Form
SCHEDULE 13D/A
Active or control-oriented beneficial ownership filing.
22NW Fund, LP - 10 Dec 2025 SCHEDULE 13D/A Report for DIRTT ENVIRONMENTAL SOLUTIONS LTD Common Shares, without par value (DRTTF)
- Filing manager
- 22NW Fund, LP
- Reporting owner
- English Aron R.
- Beneficially owned shares
- 58,038,870 shares
- Class ownership
- 30%
- Large-stake signal
-
Ownership
30%
Beneficial ownership of this reported class.
Shares
58,038,870 shares
Shares beneficially owned as disclosed.
Event date
10 Dec 2025
Date tied to the ownership event or amendment.
Accepted by SEC
12 Dec 2025
EDGAR acceptance date.
How to read this large-stake filing
- Schedule 13D/G filings focus on beneficial ownership stakes, not a full portfolio.
- Compare this filing with the holder history and issuer page before treating the percentage as a current position.
- Use amendments to understand whether the disclosed stake increased, decreased, or changed reporting status.
- Symbol
- DRTTF
- Shares outstanding
- 191,547,426 shares
- Form type
- SCHEDULE 13D/A
- Accepted by SEC
- 12 Dec 2025, 18:28:46 UTC
- Event date
- 10 Dec 2025
- Previous filing
- 09 Oct 2025
- Next filing
- 18 Feb 2026
- SEC filing
- View on sec.gov
Ownership signal
2 signals
Subject security
2 source fields
Source evidence
6 source fields
Key filing fact
22NW Fund, LP disclosed 30% ownership in DIRTT ENVIRONMENTAL SOLUTIONS LTD Common Shares, without par value (DRTTF) on 10 Dec 2025.
Key facts
- 22NW Fund, LP filed SCHEDULE 13D/A for DIRTT ENVIRONMENTAL SOLUTIONS LTD Common Shares, without par value (DRTTF).
- Disclosed ownership: 30%.
- Date of event: 10 Dec 2025.
Change
- Previous schedule filing date: 09 Oct 2025.
- Current filing was accepted on 12 Dec 2025, 18:28.
Research use
- This page turns one Schedule 13D/G filing into a quick large-stake read before the raw reporting-person rows.
- Use the linked SEC filing as the source of truth for ownership percentages, shares, and reporting-party details.
Evidence
Backed by Schedule 13D/13G
See Original Filing
Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.
Reporting persons
Disclosed reporting parties (8)
Names, ownership percentages, voting power, signatures, titles, and CIKs as disclosed in this Schedule 13D/G filing.
| Name | Ownership | Shares owned | Sole voting power | Shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| 22NW Fund, LP | 26% | 49,955,045 | 49,955,045 | 0 | /s/ Aron R. English | Aron R. English, Manager of 22NW Fund GP, LLC, its General Partner | 0001640809 |
| 22NW, LP | 26% | 49,955,045 | 49,955,045 | 0 | /s/ Aron R. English | Aron R. English, President and Sole Shareholder of 22NW GP, Inc., its General Partner | 0001694297 |
| 22NW Fund GP, LLC | 26% | 49,955,045 | 49,955,045 | 0 | /s/ Aron R. English | Aron R. English, Manager | 0001770575 |
| 22NW GP, Inc. | 26% | 49,955,045 | 49,955,045 | 0 | /s/ Aron R. English | Aron R. English, President and Sole Shareholder | 0001783663 |
| English Aron R. | 30% | 58,038,870 | 58,038,870 | 0 | /s/ Aron R. English | ARON R. ENGLISH | 0001770436 |
| Hirai-Hadley Bryson | 0% | 2,272 | 2,272 | 0 | /s/ Bryson O. Hirai-Hadley | BRYSON O. HIRAI-HADLEY | 0001888106 |
| Jones Alexander B | 0% | 2,181 | 2,181 | 0 | /s/ Alexander B. Jones | ALEXANDER B. JONES | 0001888602 |
| Zarate Adrian R | 0.01% | 25,875 | 25,875 | 0 | /s/ Adrian R. Zarate | ADRIAN R. ZARATE | 0002076027 |
CIK / CUSIP context first