X0303 4 2010-12-01 0001094739 FINISAR CORP FNSR 0001378817 Colyar Mark 1389 MOFFETT PARK DRIVE SUNNYVALE CA 94089-1134 1 Sr. VP Operations/Engineering Common Stock 2010-12-01 2010-12-01 4 F 0 288.0000 19.7700 D 87948.0000 D Common Stock 2010-12-02 4 M 0 29893.0000 11.8400 A 117841.0000 D Common Stock 2010-12-02 2010-12-02 4 S 0 29893.0000 22.5500 D 87948.0000 D Common Stock 2010-12-03 4 M 0 41859.0000 11.8400 A 129807.0000 D Common Stock 2010-12-03 4 M 0 31939.0000 3.3600 A 161746.0000 D Common Stock 2010-12-03 2010-12-03 4 S 0 31939.0000 24.5500 D 129807.0000 D Common Stock 2010-12-03 2010-12-03 4 S 0 41859.0000 23.5500 D 87948.0000 D Stock Option (Right to Buy) 11.8400 2010-12-02 4 M 0 29893.0000 0.0000 D 2009-09-02 2016-05-02 Common Stock 29893.0000 0.0000 D Stock Option (Right to Buy) 3.3600 2010-12-03 4 M 0 31939.0000 0.0000 D 2009-08-12 2018-12-12 Common Stock 31939.0000 24213.0000 D Stock Option (Right to Buy) 11.8400 2010-12-03 4 M 0 41859.0000 0.0000 D 2009-09-02 2018-09-02 Common Stock 41859.0000 0.0000 D On Dec 1, 2010, the Reporting Person vested in 938 restricted stock units ("RSUs") and as a result acquired 938 shares of common stock of the Issuer pursuant to the Reporting Person's December 8, 2009 grant of RSUs. This Form 4 reports the disposition of shares withheld by the Issuer pursuant to the RSUs' grant agreement in order to satisfy the Reporting Person's withholding obligations for various taxes due upon the vesting of the RSUs. The Issuer will pay the taxes on behalf of the Reporting Person. Shares were sold pursuant to a Rule 10b5-1 Stock Trading Plan adopted by the reporting person on September 16, 2010 Girija Karumanchi as Attorney-in-fact for 2010-12-03