ioneer Ltd (NASDAQ: IONR) CFO April Hashimoto files initial Form 3

Rhea-AI Filing Summary

ioneer Ltd filed an initial insider ownership report for Chief Financial Officer April Hashimoto. This Form 3 identifies her as an officer of the company but does not list any stock or option transactions, so it serves mainly as a baseline disclosure of her status as a reporting insider.

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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

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1. Name and Address of Reporting Person^*

HASHIMOTO APRIL

(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)

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

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

Explanation of Responses:

No securities are beneficially owned.

	/s/ April Hashimoto	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 does the April Hashimoto Form 3 filing for ioneer Ltd (IONR) show?

The Form 3 shows that April Hashimoto is a reporting insider of ioneer Ltd serving as Chief Financial Officer. It is an initial ownership report and does not list any stock purchases, sales, or option exercises.

Did April Hashimoto buy or sell ioneer Ltd (IONR) shares in this Form 3?

No, this Form 3 does not report any buy or sell transactions by April Hashimoto. The transaction section is empty, so the filing functions purely as an initial insider ownership and status disclosure.

What insider role is disclosed for April Hashimoto at ioneer Ltd (IONR)?

The filing identifies April Hashimoto as an officer of ioneer Ltd with the title Chief Financial Officer. It also confirms she is not listed as a director or a ten percent owner in this disclosure.

Is this ioneer Ltd (IONR) Form 3 related to derivative securities or options?

The Form 3 does not show any derivative securities or option positions for April Hashimoto. The derivative summary section is empty, indicating no options, warrants, or similar instruments are reported in this filing.

Does the April Hashimoto Form 3 for ioneer Ltd (IONR) indicate large insider activity?

No, the Form 3 does not indicate any insider trading activity. It reports zero buy and sell transactions and zero shares in the transaction summary, reflecting only her status as Chief Financial Officer and a reporting person.