Across the past 12 months, Gerdau insiders reported no open-market purchases or sales.
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Andre Bier Gerdau Johannpeter | Other | 247,380 | 0 | 247,380 | 40.9% | 12 Aug, 2026 |
| 2 | Cunha Gustavo Werneck Da | Ceo And Board Member | 165,224 | 0 | 165,224 | 27.3% | 15 Jun, 2026 |
| 3 | Rafael Dorneles Japur | Other | 86,967 | 0 | 86,967 | 14.4% | 10 Aug, 2026 |
| 4 | Rafael Gamboa Lopes | Other | 83,399 | 0 | 83,399 | 13.8% | 21 Sep, 2026 |
| 5 | Mauricio Metz | Other | 22,536 | 0 | 22,536 | 3.7% | 03 Jun, 2026 |
| 6 | Cesar Obino Da Rosa Peres | Officer | 8 | 0 | 8 | 0.0% | 22 May, 2026 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 23 Sep, 2026 | Claudio Johannpeter | Other | Disposed S | 85,607 | $4.94 | $422.90K | 0 | Direct |
| 17 Sep, 2026 | Rafael Gamboa Lopes | Other | Disposed S | 51,800 | $5.09 | $263.66K | 83,399 | Direct |
| 15 Jul, 2026 | Marcos Eduardo Faraco Wahrhaftig | Other | Acquired A | 107,749 | $3.75 | $404.06K | 107,749 | Direct |
| 08 Jun, 2026 | Marcos Zilles Mattiello | Other | Disposed S | 10,387 | $5.11 | $53.08K | 0 | Direct |
| 10 Aug, 2026 | Andre Bier Gerdau Johannpeter | Other | Disposed S | 99,200 | $4.94 | $490.05K | 247,380 | Direct |
| 06 Aug, 2026 | Rafael Dorneles Japur | Other | Disposed S | 10,000 | $5.10 | $51.00K | 86,967 | Direct |
| 12 Jun, 2026 | Cunha Gustavo Werneck Da | Ceo And Board Member | Acquired P | 165,224 | $4.73 | $781.51K | 165,224 | Direct |
| 02 Jun, 2026 | Mauricio Metz | Other | Disposed S | 7,000 | $4.85 | $33.95K | 22,536 | Direct |
| 02 Jun, 2026 | Chia Yuan Wang | Other | Disposed S | 30,935 | $4.49 | $138.90K | 0 | Direct |
| 26 May, 2026 | Mauricio Metz | Other | Disposed S | 5,000 | $4.70 | $23.50K | 29,536 | Direct |
| 22 May, 2026 | Rafael Dorneles Japur | Other | Disposed S | 5,000 | $4.75 | $23.75K | 96,967 | Direct |
| 19 May, 2026 | Cesar Obino Da Rosa Peres | Officer | Disposed S | 8,000 | $4.60 | $36.80K | 8 | Direct |
| 13 May, 2026 | Mauricio Metz | Other | Disposed S | 5,000 | $4.85 | $24.25K | 34,536 | Direct |
| 08 May, 2026 | Cunha Gustavo Werneck Da | Ceo And Board Member | Acquired A | 432,774 | $0.00 | $0 | 432,854 | Direct |
| 08 May, 2026 | Cunha Gustavo Werneck Da | Ceo And Board Member | Disposed S | 432,854 | $4.87 | $2.11Mn | 0 | Direct |
| 05 May, 2026 | Mauricio Metz | Other | Disposed S | 2,000 | $4.69 | $9.38K | 39,536 | Direct |
| 05 May, 2026 | Chia Yuan Wang | Other | Disposed S | 40,000 | $4.75 | $190.00K | 32,195 | Direct |
| 28 Apr, 2026 | Cunha Gustavo Werneck Da | Ceo And Board Member | Disposed S | 88,000 | $4.50 | $396.00K | 80 | Direct |
| 30 Apr, 2026 | Chia Yuan Wang | Other | Disposed S | 20,000 | $4.54 | $90.80K | 72,195 | Direct |
| 28 Apr, 2026 | Clemir Uhlein | Other | Disposed S | 38,276 | $4.51 | $172.62K | 0 | Direct |