OneIM Acquisition Corp. (OIMAU) director discloses 25,000 Class B stake

Rhea-AI Filing Summary

OneIM Acquisition Corp. director Antony Sheriff reported his beneficial ownership of the company’s sponsor shares. He holds 25,000 Class B ordinary shares, par value $0.0001 per share, directly.

According to the disclosure, these Class B shares will automatically convert into Class A ordinary shares on a one-for-one basis at the time of OneIM’s initial business combination, subject to certain adjustments, and they have no expiration date. The shares were acquired under a share transfer agreement involving OneIM Sponsor LLC and the issuer.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Sheriff Antony

Role Director

Type	Security	Shares	Price	Value
holding	Class B ordinary shares, par value $0.0001 per share	--	--	--

Holdings After Transaction: Class B ordinary shares, par value $0.0001 per share — 25,000 shares (Direct)

Footnotes (1)

1. As described in the Issuer's registration statement on Form S-1 (No. 333-292356), the shares of Class B ordinary shares will automatically convert into shares of Class A ordinary shares at the time of the Issuer's initial business combination on a one-for-one basis subject to certain adjustments and have no expiration date. These shares represent the shares of Class B ordinary shares held directly by the Reporting Person, acquired pursuant to a share transfer agreement by and between the OneIM Sponsor LLC and the Issuer.

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SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0104
Estimated average burden
hours per response:			0.5

1. Name and Address of Reporting Person^*

Sheriff Antony

(Last) (First) (Middle)

C/O ONEIM ACQUISITION CORP.

11TH FLOOR, 390 PARK AVENUE

(Street)

NEW YORK NY 10022

(City) (State) (Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
01/13/2026

3. Issuer Name and Ticker or Trading Symbol
OneIM Acquisition Corp. [ OIM ]

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

5. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Class B ordinary shares, par value $0.0001 per share	(1)	(1)	Class A ordinary shares, par value $0.0001 per share	25,000	(1)	D(2)

Explanation of Responses:

1. As described in the Issuer's registration statement on Form S-1 (No. 333-292356), the shares of Class B ordinary shares will automatically convert into shares of Class A ordinary shares at the time of the Issuer's initial business combination on a one-for-one basis subject to certain adjustments and have no expiration date.

2. These shares represent the shares of Class B ordinary shares held directly by the Reporting Person, acquired pursuant to a share transfer agreement by and between the OneIM Sponsor LLC and the Issuer.

	/s/ Antony Sheriff	01/13/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What did Antony Sheriff report in this Form 3 for OneIM Acquisition Corp. (OIMAU)?

Antony Sheriff reported beneficial ownership of 25,000 Class B ordinary shares of OneIM Acquisition Corp., held directly.

What is Antony Sheriff’s relationship to OneIM Acquisition Corp. (OIMAU)?

Antony Sheriff is a director of OneIM Acquisition Corp., as indicated in the filing.

What happens to the Class B shares reported by Antony Sheriff at OneIM’s business combination?

The Class B ordinary shares will automatically convert into Class A ordinary shares on a one-for-one basis at the time of OneIM’s initial business combination, subject to certain adjustments.

Do the Class B shares reported by Antony Sheriff have an expiration date?

No. The filing states the Class B ordinary shares have no expiration date.

How did Antony Sheriff acquire the 25,000 Class B shares of OneIM Acquisition Corp.?

The filing explains that these shares were acquired under a share transfer agreement between OneIM Sponsor LLC and the issuer, and are held directly by Antony Sheriff.

Are Antony Sheriff’s holdings in OneIM Acquisition Corp. direct or indirect?

The Form 3 indicates his 25,000 Class B ordinary shares are held with direct (D) ownership.