# EDGAR Filing Document

**Accession Number:** 0001131383
**File Stem:** 0001171843-26-004196
**Filing Date:** 2026-6
**Character Count:** 5751
**Document Hash:** aab2745ac614686dffc8b860b983440f
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001171843-26-004196.hdr.sgml**: 20260618

**ACCESSION NUMBER**: 0001171843-26-004196

**CONFORMED SUBMISSION TYPE**: 6-K

**PUBLIC DOCUMENT COUNT**: 2

**CONFORMED PERIOD OF REPORT**: 20260618

**FILED AS OF DATE**: 20260618

**DATE AS OF CHANGE**: 20260618

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** STANTEC INC
- **CENTRAL INDEX KEY:** 0001131383
- **STANDARD INDUSTRIAL CLASSIFICATION:** SERVICES-ENGINEERING SERVICES [8711]
- **ORGANIZATION NAME:** 07 Trade & Services
- **EIN:** 000000000

**FILING VALUES:**
- **FORM TYPE:** 6-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-32562
- **FILM NUMBER:** 261101780

**BUSINESS ADDRESS:**
- **STREET 1:** 300 10220 103 AVENUE NW
- **STREET 2:** EDMONTON ALBERTA T5J 0K4 CANADA
- **CITY:** EDMONTON
- **STATE:** A0
- **ZIP:** 00000
- **BUSINESS PHONE:** 780-917-7000

**MAIL ADDRESS:**
- **STREET 1:** 300 10220 103 AVENUE NW
- **CITY:** EDMONTON, ALBERTA
- **STATE:** A0
- **ZIP:** 00000

#### SECURITIES AND EXCHANGE COMMISSION

#### Washington, DC 20549

### Form 6-K

#### Report of Foreign Private Issuer

#### Pursuant to Rule 13a-16 or 15d-16 of

#### the Securities Exchange Act of 1934
For the Month of: June, 2026 Commission File Number: 001-32562

## STANTEC INC.

#### (Name of Registrant)

#### 300-10220 103 Avenue NW

#### Edmonton, Alberta

#### Canada T5J 0K4

#### (Address of Principal Executive Offices)
Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F:

Form 20-F ☐&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Form 40-F ☒

#### SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

---

| | | |
|:---|:---|:---|
|  | STANTEC INC. | STANTEC INC. |
| Date: June 18, 2026 | By: | /s/ Vito Culmone |
|  |  | Name: Vito Culmone |
|  |  | Title: Executive Vice President and CFO |

---

#### EXHIBIT INDEX

---

| | |
|:---|:---|
| **Exhibit** | **Description of Exhibit** |
| [99.1](exh_991.htm) | [Material Change Report](exh_991.htm) |

---

## Exhibit 99.1

**Exhibit 99.1**

#### FORM 51-102F3

#### MATERIAL CHANGE REPORT
&nbsp;&nbsp;&nbsp;&nbsp;**1.** **Name and Address of Company:** 

Stantec Inc. ("**Stantec**" or the "**Company**")

10220-103 Avenue NW, Suite 300

Edmonton, AB T5J 0K4

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;2. Date of Material Change:

June 17, 2026.

&nbsp;&nbsp;&nbsp;&nbsp;3. News Release:

A news release was issued by Stantec and disseminated through the facilities of a recognized newswire service on June 17, 2026.

&nbsp;&nbsp;&nbsp;&nbsp;4. Summary of Material Change:

Stantec announced the retirement of Gordon A. Johnston as president and chief executive officer effective October 1, 2026, and the appointment of Susan Reisbord as the next president and chief executive officer to take effect on October 1, 2026.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;5. Full Description of Material Change:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**5.1** **Full Description of Material Change:** 

After leading Stantec for eight-and-a-half years through a period of significant transformation and growth, Gord Johnston will retire as president and executive officer effective October 1, 2026. Mr. Johnston will remain on the Board of Directors of Stantec Inc., taking on the role of vice chair. Susan Reisbord, currently chief operating officer of the North America business, has been appointed as the next president and chief executive officer, such appointment to take effect on October 1, 2026. Ms. Reisbord will also join the Board of Directors of Stantec Inc. effective October 1, 2026. Susan Reisbord brings more than 30 years of experience in the industry. After joining Stantec in 2021 with the acquisition of Cardno, where she was the CEO of Cardno Inc., Ms Reisbord became the business operating unit leader for Stantec's Environmental Services business line. In 2025, Ms. Reisbord was promoted to chief operating officer for North America, the company's largest geographic operating unit.

This transition is the result of a long-standing, Board-led succession plan and reflects the consistency of the Company's leadership platform and Stantec's unchanged focus on client relationships, project delivery, and operations.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;5.2 Disclosure for Restructuring Transactions:

Not applicable.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;6. Reliance on subsection 7.1(2) of National Instrument 51-102:

This Report is not being filed on a confidential basis in reliance on subsection 7.1(2) of National Instrument 51-102.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;7. Omitted Information:

No information has been omitted on the basis that it is confidential information.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;8. Executive Officer:

The following officer of the Corporation is knowledgeable about this material change report and may be contacted by the securities regulatory authorities:

Paul J. D. Alpern

Executive Vice President, General Counsel & Corporate Secretary

10220-103 Avenue NW, Suite 300

Edmonton, AB T5J 0K4

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(780) 917-7022

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;9. Date of Report:

June 18, 2026.