X0306 4 2015-12-07 1 0000355627 CTI GROUP HOLDINGS INC CTIG 0001196643 GREIN THOMAS W C/O CTI GROUP (HOLDINGS) INC. 333 NORTH ALABAMA STREET, SUITE, 240 INDIANAPOLIS IN 46204 1 0 0 0 Stock Option (right to buy) 0.34 2015-12-07 4 D 0 100000 0.27 D 2017-02-15 Class A Common Stock 100000 0 D Stock Option (right to buy) 0.09 2015-12-07 4 D 0 50000 0.52 D 2019-10-06 Class A Common Stock 50000 0 D Restricted Stock Units 2015-12-07 4 D 0 100000 0.61 D Class A Common Stock 100000 0 D These stock options were disposed of pursuant to the Agreement and Plan of Merger, dated October 18, 2015, by and among CTI Group (Holdings) Inc. (the "Issuer"), Enghouse Systems Limited ("Enghouse") and New Acquisitions Corporation ("Purchaser"), a wholly owned subsidiary of Enghouse (the "Merger Agreement"), pursuant to which, among other things, Purchaser was merged (the "Merger") with and into the Issuer on December 7, 2015 following the completion by Purchaser of a cash tender offer to purchase all of the issued and outstanding shares of the Issuer's Class A common stock a purchase price of $0.61 per share (the "Offer Price"). Pursuant to the terms of the Merger Agreement, as a result of and as of the effective time of the Merger, each stock option (whether or not then vested or exercisable) was cancelled and converted into the right to receive the excess of the Offer Price per share over the per-share exercise price, subject to applicable tax withholding. In accordance with the Agreement and Plan of Merger, the reporting person resigned as a director of the Issuer effective as of the effective time of the Merger. Pursuant to the terms of the Merger Agreement, as a result of and as of the effective time of the Merger, each restricted stock unit (whether or not then vested) was cancelled and converted into the right to receive the Offer Price per share multiplied by the total number of shares subject to such restricted stock unit, subject to applicable tax withholding. /s/ Thomas W. Grein 2015-12-08