Michael Stuart Klein - 18 Dec 2025 Form 4 Insider Report for Churchill Capital Corp XI (CCXI)

Reporting relationship: Chief Executive Officer, President and Chairman of the Board of Directors, Director, 10%+ Owner
Issuer ticker: CCXI
Reported as of: 18 Dec 2025
Net transaction value: +$5,000,000
SEC form: 4
Accepted by SEC: 19 Dec 2025, 17:16:36 UTC
Prior SEC filing: 16 Dec 2025
Next SEC filing: 17 Feb 2026
Source filing: View source filing
Reporting owner signature: /s/ Michael Klein

Key filing fact

Michael Stuart Klein filed Form 4 for Churchill Capital Corp XI (CCXI) on 19 Dec 2025.

Key facts

This page summarizes Michael Stuart Klein's Form 4 filing for Churchill Capital Corp XI (CCXI).
1 reported transaction and 0 derivative rows are listed below.
Accepted by SEC: 19 Dec 2025, 17:16.

Change

Previous filing in this sequence was filed on 16 Dec 2025.
Current net transaction value: +$5,000,000.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (3)

CIK 0001327392 Primary reporting owner

Klein Michael Stuart

Relationship: Chief Executive Officer, President and Chairman of the Board of Directors, Director, 10%+ Owner
Address: 640 FIFTH AVENUE,, 14TH FLOOR, NEW YORK
Signature: /s/ Michael Klein
Signature date: 19 Dec 2025

CIK 0001751504

M. Klein Associates, Inc.

Relationship: 10%+ Owner
Address: 640 FIFTH AVENUE,, 14TH FLOOR, NEW YORK
Signature: M. Klein Associates, Inc., By: /s/ Jay Lee Taragin, Name: Jay Lee Taragin, Title: Authorized Person
Signature date: 19 Dec 2025

CIK 0002078043

CHURCHILL SPONSOR XI LLC

Relationship: 10%+ Owner
Address: 640 FIFTH AVENUE,, 14TH FLOOR, NEW YORK
Signature: Churchill Sponsor XI LLC, By: M. Klein Associates, Inc., its manager, By: /s/ Jay Lee Taragin, Name: Jay Lee Taragin, Title: Authorized Person
Signature date: 19 Dec 2025

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

CCXIU transaction

Class A Ordinary Shares

Purchase

Transaction value: $5,000,000
Shares: +500,000
Change %: +3.6%
Price: $10.00
Shares after: 14,300,000
Date: 18 Dec 2025
Ownership: See footnote
Footnotes: F1, F2

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 2 footnotes

Footnote F1

Represents (1) 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 XI LLC (the "Sponsor"), and which were acquired pursuant to a Private Placement Units Purchase Agreement by and between the Sponsor and Churchill Capital Corp XI (the "Issuer"); and (2) 13,800,000 Class B ordinary shares, which shares will automatically convert into Class A ordinary shares at the time of the Issuer's initial business combination on a one-for-one basis, or at any time prior to the Issuer's initial business combination, at the option of the holder, subject to adjustment as described under the heading "Description of Securities--Founder Shares" in the Issuer's registration statement on Form S-1 (File No. 333-291626) and the registration statement on Form S-1MEF (File No. 333-292183).

Footnote F2

Michael 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 remarks

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