Over the last 12 months, Gerdau insiders reported 1 buy totaling $782K and 20 sales totaling $3.0M across SEC Form 4 filings.
Scroll the table sideways for price, value and marks.
| Date | Insider | Type | Shares | Avg price | Value | Δ stake | Marks |
|---|---|---|---|---|---|---|---|
| Aug 10, 2026 | Johannpeter Andre Bier Gerdau | ▼ Sale | 99,200 | $4.94 | $490K | -28.6% | — |
| Aug 6, 2026 | Japur Rafael Dorneles | ▼ Sale | 10,000 | $5.1 | $51K | -10.3% | — |
| Jun 12, 2026 | Da Cunha Gustavo WerneckCEO and Board Member · O | ▲ Buy | 165,224 | $4.73 | $782K | — | — |
| Jun 8, 2026 | Mattiello Marcos Zilles | ▼ Sale | 10,387.111 | $5.11 | $53K | -100% | late |
| Jun 2, 2026 | Metz Mauricio | ▼ Sale | 7,000 | $4.85 | $34K | -23.7% | — |
| Jun 2, 2026 | Wang Chia Yuan | ▼ Sale | 30,935 | $4.49 | $139K | -100% | — |
| May 26, 2026 | Metz Mauricio | ▼ Sale | 5,000 | $4.7 | $24K | -14.5% | — |
| May 22, 2026 | Japur Rafael Dorneles | ▼ Sale | 5,000 | $4.75 | $24K | -4.9% | — |
| May 5, 2026 | Metz Mauricio | ▼ Sale | 2,000 | $4.69 | $9K | -4.8% | — |
| May 5, 2026 | Wang Chia Yuan | ▼ Sale | 40,000 | $4.75 | $190K | -55.4% | — |
| Apr 30, 2026 | Wang Chia Yuan | ▼ Sale | 20,000 | $4.54 | $91K | -21.7% | — |
| Apr 28, 2026 | Da Cunha Gustavo WerneckCEO and Board Member · O | ▼ Sale | 88,000 | $4.5 | $396K | -99.9% | late |
| Apr 28, 2026 | Metz Mauricio | ▼ Sale | 1,000 | $4.53 | $5K | -2.4% | — |
| Apr 28, 2026 | Wang Chia Yuan | ▼ Sale | 76,700 | $4.49 | $344K | -45.4% | — |
| Apr 28, 2026 | Uhlein Clemir | ▼ Sale | 38,276 | $4.51 | $173K | -100% | — |
| Apr 10, 2026 | Metz Mauricio | ▼ Sale | 1,000 | $4.24 | $4K | -2.3% | — |
| Apr 10, 2026 | Wang Chia Yuan | ▼ Sale | 25,000 | $4.21 | $105K | -12.9% | — |
| Apr 9, 2026 | Wahrhaftig Marcos Eduardo Faraco | ▼ Sale | 12,419 | $4.06 | $50K | -100% | — |
| Apr 9, 2026 | Da Cunha Gustavo WerneckCEO and Board Member · O | ▼ Sale | 100,000 | $4.08 | $409K | -53.2% | 2 tranches |
| Apr 8, 2026 | Wang Chia Yuan | ▼ Sale | 34,000 | $4 | $136K | -14.9% | — |
| Mar 20, 2026 | Johannpeter Guilherme Chagas Gerdau | ▼ Sale | 85,607 | $3.29 | $282K | -100% | — |
The same Form 4 data over REST or MCP, already grouped into events with the plan flag and the dollar value read. A free key does 100 calls a day and needs no card. Prefer email? Gerdau filings can reach your inbox instead.
Corporate insiders — officers, directors and 10%+ owners — must report their trades to the SEC on Form 4 within two business days. This page shows open-market activity: purchases (code P), sales (S) and dispositions back to the issuer (D). Scheduled compensation events such as stock grants and option exercises are also filed on Form 4 but carry no trading signal, so they are not shown and counts here can be lower than the raw EDGAR filing total. We group each filing's transactions into one economic event (a laddered 10b5-1 sale is one event, not 25 rows), flag pre-arranged plans and late filings, and link every event to its AI-scored article in the $GGB feed.