Sorry, I couldn't find pricing data for that day. The closing price for Microsoft (MSFT) on September 28, 2018 was $106.63. It was up 0.2% for the day. The latest price is $510.96.
DATE
OPEN
HIGH
LOW
CLOSE
VOLUME
September 28 2018
$106.46
$106.81
$105.98
$106.63
21,647,800
Daily pricing data for Microsoft dates back to 3/13/1986, and may be incomplete.