X0306 4 2010-05-13 0 0001091748 Argo Group International Holdings, Ltd. AGII 0001435222 Bullock Jay Stanley ARGO GROUP INTERNATIONAL HOLDINGS, LTD. 110 PITTS BAY ROAD PEMBROKE, HM 08 D0 BERMUDA 0 1 0 0 Chief Financial Officer Common Stock 2010-05-13 4 F 0 1002 31.76 D 94686 D Common Stock 2011-05-13 4 F 0 1012 30.11 D 93674 D Common Stock 2012-03-15 4 F 0 250 29.65 D 93424 D Common Stock 2012-05-14 4 F 0 662 28.48 D 92762 D Common Stock 2013-03-15 4 F 0 1292 40.08 D 91470 D Common Stock 2014-03-17 4 F 0 2445 45.95 D 89025 D Common Stock 2015-03-16 4 F 0 3785 51.02 D 85240 D Common Stock 2016-02-25 4 F 0 417 56.30 D 84823 D Common Stock 2016-03-14 4 F 0 642 56.31 D 84181 D Common Stock 2016-03-15 4 F 0 2670 56.00 D 81511 D Shares disposed and price per share throughout this Form 4 are shown as of the time of the original transaction. The total shares owned has been adjusted to reflect current holdings, including by reflecting the effect of an adjustment for Argo Group's 10% stock dividends paid on June 17, 2013, March 16, 2015 and June 15, 2016, in each case as applicable. /s/ Craig S. Comeaux, attorney-in-fact 2017-04-07