Sorry, I couldn't find pricing data for that day. The closing price for Microsoft (MSFT) on December 12, 2014 was $40.05. It was up 0.4% for the day. The latest price is $525.82.
DATE
OPEN
HIGH
LOW
CLOSE
VOLUME
December 12 2014
$39.90
$40.71
$39.81
$40.05
34,248,400
Daily pricing data for Microsoft dates back to 3/13/1986, and may be incomplete.