Ferroglobe PLC
Ferroglobe PLC (GSM) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · GSM · as of Sep 30, 2025
Ownership Breakdown
161
Institutional Holders
▲ 23 vs Q2
$502.38M
Total Inst. Value
▲ $97.60M vs Q2
186.86M
Shares Outstanding
freeFloat 56.05%
110.48M
13F Shares Held
▲ 184,936 vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
GSM largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
COOPER CREEK PARTNERS MANAGEMENT LLC metal mining | 14.79M | 7.86% | 7.86% | $67.30B | Nov 14, 2025 | ▼ 137.6K |
HOSKING PARTNERS LLP metal mining | 10.87M | 5.78% | 5.78% | $49.48B | Oct 23, 2025 | ▲ 95.6K |
DONALD SMITH & CO., INC. metal mining | 7.55M | 4.01% | 4.01% | $34.37B | Nov 13, 2025 | ▼ 257.2K |
BARROW HANLEY MEWHINNEY & STRAUSS LLC metal mining | 6.93M | 3.69% | 3.69% | $31.55B | Nov 13, 2025 | ▼ 411.3K |
BLACKROCK, INC. metal mining | 6.81M | 3.62% | 3.62% | $30.97B | Nov 12, 2025 | ▲ 306.1K |
GRIZZLYROCK CAPITAL, LLC metal mining | 4.15M | 2.21% | 2.21% | $18.90B | Nov 14, 2025 | ▼ 386.7K |
WOLF HILL CAPITAL MANAGEMENT, LP metal mining | 3.92M | 2.08% | 2.08% | $17.83B | Nov 14, 2025 | ▼ 3.76M |
OLD WEST INVESTMENT MANAGEMENT, LLC metal mining | 3.24M | 1.72% | 1.72% | $14.73B | Nov 5, 2025 | ▲ 146.4K |
RENAISSANCE TECHNOLOGIES LLC metal mining | 3.09M | 1.64% | 1.64% | $14.05B | Nov 13, 2025 | ▼ 32.0K |
ROYCE & ASSOCIATES LP metal mining | 2.64M | 1.40% | 1.40% | $11.99B | Nov 12, 2025 | ▼ 175.0K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
25
Increased
+7.17M shares5
New Positions
first time holders15
Decreased
−8.32M shares0
Sold Out
fully exitedNet shares change (top 50)
1.15M
+7.17M / −8.32M
Net new holders
+15
5 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
GSM insider trading · insider activity
Source: SEC Form 4
Insiders have been net buyers of shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
0
Buy transactions
0
Sell transactions
0.00
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Villar-Mir de Fuentes Silvia director | Mar 23, 2026 | Purchase | 26,000 | $3.86 | $100.3K | 121.2K | Form 4 ↗ |
Lopez Madrid Javier Executive Chairman | Mar 23, 2026 | Purchase | 26,000 | $3.86 | $100.3K | 147.2K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Ferroglobe PLC (GSM) is primarily owned by institutional investors, who hold approximately 59.1% of total shares outstanding. Company insiders own approximately 43.95%, while retail and public investors account for the remaining 0.00%.
The largest institutional shareholder of Ferroglobe PLC is COOPER CREEK PARTNERS MANAGEMENT LLC, holding approximately 14.79 million shares — equal to 7.86% of outstanding shares — as of September 30, 2025.
A total of 161 institutional investors currently hold GSM stock, with a combined institutional value of approximately $502,375,767 as of the most recent 13F filing period.
Frequently asked questions
GSM ownershipFerroglobe PLC (GSM) is primarily owned by institutional investors, who hold approximately 59.1% of shares. The largest shareholder is COOPER CREEK PARTNERS MANAGEMENT LLC with a 7.86% stake. Company insiders hold 43.95%. Data sourced from SEC Form 13F as of September 30, 2025.