As of the latest Form 4 filed Jun 15, 2026.
What Gerdau SA ADR insiders — officers, directors and 10% owners — have bought and sold in their own stock, straight from their SEC Form 4 filings. Values are shares × the reported transaction price where both are disclosed.
Buys plotted up, sells down; bar height is the disclosed dollar value (shares × reported price). Our Form 4 history is only complete from mid-2026, so early months are sparse — the series fills in as more filings land. Open-market purchases and sales only.
Newest filing first — the 23 most recent filings for GGB.
| Filed | Trade date | Insider | Transaction | Shares | Price | Value | 10b5-1 | Filing |
|---|---|---|---|---|---|---|---|---|
| 2026-06-15 | 2026-06-12 | Da Cunha Gustavo Werneck CEO and Board Member | PPurchase | +165K | $4.73 | $782K | No | Form 4 ↗ |
| 2026-06-03 | 2026-06-02 | Metz Mauricio Insider | SSale | −7.00K | $4.85 | $34.0K | No | Form 4 ↗ |
| 2026-06-03 | 2026-06-02 | Wang Chia Yuan Insider | SSale | −30.9K | $4.49 | $139K | No | Form 4 ↗ |
| 2026-05-28 | 2026-05-26 | Metz Mauricio Insider | SSale | −5.00K | $4.70 | $23.5K | No | Form 4 ↗ |
| 2026-05-26 | 2026-05-22 | Japur Rafael Dorneles Insider | SSale | −5.00K | $4.75 | $23.8K | No | Form 4 ↗ |
| 2026-05-22 | 2026-05-19 | Peres Cesar Obino da Rosa Officer | SSale | −8.00K | $4.60 | $36.8K | No | Form 4 ↗ |
| 2026-05-15 | 2026-05-13 | Metz Mauricio Insider | SSale | −5.00K | $4.85 | $24.3K | No | Form 4 ↗ |
| 2026-05-12 | 2026-05-08 | Da Cunha Gustavo Werneck CEO and Board Member | SSale | −433K | $4.87 | $2.11M | No | Form 4 ↗ |
| 2026-05-12 | 2026-05-08 | Da Cunha Gustavo Werneck, CEO and Board Member | AAward | +433K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-08 | 2026-05-05 | Metz Mauricio Insider | SSale | −2.00K | $4.69 | $9.38K | No | Form 4 ↗ |
| 2026-05-07 | 2026-05-05 | Wang Chia Yuan Insider | SSale | −40.0K | $4.75 | $190K | No | Form 4 ↗ |
| 2026-05-05 | 2026-04-28 | Da Cunha Gustavo Werneck CEO and Board Member | SSale | −88.0K | $4.50 | $396K | No | Form 4 ↗ |
| 2026-05-04 | 2026-04-30 | Wang Chia Yuan Insider | SSale | −20.0K | $4.54 | $90.8K | No | Form 4 ↗ |
| 2026-04-30 | 2026-04-28 | Metz Mauricio Insider | SSale | −1.00K | $4.53 | $4.53K | No | Form 4 ↗ |
| 2026-04-30 | 2026-04-28 | Wang Chia Yuan Insider | SSale | −76.7K | $4.49 | $344K | No | Form 4 ↗ |
| 2026-04-30 | 2026-04-28 | Uhlein Clemir Insider | SSale | −38.3K | $4.51 | $173K | No | Form 4 ↗ |
| 2026-04-14 | 2026-04-10 | Metz Mauricio Insider | SSale | −1.00K | $4.24 | $4.24K | No | Form 4 ↗ |
| 2026-04-14 | 2026-04-10 | Wang Chia Yuan Insider | SSale | −25.0K | $4.21 | $105K | No | Form 4 ↗ |
| 2026-04-13 | 2026-04-09 | Wahrhaftig Marcos Eduardo Faraco Insider | SSale | −12.4K | $4.06 | $50.4K | No | Form 4 ↗ |
| 2026-04-10 | 2026-04-09 | Da Cunha Gustavo Werneck CEO and Board Member | SSale | −50.0K | $4.16 | $208K | No | Form 4 ↗ |
| 2026-04-10 | 2026-04-08 | Da Cunha Gustavo Werneck, CEO and Board Member | SSale | −50.0K | $4.01 | $201K | No | Form 4 ↗ |
| 2026-04-10 | 2026-04-08 | Wang Chia Yuan Insider | SSale | −34.0K | $4.00 | $136K | No | Form 4 ↗ |
| 2026-03-24 | 2026-03-20 | Johannpeter Guilherme Chagas Gerdau Insider | SSale | −85.6K | $3.29 | $282K | No | Form 4 ↗ |
Insiders — a company’s officers, directors and holders of more than 10% of its stock — must report any trade in that stock to the SEC on a Form 4 within two business days. Each row here is one transaction from those filings.
The transaction code tells you what happened: Purchase (P) and Sale (S) are open-market trades — the ones markets watch most; Award (A) is a granted stock or unit, Option exercise (M) converts options into shares, and Gift (G) is a transfer for no consideration. Awards, exercises and gifts are largely compensation or administrative, not a directional bet.
One caveat on sales: many are made under a Rule 10b5-1 plan scheduled months in advance, so a sale is not automatically a bearish signal. Insider activity is a noisy input — read it alongside the filings, not on its own.
See also GGB’s full analysis or the market-wide insider trading feed. The tabs above jump to GGB’s other SEC data.
Source: SEC Form 4 filings for GGB, parsed from EDGAR. Transaction prices are as reported in the filing — SEC public-domain data, not market quotes. Values are shares × reported price where both are disclosed; grants and gifts often carry no price. A delayed record of what insiders reported, not a live position or a recommendation.
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