CCIX/Plus Automation Withdraw S-4 (File No. 333-290370)

Churchill Capital Corp IX and Plus Automation, Inc. requested withdrawal of the Registration Statement on Form S-4 (File No. 333-290370).

Rhea-AI Filing Summary

Churchill Capital Corp IX and Plus Automation, Inc. requested withdrawal of the Registration Statement on Form S-4 (File No. 333-290370). The filing was originally submitted on September 19, 2025 and was declared effective on April 2, 2026; the request is dated April 22, 2026. The registrants state they no longer plan to consummate the business combination described in the registration statement and confirm that no securities have been sold under it. The letter requests that fees paid be credited for future use under Rule 457(p) and asks the Commission to send the written withdrawal order to designated company officers and counsel.

Key Figures

SEC File Number: 333-290370 Original filing date: September 19, 2025 Declared effective: April 2, 2026 +2 more

5 metrics

SEC File Number 333-290370 Registration Statement on Form S-4

Original filing date September 19, 2025 Initial Form S-4 filing date

Declared effective April 2, 2026 Date registration statement was declared effective

Withdrawal request date April 22, 2026 Date of letter requesting withdrawal

Rule cited Rule 457(p) Request to credit fees for future use

Key Terms

Registration Statement on Form S-4, Rule 457(p), declared effective, withdrawal order

4 terms

Registration Statement on Form S-4 regulatory

"Request for Withdrawal of Registration Statement on Form S-4 (File No. 333-290370)"

A registration statement on Form S-4 is a formal filing with the U.S. Securities and Exchange Commission used when a company issues shares or other securities as part of a merger, acquisition, exchange offer or similar corporate deal. It bundles the transaction terms, financial statements, risk factors and shareholder vote materials so investors can assess the deal; think of it as a detailed prospectus or buyer’s packet that explains what you would own and how the deal could change your stake.

Rule 457(p) regulatory

"in accordance with Rule 457(p) under the Securities Act"

declared effective regulatory

"as declared effective by the Commission on April 2, 2026"

withdrawal order regulatory

"send copies of the written order granting withdrawal of the Registration Statement"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

Why did CCIX and Plus Automation (CCIX) request withdrawal of the Form S-4?

They requested withdrawal because they no longer plan to consummate the business combination. The May 22, 2026 letter states the registrants do not intend to proceed with the transaction described in the Form S-4 and confirm no securities were sold under that registration.

What is the status of the registration statement (File No. 333-290370)?

The registration statement was declared effective on April 2, 2026 and a withdrawal was requested April 22, 2026. The letter asks the Commission to grant withdrawal and to issue a written order reflecting that action.

Will the companies receive a fee credit after withdrawal of the Form S-4?

Yes — the companies requested that fees paid be credited for future use under Rule 457(p). The letter asks the Commission to apply the credit in the name of the company, subject to the rule's requirements.

Were any securities sold under the Form S-4 before the withdrawal request?

No — the registrants confirm that no securities have been sold under the registration statement. That statement appears verbatim in the withdrawal request dated April 22, 2026.

Who will receive copies of the Commission's withdrawal order for the CCIX/Plus Automation filing?

Copies were requested to be sent to Jay Taragin and Steven Spinner at the addresses in the letter and to counsel at Willkie and Wilson Sonsini. Specific names and email addresses for counsel are provided in the request.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 04/22/2026 - 04:04 PM Learn about SEC filing dates

CHURCHILL CAPITAL CORP IX		PLUS AUTOMATION, INC.
640 Fifth Avenue, 14th Floor		3315 Scott Boulevard, Suite 300
New York, NY 10019		Santa Clara, CA 95054

April 22, 2026

Via EDGAR

U.S. Securities and Exchange Commission

Division of Corporation Finance

Office of Technology

100 F Street, N.E.

Washington, DC 20549

Attention: Kathy Collins

Brittany Ebbert

Edwin Kim

Larry Spirgel

Re: Request for Withdrawal of Registration Statement on Form S-4 (File No. 333-290370)

Ladies and Gentlemen:

Pursuant to Rule 477 under the Securities Act of 1933, as amended (the “Securities Act”), Churchill Capital Corp IX (the “Company”) and Plus Automation, Inc., a Delaware corporation (“PlusAI”), respectfully request that the Securities and Exchange Commission (the “Commission”) consent to the withdrawal of the Registration Statement on Form S-4 (File No. 333-290370), together with all exhibits thereto (collectively, the “Registration Statement”), initially filed with the Commission on September 19, 2025, as further amended and as declared effective by the Commission on April 2, 2026, effective as of the date hereof.

The registrants request the withdrawal of the Registration Statement because they no longer plan to consummate the business combination described in the Registration Statement and confirm no securities have been sold thereunder.

The Company also requests that, in accordance with Rule 457(p) under the Securities Act and subject to the requirements thereof, all fees paid to the Commission in connection with the filing of the Registration Statement be credited for future use in the name of the Company.

We would be grateful if you could please send copies of the written order granting withdrawal of the Registration Statement to Jay Taragin, Chief Financial Officer of CCIX and Steven Spinner, Chief Financial Officer of PlusAI, each at their respective above-mentioned address, with copies to Gregory Astrachan at Willkie Farr & Gallagher LLP at 787 Seventh Avenue New York, NY 10019, email: gastrachan@willkie.com and Michael Nordtvedt at Wilson Sonsini Goodrich & Rosati PC, email: mnordtvedt@wsgr.com.

*************************

[Signature page follows]

Thank you for your assistance in this request. If you have any questions or require any further information, please contact Gregory Astrachan at Willkie Farr & Gallagher LLP at (212) 728-8608 or Michael Nordtvedt at Wilson Sonsini Goodrich & Rosati at (206) 883-2524.

Very truly yours,
/s/ Jay Taragin				/s/ Steven J. Spinner
Jay Taragin Churchill Capital Corp IX Chief Financial Officer				Steven J. Spinner Plus Automation, Inc. Chief Financial Officer