InsiderTrades

Johannpeter Andre Bier Gerdau

SEC CIK 2121122 · EDGAR

Buying vs selling by month open-market trades, last 24 months, GGB
BoughtSold

Companies

TickerCompanyTitleHoldingBoughtSoldTradesFirstLast
GGBGERDAU S.A.COB of Board of Directors 247.4K — $490.0K 12026-08-102026-08-10

Most active insiders at GGB, 12 months

#InsiderTitleBoughtSold
1 Da Cunha Gustavo WerneckCEO, Board Member $781.5K$2.91M
2 Wang Chia YuanSenior management —$1.01M
3 Johannpeter Guilherme Chagas GerdauVice-COB of Board —$563.3K
4 Johannpeter Andre Bier GerdauCOB of Board of Directors —$490.0K
5 Lopes Rafael GamboaEVP —$263.7K
6 Uhlein ClemirSenior Management —$172.6K
7 Metz MauricioEVP —$99.8K
8 Japur Rafael DornelesVP, CFO, IR Off —$74.8K
9 Mattiello Marcos ZillesSenior Management —$53.1K
10 Wahrhaftig Marcos Eduardo FaracoEVP —$50.4K

Transactions 1

Type
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X Filed Traded Ticker Company Insider Title Type Price Qty Owned ΔOwn Value
2026-08-12 16:46 2026-08-10 GGB GERDAU S.A. Johannpeter Andre Bier Gerdau COB of Board of Directors S - Sale $4.94 -99.2K 247.4K -29% -$490.0K

Purchase Sale Sale after option exercise All abbreviations