** Shares of commercial insurer W. R. Berkley WRB.N fall 1.57% to $67.50

** Argus Research cuts PT on WRB to $76 from $82, which is still a 9.7% upside to the stock's last close

** Co posted Q4 net income of $450 million, or $1.13 per share, a decrease of 21% year on year

** 3 of 18 brokerages rate the stock "buy" or higher, 11 "hold" and 4 "sell"; their median PT is $68.50

** Including session's move, WRB up 17.2% in the last 12 months

(Reporting by Pragyan Kalita in Bengaluru)

((Pragyan.Kalita@thomsonreuters.com))