David Marie Gabriel Girardeau - 18 Mar 2026 Form 3 Insider Report for Ferroglobe PLC (GSM)

Role: Chief People and Culture Officer. Exhibit 24 - Power of Attorney
Signature: /s/ Marta Bragado, attorney-in-fact for David Girardeau
Issuer symbol: GSM
Transactions as of: 18 Mar 2026
Net transactions value: $0
Form type: 3
Filing time: 18 Mar 2026, 17:31:44 UTC
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Girardeau David Marie, Gabriel	Chief People and Culture Officer. Exhibit 24 - Power of Attorney	THE SCALPEL, 18TH FLOOR, 52 LIME STREET, LONDON, UNITED KINGDOM	/s/ Marta Bragado, attorney-in-fact for David Girardeau	18 Mar 2026	0002116287

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
holding	GSM	Ordinary shares						55,164	18 Mar 2026	Direct

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
holding	GSM	Performance share units							18 Mar 2026	Ordinary shares	32,450	$0.000000	Direct	F1
holding	GSM	Performance share units							18 Mar 2026	Ordinary shares	54,344	$0.000000	Direct	F1
holding	GSM	Performance share units							18 Mar 2026	Ordinary shares	57,015	$0.000000	Direct	F1

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Refers to the maximum number of shares to potentially vest for performance share units subject to performance periods that have not yet ended.

Remarks:

Chief People and Culture Officer. Exhibit 24 - Power of Attorney