Ferroglobe PLC (GSM) director reports initial insider holdings on Form 3

Rhea-AI Filing Summary

Ferroglobe PLC director Villar-Mir de Fuentes Silvia filed a Form 3 reporting existing equity interests in the company. The filing shows indirect holdings of multiple performance share unit awards linked to Ferroglobe ordinary shares, all with an exercise price of 0.0000 per share and expiration dates ranging from 2026 to 2035.

A footnote explains these figures represent the maximum number of shares that may vest under performance share units for performance periods that have not yet ended, so they are contingent rather than currently owned shares. The filing also discloses direct ownership of 100 ordinary shares and additional ordinary shares held indirectly through a spouse and related entities.

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

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1. Name and Address of Reporting Person^*

Villar-Mir de Fuentes Silvia

(Last) (First) (Middle)

THE SCALPEL, 18TH FLOOR, 52 LIME STREET,

(Street)

LONDON EC3M 7AF

(City) (State) (Zip)

UNITED KINGDOM

(Country)

2. Date of Event Requiring Statement (Month/Day/Year)
03/18/2026

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

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)

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

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	100	D
Ordinary shares	73,890	I	By Panarea Capital SL
Ordinary shares	78,580	I	By spouse
Ordinary shares	121,200	I	By a corporation controlled by spouse

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
Performance share units	11/24/2019	11/24/2026	Ordinary shares	28,117	$0	I	By spouse
Performance share units	06/01/2020	06/01/2027	Ordinary shares	70,464	$0	I	By spouse
Performance share units	03/21/2021	03/21/2028	Ordinary shares	46,777	$0	I	By spouse
Performance share units	06/14/2021	06/14/2028	Ordinary shares	23,066	$0	I	By spouse
Performance share units	03/13/2022	03/13/2029	Ordinary shares	110,114	$0	I	By spouse
Performance share units	12/16/2023	12/16/2030	Ordinary shares	432,771	$0	I	By spouse
Performance share units	01/01/2024	09/09/2031	Ordinary shares	385,611	$0	I	By spouse
Performance share units	05/30/2026	05/30/2033	Ordinary shares	333,935(1)	$0	I	By spouse
Performance share units	06/19/2027	06/19/2034	Ordinary shares	273,977(1)	$0	I	By spouse
Performance share units	09/10/2028	09/10/2035	Ordinary shares	285,278(1)	$0	I	By spouse

Explanation of Responses:

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

Remarks:

Exhibit 24 - Power of Attorney

	/s/ Marta Bragado, attorney-in-fact for Silvia Villar-Mir de Fuentes	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 Ferroglobe PLC (GSM) disclose in this Form 3 filing?

The Form 3 shows director Villar-Mir de Fuentes Silvia’s existing equity interests in Ferroglobe PLC. It lists direct ownership of 100 ordinary shares and several indirect holdings, including performance share units and ordinary shares held through a spouse and related entities.

How many Ferroglobe (GSM) shares are tied to the performance share units?

The filing lists multiple performance share unit awards, each linked to specific underlying ordinary share amounts, such as 28117, 70464, and 432771 shares. A footnote clarifies these are maximum potential shares that may vest, depending on future performance outcomes and uncompleted performance periods.

Are the Ferroglobe (GSM) performance share units already vested or exercisable?

The performance share units are not fully vested yet. A footnote explains the reported underlying share numbers represent maximum shares that could vest, subject to performance periods that have not yet ended, meaning the awards are still contingent on future performance conditions.

What are the key dates for Ferroglobe (GSM) performance share unit awards?

Each performance share unit award has an exercise and expiration schedule. Expiration dates run from November 24, 2026 through September 10, 2035, showing a long-dated incentive structure intended to align leadership and related parties with Ferroglobe’s multi‑year performance.

How much direct versus indirect ownership is reported for Ferroglobe (GSM)?

Direct ownership is limited to 100 ordinary shares in the reporting person’s name. Most reported interests are indirect, held through a spouse, Panarea Capital SL, and a corporation controlled by the spouse, plus performance share units that may convert into ordinary shares if performance conditions are met.

Does this Ferroglobe (GSM) Form 3 indicate insider buying or selling activity?

The Form 3 does not indicate new buying or selling activity. It is an initial statement of beneficial ownership, listing existing direct and indirect holdings, including performance share units, rather than reporting open‑market purchases or sales of Ferroglobe PLC ordinary shares.