Sorry, I couldn't find pricing data for that day. The closing price for Microsoft (MSFT) on August 28, 2015 was $38.49. It was up 1.2% for the day. The latest price is $412.61.
DATE
OPEN
HIGH
LOW
CLOSE
VOLUME
August 28 2015
$38.03
$38.68
$38.02
$38.49
28,246,700
Daily pricing data for Microsoft dates back to 3/13/1986, and may be incomplete.