{"entity":{"type":"insider","cik":"0002120774","url":"/insider/0002120774","json_url":"/insider/0002120774.json","name":"Da Cunha Gustavo Werneck","name_source":"as-filed","also_issuer":false,"cross_url":null},"coverage_statement":{"n_transactions":5,"n_filings":4,"first":"2026-04-10","last":"2026-06-15","span_basis":"filed_date"},"name_variants":[{"name":"Da Cunha Gustavo Werneck","source":"filing","n_filings":4,"first_seen":"2026-04-10","last_seen":"2026-06-15"}],"transactions":[{"id":6068110,"accession":"0002120774-26-000004","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0002120774-26-000004","line_url":"/filing/0002120774-26-000004#line-1","is_derivative":false,"issuer_cik":"0001073404","issuer_name":"GERDAU S.A.","issuer_ticker":"GGB","issuer_name_source":null,"issuer_url":"/issuer/0001073404","owner_cik":"0002120774","owner_name":"Da Cunha Gustavo Werneck","owner_url":"/insider/0002120774","role":"Officer (CEO and Board Member)","officer_title":"CEO and Board Member","security_title":"Preferred shares","transaction_code":"P","transaction_label":"Open-market purchase","open_market":true,"acquired_disposed":"A","direction_word":"acquired","shares":165224.0,"shares_display":"165,224","price_per_share":4.73,"price_display":"4.73","price_state":"stated","total_value":781509.52,"total_display":"781,509.52","shares_owned_after":165224.0,"shares_owned_after_display":"165,224","ownership_form":"D","is_10b5_1":null,"transaction_date":"2026-06-12","filed_date":"2026-06-15","scope":"insider"},{"id":6238513,"accession":"0002120774-26-000003","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0002120774-26-000003","line_url":"/filing/0002120774-26-000003#line-2","is_derivative":false,"issuer_cik":"0001073404","issuer_name":"GERDAU S.A.","issuer_ticker":"GGB","issuer_name_source":null,"issuer_url":"/issuer/0001073404","owner_cik":"0002120774","owner_name":"Da Cunha Gustavo Werneck","owner_url":"/insider/0002120774","role":"Officer (CEO and Board Member)","officer_title":"CEO and Board Member","security_title":"Preferred shares","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":432854.0,"shares_display":"432,854","price_per_share":4.87,"price_display":"4.87","price_state":"stated","total_value":2107998.98,"total_display":"2,107,998.98","shares_owned_after":0.0,"shares_owned_after_display":"0","ownership_form":"D","is_10b5_1":null,"transaction_date":"2026-05-08","filed_date":"2026-05-12","scope":"insider"},{"id":5760488,"accession":"0002120774-26-000002","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0002120774-26-000002","line_url":"/filing/0002120774-26-000002#line-1","is_derivative":false,"issuer_cik":"0001073404","issuer_name":"GERDAU S.A.","issuer_ticker":"GGB","issuer_name_source":null,"issuer_url":"/issuer/0001073404","owner_cik":"0002120774","owner_name":"Da Cunha Gustavo Werneck","owner_url":"/insider/0002120774","role":"Officer (CEO and Board Member)","officer_title":"CEO and Board Member","security_title":"Preferred shares","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":88000.0,"shares_display":"88,000","price_per_share":4.5,"price_display":"4.50","price_state":"stated","total_value":396000.0,"total_display":"396,000.00","shares_owned_after":80.0,"shares_owned_after_display":"80","ownership_form":"D","is_10b5_1":null,"transaction_date":"2026-04-28","filed_date":"2026-05-05","scope":"insider"},{"id":5913795,"accession":"0002120774-26-000001","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0002120774-26-000001","line_url":"/filing/0002120774-26-000001#line-2","is_derivative":false,"issuer_cik":"0001073404","issuer_name":"GERDAU S.A.","issuer_ticker":"GGB","issuer_name_source":null,"issuer_url":"/issuer/0001073404","owner_cik":"0002120774","owner_name":"Da Cunha Gustavo Werneck","owner_url":"/insider/0002120774","role":"Officer (CEO and Board Member)","officer_title":"CEO and Board Member","security_title":"Preferred shares","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":50000.0,"shares_display":"50,000","price_per_share":4.16,"price_display":"4.16","price_state":"stated","total_value":208000.0,"total_display":"208,000.00","shares_owned_after":88080.0,"shares_owned_after_display":"88,080","ownership_form":"D","is_10b5_1":null,"transaction_date":"2026-04-09","filed_date":"2026-04-10","scope":"insider"},{"id":5913793,"accession":"0002120774-26-000001","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0002120774-26-000001","line_url":"/filing/0002120774-26-000001#line-1","is_derivative":false,"issuer_cik":"0001073404","issuer_name":"GERDAU S.A.","issuer_ticker":"GGB","issuer_name_source":null,"issuer_url":"/issuer/0001073404","owner_cik":"0002120774","owner_name":"Da Cunha Gustavo Werneck","owner_url":"/insider/0002120774","role":"Officer (CEO and Board Member)","officer_title":"CEO and Board Member","security_title":"Preferred shares","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":50000.0,"shares_display":"50,000","price_per_share":4.01,"price_display":"4.01","price_state":"stated","total_value":200500.0,"total_display":"200,500.00","shares_owned_after":138080.0,"shares_owned_after_display":"138,080","ownership_form":"D","is_10b5_1":null,"transaction_date":"2026-04-08","filed_date":"2026-04-10","scope":"insider"}],"next_cursor":null,"ledger_fault":false,"count":{"value":5,"kind":"exact"},"open_market_only":false,"composition":{"kind":"exact","rows":[{"code":"P","label":"Open-market purchase","n":1,"open_market":true},{"code":"S","label":"Open-market sale","n":4,"open_market":true},{"code":"M","label":"Option exercise","n":0,"open_market":false},{"code":"A","label":"Grant or award","n":0,"open_market":false},{"code":"F","label":"Tax withholding","n":0,"open_market":false},{"code":"D","label":"Disposition to the issuer","n":0,"open_market":false},{"code":"X","label":"In-the-money option exercise","n":0,"open_market":false}],"total":5},"affiliations":[{"type":"issuer","type_label":"ISSUER","cik":"0001073404","name":"GERDAU S.A.","url":"/issuer/0001073404","role":"Officer (CEO and Board Member)","n_filings":4,"first_seen":"2026-04-10","last_seen":"2026-06-15"}],"order_statement":"Newest transaction date first, id breaking the tie.","canonical_url":"https://ebomi.com/insider/0002120774","retrieved_at":"2026-08-22T03:17:17+00:00","coverage":{"filings":1505395,"transactions":4290787,"issuers":28597,"insiders":152303,"first_filed_date":"2003-06-30","last_filed_date":"2026-08-20","last_ingest":"2026-08-21T05:23:33.898496+00:00","counts_are":{"filings":"estimate","transactions":"estimate","issuers":"estimate","insiders":"estimate"},"source":"SEC EDGAR Form 4 filings, parsed by ebomi","fault":false},"license":{"underlying_records":"US SEC filings are public records of the United States government and are not subject to copyright. The transactional facts in them are not ours to license.","this_presentation":"The parsing, normalisation, curation, and presentation are ebomi's own work.","grant":"undecided","grant_note":"The open licence for ebomi's own layer is an open owner decision (SPEC-20260731T1159Z open question 3: CC BY 4.0 or CC0 with a citation request). Until it is taken, no grant is asserted here.","citation_request":"Balogh, A. Insider trading. Scientific Data 10, 237 (2023)","url":"https://ebomi.com/license"},"fair_use":{"policy":"These JSON endpoints are open and unauthenticated. Please read them at a human pace, identify your client in the User-Agent header, and use the published dataset for bulk work rather than crawling page by page.","bulk_alternative":"doi:10.1038/s41597-023-02147-6"}}