Form FWP Strategy Inc Filed by: Strategy Inc

Filed Pursuant to Rule 433 of the Securities Act of 1933

Free Writing Prospectus dated November 2, 2026

Relating to the following documents, each as amended and supplemented to date:

(i) the Base Prospectus Supplement dated November 4, 2025;

(ii) the two Prospectus Supplement Annexes dated November 4, 2025 relating to offerings of 10.00% Series A Perpetual Strife Preferred Stock and 10.00% Series A Perpetual Stride Preferred Stock; and

(iii) the three Prospectus Supplement Annexes dated March 23, 2026 relating to offerings of Variable Rate Series A Perpetual Stretch Preferred Stock, 8.00% Series A Perpetual Strike Preferred Stock and class A common stock

Registration No. 333-284510

Strategy Inc (the “Company”) has filed with the Securities and Exchange Commission (“SEC”) a registration statement (including a base prospectus), a base prospectus supplement to the base prospectus and supplements thereto, and prospectus supplement annexes and supplements thereto for the offerings to which this communication relates. Before you invest, you should read the base prospectus, base prospectus supplement, supplements to the base prospectus supplement, prospectus supplement annexes and supplements thereto, and other documents incorporated by reference or that the Company has filed with the SEC for more complete information about the Company and the offerings. You may get these documents for free by visiting EDGAR on the SEC website at www.sec.gov or by visiting www.strategy.com.

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