UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d)

OF THE SECURITIES EXCHANGE ACT OF 1934

Date of Report (Date of earliest event reported): March 5, 2026

OneIM Acquisition Corp.

(Exact name of registrant as specified in its charter)

Cayman Islands

001-43053

98-1883783

(State or other jurisdiction

of incorporation)

(Commission File Number)

(IRS Employer

Identification No.)

11th Floor, 390 Park Avenue

New York, New York 10022

(Address of principal executive offices, including zip code)

Registrant’s telephone number, including area code: (646) 222 9570

Not Applicable

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐	Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐	Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐	Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐	Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Units, each consisting of one Class A ordinary share and one-sixth of one redeemable warrant	OIMAU	The Nasdaq Stock Market LLC
Class A ordinary shares, par value $0.0001 per share	OIM	The Nasdaq Stock Market LLC
Warrants, each whole warrant exercisable for one Class A ordinary share at an exercise price of $11.50 per share	OIMAW	The Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☒

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 8.01. Other Events.

Separate Trading of Class A Ordinary Shares and Warrants

On March 5, 2026, OneIM Acquisition Corp. (the “Company”) announced that, commencing on March 6, 2026, the holders of the units issued in the Company’s initial public offering (the “Units”), each consisting of one Class A ordinary share of the Company, par value $0.0001 per share (the “Class A Ordinary Shares”), and one-sixth of one redeemable warrant of the Company (each, a “Warrant”), with each whole Warrant entitling the holder thereof to purchase one Class A Ordinary Share for $11.50 per share, may elect to separately trade the Class A Ordinary Shares and the Warrants included in the Units. No fractional Warrants will be issued upon separation of the Units and only whole Warrants will trade. The Class A Ordinary Shares and the Warrants will trade on the Nasdaq Global Market under the symbols “OIM” and “OIMAW,” respectively. Units not separated will continue to trade on the Nasdaq Global Market under the symbol “OIMAU.” Holders of Units will need to have their brokers contact Continental Stock Transfer & Trust Company, the Company’s transfer agent, in order to separate the Units into Class A Ordinary Shares and Warrants.

Item 9.01 Financial Statement and Exhibits.

(d) Exhibits

Exhibit No.		Description

99.1		Press Release dated March 5, 2026

104		Cover Page Interactive Data File (embedded within the Inline XBRL document).

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

	ONEIM ACQUISITION CORP.

	By:	/s/ Grigorios Kapenis
	Name:	Grigorios Kapenis
	Title:	Chief Financial Officer
Dated: March 5, 2026

OneIM Acquisition Corp. 8-K