X0306 4 2017-11-15 0 0001091748 Argo Group International Holdings, Ltd. AGII 0001198704 CASH HARVEY B ARGO GROUP INTERNATIONAL HOLDINGS, LTD. 110 PITTS BAY ROAD PEMBROKE, HM 08 D0 BERMUDA 1 0 0 0 Common Stock 2017-11-15 4 M 0 6655 23.11 A 17733 D Common Stock 2017-11-15 4 M 0 6655 21.90 A 24388 D Common Stock 2017-11-15 4 M 0 6655 33.95 A 31043 D Common Stock 2017-11-15 4 D 0 8857 59.35 D 22186 D Stock Appreciation Rights 23.11 2017-11-15 4 M 0 6655 0.00 D 2018-05-03 Common Stock 6655 0 D Stock Appreciation Rights 21.90 2017-11-15 4 M 0 6655 0.00 D 2019-05-08 Common Stock 6655 0 D Stock Appreciation Rights 33.95 2017-11-15 4 M 0 6655 0.00 D 2020-05-07 Common Stock 6655 0 D Includes the effect of an adjustment for Argo Group's 10% stock dividends paid on June 17, 2013, March 16, 2015 and June 15, 2016. The stock appreciation rights vested on the calendar day immediately preceding Argo Group's 2012 annual general meeting of shareholders. The stock appreciation rights vested on the calendar day immediately preceding Argo Group's 2013 annual general meeting of shareholders. The stock appreciation rights vested on the calendar day immediately preceding Argo Group's 2014 annual general meeting of shareholders. /s/ Craig S. Comeaux, attorney-in-fact 2017-11-16