GGBNYSESteel Works, Blast Furnaces & Rolling & Finishing MillsFiscal year ends December 31
GERDAU S.A.
Financials through fiscal 2025, year ended Dec 31, 2025Last filing: 20-F on Mar 13, 2026
$5.13+0.11 (+2.19%)
Close on Oct 19, 2026
Ownership
Institutional holdings as of Jun 30, 2026, from 13F filings
Held by institutions
50.9%
366M of 718M shares
Institutional holders
212
47 new, 27 sold out
Net institutional buying
59M
In Q2 2026
Insider trades, 12 months
1 buys · 27 sales
Net sold $5.36M
Shares held by institutions
Holders of more than 5%
Latest Schedule 13D (active) or 13G (passive) filed by each holder
| Holder | Shares | % of class | Filing | As of |
|---|---|---|---|---|
| Abigail P. Johnson | 134,894,385 | 10.30% | 13G (passive) amendment | May 30, 2025 |
Top institutional holders
13F holdings as of Jun 30, 2026
| Holder | Shares | % of GGB | Value | Change | % of portfolio |
|---|---|---|---|---|---|
| Acadian Asset Management LLC | 48,672,737 | 6.78% | $196.60K | +35,631,834 | 0.23% |
| Capital World Investors | 26,902,473 | 3.75% | $108.69M | −627,833 | 0.01% |
| UBS Asset Management Americas Inc | 25,745,217 | 3.59% | $104.01M | +23,936,662 | 0.02% |
| Contrarian Capital Management, L.L.C. | 19,069,112 | 2.66% | $77.04M | – | 25.17% |
| BlackRock, Inc. | 18,225,403 | 2.54% | $73.63M | +7,372,520 | 0.00% |
| Donald Smith & Co., Inc. | 17,490,810 | 2.44% | $70.66M | −6,649,773 | 1.25% |
| Aquamarine Financial (Cayman) Ltd | 16,726,171 | 2.33% | $67.57M | – | 3.73% |
| Two Sigma Investments, LP | 15,383,237 | 2.14% | $62.15M | −10,456,483 | 0.04% |
| Mackenzie Financial Corp | 14,638,321 | 2.04% | $59.14M | +6,860,744 | 0.06% |
| Dimensional Fund Advisors LP | 11,394,004 | 1.59% | $46.07M | −481,627 | 0.01% |
| FMR LLC | 10,392,607 | 1.45% | $41.99M | +10,381,651 | 0.00% |
| Sei Investments Co | 9,218,764 | 1.28% | $37.24M | +8,139,847 | 0.03% |
| Itau Unibanco Holding S.A. | 8,511,525 | 1.19% | $34.31M | +2,302,893 | 0.65% |
| Assenagon Asset Management S.A. | 8,064,980 | 1.12% | $32.58M | New | 0.02% |
| American Century Companies Inc | 7,238,674 | 1.01% | $29.24M | +588,898 | 0.01% |
| Causeway Capital Management LLC | 7,229,538 | 1.01% | $29.21M | +388,383 | 0.32% |
| Engineers Gate Manager LP | 7,010,275 | 0.98% | $28.32M | +3,890,093 | 0.37% |
| Renaissance Technologies LLC | 6,902,124 | 0.96% | $27.88M | −4,034,400 | 0.04% |
| Millennium Management LLC | 6,817,870 | 0.95% | $27.54M | +4,045,793 | 0.01% |
| Massachusetts Financial Services Co /Ma/ | 5,353,619 | 0.75% | $21.69M | +140,334 | 0.01% |
Institutional buying and selling by quarter
Positions opened, added to, reduced and closed by 13F filers
| Quarter | Holders | Shares held | % of shares | New / added | Reduced / closed | Shares bought | Shares sold |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 212 | 366M | 50.9% | 47 / 73 | 52 / 27 | 135M | 75M |
| Q1 2026 | 194 | 306M | 42.7% | 34 / 74 | 48 / 21 | 144M | 153M |
| Q4 2025 | 182 | 317M | 44.1% | 29 / 63 | 61 / 20 | 45M | 54M |
| Q3 2025 | 176 | 328M | 45.7% | 29 / 73 | 46 / 19 | 69M | 46M |
| Q2 2025 | 166 | 305M | 42.5% | 22 / 63 | 48 / 35 | 53M | 58M |
| Q1 2025 | 182 | 310M | 43.2% | 27 / 44 | 66 / 32 | 42M | 57M |
| Q4 2024 | 187 | 325M | 45.3% | 34 / 55 | 66 / 30 | 80M | 74M |
| Q3 2024 | 187 | 319M | 44.5% | 28 / 66 | 56 / 26 | 45M | 46M |
| Q2 2024 | 186 | 326M | 45.5% | 31 / 115 | 39 / 23 | 85M | 30M |
| Q1 2024 | 180 | 272M | 37.9% | 19 / 52 | 68 / 29 | 34M | 40M |
| Q4 2023 | 190 | 278M | 38.7% | 25 / 60 | 73 / 19 | 35M | 33M |
| Q3 2023 | 187 | 276M | 38.5% | 23 / 46 | 78 / 38 | 46M | 45M |
Top mutual fund and ETF holders
Latest monthly portfolio reports (Form N-PORT)
| Fund | Shares | % of GGB | Value | % of fund | As of |
|---|---|---|---|---|---|
| New Perspective Fund | 20,168,239 | 2.81% | $81.48M | 0.05% | Jun 30, 2026 |
| iShares Latin America 40 ETF | 7,555,437 | 1.05% | $30.52M | 0.82% | Jun 30, 2026 |
| Avantis Emerging Markets Equity ETF | 6,354,209 | 0.89% | $28.59M | 0.11% | May 31, 2026 |
| Vanguard Selected Value Fund | 5,329,400 | 0.74% | $26.43M | 0.38% | Jul 31, 2026 |
| Strategic Advisers Fidelity Emerging Markets Fund | 4,137,600 | 0.58% | $18.62M | 0.04% | May 31, 2026 |
| Fidelity Series Emerging Markets Fund | 3,327,100 | 0.46% | $16.50M | 0.21% | Jul 31, 2026 |
| MFS International New Discovery Fund | 3,310,501 | 0.46% | $13.37M | 0.18% | Jun 30, 2026 |
| State Street(R) SPDR(R) Portfolio Emerging Markets ETF | 3,067,474 | 0.43% | $12.39M | 0.07% | Jun 30, 2026 |
| Dimensional Emerging Markets Value Fund | 2,784,116 | 0.39% | $13.81M | 0.10% | Jul 31, 2026 |
| Emerging Markets Core Equity 2 Portfolio | 2,486,838 | 0.35% | $12.33M | 0.03% | Jul 31, 2026 |
| Strategic Advisers Emerging Markets Fund | 1,990,229 | 0.28% | $8.96M | 0.05% | May 31, 2026 |
| Causeway Emerging Markets Fund | 1,906,780 | 0.27% | $7.70M | 0.18% | Jun 30, 2026 |
| MFS Active International ETF | 1,893,720 | 0.26% | $8.52M | 0.78% | May 31, 2026 |
| Vanguard Ftse All-World Ex-US Index Fund | 1,291,284 | 0.18% | $6.40M | 0.01% | Jul 31, 2026 |
| VanEck Steel ETF | 799,999 | 0.11% | $3.23M | 1.90% | Jun 30, 2026 |
Officers, directors and major owners
People who filed Forms 3, 4 or 5 in the last two years
| Name | Role | Shares owned | % of shares | Latest filing |
|---|---|---|---|---|
| Franca Gustavo Silva de | Officer | 37,511 | 0.01% | Aug 27, 2026 |
| Cunha Gustavo Werneck Da | CEO and Board Member | 165,224 | 0.02% | Jun 15, 2026 |
| Cesar Obino da Rosa Peres | Officer | 8 | 0.00% | May 22, 2026 |
| Souza Flavia Dias da Silva de | Officer | 15,832 | 0.00% | Mar 20, 2026 |
| Wendel Gomes da Silva | Officer | 125,549 | 0.02% | Mar 18, 2026 |
| Claudio Johannpeter | – | 702,952,898 | 97.93% | Sep 25, 2026 |
| Rafael Gamboa Lopes | – | 83,399 | 0.01% | Sep 21, 2026 |
| Marcos Eduardo Faraco Wahrhaftig | – | 0 | – | Aug 27, 2026 |
| Marcos Zilles Mattiello | – | 0 | – | Aug 14, 2026 |
| Andre Bier Gerdau Johannpeter | – | 703,201,277 | 97.97% | Aug 12, 2026 |
| Rafael Dorneles Japur | – | 86,967 | 0.01% | Aug 10, 2026 |
| Mauricio Metz | – | 22,536 | 0.00% | Jun 3, 2026 |
| Chia Yuan Wang | – | 882 | 0.00% | Jun 3, 2026 |
| Clemir Uhlein | – | 0 | – | Apr 30, 2026 |
| Guilherme Chagas Gerdau Johannpeter | – | 702,952,615 | 97.93% | Mar 25, 2026 |
| Rodrigo Belloc Soares | – | 12,541 | 0.00% | Mar 19, 2026 |
| Claudia Sender Ramirez | – | 21,108 | 0.00% | Mar 18, 2026 |
| Leandro Miana Telles | – | 18,160 | 0.00% | Mar 18, 2026 |
| Alberto Fernandes | – | 5,234 | 0.00% | Mar 18, 2026 |
Insider trades
Common stock transactions reported on Form 4, newest first
| Insider | Date | Transaction | Shares | Price | Value | Shares after |
|---|---|---|---|---|---|---|
| Claudio Johannpeter – | Sep 23, 2026 | Sale | −85,607 | $4.94 | $422.90K | 0 |
| Rafael Gamboa Lopes – | Sep 17, 2026 | Sale | −51,800 | $5.09 | $263.66K | 83,399 |
| Andre Bier Gerdau Johannpeter – | Aug 10, 2026 | Sale | −99,200 | $4.94 | $490.05K | 247,380 |
| Rafael Dorneles Japur – | Aug 6, 2026 | Sale | −10,000 | $5.10 | $51.00K | 86,967 |
| Cunha Gustavo Werneck Da CEO and Board Member | Jun 12, 2026 | Buy | +165,224 | $4.73 | $781.51K | 165,224 |
| Marcos Zilles Mattiello – | Jun 8, 2026 | Sale | −10,387.11 | $5.11 | $53.08K | 0 |
| Mauricio Metz – | Jun 2, 2026 | Sale | −7,000 | $4.85 | $33.95K | 22,536 |
| Chia Yuan Wang – | Jun 2, 2026 | Sale | −30,935 | $4.49 | $138.90K | 0 |
| Mauricio Metz – | May 26, 2026 | Sale | −5,000 | $4.70 | $23.50K | 29,536 |
| Rafael Dorneles Japur – | May 22, 2026 | Sale | −5,000 | $4.75 | $23.75K | 96,967 |
| Cesar Obino da Rosa Peres Officer | May 19, 2026 | Sale | −8,000 | $4.60 | $36.80K | 8 |
| Mauricio Metz – | May 13, 2026 | Sale | −5,000 | $4.85 | $24.25K | 34,536 |
| Cunha Gustavo Werneck Da CEO and Board Member | May 8, 2026 | Award | +432,774 | – | – | 432,854 |
| Cunha Gustavo Werneck Da CEO and Board Member | May 8, 2026 | Sale | −432,854 | $4.87 | $2.11M | 0 |
| Mauricio Metz – | May 5, 2026 | Sale | −2,000 | $4.69 | $9.38K | 39,536 |
| Chia Yuan Wang – | May 5, 2026 | Sale | −40,000 | $4.75 | $190.00K | 32,195 |
| Chia Yuan Wang – | Apr 30, 2026 | Sale | −20,000 | $4.54 | $90.80K | 72,195 |
| Cunha Gustavo Werneck Da CEO and Board Member | Apr 28, 2026 | Sale | −88,000 | $4.50 | $396.00K | 80 |
| Mauricio Metz – | Apr 28, 2026 | Sale | −1,000 | $4.53 | $4.53K | 41,536 |
| Clemir Uhlein – | Apr 28, 2026 | Sale | −38,276 | $4.51 | $172.62K | 0 |
| Chia Yuan Wang – | Apr 28, 2026 | Sale | −76,700 | $4.49 | $344.38K | 92,195 |
| Mauricio Metz – | Apr 10, 2026 | Sale | −1,000 | $4.24 | $4.24K | 42,536 |
| Chia Yuan Wang – | Apr 10, 2026 | Sale | −25,000 | $4.21 | $105.25K | 168,895 |
| Marcos Eduardo Faraco Wahrhaftig – | Apr 9, 2026 | Sale | −12,419 | $4.06 | $50.42K | 0 |
| Cunha Gustavo Werneck Da CEO and Board Member | Apr 9, 2026 | Sale | −50,000 | $4.16 | $208.00K | 88,080 |
| Chia Yuan Wang – | Apr 8, 2026 | Sale | −34,000 | $4.00 | $136.00K | 193,895 |
| Cunha Gustavo Werneck Da CEO and Board Member | Apr 8, 2026 | Sale | −50,000 | $4.01 | $200.50K | 138,080 |
| Guilherme Chagas Gerdau Johannpeter – | Mar 20, 2026 | Sale | −85,607 | $3.29 | $281.65K | 0 |
| Guilherme Chagas Gerdau Johannpeter – | Mar 20, 2026 | Sale | −85,607 | $3.29 | $281.65K | 0 |
Awards, option exercises, tax withholding and gifts are shown alongside open-market buys and sales. Each name links to the filing on SEC EDGAR.