Who owns GERDAU S.A.?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of GGB from SEC Form 13F filings across 214 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 214 institutions disclosed 362.0M shares of GERDAU S.A. worth $1.46B — about 18.4% of shares outstanding; the largest disclosed holder is ACADIAN ASSET MANAGEMENT LLC. Source: SEC Form 13F filings, parsed by EvidInvest.
214
13F holders
$1.46B
value, 2026 filers
18.4%
of shares outstanding (362.0M sh)
49
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30 · % of fund = share of the manager's own book · % of co. = share of GGB's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | ACADIAN ASSET MANAGEMENT LLC | 48.7M | $196.6M | 0.2% | 2.5% | +273.2% |
| 2 | Capital World Investors | 26.9M | $108.7M | 0.0% | 1.4% | -2.3% |
| 3 | UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 25.7M | $104.0M | 0.0% | 1.3% | +1323.5% |
| 4 | CONTRARIAN CAPITAL MANAGEMENT, L.L.C. | 19.1M | $77.0M | 25.2% | 1% | 0.0% |
| 5 | BlackRock, Inc. | 18.2M | $73.6M | 0.0% | 0.9% | +67.9% |
| 6 | DONALD SMITH & CO., INC. | 17.5M | $70.7M | 1.3% | 0.9% | -27.5% |
| 7 | Aquamarine Financial (Cayman) Ltd | 16.7M | $67.6M | 3.7% | 0.9% | 0.0% |
| 8 | TWO SIGMA INVESTMENTS, LP | 15.4M | $62.1M | 0.0% | 0.8% | -40.5% |
| 9 | MACKENZIE FINANCIAL CORP | 14.6M | $59.1M | 0.1% | 0.7% | +88.2% |
| 10 | DIMENSIONAL FUND ADVISORS LP | 11.4M | $46.1M | 0.0% | 0.6% | -4.1% |
| 11 | FMR LLC | 10.4M | $42.0M | 0.0% | 0.5% | +94757.7% |
| 12 | SEI INVESTMENTS CO | 9.2M | $37.2M | 0.0% | 0.5% | +754.4% |
| 13 | Itau Unibanco Holding S.A. | 8.5M | $34.3M | 0.7% | 0.4% | +37.1% |
| 14 | AMERICAN CENTURY COMPANIES INC | 7.2M | $29.2M | 0.0% | 0.4% | +8.9% |
| 15 | CAUSEWAY CAPITAL MANAGEMENT LLC | 7.2M | $29.2M | 0.3% | 0.4% | +5.7% |
| 16 | Engineers Gate Manager LP | 7.0M | $28.3M | 0.4% | 0.4% | +124.7% |
| 17 | RENAISSANCE TECHNOLOGIES LLC | 6.9M | $27.9M | 0.0% | 0.4% | -36.9% |
| 18 | MILLENNIUM MANAGEMENT LLC | 6.8M | $27.5M | 0.0% | 0.3% | +145.9% |
| 19 | MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | 5.4M | $21.7M | 0.0% | 0.3% | +2.7% |
| 20 | Russell Investments Group, Ltd. | 5.2M | $21.6M | 0.0% | 0.3% | +94.6% |
| 21 | GOLDMAN SACHS GROUP INC | 4.3M | $17.5M | 0.0% | 0.2% | -60.5% |
| 22 | Assenagon Asset Management S.A.NEW | 4.0M | $16.3M | 0.0% | 0.2% | new |
| 23 | MORGAN STANLEY | 3.8M | $15.2M | 0.0% | 0.2% | -49.9% |
| 24 | STATE STREET CORP | 3.6M | $14.7M | 0.0% | 0.2% | -1.4% |
| 25 | D. E. Shaw & Co., Inc. | 3.3M | $13.4M | 0.0% | 0.2% | -62.1% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.