Sorry, I couldn't find pricing data for that day. The closing price for Tesla (TSLA) on July 28, 2017 was $22.34. It was down 0.5% for the day. The latest price is $239.43.
DATE
OPEN
HIGH
LOW
CLOSE
VOLUME
July 28 2017
$22.46
$22.64
$22.17
$22.34
73,206,207
Daily pricing data for Tesla dates back to 6/29/2010, and may be incomplete.