest each three months thereafter until all shares are vested on 8/4/2012.
Each Restricted Stock Unit (RSU) represents a right to receive one share of the Issuers common shares without payment of specific consideration.
Grants of Restricted Stock Units (RSUs) vest as follows: 25% of the RSUs will vest on 8/4/2009 and an additional 6.25% of the RSUs vest each three months thereafter until 100% of the RSU grant is vested on 8/4/2012.
22,400 Restricted Stock Units (RSUs) were granted on 8/4/08 and vest, in whole shares as follows: 25% of the RSU grant shall vest on 8/4/09, and an additional 6.25% of the RSUs vest on each three months thereafter until 100% of the RSU grant is vested on 8/4/2012.