Company: MSTR
Filing Date: 2025-08-11
Form Type: DEFA14A
Source: 0001193125-25-177525
Chunk: 1

Company: Strategy Inc
Filing Date: 2025-08-11
Form: DEFA14A
Chunk 1
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 value per share         |     | STRF    |     | The Nasdaq Global Select Market |
| 10.00% Series A Perpetual Stride Preferred Stock, $0.001 par value per share         |     | STRD    |     | The Nasdaq Global Select Market |
| Variable Rate Series A Perpetual Stretch Preferred Stock, $0.001 par value per share |     | STRC    |     | The Nasdaq Global Select Market |

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2of the Securities Exchange Act of 1934 (§240.12b-2of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

| Item 5.03 | Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year. |

On August 11, 2025, MicroStrategy Incorporated (the “Company”) filed with the Secretary of State of the State of Delaware an amendment (the “Certificate of Amendment”) to the Company’s Second Restated Certificate of Incorporation (as amended and supplemented to date, the “Certificate of Incorporation”), to effect a change of its name from “MicroStrategy Incorporated” to “Strategy Inc” (the “Name Change”). The Company’s securities that are listed on The Nasdaq Global Select Market (“Nasdaq”) will continue to trade on Nasdaq under their current symbols:

| • |     | “MSTR” (class A common stock); |

| • |     | “STRK” (8.00% Series A Perpetual Strike Preferred Stock); |

| • |     | “STRF” (10.00% Series A Perpetual Strife Preferred Stock); |

| • |     | “STRD” (10.00% Series A Perpetual Stride Preferred Stock); and |

| • |     | “STRC” (Variable Rate Series A Perpetual Stretch Preferred Stock). |

The CUSIP numbers of the Company’s securities are not affected by the Name Change. The Name Change will have no effect on the Company’s corporate structure. The board of directors of the Company (the