Insider · CIK 0002120298
Marcos Zilles Mattiello
Files at GGB (GERDAU S.A.). First filing Aug 14, 2026, latest Aug 14, 2026.
In brief
Marcos Zilles Mattiello files SEC Form 4 as insider at GGB (GERDAU S.A.). Since Aug 14, 2026, Marcos Zilles Mattiello has reported 0 open-market buys worth $0 and 1 open-market sell worth $53k, the latest filed on Aug 14, 2026.
A track record needs three past buys with six months of prices behind them; Marcos Zilles Mattiello has 0, so none is measured yet.
The newest scored trade: sold $53k of GGB on Jun 8, 2026, filed Aug 14, 2026, scored 50 (moderate). In the last 12 months: 0 buys worth $0 and 1 sell worth $53k.
Where the trades landed
Last year at the company this insider has traded most, with each buy and sell on the bar it happened.
GGB: GERDAU S.A.
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
This insider’s open-market buys and sells, scored.
| Score | Company | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 50Moderate | GERDAU S.A. | $53k 10,387 shares | -100% | +64% from low-7% from high |
Transactions
Every row this insider has filed, 1 in all, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Jun 8, 2026 | GGB GERDAU S.A. | SOpen-market sale Preferred shares | -10,387 | $5.11 | $53k | 0 | Aug 14, 2026 |
Questions about Marcos Zilles Mattiello
Answered from the filings on this page, as of the latest one.
Is Marcos Zilles Mattiello buying or selling?
In the last 12 months Marcos Zilles Mattiello reported 0 open-market buys worth $0 and 1 open-market sell worth $53k on SEC Form 4; the latest was sold $53k of GGB on Jun 8, 2026. Grants, option exercises and tax withholding are not counted.
How did Marcos Zilles Mattiello's past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Marcos Zilles Mattiello has 0.
Where does Marcos Zilles Mattiello file Form 4?
Marcos Zilles Mattiello has filed Form 4 at GGB (GERDAU S.A.). A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.