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[SCHEDULE 13D/A] Churchill Capital Corp X Unit SEC Filing

Filing Impact
(Low)
Filing Sentiment
(Neutral)
Form Type
SCHEDULE 13D/A
Rhea-AI Filing Summary

Churchill Capital Corp X reporting persons (Churchill Sponsor X LLC, M. Klein Associates, Inc. and Michael Klein) filed Amendment No. 1 to a Schedule 13D reporting beneficial ownership of 10,650,000 ordinary shares, representing 20.4% of the Class A ordinary shares (includes 300,000 Class A and 10,350,000 Class B convertible one-for-one on closing).

The amendment discloses a definitive Merger Agreement to combine Churchill with ColdQuanta, Inc. through a two-step merger and related Transactions, including a $126,547,600 PIPE at $10.00 per share. It also describes an Amended and Restated Registration Rights Agreement with specified resale registration timing, an Amended and Restated Sponsor Agreement with 1,500,000 sponsor shares that vest upon a $12 VWAP trigger or change of control, and an Advisory Agreement paying a $250,000 quarterly retainer to The Klein Group.

Positive
  • $126,547,600 PIPE committed at $10.00 per share, providing significant financing support for the planned business combination
  • Sponsor and insiders committed to vote in favor of the Merger Agreement, reducing execution risk for closing the Transactions
  • Registration rights provide a timeline for resale registration (filing within 30 business days; effectiveness windows), supporting post-close liquidity
  • Sponsor share vesting tied to $12 VWAP aligns sponsor incentives with long-term stock performance
Negative
  • 180-day transfer restrictions (or $12 VWAP trigger) limit immediate liquidity for new holders and insiders
  • Advisory Agreement commits $250,000 per quarter in fixed cash retainer to The Klein Group, creating an ongoing expense
  • Sponsor Shares forfeiture risk if $12 trigger not met within five years could concentrate governance outcomes or affect alignment

Insights

TL;DR: Material SPAC business combination plus a $126.5M PIPE and sponsor lockups are disclosed; this meaningfully affects post-close capital structure and liquidity.

The filing documents a definitive Merger Agreement to acquire ColdQuanta and a committed PIPE of $126,547,600 at $10.00 per share, which, if closed, will supply near-term cash to the combined company and condition the closing of the Transactions. Registration rights and resale timing (30 business days to file; effectiveness windows of 105/165 days or 90/150 days for PIPE resales) are standard but important for liquidity. Sponsor unvested shares (1,500,000) subject to a $12 VWAP vesting threshold align sponsor incentives with market performance. Advisory fees ($250,000/quarter) create ongoing cash obligations. Overall, the disclosure is materially impactful for shareholders due to the financing and governance terms.

TL;DR: Sponsor and insiders agreed to vote commitments and transfer restrictions that support transaction approval and limit near-term share supply.

The Amended and Restated Sponsor Agreement requires the Sponsor and Insiders to vote in favor of the Merger and related SPAC matters and imposes transfer restrictions and anti-redemption commitments, which reduce transaction execution risk from insider opposition. The A&R Registration Rights Agreement contains customary demand and piggyback registration rights but includes a 180-day lock-up (or $12 VWAP trigger) limiting immediate resale. These governance commitments are material to investor expectations about share supply, voting outcomes, and post-closing alignment between insiders and public investors.






If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of §§ 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box.

The information required on the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).






SCHEDULE 13D




Comment for Type of Reporting Person:
(1) Includes 300,000 shares of the Issuer's Class A ordinary shares, $0.0001 par value ("Class A Ordinary Shares") and 10,350,000 of the Issuer's Class B ordinary shares, $0.0001 par value ("Class B Ordinary Shares" and, together with the Class A Ordinary Shares, the "Ordinary Shares"), which are automatically convertible 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 more fully described under the heading "Description of Securities-Founder Shares" in the Issuer's registration statement on Form S-1 (File Nos. 333- 286799 and 333-287245). Michael Klein, the Chief Executive Officer and Director of the Issuer, is the sole stockholder of M. Klein Associates, Inc., which is the managing member of Churchill Sponsor X LLC (the "Sponsor"), and accordingly Mr. Klein may be deemed to have beneficial ownership of securities reported herein. Mr. Klein disclaims any ownership of securities reported herein other than to the extent of any pecuniary interest he may have therein, directly or indirectly.


SCHEDULE 13D




Comment for Type of Reporting Person:
(1) Includes 300,000 shares of the Issuer's Class A Ordinary Shares and 10,350,000 of the Issuer's Class B Ordinary Shares, which are automatically convertible 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 more fully described under the heading "Description of Securities-Founder Shares" in the Issuer's registration statement on Form S-1 (File Nos. 333- 286799 and 333-287245). Michael Klein, the Chief Executive Officer and Director of the Issuer, is the controlling shareholder of M. Klein Associates, Inc., which is the managing member of the Sponsor, and accordingly Mr. Klein may be deemed to have beneficial ownership of securities reported herein. Mr. Klein disclaims any ownership of securities reported herein other than to the extent of any pecuniary interest he may have therein, directly or indirectly.


SCHEDULE 13D




Comment for Type of Reporting Person:
(1) Includes 300,000 shares of the Issuer's Class A Ordinary Shares and 10,350,000 of the Issuer's Class B Ordinary Shares, which are automatically convertible 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 more fully described under the heading "Description of Securities-Founder Shares" in the Issuer's registration statement on Form S-1 (File Nos. 333- 286799 and 333-287245). Michael Klein, the Chief Executive Officer and Director of the Issuer, is the controlling shareholder of M. Klein Associates, Inc., which is the managing member of the Sponsor, and accordingly Mr. Klein may be deemed to have beneficial ownership of securities reported herein. Mr. Klein disclaims any ownership of securities reported herein other than to the extent of any pecuniary interest he may have therein, directly or indirectly.


SCHEDULE 13D


Churchill Sponsor X LLC
Signature:/s/ Jay Taragin
Name/Title:by M Klein Associates, Inc., its managing member
Date:09/11/2025
Signature:/s/ Jay Taragin
Name/Title:Jay Taragin / Authorized Signatory
Date:09/11/2025
M. Klein Associates, Inc.
Signature:/s/ Jay Targin
Name/Title:Jay Taragin / Authorized Signatory
Date:09/11/2025
Michael Klein
Signature:/s/ Michael Klein
Name/Title:Michael Klein
Date:09/11/2025

FAQ

What percentage of Churchill Capital Corp X does the reporting group own (CCCXU)?

The Reporting Persons beneficially own 10,650,000 ordinary shares, representing 20.4% of the Class A ordinary shares.

How large is the PIPE financing disclosed in the Schedule 13D/A for CCCXU?

The PIPE Investment is for $126,547,600 at a purchase price of $10.00 per share.

Are there resale or lock-up restrictions on shares issued in the transaction?

Yes. New Holders agreed not to transfer shares until the earlier of (a) 180 days after Closing or (b) when VWAP equals or exceeds $12.00 during any 15 trading days within a 180-day period; similar restrictions apply to former Company securityholders.

What are the key sponsor vesting terms disclosed?

1,500,000 Sponsor Shares will unvest at Closing and will revest upon either (i) a $12 VWAP vesting trigger as described or (ii) a qualifying change of control; if not achieved within five years, the shares are forfeited.

What ongoing fees does Churchill commit under the Advisory Agreement?

The Advisory Agreement provides for a fixed cash retainer of $250,000 per quarter payable to The Klein Group, LLC, effective upon Closing.
Churchill Capital Corp X

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