Company: MSTR
Filing Date: 2025-06-10
Form Type: 8-A12B
Source: 0001193125-25-138505
Chunk: 2

Company: Strategy Inc
Filing Date: 2025-06-10
Form: 8-A12B
Chunk 2
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, 2025 (File No. 001-42509)).                  |
| 4.2            |     | Form of certificate representing the 10.00% Series A Perpetual Stride Preferred Stock (included as Exhibit A to Exhibit 4.1 above).                       |

* * * - 1 -

SIGNATURE Pursuant to the requirements of Section 12 of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this registration statement to be signed on its behalf by the undersigned, thereto duly authorized.

| Dated: June 10, 2025 |     | MicroStrategy Incorporated 
 By:                        |     | /s/ W. Ming Shao                           |
|:---------------------|:----|:---------------------------|:----|:-------------------------------------------|
|                      |     | Name:                      |     | W. Ming Shao                               |
|                      |     | Title:                     |     | Executive Vice President & General Counsel |