Ferroglobe's three largest insider shareholders as of September 29, 2026 are Madrid Javier Lopez (Executive Chairman, 147.20K shares), De Fuentes Silvia Villar-Mir (Director, 121.23K shares), De Fuentes Silvia Villar-Mir (Director, 99.73K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Madrid Javier Lopez | Executive Chairman | 99,728 | 147,200 | 246,928 | 49.4% | 24 Sep, 2026 |
| 2 | De Fuentes Silvia Villar-Mir | Director | 0 | 220,954 | 220,954 | 44.2% | 24 Sep, 2026 |
| 3 | Cos Muntanola Beatriz Garcia | Chief Finance Officer | 31,693 | 0 | 31,693 | 6.3% | 20 Aug, 2026 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 22 Sep, 2026 | De Fuentes Silvia Villar-Mir | Director | Acquired M | 28,117 | $0.00 | $0 | 106,617 | Indirect |
| 22 Sep, 2026 | Madrid Javier Lopez | Executive Chairman | Acquired M | 28,117 | $0.00 | $0 | 106,617 | Direct |
| 22 Sep, 2026 | Madrid Javier Lopez | Executive Chairman | Disposed F | 6,889 | $4.31 | $29.69K | 99,728 | Direct |
| 22 Sep, 2026 | De Fuentes Silvia Villar-Mir | Director | Disposed F | 6,889 | $4.31 | $29.69K | 99,728 | Indirect |
| 22 Sep, 2026 | Madrid Javier Lopez | Executive Chairman | Disposed M | 28,117 | $0.00 | $0 | 0 | Direct |
| 22 Sep, 2026 | De Fuentes Silvia Villar-Mir | Director | Disposed M | 28,117 | $0.00 | $0 | 0 | Indirect |
| 11 Aug, 2026 | Cos Muntanola Beatriz Garcia | Chief Finance Officer | Acquired M | 36,784 | $0.00 | $0 | 69,076 | Direct |
| 11 Aug, 2026 | Cos Muntanola Beatriz Garcia | Chief Finance Officer | Disposed F | 5,091 | $4.63 | $23.57K | 63,985 | Direct |
| 14 Aug, 2026 | Cos Muntanola Beatriz Garcia | Chief Finance Officer | Disposed S | 32,292 | $4.30 | $138.86K | 31,693 | Direct |
| 11 Aug, 2026 | Cos Muntanola Beatriz Garcia | Chief Finance Officer | Disposed M | 36,784 | $0.00 | $0 | 0 | Direct |
| 23 Mar, 2026 | De Fuentes Silvia Villar-Mir | Director | Acquired P | 26,000 | $3.86 | $100.32K | 121,226 | Indirect |
| 23 Mar, 2026 | Madrid Javier Lopez | Executive Chairman | Acquired P | 26,000 | $3.86 | $100.32K | 147,200 | Indirect |