GERDAU S.A. (GGB) insider buying and selling
In the last 90 days at GERDAU S.A. (GGB), no insider made an open-market purchase and 1 insider made 1 open-market sale worth $490K, as reported on SEC Form 4. Over the last 12 months, 1 insider bought $782K of the stock, led by Cunha Gustavo Werneck Da (CEO), who bought $782K on Jun 12, 2026; 8 insiders sold $2.0M.
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Unlock GGBRecent open-market insider trades
Trades by the same insider within a week are shown as one line.
| Date | Insider | Type | Shares | Price | Value |
|---|---|---|---|---|---|
| Andre Bier Gerdau Johannpeter Officer | Open market sale | 99,200 | $4.94 | $490K | |
| Cunha Gustavo Werneck Da CEO | Open market purchase | 165,224 | $4.73 | $782K | |
| Marcos Zilles Mattiello Officer | Open market sale | 10,387 | $5.11 | $53K | |
| Chia Yuan Wang Officer | Open market sale | 30,935 | $4.49 | $139K | |
| Mauricio Metz Officer | Open market sale 2 trades | 12,000 | avg. $4.79 | $57K | |
| Rafael Dorneles Japur Officer | Open market sale | 5,000 | $4.75 | $24K | |
| Cesar Obino da Rosa Peres Officer | Open market sale | 8,000 | $4.60 | $37K | |
| Mauricio Metz Officer | Open market sale | 5,000 | $4.85 | $24K | |
| Chia Yuan Wang Officer | Open market sale 3 trades | 136,700 | avg. $4.57 | $625K | |
| Mauricio Metz Officer | Open market sale 2 trades | 3,000 | avg. $4.64 | $14K | |
| Cunha Gustavo Werneck Da CEO | Open market sale | 88,000 | $4.50 | $396K | |
| Clemir Uhlein Officer | Open market sale | 38,276 | $4.51 | $173K |
What the GGB insider trades really mean
The table above is the public summary. With an Insider Intel account you get the analysis behind it, for GERDAU S.A. and every other stock we track:
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Questions about GGB insider trading
Who bought GERDAU S.A. (GGB) stock recently?
Insiders who bought GERDAU S.A. stock on the open market in the last 12 months: Cunha Gustavo Werneck Da ($782K). The most recent purchase was reported on Jun 12, 2026.
Are insiders buying or selling GGB?
Over the last 12 months insiders were net sellers of GGB on discretionary trades: $782K bought against $2.0M sold (scheduled and tax-related sales excluded).
What is a sell-to-cover or 10b5-1 sale?
A 10b5-1 sale is scheduled in advance under a pre-arranged plan, and a sell-to-cover sale is made to pay tax on vesting shares. Neither is a fresh decision to sell, so they say less about an insider's view than a discretionary sale.
Where does this data come from?
Officers, directors and large shareholders report their trades to the SEC on Form 4. This page lists the open-market purchases and sales by individual insiders from those public filings; funds and other institutions are not shown.
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How to read this page
Officers, directors and large shareholders must report their trades in company shares to the SEC on Form 4. This page lists open-market purchases and sales by individual insiders: trades made on the stock exchange at the going price. Funds and other institutions are not shown here.
Information from SEC EDGAR Form 4 filings, shown for general information only. It is not financial advice and does not recommend buying or selling any security. Trades are shown by transaction date and may be reported up to two business days later.