No active 13F manager changed its position in GERDAU S.A. last quarter. Over the last 180 days, 10 insiders sold and 1 insider bought, a net -$4.4M in open-market trades.
The legs disagree, or only one of them leans.
Not held in any tracked 13F filing yet.
Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Aug 10, 2026 | Johannpeter Andre Bier Gerdau | Insider | Sell (S) | 99K | $490K |
| Aug 6, 2026 | Japur Rafael Dorneles | Insider | Sell (S) | 10K | $51K |
| Jun 12, 2026 | Da Cunha Gustavo Werneck | CEO and Board Member | Buy (P) | 165K | $782K |
| Jun 8, 2026 | Mattiello Marcos Zilles | Insider | Sell (S) | 10K | $53K |
| Jun 2, 2026 | Metz Mauricio | Insider | Sell (S) | 7K | $34K |
| Jun 2, 2026 | Wang Chia Yuan | Insider | Sell (S) | 31K | $139K |
| May 26, 2026 | Metz Mauricio | Insider | Sell (S) | 5K | $24K |
| May 22, 2026 | Japur Rafael Dorneles | Insider | Sell (S) | 5K | $24K |
| May 19, 2026 | Peres Cesar Obino da Rosa | Officer | Sell (S) | 8K | $37K |
| May 13, 2026 | Metz Mauricio | Insider | Sell (S) | 5K | $24K |
| May 8, 2026 | Da Cunha Gustavo Werneck | CEO and Board Member | Sell (S) | 433K | $2.1M |
| May 5, 2026 | Metz Mauricio | Insider | Sell (S) | 2K | $9K |
Where institutional funds (13F), corporate insiders (Form 4) and US House members (STOCK Act) are buying or selling the same name in the same window. Green is buying, red is selling.
Insiders and Congress: last 180 days. Funds: latest 13F, top 100 holders incl. passive
| Source | Buying | Selling | Net |
|---|---|---|---|
13F funds Top 100 holders by value, passive included; the hero counts active managers only | 0 | 0 | – |
Insiders Form 4 open-market | 1 | 10 | -$4.4M |
US House STOCK Act trades | 0 | 0 | $0 |
Capital Rotation reports where institutional capital disclosed rotating, as of the latest public SEC 13F filings. It is data, not investment advice, a recommendation, or a prediction. Filings lag about 45 days and cover long US equity positions only. Past disclosed flows do not indicate future prices. Do your own research; consult a licensed advisor.
Connected entities for GERDAU S.A.
This stock page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.
curl -H "Authorization: Bearer YOUR_API_KEY" \ "https://arkolith.com/api/v1/stocks/GG/capital-change-brief"
Use Arkolith's capital_change_brief for GERDAU S.A.. Tell me what changed, whether insider activity corroborates it, and cite the SEC evidence.
13F holdings + Form 4 insider transactions + the live filing stream, joined for GG. Filings are public domain, sourced to SEC EDGAR.