DIRTT Environmental (DRTTF) director reports 29,953 DSU grant

Rhea-AI Filing Summary

DIRTT Environmental Solutions Ltd. reported a Form 4 transaction for director Scott Ryan involving a grant of deferred share units. On 12/31/2025, the director acquired 29,953 deferred share units, each economically equivalent to one common share of the company. The price used to calculate the number of units was C$0.90, the Toronto Stock Exchange closing price on December 30, 2025, converted using a Bank of Canada exchange rate of C$1.3693 = US$1.00, corresponding to US$0.66 per unit. Following this grant, the director beneficially owned 983,991 derivative securities on a direct basis.

These deferred share units were issued under the company’s Third Amended and Restated Long Term Incentive Plan. All units settle after service and employment with the company end. For directors subject to U.S. taxation, settlement occurs no later than forty days after the termination date, in either common shares or their cash equivalent, based on the closing share price on the day prior to the 30th day following separation from service.

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

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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^*

Ryan Scott C

(Last) (First) (Middle)

7303 30 STREET SE

(Street)

CALGARY A0 T2C1N6

(City) (State) (Zip)

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)

3. Date of Earliest Transaction (Month/Day/Year)
12/31/2025

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

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

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

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)	12/31/2025		A		29,953		(1)	(1)	Common Shares	29,953	$0.66(2)	983,991	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$0.90, which was the closing price Issuer's Common Shares as reported on the Toronto Stock Exchange on December 30, 2025. The price was converted using the Bank of Canada exchange rate for December 30, 2025 of C$1.3693 = US$1.00.

	/s/ Fareeha Khan, as attorney-in-fact Scott Ryan	01/05/2026
	** 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).
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FAQ

What insider transaction did DRTTF report in this Form 4?

The company reported that director Scott Ryan acquired 29,953 deferred share units (DSUs) on 12/31/2025 under DIRTT Environmental Solutions Ltd.’s long-term incentive plan.

How many DIRTT Environmental (DRTTF) deferred share units does the director hold after this grant?

After the reported transaction, the director beneficially owned 983,991 derivative securities, consisting of deferred share units held on a direct basis.

What are deferred share units (DSUs) for DIRTT Environmental Solutions Ltd.?

Each deferred share unit is granted under the company’s Third Amended and Restated Long Term Incentive Plan and is the economic equivalent of one common share of DIRTT Environmental Solutions Ltd.

How is the number of DSUs for DRTTF’s director grant calculated?

The number of 29,953 DSUs was calculated using a price of C$0.90, which was the Toronto Stock Exchange closing price of the company’s common shares on December 30, 2025, converted at a Bank of Canada exchange rate of C$1.3693 = US$1.00, corresponding to US$0.66 per DSU.

When do DIRTT Environmental (DRTTF) deferred share units settle for directors?

All DSUs settle after the director’s termination date with the company. For U.S. directors, the units will settle no later than forty days after the termination date.

In what form are DIRTT Environmental DSUs paid out to the director?

Each deferred share unit will be settled in either one common share of DIRTT Environmental Solutions Ltd. or the cash equivalent, calculated using the closing price of the common shares on the day prior to the 30th day following separation from service for U.S. directors.