X0306 4 2017-10-10 1 0001024657 WEST CORP WSTC 0001185539 BARKER THOMAS B WEST CORPORATION 11808 MIRACLE HILLS DRIVE OMAHA NE 68154 1 1 0 0 Chairman and CEO Common Stock 2017-10-10 4 D 0 1265574 23.50 D 0 D Common Stock 2017-10-10 4 D 0 47456 23.50 D 0 I By Thomas B. Barker Family Foundation Stock Option (Right to Buy) 25.52 2017-10-10 4 D 0 577968 D 2022-03-30 Common Stock 577968 0 D Stock Option (Right to Buy) 33.52 2017-10-10 4 D 0 192656 D 2022-03-30 Common Stock 192656 0 D Deferred Stock Units 2017-10-10 4 D 0 396430.7653 D Common Stock 396430.7653 0 D Represents shares of common stock that were cancelled and converted into the right to receive $23.50 per share pursuant to the merger agreement among the Issuer, Mount Olympus Holdings, Inc. and Olympus Merger Sub, Inc., dated as of May 9, 2017 (the "Merger Agreement"). The right to receive the merger consideration with respect to 300,000 of the shares remains subject to certain vesting conditions. Pursuant to the Merger Agreement, this option was cancelled as of October 10, 2017 in exchange for no consideration. Pursuant to the Merger Agreement and subject to the terms of the Issuer's Nonqualified Deferred Compensation Plan, as of the effective date of the merger, each deferred stock unit was cancelled and converted into the notional right to receive an amount of cash, equal to the product of (i) the number of shares of the Issuer's common stock issuable upon conversion of such deferred stock unit multiplied by (ii) $23.50 per share. /s/ Thomas B. Barker (signed by Deneen Shadewald as Power of Attorney for Reporting Person) 2017-10-12