Jane Street Group, LLC and affiliated entities filed an amended Schedule 13G reporting beneficial ownership of Strategy Inc’s Class A common stock. They report beneficial ownership of 19,501,420.50 shares, representing 7.3% of the class, with no sole voting or dispositive power and full authority shared among the reporting entities.
The filing states the securities were acquired and are held in the ordinary course of business and not for the purpose of changing or influencing control of Strategy Inc. The report lists several Jane Street subsidiaries, including broker-dealer units and international affiliates, as part of the ownership structure.
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FAQ
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How many Strategy Inc (MSTR) shares does Jane Street Group report owning?
Jane Street Group and affiliates report beneficial ownership of 19,501,420.50 Strategy Inc Class A shares. This stake is disclosed in their amended Schedule 13G as representing 7.3% of the outstanding class, with voting and dispositive power shared among the reporting entities.
What percentage of Strategy Inc (MSTR) does Jane Street Group’s stake represent?
Jane Street Group and related entities report holding 7.3% of Strategy Inc’s Class A common stock. This percentage is based on 19,501,420.50 shares they beneficially own, as detailed in the Schedule 13G/A ownership section for Item 4.
Is Jane Street seeking to influence control of Strategy Inc (MSTR)?
Jane Street certifies it is not seeking to change or influence control of Strategy Inc. The filing states the securities were acquired and are held in the ordinary course of business, not in connection with any control-related transaction or campaign.
Which Jane Street entities are listed as Strategy Inc (MSTR) reporting persons?
The filing lists Jane Street Group, LLC, Jane Street Capital, LLC, Jane Street Options, LLC, Jane Street Global Trading, LLC, and Jane Street Singapore Pte. Ltd as reporting persons, with each entity’s address and jurisdiction of organization specified.
How much of Strategy Inc (MSTR) does Jane Street Options, LLC specifically report?
Jane Street Options, LLC reports beneficial ownership of 18,547,200.00 Strategy Inc Class A shares, representing 6.9% of the class. It shows no sole voting or dispositive power, with all such powers shared, consistent with the group reporting structure.
What is the event date for Jane Street’s Schedule 13G/A on Strategy Inc (MSTR)?
The event triggering this amended Schedule 13G is dated December 31, 2025. Ownership information, including the 19,501,420.50 shares and corresponding 7.3% stake, is reported as of that event date in the filing.
Jane Street Group, LLC;
Jane Street Capital, LLC;
Jane Street Options, LLC;
Jane Street Global Trading, LLC;
Jane Street Singapore Pte. Ltd
(b)
Address or principal business office or, if none, residence:
Jane Street Group, LLC
250 Vesey Street
6th Floor
New York, NY 10281
Jane Street Capital, LLC
250 Vesey Street
6th Floor
New York, NY 10281
Jane Street Options, LLC
250 Vesey Street
6th Floor
New York, NY 10281
Jane Street Global Trading, LLC
250 Vesey Street
6th Floor
New York, NY 10281
Jane Street Singapore Pte. Ltd
4/F, Ocean Financial Centre 10 Collyer Quay
Singapore 049315
(c)
Citizenship:
See Item 4 of Cover Page
(d)
Title of class of securities:
Class A common stock, $0.001 par value per share
(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:
19,501,420.50
(b)
Percent of class:
7.3 %
(c)
Number of shares as to which the person has:
(i) Sole power to vote or to direct the vote:
0
(ii) Shared power to vote or to direct the vote:
19,501,420.50
(iii) Sole power to dispose or to direct the disposition of:
0
(iv) Shared power to dispose or to direct the disposition of:
19,501,420.50
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.
If a parent holding company has filed this schedule, pursuant to Rule 13d-1(b)(ii)(G), so indicate under Item 3(g) and attach an exhibit stating the identity and the Item 3 classification of the relevant subsidiary. If a parent holding company has filed this schedule pursuant to Rule 13d-1(c) or Rule 13d-1(d), attach an exhibit stating the identification of the relevant subsidiary.
Subsidiary
Jane Street Capital, LLC - (a) Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
Jane Street Options, LLC - (a) Broker or dealer registered under section 15 of the Act (15 U.S.C.78o);
Jane Street Global Trading, LLC - N/A;
Jane Street Singapore Pte. Ltd - N/A
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.
