Ferroglobe chairman exercises 28,117 share units

The transaction also reports 6,889 ordinary shares delivered or withheld for payment of exercise price or tax liability at $4.31 per share.

Rhea-AI Filing Summary

Ferroglobe PLC executive chairman Javier Lopez Madrid exercised 28,117 performance share units on September 22, 2026, and acquired 28,117 ordinary shares. The derivative row reports 0 performance share units following the transaction. On that date, 6,889 ordinary shares were delivered or withheld for payment of exercise price or tax liability, at $4.31 per share. The report lists indirect holdings as of September 22, 2026, of 147,200 ordinary shares through Financiera Siacapital SL, 73,890 through a corporation controlled by his spouse, and 100 held by his spouse.

Insider Trade Summary

28,117 shares exercised/converted

Exercise 6 txns

Insider Lopez Madrid Javier

Role EXECUTIVE CHAIRMAN

Type	Security	Shares	Price	Value
Exercise	PERFORMANCE SHARE UNIT	28,117	$0.00	$0.00
Exercise	ORDINARY SHARES	28,117	$0.00	$0.00
Exercise Price or Tax Liability	ORDINARY SHARES	6,889	$4.31	$30K
holding	ORDINARY SHARES	--	--	--
holding	ORDINARY SHARES	--	--	--
holding	ORDINARY SHARES	--	--	--

Holdings After Transaction: PERFORMANCE SHARE UNIT — 0 contracts (Direct); ORDINARY SHARES — 99,728 shares (Direct); ORDINARY SHARES — 147,200 shares (Indirect, By Financiera Siacapital SL); ORDINARY SHARES — 73,890 shares (Indirect, By a corporation controlled by spouse); ORDINARY SHARES — 100 shares (Indirect, By spouse)

Key Figures

Performance share units exercised: 28,117 units Ordinary shares acquired: 28,117 shares Performance share units following transaction: 0 units +5 more

8 metrics

Performance share units exercised 28,117 units September 22, 2026

Ordinary shares acquired 28,117 shares September 22, 2026

Performance share units following transaction 0 units Reported following the September 22, 2026 transaction

Shares delivered or withheld 6,889 ordinary shares Payment of exercise price or tax liability on September 22, 2026

Reported price per share $4.31 per share September 22, 2026 transaction

Indirect holding through Financiera Siacapital SL 147,200 ordinary shares As of September 22, 2026

Indirect holding through a corporation controlled by spouse 73,890 ordinary shares As of September 22, 2026

Indirect holding by spouse 100 ordinary shares As of September 22, 2026

Key Terms

PERFORMANCE SHARE UNIT, derivative security, exercise price or tax liability

3 terms

PERFORMANCE SHARE UNIT financial

"28,117 performance share units"

A performance share unit (PSU) is a form of executive or employee pay that promises shares (or the cash value of shares) only if the company meets specific performance targets over a set period. Think of it like a bonus cheque that only arrives if the company hits agreed goals — it aligns managers’ rewards with business results and signals to investors how leadership is being incentivized to grow value over time.

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.

exercise price or tax liability financial

"payment of exercise price or tax liability by delivering or withholding securities"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many GSM ordinary shares did Javier Lopez Madrid acquire?

Javier Lopez Madrid acquired 28,117 ordinary shares on September 22, 2026, following the exercise of 28,117 performance share units.

What happened to 6,889 GSM shares on September 22, 2026?

On September 22, 2026, 6,889 ordinary shares were delivered or withheld for payment of exercise price or tax liability, at a reported price of $4.31 per share.

Were Javier Lopez Madrid's GSM transactions under a Rule 10b5-1 plan?

No Rule 10b5-1 plan is reported for Javier Lopez Madrid's September 22, 2026 transactions.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 09/24/2026 - 04:01 PM Accepted by SEC EDGAR 09/24/2026 - 04:01 PM 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^*

Lopez Madrid Javier

(Last) (First) (Middle)

THE SCALPEL, 18TH FLOOR, 52 LIME STREET

(Street)

LONDON EC3M 7AF

(City) (State) (Zip)

UNITED KINGDOM

(Country)

2. Issuer Name and Ticker or Trading Symbol
Ferroglobe PLC [ GSM ]

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
09/22/2026

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	09/22/2026		M		28,117	A	$0	106,617	D
ORDINARY SHARES	09/22/2026		F		6,889	D	$4.31	99,728	D
ORDINARY SHARES								147,200	I	By Financiera Siacapital SL
ORDINARY SHARES								73,890	I	By a corporation controlled by spouse
ORDINARY SHARES								100	I	By spouse

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
PERFORMANCE SHARE UNIT	$0	09/22/2026		M			28,117	11/24/2019	11/24/2026	ORDINARY SHARES	28,117	$0	0	D

Explanation of Responses:

	/s/ Marta Bragado, attorney-in-fact for Javier Lopez Madrid	09/24/2026
	** 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)