GSM insider trading — Ferroglobe Plc
Over the last 90 days, insiders at Ferroglobe Plc (GSM) made 0 open-market purchases worth $0 and 1 open-market sale worth $139K, making them net sellers by $139K. The largest sale was by Garcia Cos Muntanola Beatriz (CHIEF FINANCE OFFICER), who sold 32,292 shares for $139K on Aug 14, 2026.
Updated Oct 16, 2026.
Recent GSM insider transactions
Every Form 4 filed by Ferroglobe Plc officers, directors and 10% owners in the last 90 days, newest first. P = open-market purchase, S = open-market sale; other codes are awards, option exercises, tax withholding or gifts.
| Trade date | Insider | Role | Type | Ownership | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|---|
| Sep 22, 2026 | Lopez Madrid Javier | EXECUTIVE CHAIRMAN | M · Option exercise | Direct | 28,117 | — | — | Form 4 |
| Sep 22, 2026 | Lopez Madrid Javier | EXECUTIVE CHAIRMAN | F · Tax withholding | Direct | 6,889 | $4.31 | $30K | Form 4 |
| Sep 22, 2026 | Villar-Mir De Fuentes Silvia | Director | M · Option exercise | Indirect | 28,117 | — | — | Form 4 |
| Sep 22, 2026 | Villar-Mir De Fuentes Silvia | Director | F · Tax withholding | Indirect | 6,889 | $4.31 | $30K | Form 4 |
| Aug 14, 2026 | Garcia Cos Muntanola Beatriz | CHIEF FINANCE OFFICER | S · Sale | Direct | 32,292 | $4.30 | $139K | Form 4 |
| Aug 11, 2026 | Garcia Cos Muntanola Beatriz | CHIEF FINANCE OFFICER | M · Option exercise | Direct | 36,784 | — | — | Form 4 |
| Aug 11, 2026 | Garcia Cos Muntanola Beatriz | CHIEF FINANCE OFFICER | F · Tax withholding | Direct | 5,091 | $4.63 | $24K | Form 4 |
GSM insider trading FAQ
Are insiders buying GSM stock?
Not on the open market. In the last 90 days, Ferroglobe Plc insiders made no open-market purchases, and 1 open-market sale totaling $139K. Purchases with the insider's own money are generally seen as a stronger signal than sales, which happen for many reasons (taxes, diversification, planned 10b5-1 sales).
Who are the insiders trading GSM?
Recent sellers: Garcia Cos Muntanola Beatriz.
Where does GSM insider trading data come from?
Every transaction comes from SEC Form 4 filings on EDGAR. Company officers, directors and 10% owners must file a Form 4 within two business days of buying or selling. InsiderBolt reads these filings directly from the SEC.
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Insider trading data is for informational purposes only and is not investment advice. Filings can be amended; always confirm details on SEC EDGAR.