R. Lindsay Gusso - Jun 17, 2021 Form 4 Insider Report for DIRTT ENVIRONMENTAL SOLUTIONS LTD (DRTTF)

Role: Chief Human Resources Officer
Signature: /s/ Nandini Somayaji, as attorney-in-fact for Lindsay Gusso
Stock symbol: DRTTF
Transactions as of: Jun 17, 2021
Transactions value $: -$48,799
Form type: 4
Date filed: 6/22/2021, 09:53 PM

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	DRTTF	Common Shares	Options Exercise		+27.8K	+142.51%		47.3K	Jun 17, 2021	Direct	F1
transaction	DRTTF	Common Shares	Tax liability	-$48.8K	-13.3K	-28.21%	$3.66^*	33.9K	Jun 17, 2021	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	Restricted Share Units	Options Exercise	$0	-27.8K	-33.33%	$0.00	55.6K	Jun 17, 2021	Common Shares	27.8K		Direct	F1

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

Explanation of Responses:

Id	Content
F1	On June 17, 2020, the reporting person was granted 83,333 restricted share units ("RSUs"), vesting in three equal annual installments beginning on the first anniversary of the grant date. Each RSU represents a conditional right to receive a cash payment equal to the fair market value of one share of common stock of the Issuer (a "Common Share") or, at the Issuer's discretion, a number of Common Shares equal to the number of vested RSUs (or a combination of cash and Common Shares). One-third of the RSUs vested on June 17, 2021 and were converted into Common Stock on a one-to-one basis at the Issuer's discretion.

Content

On June 17, 2020, the reporting person was granted 83,333 restricted share units ("RSUs"), vesting in three equal annual installments beginning on the first anniversary of the grant date. Each RSU represents a conditional right to receive a cash payment equal to the fair market value of one share of common stock of the Issuer (a "Common Share") or, at the Issuer's discretion, a number of Common Shares equal to the number of vested RSUs (or a combination of cash and Common Shares). One-third of the RSUs vested on June 17, 2021 and were converted into Common Stock on a one-to-one basis at the Issuer's discretion.