Share prices closed the session lower, with investors unloading high-technology shares to pocket gains following a recent surge, dealers said. Sentiment here was also dampened by caution before US technology companies such as Intel and IBM release their latest earnings reports this week, and by the strengthening of the yen. The Nikkei 225 Stock Average finished the day down 186.92 points or 1.1 pct at 16,268.03, off a low of 16,221.59. On Friday, the blue-chip index surged to 16,454.95, its highest close since Sept 20, 2000. The broader TOPIX index of all First Section shares shed 11.54 points or 0.7 pct at 1,670.15, off a low of 1,661.64. Losers beat gainers 852 to 744, with 73 issues unchanged. Volume fell to 2.17 bln shares from 2.30 bln Friday.