{"entity":{"type":"insider","cik":"0001435661","url":"/insider/0001435661","json_url":"/insider/0001435661.json","name":"LOPATIN GERALD","name_source":"as-filed","also_issuer":false,"cross_url":null},"coverage_statement":{"n_transactions":5,"n_filings":3,"first":"2009-11-19","last":"2010-03-03","span_basis":"filed_date"},"name_variants":[{"name":"LOPATIN GERALD","source":"filing","n_filings":3,"first_seen":"2009-11-19","last_seen":"2010-03-03"}],"transactions":[{"id":7487042,"accession":"0001181431-10-013759","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001181431-10-013759","line_url":"/filing/0001181431-10-013759","is_derivative":false,"issuer_cik":"0000709283","issuer_name":"QUANTUM CORP /DE/","issuer_ticker":"QTM","issuer_name_source":null,"issuer_url":"/issuer/0000709283","owner_cik":"0001435661","owner_name":"LOPATIN GERALD","owner_display_name":"LOPATIN GERALD","owner_url":"/insider/0001435661","role":"Officer (Executive VP, Engineering)","role_mark":"O","role_mark_label":"Officer (Executive VP, Engineering)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Executive VP, Engineering","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":22698.0,"shares_display":"22,698","price_per_share":2.5855194290245835,"price_display":"2.59","price_state":"stated","total_value":58686.12,"total_display":"58,686.12","total_whole":"58,686","shares_owned_after":181003.0,"shares_owned_after_display":"181,003","ownership_form":"D","is_10b5_1":null,"transaction_date":"2010-03-03","filed_date":"2010-03-03","scope":"insider","n_lines":2},{"id":7324024,"accession":"0001181431-10-011973","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001181431-10-011973","line_url":"/filing/0001181431-10-011973","is_derivative":false,"issuer_cik":"0000709283","issuer_name":"QUANTUM CORP /DE/","issuer_ticker":"QTM","issuer_name_source":null,"issuer_url":"/issuer/0000709283","owner_cik":"0001435661","owner_name":"LOPATIN GERALD","owner_display_name":"LOPATIN GERALD","owner_url":"/insider/0001435661","role":"Officer (Executive VP, Engineering)","role_mark":"O","role_mark_label":"Officer (Executive VP, Engineering)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Executive VP, Engineering","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":38334.0,"shares_display":"38,334","price_per_share":2.4808608545938333,"price_display":"2.48","price_state":"stated","total_value":95101.32,"total_display":"95,101.32","total_whole":"95,101","shares_owned_after":212466.0,"shares_owned_after_display":"212,466","ownership_form":"D","is_10b5_1":null,"transaction_date":"2010-02-24","filed_date":"2010-02-25","scope":"insider","n_lines":2},{"id":5595230,"accession":"0001181431-09-052875","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001181431-09-052875","line_url":"/filing/0001181431-09-052875#line-1","is_derivative":false,"issuer_cik":"0000709283","issuer_name":"QUANTUM CORP /DE/","issuer_ticker":"QTM","issuer_name_source":null,"issuer_url":"/issuer/0000709283","owner_cik":"0001435661","owner_name":"LOPATIN GERALD","owner_display_name":"LOPATIN GERALD","owner_url":"/insider/0001435661","role":"Officer (Executive VP, Engineering)","role_mark":"O","role_mark_label":"Officer (Executive VP, Engineering)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Executive VP, Engineering","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":17500.0,"shares_display":"17,500","price_per_share":2.55,"price_display":"2.55","price_state":"stated","total_value":44625.0,"total_display":"44,625.00","total_whole":"44,625","shares_owned_after":247500.0,"shares_owned_after_display":"247,500","ownership_form":"D","is_10b5_1":null,"transaction_date":"2009-11-19","filed_date":"2009-11-19","scope":"insider"}],"collapsed":true,"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":0,"open_market":true},{"code":"S","label":"Open-market sale","n":5,"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":"0000709283","name":"QUANTUM CORP /DE/","url":"/issuer/0000709283","role":"Officer (Executive VP, Engineering)","n_filings":3,"first_seen":"2009-11-19","last_seen":"2010-03-03"}],"order_statement":"Newest transaction date first, id breaking the tie.","canonical_url":"https://ebomi.com/insider/0001435661","retrieved_at":"2026-08-22T14:35:30+00:00","coverage":{"filings":1506293,"transactions":4290787,"issuers":28597,"insiders":152303,"first_filed_date":"2003-06-30","last_filed_date":"2026-08-21","last_ingest":"2026-08-22T05:23:40.159918+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"}}