Ferroglobe (GSM) CLO reports ordinary shares and long‑dated performance units

Rhea-AI Filing Summary

Ferroglobe PLC Chief Legal Officer Thomas Kletus Wiesner II filed a Form 3 reporting his equity interests in the company. He holds 27,500 ordinary shares directly. He also holds performance share units that may convert into up to 57,689, 62,924, and 66,017 ordinary shares at an exercise price of 0.0000 per share, with expiration dates in 2033, 2034, and 2035. A footnote explains these figures are the maximum shares that may vest for performance periods that have not yet ended.

Insider Trade Summary

4 transactions reported

Mixed 4 txns

Insider Wiesner Thomas Kletus II

Role Chief Legal Officer

Type	Security	Shares	Price	Value
holding	Performance share units	--	--	--
holding	Performance share units	--	--	--
holding	Performance share units	--	--	--
holding	Ordinary shares	--	--	--

Holdings After Transaction: Performance share units — 57,689 shares (Direct); Ordinary shares — 27,500 shares (Direct)

Footnotes (1)

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Understanding Insider Trading Forms →

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^*

Wiesner Thomas Kletus II

(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)

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

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	27,500	D

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	05/30/2026	05/30/2033	Ordinary shares	57,689(1)	$0	D
Performance share units	06/19/2027	06/19/2034	Ordinary shares	62,924(1)	$0	D
Performance share units	09/10/2028	09/10/2035	Ordinary shares	66,017(1)	$0	D

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 Thomas Wiesner II	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 did Ferroglobe PLC (GSM) disclose in Thomas Wiesner’s Form 3?

Ferroglobe’s Chief Legal Officer Thomas Kletus Wiesner II reported his initial equity holdings. He holds 27,500 ordinary shares and several performance share unit awards that may convert into additional ordinary shares if future performance conditions are satisfied and the units ultimately vest.

How many ordinary shares does Thomas Wiesner directly hold in Ferroglobe PLC?

Thomas Wiesner directly holds 27,500 ordinary shares of Ferroglobe PLC. This position is listed as a direct ownership holding, separate from his performance share units, which represent potential future share issuances rather than currently outstanding ordinary shares in his account.

What performance share units did Thomas Wiesner report in his Ferroglobe PLC Form 3?

He reported three performance share unit awards linked to ordinary shares. They reference maximum potential vesting of 57,689, 62,924, and 66,017 underlying ordinary shares, each at an exercise price of 0.0000, subject to performance periods that have not yet ended and future vesting outcomes.

When do Thomas Wiesner’s performance share units in Ferroglobe PLC expire?

The performance share units have expiration dates in 2033, 2034, and 2035. Specifically, they expire on May 30, 2033, June 19, 2034, and September 10, 2035, providing long-dated potential for conversion into ordinary shares if vesting conditions are ultimately met.

What does the footnote on Ferroglobe PLC’s Form 3 performance share units mean?

The footnote explains the reported amounts are maximum shares that may vest. These performance share units are tied to performance periods that have not yet ended, so the actual number of ordinary shares ultimately delivered could be lower depending on final performance results.