Company: MSTR
Filing Date: 2025-11-04
Form Type: 424B5
Source: 0001193125-25-263731
Chunk: 11

Company: Strategy Inc
Filing Date: 2025-11-04
Form: 424B5
Chunk 11
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 subject to this Common Stock Annex, (ii) the termination of this offering of class A common stock in accordance with the terms of the Sales Agreement and (iii) the termination of the Sales Agreement as
permitted therein.

This summary of the material provisions of the Sales Agreement does not purport to be a complete statement of its terms and
conditions. A copy of the Sales Agreement will be filed with the SEC as an exhibit to a Current Report on Form 8-K filed under the Exchange Act and will be incorporated by reference into the registration
statement of which this Common Stock Annex forms a part.

SA-8

LEGAL MATTERS

The validity of the securities offered hereby will be passed upon by Wilmer Cutler Pickering Hale and Dorr LLP. The Agents are being represented by Davis
Polk & Wardwell LLP in connection with the offerings of securities hereunder.

SA-9

Class A Common Stock PROSPECTUS SUPPLEMENT COMMON STOCK ANNEX

| TD Securities         |     | Barclays                |     | The Benchmark Company |     | BTIG                     |
| Canaccord Genuity     |     | Cantor                  |     | Clear Street          |     | Compass Point            |
| H.C. Wainwright & Co. |     | Keefe, Bruyette & Woods 
 A Stifel Company        |     | Maxim Group LLC       |     | Mizuho                   |
| Morgan Stanley        |     | Santander               |     | SOCIETE GENERALE      |     | Texas Capital Securities |

November 4, 2025