Gerdau SA (GGB) insider trading
Every open-market stock purchase and sale by Gerdau SA executives, directors, large shareholders and members of Congress, from SEC Form 4 filings. Sector: Other.
Insider activity at a glance
- Andre Bier Gerdau Johannpeter (Insider) and 4 others sold $1.3M in the last 90 days.
- Last insider buy: Gustavo Werneck Da Cunha (CEO), $782K, 4 months ago.
Last 12 months: insiders bought $782K (1 buy) and sold $6.1M (25 sales). Last close $4.85 on Sep 25, 2026.
Recent GGB insider trades
| Date | Insider | Trade | Value |
|---|---|---|---|
| Sep 23, 2026 | Claudio Johannpeter (Insider) | Sold | $423K |
| Sep 17, 2026 | Rafael Gamboa Lopes (Insider) | Sold | $264K |
| Aug 10, 2026 | Andre Bier Gerdau Johannpeter (Insider) | Sold | $490K |
| Aug 6, 2026 | Rafael Dorneles Japur (Insider) | Sold | $51K |
| Jul 15, 2026 | Marcos Eduardo Faraco Wahrhaftig (Insider) | Bought (not open market) | $404K |
| Jun 12, 2026 | Gustavo Werneck Da Cunha (CEO) | Bought | $782K |
| Jun 8, 2026 | Marcos Zilles Mattiello (Insider) | Sold | $53.1K |
| Jun 2, 2026 | Chia Yuan Wang (Insider) | Sold | $139K |
| Jun 2, 2026 | Mauricio Metz (Insider) | Sold | $34K |
| May 26, 2026 | Mauricio Metz (Insider) | Sold | $23.5K |
| May 22, 2026 | Rafael Dorneles Japur (Insider) | Sold | $23.8K |
| May 19, 2026 | Cesar Obino da Rosa Peres (Officer) | Sold | $36.8K |
| May 13, 2026 | Mauricio Metz (Insider) | Sold | $24.3K |
| May 8, 2026 | Gustavo Werneck Da Cunha (CEO) | Sold | $2.1M |
| May 8, 2026 | Gustavo Werneck Da Cunha (CEO) | Bought (not open market) | — |
| May 5, 2026 | Chia Yuan Wang (Insider) | Sold | $190K |
| May 5, 2026 | Mauricio Metz (Insider) | Sold | $9.4K |
| Apr 30, 2026 | Chia Yuan Wang (Insider) | Sold | $90.8K |
| Apr 28, 2026 | Gustavo Werneck Da Cunha (CEO) | Sold | $396K |
| Apr 28, 2026 | Chia Yuan Wang (Insider) | Sold | $344K |
| Apr 28, 2026 | Clemir Uhlein (Insider) | Sold | $173K |
| Apr 28, 2026 | Mauricio Metz (Insider) | Sold | $4.5K |
| Apr 10, 2026 | Chia Yuan Wang (Insider) | Sold | $105K |
| Apr 9, 2026 | Gustavo Werneck Da Cunha (CEO) | Sold | $208K |
| Apr 9, 2026 | Marcos Eduardo Faraco Wahrhaftig (Insider) | Sold | $50.4K |
Who's trading GGB
- Claudio Johannpeter, Insider: sold $423K (1 sale), last Sep 23, 2026
- Rafael Gamboa Lopes, Insider: sold $264K (1 sale), last Sep 17, 2026
- Andre Bier Gerdau Johannpeter, Insider: sold $490K (1 sale), last Aug 10, 2026
- Rafael Dorneles Japur, Insider: sold $74.8K (2 sales), last Aug 6, 2026
- Marcos Eduardo Faraco Wahrhaftig, Insider: sold $50.4K (1 sale), last Jul 15, 2026
- Gustavo Werneck Da Cunha, CEO: bought $782K (1 buy), sold $2.9M (4 sales), last Jun 12, 2026
- Marcos Zilles Mattiello, Insider: sold $53.1K (1 sale), last Jun 8, 2026
- Mauricio Metz, Insider: sold $95.6K (5 sales), last Jun 2, 2026
- Chia Yuan Wang, Insider: sold $1M (6 sales), last Jun 2, 2026
- Cesar Obino da Rosa Peres, Officer: sold $36.8K (1 sale), last May 19, 2026
- Clemir Uhlein, Insider: sold $173K (1 sale), last Apr 28, 2026
- Guilherme Chagas Gerdau Johannpeter, Insider: sold $563K (2 sales), last Mar 20, 2026
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