Artemis Insurance News (Artemis) reported its first quarter results on Tuesday.
The stock was up 5.4% on the day to $13.76 per share.
Artemis shares rose more than 15% over the year.
The company posted a net loss of $2.3 billion for the quarter.
In the third quarter of 2016, Artemis reported $5.5 billion in net losses, a net profit of $1.7 billion and revenue of $721 million.