Sec Form 4 Filing - Noll Shaun @ DIRTT ENVIRONMENTAL SOLUTIONS LTD - 2023-12-04

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

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, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person Noll Shaun 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 X __ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) 7303 30 STREET SE, 3. Date of Earliest Transaction (MM/DD/YY) 12/04/2023 (Street) CALGARY, A0T2C1N6 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) _____ Form filed by One Reporting Person __ X __ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 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 Common Shares 12/01/2023 J( 1 ) 4,996,844 D 0 I ( 2 ) By 726 BC LLC Common Shares 12/01/2023 J( 1 ) 11,928,214 D 0 I ( 3 ) By 726 BF LLC Common Shares 12/01/2023 P 3,939,925 A $ 0.2813 ( 4 ) 22,185,432 I ( 5 ) WWT Opportunity #1 LLC Common Shares 10,157 D

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 (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 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 (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Re ported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: 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

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Noll Shaun 7303 30 STREET SE CALGARY, A0T2C1N6 X X Briger Peter L JR 1345 AVENUE OF THE AMERICAS 46TH FLOOR NEW YORK, NY10105 Former member of 10% group. 726 BC LLC 455 NORTH CITY FRONT PLAZA DRIVE SUITE 1730 CHICAGO, IL60611 Former member of 10% group. Briger Matthew 455 NORTH CITY FRONT PLAZA DRIVE SUITE 1730 CHICAGO, IL60611 Former member of 10% group. 726 BF LLC 314 LYTTON AVENUE, SUITE 200 PALO ALTO, CA94301 Former member of 10% group. Signatures /s/ Shaun Noll 12/05/2023 Signature of Reporting Person Date /s/ Shaun Noll, attorney-in-fact for Peter Briger 12/05/2023 Signature of Reporting Person Date /s/ Shaun Noll, Chief Investment Officer and President of 726 BF LLC 12/05/2023 Signature of Reporting Person Date /s/ Shaun Noll, attorney-in-fact for Matthew Briger 12/05/2023 Signature of Reporting Person Date /s/ Shaun Noll, Chief Investment Officer and President of 726 BC LLC 12/05/2023 Signature of Reporting Person Date

Explanation of Responses:

( 1 )On December 1, 2023: 726 BF LLC ("726 BF") contributed 11,928,214 DIRTT Environmental Solutions Ltd. common shares (the "Common Shares"), no par value, to a newly-formed LLC, WWT Opportunity #1 LLC ("WWT1"); 726 BC LLC ("726 BC") contributed 4,996,844 Common Shares to WWT1; and Shaun Noll contributed 1,320,449 Common Shares to WWT1. ( 2 )Peter Briger, as the Manager of 726 BF, may have been deemed to beneficially own the Common Shares held by 726 BF. Mr. Noll was delegated power to dispose of the securities owned by 726 BF and, accordingly, Mr. Noll may have been deemed to beneficially own the Common Shares held by 726 BF for the purposes of Section 13(d) of the Securities Exchange Act of 1934 (the "Exchange Act"). This Form 4 shall not be deemed an admission that Mr. Noll was, for purposes of Section 16 of the Exchange Act, a beneficial owner of Common Shares held by 726 BF. ( 3 )Matthew Briger, as the Manager of 726 BC, may be deemed to beneficially own the shares of the Issuer owned directly by 726 BC. Mr. Noll was delegated power to dispose of the securities owned by 726 BC and, accordingly, Mr. Noll may have been deemed to beneficially own the Common Shares held by 726 BC for the purposes of Section 13(d) of the Exchange Act. This Form 4 shall not be deemed an admission that Mr. Noll was, for purposes of Section 16 of the Exchange Act, a beneficial owner of Common Shares held by 726 BC. ( 4 )WWT1 purchased these Common Shares from a third party for CA$0.38 per Common Share. The price of US$0.2813 per Common Share reported above reflects a daily exchange rate of CA$1.3507 per US dollar on December 1, 2023, as reported by the Bank of Canada on December 4, 2023. ( 5 )Mr. Noll, as the Managing Member of WWT1, may be deemed a beneficial owner of Common Shares held by WWT1, but disclaims such beneficial ownership except to the extent of his pecuniary interest therein.

Remarks: Each of Peter Briger, 726 BF, Matthew Briger and 726 BC has ceased to be a beneficial owner of Common Shares and is no longer subject to Section 16.

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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