Da Cunha Gustavo Werneck (CIK 2120774) reported 4 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-05-12). Recent activity: Buy GGB (432,774 shares), Sell GGB (432,854 shares), Sell GGB (50,000 shares), Sell GGB (50,000 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-05-12 | GERDAU S.A. (GGB) | CEO and Board Member | Buy | 432,774 | $0 |
| 2026-05-12 | GERDAU S.A. (GGB) | CEO and Board Member | Sell | 432,854 | $2.1M |
| 2026-04-10 | GERDAU S.A. (GGB) | CEO and Board Member | Sell | 50,000 | $200,500 |
| 2026-04-10 | GERDAU S.A. (GGB) | CEO and Board Member | Sell | 50,000 | $208,000 |
Source: SEC Form 4 filings · as of 2026-05-12