Buy4

Churchill Capital Corp XIII

XIIIU

Total Value

$3.5M

Net $3.5M bought

Filing Date

Aug 5, 2026

1 transaction

Purchases

$3.5M

1 transaction

Trade Summary

On Aug 3, 2026, Klein Michael Stuart, See Remarks, Director, 10% Owner, purchased $3.5M of Churchill Capital Corp XIII (XIIIU) across 1 transaction. The filing covers Class A Ordinary Shares and reflects net buying of $3.5M. Reported prices ranged from $10.00. Insider transactions are sourced from SEC Form 4 disclosures and should be reviewed alongside company fundamentals and the insider's broader trading history.

Insider Information

Name: Klein Michael Stuart
Role: See Remarks, Director, 10% Owner
Location: NEW YORK, NY

Filing Details

Filing Date: Aug 5, 2026
Transaction Date: Aug 3, 2026
Accession Number: 0001213900-26-085827
Form Type: 4
Net Trading Amount: $3.5M

Non-Derivative Transactions

Date	Security	Shares	Price	Type	Value
Aug 3, 2026	Class A Ordinary Shares	350,000	$10.00	Purchase	$3.5M

Want live alerts when Klein Michael Stuart trades again?

Download Insider Trades to track XIIIU, follow insiders, and get mobile alerts when new SEC Form 4 filings are published.

iOS App Android App

Footnotes

(F1)Represents shares underlying the private placement units (each unit consisting of one Class A ordinary share and one-tenth of one warrant, each whole warrant exercisable to purchase one Class A ordinary share) directly held by Churchill Sponsor XIII LLC (the "Sponsor"), and which were acquired pursuant to a Private Placement Units Purchase Agreement by and between the Sponsor and Churchill Capital Corp XIII.
(F2)Michael Stuart Klein, the Chief Executive Officer, President and a director of the Issuer, is the controlling shareholder of M. Klein Associates, Inc., which is the managing member of the Sponsor and has voting and investment discretion with respect to the securities held by the Sponsor. As such, Mr. Klein may be deemed to possess beneficial ownership of the securities held directly by the Sponsor. Mr. Klein disclaims any beneficial ownership of the reported securities other than to the extent of any pecuniary interest he may have therein, directly or indirectly.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Klein Michael Stuart

(Last)

(First)

(Middle)

640 FIFTH AVENUE, 14TH FLOOR

(Street)

NEW YORK

10019

(City)

(State)

(Zip)

2. Issuer Name and Ticker or Trading Symbol
Churchill Capital Corp XIII [ XIIIU ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director	X	10% Owner
X	Officer (give title below)		Other (specify below)
	See Remarks

3. Date of Earliest Transaction (Month/Day/Year)
08/03/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

	Form filed by One Reporting Person
X	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Class A Ordinary Shares	08/03/2026	08/03/2026	P		350,000⁽¹⁾	A	$10	350,000⁽¹⁾	I	See footnote⁽²⁾

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)

1. Name and Address of Reporting Person^*

Klein Michael Stuart

(Last)

(First)

(Middle)

640 FIFTH AVENUE, 14TH FLOOR

(Street)

NEW YORK

10019

(City)

(State)

(Zip)

Relationship of Reporting Person(s) to Issuer

X	Director	X	10% Owner
X	Officer (give title below)		Other (specify below)
	See Remarks

1. Name and Address of Reporting Person^*

M. Klein Associates, Inc.

(Last)

(First)

(Middle)

640 FIFTH AVENUE, 14TH FLOOR

(Street)

NEW YORK

10019

(City)

(State)

(Zip)

Relationship of Reporting Person(s) to Issuer

Director	X	10% Owner
Officer (give title below)		Other (specify below)

1. Name and Address of Reporting Person^*

CHURCHILL SPONSOR XIII LLC

(Last)

(First)

(Middle)

640 FIFTH AVENUE, 14TH FLOOR

(Street)

NEW YORK

10019

(City)

(State)

(Zip)

Relationship of Reporting Person(s) to Issuer

Director	X	10% Owner
Officer (give title below)		Other (specify below)

Explanation of Responses:

1. Represents shares underlying the private placement units (each unit consisting of one Class A ordinary share and one-tenth of one warrant, each whole warrant exercisable to purchase one Class A ordinary share) directly held by Churchill Sponsor XIII LLC (the "Sponsor"), and which were acquired pursuant to a Private Placement Units Purchase Agreement by and between the Sponsor and Churchill Capital Corp XIII.

2. Michael Stuart Klein, the Chief Executive Officer, President and a director of the Issuer, is the controlling shareholder of M. Klein Associates, Inc., which is the managing member of the Sponsor and has voting and investment discretion with respect to the securities held by the Sponsor. As such, Mr. Klein may be deemed to possess beneficial ownership of the securities held directly by the Sponsor. Mr. Klein disclaims any beneficial ownership of the reported securities other than to the extent of any pecuniary interest he may have therein, directly or indirectly.

Remarks:

Chief Executive Officer, President and Chairman of the Board of Directors

	/s/ Michael Stuart Klein	08/05/2026
	M. Klein Associates, Inc., By: /s/ Lee Jay Taragin, Name: Lee Jay Taragin, Title: Authorized Person	08/05/2026
	Churchill Sponsor XIII LLC, By: M. Klein Associates, Inc., its manager, By: /s/ Lee Jay Taragin, Name: Lee Jay Taragin, Title: Authorized Person:	08/05/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

Form 4 as rendered by the SEC from accession 0001213900-26-085827.

Churchill Capital Corp XIII

Trade Summary

Company Information

Insider Information

Filing Details

Non-Derivative Transactions

Want live alerts when Klein Michael Stuart trades again?

Footnotes

SEC Form 4

SEC Filing

SEC Form 4