DIRTT Environmental Solutions Ltd. Insider Transaction

Holly Hess Groos, a director at DIRTT Environmental Solutions Ltd., acquired 34,188 Deferred Share Units (DSUs) on September 30, 2026. These DSUs are equivalent to common shares and will settle following cessation of service. The acquisition price was $0.59 per DSU, with the underlying common shares valued at C$0.83 at the time of grant. Following this transaction, Groos owns 270,600 shares. The DSUs are granted under the company's Long Term Incentive Plan and settle in common shares or their cash equivalent.