Mark Greffen Dirtt Environmental Solutions LTD (DRTT) insider trading activity

Mark Greffen is Chief Technology Officer of DIRTT ENVIRONMENTAL SOLUTIONS LTD. Currently has a direct ownership of 200,824 shares of DRTT, which is worth approximately $66,271. The most recent transaction as insider was on May 15, 2023, when has been sold 26,176 shares (Common Shares) at a price of $0.37 per share, resulting in proceeds of $9,685. This information was disclosed in a Form 4 filing with the Securities and Exchange Commission (SEC).

Shares Held (Direct Ownership) 201K

0% 3M change

0% 12M change

Total Value Held $66,271

Mark Greffen Transaction History

Date	Transaction	Value	Shares Traded	Shares Held
May 15 2023	SELL Open market or private sale	$9,685 $0.37 p/Share	26,176 Reduced 11.53%	200,824 Common Shares
May 15 2023	BUY Grant, award, or other acquisition	-	52,352 Added 18.74%	227,000 Common Shares
Mar 01 2023	SELL Payment of exercise price or tax liability	$20,038 $0.66 p/Share	30,361 Reduced 14.82%	174,468 Common Shares
Mar 01 2023	BUY Exercise of conversion of derivative security	-	63,250 Added 24.72%	192,593 Common Shares
Nov 30 2022	BUY Grant, award, or other acquisition	$3,716 $0.32 p/Share	11,615 Added 7.58%	141,579 Common Shares
Jun 17 2022	SELL Payment of exercise price or tax liability	$26,070 $0.94 p/Share	27,734 Reduced 17.59%	129,964 Common Shares
Jun 17 2022	BUY Exercise of conversion of derivative security	-	57,778 Added 26.81%	157,698 Common Shares
Mar 01 2022	SELL Payment of exercise price or tax liability	$40,164 $1.88 p/Share	21,364 Reduced 17.61%	99,920 Common Shares
Mar 01 2022	BUY Exercise of conversion of derivative security	-	25,490 Added 19.95%	102,268 Common Shares
Mar 01 2022	BUY Grant, award, or other acquisition	-	19,016 Added 14.85%	109,048 Common Shares
Sep 28 2021	SELL Sale (or disposition) back to the issuer	$6,886 $3.23 p/Share	2,132 Reduced 2.75%	75,403 Performance Share Units
Sep 28 2021	BUY Grant, award, or other acquisition	-	2,132 Added 2.68%	77,535 Performance Share Units
Jun 17 2021	SELL Payment of exercise price or tax liability	$100,948 $3.64 p/Share	27,733 Reduced 27.29%	73,894 Common Shares
Jun 17 2021	BUY Exercise of conversion of derivative security	-	57,777 Added 36.25%	101,627 Common Shares

Mark Greffen

Chief Technology Officer

Calgary, A0

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