stn-20251231

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 40-F

☐ REGISTRATION STATEMENT PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934

☒ ANNUAL REPORT PURSUANT TO SECTION 13(a) OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the fiscal year ended December 31, 2025 Commission File Number: 001-32562

STANTEC INC.

(Exact name of Registrant as specified in its charter)

(Translation of Registrant’s name into English (if applicable))

Canada

(Province or other jurisdiction of incorporation or organization)

8711

(Primary Standard Industrial Classification Code Number (if applicable))

98-0601423

(I.R.S. Employer Identification Number (if applicable))

10220-103 Avenue NW, Suite 300, Edmonton, Alberta, Canada T5J 0K4, (780) 917-7000

(Address and telephone number of Registrant’s principal executive offices)

Stantec Consulting Services Inc., 410 17th Street, Suite 1400, Denver, CO 80202-4427, (303) 295-1717

(Name, address (including zip code) and telephone number (including area code) of agent for service in the United States)

Securities registered or to be registered pursuant to Section 12(b) of the Act.


Title of each class	Trading Symbol(s)	Name of each exchange on which registered

Common Shares	STN	New York Stock Exchange

Securities registered or to be registered pursuant to Section 12(g) of the Act.

None.

(Title of Class)

Securities for which there is a reporting obligation pursuant to Section 15(d) of the Act.

None.

(Title of Class)

For annual reports, indicate by check mark the information filed with this Form:

☑ Annual information form ☑ Audited annual financial statements

Indicate the number of outstanding shares of each of the issuer’s classes of capital or common stock as of the close of the period covered by the annual report.

As of December 31, 2025 – 114,066,995 Common Shares outstanding.

Indicate by check mark whether the Registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Exchange Act during the preceding 12 months (or for such shorter period that the Registrant was required to file such reports) and (2) has been subject to such filing requirements for the past 90 days.

Yes ☑ No ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the Registrant was required to submit such files).

Yes ☑ No ☐

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 12b-2 of the Exchange Act.

Emerging growth company ☐

If an emerging growth company that prepares its financial statements in accordance with U.S. GAAP, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards† provided pursuant to Section 13(a) of the Exchange Act.☐

† The term “new or revised financial accounting standard” refers to any update issued by the Financial Accounting Standards Board to its Accounting Standards Codification after April 5, 2012.

Indicate by check mark whether the registrant has filed a report on and attestation to its management’s assessment of the effectiveness of its internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit report. ☑

If securities are registered pursuant to Section 12(b) of the Act, indicate by check mark whether the financial statements of the Registrant included in the filing reflect the correction of an error to previously issued financial statements. ☐

Indicate by check mark whether any of those error corrections are restatements that required a recovery analysis of incentive-based compensation received by any of the Registrant’s executive officers during the relevant recovery period pursuant to §240.10D-1(b). ☐

The documents, or portions thereof, forming part of this Form 40-F are incorporated by reference into the registration statement Form S-8 333-283922 under the Securities Act of 1933.

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DISCLOSURE CONTROLS AND PROCEDURES

The disclosure provided under “Controls and Procedures” on page M-45 of Exhibit 99.2, Management’s Discussion and Analysis, is incorporated by reference herein.

MANAGEMENT’S ANNUAL REPORT ON INTERNAL CONTROL OVER FINANCIAL REPORTING

The disclosure provided under “Management’s Annual Report on Internal Control Over Financial Reporting” on page F-2 of Exhibit 99.3, 2025 Audited Consolidated Financial Statements, is incorporated by reference herein.

AUDITOR ATTESTATION

The disclosure provided under “Report of Independent Registered Public Accounting Firm” on pages F-3 to F-6 of Exhibit 99.3, 2025 Audited Consolidated Financial Statements, is incorporated by reference herein.

CHANGES IN INTERNAL CONTROL OVER FINANCIAL REPORTING

The disclosure provided under “Controls and Procedures” on page M-45 of Exhibit 99.2, Management’s Discussion and Analysis, is incorporated by reference herein.

IDENTIFICATION OF THE AUDIT COMMITTEE

On December 31, 2025, Stantec’s Audit and Risk Committee was made up of the following five members: Shelley A. M. Brown (Chair), Angeline G. Chen, Richard A. Eng, Christopher F. Lopez, and Celina J. Wang Doka.

AUDIT COMMITTEE FINANCIAL EXPERT

As of December 31, 2025, the following Audit and Risk Committee members were identified as audit committee financial experts (as such term is defined in the rules and regulations of the Securities Exchange Commission): Shelley A. M. Brown, Richard A. Eng, Christopher F. Lopez, and Celina J. Wang Doka. The Securities and Exchange Commission has indicated that the designation of a person as an audit committee financial expert does not impose on such person any duties, obligations or liability that are greater than those imposed on such person as a member of the audit committee and the Board of Directors in the absence of such designation and does not affect the duties, obligations or liability of any other member of the audit committee or Board of Directors. All current members of Stantec's Audit and Risk Committee - Shelley A. M. Brown, Angeline G. Chen, Richard A. Eng, Christopher F. Lopez , and Celina J. Wang Doka - are independent, as that term is defined by the New York Stock Exchange’s corporate governance standards applicable to Stantec.

CODE OF ETHICS

Stantec has adopted a code of ethics, entitled the Stantec Code of Business Conduct (the “Code”). The Code applies to all directors, officers and employees of Stantec, including Stantec’s principal executive officer, principal financial officer and principal accounting officer. Stantec requires that all officers and employees annually certify that they have read and understand the Code. The Code is reviewed regularly to ensure that it complies with all legal requirements and is in alignment with best practices. In the event that amendments are needed, recommendations are made to the Board of Directors for approval. No material amendments nor waivers from any provision of the Code were made nor granted during Stantec's most recently completed fiscal year. The Code is available on Stantec’s website (stantec.com) under the “About – Corporate Governance” section.

The Board of Directors believes that providing a forum for employees and officers to raise concerns about ethical conduct and treating all complaints with the appropriate level of seriousness fosters a culture of ethical conduct within Stantec. The Code sets out our procedures for reporting and investigating observations or concerns raised by employees or officers of the company. Stantec monitors compliance with the Code through its external integrity hotline. The integrity hotline hosted by an independent third party allows officers or employees to report concerns regarding breaches of the Code in writing, over the telephone, by mail or by email. All complaints are treated as confidential, and requests to maintain anonymity are respected to the extent possible. The integrity hotline is managed by an independent third party.

Copies of all complaints are reviewed by the chair of the Audit and Risk Committee upon receipt. A quarterly report is presented to the Audit and Risk Committee and the Sustainability and Safety Committee summarizing the status of any active investigations of complaints and the resolution of all complaints made through the integrity hotline.

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The Board of Directors believes that its effectiveness is furthered when directors exercise independent judgment in considering transactions and agreements. As such, if at any Board of Directors’ meeting a director or executive officer has a material interest in a matter being considered, such director or officer would not be present for discussions relating to the matter and would not participate in any vote on the matter.

PRINCIPAL ACCOUNTANT FEES AND SERVICES

Stantec's auditor is PricewaterhouseCoopers LLP (Edmonton, AB, Canada, PCAOB ID: 271). The disclosure provided under “External Auditor Service Fees” on page 22 of Exhibit 99.1, Annual Information Form, is incorporated by reference herein.

AUDIT COMMITTEE PRE-APPROVAL POLICIES AND PROCEDURES

The disclosure provided under "Preapproval Policy" on page 21 of Exhibit 99.1, Annual Information Form, is incorporated by reference herein. No audit-related fees, tax fees or other fees were approved by the Audit and Risk Committee pursuant to paragraph (c)(7)(i)(C) of Rule 2-01 of Regulation S-X.

OFF-BALANCE SHEET ARRANGEMENTS

The disclosure provided under "Off-Balance Sheet Arrangements" on page M-25 of Exhibit 99.2, Management's Discussion and Analysis, is incorporated by reference herein.

CONTRACTUAL OBLIGATIONS

The disclosure provided under "Cash flows used in financing activities", "Capital Management", and "Contractual Obligations" on pages M-22 to M-25 of Exhibit 99.2, Management's Discussion and Analysis, is incorporated by reference herein.

NYSE CORPORATE GOVERNANCE RULES

The disclosure provided under “NYSE Corporate Governance Disclosure” on page 24 of Exhibit 99.1, Annual Information Form, is incorporated by reference herein.

UNDERTAKING AND CONSENT TO SERVICE OF PROCESS

A.Undertaking

Stantec undertakes to make available, in person or by telephone, representatives to respond to inquiries made by the Commission staff, and to furnish promptly, when requested to do so by the Commission staff, information relating to the securities registered pursuant to Form 40-F, the securities in relation to which the obligation to file an annual report on Form 40-F arises, or transactions in said securities.

B.Consent to Service of Process

Stantec has previously filed with the Commission a Form F-X and amendments thereto in connection with the Common Shares. Any change to the name or address of a Registrant’s agent for service shall be communicated promptly to the Commission by an amendment to Form F-X referencing the file number of the Registrant.

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EXHIBIT INDEX



Exhibit No.						Description

97						Executive Compensation Clawback Policy, incorporated by reference to Exhibit 97 of Stantec’s annual report on Form 40-F filed with the Commission on February 28, 2024 (Commission File No. 001-32562)

99.1						Annual Information Form dated February 25, 2026

99.2						Management’s Discussion and Analysis for the year ended December 31, 2025 (pages M-1 through M-47 of the 2025 Annual Report)

99.3						2025 Audited Consolidated Financial Statements (pages F-1 through F-54 of the 2025 Annual Report)

99.4						Consent of PricewaterhouseCoopers LLP

99.5						Chief Executive Officer’s Certifications required by Rule 13a-14(a) or Rule 15d-14(a), pursuant to Section 302 of the U.S. Sarbanes-Oxley Act of 2002

99.6						Chief Executive Officer’s Certification pursuant to 18 U.S.C. Section 1350, as enacted pursuant to Section 906 of the U.S. Sarbanes-Oxley Act of 2002

99.7						Chief Financial Officer’s Certifications required by Rule 13a-14(a) or Rule 15d-14(a), pursuant to Section 302 of the U.S. Sarbanes-Oxley Act of 2002

99.8						Chief Financial Officer’s Certification pursuant to 18 U.S.C. Section 1350, as enacted pursuant to Section 906 of the U.S. Sarbanes-Oxley Act of 2002

101.						Interactive Data File (formatted as Inline XBRL)

104.						Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101)

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SIGNATURES

Pursuant to the requirements of the Exchange Act, the Registrant certifies that it meets all of the requirements for filing on Form 40-F and has duly caused this annual report to be signed on its behalf by the undersigned, thereto duly authorized.


			STANTEC INC.

			/s/ Gordon A. Johnston
			Gordon A. Johnston, M. Eng., P. Eng. President and Chief Executive Officer

Date: February 25, 2026

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SEC Form 40-F filed by Stantec Inc