X0306 4 2016-01-29 0001111711 NISOURCE INC/DE NI 0001361676 Campbell Robert Dale 801 E 86TH AVENUE MERRILLVILLE IN 46410-6272 1 EVP, Corporate Affairs & HR Common Stock 2016-01-29 4 A 0 21418 21.01 A 257406.4463 D Common Stock 10637.6342 I 401(k) Plan Includes performance share units granted on January 29, 2016. These units are scheduled to vest three years after the date of grant and upon satisfaction of performance measures approved by the Compensation Committee. Includes shares acquired through the NiSource Inc. Retirement Savings Plan through January 29, 2016. Samuel K. Lee, attorney-in-fact for Robert D. Campbell 2016-02-01