InsiderTrades

Wang Chia Yuan

SEC CIK 2119830 · EDGAR

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

Companies

TickerCompanyTitleHoldingBoughtSoldTradesFirstLast
GGBGERDAU S.A.Senior management 0 — $1.01M 62026-04-082026-06-02

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 6

Type
Reset
X Filed Traded Ticker Company Insider Title Type Price Qty Owned ΔOwn Value
2026-06-03 16:54 2026-06-02 GGB GERDAU S.A. Wang Chia Yuan Senior Management S - Sale $4.49 -30.9K 0 -100% -$138.9K
2026-05-07 17:18 2026-05-05 GGB GERDAU S.A. Wang Chia Yuan Senior management S - Sale $4.75 -40.0K 32.2K -55% -$190.0K
2026-05-04 16:50 2026-04-30 GGB GERDAU S.A. Wang Chia Yuan Senior management S - Sale $4.54 -20.0K 72.2K -22% -$90.8K
2026-04-30 17:28 2026-04-28 GGB GERDAU S.A. Wang Chia Yuan Senior Management S - Sale $4.49 -76.7K 92.2K -45% -$344.4K
2026-04-14 16:50 2026-04-10 GGB GERDAU S.A. Wang Chia Yuan Senior Management S - Sale $4.21 -25.0K 168.9K -13% -$105.2K
2026-04-10 17:00 2026-04-08 GGB GERDAU S.A. Wang Chia Yuan Senior management S - Sale $4.00 -34.0K 193.9K -15% -$136.0K

Purchase Sale Sale after option exercise All abbreviations