Byrna Technologies Inc.

Factors that could cause our actual results to differ materially from those in this report include the “Risk Factors” in Part I, Item 1A of our Annual Report on Form 10-K for the fiscal year ended November 30, 2025, filed with the SEC on February 5, 2026, as amended on March 30, 2026. Except as set forth below, there have been no material changes to the risk factors disclosed in our 2025 Form 10-K.

Certain of our chemical irritant defense spray products contain solvents that are prohibited under federal law, which has required us to suspend sales of those products and may expose us to penalties, claims, and costs.

In September 2026, we determined that certain of our Fox Labs branded defense sprays are formulated by our third-party contract filler with trichloroethylene, the processing and distribution of which for consumer use has been prohibited by an EPA rule under the Toxic Substances Control Act since June 2025. We suspended shipments of the affected Fox Labs products, instructed our dealers and distributors to suspend sales of them. As of October 6, 2026, we voluntarily disclosed this matter to the EPA and intend to file a voluntary disclosure report with the CPSC. We may incur costs to reformulate, relabel, replace or dispose of products; may be required to write down inventory; will lose revenue from the affected product lines while they are reformulated; may be subject to civil penalties; may face claims from customers, dealers, distributors or governmental authorities; and may be unable to recover our costs from our contract filler. Regulatory or public attention to this matter could also harm our reputation and our relationships with law enforcement and other institutional customers. We cannot predict the outcome of this matter or the cost or duration of these actions, and any of them could have a material adverse effect on our business, results of operations and financial condition.