FERROGLOBE PLC (GSM) — insider trading
Materials · NASDAQ
FERROGLOBE PLC (GSM) has 12 reported SEC Form 4 insider transactions in our data, including 2 open-market purchases and 1 open-market sale among the most recent 12 (latest 2026-09-22).
Recent Form 4 transactions
| Date | Insider | Role | Type | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| 2026-09-22 | Villar-Mir de Fuentes Silvia | Director | Option exercise / conversion (derivative) | 28,117 | — | $0 | Form 4 |
| 2026-09-22 | Villar-Mir de Fuentes Silvia | Director | Shares withheld for taxes / exercise cost | 6,889 | $4.31 | $29.7K | Form 4 |
| 2026-09-22 | Villar-Mir de Fuentes Silvia | Director | Option exercise / conversion | 28,117 | — | $0 | Form 4 |
| 2026-09-22 | Lopez Madrid Javier | Director, Officer (EXECUTIVE CHAIRMAN) | Option exercise / conversion (derivative) | 28,117 | — | $0 | Form 4 |
| 2026-09-22 | Lopez Madrid Javier | Director, Officer (EXECUTIVE CHAIRMAN) | Shares withheld for taxes / exercise cost | 6,889 | $4.31 | $29.7K | Form 4 |
| 2026-09-22 | Lopez Madrid Javier | Director, Officer (EXECUTIVE CHAIRMAN) | Option exercise / conversion | 28,117 | — | $0 | Form 4 |
| 2026-08-14 | Garcia Cos Muntanola Beatriz | Officer (CHIEF FINANCE OFFICER) | Open-market sale | 32,292 | $4.30 | $138.9K | Form 4 |
| 2026-08-11 | Garcia Cos Muntanola Beatriz | Officer (CHIEF FINANCE OFFICER) | Option exercise / conversion (derivative) | 36,784 | — | $0 | Form 4 |
| 2026-08-11 | Garcia Cos Muntanola Beatriz | Officer (CHIEF FINANCE OFFICER) | Shares withheld for taxes / exercise cost | 5,091 | $4.63 | $23.6K | Form 4 |
| 2026-08-11 | Garcia Cos Muntanola Beatriz | Officer (CHIEF FINANCE OFFICER) | Option exercise / conversion | 36,784 | — | $0 | Form 4 |
| 2026-03-23 | Lopez Madrid Javier | Director, Officer (Executive Chairman) | Open-market purchase | 26,000 | $3.86 | $100.3K | Form 4 |
| 2026-03-23 | Villar-Mir de Fuentes Silvia | Director | Open-market purchase | 26,000 | $3.86 | $100.3K | Form 4 |
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Transaction types are the SEC Form 4 codes: open-market purchases (P) and sales (S) are the only rows that reflect open-market conviction. Awards/vesting (A), option exercises (M/X/C), shares withheld for taxes (F) and gifts (G) are compensation or mechanical, not buying or selling on the open market. Sales may be planned and non-discretionary (e.g. a Rule 10b5-1 plan); open-market buying is not a recommendation to buy. Informational only — not financial advice.
Source: SEC EDGAR Form 3/4/5. See the full company profile: FERROGLOBE PLC (GSM).
Last updated 2026-09-22 (most recent filing date).
Informational only — NOT financial advice. Insider filings are sourced from SEC EDGAR and shown with their reported dates.