X0303 4 2010-10-01 0 0001082510 UIL HOLDINGS CORP UIL 0001199577 LAHEY JOHN L 157 CHURCH STREET P. O. BOX 1564 NEW HAVEN CT 06510 1 0 0 0 Common Stock 2010-10-01 4 A 0 200.906 28.4002 A 18561.012 D Restricted Stock Units 28.345 2010-10-01 4 A 0 384.4747 28.345 A 2013-03-22 2013-03-22 Common Stock 384.4747 25611.176 D Phantom Stock Units 28.345 2010-10-01 4 A 0 103.348 28.345 A 1988-08-08 1988-08-08 Common Stock 103.348 6884.360 D Dividend equivalent with respect to restricted stock units deferred pursuant to the UIL Holdings Corporation Deferred Compensation Plan, credited in the form of additional restricted stock units. Generally, restricted stock units credited under the Plan are payable in shares of common stock upon termination of service as a director. Dividend equivalent as with respect to phantom stock units deferred pursuant to the UIL Holdings Corporation Non-Employee Directors Common Stock and Deferred Compensation Plan, credited in the form of additional phantom stock units. Generally, phantom stock units credited under the Plan are payable in shares of common stock upon termination of service as a director. The Staff has designated "08/08/1988" as a dummy date for this specific purpose. Dividend, paid in common stock. Susan E. Allen, Attorney In Fact 2010-10-05