5E Advanced Materials (FEAM) director gets 6,516 RSUs, withholds shares for taxes

Rhea-AI Filing Summary

5E Advanced Materials, Inc. director Jonathan A. Siegler reported equity compensation activity involving restricted stock units and related tax withholding. On June 30, 2026, he received a grant of 6,516 restricted stock units, each representing a contingent right to one share of common stock under the company’s Amended and Restated 2022 Equity Compensation Plan. The RSUs vested on July 1, 2026 and were converted into 6,516 shares of common stock. To satisfy tax obligations, 2,411 common shares were disposed of at $1.44 per share as a tax-withholding transaction rather than an open-market sale. After these compensation-related transactions, Siegler directly holds 4,105 shares of common stock, reflecting a net increase in his equity position.

Insider Trade Summary

6,516 shares exercised/converted

Mixed 4 txns

Insider Siegler Jonathan A

Role null

Type	Security	Shares	Price	Value
Exercise	Restricted Stock Unit	6,516	$0.00	--
Exercise	Common Stock	6,516	$0.00	--
Tax Withholding	Common Stock	2,411	$1.44	$3K
Grant/Award	Restricted Stock Unit	6,516	$0.00	--

Holdings After Transaction: Restricted Stock Unit — 0 shares (Direct, null); Common Stock — 6,516 shares (Direct, null)

Footnotes (1)

1. Each restricted stock unit ("RSU") represents a contingent right to receive one share of 5E Advanced Materials, Inc. common stock. RSUs granted on June 30, 2026 pursuant to the Issuer's Amended and Restated 2022 Equity Compensation Plan. The RSUs vested on July 1, 2026.

Key Figures

RSUs granted: 6,516 restricted stock units Shares from RSU vesting: 6,516 shares of common stock Tax-withholding shares: 2,411 shares at $1.44/share +1 more

4 metrics

RSUs granted 6,516 restricted stock units Grant on June 30, 2026 under 2022 Equity Compensation Plan

Shares from RSU vesting 6,516 shares of common stock Conversion upon vesting on July 1, 2026

Tax-withholding shares 2,411 shares at $1.44/share Tax-withholding disposition of common stock on July 1, 2026

Shares held after transactions 4,105 shares of common stock Direct ownership following July 1, 2026 transactions

Key Terms

Restricted Stock Unit, tax-withholding disposition, derivative security, Equity Compensation Plan

4 terms

Restricted Stock Unit financial

"Each restricted stock unit ("RSU") represents a contingent right to receive one share of 5E Advanced Materials, Inc. common stock."

A restricted stock unit is a promise from a company to give an employee shares of stock after certain conditions are met, like staying with the company for a set amount of time. It’s like earning a bonus that turns into company stock once you’ve proven your commitment, making it a way to motivate and reward employees.

tax-withholding disposition financial

"Payment of exercise price or tax liability by delivering securities"

A tax-withholding disposition is an event or transaction—such as selling or transferring securities, exercising options, or receiving compensation—that triggers a requirement to hold back part of the payment and remit it to tax authorities. It matters to investors because it reduces the cash they receive immediately and can change the timing and amount of taxable income, like a cashier taking a portion of your sale proceeds to pay taxes before you get the rest.

derivative security financial

"Exercise or conversion of derivative security"

A derivative security is a financial contract whose value comes from the price or performance of something else, such as a stock, bond, commodity, or market index. For investors it acts like an insurance policy or a wager: it can be used to protect against losses, lock in prices, or amplify gains and losses, so it can change a portfolio’s risk and potential return without owning the underlying asset directly.

Equity Compensation Plan financial

"RSUs granted on June 30, 2026 pursuant to the Issuer's Amended and Restated 2022 Equity Compensation Plan."

A plan by which a company gives employees, directors or contractors ownership or the right to buy ownership in the company through stock, options or similar awards — think of promising slices of the company pie as part of someone's pay. It matters to investors because these awards can change the number of shares outstanding, affect reported profits and influence management’s decisions; large or generous plans can dilute existing holders and alter incentives over time.

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 07/02/2026 - 08:42 AM Accepted by SEC EDGAR 07/02/2026 - 08:42 AM Learn about SEC filing dates

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^*

Siegler Jonathan A

(Last) (First) (Middle)

9329 MARIPOSA ROAD

SUITE 210

(Street)

HESPERIA CALIFORNIA 92344

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
5E Advanced Materials, Inc. [ FEAM ]

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/30/2026

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
Common Stock	07/01/2026		M		6,516	A	(1)	6,516	D
Common Stock	07/01/2026		F		2,411	D	$1.44	4,105	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
Restricted Stock Unit	(1)	06/30/2026		A		6,516		(2)	(2)	Common Stock	6,516	$0.00	6,516	D
Restricted Stock Unit	(1)	07/01/2026		M			6,516	(2)	(2)	Common Stock	6,516	$0.00	0.00	D

Explanation of Responses:

1. Each restricted stock unit ("RSU") represents a contingent right to receive one share of 5E Advanced Materials, Inc. common stock.

2. RSUs granted on June 30, 2026 pursuant to the Issuer's Amended and Restated 2022 Equity Compensation Plan. The RSUs vested on July 1, 2026.

Remarks:

	/s / Joshua Malm, Attorney-in-Fact for Jonathan Siegler	07/02/2026
	** 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)

FAQ

What insider transactions did FEAM director Jonathan A. Siegler report?

Jonathan A. Siegler reported a grant and vesting of 6,516 restricted stock units that converted into common shares, along with a tax-withholding disposition of 2,411 shares at $1.44 per share to cover tax liabilities.

How many FEAM shares did Jonathan A. Siegler receive from RSU vesting?

Upon vesting on July 1, 2026, 6,516 restricted stock units converted into 6,516 shares of common stock. These shares came from equity compensation rather than an open-market purchase, increasing his direct stock ownership before tax withholding.

Why were 2,411 FEAM shares disposed of in Siegler’s Form 4 filing?

The 2,411 shares were disposed of as a tax-withholding transaction at $1.44 per share. This means shares were delivered to cover tax liabilities associated with RSU vesting, not sold as a discretionary open-market trade.

What is Jonathan A. Siegler’s FEAM shareholding after these transactions?

After the RSU grant, vesting, and tax-withholding disposition, Jonathan A. Siegler directly holds 4,105 shares of common stock. This reflects his post-transaction equity position as reported in the Form 4 filing data for 5E Advanced Materials, Inc.

What equity award did Jonathan A. Siegler receive from 5E Advanced Materials (FEAM)?

He received a grant of 6,516 restricted stock units on June 30, 2026 under the company’s Amended and Restated 2022 Equity Compensation Plan. Each RSU represents a contingent right to receive one share of common stock upon vesting.