O'Brien Robert W Jr 4

4 · LATTICE SEMICONDUCTOR CORP · Filed Feb 10, 2009

Form 4

Period: 2008-08-06

Interim CFO

Transactions

Exercise/Conversion
Common Stock
2008-08-06+138→ 2,954 total
Exercise/Conversion
Common Stock
2008-11-06+137→ 3,034 total
Tax Payment
Common Stock
2008-11-06$1.58/sh−48$76→ 2,986 total
Tax Payment
Common Stock
2009-02-06$1.57/sh−57$89→ 3,067 total
Exercise/Conversion
Restricted Stock Unit (RSU)
2008-08-06−138→ 1,650 total
Exercise: $0.00→ Common Stock (138 underlying)
Exercise/Conversion
Restricted Stock Unit (RSU)
2008-11-06−137→ 1,513 total
Exercise: $0.00→ Common Stock (137 underlying)
Tax Payment
Common Stock
2008-08-06$2.44/sh−57$139→ 2,897 total
Exercise/Conversion
Common Stock
2009-02-06+138→ 3,124 total
Exercise/Conversion
Restricted Stock Unit (RSU)
2009-02-06−138→ 1,375 total
Exercise: $0.00→ Common Stock (138 underlying)

Footnotes (4)

[F1]Restricted Stock Units - no purchase price for this transaction.
[F2]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.
[F3]Restricted Stock Units - no exercise price for this transaction.
[F4]2,200 Restricted Stock Units (RSUs) were granted on 8/6/07 and vest, in whole shares as follows: 6.25% of the RSU grant shall vest on 11/6/07, and an additional 6.25% of the RSUs vest on each three months thereafter until 100% of the RSU grant is vested on 8/6/11.

Documents

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