Gerdau S.A. (GGB) Ownership
GGB ownership summary
as of October 17, 2026- Institutions
- 33.7% of shares outstanding
- Insiders
- 0.02% of shares outstanding
- Shares outstanding
- 1.24B
- Float
- 1.26B shares available to trade
- Short interest
- 5.06% 40.8M shares short
- Days to cover
- 3.63 short interest up 12.9% vs prior month
- Institutions 33.69%
- Insiders 0.02%
- Other investors 66.29%
GGB top institutional holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | Acadian Asset Management LLC | 2.48% | 48.7M | $244.3M | +35.6M (+273.2%) | June 30, 2026 |
| 2 | Capital World Investors | 1.37% | 26.9M | $135.1M | −627,833 (−2.3%) | June 30, 2026 |
| 3 | UBS Asset Mgmt Americas Inc | 1.31% | 25.7M | $129.2M | +23.9M (+1,323.5%) | June 30, 2026 |
| 4 | Contrarian Capital Management LLC | 0.97% | 19.1M | $95.7M | — | June 30, 2026 |
| 5 | BlackRock Inc | 0.93% | 18.2M | $91.5M | +7.4M (+67.9%) | June 30, 2026 |
| 6 | Donald Smith & Co Inc | 0.89% | 17.5M | $87.8M | −6.6M (−27.5%) | June 30, 2026 |
| 7 | Aquamarine Financial (Cayman) Ltd | 0.85% | 16.7M | $84.0M | — | June 30, 2026 |
| 8 | Two Sigma Investments LLC | 0.78% | 15.4M | $77.2M | −10.5M (−40.5%) | June 30, 2026 |
| 9 | Mackenzie Investments | 0.75% | 14.6M | $73.5M | +6.9M (+88.2%) | June 30, 2026 |
| 10 | Dimensional Fund Advisors, Inc. | 0.58% | 11.4M | $57.2M | −481,627 (−4.1%) | June 30, 2026 |
| 11 | FMR Inc | 0.53% | 10.4M | $52.2M | +10.4M (+94,757.7%) | June 30, 2026 |
| 12 | SEI Investments Co | 0.47% | 9.2M | $46.3M | +8.1M (+754.4%) | June 30, 2026 |
| 13 | Itau Unibanco Holding SA | 0.43% | 8.5M | $42.7M | +2.3M (+37.1%) | June 30, 2026 |
| 14 | Assenagon Asset Management SA | 0.41% | 8.1M | $40.5M | +8.1M (0.0%) | June 30, 2026 |
| 15 | American Century Companies Inc | 0.37% | 7.2M | $36.3M | +588,898 (+8.9%) | June 30, 2026 |
| 16 | Causeway Capital Management LLC | 0.37% | 7.2M | $36.3M | +388,383 (+5.7%) | June 30, 2026 |
| 17 | Engineers Gate Manager LP | 0.36% | 7.0M | $35.2M | +3.9M (+124.7%) | June 30, 2026 |
| 18 | Renaissance Technologies Corp | 0.35% | 6.9M | $34.6M | −4.0M (−36.9%) | June 30, 2026 |
| 19 | Millennium Management LLC | 0.35% | 6.8M | $34.2M | +4.0M (+145.9%) | June 30, 2026 |
| 20 | Massachusetts Financial Services Company | 0.27% | 5.4M | $26.9M | +140,334 (+2.7%) | June 30, 2026 |
Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 13 holders added 111.7M shares and 5 cut 22.3M.
GGB top mutual fund and ETF holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | American Funds New Perspective A | 1.03% | 20.2M | $101.2M | — | June 30, 2026 |
| 2 | iShares Latin America 40 ETF | 0.38% | 7.5M | $37.8M | — | September 30, 2026 |
| 3 | Avantis Emerging Markets Equity ETF | 0.34% | 6.7M | $33.6M | — | September 30, 2026 |
| 4 | Vanguard Selected Value Inv | 0.27% | 5.3M | $26.8M | −1.5M (−22.2%) | June 30, 2026 |
| 5 | Ninety One GSF Emerging Mkts Eq I AccUSD | 0.27% | 5.2M | $26.2M | +347,584 (+7.1%) | August 31, 2026 |
| 6 | Strategic Advisers Fidelity Em Mkts | 0.24% | 4.7M | $23.4M | +297,300 (+6.8%) | August 31, 2026 |
| 7 | Acadian Emerg Mkts Eq II A USD Acc | 0.21% | 4.1M | $20.5M | −101,972 (−2.4%) | August 31, 2026 |
| 8 | Capital Group NewPers LUX Z | 0.20% | 3.9M | $19.7M | −453,302 (−10.3%) | June 30, 2026 |
| 9 | DWS Invest Latin American Eqs FC | 0.18% | 3.6M | $17.9M | −888,394 (−20.0%) | August 31, 2026 |
| 10 | Fidelity Series Emerging Markets | 0.17% | 3.3M | $16.7M | — | August 31, 2026 |
| 11 | Mackenzie GQE Emerging Markets F | 0.17% | 3.3M | $16.4M | +339,257 (+11.6%) | July 31, 2026 |
| 12 | MFS International New Discovery I | 0.16% | 3.2M | $15.9M | −137,652 (−4.2%) | August 31, 2026 |
| 13 | State Street® SPDR® Portfolio EM ETF | 0.15% | 3.0M | $14.9M | — | September 30, 2026 |
| 14 | DFA Emerging Markets Value I | 0.14% | 2.8M | $14.0M | — | August 31, 2026 |
| 15 | Strategic Advisers Emerging Markets | 0.14% | 2.7M | $13.7M | +309,200 (+12.8%) | August 31, 2026 |
| 16 | DFA Emerging Markets Core Equity 2 I | 0.13% | 2.5M | $12.5M | — | August 31, 2026 |
| 17 | Schroder ISF Em Mkts A Dis USD AV | 0.12% | 2.3M | $11.3M | +2.3M (0.0%) | January 31, 2026 |
| 18 | UBS (Lux) ES Enga for Imp(USD) Q Acc | 0.11% | 2.1M | $10.8M | — | June 30, 2026 |
| 19 | MFS Active International ETF | 0.11% | 2.1M | $10.5M | — | September 30, 2026 |
| 20 | Ninety One Emerg Markets Equity I Acc | 0.10% | 2.0M | $9.9M | +105,614 (+5.7%) | August 31, 2026 |
Funds report holdings monthly or quarterly; dates differ by fund.
GGB insider transactions
latest 6| Date | Name | Transaction | Price | Shares | Value |
|---|---|---|---|---|---|
| 2026-04-10 | Chia Yuan Wang | Sell | $4.21 | 25,000 | $105,250 |
| 2026-04-10 | Mauricio Metz | Sell | $4.24 | 1,000 | $4,240 |
| 2026-04-09 | Marcos Eduardo Fara Wahrhaftig | Sell | $4.06 | 12,419 | $50,421 |
| 2026-04-08 | Chia Yuan Wang | Sell | $4.00 | 34,000 | $136,000 |
| 2026-04-08 | Cunha Gustavo Werneck Da | Sell | $4.01 | 50,000 | $200,500 |
| 2026-03-20 | Guilherme Chagas G Johannpeter | Sell | $3.29 | 85,607 | $281,647 |
Reported trades by company officers, directors and other filers (including disclosures by members of Congress where EODHD lists them). "—" where the filing gives no share count.
GGB shares outstanding
Year-end shares outstanding, adjusted for splits.
Who owns GGB
Institutional investors own 33.7% of Gerdau's shares and insiders 0.02%. The largest holder is Acadian Asset Management LLC with 2.48% of the shares (48.7M), as of June 30, 2026. Among the top 20 institutions, 13 added shares and 5 reduced their stake in the latest filings. Short interest is 5.06% of the float, or 3.63 days of average trading volume. The share count rose 10.4% since 2014.
Related: GGB analyst forecast, GGB key metrics, GGB dividend history. See the GGB stock overview for the latest quote and news.
GGB ownership FAQ
Who owns the most Gerdau stock?
The largest shareholders of Gerdau are Acadian Asset Management LLC (2.48%), Capital World Investors (1.37%), UBS Asset Mgmt Americas Inc (1.31%), Contrarian Capital Management LLC (0.97%), BlackRock Inc (0.93%).
What percentage of Gerdau is owned by institutions?
Institutions hold 33.7% of Gerdau's shares outstanding; insiders hold 0.02%.
Which funds own Gerdau?
The largest fund holders of Gerdau are American Funds New Perspective A (1.03%), iShares Latin America 40 ETF (0.38%), Avantis Emerging Markets Equity ETF (0.34%), Vanguard Selected Value Inv (0.27%), Ninety One GSF Emerging Mkts Eq I AccUSD (0.27%).
What is Gerdau's short interest?
40.8M shares of Gerdau were sold short, 5.06% of the float; at the average daily volume it would take 3.63 days to cover.
Are insiders buying or selling Gerdau?
Of the latest 6 reported insider transactions in Gerdau (since March 20, 2026), 0 were purchases and 6 were sales.
How many shares of Gerdau are outstanding?
Gerdau has 1.24B shares outstanding, of which 1.26B are in the public float.