UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934

Form 6-K

REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of January, 2026.

Commission File Number: 001-41566

DEFSEC Technologies Inc.

(Exact Name of Registrant as Specified in Charter) 80 Hines Rd, Suite 300, Ottawa, Ontario, K2K 2T8

80 Hines Rd, Suite 300, Ottawa, Ontario, K2K 2T8

(Address of principal executive offices)

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

Form 20-F x Form 40-F ¨□

INCORPORATION BY REFERENCE

Exhibit 99.1 of this Form 6-K is incorporated by reference into the Registrant's Registration Statement on Form F-3 File No. 333-277196, Form F-3 File No. 333-281960, Form F-3, as amended, File No. 333-283343 and Form F-3 File No. 333-285263.

SIGNATURE

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.

	~~DEFSEC TECHNOLIGIES INC.~~	DEFSEC TECHNOLIGIES INC.
	~~(Registrant)~~	(Registrant)
Date: January 22, 2026	By:	/s/ Jennifer Welsh
Date:	January 27, 2026	By:	/s/ Jennifer Welsh
	~~Name:~~	~~Jennifer Welsh~~Name:	Jennifer Welsh
	~~Title:~~	~~Chief Financial Officer~~Title:	Chief Financial Officer

EXHIBIT INDEX

99.1	Amended and Restated Management Information Circular dated January 514, 2026
99.2	~~Form~~Amended and Restated Notice of ~~Proxy~~Meeting dated January 14, 2026
99.3	~~Notice~~Press ofRelease ~~Meeting~~ dated January 523, 2026
99.4	Form of Proxy

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