UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 20-F x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Fiscal Year Ended December 31, 2019 OR ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 OR ¨ SHELL COMPANY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission file number 1-14878 GERDAU S.A. (Exact name of Registrant as specified in its charter) N/A (Trans ...

Gerdau S.A. (NYSE:GGB) Q3 2019 Earnings Conference Call October 30, 2019 1:00 PM ET Company Participants Gustavo Werneck - Director, President & Chief Executive Officer Harley Scardoelli - Executive Vice President & Chief Financial Officer Conference Call Participants Leonardo Correa - BTG Pactual Daniel Sasson - Itaú BBA Timna Tanners - Bank of America Merrill Lynch Carlos De Alba - Morgan Stanley Thiago Lofiego - Bradesco BBI. Caio Ribeiro - Crédit Suisse Marcio Farid - JPMorgan Operator Good afternoon, a ...

EARNINGS RELEASE 3rd QUARTER OF 2019 Gustavo Werneck President & Chief Executive Officer Harley Scardoelli Chief Financial Officer | --- | --- | --- | |-----------------------------------------------------------------------------------------------|----------------------------------------|--------------------------------------------------------------------------------| | | | | | | | | | Highlights | | | | 3 r d q u a r t e r o f 2 0 1 9 | | | | Free Cash Flow: R$ 1.9 billion Second best quarter in historical ...

Gerdau S.A. (NYSE:GGB) Q2 2019 Results Conference Call August 7, 2019 1:00 PM ET Company Participants Gustavo Werneck - Director, President and CEO Harley Scardoelli - Vice President and CFO Conference Call Participants Daniel Sasson - Itaú BBA Gustavo Allevato - Santander Bank Thiago Ojea - Goldman Sachs Thiago Lofiego - Bredesco BBI Caio Ribeiro - Crédit Suisse Humberto Meireles - Goldman Sachs Carlos De Alba - Morgan Stanley Timna Tanners - Bank of America Merrill Lynch Petr Grishchenko - Barclays Jon Br ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 20-F o REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Fiscal Year Ended December 31, 2018 OR o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 OR o SHELL COMPANY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commissi ...