DIRTT Environmental Solutions (DRTTF) grants 36,171 DSUs to director

Rhea-AI Filing Summary

Groos Holyce Hess reported acquisition or exercise transactions in this Form 4 filing.

DIRTT Environmental Solutions director Holyce Hess Groos received a grant of 36,171 deferred share units (DSUs) on Common Shares at a reference price of $0.55 per unit. Following this compensation award, the director holds 196,395 DSUs. Each DSU is economically equivalent to one Common Share and will settle in shares or cash after service with the company ends.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Groos Holyce Hess

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Deferred Share Unit	36,171	$0.55	$20K

Holdings After Transaction: Deferred Share Unit — 196,395 shares (Direct)

Footnotes (1)

1. Each deferred share unit ("DSU") was granted pursuant to the DIRTT Environmental Solutions Ltd. Third Amended and Restated Long Term Incentive Plan and is the economic equivalent of one common share (a "Common Share") of DIRTT Environmental Solutions Ltd. (the "Issuer"). All DSUs settle following the cessation of service and employment with the Issuer (the "Termination Date"). For directors who are subject to taxation in the United States ("US Directors"), the DSUs will settle no later than forty days following the Termination Date. Each DSU will be settled in one Common Share or in the cash equivalent of such Common Shares, calculated based on the closing price of the Common Shares on the day prior to the 30th day following separation from service for US Directors. The price used to calculate the number of DSUs granted was C$0.77, which was the closing price Issuer's Common Shares as reported on the Toronto Stock Exchange on March 30, 2026. The price was converted using the Bank of Canada exchange rate for March 30, 2026 of C$1.3926 = US$1.00.

Key Figures

DSUs granted: 36,171 units Reference grant price: $0.55 per unit DSUs after grant: 196,395 units +2 more

5 metrics

DSUs granted 36,171 units Deferred share units granted on March 31, 2026

Reference grant price $0.55 per unit Transaction price per deferred share unit

DSUs after grant 196,395 units Total deferred share units held following transaction

TSX closing price C$0.77 per share Common Share closing price on March 30, 2026

FX rate used C$1.3926 = US$1.00 Bank of Canada exchange rate on March 30, 2026

Key Terms

Deferred Share Unit, Third Amended and Restated Long Term Incentive Plan, Termination Date, Common Share, +1 more

5 terms

Deferred Share Unit financial

"Each deferred share unit ("DSU") was granted pursuant to the DIRTT Environmental Solutions Ltd. Third Amended and Restated Long Term Incentive Plan"

Third Amended and Restated Long Term Incentive Plan financial

"Each deferred share unit ("DSU") was granted pursuant to the DIRTT Environmental Solutions Ltd. Third Amended and Restated Long Term Incentive Plan"

Termination Date financial

"All DSUs settle following the cessation of service and employment with the Issuer (the "Termination Date")."

Termination date is the specific calendar day when a contract, agreement, option or other legal arrangement stops being in effect and any remaining rights or obligations expire. For investors it matters because that date sets deadlines for exercising rights, receiving payments, closing positions or avoiding penalties—similar to the day a lease or warranty ends, after which parties no longer have the same protections or claims.

Common Share financial

"is the economic equivalent of one common share (a "Common Share") of DIRTT Environmental Solutions Ltd."

A common share is a type of ownership in a company that gives the holder a claim to a portion of the company’s profits and assets. It often comes with voting rights, allowing shareholders to participate in decisions about the company’s direction. For investors, owning common shares can mean potential for growth and income, but also involves a higher level of risk compared to other types of investments.

Bank of Canada exchange rate financial

"The price was converted using the Bank of Canada exchange rate for March 30, 2026 of C$1.3926 = US$1.00."

Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Groos Holyce Hess

(Last) (First) (Middle)

7303 30 STREET SE

(Street)

CALGARY ALBERTA, CANADA T2C1N6

(City) (State) (Zip)

ALBERTA, CANADA

(Country)

2. Issuer Name and Ticker or Trading Symbol
DIRTT ENVIRONMENTAL SOLUTIONS LTD [ DRTTF ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
03/31/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Deferred Share Unit	(1)	03/31/2026		A		36,171		(1)	(1)	Common Shares	36,171	$0.55(2)	196,395	D

Explanation of Responses:

1. Each deferred share unit ("DSU") was granted pursuant to the DIRTT Environmental Solutions Ltd. Third Amended and Restated Long Term Incentive Plan and is the economic equivalent of one common share (a "Common Share") of DIRTT Environmental Solutions Ltd. (the "Issuer"). All DSUs settle following the cessation of service and employment with the Issuer (the "Termination Date"). For directors who are subject to taxation in the United States ("US Directors"), the DSUs will settle no later than forty days following the Termination Date. Each DSU will be settled in one Common Share or in the cash equivalent of such Common Shares, calculated based on the closing price of the Common Shares on the day prior to the 30th day following separation from service for US Directors.

2. The price used to calculate the number of DSUs granted was C$0.77, which was the closing price Issuer's Common Shares as reported on the Toronto Stock Exchange on March 30, 2026. The price was converted using the Bank of Canada exchange rate for March 30, 2026 of C$1.3926 = US$1.00.

	/s/ Fareeha Khan, as attorney-in-fact for Holly Hess Groos	04/02/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

FAQ

What insider transaction did DIRTT ENVIRONMENTAL SOLUTIONS LTD (DRTTF) report?

DIRTT ENVIRONMENTAL SOLUTIONS LTD reported a director receiving 36,171 deferred share units (DSUs) as a compensation grant. These DSUs are linked to Common Shares and increase the director’s total DSU holdings to 196,395, reflecting a routine equity-based award rather than an open-market trade.

How many DIRTT Environmental (DRTTF) deferred share units were granted and at what price?

The director was granted 36,171 deferred share units, with the number calculated using a reference price of $0.55 per unit. A separate footnote states the underlying Common Shares closed at C$0.77 on the Toronto Stock Exchange on March 30, 2026.

What are DSUs in the DIRTT Environmental (DRTTF) Form 4 filing?

Each deferred share unit (DSU) is the economic equivalent of one Common Share of DIRTT Environmental Solutions. DSUs are granted under the company’s Long Term Incentive Plan and are designed as non-cash equity compensation that settles after the director’s service with the company ends.

When will the DIRTT Environmental (DRTTF) DSUs granted to the director be settled?

All DSUs will be settled after the director’s termination of service with the company. For U.S. directors, settlement occurs no later than 40 days after the termination date, in either Common Shares or cash based on a specified share price calculation.

How is the value of DIRTT Environmental (DRTTF) DSUs determined at settlement?

Each DSU will be settled in one Common Share or its cash equivalent. For U.S. directors, the cash value is based on the closing price of Common Shares on the day before the 30th day following separation from service, providing a market-based settlement value.

How was the DIRTT Environmental (DRTTF) DSU grant price calculated in the Form 4?

The number of DSUs granted used a share price of C$0.77, equal to the Toronto Stock Exchange closing price on March 30, 2026. This Canadian dollar price was converted using a Bank of Canada rate of C$1.3926 = US$1.00 to derive the U.S. dollar figure.