DIRTT ENVIRONMENTAL SOLUTION

Ticker: DRTTF CUSIP: 25490H106 Class: FGC

BLAIR WILLIAM & CO/IL's Holding History (CIK: 0000902367)

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

Q4 2022

Shares 25,850 Value ($000) $14 Avg Close $0.36 Range $0.20 - $0.76

Q2 2020

Shares 10,000 Value ($000) $12 Avg Close $1.20 Range $0.83 - $1.78

Q1 2020

Shares 10,000 Value ($000) $10 Avg Close $2.29 Range $0.71 - $3.48

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2022	25,850	$14	$0.36	$0.20 - $0.76
Q2 2020	10,000	$12	$1.20	$0.83 - $1.78
Q1 2020	10,000	$10	$2.29	$0.71 - $3.48