X0202 4 2006-04-03 0 0001082510 UIL HOLDINGS CORP UIL 0001024134 CHASE ARNOLD L 157 CHURCH STREET P. O. BOX 1564 NEW HAVEN CT 06510 1 0 0 0 Common Stock 1200 D Phantom Stock Units 52.59 2006-04-03 4 A 0 109.328 52.59 A 1988-08-08 1988-08-08 Common Stock 109.328 8094.863 D Restricted Common Stock 50.905 2009-03-27 2009-03-27 Common Stock 3600 3600 D (1 of 1) Phantom Stock Units were accrued pursuant to UIL Holdings Corporation's Common Stock and Deferred Compensation Plan and are to be converted to common stock upon retirement. Restricted Common Stock shares held in UIL Holdings Corporation's Deferred Compensation Plan (DCP); restriction removed on 1,200 shares on 3/22/2007; 1,200 shares on 3/28/2008 and 1,200 shares on 3/27/2009. The units are to be settled in UIL Holdings Corporation's Common Stock upon termination of the Reporting Person's service (other than by death) or termination of the Plan. The Staff has designated "08/08/1988" as a dummy date for this specific purpose. Restriction lifted from 2003 restricted stock granted and converted into direct own common stock Susan E. Allen, Attorney In Fact 2006-04-05