Aron R. English - 29 Aug 2025 Form 4 Insider Report for DIRTT ENVIRONMENTAL SOLUTIONS LTD (DRTTF)

Role: 10%+ Owner
Signature: /s/ Fareeha Khan, as attorney-in-fact for Aron English
Issuer symbol: DRTTF
Transactions as of: 29 Aug 2025
Net transactions value: -$94,715
Form type: 4
Filing time: 02 Sep 2025, 17:00:05 UTC
Previous filing: 31 Jul 2025
Next filing: 13 Nov 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
English Aron R.	10%+ Owner	7303 30 STREET SE, CALGARY, ALBERTA, CANADA	/s/ Fareeha Khan, as attorney-in-fact for Aron English	02 Sep 2025	0001770436

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	DRTTF	Common Shares	Options Exercise		+773,026	+10%		8,265,969	29 Aug 2025	Direct	F1
transaction	DRTTF	Common Shares	Disposed to Issuer	$94,715	-182,144	-2.2%	$0.5200	8,083,825	29 Aug 2025	Direct

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	DRTTF	Deferred Share Unit	Options Exercise		-773,026	-100%		0	29 Aug 2025	Common Shares	773,026		Direct	F1

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	The 590,882 deferred share units ("DSUs") granted pursuant to the DIRTT Environmental Solutions Ltd. Second Amended and Restated Long Term Incentive Plan or its predecessor plan were settled in common shares ("Common Shares") of DIRTT Environmental Solutions Ltd. (the "Issuer") on a one-for-one basis. The 182,144 DSUs granted pursuant to the Deferred Share Unit Plan for Non-Employee Directors were settled in cash equal to the closing price of one Common Share on August 28, 2025 for each DSU, as reported on the Toronto Stock Exchange.

Content

The 590,882 deferred share units ("DSUs") granted pursuant to the DIRTT Environmental Solutions Ltd. Second Amended and Restated Long Term Incentive Plan or its predecessor plan were settled in common shares ("Common Shares") of DIRTT Environmental Solutions Ltd. (the "Issuer") on a one-for-one basis. The 182,144 DSUs granted pursuant to the Deferred Share Unit Plan for Non-Employee Directors were settled in cash equal to the closing price of one Common Share on August 28, 2025 for each DSU, as reported on the Toronto Stock Exchange.