X0303 4 2009-04-01 0 0001094739 FINISAR CORP FNSR 0001378817 Colyar Mark C/O FINISAR CORPORATION 1389 MOFFETT PARK DRIVE SUNNYVALE CA 94089 0 1 0 0 Sr.VP,Operations & Engineering Common Stock 2009-04-01 2009-04-01 4 F 0 10077 0.46 D 614811 D On April 1, 2009, the Reporting Person vested in 27,397 restricted stock units ("RSUs") and as a result acquired 27,397 shares of common stock of the Issuer pursuant to the Reporting Person's September 25, 2007 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. /S/ Mark Colyar 2009-04-03