X0306 4 2018-02-23 false 0001096385 VECTREN CORP VVC 0001584184 Hardwick M Susan P.O. BOX 209 EVANSVILLE IN 47708 false true false false EVP & Chief Financial Officer Common Stock 2018-02-23 4 M false 9200.00 A 9200.00 D Common Stock 2018-02-23 4 D false 9200.00 62.55 D 0.00 D Common Stock 2018-02-23 4 M false 6151.3829 A 6151.3829 D Common Stock 2018-02-23 4 D false 6151.3829 62.55 D 0.00 D Phantom Stock 0.00 2018-02-23 4 M false 9200.00 D Common Stock 9200.00 0.00 D Phantom Stock 0.00 2018-02-23 4 A false 6151.3829 0.00 A Common Stock 6151.3829 6151.3829 D Phantom Stock 0.00 2018-02-23 4 M false 6151.3829 D Common Stock 6151.3829 0.00 D On February 23, 2018, the stock unit award vested and will be settled for cash based on the average closing price of Vectren's common stock for the three consecutive trading days immediately preceding ten days before the Committee certified results which occurred on February 23, 2018. The stock unit award was acquired pursuant to the Vectren Corporation At-Risk Compensation Plan and is subject to forfeiture as provided by the plan and the plan agreement. The lifting of restrictions and the forfeitability provisions is dependent upon performance during a measuring period from January 1, 2015 through December 31, 2017 and, subject to certain enumerated circumstances, and continued employment until certification by the Compensation Committee, which occurred February 23, 2018. The board of directors approved the acquisition in accordance with Rule 16b-3(d). This represents the effect of the accumulation of dividends and the performance adjustment relating to the January 1, 2015 grant under the Vectren Corporation At Risk Compensation Plan. This grant is exempt under Section 16b-3 and was previously approved by the Board of Directors. This grant is subject to forfeiture as provided under the plan and plan agreement. /s/Ronald E. Christian 2018-02-23