GERDAU SA GGB
SPON ADR REP PFD · ADR · CUSIP 373737105 · ISIN US3737371050
- SectorMaterials
- IndustrySteel Works, Blast Furnaces & Rolling & Finishing Mills
- HeadquartersPorto Alegre, Brazil
- Founded1901
- Websitegerdau.com.br
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($26.4m this quarter). Holder counts are more reliable. Implied quarter-end price ≈ $4.05. Options: 5 managers hold calls ($1.6m notional), 3 hold puts ($205.2k).
Trends to Q2 2026
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 192 |
| Q4 2022 | 225 |
| Q1 2023 | 222 |
| Q2 2023 | 203 |
| Q3 2023 | 189 |
| Q4 2023 | 191 |
| Q1 2024 | 181 |
| Q2 2024 | 188 |
| Q3 2024 | 189 |
| Q4 2024 | 189 |
| Q1 2025 | 184 |
| Q2 2025 | 169 |
| Q3 2025 | 177 |
| Q4 2025 | 182 |
| Q1 2026 | 195 |
| Q2 2026 | 214 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q3 2024 | 92 | 81 |
| Q4 2024 | 79 | 96 |
| Q1 2025 | 69 | 98 |
| Q2 2025 | 85 | 83 |
| Q3 2025 | 98 | 66 |
| Q4 2025 | 85 | 80 |
| Q1 2026 | 107 | 69 |
| Q2 2026 | 118 | 79 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2025 | $371.9k | $104.9k | 0.28 |
| Q4 2025 | $112.2k | $145.4k | 1.30 |
| Q1 2026 | $436.4k | $185.2k | 0.42 |
| Q2 2026 | $1.6m | $205.2k | 0.13 |
Biggest buyers
| ACADIAN ASSET MANAGEMENT LLC | Added | +35.6m |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | Added | +23.9m |
| FMR LLC | Added | +10.4m |
| SEI INVESTMENTS CO | Added | +8.1m |
| Assenagon Asset Management S.A. | New | +8.1m |
| BlackRock, Inc. | Added | +7.4m |
| MACKENZIE FINANCIAL CORP | Added | +6.9m |
| MILLENNIUM MANAGEMENT LLC | Added | +4.0m |
| Engineers Gate Manager LP | Added | +3.9m |
| Russell Investments Group, Ltd. | Added | +2.5m |
Biggest sellers
| BANK OF AMERICA CORP /DE/ | Reduced | -13.0m |
| TWO SIGMA INVESTMENTS, LP | Reduced | -10.5m |
| JANE STREET GROUP, LLC | Reduced | -7.9m |
| GOLDMAN SACHS GROUP INC | Reduced | -6.7m |
| DONALD SMITH & CO., INC. | Reduced | -6.6m |
| D. E. Shaw & Co., Inc. | Reduced | -5.4m |
| SPX Gestao de Recursos Ltda | Sold out | -4.3m |
| RENAISSANCE TECHNOLOGIES LLC | Reduced | -4.0m |
| MORGAN STANLEY | Reduced | -3.7m |
| Qube Research & Technologies Ltd | Reduced | -2.8m |
Biggest calls
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $936.1k231.7k shares |
| GROUP ONE TRADING LLC | Added | $371.3k91.9k shares |
| SIMPLEX TRADING, LLC | Added | $155.9k38.6k shares |
| JANE STREET GROUP, LLC | Reduced | $78.8k19.5k shares |
| CITADEL ADVISORS LLC | New | $75.5k18.7k shares |
Biggest puts
| CITADEL ADVISORS LLC | Reduced | $203.2k50.3k shares |
| GROUP ONE TRADING LLC | Unchanged | $1.2k300 shares |
| SIMPLEX TRADING, LLC | New | $808200 shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
No one currently above 5% in the filings since 19 Dec 2024.
Fell to 5% or below in the last year: FMR LLC (0.2%, 2026-03-06)
Insider purchases and sales since 1 Apr 2026
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q4 2024 | 0 | — | 0 | — | — |
| Q1 2025 | 0 | — | 0 | — | — |
| Q2 2025 | 0 | — | 0 | — | — |
| Q3 2025 | 0 | — | 0 | — | — |
| Q4 2025 | 0 | — | 0 | — | — |
| Q1 2026 | 0 | — | 0 | — | — |
| Q2 2026 | 1 | $781.5k | 2 | $2.9m | — |
| Q3 2026 | 0 | — | 0 | — | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2026-09-23 | Johannpeter Claudio Vice-Chairman of Board · Preferred shares | Sold | $422.9k85.6k shares |
| 2026-09-17 | Lopes Rafael Gamboa Executive Vice President · Preferred shares | Sold | $263.7k51.8k shares |
| 2026-08-10 | Johannpeter Andre Bier Gerdau Chairman of Board of Directors · Preferred shares | Sold | $490.0k99.2k shares |
| 2026-08-06 | Japur Rafael Dorneles VP, CFO and IR Officer · Preferred shares | Sold | $51.0k10.0k shares |
| 2026-06-12 | Da Cunha Gustavo Werneck CEO and Board Member · Preferred shares | Bought | $781.5k165.2k shares |
| 2026-06-08 | Mattiello Marcos Zilles Senior Management · Preferred shares | Sold | $53.1k10.4k shares |
| 2026-06-02 | Wang Chia Yuan Senior Management · Preferred shares | Sold | $138.9k30.9k shares |
| 2026-06-02 | Metz Mauricio Executive Vice President · Preferred shares | Sold | $34.0k7.0k shares |
| 2026-05-26 | Metz Mauricio Executive Vice President · Preferred shares | Sold | $23.5k5.0k shares |
| 2026-05-22 | Japur Rafael Dorneles VP, CFO and IR Officer · Preferred shares | Sold | $23.8k5.0k shares |
| 2026-05-19 | Peres Cesar Obino da Rosa Officer · Preferred shares | Sold | $36.8k8.0k shares |
| 2026-05-13 | Metz Mauricio Executive Vice President · Preferred shares | Sold | $24.2k5.0k shares |
| 2026-05-08 | Da Cunha Gustavo Werneck CEO and Board Member · Preferred shares | Sold | $2.1m432.9k shares |
| 2026-05-05 | Wang Chia Yuan Senior management · Preferred shares | Sold | $190.0k40.0k shares |
| 2026-05-05 | Metz Mauricio Executive Vice President · Preferred shares | Sold | $9.4k2.0k shares |
| 2026-04-30 | Wang Chia Yuan Senior management · Preferred shares | Sold | $90.8k20.0k shares |
| 2026-04-28 | Da Cunha Gustavo Werneck CEO and Board Member · Preferred shares | Sold | $396.0k88.0k shares |
| 2026-04-28 | Wang Chia Yuan Senior Management · Preferred shares | Sold | $344.4k76.7k shares |
| 2026-04-28 | Uhlein Clemir Senior Management · Preferred shares | Sold | $172.6k38.3k shares |
| 2026-04-28 | Metz Mauricio Executive Vice President · Preferred shares | Sold | $4.5k1.0k shares |
| 2026-04-10 | Wang Chia Yuan Senior Management · Preferred shares | Sold | $105.2k25.0k shares |
| 2026-04-10 | Metz Mauricio Executive Vice President · Preferred shares | Sold | $4.2k1.0k shares |
| 2026-04-09 | Da Cunha Gustavo Werneck CEO and Board Member · Preferred shares | Sold | $208.0k50.0k shares |
| 2026-04-09 | Wahrhaftig Marcos Eduardo Faraco Executive Vice President · Preferred shares | Sold | $50.4k12.4k shares |
| 2026-04-08 | Da Cunha Gustavo Werneck CEO and Board Member · Preferred shares | Sold | $200.5k50.0k shares |
| 2026-04-08 | Wang Chia Yuan Senior management · Preferred shares | Sold | $136.0k34.0k shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q2 2026
| Manager | Shares | Change |
|---|---|---|
| ACADIAN ASSET MANAGEMENT LLC 0.23% of their portfolio | 48.7m $196.6m | Added +35.6m |
| Capital World Investors 0.01% of their portfolio | 26.9m $108.7m | Reduced -627.8k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.02% of their portfolio | 25.7m $104.0m | Added +23.9m |
| CONTRARIAN CAPITAL MANAGEMENT, L.L.C. 25.17% of their portfolio | 19.1m $77.0m | Unchanged |
| BlackRock, Inc. 0.00% of their portfolio | 18.2m $73.6m | Added +7.4m |
| DONALD SMITH & CO., INC. 1.25% of their portfolio | 17.5m $70.7m | Reduced -6.6m |
| Aquamarine Financial (Cayman) Ltd 3.73% of their portfolio | 16.7m $67.6m | Unchanged |
| TWO SIGMA INVESTMENTS, LP 0.05% of their portfolio | 15.4m $62.1m | Reduced -10.5m |
| MACKENZIE FINANCIAL CORP 0.06% of their portfolio | 14.6m $59.1m | Added +6.9m |
| DIMENSIONAL FUND ADVISORS LP 0.01% of their portfolio | 11.4m $46.1m | Reduced -481.6k |
| FMR LLC 0.00% of their portfolio | 10.4m $42.0m | Added +10.4m |
| SEI INVESTMENTS CO 0.03% of their portfolio | 9.2m $37.2m | Added +8.1m |
| Itau Unibanco Holding S.A. 0.68% of their portfolio | 8.5m $34.3m | Added +2.3m |
| Assenagon Asset Management S.A. 0.02% of their portfolio | 8.1m $32.6m | New |
| AMERICAN CENTURY COMPANIES INC 0.01% of their portfolio | 7.2m $29.2m | Added +588.9k |
| CAUSEWAY CAPITAL MANAGEMENT LLC 0.32% of their portfolio | 7.2m $29.2m | Added +388.4k |
| Engineers Gate Manager LP 0.37% of their portfolio | 7.0m $28.3m | Added +3.9m |
| RENAISSANCE TECHNOLOGIES LLC 0.04% of their portfolio | 6.9m $27.9m | Reduced -4.0m |
| MILLENNIUM MANAGEMENT LLC 0.02% of their portfolio | 6.8m $27.5m | Added +4.0m |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ 0.01% of their portfolio | 5.4m $21.7m | Added +140.3k |
| Russell Investments Group, Ltd. 0.02% of their portfolio | 5.2m $21.6m | Added +2.5m |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 4.3m $17.5m | Reduced -6.7m |
| MORGAN STANLEY 0.00% of their portfolio | 3.8m $15.2m | Reduced -3.7m |
| STATE STREET CORP 0.00% of their portfolio | 3.6m $14.7m | Reduced -52.8k |
| D. E. Shaw & Co., Inc. 0.01% of their portfolio | 3.3m $13.4m | Reduced -5.4m |
| CITIGROUP INC 0.01% of their portfolio | 2.9m $11.7m | Added +2.0m |
| FIL Ltd 0.01% of their portfolio | 2.7m $11.1m | Added +57.7k |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. 0.01% of their portfolio | 2.6m $10.5m | Added +517.9k |
| NEW YORK STATE COMMON RETIREMENT FUND 0.01% of their portfolio | 2.3m $9.2m | Added +1.2m |
| DYNAMO INTERNACIONAL GESTAO DE RECURSOS LTDA. 3.61% of their portfolio | 2.1m $8.5m | New |
| BW Gestao de Investimentos Ltda. 0.18% of their portfolio | 1.8m $7.4m | New |
| Man Group plc 0.01% of their portfolio | 1.8m $7.3m | Added +298.4k |
| SCHRODER INVESTMENT MANAGEMENT GROUP 0.01% of their portfolio | 1.7m $7.1m | Added +1.7m |
| VANGUARD CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 1.6m $6.5m | Reduced -422.8k |
| MARSHALL WACE, LLP 0.01% of their portfolio | 1.6m $6.4m | Added +993.1k |
| Connor, Clark & Lunn Investment Management Ltd. 0.01% of their portfolio | 1.6m $6.3m | Added +1.5m |
| Amundi 0.00% of their portfolio | 1.5m $6.1m | Added +84.9k |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.00% of their portfolio | 1.5m $6.0m | New |
| Kapitalo Investimentos Ltda 0.44% of their portfolio | 1.4m $5.7m | Reduced -1.3m |
| Grantham, Mayo, Van Otterloo & Co. LLC 0.01% of their portfolio | 1.4m $5.6m | Reduced -195.7k |
| Qube Research & Technologies Ltd 0.01% of their portfolio | 1.3m $5.3m | Reduced -2.8m |
| UBS Group AG 0.00% of their portfolio | 1.1m $4.5m | Reduced -1.1m |
| CAPITAL INTERNATIONAL SARL 0.06% of their portfolio | 1.0m $4.2m | Added +84.0k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 995.7k $4.0m | Reduced -17.9k |
| HSBC HOLDINGS PLC 0.00% of their portfolio | 972.9k $3.9m | Added +115.5k |
| Point72 Asset Management, L.P. 0.01% of their portfolio | 897.6k $3.6m | Added +17.2k |
| BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio | 857.0k $3.5m | Added +675.7k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 830.4k $3.4m | Added +586.8k |
| Creative Planning 0.00% of their portfolio | 809.5k $3.3m | Added +203.6k |
| Banque Cantonale Vaudoise 0.12% of their portfolio | 800.0k $3.2m | Unchanged |
| VAN ECK ASSOCIATES CORP 0.00% of their portfolio | 800.0k $3.2m | Added +99.4k |
| BTG Pactual Asset Management US LLC 0.24% of their portfolio | 785.7k $3.2m | Added +19.8k |
| AQR CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 758.1k $3.1m | Reduced -342.4k |
| Legal & General Group Plc 0.00% of their portfolio | 715.0k $2.9m | Reduced -125.6k |
| Employees Retirement System of Texas 0.02% of their portfolio | 623.7k $2.5m | New |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. 0.00% of their portfolio | 567.6k $2.3m | New |
| Navi International - Administradora e Gestora de Recursos Financeiros Ltda. 1.57% of their portfolio | 550.0k $2.2m | Unchanged |
| CITADEL ADVISORS LLC 0.00% of their portfolio | 539.6k $2.2m | Added +440.0k |
| CAPITAL INTERNATIONAL LTD /CA/ 0.07% of their portfolio | 527.9k $2.1m | Unchanged |
| B. Metzler seel. Sohn & Co. AG 0.02% of their portfolio | 522.1k $2.1m | New |
| GSA CAPITAL PARTNERS LLP 0.13% of their portfolio | 509.9k $2.1m | Added +128.8k |
| PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO 0.01% of their portfolio | 498.3k $2.0m | New |
| HRT FINANCIAL LP 0.00% of their portfolio | 464.5k $1.9m | Added +96.8k |
| GUGGENHEIM CAPITAL LLC 0.01% of their portfolio | 457.5k $1.8m | Added +20.4k |
| NEUBERGER BERMAN GROUP LLC 0.00% of their portfolio | 395.7k $1.6m | Added +154.5k |
| Invesco Ltd. 0.00% of their portfolio | 370.6k $1.5m | Reduced -134.7k |
| VANGUARD FIDUCIARY TRUST CO 0.00% of their portfolio | 366.0k $1.5m | Unchanged |
| Schonfeld Strategic Advisors LLC 0.01% of their portfolio | 323.2k $1.3m | Added +142.8k |
| DIVERSIFIED TRUST CO 0.02% of their portfolio | 289.3k $1.2m | Added +184.1k |
| COMMONWEALTH EQUITY SERVICES, LLC 0.00% of their portfolio | 275.5k $1.1m | Reduced -8.3k |
| Integrated Wealth Concepts LLC 0.01% of their portfolio | 272.1k $1.1m | Added +151.4k |
| Bridgewater Associates, LP 0.00% of their portfolio | 271.7k $1.1m | Added +223.5k |
| Quantbot Technologies LP 0.04% of their portfolio | 258.4k $1.0m | Reduced -208.4k |
| Fisher Asset Management, LLC 0.00% of their portfolio | 254.4k $1.0m | Reduced -71.7k |
| Capital International, Inc./CA/ 0.01% of their portfolio | 210.6k $851.0k | Unchanged |
| Robeco Institutional Asset Management B.V. 0.00% of their portfolio | 205.1k $828.8k | Added +69.8k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 183.9k $742.9k | Reduced -13.0m |
| STRS OHIO 0.00% of their portfolio | 181.4k $732.8k | Reduced -10.4k |
| Tidal Investments LLC 0.00% of their portfolio | 176.9k $714.6k | Added +3.3k |
| Squarepoint Ops LLC 0.00% of their portfolio | 157.5k $636.3k | Reduced -159.8k |
| Vident Advisory, LLC 0.00% of their portfolio | 157.4k $635.8k | Reduced -1.1k |
| Optiver Holding B.V. 0.01% of their portfolio | 156.0k $630.1k | Reduced -1.0m |
| Nykredit A/S 0.00% of their portfolio | 150.9k $609.6k | First filing |
| Daiwa Securities Group Inc. 0.00% of their portfolio | 150.5k $608.2k | Added +12.0k |
| HIMENSION CAPITAL (SINGAPORE) PTE. LTD. 0.03% of their portfolio | 128.6k $519.5k | New |
| LARCH CAPITAL PARTNERS LLC 0.07% of their portfolio | 125.1k $505.5k | Reduced -9.0k |
| Centiva Capital, LP 0.02% of their portfolio | 124.5k $503.1k | Reduced -90.7k |
| CAPITAL GROUP INVESTMENT MANAGEMENT PTE. LTD. 0.07% of their portfolio | 117.3k $474.0k | Unchanged |
| Ethic Inc. 0.01% of their portfolio | 116.6k $471.0k | Reduced -122.3k |
| Aquatic Capital Management LLC 0.01% of their portfolio | 104.4k $421.7k | Reduced -1.3m |
| TRUIST FINANCIAL CORP 0.00% of their portfolio | 103.9k $419.9k | Added +500 |
| State of Wyoming 0.04% of their portfolio | 92.8k $374.8k | Added +59.8k |
| Cambridge Investment Research Advisors, Inc. 0.00% of their portfolio | 91.6k $370.0k | Added +45.8k |
| Mitsubishi UFJ Trust & Banking Corp 0.00% of their portfolio | 90.0k $363.6k | Added +61.0k |
| Stratos Wealth Partners, LTD. 0.00% of their portfolio | 88.2k $356.3k | Unchanged |
| VPR Management LLC 0.14% of their portfolio | 86.2k $348.4k | Unchanged |
| Sequoia Financial Advisors, LLC 0.00% of their portfolio | 82.9k $334.8k | Added +6.4k |
| CenterBook Partners LP 0.02% of their portfolio | 77.5k $313.0k | New |
| US BANCORP \DE\ 0.00% of their portfolio | 73.0k $295.0k | Added +62.7k |
| SG Americas Securities, LLC 0.00% of their portfolio | 72.6k $293.0k | Added +42.3k |