GGB Insider Trading Activity and SEC Form 4 Filings
GGB insider trading summary
Over the past 12 months, insiders at Gerdau S.A. (GGB) reported 25 sales worth $6.1M by 12 insiders and 1 open-market purchase worth $782K by 1 insider on SEC Form 4. Net insider selling was $5.3M.
Latest GGB insider buys and sells
| Date | Insider | Role | Type | Value |
|---|---|---|---|---|
| Sep 23, 2026 | Claudio Johannpeter | Insider | Sell | $423K (85,607 @ $4.94) |
| Sep 17, 2026 | Rafael Gamboa Lopes | Insider | Sell | $264K (51,800 @ $5.09) |
| Aug 10, 2026 | Andre Bier Gerdau Johannpeter | Insider | Sell | $490K (99,200 @ $4.94) |
| Aug 6, 2026 | Rafael Dorneles Japur | Insider | Sell | $51K (10,000 @ $5.10) |
| Jun 12, 2026 | Cunha Gustavo Werneck Da | CEO and Board Member | Buy | $782K (165,224 @ $4.73) |
| Jun 8, 2026 | Marcos Zilles Mattiello | Insider | Sell | $53K (10,387.111 @ $5.11) |
| Jun 2, 2026 | Chia Yuan Wang | Insider | Sell | $139K (30,935 @ $4.49) |
| Jun 2, 2026 | Mauricio Metz | Insider | Sell | $34K (7,000 @ $4.85) |
| May 26, 2026 | Mauricio Metz | Insider | Sell | $24K (5,000 @ $4.70) |
| May 22, 2026 | Rafael Dorneles Japur | Insider | Sell | $24K (5,000 @ $4.75) |
Source: SEC Form 4 filings. Open-market purchases (code P) and sales (code S) only; option exercises, grants and gifts are excluded.