Company · CIK 0001073404 · SIC 3310 — Steel Works, Blast Furnaces & Rolling & Finishing Mills · NYSE
GERDAU S.A. · GGB
Insider activity reported against this company. All insider holders · On EDGAR ↗
Reported at this company — common stock
| Trade | Reported (ET) | Insider | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Sep 23, 2026 SForm 4 → | Sep 25, 4:32 pm EDT | Claudio JohannpeterOther | 85,607 | $4.94 | $422,899 | 0 | −100% | |
| Sep 17, 2026 SForm 4 → | Sep 21, 4:30 pm EDT | Rafael Gamboa LopesOther | 51,800 | $5.09 | $263,662 | 83,399 | −38.3% | |
| Aug 10, 2026 SForm 4 → | Aug 12, 4:46 pm EDT | Andre Bier Gerdau JohannpeterOther | 99,200 | $4.94 | $490,048 | 247,380 | −28.6% | |
| Aug 6, 2026 SForm 4 → | Aug 10, 4:16 pm EDT | Rafael Dorneles JapurOther | 10,000 | $5.10 | $51,000 | 86,967 | −10.3% |
Reported at this company — derivatives (options, RSUs, warrants)
| Trade | Reported (ET) | Insider | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Jul 15, 2026 AForm 4 → | Aug 27, 5:00 pm EDT | Marcos Eduardo Faraco WahrhaftigOther | 107,749 | $3.75 | $404,059 | 107,749 | — | late |