Insider plans Class A sale tied to vesting — MicroStrategy (MSTR)

Rhea-AI Filing Summary

MSTR reported proposed sales of Class A shares under Form 144 by insiders. The filing lists a proposed sale event tied to restricted stock vesting on 06/04/2026 and individual prior sales by Phong Le on 03/12/2026 and 03/24/2026.

Insights

Insider Transactions Analyst

Routine Form 144 notice records proposed insider sales tied to vesting.

The filing lists a proposed sale of Class A shares associated with restricted stock vesting dated 06/04/2026 and prior dispositions by an individual reporting person, including 2,034 and 3,299 shares on 03/12/2026 and 03/24/2026.

Cash‑flow treatment and total proceeds are not stated in the excerpt; subsequent transaction reports or trade confirmations would show actual sales executed under these notices.

Key Figures

Proposed sale date: 06/04/2026 Prior disposition (Mar 12, 2026): 2,034 shares Prior disposition (Mar 24, 2026): 3,299 shares +3 more

6 metrics

Proposed sale date 06/04/2026 Restricted stock vesting date listed for proposed sale

Prior disposition (Mar 12, 2026) 2,034 shares Reported sale by Phong Le on 03/12/2026

Prior disposition (Mar 24, 2026) 3,299 shares Reported sale by Phong Le on 03/24/2026

Proceeds reported (Mar 12, 2026) $279,174.43 Dollar amount shown for 03/12/2026 disposition

Proceeds reported (Mar 24, 2026) $456,363.54 Dollar amount shown for 03/24/2026 disposition

Broker Fidelity Brokerage Services LLC Listed intermediary address and NASDAQ reference

Key Terms

Form 144, Restricted Stock Vesting, Class A

3 terms

Form 144 regulatory

"Class A | 06/04/2026 | Restricted Stock Vesting | Issuer"

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

Restricted Stock Vesting financial

"Class A | 06/04/2026 | Restricted Stock Vesting"

Restricted stock vesting is the timetable and conditions under which shares granted to employees or insiders become fully owned and can be sold, typically requiring continued work or meeting performance goals. It matters to investors because large blocks of shares can become tradable at once, which can change share supply and price, and because vesting aligns insiders’ incentives with the company’s long‑term performance—think of it like a timed unlock that both rewards and locks in key people.

Class A market

"Class A | Fidelity Brokerage Services LLC 900 Salem Street"

Class A denotes a specific group of a company’s shares that carry a particular set of rights—most commonly different voting power or dividend priority compared with other share classes. Think of it like different seats on a bus where some seats let you steer and others only ride: knowing whether a share is Class A tells investors how much influence they have over company decisions and how returns might be distributed, which affects control and value.

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Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK
Filer CCC
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.

Relationship to Issuer

Relationship to Issuer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Class A	Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917	93738	11129259.65	330807622	06/05/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Class A	06/04/2026	Restricted Stock Vesting	Issuer			93738	06/04/2026	Compensation

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
Phong Le 1850 Towers Crescent Plaza Tysons Corner VA 22182	Class A	03/12/2026	2034	279174.43
Phong Le 1850 Towers Crescent Plaza Tysons Corner VA 22182	Class A	03/24/2026	3299	456363.54

144: Remarks and Signature

Remarks

Date of Notice

Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1

ATTENTION:

The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.

Signature

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)

FAQ

What does the MSTR Form 144 filing disclose?

The filing discloses proposed sales of Class A shares tied to restricted stock vesting on 06/04/2026. It also lists prior reported dispositions by Phong Le on 03/12/2026 and 03/24/2026 with share counts and dollar amounts.

Who is named in the MSTR Form 144 excerpt?

The excerpt names Fidelity Brokerage Services LLC as an intermediary and individual reporting person Phong Le, showing prior sales of 2,034 and 3,299 Class A shares on the dates shown in March 2026.

Are the proposed sales in the filing already completed?

No. Form 144 is a notice of proposed sales; the excerpt lists a vesting‑linked proposed sale dated 06/04/2026. Actual sale execution and proceeds are not shown in the provided text and would appear in separate transaction reports if executed.

What amounts are shown for prior dispositions by Phong Le?

The excerpt shows prior dispositions by Phong Le of 2,034 shares for $279,174.43 on 03/12/2026 and 3,299 shares for $456,363.54 on 03/24/2026, as listed in the filing.