DFSC 6-K

UNITED STATESSECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 6-K

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

For the month of August, 2026.

Commission File Number: 001-41566

DEFSECTechnologies Inc.****(Exact Name of Registrant as Specified in Charter)

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 ☒ Form 40-F ☐

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.

EXHIBIT INDEX

EXHIBIT 99.1

DEFSEC Technologies Inc. Announces Third Quarter Fiscal 2026 Results

OTTAWA, ON, Aug. 13, 2026 /CNW/ - DEFSEC Technologies Inc. (TSXV: DFSC) (TSXV: DFSC.WT.U) (NASDAQ: DFSC) (NASDAQ: DFSCW) ("DEFSEC" or the "Company") is pleased to announce the highlights of its Fiscal 2026 third quarter ("Q3 Fiscal 2026") results. This announcement is a summary only and should be read in conjunction with DEFSEC's unaudited condensed consolidated interim financial statements for the three and nine months ended June 30, 2026 and 2025 and related management's discussion and analysis for the three and nine months ended June 30, 2026, all of which have been filed on SEDAR+ and EDGAR. All figures are stated in Canadian Dollars unless otherwise noted.

Strong continued growth in defence softwarebusiness

"The continued growth this quarter in our defence software business is further evidence of our commitment to growing a predictable, long-term stable base of revenue and margin from strategically important military programs," said Sean Homuth, President and CEO.

Additional launch milestones achieved

The Company has achieved significant milestones with its product roadmap during Q3. On May 6, 2026, the Company commercially released DEFSEC Lightning™ 2.0, its cloud-hosted, TAK-enabled real-time situational awareness SaaS platform for Critical Incident Management, with one Canadian police agency having subscribed ahead of full release. On May 13, 2026, the Company commercially released its ARWEN^®^ 40mm baton ammunition, now in full-rate production, for use with third-party 40mm launchers.

"Achieving these product commercialization milestones marks an important step in catalyzing further revenue growth and diversification in the public safety market," said Mr. Homuth.

Q3 Fiscal 2026 Financial Highlights:

Three months ended June 30,

As at

U.S Army testing of BLISS™

The Company announces the completion of test and evaluation of its networked BLISS™ at a United States Army test center, where the systems were tested in support of a U.S. Army vehicle program. The completed testing follows the Company's shipment of two new networked BLISS™ systems to the US Army test center, announced on April 29, 2026.

Building on this milestone, the Company further announced that it has been invited by a U.S. Army program office to participate in a U.S. Army-hosted sensor test and evaluation scheduled to take place in late August 2026 at another U.S. Army test range. The invitation reflects the performance of BLISS™ in testing to date and provides DEFSEC with a significant opportunity to demonstrate the system's capabilities in an operationally relevant environment before U.S. Army program stakeholders.

The patent-pending BLISS™ system alerts operators to laser activity across the battlespace, providing critical early warning and valuable seconds to assess, evade, defend, and deploy countermeasures. Miniaturized BLISS™ sensors can be mounted on vehicles and fixed infrastructure, or worn on personnel, to affordably blanket a battlespace with sensors for enhanced survivability, situational awareness and battlespace intelligence in contested environments. Beyond real-time detection, BLISS™ incorporates enhanced laser pulse signature capture and analysis to help identify the source, intent, and affiliation of detected emissions, transforming laser warning into shared, actionable battlespace information.

"The completion of US Army testing and this latest invitation to demonstrate BLISS™ at an additional U.S. Army-hosted event is strong validation of our technology roadmap for battlespace laser detection and intelligence," said Mr. Homuth. "This event puts BLISS™ in front of the operators and decision-makers who will shape future requirements, and it is a meaningful step toward fielding this capability to protect soldiers and high-value assets in the battlespace. With multiple U.S. Army programs testing and evaluating the BLISS™, we see validation that this product solves a problem that matters to warfighters."

About DEFSEC

DEFSEC (TSXV: DFSC) (TSXV: DFSC.WT.U) (NASDAQ: DFSC) (NASDAQ: DFSCSW) (FSE: 62UA) develops and commercializes breakthrough next-generation tactical systems for military and security forces. The Company's current portfolio of offerings includes digitization of tactical forces for real-time shared situational awareness and targeting information from any source (including drones) streamed directly to users' smart devices and weapons. Other DEFSEC products include countermeasures against threats such as electronic detection, lasers and drones. These systems can operate stand-alone or integrate seamlessly with OEM products and battlefield management systems, and all come integrated with TAK. The Company also has a new proprietary less-lethal product line branded PARA SHOT™ with applications across all segments of the less-lethal market, including law enforcement. The Company is headquartered in Ottawa, Canada.

For more information, please visit https://www.defsectec.com

Forward-Looking Statements

This news release contains "forward-lookingstatements" and "forward-looking information" within the meaning of Canadian and United States securities laws (collectively,"forward-looking statements"), which may be identified by the use of terms and phrases such as "may", "would","should", "could", "expect", "intend", "estimate", "anticipate", "plan","foresee", "have sight of", "believe", or "continue", the description of "optimism","momentum" or "interest", the negative of these terms and similar terminology, including references to assumptions,although not all forward-looking statements contain these terms and phrases. Forward-looking statements are provided for the purpose ofassisting the reader in understanding us, our business, operations, prospects and risks at a point in time in the context of historicaland possible future developments and therefore the reader is cautioned that such information may not be appropriate for other purposes.Such forward-looking statements are based on the current expectations of DEFSEC's management and are based on assumptions and subjectto risks and uncertainties that are documented in detail in the Company's public filings. Forward-looking statements included in thisinclude, but are not limited to: management's belief of sufficiency of available financial resources to support forecasted activitiesin 2026 based on cash on hand, anticipated revenue streams and planned expenditures in the fiscal year, subject to execution of the Company'soperating plan and other risks and factors described in its public filings; interest in DEFSEC Lightning™ 2.0 or other productsand services as well as timing of full implementation, subscription uptake or commercial release thereof; the Company's estimates of programbillings on an annualized go-forward basis and increases to annualized gross margin on a go-forward basis and extent thereof, if any;the outcome and timing of test and evaluation activities for BLISS™ at the United States Army Yuma Test Center and whether suchactivities result in follow-on orders; the ability to sustain full-rate production of, and demand for, ARWEN^®^ 40mm batonammunition; the stage of scaled production for the PARA SHOT™ technology into new training cartridges and timing of release thereof;the intended use of net proceeds from the June 2026 registered direct offering and concurrent private placement and whether any warrantsare exercised; and management's belief that its extensive customer base of law enforcement agencies for ARWEN^®^ throughoutNorth America is a ready market for its new products like PARA SHOT™ as well as DEFSEC Lightning™.

Although DEFSEC's management believes that theassumptions underlying such forward-looking statements are reasonable, they may prove to be incorrect. The forward-looking statementsdiscussed in this news release may not occur by certain specified dates or at all and could differ materially as a result of known andunknown risk factors and uncertainties affecting DEFSEC, including DEFSEC's inability to execute on its current operating plan and/orfiscal 2026 forecasted activities, DEFSEC's inability to secure contracts and subcontracts (on the timelines, size and scale expectedor at all), statements of work and orders for its products in fiscal 2026 and onwards for reasons beyond its control, the renewal or extensionof agreements beyond their original term, the granting of patents applied for by DEFSEC, inability to finance the scale up to full commercialproduction levels for its physical products, inability to secure key partnership agreements to facilitate the outsourcing and logisticsfor its ARWEN^®^ and PARA SHOT™ products, inability to commercialize DEFSEC's Battlespace Laser Identification SensorSystem (BLISS™), inability to secure or complete the execution of government contracts, inability to drive growth in DEFSEC's ARWEN^®^product line, inability to advance the commercialization of DEFSEC's PARA SHOT™ products, delay or inability to grow subscriptionsfor DEFSEC's Lightning™ 2.0 SaaS offering, lower than expected or delayed demand for DEFSEC's BLISS™, overall interest inDEFSEC's products being lower than anticipated or expected; general economic and stock market conditions; a stagnation or decrease inNorth American defence and public safety spending, adverse industry events; future legislative and regulatory developments in Canada,the United States and elsewhere, including changes to the continued listing requirements of the Nasdaq Capital Market and the TSX VentureExchange; the inability of DEFSEC to implement and execute its business strategies; the Company's ability to raise additional capitalwhen required and on acceptable terms; risks and uncertainties detailed from time to time in DEFSEC's filings with the Canadian SecurityAdministrators and the United States Securities and Exchange Commission, and many other factors beyond the control of DEFSEC. AlthoughDEFSEC has attempted to identify important factors that could cause actual actions, events or results to differ materially from thosedescribed in forward-looking statements, there may be other factors that cause actions, events or results to differ from those anticipated,estimated or intended. Except as required by applicable securities laws, forward-looking statements speak only as of the date on whichthey are made and DEFSEC undertakes no obligation to publicly update or revise any forward-looking statements, whether as a result ofnew information, future events or otherwise.

Neither the TSX Venture Exchange nor its respectiveRegulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacyor accuracy of this news release.

Non-IFRS Measures

This news release makes reference to certain non-IFRSmeasures. These measures are not recognized measures under the International Financial Reporting Standards ("IFRS"), do nothave a standardized meaning prescribed by IFRS, and are therefore unlikely to be comparable to similar measures presented by other companies.Rather, these measures are provided as additional information to complement those IFRS measures by providing further understanding ofour results of operations from management's perspective. Accordingly, these measures should not be considered in isolation nor as a substitutefor analysis of our financial information reported under IFRS.

The non-IFRS measures used in this news releaseinclude "program billings on an annualized go-forward basis" and "Adjusted EBITDA", which are unaudited, non-IFRSmeasures.

"Program billings on an annualized go-forwardbasis", refers to programmatic revenue based on the roles staffed for a full year at the program billing rate. Management believesprogram billings on annualized go-forward basis is a useful measure because it reflects management's estimate of annualized revenues basedon current contractual taskings as of the date of this release. The most directly comparable financial measure that is disclosed in thefinancial statements of the Company to which the non-IFRS measure relates is revenue.

"Adjusted EBITDA" refers to the sum ofrevenue, cost of goods sold, general and administrative expense, sales and marketing expense, and research and development expense asdetermined by management. Adjusted EBITDA is provided to assist readers in determining the ability of the Company to generate cash fromoperations and to cover financial charges. Management believes that Adjusted EBITDA provides useful information to investors as it isan important indicator of an issuer's ability to generate liquidity through cash flow from operating activities and equity accounted investees.Adjusted EBITDA is also used by investors and analysts for assessing financial performance and for the purpose of valuing an issuer, includingcalculating financial and leverage ratios. The most directly comparable financial measure that is disclosed in the financial statementsof the Company to which the non-IFRS measure relates is operating loss.

These non-IFRS financial measures reflect an additionalway of viewing aspects of the Company's operations that, when viewed with IFRS results and the reconciliations to the corresponding IFRSfinancial measures, may provide a more complete understanding of factors and trends affecting the Company's business. Because non-IFRSfinancial measures exclude the effect of items that will increase or decrease the Company's reported results of operations, managementstrongly encourages investors to review the Company's consolidated financial statements and publicly filed reports in their entirety underthe Company's profile on EDGAR and SEDAR+.

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%CIK: 0001889823

For further information: For further information, please contact: Jennifer Welsh, Chief Financial Officer and Chief Compliance Officer, [email protected], (613) 241-1849 EXT 102; Sean Homuth, President and Chief Executive Officer, [email protected], (613) 863-1255

CO: DEFSEC Technologies Inc

CNW 07:29e 13-AUG-26