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BCS

Beneficial Ownership Report · SCHEDULE 13G/A

Churchill Capital Corp XI

CCXINASDAQEQUITYCurrent

Beneficial Ownership Report

Filed Aug 14, 2026Accepted Aug 14, 2026, 2:48 PM EDTFiling CIK 1304857Accession 0000912282-26-001111
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Structured filing — SCHEDULE 13G/A

primary_doc.xml

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Amendment · This filing reports the amendment as submitted.

Subject company

Company
Churchill Capital Corp XI
Company CIK
0002074973
Street
640 FIfth Avenue, 12th Floor
City
New York
State / country code
NY
Postal code
10019

Statement details

Amendment number
3
Security class
Class A Ordinary Shares
Event date
06/30/2026
Rule designation
Rule 13d-1(c)

Reporting person 1

Name
MMCAP International Inc. SPC
Citizenship / organization
E9
Reporting person type
CO
Aggregate amount owned
950,474
Percent of class
2.3
Sole voting power
0
Shared voting power
950,474
Sole dispositive power
0
Shared dispositive power
950,474
Comments
Based on 41,900,00 outstanding Class A Ordinary Shares of the Issuer as of May 13, 2026.

Reporting person 2

Name
MM Asset Management Inc.
Citizenship / organization
A6
Reporting person type
CO
Aggregate amount owned
950,474
Percent of class
2.3
Sole voting power
0
Shared voting power
950,474
Sole dispositive power
0
Shared dispositive power
950,474
Comments
Based on 41,900,00 outstanding Class A Ordinary Shares of the Issuer as of May 13, 2026.

Item 1

Issuer

Churchill Capital Corp XI

Principal executive office address

640 Fifth Avenue, 12th Floor, New York, NY 10019

Item 2

Citizenship

i) Cayman Islands ii) Ontario, Canada

Filing person

i) MMCAP International Inc. SPC ii) MM Asset Management Inc.

Principal business or residence address

i) c/o Mourant Governance Services (Cayman) Limited, 94 Solaris Avenue, Camana Bay, P. O. Box 1348, Grand Cayman KY1-1108, Cayman Islands ii) 161 Bay Street, TD Canada Trust Tower, Suite 2240, Toronto, Ontario M5J 2S1 Canada

Item 3

Not applicable indication

Y

Item 4

Percent of class

2.3%

Amount beneficially owned

950,474

Sole voting power

0

Shared voting power

950,474

Sole dispositive power

0

Shared dispositive power

950,474

Item 5

Not applicable indication

N

Ownership of 5% or less

Y

Item 6

Not applicable indication

Y

Item 7

Not applicable indication

Y

Item 8

Not applicable indication

Y

Item 9

Not applicable indication

Y

Item 10

Not applicable indication

N

Certifications

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above 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.

Exhibits

Exhibit 99.1 Joint Filing Agreement

Signature 1

Reporting person
MMCAP International Inc. SPC
Signed
Ulla Vestergaard
Title
Director
Date
08/14/2026

Signature 2

Reporting person
MM Asset Management Inc.
Signed
Hillel Meltz
Title
President
Date
08/14/2026

Filed exhibits

Company context

Churchill Capital Corp XI (“Churchill XI”) is a blank check company formed for the purpose of effecting a merger, amalgamation, share exchange, asset acquisition, share purchase, reorganization or similar business combination with one or more businesses. It may pursue an initial business combination target in any business or industry.

Current securities

Recent company filings

  1. 425 filingOct 30, 2026
  2. Regulation FD DisclosureOct 30, 2026
  3. 425 filingOct 28, 2026
  4. 425 filingOct 27, 2026
  5. 425 filingOct 26, 2026

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