SEC Insider Transactions from Greffen Mark.

Last updated: 2026-03-14 11:27 UTC | Total transactions: 8

Greffen Mark has filed 8 insider transactions across 1 company since March 2023.

Most recent transaction: a grant/award of 52352 shares of DIRTT ENVIRONMENTAL SOLUTIONS LTD ($DRTTF) on May 15, 2023.

Activity breakdown: 0 open-market purchases and 1 sale.

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Transaction Date Company Ticker Insider Name Title Transaction Type Security Shares Price Shares Owned Following Total Shares Outstanding % of Owned % of Outstanding
May 15, 2023 DIRTT ENVIRONMENTAL SOLUTIONS LTD $DRTTF Greffen Mark Chief Technology Officer A Common Shares 52352 $0.00 227,000.0000 99,826 29.98% 52.44%
May 15, 2023 DIRTT ENVIRONMENTAL SOLUTIONS LTD $DRTTF Greffen Mark Chief Technology Officer S Common Shares 26176 $0.37 200,824.0000 99,826 11.53% 26.22%
March 1, 2023 DIRTT ENVIRONMENTAL SOLUTIONS LTD $DRTTF Greffen Mark Chief Technology Officer M Common Shares 25490 $0.00 167,069.0000 99,826 18.00% 25.53%
March 1, 2023 DIRTT ENVIRONMENTAL SOLUTIONS LTD $DRTTF Greffen Mark Chief Technology Officer F Common Shares 12236 $0.66 154,833.0000 99,826 7.32% 12.26%
March 1, 2023 DIRTT ENVIRONMENTAL SOLUTIONS LTD $DRTTF Greffen Mark Chief Technology Officer M Common Shares 37760 $0.00 192,593.0000 99,826 24.39% 37.83%
March 1, 2023 DIRTT ENVIRONMENTAL SOLUTIONS LTD $DRTTF Greffen Mark Chief Technology Officer F Common Shares 18125 $0.66 174,468.0000 99,826 9.41% 18.16%
March 1, 2023 DIRTT ENVIRONMENTAL SOLUTIONS LTD $DRTTF Greffen Mark Chief Technology Officer M Restricted Share Units 25490 $0.00 25,491.0000 99,826 9999.99% 25.53%
March 1, 2023 DIRTT ENVIRONMENTAL SOLUTIONS LTD $DRTTF Greffen Mark Chief Technology Officer M Restricted Share Units 37760 $0.00 75,522.0000 99,826 99.99% 37.83%