ioneer Ltd (IONR) SVP logs tax-related sale of 251,293 shares after performance units vest

Rhea-AI Filing Summary

ioneer Ltd senior vice president of engineering operations Matthew Weaver reported an open-market sale of 251,293 Ordinary Shares on July 2, 2026. A footnote explains the shares were sold for tax purposes in connection with the vesting of performance units on July 1, 2026. After this transaction, Weaver directly holds 11,299,711 Ordinary Shares, indicating he retained the vast majority of his position.

Insider Trade Summary

Net Seller: 251,293 shares ($27,642)

Net Sell 1 txn

Insider Weaver Matthew

Role SVP of Engineering Operations

Sold 251,293 shs ($28K)

Type	Security	Shares	Price	Value
Sale	Ordinary Shares	251,293	$0.11	$28K

Holdings After Transaction: Ordinary Shares — 11,299,711 shares (Direct, null)

Footnotes (1)

1. Represents shares sold for tax purposes in connection with vesting of performance units on July 1, 2026. AUD$0.1550 per share.

Key Figures

Shares sold: 251,293 shares Sale price: AUD$0.1550 per share Shares held after transaction: 11,299,711 shares +3 more

6 metrics

Shares sold 251,293 shares Ordinary Shares sold on July 2, 2026

Sale price AUD$0.1550 per share Price per Ordinary Share in tax-related sale

Shares held after transaction 11,299,711 shares Direct Ordinary Share holdings post-sale

Net shares sold 251,293 shares Net change in non-derivative position in this filing

Transaction code S (sale in open market or private transaction) SEC Form 4 transaction classification

Officer role SVP of Engineering Operations Position held by reporting person at ioneer Ltd

Key Terms

Ordinary Shares, performance units, open-market sale, vesting

4 terms

Ordinary Shares financial

"Matthew Weaver reported an open-market sale of 251,293 Ordinary Shares"

Ordinary shares are a type of ownership stake in a company, giving shareholders a right to participate in the company’s profits and decision-making through voting. They are similar to owning a piece of a business, and their value can rise or fall based on the company's performance. Investors buy ordinary shares to potentially earn dividends and benefit from the company's growth over time.

performance units financial

"shares sold for tax purposes in connection with vesting of performance units"

Performance units are company awards that become valuable only if specified business targets are met; they typically convert into shares or cash when performance goals are achieved. Think of them like a conditional bonus that turns into stock only if the company hits agreed milestones, so they align managers’ incentives with shareholders’ interests and can affect future share count, executive pay expense, and investor returns.

open-market sale financial

"reported an open-market sale of 251,293 Ordinary Shares"

An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.

vesting financial

"in connection with vesting of performance units on July 1, 2026"

Vesting is the process by which you earn full ownership of something, like company stock or a retirement benefit, over time. It’s like earning the right to keep a gift piece by piece the longer you stay with a company, making sure employees stay committed before they receive all the benefits.

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 07/07/2026 - 05:02 PM Accepted by SEC EDGAR 07/07/2026 - 05:01 PM Learn about SEC filing dates

FAQ

What insider transaction did ioneer Ltd (IONR) disclose for Matthew Weaver?

Matthew Weaver reported selling 251,293 Ordinary Shares of ioneer Ltd. The sale occurred on July 2, 2026 and is described as an open-market transaction. A footnote clarifies the sale was executed to cover tax obligations from recently vested performance units.

At what price were Matthew Weaver’s ioneer Ltd (IONR) shares sold?

The shares were sold at AUD$0.1550 per Ordinary Share. This per-share price is disclosed in the footnotes to the filing. The transaction reflects the tax-related sale of shares received from performance unit vesting rather than a discretionary portfolio trade.

Why did Matthew Weaver sell ioneer Ltd (IONR) shares in this Form 4?

The sale was executed for tax purposes tied to vesting performance units. A filing footnote states the shares were sold in connection with performance units that vested on July 1, 2026, indicating the transaction was driven by tax obligations rather than a standalone investment decision.

How many ioneer Ltd (IONR) shares does Matthew Weaver hold after the sale?

After the transaction, Matthew Weaver holds 11,299,711 Ordinary Shares. This post-transaction balance is reported in the Form 4 and shows that, despite the tax-related sale, he continues to maintain a substantial direct equity position in ioneer Ltd.

Is Matthew Weaver’s ioneer Ltd (IONR) share sale classified as a buy or sell transaction?

The Form 4 classifies the transaction as a sale of Ordinary Shares. It carries the SEC transaction code “S” for sale in open market or private transactions, with additional disclosure that the sale was specifically conducted to satisfy tax obligations on vested performance units.

What role does Matthew Weaver hold at ioneer Ltd (IONR) in this Form 4 filing?

Matthew Weaver is identified as SVP of Engineering Operations at ioneer Ltd. The Form 4 lists him as an officer but not a director or 10% beneficial owner. His position provides context for the significance of his reported equity holdings and tax-related share sale.

SEC Form 4

FORM 4

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

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

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:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Weaver Matthew

(Last) (First) (Middle)

C/O IONEER LTD

9460 DOUBLE R. BLVD, SUITE 200

(Street)

RENO NEVADA 85921

(City) (State) (Zip)

UNITED STATES

(Country)

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

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	SVP of Engineering Operations

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
07/02/2026

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

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

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

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Ordinary Shares(1)	07/02/2026		S		251,293	D	$0.11(2)	11,299,711	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Represents shares sold for tax purposes in connection with vesting of performance units on July 1, 2026.

2. AUD$0.1550 per share.

	/s/ April Hashimoto as Attorney-in-Fact for Matthew M. Weaver	07/07/2026
	** 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 4 (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 4: SEC 1474 (03-26)