Legal Insider Trading Data | Free and Professional Subscription Services | Insider Insights urn:uuid:871818b7-d5a0-738f-5467-df4da6989103 2026-09-15T08:23:07-04:00 Jonathan Moreland Profit from legal insider trading. InsiderInsights.com provides free insider trading data tools and resources, and professional grade subscription based real time Form 4 data, analysis and services GGB: DE FRANCA GUSTAVO SILVA (O) Filed a Form 3, Becoming a Registered Insider at GERDAU S A With Initial Direct Holdings of 37,511 urn:uuid:d8cc6c3a-1eb1-e91c-3f6a-77bf86ef0447 2026-08-27T16:29:05-04:00 GGB: MATTIELLO MARCOS ZILLES (O) Sold (S) 10,387 Shares of GERDAU S A for $5.11 on 6/8 urn:uuid:5752d519-4bd4-9d40-653f-86f76ef0dd3b 2026-08-14T08:55:53-04:00 GGB: MATTIELLO MARCOS ZILLES (O) Filed a Form 3, Becoming a Registered Insider at GERDAU S A With Initial Direct Holdings of 8,997 urn:uuid:46e26239-6711-cc4d-cc00-7de1a50544b9 2026-08-14T08:45:30-04:00 GGB: MATTIELLO MARCOS ZILLES (O) Filed a Form 3, Becoming a Registered Insider at GERDAU S A With Initial Direct Holdings of 10,387 urn:uuid:5bbd1993-973f-0e52-1093-476b106ae317 2026-08-14T08:45:30-04:00 GGB: JOHANNPETER ANDRE BIER GERDAU (CB) Sold (S) 99,200 Shares of GERDAU S A for $4.94 on 8/10 urn:uuid:6a1825a9-4d0b-2347-658c-20ba9c9a8a3d 2026-08-12T16:46:46-04:00 GGB: JAPUR RAFAEL DORNELES (VP,CFO,IR) Sold (S) 10k Shares of GERDAU S A for $5.10 on 8/6 urn:uuid:ac889754-3545-1752-d74d-a005766b9582 2026-08-10T16:16:24-04:00 GGB: DA CUNHA GUSTAVO WERNECK (CEO) Bought (B) 165,224 Shares of GERDAU S A for $4.73 on 6/12 urn:uuid:e52e1518-bd24-c4f6-9d53-e1f3b1827456 2026-06-15T16:39:29-04:00 GGB: WANG CHIA YUAN (O) Sold (JS*) 30,935 Shares of GERDAU S A for $4.49 on 6/2 urn:uuid:1039dc44-bdff-5009-8d58-c50806fc3b35 2026-06-03T16:54:26-04:00 GGB: WANG CHIA YUAN (O) Filed a Form 3, Becoming a Registered Insider at GERDAU S A With Initial Direct Holdings of 882 urn:uuid:b544c51b-a1b8-383d-36ce-2d2beede5fe1 2026-06-03T16:44:59-04:00 GGB: WANG CHIA YUAN (O) Filed a Form 3, Becoming a Registered Insider at GERDAU S A With Initial Direct Holdings of 226,635 urn:uuid:2c4f145e-267a-6116-34e1-a74ac8a5e46b 2026-06-03T16:44:59-04:00