X0306 4 2015-04-01 0 0001082510 UIL HOLDINGS CORP UIL 0001199583 NICHOLAS RICHARD J 157 CHURCH STREET P. O. BOX 1564 NEW HAVEN CT 06510 0 1 0 0 Exec VP & CFO Deferred Stock Units 51.195 2015-04-01 4 A 0 528.637 51.195 A 2013-05-02 2013-05-02 Common Stock 528.637 63175.664 D Deferred Stock Units includes compensation that has been deferred and is deemed to be invested in deferred stock units pursuant to The United Illuminating Company Deferred Compensation Plan (DCP). Deferred Stock Units are credited quarterly with dividend equivalents and are paid in the form of the Issuer's Common Stock upon distribution. Patricia C. Cosgel, (attorney-in-fact) 2015-04-06