ioneer (NASDAQ: IONR) director reports 990,363 Ordinary Shares in Form 3

Rhea-AI Filing Summary

ioneer Ltd director Rose Mckinney-James has filed an initial Form 3 reporting her ownership in the company. The filing shows beneficial ownership of 990,363 Ordinary Shares on a direct basis, including 188,103 Ordinary Shares underlying time-based units that are scheduled to vest on November 2, 2026. This is an initial ownership report rather than a new purchase or sale of shares.

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^*

Mckinney-James Rose

(Last) (First) (Middle)

C/O IONEER LTD

9460 DOUBLE R. BLVD, SUITE 200

(Street)

RENO NEVADA 85921

(City) (State) (Zip)

UNITED STATES

(Country)

2. Date of Event Requiring Statement (Month/Day/Year)
03/18/2026

3. Issuer Name and Ticker or Trading Symbol
ioneer Ltd [ IONR ]

3a. Foreign Trading Symbol

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

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

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

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)
Ordinary Shares	990,363(1)	D

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

Explanation of Responses:

1. Includes 188,103 Ordinary Shares underlying time-based units that vest on November 2, 2026.

	/s/ Rose McKinney-James	03/18/2026
	** 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.
* Form 3: SEC 1473 (03-26)

FAQ

What insider position does the ioneer (IONR) Form 3 report for Rose Mckinney-James?

The Form 3 reports that Rose Mckinney-James beneficially owns 990,363 Ordinary Shares of ioneer Ltd. These are held directly and represent her initial reported ownership as a director of the company.

Does the ioneer (IONR) Form 3 show any recent share purchases or sales?

No, the Form 3 does not report any recent share purchases or sales. It is an initial ownership statement that simply lists Rose Mckinney-James’s existing holdings in ioneer Ltd as of the reported date.

How many ioneer (IONR) time-based units does Rose Mckinney-James hold?

The filing states that 188,103 of the reported Ordinary Shares are underlying time-based units. These units are scheduled to vest on November 2, 2026, and are included within the total beneficial ownership figure.

Are the ioneer (IONR) shares held directly or indirectly by Rose Mckinney-James?

The Form 3 classifies all 990,363 Ordinary Shares as directly owned. The ownership code is shown as direct, indicating they are not reported as held through an intermediary entity or trust.

What is the significance of a Form 3 filing for ioneer (IONR)?

A Form 3 is an initial statement of beneficial ownership filed by company insiders. For ioneer Ltd, it establishes Rose Mckinney-James’s starting share position as a director, providing transparency into her equity stake in the company.