Quick Takeaways
- Mark Greffen has 1 issuer position tracked on this page.
- Estimated disclosed ownership value: $70,288.
- Recent insider filing activity is available below.
Insider Trading & Ownership of Mark Greffen
- Location
- Calgary, Alberta, Canada
- Summary
- The estimated net worth of Mark Greffen is at least $70,288 dollars as of 17 May 2023. Mark Greffen is the Chief Technology Officer of DIRTT ENVIRONMENTAL SOLUTIONS LTD and owns shares of DIRTT ENVIRONMENTAL SOLUTIONS LTD (DRTTF) stock worth about $70.3K.
- Signature
- /s/ Nandini Somayaji, as attorney-in-fact for Mark Greffen
- All Insider Reports
- All Insider Reports
Follow Filing Activity
Follow Mark Greffen and return when a new Insider Trading filing changes the record on this page.
This uses the existing product follow flow to surface future filing-backed changes without guessing what they mean.
What Changed
- Largest disclosed position: DIRTT ENVIRONMENTAL SOLUTIONS LTD ($70,288).
- Past-year value change for that position: .
Why This Matters
- This page translates Forms 3/4/5 into a quick ownership context before you inspect each transaction row.
- You can cross-check role, issuer, and filing chronology directly against the SEC source.
Source Evidence
Filed on Form 4
See Original Filing
Insider ownership context is sourced from SEC Forms 3, 4, and 5.
Ownership of Mark Greffen
| Symbol | Company | Relationship | Holdings Value | Past Year Net Change | Change % | Report Period |
|---|---|---|---|---|---|---|
| DRTTF | DIRTT ENVIRONMENTAL SOLUTIONS LTD | Chief Technology Officer | $70,288 | 15 May 2023 |
Insider Transactions Reported by Mark Greffen:
| Sym | Company | Class | Transaction | % | Value $ | * Price $ | Shares | Shares After | Date | Ownership |
|---|
* An asterisk sign (*) next to the price indicates that the price is likely invalid.