ioneer Ltd (GSCCF) VP reports 7.9M Ordinary Share stake on Form 3

Rhea-AI Filing Summary

ioneer Ltd executive Nagai Yoshio filed an initial ownership report showing direct holding of 7,935,490 Ordinary Shares. This includes 196,780 shares underlying units that vest on July 1, 2026, 457,738 vesting on July 1, 2027, 834,135 vesting on January 1, 2029, and 599,576 vesting on September 1, 2026.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Nagai Yoshio

Role VP Comm. Sales & Marketing

Type	Security	Shares	Price	Value
holding	Ordinary Shares	--	--	--

Holdings After Transaction: Ordinary Shares — 7,935,490 shares (Direct)

Footnotes (1)

1. [object Object]

Understanding Insider Trading Forms →

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^*

Nagai Yoshio

(Last) (First) (Middle)

C/O IONEER LTD

9460 DOUBLE R. BLVD, SUITE 200

(Street)

RENO 85921

(City) (State) (Zip)

(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)
	VP Comm. Sales & Marketing

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	7,935,490(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 196,780 Ordinary Shares underlying time-based units ("Units") that vest on July 1, 2026, 457,738 Ordinary Shares underlying Units that vest on July 1, 2027, 834,135 Ordinary Shares underlying Units that vest on January 1, 2029 and 599,576 Ordinary Shares underlying Units that vest on September 1, 2026.

	/s/ Yoshio Nagai	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 Form 3 filing for GSCCF disclose about insider ownership?

The Form 3 shows VP of Commercial Sales & Marketing Nagai Yoshio directly holding 7,935,490 ioneer Ltd Ordinary Shares, including several tranches of time-based units scheduled to vest between July 2026 and January 2029, establishing his initial reported stake.

How many ioneer Ltd Ordinary Shares does Nagai Yoshio report holding?

Nagai Yoshio reports direct ownership of 7,935,490 ioneer Ltd Ordinary Shares. This figure combines currently held shares and shares underlying time-based units that will vest on specific future dates, reflecting his total reported equity exposure at this time.

What future vesting equity awards are included in Yoshio’s GSCCF position?

His position includes 196,780 Ordinary Shares underlying units vesting July 1, 2026, 457,738 vesting July 1, 2027, 834,135 vesting January 1, 2029, and 599,576 vesting September 1, 2026, indicating a multi-year, time-based equity compensation structure.

Is the Form 3 for GSCCF reporting a new insider transaction?

The Form 3 does not report a buy or sell transaction; it is an initial statement of beneficial ownership. It records Nagai Yoshio’s existing holdings and time-based units, rather than signaling a market trade in ioneer Ltd shares.

What role does Nagai Yoshio hold at ioneer Ltd (GSCCF)?

Nagai Yoshio serves as Vice President of Commercial Sales & Marketing at ioneer Ltd. The Form 3 ties his equity position, including time-based vesting units, to this executive role, highlighting his financial alignment with the company’s performance.