SU files Q3 2025 MD&A and unaudited financials; Form 40-F issuer

Rhea-AI Filing Summary

Suncor Energy Inc. furnished its third-quarter materials via Form 6-K. The filing includes the Management’s Discussion and Analysis and Unaudited Consolidated Financial Statements for the quarter ended September 30, 2025.

These exhibits are incorporated by reference into Suncor’s existing Securities Act registration statements, including several Form S-8 filings and a Form F-10. The company reports under Form 40-F.

Form 6-K: How Foreign Companies Report to the SEC →

FORM 6-K

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SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

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Report of Foreign Private Issuer

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

the Securities Exchange Act of 1934

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For the month of: November, 2025	Commission File Number: 1-12384

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SUNCOR ENERGY INC.

(Name of registrant)

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150 – 6th Avenue S.W.

P.O. Box 2844

Calgary, Alberta

Canada, T2P 3E3

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Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F:

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Form 20-F	​	​	​	Form 40-F	​	X

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The Registrant’s Management’s Discussion and Analysis for the third quarter ended September 30, 2025, included as Exhibit 99.1 of this Form 6-K, and the Unaudited Consolidated Financial Statements for the third quarter ended September 30, 2025, included as Exhibit 99.2 of this Form 6-K, are each incorporated by reference into and as an exhibit to, as applicable, the Registrant’s Registration Statements under the Securities Act of 1933: Form S-8 (File No. 333-87604), Form S-8 (File No. 333-112234), Form S-8 (File No. 333-118648), Form S-8 (File No. 333-124415), Form S-8 (File No. 333-149532), Form S-8 (File No. 333-161021), Form S-8 (File No. 333-161029) and Form F-10 (File No. 333-279937).

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SIGNATURES

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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.

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​	​	SUNCOR ENERGY INC.
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Date: ​ ​ November 4, 2025	​	By: ​ ​ /s/ “Shawn Poirier”
​	​	Shawn Poirier Assistant Corporate Secretary

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EXHIBIT INDEX

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Exhibit	​	Description of Exhibit
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99.1	​	Management’s Discussion and Analysis for the third quarter ended September 30, 2025
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99.2	​	Unaudited Consolidated Financial Statements for the third quarter ended September 30, 2025
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99.3	​	Certification of the President and Chief Executive Officer
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99.4	​	Certification of the Chief Financial Officer

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FAQ

What did Suncor Energy (SU) furnish in this Form 6-K?

Suncor furnished its Q3 2025 Management’s Discussion and Analysis and Unaudited Consolidated Financial Statements as exhibits.

Which period do the Suncor Q3 materials cover?

They cover the third quarter ended September 30, 2025.

Are the exhibits incorporated by reference into any registration statements?

Yes. They are incorporated by reference into Suncor’s Form S-8 registration statements and a Form F-10.

Does Suncor report under Form 20-F or Form 40-F?

Form 40-F.

Which exhibits are included with this submission?

Exhibit 99.1 (MD&A), 99.2 (Unaudited Consolidated Financial Statements), 99.3 (CEO certification), and 99.4 (CFO certification).

Is this filing an earnings release with headline financial results?

No. It furnishes the MD&A and unaudited financial statements; no headline figures are provided in the cover.