Form 4 holding
Chief Technology Officer
DIRTT ENVIRONMENTAL SOLUTIONS LTD
- Security class
- Common Shares
- Shares / value
- 200,824
- Estimated value
- $70,288
- Report date
- 15 May 2023
- Price
- $0.3500
- Ownership
- Direct
Mark Greffen - Chief Technology Officer at DIRTT ENVIRONMENTAL SOLUTIONS LTD
Issuer-level insider activity
- Role
- Chief Technology Officer
- Issuer ticker
- DRTTF on OTC
- Entity type
- Individual
- Source filing history
- Open source filing history
Identity
Names, identifiers, and filing context for this profile.
1 identity field
Source evidence
Original filing metadata and source links for verification.
1 source field
No buys or sells have been reported by Mark Greffen since 28 Aug 2025
Reported holdings for Mark Greffen in DIRTT ENVIRONMENTAL SOLUTIONS LTD
Transaction history for Mark Greffen in DIRTT ENVIRONMENTAL SOLUTIONS LTD
| Sym | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares after | Date | Ownership |
|---|
* marks a reported price that did not pass the local price check.