X0306 4 2018-01-01 0001620459 James River Group Holdings, Ltd. JRVR 0001335026 Abram J Adam C/O JAMES RIVER GROUP HOLDINGS, LTD. 90 PITTS BAY ROAD PEMBROKE D0 HM 08 BERMUDA 1 0 0 0 Common Shares 2018-01-01 4 F 0 5873 40.01 D 329562 D Common Shares 800 I By Ruth M. Maguire Trust The shares disposed of were withheld by James River Group Holdings, Ltd. for payment of the tax liability incident to the vesting of 19,000 restricted share units on January 1, 2018. /s/ J. Adam Abram 2018-01-02