X0202 4 2008-02-19 1 0000893160 VENTANA MEDICAL SYSTEMS INC VMSI 0001051711 WEERSING JAMES R 1910 INNOVATION PARK DRIVE TUCSON AZ 85755 1 0 0 0 Stock Options (Right to Buy) 12.115 2008-02-19 4 D 0 10928 77.385 D 2001-06-06 2011-05-03 Common Stock 10928 0 D Stock Options (Right to Buy) 41.41 2008-02-19 4 D 0 5774 47.09 D 2005-12-15 2015-12-15 Common Stock 5774 0 D Stock Options (Right to Buy) 24.485 2008-02-19 4 D 0 10576 65.015 D 2004-05-04 2014-05-04 Common Stock 10576 0 D Stock Options (Right to Buy) 51.32 2008-02-19 4 D 0 4583 38.18 D 2007-05-23 2017-05-23 Common Stock 4583 0 D Stock Options (Right to Buy) 33.73 2008-02-19 4 D 0 9148 55.77 D 2004-12-28 2014-12-28 Common Stock 9148 0 D Stock Options (Right to Buy) 12.115 2008-02-19 4 D 0 40200 77.385 D 2001-06-06 2011-05-03 Common Stock 40200 0 D This option, which provided for monthly vesting beginning June 6, 2001, was cancelled in the merger in exchange for a cash payment equal to the product of (a) the excess of $89.50 over the applicable exercise price and (b) the number of shares subject to the option, reduced by applicable withholding taxes. This option, which was fully vested at grant on December 15, 2005, was cancelled in the merger in exchange for a cash payment equal to the product of (a) the excess of $89.50 over the applicable exercise price and (b) the number of shares subject to the option, reduced by applicable withholding taxes. This option, which provided for monthly vesting beginning May 4, 2004, was cancelled in the merger in exchange for a cash payment equal to the product of (a) the excess of $89.50 over the applicable exercise price and (b) the number of shares subject to the option, reduced by applicable withholding taxes. This option, which provided for monthly vesting beginning May 23, 2007, was cancelled in the merger in exchange for a cash payment equal to the product of (a) the excess of $89.50 over the applicable exercise price and (b) the number of shares subject to the option, reduced by applicable withholding taxes. This option, which was fully vested at grant on December 28, 2004, was cancelled in the merger in exchange for a cash payment equal to the product of (a) the excess of $89.50 over the applicable exercise price and (b) the number of shares subject to the option, reduced by applicable withholding taxes. Leslie Oaks Attorney in Fatc for James Weersing 2008-02-20