GSM Ferroglobe (GSM) Insider Trading, Ownership & Congress Trades
Mining & Metals · Metal mining · CIK 0001639877
SEC filings
Insider buyers, 180 days
0
House members buying, 1 year
0
STOCK Act, US House only, disclosed up to 45 days after the trade
Funds added, last quarter
95
13F, latest reported quarter
Conversions, 180 days
3
Codes C/M, not in net · $0 priced
What the filings say about GSM
Insiders, 180 days
-$138.9K net sold
1 seller · 0% of sales under a 10b5-1 plan
Ferroglobe insider trades (Form 4)
Form 4 buys and sells (codes P and S). Grants, option exercises
and conversions excluded.
Over the last 180 days, Ferroglobe PLC insiders sold a net $138.9K of stock across 3 Form 4 purchases and sales, with no insider buying. Source: SEC Form 4 filings, as of 2026-10-28.
Foreign private issuer: most of its insiders are exempt from SEC Form 4, but some still file it; those filings are listed below, and the record may be incomplete.
Insider
Filed
Shares
Value
Since filing
Context
- First Form 4 purchase or sale (code P or S) here by this insider on our record.
- The trade is 101.9% of the 31,693 shares held after it.
- No other insider sold within 30 days.
- 95 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: CHIEF FINANCE OFFICER Garcia Cos Muntanola Beatriz sold about $138.9K of GSM on Aug 14, 2026, the largest insider sale at the company on our record; 95 funds added in the latest 13F quarter.Context
- First Form 4 purchase or sale (code P or S) here by this insider on our record.
- The trade is 21.4% of the 121,226 shares held after it.
- 1 other insider bought within 30 days.
- 95 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: Director Villar-Mir de Fuentes Silvia bought about $100.4K of GSM on Mar 23, 2026, the largest insider purchase at the company on our record; 1 other insider bought within 30 days and 95 funds added in the latest 13F quarter.Context
- First Form 4 purchase or sale (code P or S) here by this insider on our record.
- The trade is 17.7% of the 147,200 shares held after it.
- 1 other insider bought within 30 days.
- 95 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: Executive Chairman Lopez Madrid Javier bought about $100.4K of GSM on Mar 23, 2026, the largest insider purchase at the company on our record; 1 other insider bought within 30 days and 95 funds added in the latest 13F quarter.3 transactions on record · a thin record, read with care
Since filing: total return from the first close after the filing to the latest close, dividend-adjusted. Not a forecast.
Context lines are counts over the filings above and returns from our own price history, never a price level. Not investment advice.
Seven facts, ranked against the sector ·
Rank is not a forecast
Insiders
net -$138.9K over 180 days
-$138.9K over 90 days
more than 52% of Mining & Metals
Congress
no House purchase disclosed in the last 12 months
Funds
95 funds bought in last quarter
below 52% of Mining & Metals
Revenue
no revenue reported in any filing
Margin
no margin: no revenue reported
Buybacks
no share repurchases reported
Short interest
4.2% of the float short (float per yahoo 2026-10-27) · 3.6 days to cover · settled 2026-10-15
more than 51% of Mining & Metals
What changed in the last 30 days
Nothing new filed in the last 30 days
Watch GSM
A free account keeps a watchlist and can send one email a day when insiders, funds or Congress file on the names in it. No password and no card.
The year, with the filings on it
Total return over 12 months. Each marker is a filing; hover or tap one for the detail.
-22.2%12M
Insider buyInsider sell
Indexed to 100, dividend-adjusted, not a price chart.
When a name files heavily, the largest trades are drawn first.
Who owns GSM: institutional holders (13F)
13F holdings, latest reported quarter
10,230,131 sh
$32.5M
8,126,773 sh
$25.8M
7,603,051 sh
$24.2M
5,113,924 sh
$16.3M
4,201,296 sh
$13.4M
Congress trades in GSM
No Congress trades reported
No House member has disclosed a trade in this stock. See what Congress is buying.
Activist and 5% holders (13D/13G)
No 5%+ ownership filings
Nobody has filed for crossing 5%. That is a fact, not missing data.
GSM planned insider sales (Form 144)
No planned-sale notices
No insider has filed to sell. Watch this after a run-up.
GSM mutual fund holders (N-PORT)
Funds ranked by the share of their own portfolio in this stock (N-PORT).
BALLAST SMALL/MID CAP ETF
$1.4M position · as of 2026-06-30
0.8%
Dunham Small Cap Value Fund
$328.5K position · as of 2026-07-31
0.4%
TIFF MULTI-ASSET FUND
$1.5M position · as of 2026-06-30
0.1%
Counterpoint Tactical Equity Fund
$659.9K position · as of 2026-06-30
0.1%
KraneShares Man Buyout Beta Index ETF
$9.6K position · as of 2026-06-30
0.1%
SMALL CAP EQUITY FUND
$478.5K position · as of 2026-06-30
0.0%
SEC N-PORT, monthly, about 60 days late · funds ≥ $10M ·
% is the share of the fund's own portfolio
Live price
Daily candles from TradingView, under their licence. No filings marked.
Why this name is on the desk
The complete filing record, in one place.
The record shows a net $138.9K sold by insiders over 180 days, 95 funds added last quarter. Each figure is a federal filing, dated the day it went public.
GSM financials
Fundamentals
Annual figures from XBRL filings. Pick a past date to see them as known then.
| 2025-12 | 2024-12 | 2023-12 | 2022-12 | |
|---|---|---|---|---|
| Net income | -$177.1M | $20.8M | $98.5M | $443.8M |
SEC XBRL, fiscal years, as known on 2026-10-28
GSM Stock Sonar score 3/7 axes
Find similar shapesCompareGSM ranks highest on institutional and government (40th percentile) and risk and compliance (37th), and lowest on insider conviction (26th), among Mining & Metals peers.
3 of 7 axes scored. Each is a percentile against sector peers (all companies when the sector is thin); higher is better. An unscored axis is unmeasured, not low. How it is scored
GSM filings, in plain words
Are Ferroglobe insiders buying or selling GSM?
In the 180 days to 2026-10-28, Ferroglobe insiders were net sellers, a net $138.9K across purchases and sales reported on Form 4, by 1 seller.
Read the full summary
In the 180 days to 2026-10-28, Ferroglobe insiders were net sellers of GSM, a net $138.9K across purchases and sales reported on Form 4 by 1 seller. Each figure is counted from SEC and House filings as of 2026-10-28, dated the day the filing was made public.
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