GSM Ferroglobe PLC: institutional ownership and insider trading
182 funds reported holding $350M of Ferroglobe PLC in their latest 13F filings; in Q2 2026 funds net bought $7.65M, with 30 new positions and 27 funds selling out; over the last 12 months insiders bought $201K and sold $139K on the open market.
Famous investors holding GSM
- Renaissance Technologies (Renaissance Technologies): $8.39M, 0.0% of the portfolio
- D. E. Shaw (D. E. Shaw & Co.): $2.77M, 0.0% of the portfolio
- Izzy Englander (Millennium Management): $1.45M, 0.0% of the portfolio
- Ken Griffin (Citadel Advisors): $1.15M, 0.0% of the portfolio
- Two Sigma (Two Sigma Investments): $42.0K, 0.0% of the portfolio
Largest institutional holders of GSM
- COOPER CREEK PARTNERS MANAGEMENT LLC — $43.3M
- Hosking Partners LLP — $33.3M
- DONALD SMITH & CO., INC. — $25.8M
- BlackRock, Inc. (BLK) — $24.2M
- BARROW HANLEY MEWHINNEY & STRAUSS LLC — $16.3M
- Old West Investment Management, LLC — $13.4M
- GRIZZLYROCK CAPITAL, LLC — $11.3M
- RENAISSANCE TECHNOLOGIES LLC — $8.39M
- CenterBook Partners LP — $8.16M
- AMERIPRISE FINANCIAL INC (AMP) — $7.95M
Recent GSM insider trades
- Aug 14, 2026: Garcia Cos Muntanola Beatriz sold 32,292 shares ($139K)
- Mar 23, 2026: Villar-Mir de Fuentes Silvia bought 26,000 shares ($100K)
- Mar 23, 2026: Lopez Madrid Javier bought 26,000 shares ($100K)
5%+ owners
- Grupo Villar Mir, S.A.U.: 35.7% (Schedule 13G/A, filed Oct 9, 2026)
- COOPER CREEK PARTNERS MANAGEMENT LLC: 7.3% (Schedule 13G/A, filed Aug 14, 2026)
Who owns the most GSM stock?
The largest institutional holders of Ferroglobe PLC in the latest 13F filings are COOPER CREEK PARTNERS MANAGEMENT LLC ($43.3M), Hosking Partners LLP ($33.3M), DONALD SMITH & CO., INC. ($25.8M).
Are insiders buying or selling GSM?
Over the last 12 months insiders bought $201K and sold $139K of Ferroglobe PLC stock on the open market (SEC Form 4).
Which famous investors own GSM?
Renaissance Technologies, D. E. Shaw, Izzy Englander, Ken Griffin, Two Sigma.
Which ETFs hold GSM?
1 ETFs and mutual funds hold it among their top 100 positions, including MGMT.