X0306 4 2018-12-17 0001620459 James River Group Holdings, Ltd. JRVR 0001626706 Schmitzer Richard C/O JAMES RIVER GROUP HOLDINGS, LTD. 90 PITTS BAY ROAD PEMBROKE D0 HM 08 BERMUDA 0 1 0 0 Pres. & CEO - E&S Lines Sgmt Common Shares 2018-12-17 4 F 0 2148 36.45 D 126519 D The shares disposed of were withheld by James River Group Holdings, Ltd. for payment of the tax liability incident to the vesting of 4,762 restricted share units on December 17, 2018. /s/ Richard Schmitzer 2018-12-18