THOR INDS INC

Ticker: THO CUSIP: 885160101 Class: Common Stock

WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC's Holding History (CIK: 0001644956)

Note: Option positions (PUT/CALL) are excluded.

Q4 2017

Shares 8,432 Value ($000) $1,271 Avg Close $117.35 Range $103.34 - $132.43

Q3 2017

Shares 7,495 Value ($000) $944 Avg Close $90.78 Range $85.03 - $107.02

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2017	8,432	$1,271	$117.35	$103.34 - $132.43
Q3 2017	7,495	$944	$90.78	$85.03 - $107.02