Capital International Investors (MSTR) discloses 31.6M-share, 10.1% stake

Rhea-AI Filing Summary

Capital International Investors reports beneficial ownership of 31,642,100 shares of Strategy Inc common stock, representing 10.1% of the 314,264,726 shares believed to be outstanding. The filing states 31,621,215 shares are held with sole voting power and 31,642,100 with sole dispositive power. The schedule notes that reported shares include convertible preferreds equal to 152,268 common shares and corporate convertible/exchangeable debt equal to 21,732 common shares. The amendment is signed by Aaron Espin on 05/13/2026.

Insights

Institutional Ownership Analyst

Large passive holding disclosed: 31.6M shares (10.1%).

Capital International Investors is reported as beneficial owner of 31,642,100 shares, equal to 10.1% of the issuer's stated outstanding share count. The filing aggregates holdings across investment management entities under the CII name.

Voting and dispositive counts are explicitly shown: 31,621,215 sole voting power and 31,642,100 sole dispositive power. Subsequent SEC filings may confirm whether this position is passive or active under Rule 13d-1; timing and intent are not stated in the excerpt.

Corporate Governance Specialist

Disclosure shows control metrics and security equivalence conversions.

The schedule itemizes security equivalence: 1,522,681 Convertible Preferred Stocks reported as 152,268 common share equivalents and 14,613,000 corporate convertible/exchangeable debts reported as 21,732 common share equivalents. These conversions are included in the beneficial ownership total.

Because the filing consolidates multiple management entities under CII, governance implications depend on whether voting is exercised centrally; the excerpt does not state any change in board composition or control actions.

Key Figures

Beneficial ownership: 31,642,100 shares Percent of class: 10.1% Shares outstanding (stated): 314,264,726 shares +4 more

7 metrics

Beneficial ownership 31,642,100 shares Amount beneficially owned reported in Schedule 13G/A

Percent of class 10.1% Percent of class based on 314,264,726 shares believed outstanding

Shares outstanding (stated) 314,264,726 shares Shares believed to be outstanding as cited in the filing

Sole voting power 31,621,215 shares Number with sole power to vote or direct the vote

Sole dispositive power 31,642,100 shares Number with sole power to dispose or direct disposition

Convertible preferred equivalents 152,268 shares Common-equivalent from 1,522,681 Convertible Preferred Stocks

Convertible debt equivalents 21,732 shares Common-equivalent from 14,613,000 corporate convertible/exchangeable debts

Key Terms

Schedule 13G/A, Beneficial owner, Convertible/exchangeable debt, Sole dispositive power

4 terms

Schedule 13G/A regulatory

"Amendment No. 6 and header identifying Schedule 13G/A filing"

A Schedule 13G/A is an amended public filing with the U.S. securities regulator that updates a previous Schedule 13G, disclosing when an individual or group holds a substantial (typically over 5%) stake in a company and is claiming a passive, non‑controlling intent. Investors monitor these updates because rising or falling holdings can signal changing confidence, potential future moves, or shifts in voting power — like watching a public ledger where large shareholders quietly adjust their positions.

Beneficial owner financial

"CII is deemed to be the beneficial owner of 31,642,100 shares"

A beneficial owner is the person who ultimately owns or controls a financial asset or property, even if their name isn't directly on official documents. Think of it like someone who secretly holds the keys to a safe deposit box—others may appear to have access, but the true owner is the one who benefits from what's inside. Identifying beneficial owners helps ensure transparency and prevent illegal activities like money laundering or fraud.

Convertible/exchangeable debt financial

"14,613,000 Corporate Convertible/ Exchangeable Debts, which represent 21,732 Common Stock"

Sole dispositive power regulatory

"Sole power to dispose or to direct the disposition of: 31,642,100"

Sole dispositive power is the exclusive legal authority to decide what happens to a security — for example, whether to sell, transfer, or retain shares — without needing anyone else’s permission. Investors care because it signals who truly controls the economic outcome of an investment: like holding the only key to a safe, the holder can realize gains or losses and may trigger regulatory reporting, insider rules, or influence over corporate ownership.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 6)

Strategy Inc

(Name of Issuer)

Common Stock

(Title of Class of Securities)

594972408

(CUSIP Number)

03/31/2026

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

schemaVersion:

SCHEDULE 13G

CUSIP Number(s): 594972408

1

Names of Reporting Persons

Capital International Investors

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 31,621,215.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 31,642,100.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

31,642,100.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

10.1 %

12

Type of Reporting Person (See Instructions)

IA

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Strategy Inc
(b)	Address of issuer's principal executive offices: 1850 Towers Crescent Plaza, Tysons Corner, VA 22182
Item 2.
(a)	Name of person filing: Capital International Investors
(b)	Address or principal business office or, if none, residence: 333 South Hope Street, 55th Fl, Los Angeles, CA 90071
(c)	Citizenship: N/A
(d)	Title of class of securities: Common Stock
(e)	CUSIP No.: 594972408
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.	Ownership
(a)	Amount beneficially owned: 31,642,100 ** **Capital International Investors ("CII") is a division of Capital Research and Management Company ("CRMC"), as well as its investment management subsidiaries and affiliates Capital Bank and Trust Company, Capital International, Inc., Capital International Limited, Capital International Sarl, Capital International K.K., Capital Group Private Client Services, Inc., and Capital Group Investment Management Private Limited (together with CRMC, the "investment management entities"). CII's divisions of each of the investment management entities collectively provide investment management services under the name "Capital International Investors." CII is deemed to be the beneficial owner of 31,642,100 shares or 10.1% of the 314,264,726 shares believed to be outstanding. Shares reported include 1,522,681 Convertible Preferred Stocks, which represent 152,268 Common Stock. Shares reported include 14,613,000 Corporate Convertible/ Exchangeable Debts, which represent 21,732 Common Stock.
(b)	Percent of class: 10.1 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 31,621,215
	(ii) Shared power to vote or to direct the vote: 0
	(iii) Sole power to dispose or to direct the disposition of: 31,642,100
	(iv) Shared power to dispose or to direct the disposition of: 0
Item 5.	Ownership of 5 Percent or Less of a Class.
	Not Applicable
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	Not Applicable
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	Not Applicable
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Capital International Investors

Signature:	Aaron Espin
Name/Title:	Senior Vice President
Date:	05/13/2026

FAQ

What stake does Capital International Investors report in Strategy Inc (MSTR)?

Capital International Investors reports beneficial ownership of 31,642,100 shares, equal to 10.1% of the 314,264,726 shares believed outstanding, as stated in the Schedule 13G/A amendment.

How many shares does CII have voting authority over in Strategy Inc (MSTR)?

The filing lists 31,621,215 shares as subject to sole voting power. It also reports 31,642,100 shares as subject to sole dispositive power, per the amendment signed on 05/13/2026.

Do the reported holdings include convertible securities for Strategy Inc (MSTR)?

Yes. The filing states 1,522,681 Convertible Preferred Stocks (reported as 152,268 common equivalents) and 14,613,000 corporate convertible/exchangeable debts (reported as 21,732 common equivalents) are included in the total.

Who signed the Schedule 13G/A amendment for Strategy Inc (MSTR)?

The filing is signed by Aaron Espin, Senior Vice President, with the signature date shown as 05/13/2026, attesting to the information provided in the amendment.