DIRTT ENVIRONMENTAL SOLUTION

Ticker: DRTTF CUSIP: 25490H106 Class: FGC

Swiss National Bank's Holding History (CIK: 0001582202)

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

Q1 2020
Shares 162,600 Value ($000) $161 Avg Close $2.29 Range $0.71 - $3.48
Q4 2019
Shares 162,600 Value ($000) $532 Avg Close $3.80 Range $3.01 - $4.96