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This Form 4 is a required filing under the Securities Exchange Act of 1934, and the securities in this Form 4 are subject to the terms of that certain Lock-Up Letter\nAgreement, by and between the issuer and the Reporting Person, dated as of June 1, 2026, and is subject to clause (h) thereunder."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The shares were sold on August 3, 2026 at a price of $10.7281 per share."}],"balance_after":13522,"source":{"system":"sec-edgar","filing":"0001628280-26-053354","document":"wk-form4_1785960610.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/709283/000162828026053354/wk-form4_1785960610.xml","form_type":"4"}},{"id":714103,"issuer":{"id":4987,"kind":"organization","name":"QUANTUM CORP /DE/","symbol":"QMCO"},"owners":[{"id":31876,"kind":"person","name":"Nash Laura A.","position":1,"cik":"0001979364","reported_name":"Nash Laura A.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Accounting Officer"}}],"security":"Common Stock","published_at":"2026-07-07T20:09:39.000Z","date":"2026-07-02","kind":"sale","planned":false,"acquired":false,"shares":260,"price":10.51,"value":2732.6,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents the number of shares automatically sold on a non-discretionary basis, to cover tax withholding obligations in connection with the vesting of restricted stock units granted\non July 1, 2023. This Form 4 is a required filing under the Securities Exchange Act of 1934, and the securities in this Form 4 are subject to the terms of that certain Lock-Up Letter\nAgreement, by and between the issuer and the Reporting Person, dated as of June 1, 2026, and is subject to clause (h) thereunder."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Represents a weighted average price. These shares were sold as part of block trades for multiple security holders of the issuer on July 2, 2026, at a price ranging from $10.48 to\n$10.53. The Reporting Person undertakes to provide upon request by the Securities and Exchange Commission, the issuer, or a securityholder of the issuer detailed information regarding\nthe number of shares sold and the prices at which the transactions were executed."}],"balance_after":10770,"source":{"system":"sec-edgar","filing":"0001628280-26-047490","document":"wk-form4_1783454977.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/709283/000162828026047490/wk-form4_1783454977.xml","form_type":"4"}},{"id":714104,"issuer":{"id":4987,"kind":"organization","name":"QUANTUM CORP /DE/","symbol":"QMCO"},"owners":[{"id":31877,"kind":"person","name":"Meyrath Hugues","position":1,"cik":"0001419111","reported_name":"Meyrath Hugues","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & CEO"}}],"security":"Common Stock","published_at":"2026-07-07T20:07:38.000Z","date":"2026-07-02","kind":"sale","planned":false,"acquired":false,"shares":6232,"price":10.51,"value":65498.32,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents the number of shares automatically sold on a non-discretionary basis, to cover tax withholding obligations in connection with the vesting of restricted stock units granted\non November 1, 2025 and January 1, 2026.This Form 4 is a required filing under the Securities Exchange Act of 1934, and the securities in this Form 4 are subject to the terms of that\ncertain Lock-Up Letter Agreement, by and between the issuer and the Reporting Person, dated as of June 1, 2026, and is subject to clause (h) thereunder."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Represents a weighted average price. These shares were sold as part of block trades for multiple security holders of the issuer on July 2, 2026, at a price ranging from $10.48 to\n$10.53. The Reporting Person undertakes to provide upon request by the Securities and Exchange Commission, the issuer, or a securityholder of the issuer detailed information regarding\nthe number of shares sold and the prices at which the transactions were executed."}],"balance_after":118468,"source":{"system":"sec-edgar","filing":"0001628280-26-047487","document":"wk-form4_1783454856.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/709283/000162828026047487/wk-form4_1783454856.xml","form_type":"4"}},{"id":747159,"issuer":{"id":4987,"kind":"organization","name":"QUANTUM CORP /DE/","symbol":"QMCO"},"owners":[{"id":40739,"kind":"person","name":"FICHTHORN JOHN","position":1,"cik":"0001411509","reported_name":"FICHTHORN JOHN","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Convertible Notes","published_at":"2026-06-09T01:54:36.000Z","date":"2026-06-04","kind":"exercise","planned":false,"acquired":false,"shares":57241228,"ownership":{"direct":false,"nature":"by Dialectic Technology SPV LLC"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"On June 4, 2026 (the \"Closing Date\"), pursuant to a Conversion Agreement dated June 1, 2026 (the \"Conversion Agreement\"), by and among, among others, the Issuer and Dialectic (as defined below), Dialectic converted $57,241,228.00 of the previously issued 10.00% PIK senior secured convertible notes due 2028 (the \"Convertible Notes\"), consisting of the entire principal amount and all accrued and unpaid interest thereon, subject to certain conditions set forth in the Conversion Agreement (the \"Conversion\")."},{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"In connection with the Conversion, on the Closing Date, the Convertible Notes were cancelled, and the Issuer issued to Dialectic 11,020,645 shares of Common Stock (as defined below)."},{"field":"shares","element":"transactionShares","label":"F1","text":"On June 4, 2026 (the \"Closing Date\"), pursuant to a Conversion Agreement dated June 1, 2026 (the \"Conversion Agreement\"), by and among, among others, the Issuer and Dialectic (as defined below), Dialectic converted $57,241,228.00 of the previously issued 10.00% PIK senior secured convertible notes due 2028 (the \"Convertible Notes\"), consisting of the entire principal amount and all accrued and unpaid interest thereon, subject to certain conditions set forth in the Conversion Agreement (the \"Conversion\")."},{"field":"shares","element":"transactionShares","label":"F2","text":"In connection with the Conversion, on the Closing Date, the Convertible Notes were cancelled, and the Issuer issued to Dialectic 11,020,645 shares of Common Stock (as defined below)."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"On June 4, 2026 (the \"Closing Date\"), pursuant to a Conversion Agreement dated June 1, 2026 (the \"Conversion Agreement\"), by and among, among others, the Issuer and Dialectic (as defined below), Dialectic converted $57,241,228.00 of the previously issued 10.00% PIK senior secured convertible notes due 2028 (the \"Convertible Notes\"), consisting of the entire principal amount and all accrued and unpaid interest thereon, subject to certain conditions set forth in the Conversion Agreement (the \"Conversion\")."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"These securities are held directly by Dialectic, a 10% holder of the Issuer, and indirectly by John Fichthorn. Mr. Fichthorn is the Manager of Dialectic Technology Manager LLC, the Manager of Dialectic. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of the Reporting Person's pecuniary interest therein, if any."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"On June 4, 2026 (the \"Closing Date\"), pursuant to a Conversion Agreement dated June 1, 2026 (the \"Conversion Agreement\"), by and among, among others, the Issuer and Dialectic (as defined below), Dialectic converted $57,241,228.00 of the previously issued 10.00% PIK senior secured convertible notes due 2028 (the \"Convertible Notes\"), consisting of the entire principal amount and all accrued and unpaid interest thereon, subject to certain conditions set forth in the Conversion Agreement (the \"Conversion\")."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"In connection with the Conversion, on the Closing Date, the Convertible Notes were cancelled, and the Issuer issued to Dialectic 11,020,645 shares of Common Stock (as defined below)."},{"field":"derivative.underlying_shares","element":"underlyingSecurityShares","label":"F1","text":"On June 4, 2026 (the \"Closing Date\"), pursuant to a Conversion Agreement dated June 1, 2026 (the \"Conversion Agreement\"), by and among, among others, the Issuer and Dialectic (as defined below), Dialectic converted $57,241,228.00 of the previously issued 10.00% PIK senior secured convertible notes due 2028 (the \"Convertible Notes\"), consisting of the entire principal amount and all accrued and unpaid interest thereon, subject to certain conditions set forth in the Conversion Agreement (the \"Conversion\")."},{"field":"derivative.underlying_shares","element":"underlyingSecurityShares","label":"F2","text":"In connection with the Conversion, on the Closing Date, the Convertible Notes were cancelled, and the Issuer issued to Dialectic 11,020,645 shares of Common Stock (as defined below)."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"On June 4, 2026 (the \"Closing Date\"), pursuant to a Conversion Agreement dated June 1, 2026 (the \"Conversion Agreement\"), by and among, among others, the Issuer and Dialectic (as defined below), Dialectic converted $57,241,228.00 of the previously issued 10.00% PIK senior secured convertible notes due 2028 (the \"Convertible Notes\"), consisting of the entire principal amount and all accrued and unpaid interest thereon, subject to certain conditions set forth in the Conversion Agreement (the \"Conversion\")."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"These securities are held directly by Dialectic, a 10% holder of the Issuer, and indirectly by John Fichthorn. Mr. Fichthorn is the Manager of Dialectic Technology Manager LLC, the Manager of Dialectic. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of the Reporting Person's pecuniary interest therein, if any."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"These securities are held directly by Dialectic, a 10% holder of the Issuer, and indirectly by John Fichthorn. Mr. Fichthorn is the Manager of Dialectic Technology Manager LLC, the Manager of Dialectic. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of the Reporting Person's pecuniary interest therein, if any."}],"balance_after":0,"derivative":{"exercise_price":5.194,"exercise_date":"2025-12-18","underlying":"Common Stock","underlying_shares":11020645},"source":{"system":"sec-edgar","filing":"0001628280-26-041759","document":"wk-form4_1780970074.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/709283/000162828026041759/wk-form4_1780970074.xml","form_type":"4"}},{"id":747158,"issuer":{"id":4987,"kind":"organization","name":"QUANTUM CORP /DE/","symbol":"QMCO"},"owners":[{"id":40739,"kind":"person","name":"FICHTHORN JOHN","position":1,"cik":"0001411509","reported_name":"FICHTHORN JOHN","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Warrant (right to buy)","published_at":"2026-06-09T01:54:36.000Z","date":"2026-06-01","kind":"other","planned":false,"acquired":true,"shares":105911,"ownership":{"direct":false,"nature":"by Dialectic Technology SPV LLC"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F6","text":"On June 1, 2026 (\"Issuance Date\"), the Issuer issued to Dialectic Technology SPV LLC (\"Dialectic\") a warrant (the \"Conversion Warrant\") to purchase 105,911 (as may be adjusted pursuant to the Conversion Warrant) shares of common stock, par value $0.01 per share of the Issuer (the \"Common Stock\"), at an exercise price equal to $5.194 per share (as adjusted from time to time in accordance with the Conversion Warrant) on or after the Issuance Date and until the date that is five (5) years from the Issuance Date."},{"field":"date","element":"transactionDate","label":"F6","text":"On June 1, 2026 (\"Issuance Date\"), the Issuer issued to Dialectic Technology SPV LLC (\"Dialectic\") a warrant (the \"Conversion Warrant\") to purchase 105,911 (as may be adjusted pursuant to the Conversion Warrant) shares of common stock, par value $0.01 per share of the Issuer (the \"Common Stock\"), at an exercise price equal to $5.194 per share (as adjusted from time to time in accordance with the Conversion Warrant) on or after the Issuance Date and until the date that is five (5) years from the Issuance Date."},{"field":"shares","element":"transactionShares","label":"F6","text":"On June 1, 2026 (\"Issuance Date\"), the Issuer issued to Dialectic Technology SPV LLC (\"Dialectic\") a warrant (the \"Conversion Warrant\") to purchase 105,911 (as may be adjusted pursuant to the Conversion Warrant) shares of common stock, par value $0.01 per share of the Issuer (the \"Common Stock\"), at an exercise price equal to $5.194 per share (as adjusted from time to time in accordance with the Conversion Warrant) on or after the Issuance Date and until the date that is five (5) years from the Issuance Date."},{"field":"price","element":"transactionPricePerShare","label":"F6","text":"On June 1, 2026 (\"Issuance Date\"), the Issuer issued to Dialectic Technology SPV LLC (\"Dialectic\") a warrant (the \"Conversion Warrant\") to purchase 105,911 (as may be adjusted pursuant to the Conversion Warrant) shares of common stock, par value $0.01 per share of the Issuer (the \"Common Stock\"), at an exercise price equal to $5.194 per share (as adjusted from time to time in accordance with the Conversion Warrant) on or after the Issuance Date and until the date that is five (5) years from the Issuance Date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F6","text":"On June 1, 2026 (\"Issuance Date\"), the Issuer issued to Dialectic Technology SPV LLC (\"Dialectic\") a warrant (the \"Conversion Warrant\") to purchase 105,911 (as may be adjusted pursuant to the Conversion Warrant) shares of common stock, par value $0.01 per share of the Issuer (the \"Common Stock\"), at an exercise price equal to $5.194 per share (as adjusted from time to time in accordance with the Conversion Warrant) on or after the Issuance Date and until the date that is five (5) years from the Issuance Date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F6","text":"On June 1, 2026 (\"Issuance Date\"), the Issuer issued to Dialectic Technology SPV LLC (\"Dialectic\") a warrant (the \"Conversion Warrant\") to purchase 105,911 (as may be adjusted pursuant to the Conversion Warrant) shares of common stock, par value $0.01 per share of the Issuer (the \"Common Stock\"), at an exercise price equal to $5.194 per share (as adjusted from time to time in accordance with the Conversion Warrant) on or after the Issuance Date and until the date that is five (5) years from the Issuance Date."},{"field":"derivative.underlying_shares","element":"underlyingSecurityShares","label":"F6","text":"On June 1, 2026 (\"Issuance Date\"), the Issuer issued to Dialectic Technology SPV LLC (\"Dialectic\") a warrant (the \"Conversion Warrant\") to purchase 105,911 (as may be adjusted pursuant to the Conversion Warrant) shares of common stock, par value $0.01 per share of the Issuer (the \"Common Stock\"), at an exercise price equal to $5.194 per share (as adjusted from time to time in accordance with the Conversion Warrant) on or after the Issuance Date and until the date that is five (5) years from the Issuance Date."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F6","text":"On June 1, 2026 (\"Issuance Date\"), the Issuer issued to Dialectic Technology SPV LLC (\"Dialectic\") a warrant (the \"Conversion Warrant\") to purchase 105,911 (as may be adjusted pursuant to the Conversion Warrant) shares of common stock, par value $0.01 per share of the Issuer (the \"Common Stock\"), at an exercise price equal to $5.194 per share (as adjusted from time to time in accordance with the Conversion Warrant) on or after the Issuance Date and until the date that is five (5) years from the Issuance Date."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"These securities are held directly by Dialectic, a 10% holder of the Issuer, and indirectly by John Fichthorn. Mr. Fichthorn is the Manager of Dialectic Technology Manager LLC, the Manager of Dialectic. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of the Reporting Person's pecuniary interest therein, if any."}],"balance_after":105911,"derivative":{"exercise_price":5.194,"exercise_date":"2026-06-01","expiration_date":"2031-06-01","underlying":"Common Stock","underlying_shares":105911},"source":{"system":"sec-edgar","filing":"0001628280-26-041759","document":"wk-form4_1780970074.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/709283/000162828026041759/wk-form4_1780970074.xml","form_type":"4"}},{"id":747157,"issuer":{"id":4987,"kind":"organization","name":"QUANTUM CORP /DE/","symbol":"QMCO"},"owners":[{"id":40739,"kind":"person","name":"FICHTHORN JOHN","position":1,"cik":"0001411509","reported_name":"FICHTHORN JOHN","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2026-06-09T01:54:36.000Z","date":"2026-06-04","kind":"grant","planned":false,"acquired":true,"shares":3083975,"price":5.194,"value":16018166.15,"ownership":{"direct":false,"nature":"by Dialectic Technology SPV LLC"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"On June 4, 2026 (the \"Closing Date\"), pursuant to a Conversion Agreement dated June 1, 2026 (the \"Conversion Agreement\"), by and among, among others, the Issuer and Dialectic (as defined below), Dialectic converted $57,241,228.00 of the previously issued 10.00% PIK senior secured convertible notes due 2028 (the \"Convertible Notes\"), consisting of the entire principal amount and all accrued and unpaid interest thereon, subject to certain conditions set forth in the Conversion Agreement (the \"Conversion\")."},{"field":"kind","element":"transactionCoding","label":"F2","text":"In connection with the Conversion, on the Closing Date, the Convertible Notes were cancelled, and the Issuer issued to Dialectic 11,020,645 shares of Common Stock (as defined below)."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"On June 4, 2026 (the \"Closing Date\"), pursuant to a Conversion Agreement dated June 1, 2026 (the \"Conversion Agreement\"), by and among, among others, the Issuer and Dialectic (as defined below), Dialectic converted $57,241,228.00 of the previously issued 10.00% PIK senior secured convertible notes due 2028 (the \"Convertible Notes\"), consisting of the entire principal amount and all accrued and unpaid interest thereon, subject to certain conditions set forth in the Conversion Agreement (the \"Conversion\")."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"In connection with the Conversion, on the Closing Date, the Convertible Notes were cancelled, and the Issuer issued to Dialectic 11,020,645 shares of Common Stock (as defined below)."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F4","text":"On the Closing Date, as consideration for the Conversion, the Issuer issued to Dialectic, (i) 3,083,975 additional shares of Common Stock (the \"Consideration Shares\"), which represents the quotient of (A) approximately $13.0 million, the present value of nominal PIK interest that would accrue on the Convertible Notes from the Closing Date to the maturity date thereof, discounted at a rate of 11%, plus (B) approximately $3.0 million, the Term Loan Deferred Cash Interest Amount (as defined in the Credit Agreement) owed to Dialectic, divided by $5.194."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"These securities are held directly by Dialectic, a 10% holder of the Issuer, and indirectly by John Fichthorn. Mr. Fichthorn is the Manager of Dialectic Technology Manager LLC, the Manager of Dialectic. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of the Reporting Person's pecuniary interest therein, if any."}],"balance_after":14104620,"source":{"system":"sec-edgar","filing":"0001628280-26-041759","document":"wk-form4_1780970074.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/709283/000162828026041759/wk-form4_1780970074.xml","form_type":"4"}},{"id":747156,"issuer":{"id":4987,"kind":"organization","name":"QUANTUM CORP /DE/","symbol":"QMCO"},"owners":[{"id":40739,"kind":"person","name":"FICHTHORN JOHN","position":1,"cik":"0001411509","reported_name":"FICHTHORN JOHN","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2026-06-09T01:54:36.000Z","date":"2026-06-04","kind":"exercise","planned":false,"acquired":true,"shares":11020645,"price":5.194,"value":57241230.13,"ownership":{"direct":false,"nature":"by Dialectic Technology SPV LLC"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"On June 4, 2026 (the \"Closing Date\"), pursuant to a Conversion Agreement dated June 1, 2026 (the \"Conversion Agreement\"), by and among, among others, the Issuer and Dialectic (as defined below), Dialectic converted $57,241,228.00 of the previously issued 10.00% PIK senior secured convertible notes due 2028 (the \"Convertible Notes\"), consisting of the entire principal amount and all accrued and unpaid interest thereon, subject to certain conditions set forth in the Conversion Agreement (the \"Conversion\")."},{"field":"kind","element":"transactionCoding","label":"F2","text":"In connection with the Conversion, on the Closing Date, the Convertible Notes were cancelled, and the Issuer issued to Dialectic 11,020,645 shares of Common Stock (as defined below)."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"On June 4, 2026 (the \"Closing Date\"), pursuant to a Conversion Agreement dated June 1, 2026 (the \"Conversion Agreement\"), by and among, among others, the Issuer and Dialectic (as defined below), Dialectic converted $57,241,228.00 of the previously issued 10.00% PIK senior secured convertible notes due 2028 (the \"Convertible Notes\"), consisting of the entire principal amount and all accrued and unpaid interest thereon, subject to certain conditions set forth in the Conversion Agreement (the \"Conversion\")."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"In connection with the Conversion, on the Closing Date, the Convertible Notes were cancelled, and the Issuer issued to Dialectic 11,020,645 shares of Common Stock (as defined below)."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"These securities are held directly by Dialectic, a 10% holder of the Issuer, and indirectly by John Fichthorn. Mr. Fichthorn is the Manager of Dialectic Technology Manager LLC, the Manager of Dialectic. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of the Reporting Person's pecuniary interest therein, if any."}],"balance_after":11020645,"source":{"system":"sec-edgar","filing":"0001628280-26-041759","document":"wk-form4_1780970074.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/709283/000162828026041759/wk-form4_1780970074.xml","form_type":"4"}},{"id":747163,"issuer":{"id":4987,"kind":"organization","name":"QUANTUM CORP /DE/","symbol":"QMCO"},"owners":[{"id":40740,"kind":"organization","name":"Dialectic Technology SPV LLC","position":1,"cik":"0002055322","reported_name":"Dialectic Technology SPV LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Convertible Notes","published_at":"2026-06-09T01:21:36.000Z","date":"2026-06-04","kind":"exercise","planned":false,"acquired":false,"reported_value":57241228,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"On June 4, 2026 (the \"Closing Date\"), pursuant to a Conversion Agreement dated June 1, 2026 (the \"Conversion Agreement\"), by and among, among others, the Issuer and Dialectic, Dialectic converted $57,241,228.00 of the previously issued senior secured convertible notes (the \"Convertible Notes\"), consisting of the entire principal amount and all accrued and unpaid interest thereon, subject to certain conditions set forth in the Conversion Agreement (the \"Conversion\")."},{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"In connection with the Conversion, on the Closing Date, the Convertible Notes were cancelled, and the Issuer issued to Dialectic 11,020,645 shares of Common Stock."},{"field":"reported_value","element":"transactionTotalValue","label":"F2","text":"On June 4, 2026 (the \"Closing Date\"), pursuant to a Conversion Agreement dated June 1, 2026 (the \"Conversion Agreement\"), by and among, among others, the Issuer and Dialectic, Dialectic converted $57,241,228.00 of the previously issued senior secured convertible notes (the \"Convertible Notes\"), consisting of the entire principal amount and all accrued and unpaid interest thereon, subject to certain conditions set forth in the Conversion Agreement (the \"Conversion\")."},{"field":"reported_value","element":"transactionTotalValue","label":"F3","text":"In connection with the Conversion, on the Closing Date, the Convertible Notes were cancelled, and the Issuer issued to Dialectic 11,020,645 shares of Common Stock."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"On June 4, 2026 (the \"Closing Date\"), pursuant to a Conversion Agreement dated June 1, 2026 (the \"Conversion Agreement\"), by and among, among others, the Issuer and Dialectic, Dialectic converted $57,241,228.00 of the previously issued senior secured convertible notes (the \"Convertible Notes\"), consisting of the entire principal amount and all accrued and unpaid interest thereon, subject to certain conditions set forth in the Conversion Agreement (the \"Conversion\")."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"In connection with the Conversion, on the Closing Date, the Convertible Notes were cancelled, and the Issuer issued to Dialectic 11,020,645 shares of Common Stock."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"On June 4, 2026 (the \"Closing Date\"), pursuant to a Conversion Agreement dated June 1, 2026 (the \"Conversion Agreement\"), by and among, among others, the Issuer and Dialectic, Dialectic converted $57,241,228.00 of the previously issued senior secured convertible notes (the \"Convertible Notes\"), consisting of the entire principal amount and all accrued and unpaid interest thereon, subject to certain conditions set forth in the Conversion Agreement (the \"Conversion\")."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"In connection with the Conversion, on the Closing Date, the Convertible Notes were cancelled, and the Issuer issued to Dialectic 11,020,645 shares of Common Stock."},{"field":"derivative.underlying_shares","element":"underlyingSecurityShares","label":"F2","text":"On June 4, 2026 (the \"Closing Date\"), pursuant to a Conversion Agreement dated June 1, 2026 (the \"Conversion Agreement\"), by and among, among others, the Issuer and Dialectic, Dialectic converted $57,241,228.00 of the previously issued senior secured convertible notes (the \"Convertible Notes\"), consisting of the entire principal amount and all accrued and unpaid interest thereon, subject to certain conditions set forth in the Conversion Agreement (the \"Conversion\")."},{"field":"derivative.underlying_shares","element":"underlyingSecurityShares","label":"F3","text":"In connection with the Conversion, on the Closing Date, the Convertible Notes were cancelled, and the Issuer issued to Dialectic 11,020,645 shares of Common Stock."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"On June 4, 2026 (the \"Closing Date\"), pursuant to a Conversion Agreement dated June 1, 2026 (the \"Conversion Agreement\"), by and among, among others, the Issuer and Dialectic, Dialectic converted $57,241,228.00 of the previously issued senior secured convertible notes (the \"Convertible Notes\"), consisting of the entire principal amount and all accrued and unpaid interest thereon, subject to certain conditions set forth in the Conversion Agreement (the \"Conversion\")."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"In connection with the Conversion, on the Closing Date, the Convertible Notes were cancelled, and the Issuer issued to Dialectic 11,020,645 shares of Common Stock."}],"balance_after":0,"derivative":{"exercise_price":5.194,"exercise_date":"2025-12-18","underlying":"Common Stock","underlying_shares":11020645},"source":{"system":"sec-edgar","filing":"0000899140-26-000636","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/709283/000089914026000636/form4.xml","form_type":"4"}},{"id":747162,"issuer":{"id":4987,"kind":"organization","name":"QUANTUM CORP /DE/","symbol":"QMCO"},"owners":[{"id":40740,"kind":"organization","name":"Dialectic Technology SPV LLC","position":1,"cik":"0002055322","reported_name":"Dialectic Technology SPV LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Warrant (right to buy)","published_at":"2026-06-09T01:21:36.000Z","date":"2026-06-01","kind":"other","planned":false,"acquired":true,"shares":105911,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"On June 1, 2026 (\"Issuance Date\"), the Issuer issued to Dialectic Technology SPV LLC (\"Dialectic\") a warrant (the \"Conversion Warrant\") to purchase 105,911 (as may be adjusted pursuant to the Conversion Warrant) shares of common stock, par value $0.01 per share of the Issuer (the \"Common Stock\"), at an exercise price equal to $5.194 per share (as adjusted from time to time in accordance with the Conversion Warrant) on or after the Issuance Date and until the date that is five (5) years from the Issuance Date."},{"field":"date","element":"transactionDate","label":"F1","text":"On June 1, 2026 (\"Issuance Date\"), the Issuer issued to Dialectic Technology SPV LLC (\"Dialectic\") a warrant (the \"Conversion Warrant\") to purchase 105,911 (as may be adjusted pursuant to the Conversion Warrant) shares of common stock, par value $0.01 per share of the Issuer (the \"Common Stock\"), at an exercise price equal to $5.194 per share (as adjusted from time to time in accordance with the Conversion Warrant) on or after the Issuance Date and until the date that is five (5) years from the Issuance Date."},{"field":"shares","element":"transactionShares","label":"F1","text":"On June 1, 2026 (\"Issuance Date\"), the Issuer issued to Dialectic Technology SPV LLC (\"Dialectic\") a warrant (the \"Conversion Warrant\") to purchase 105,911 (as may be adjusted pursuant to the Conversion Warrant) shares of common stock, par value $0.01 per share of the Issuer (the \"Common Stock\"), at an exercise price equal to $5.194 per share (as adjusted from time to time in accordance with the Conversion Warrant) on or after the Issuance Date and until the date that is five (5) years from the Issuance Date."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"On June 1, 2026 (\"Issuance Date\"), the Issuer issued to Dialectic Technology SPV LLC (\"Dialectic\") a warrant (the \"Conversion Warrant\") to purchase 105,911 (as may be adjusted pursuant to the Conversion Warrant) shares of common stock, par value $0.01 per share of the Issuer (the \"Common Stock\"), at an exercise price equal to $5.194 per share (as adjusted from time to time in accordance with the Conversion Warrant) on or after the Issuance Date and until the date that is five (5) years from the Issuance Date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"On June 1, 2026 (\"Issuance Date\"), the Issuer issued to Dialectic Technology SPV LLC (\"Dialectic\") a warrant (the \"Conversion Warrant\") to purchase 105,911 (as may be adjusted pursuant to the Conversion Warrant) shares of common stock, par value $0.01 per share of the Issuer (the \"Common Stock\"), at an exercise price equal to $5.194 per share (as adjusted from time to time in accordance with the Conversion Warrant) on or after the Issuance Date and until the date that is five (5) years from the Issuance Date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"On June 1, 2026 (\"Issuance Date\"), the Issuer issued to Dialectic Technology SPV LLC (\"Dialectic\") a warrant (the \"Conversion Warrant\") to purchase 105,911 (as may be adjusted pursuant to the Conversion Warrant) shares of common stock, par value $0.01 per share of the Issuer (the \"Common Stock\"), at an exercise price equal to $5.194 per share (as adjusted from time to time in accordance with the Conversion Warrant) on or after the Issuance Date and until the date that is five (5) years from the Issuance Date."},{"field":"derivative.underlying_shares","element":"underlyingSecurityShares","label":"F1","text":"On June 1, 2026 (\"Issuance Date\"), the Issuer issued to Dialectic Technology SPV LLC (\"Dialectic\") a warrant (the \"Conversion Warrant\") to purchase 105,911 (as may be adjusted pursuant to the Conversion Warrant) shares of common stock, par value $0.01 per share of the Issuer (the \"Common Stock\"), at an exercise price equal to $5.194 per share (as adjusted from time to time in accordance with the Conversion Warrant) on or after the Issuance Date and until the date that is five (5) years from the Issuance Date."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"On June 1, 2026 (\"Issuance Date\"), the Issuer issued to Dialectic Technology SPV LLC (\"Dialectic\") a warrant (the \"Conversion Warrant\") to purchase 105,911 (as may be adjusted pursuant to the Conversion Warrant) shares of common stock, par value $0.01 per share of the Issuer (the \"Common Stock\"), at an exercise price equal to $5.194 per share (as adjusted from time to time in accordance with the Conversion Warrant) on or after the Issuance Date and until the date that is five (5) years from the Issuance Date."}],"balance_after":105911,"derivative":{"exercise_price":5.194,"exercise_date":"2026-06-01","expiration_date":"2031-07-01","underlying":"Common Stock","underlying_shares":105911},"source":{"system":"sec-edgar","filing":"0000899140-26-000636","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/709283/000089914026000636/form4.xml","form_type":"4"}},{"id":747161,"issuer":{"id":4987,"kind":"organization","name":"QUANTUM CORP /DE/","symbol":"QMCO"},"owners":[{"id":40740,"kind":"organization","name":"Dialectic Technology SPV LLC","position":1,"cik":"0002055322","reported_name":"Dialectic Technology SPV LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2026-06-09T01:21:36.000Z","date":"2026-06-04","kind":"grant","planned":false,"acquired":true,"shares":3083975,"price":5.194,"value":16018166.15,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F4","text":"On the Closing Date, as consideration for the Conversion, the Issuer issued to Dialectic, (i) 3,083,975 additional shares of Common Stock (the \"Consideration Shares\"), which represents the quotient of (A) approximately $13.0 million, the present value of nominal PIK interest that would accrue on the Convertible Notes from the Closing Date to the maturity date thereof, discounted at a rate of 11%, plus (B) approximately $3.0 million, the Term Loan Deferred Cash Interest Amount (as defined in the Credit Agreement) owed to Dialectic, divided by $5.194."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"On June 4, 2026 (the \"Closing Date\"), pursuant to a Conversion Agreement dated June 1, 2026 (the \"Conversion Agreement\"), by and among, among others, the Issuer and Dialectic, Dialectic converted $57,241,228.00 of the previously issued senior secured convertible notes (the \"Convertible Notes\"), consisting of the entire principal amount and all accrued and unpaid interest thereon, subject to certain conditions set forth in the Conversion Agreement (the \"Conversion\")."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"In connection with the Conversion, on the Closing Date, the Convertible Notes were cancelled, and the Issuer issued to Dialectic 11,020,645 shares of Common Stock."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F4","text":"On the Closing Date, as consideration for the Conversion, the Issuer issued to Dialectic, (i) 3,083,975 additional shares of Common Stock (the \"Consideration Shares\"), which represents the quotient of (A) approximately $13.0 million, the present value of nominal PIK interest that would accrue on the Convertible Notes from the Closing Date to the maturity date thereof, discounted at a rate of 11%, plus (B) approximately $3.0 million, the Term Loan Deferred Cash Interest Amount (as defined in the Credit Agreement) owed to Dialectic, divided by $5.194."}],"balance_after":14104620,"source":{"system":"sec-edgar","filing":"0000899140-26-000636","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/709283/000089914026000636/form4.xml","form_type":"4"}},{"id":747160,"issuer":{"id":4987,"kind":"organization","name":"QUANTUM CORP /DE/","symbol":"QMCO"},"owners":[{"id":40740,"kind":"organization","name":"Dialectic Technology SPV LLC","position":1,"cik":"0002055322","reported_name":"Dialectic Technology SPV LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common 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Stock."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"On June 4, 2026 (the \"Closing Date\"), pursuant to a Conversion Agreement dated June 1, 2026 (the \"Conversion Agreement\"), by and among, among others, the Issuer and Dialectic, Dialectic converted $57,241,228.00 of the previously issued senior secured convertible notes (the \"Convertible Notes\"), consisting of the entire principal amount and all accrued and unpaid interest thereon, subject to certain conditions set forth in the Conversion Agreement (the \"Conversion\")."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"In connection with the Conversion, on the Closing Date, the Convertible Notes were cancelled, and the Issuer issued to Dialectic 11,020,645 shares of Common 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The RSUs vest in full on the earlier of January 1, 2027 or the date of the Company's next annual meeting of stockholders, in each case subject to the Reporting Person's continued service on the Company's Board of Directors."}],"balance_after":39675,"source":{"system":"sec-edgar","filing":"0001628280-26-000745","document":"wk-form4_1767659051.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/709283/000162828026000745/wk-form4_1767659051.xml","form_type":"4"}},{"id":954208,"issuer":{"id":4987,"kind":"organization","name":"QUANTUM CORP /DE/","symbol":"QMCO"},"owners":[{"id":40739,"kind":"person","name":"FICHTHORN JOHN","position":1,"cik":"0001411509","reported_name":"FICHTHORN JOHN","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2026-01-06T00:22:51.000Z","date":"2026-01-01","kind":"grant","planned":false,"acquired":true,"shares":12000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Grant of restricted stock units (RSUs), each of which represents a contingent right to receive one share of common stock of QMCO. 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The Convertible Notes mature on December 18, 2028 (the \"Maturity Date\") and have an interest rate of 10.00% per annum, payable in kind, compounded annually. The initial conversion price of the Convertible Notes equals $10.00 per share (the \"Conversion Price\") of Common Stock, subject to adjustment, and includes antidilution protections in favor of Dialectic as set forth in the Convertible Notes. The Conversion Price is subject to adjustment on the last day of the three (3) calendar quarters immediately following the Closing Date (each, a \"Reset Price Date\") to the greater of (a) $4.00 per share and (b) the lesser of (i) the then Conversion Price and (ii) the 30-day daily VWAP of the Common Stock immediately preceding the Reset Price Date."},{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F5","text":"Based on the Conversion Price as of the Closing Date, the Convertible Notes were convertible into 5,471,811 shares of Common Stock. At the Issuer's option, all outstanding principal amount, accrued and unpaid interest and premium, if any, of any Convertible Notes outstanding on the Maturity Date will be exchanged into shares of Common Stock at an exchange price equal to 80% of the market price as set forth in the Convertible Notes. Following the six (6)-month anniversary of Closing Date, if certain conditions are met, the Issuer may elect to require the exchange of a portion of the total outstanding amount of any Convertible Notes into shares of Common Stock at the then outstanding Conversion Price."},{"field":"shares","element":"transactionShares","label":"F4","text":"On December 18, 2025 (the \"Closing Date\"), the Issuer issued senior secured convertible notes (the \"Convertible Notes\") in the aggregate principal amount of $54,718,114 to Dialectic. The Convertible Notes mature on December 18, 2028 (the \"Maturity Date\") and have an interest rate of 10.00% per annum, payable in kind, compounded annually. The initial conversion price of the Convertible Notes equals $10.00 per share (the \"Conversion Price\") of Common Stock, subject to adjustment, and includes antidilution protections in favor of Dialectic as set forth in the Convertible Notes. The Conversion Price is subject to adjustment on the last day of the three (3) calendar quarters immediately following the Closing Date (each, a \"Reset Price Date\") to the greater of (a) $4.00 per share and (b) the lesser of (i) the then Conversion Price and (ii) the 30-day daily VWAP of the Common Stock immediately preceding the Reset Price Date."},{"field":"shares","element":"transactionShares","label":"F5","text":"Based on the Conversion Price as of the Closing Date, the Convertible Notes were convertible into 5,471,811 shares of Common Stock. At the Issuer's option, all outstanding principal amount, accrued and unpaid interest and premium, if any, of any Convertible Notes outstanding on the Maturity Date will be exchanged into shares of Common Stock at an exchange price equal to 80% of the market price as set forth in the Convertible Notes. Following the six (6)-month anniversary of Closing Date, if certain conditions are met, the Issuer may elect to require the exchange of a portion of the total outstanding amount of any Convertible Notes into shares of Common Stock at the then outstanding Conversion Price."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"On December 18, 2025 (the \"Closing Date\"), the Issuer issued senior secured convertible notes (the \"Convertible Notes\") in the aggregate principal amount of $54,718,114 to Dialectic. The Convertible Notes mature on December 18, 2028 (the \"Maturity Date\") and have an interest rate of 10.00% per annum, payable in kind, compounded annually. The initial conversion price of the Convertible Notes equals $10.00 per share (the \"Conversion Price\") of Common Stock, subject to adjustment, and includes antidilution protections in favor of Dialectic as set forth in the Convertible Notes. The Conversion Price is subject to adjustment on the last day of the three (3) calendar quarters immediately following the Closing Date (each, a \"Reset Price Date\") to the greater of (a) $4.00 per share and (b) the lesser of (i) the then Conversion Price and (ii) the 30-day daily VWAP of the Common Stock immediately preceding the Reset Price Date."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"Based on the Conversion Price as of the Closing Date, the Convertible Notes were convertible into 5,471,811 shares of Common Stock. At the Issuer's option, all outstanding principal amount, accrued and unpaid interest and premium, if any, of any Convertible Notes outstanding on the Maturity Date will be exchanged into shares of Common Stock at an exchange price equal to 80% of the market price as set forth in the Convertible Notes. Following the six (6)-month anniversary of Closing Date, if certain conditions are met, the Issuer may elect to require the exchange of a portion of the total outstanding amount of any Convertible Notes into shares of Common Stock at the then outstanding Conversion Price."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"On December 18, 2025 (the \"Closing Date\"), the Issuer issued senior secured convertible notes (the \"Convertible Notes\") in the aggregate principal amount of $54,718,114 to Dialectic. The Convertible Notes mature on December 18, 2028 (the \"Maturity Date\") and have an interest rate of 10.00% per annum, payable in kind, compounded annually. The initial conversion price of the Convertible Notes equals $10.00 per share (the \"Conversion Price\") of Common Stock, subject to adjustment, and includes antidilution protections in favor of Dialectic as set forth in the Convertible Notes. The Conversion Price is subject to adjustment on the last day of the three (3) calendar quarters immediately following the Closing Date (each, a \"Reset Price Date\") to the greater of (a) $4.00 per share and (b) the lesser of (i) the then Conversion Price and (ii) the 30-day daily VWAP of the Common Stock immediately preceding the Reset Price Date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F5","text":"Based on the Conversion Price as of the Closing Date, the Convertible Notes were convertible into 5,471,811 shares of Common Stock. At the Issuer's option, all outstanding principal amount, accrued and unpaid interest and premium, if any, of any Convertible Notes outstanding on the Maturity Date will be exchanged into shares of Common Stock at an exchange price equal to 80% of the market price as set forth in the Convertible Notes. Following the six (6)-month anniversary of Closing Date, if certain conditions are met, the Issuer may elect to require the exchange of a portion of the total outstanding amount of any Convertible Notes into shares of Common Stock at the then outstanding Conversion Price."},{"field":"derivative.underlying_shares","element":"underlyingSecurityShares","label":"F4","text":"On December 18, 2025 (the \"Closing Date\"), the Issuer issued senior secured convertible notes (the \"Convertible Notes\") in the aggregate principal amount of $54,718,114 to Dialectic. The Convertible Notes mature on December 18, 2028 (the \"Maturity Date\") and have an interest rate of 10.00% per annum, payable in kind, compounded annually. The initial conversion price of the Convertible Notes equals $10.00 per share (the \"Conversion Price\") of Common Stock, subject to adjustment, and includes antidilution protections in favor of Dialectic as set forth in the Convertible Notes. The Conversion Price is subject to adjustment on the last day of the three (3) calendar quarters immediately following the Closing Date (each, a \"Reset Price Date\") to the greater of (a) $4.00 per share and (b) the lesser of (i) the then Conversion Price and (ii) the 30-day daily VWAP of the Common Stock immediately preceding the Reset Price Date."},{"field":"derivative.underlying_shares","element":"underlyingSecurityShares","label":"F5","text":"Based on the Conversion Price as of the Closing Date, the Convertible Notes were convertible into 5,471,811 shares of Common Stock. At the Issuer's option, all outstanding principal amount, accrued and unpaid interest and premium, if any, of any Convertible Notes outstanding on the Maturity Date will be exchanged into shares of Common Stock at an exchange price equal to 80% of the market price as set forth in the Convertible Notes. Following the six (6)-month anniversary of Closing Date, if certain conditions are met, the Issuer may elect to require the exchange of a portion of the total outstanding amount of any Convertible Notes into shares of Common Stock at the then outstanding Conversion Price."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F4","text":"On December 18, 2025 (the \"Closing Date\"), the Issuer issued senior secured convertible notes (the \"Convertible Notes\") in the aggregate principal amount of $54,718,114 to Dialectic. The Convertible Notes mature on December 18, 2028 (the \"Maturity Date\") and have an interest rate of 10.00% per annum, payable in kind, compounded annually. The initial conversion price of the Convertible Notes equals $10.00 per share (the \"Conversion Price\") of Common Stock, subject to adjustment, and includes antidilution protections in favor of Dialectic as set forth in the Convertible Notes. The Conversion Price is subject to adjustment on the last day of the three (3) calendar quarters immediately following the Closing Date (each, a \"Reset Price Date\") to the greater of (a) $4.00 per share and (b) the lesser of (i) the then Conversion Price and (ii) the 30-day daily VWAP of the Common Stock immediately preceding the Reset Price Date."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F5","text":"Based on the Conversion Price as of the Closing Date, the Convertible Notes were convertible into 5,471,811 shares of Common Stock. At the Issuer's option, all outstanding principal amount, accrued and unpaid interest and premium, if any, of any Convertible Notes outstanding on the Maturity Date will be exchanged into shares of Common Stock at an exchange price equal to 80% of the market price as set forth in the Convertible Notes. Following the six (6)-month anniversary of Closing Date, if certain conditions are met, the Issuer may elect to require the exchange of a portion of the total outstanding amount of any Convertible Notes into shares of Common Stock at the then outstanding Conversion Price."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"These securities are held directly by Dialectic, a 10% holder of the Issuer, and indirectly by John Fichthorn. Mr. Fichthorn is the Manager of Dialectic Technology Manager LLC, the Manager of Dialectic. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of the Reporting Person's pecuniary interest therein, if any."}],"balance_after":0,"derivative":{"exercise_date":"2025-12-18","expiration_date":"2028-12-18","underlying":"Common Stock"},"source":{"system":"sec-edgar","filing":"0000709283-25-000099","document":"wk-form4_1767058062.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/709283/000070928325000099/wk-form4_1767058062.xml","form_type":"4"}},{"id":959071,"issuer":{"id":4987,"kind":"organization","name":"QUANTUM CORP /DE/","symbol":"QMCO"},"owners":[{"id":40739,"kind":"person","name":"FICHTHORN JOHN","position":1,"cik":"0001411509","reported_name":"FICHTHORN JOHN","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Warrant (right to buy)","published_at":"2025-12-30T01:27:45.000Z","date":"2025-09-23","kind":"other","planned":false,"acquired":true,"shares":2653308,"ownership":{"direct":false,"nature":"by Dialectic Technology SPV LLC"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"On September 23, 2025 (\"Issuance Date\"), the Issuer issued to Dialectic Technology SPV LLC (\"Dialectic\") a warrant (the \"Forbearance Warrant\") to purchase 2,653,308 (as may be adjusted pursuant to the Forbearance Warrant) shares of common stock, par value $0.01 per share of the Issuer (the \"Common Stock\"), at an exercise price equal to $8.81 per share (as adjusted from time to time in accordance with the Forbearance Warrant) on or after the Issuance Date and until the date that is seven (7) years from the Issuance Date."},{"field":"date","element":"transactionDate","label":"F1","text":"On September 23, 2025 (\"Issuance Date\"), the Issuer issued to Dialectic Technology SPV LLC (\"Dialectic\") a warrant (the \"Forbearance Warrant\") to purchase 2,653,308 (as may be adjusted pursuant to the Forbearance Warrant) shares of common stock, par value $0.01 per share of the Issuer (the \"Common Stock\"), at an exercise price equal to $8.81 per share (as adjusted from time to time in accordance with the Forbearance Warrant) on or after the Issuance Date and until the date that is seven (7) years from the Issuance Date."},{"field":"date","element":"transactionDate","label":"F2","text":"The Forbearance Warrant is subject to a 4.99% beneficial ownership limitation and cannot be exercised in excess of such ownership limitation without waiver by Dialectic. On December 22, 2025, Dialectic provided notice to the Issuer of the waiver of such limitation, which will be effective February 21, 2026."},{"field":"shares","element":"transactionShares","label":"F1","text":"On September 23, 2025 (\"Issuance Date\"), the Issuer issued to Dialectic Technology SPV LLC (\"Dialectic\") a warrant (the \"Forbearance Warrant\") to purchase 2,653,308 (as may be adjusted pursuant to the Forbearance Warrant) shares of common stock, par value $0.01 per share of the Issuer (the \"Common Stock\"), at an exercise price equal to $8.81 per share (as adjusted from time to time in accordance with the Forbearance Warrant) on or after the Issuance Date and until the date that is seven (7) years from the Issuance Date."},{"field":"shares","element":"transactionShares","label":"F2","text":"The Forbearance Warrant is subject to a 4.99% beneficial ownership limitation and cannot be exercised in excess of such ownership limitation without waiver by Dialectic. On December 22, 2025, Dialectic provided notice to the Issuer of the waiver of such limitation, which will be effective February 21, 2026."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"On September 23, 2025 (\"Issuance Date\"), the Issuer issued to Dialectic Technology SPV LLC (\"Dialectic\") a warrant (the \"Forbearance Warrant\") to purchase 2,653,308 (as may be adjusted pursuant to the Forbearance Warrant) shares of common stock, par value $0.01 per share of the Issuer (the \"Common Stock\"), at an exercise price equal to $8.81 per share (as adjusted from time to time in accordance with the Forbearance Warrant) on or after the Issuance Date and until the date that is seven (7) years from the Issuance Date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"On September 23, 2025 (\"Issuance Date\"), the Issuer issued to Dialectic Technology SPV LLC (\"Dialectic\") a warrant (the \"Forbearance Warrant\") to purchase 2,653,308 (as may be adjusted pursuant to the Forbearance Warrant) shares of common stock, par value $0.01 per share of the Issuer (the \"Common Stock\"), at an exercise price equal to $8.81 per share (as adjusted from time to time in accordance with the Forbearance Warrant) on or after the Issuance Date and until the date that is seven (7) years from the Issuance Date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"On September 23, 2025 (\"Issuance Date\"), the Issuer issued to Dialectic Technology SPV LLC (\"Dialectic\") a warrant (the \"Forbearance Warrant\") to purchase 2,653,308 (as may be adjusted pursuant to the Forbearance Warrant) shares of common stock, par value $0.01 per share of the Issuer (the \"Common Stock\"), at an exercise price equal to $8.81 per share (as adjusted from time to time in accordance with the Forbearance Warrant) on or after the Issuance Date and until the date that is seven (7) years from the Issuance Date."},{"field":"derivative.underlying_shares","element":"underlyingSecurityShares","label":"F1","text":"On September 23, 2025 (\"Issuance Date\"), the Issuer issued to Dialectic Technology SPV LLC (\"Dialectic\") a warrant (the \"Forbearance Warrant\") to purchase 2,653,308 (as may be adjusted pursuant to the Forbearance Warrant) shares of common stock, par value $0.01 per share of the Issuer (the \"Common Stock\"), at an exercise price equal to $8.81 per share (as adjusted from time to time in accordance with the Forbearance Warrant) on or after the Issuance Date and until the date that is seven (7) years from the Issuance Date."},{"field":"derivative.underlying_shares","element":"underlyingSecurityShares","label":"F2","text":"The Forbearance Warrant is subject to a 4.99% beneficial ownership limitation and cannot be exercised in excess of such ownership limitation without waiver by Dialectic. On December 22, 2025, Dialectic provided notice to the Issuer of the waiver of such limitation, which will be effective February 21, 2026."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"On September 23, 2025 (\"Issuance Date\"), the Issuer issued to Dialectic Technology SPV LLC (\"Dialectic\") a warrant (the \"Forbearance Warrant\") to purchase 2,653,308 (as may be adjusted pursuant to the Forbearance Warrant) shares of common stock, par value $0.01 per share of the Issuer (the \"Common Stock\"), at an exercise price equal to $8.81 per share (as adjusted from time to time in accordance with the Forbearance Warrant) on or after the Issuance Date and until the date that is seven (7) years from the Issuance Date."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"The Forbearance Warrant is subject to a 4.99% beneficial ownership limitation and cannot be exercised in excess of such ownership limitation without waiver by Dialectic. On December 22, 2025, Dialectic provided notice to the Issuer of the waiver of such limitation, which will be effective February 21, 2026."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"These securities are held directly by Dialectic, a 10% holder of the Issuer, and indirectly by John Fichthorn. Mr. Fichthorn is the Manager of Dialectic Technology Manager LLC, the Manager of Dialectic. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of the Reporting Person's pecuniary interest therein, if any."}],"balance_after":2653308,"derivative":{"exercise_price":8.81,"exercise_date":"2025-09-23","expiration_date":"2032-09-23","underlying":"Common Stock","underlying_shares":2653308},"source":{"system":"sec-edgar","filing":"0000709283-25-000099","document":"wk-form4_1767058062.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/709283/000070928325000099/wk-form4_1767058062.xml","form_type":"4"}},{"id":960376,"issuer":{"id":4987,"kind":"organization","name":"QUANTUM CORP /DE/","symbol":"QMCO"},"owners":[{"id":40740,"kind":"organization","name":"Dialectic Technology SPV LLC","position":1,"cik":"0002055322","reported_name":"Dialectic Technology SPV LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Convertible Notes","published_at":"2025-12-24T02:42:29.000Z","date":"2025-12-18","kind":"other","planned":false,"acquired":true,"reported_value":54718114,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"On December 18, 2025 (the \"Closing Date\"), the Issuer issued senior secured convertible notes (the \"Convertible Notes\") in the aggregate principal amount of $54,718,114 to Dialectic Technology SPV LLC (\"Dialectic\"). The Convertible Notes mature December 18, 2028 (the \"Maturity Date\") and have an interest rate of 10.00% per annum, payable in kind, compounded annually. The initial conversion price of the Convertible Notes equals $10.00 per share (the \"Conversion Price\") of Common Stock, subject to adjustment, and includes antidilution protections in favor of Dialectic as set forth in the Convertible Notes. The Conversion Price is subject to adjustment on the last day of the three calendar quarters immediately following the Closing Date (each, a \"Reset Price Date\") to the greater of (a) $4.00 per share and (b) the lesser of (i) the then Conversion Price and (ii) the 30-day daily VWAP of the Common Stock immediately preceding the Reset Price Date."},{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"Based on the Conversion Price as of the Closing Date, the Convertible Notes were convertible into 5,471,811 shares of Common Stock. At the Issuer's option, all outstanding principal amount, accrued and unpaid interest and premium, if any, of any Convertible Notes outstanding on the Maturity Date will be exchanged into shares of Common Stock at an exchange price equal to 80% of the market price as set forth in the Convertible Notes. Following the six-month anniversary of Closing Date, if certain conditions are met, the Issuer may elect to require the exchange of a portion of the total outstanding amount of any Convertible Notes into shares of Common Stock at the then outstanding Conversion Price."},{"field":"reported_value","element":"transactionTotalValue","label":"F1","text":"On December 18, 2025 (the \"Closing Date\"), the Issuer issued senior secured convertible notes (the \"Convertible Notes\") in the aggregate principal amount of $54,718,114 to Dialectic Technology SPV LLC (\"Dialectic\"). The Convertible Notes mature December 18, 2028 (the \"Maturity Date\") and have an interest rate of 10.00% per annum, payable in kind, compounded annually. The initial conversion price of the Convertible Notes equals $10.00 per share (the \"Conversion Price\") of Common Stock, subject to adjustment, and includes antidilution protections in favor of Dialectic as set forth in the Convertible Notes. The Conversion Price is subject to adjustment on the last day of the three calendar quarters immediately following the Closing Date (each, a \"Reset Price Date\") to the greater of (a) $4.00 per share and (b) the lesser of (i) the then Conversion Price and (ii) the 30-day daily VWAP of the Common Stock immediately preceding the Reset Price Date."},{"field":"reported_value","element":"transactionTotalValue","label":"F2","text":"Based on the Conversion Price as of the Closing Date, the Convertible Notes were convertible into 5,471,811 shares of Common Stock. At the Issuer's option, all outstanding principal amount, accrued and unpaid interest and premium, if any, of any Convertible Notes outstanding on the Maturity Date will be exchanged into shares of Common Stock at an exchange price equal to 80% of the market price as set forth in the Convertible Notes. Following the six-month anniversary of Closing Date, if certain conditions are met, the Issuer may elect to require the exchange of a portion of the total outstanding amount of any Convertible Notes into shares of Common Stock at the then outstanding Conversion Price."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"On December 18, 2025 (the \"Closing Date\"), the Issuer issued senior secured convertible notes (the \"Convertible Notes\") in the aggregate principal amount of $54,718,114 to Dialectic Technology SPV LLC (\"Dialectic\"). The Convertible Notes mature December 18, 2028 (the \"Maturity Date\") and have an interest rate of 10.00% per annum, payable in kind, compounded annually. The initial conversion price of the Convertible Notes equals $10.00 per share (the \"Conversion Price\") of Common Stock, subject to adjustment, and includes antidilution protections in favor of Dialectic as set forth in the Convertible Notes. The Conversion Price is subject to adjustment on the last day of the three calendar quarters immediately following the Closing Date (each, a \"Reset Price Date\") to the greater of (a) $4.00 per share and (b) the lesser of (i) the then Conversion Price and (ii) the 30-day daily VWAP of the Common Stock immediately preceding the Reset Price Date."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Based on the Conversion Price as of the Closing Date, the Convertible Notes were convertible into 5,471,811 shares of Common Stock. At the Issuer's option, all outstanding principal amount, accrued and unpaid interest and premium, if any, of any Convertible Notes outstanding on the Maturity Date will be exchanged into shares of Common Stock at an exchange price equal to 80% of the market price as set forth in the Convertible Notes. Following the six-month anniversary of Closing Date, if certain conditions are met, the Issuer may elect to require the exchange of a portion of the total outstanding amount of any Convertible Notes into shares of Common Stock at the then outstanding Conversion Price."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"On December 18, 2025 (the \"Closing Date\"), the Issuer issued senior secured convertible notes (the \"Convertible Notes\") in the aggregate principal amount of $54,718,114 to Dialectic Technology SPV LLC (\"Dialectic\"). The Convertible Notes mature December 18, 2028 (the \"Maturity Date\") and have an interest rate of 10.00% per annum, payable in kind, compounded annually. The initial conversion price of the Convertible Notes equals $10.00 per share (the \"Conversion Price\") of Common Stock, subject to adjustment, and includes antidilution protections in favor of Dialectic as set forth in the Convertible Notes. The Conversion Price is subject to adjustment on the last day of the three calendar quarters immediately following the Closing Date (each, a \"Reset Price Date\") to the greater of (a) $4.00 per share and (b) the lesser of (i) the then Conversion Price and (ii) the 30-day daily VWAP of the Common Stock immediately preceding the Reset Price Date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"Based on the Conversion Price as of the Closing Date, the Convertible Notes were convertible into 5,471,811 shares of Common Stock. At the Issuer's option, all outstanding principal amount, accrued and unpaid interest and premium, if any, of any Convertible Notes outstanding on the Maturity Date will be exchanged into shares of Common Stock at an exchange price equal to 80% of the market price as set forth in the Convertible Notes. Following the six-month anniversary of Closing Date, if certain conditions are met, the Issuer may elect to require the exchange of a portion of the total outstanding amount of any Convertible Notes into shares of Common Stock at the then outstanding Conversion Price."},{"field":"derivative.underlying_shares","element":"underlyingSecurityShares","label":"F1","text":"On December 18, 2025 (the \"Closing Date\"), the Issuer issued senior secured convertible notes (the \"Convertible Notes\") in the aggregate principal amount of $54,718,114 to Dialectic Technology SPV LLC (\"Dialectic\"). The Convertible Notes mature December 18, 2028 (the \"Maturity Date\") and have an interest rate of 10.00% per annum, payable in kind, compounded annually. The initial conversion price of the Convertible Notes equals $10.00 per share (the \"Conversion Price\") of Common Stock, subject to adjustment, and includes antidilution protections in favor of Dialectic as set forth in the Convertible Notes. The Conversion Price is subject to adjustment on the last day of the three calendar quarters immediately following the Closing Date (each, a \"Reset Price Date\") to the greater of (a) $4.00 per share and (b) the lesser of (i) the then Conversion Price and (ii) the 30-day daily VWAP of the Common Stock immediately preceding the Reset Price Date."},{"field":"derivative.underlying_shares","element":"underlyingSecurityShares","label":"F2","text":"Based on the Conversion Price as of the Closing Date, the Convertible Notes were convertible into 5,471,811 shares of Common Stock. At the Issuer's option, all outstanding principal amount, accrued and unpaid interest and premium, if any, of any Convertible Notes outstanding on the Maturity Date will be exchanged into shares of Common Stock at an exchange price equal to 80% of the market price as set forth in the Convertible Notes. Following the six-month anniversary of Closing Date, if certain conditions are met, the Issuer may elect to require the exchange of a portion of the total outstanding amount of any Convertible Notes into shares of Common Stock at the then outstanding Conversion Price."},{"field":"valueOwnedAfter","element":"valueOwnedFollowingTransaction","label":"F1","text":"On December 18, 2025 (the \"Closing Date\"), the Issuer issued senior secured convertible notes (the \"Convertible Notes\") in the aggregate principal amount of $54,718,114 to Dialectic Technology SPV LLC (\"Dialectic\"). The Convertible Notes mature December 18, 2028 (the \"Maturity Date\") and have an interest rate of 10.00% per annum, payable in kind, compounded annually. The initial conversion price of the Convertible Notes equals $10.00 per share (the \"Conversion Price\") of Common Stock, subject to adjustment, and includes antidilution protections in favor of Dialectic as set forth in the Convertible Notes. The Conversion Price is subject to adjustment on the last day of the three calendar quarters immediately following the Closing Date (each, a \"Reset Price Date\") to the greater of (a) $4.00 per share and (b) the lesser of (i) the then Conversion Price and (ii) the 30-day daily VWAP of the Common Stock immediately preceding the Reset Price Date."},{"field":"valueOwnedAfter","element":"valueOwnedFollowingTransaction","label":"F2","text":"Based on the Conversion Price as of the Closing Date, the Convertible Notes were convertible into 5,471,811 shares of Common Stock. At the Issuer's option, all outstanding principal amount, accrued and unpaid interest and premium, if any, of any Convertible Notes outstanding on the Maturity Date will be exchanged into shares of Common Stock at an exchange price equal to 80% of the market price as set forth in the Convertible Notes. Following the six-month anniversary of Closing Date, if certain conditions are met, the Issuer may elect to require the exchange of a portion of the total outstanding amount of any Convertible Notes into shares of Common Stock at the then outstanding Conversion Price."}],"derivative":{"exercise_date":"2025-12-18","underlying":"Common Stock"},"source":{"system":"sec-edgar","filing":"0000947871-25-001091","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/709283/000094787125001091/ownership.xml","form_type":"4"}},{"id":1009001,"issuer":{"id":4987,"kind":"organization","name":"QUANTUM CORP /DE/","symbol":"QMCO"},"owners":[{"id":70516,"kind":"person","name":"Blevins Tony J","position":1,"cik":"0002085976","reported_name":"Blevins Tony J","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-11-05T00:16:17.000Z","date":"2025-11-01","kind":"grant","planned":false,"acquired":true,"shares":1000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Grant of restricted stock units (RSUs), each of which represents a contingent right to receive one share of common stock of QMCO. The RSUs vest in full on the earlier of November 1, 2026 or the date of the Company's next annual stockholder meeting, subject to continued service on the Company's Board of Directors."}],"balance_after":1000,"source":{"system":"sec-edgar","filing":"0002085976-25-000005","document":"wk-form4_1762301774.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/709283/000208597625000005/wk-form4_1762301774.xml","form_type":"4"}},{"id":1009000,"issuer":{"id":4987,"kind":"organization","name":"QUANTUM CORP /DE/","symbol":"QMCO"},"owners":[{"id":70517,"kind":"person","name":"Clancy James C","position":1,"cik":"0002085977","reported_name":"Clancy James C","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-11-05T00:10:06.000Z","date":"2025-11-01","kind":"grant","planned":false,"acquired":true,"shares":1000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Grant of restricted stock units (RSUs), each of which represents a contingent right to receive one share of common stock of QMCO. 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The reporting person paid the exercise price for each of these warrants on a cashless basis, resulting in Quantum Corporation withholding an aggregate of 228,195 of the warrant shares to pay the exercise price and issuing to the reporting person the remaining 449,710 shares."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"(Continued from footnote 1)  The securities are held by certain funds and accounts for which the reporting person serves as investment manager, advisor or sub-advisor, including (i) OC II FIE V LP, which holds 289,620 shares of Common Stock and (ii) OC III LVS XL LP, which holds 672,507 shares of Common Stock.  The reporting person disclaims beneficial ownership in the reported securities, except to the extent of its pecuniary interest therein."}],"balance_after":0,"derivative":{"exercise_price":61.52,"exercise_date":"2024-08-13","expiration_date":"2034-08-13","underlying":"Common Stock","underlying_shares":224059},"source":{"system":"sec-edgar","filing":"0000950170-25-003094","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":18,"url":"https://www.sec.gov/Archives/edgar/data/709283/000095017025003094/ownership.xml","form_type":"4"}},{"id":1309268,"issuer":{"id":4987,"kind":"organization","name":"QUANTUM CORP /DE/","symbol":"QMCO"},"owners":[{"id":80234,"kind":"person","name":"PACIFIC INVESTMENT MANAGEMENT CO LLC","position":1,"cik":"0001163368","reported_name":"PACIFIC INVESTMENT MANAGEMENT CO LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Warrants (right to buy)","published_at":"2025-01-07T23:14:09.000Z","date":"2025-01-03","kind":"other","planned":false,"acquired":false,"shares":18750,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"On January 3, 2025, the reporting person exercised (a) a warrant to purchase 114,155 shares of Quantum Corporation's common stock, par value $0.01 per share (the \"Common Stock\"), for $54.20 a share, (b) a warrant to purchase 219,970 shares of Common Stock for $26.00 a share, (c) a warrant to purchase 63,435 shares of Common Stock for $6.20 a share, (d) a warrant to purchase 37,536 shares of Common Stock for $6.20 a share, (e) a warrant to purchase 18,750 shares of Common Stock for $6.20 a share, and (f) a warrant to purchase 224,059 shares of Common Stock for $6.20 a share.  The reporting person paid the exercise price for each of these warrants on a cashless basis, resulting in Quantum Corporation withholding an aggregate of 228,195 of the warrant shares to pay the exercise price and issuing to the reporting person the remaining 449,710 shares."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"(Continued from footnote 1)  The securities are held by certain funds and accounts for which the reporting person serves as investment manager, advisor or sub-advisor, including (i) OC II FIE V LP, which holds 289,620 shares of Common Stock and (ii) OC III LVS XL LP, which holds 672,507 shares of Common Stock.  The reporting person disclaims beneficial ownership in the reported securities, except to the extent of its pecuniary interest therein."}],"balance_after":0,"derivative":{"exercise_price":61.52,"exercise_date":"2024-07-11","expiration_date":"2034-07-11","underlying":"Common Stock","underlying_shares":18750},"source":{"system":"sec-edgar","filing":"0000950170-25-003094","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":17,"url":"https://www.sec.gov/Archives/edgar/data/709283/000095017025003094/ownership.xml","form_type":"4"}},{"id":1309267,"issuer":{"id":4987,"kind":"organization","name":"QUANTUM CORP /DE/","symbol":"QMCO"},"owners":[{"id":80234,"kind":"person","name":"PACIFIC INVESTMENT MANAGEMENT CO LLC","position":1,"cik":"0001163368","reported_name":"PACIFIC INVESTMENT MANAGEMENT CO LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Warrants (right to buy)","published_at":"2025-01-07T23:14:09.000Z","date":"2025-01-03","kind":"other","planned":false,"acquired":false,"shares":37536,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"On January 3, 2025, the reporting person exercised (a) a warrant to purchase 114,155 shares of Quantum Corporation's common stock, par value $0.01 per share (the \"Common Stock\"), for $54.20 a share, (b) a warrant to purchase 219,970 shares of Common Stock for $26.00 a share, (c) a warrant to purchase 63,435 shares of Common Stock for $6.20 a share, (d) a warrant to purchase 37,536 shares of Common Stock for $6.20 a share, (e) a warrant to purchase 18,750 shares of Common Stock for $6.20 a share, and (f) a warrant to purchase 224,059 shares of Common Stock for $6.20 a share.  The reporting person paid the exercise price for each of these warrants on a cashless basis, resulting in Quantum Corporation withholding an aggregate of 228,195 of the warrant shares to pay the exercise price and issuing to the reporting person the remaining 449,710 shares."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"(Continued from footnote 1)  The securities are held by certain funds and accounts for which the reporting person serves as investment manager, advisor or sub-advisor, including (i) OC II FIE V LP, which holds 289,620 shares of Common Stock and (ii) OC III LVS XL LP, which holds 672,507 shares of Common Stock.  The reporting person disclaims beneficial ownership in the reported securities, except to the extent of its pecuniary interest therein."}],"balance_after":0,"derivative":{"exercise_price":61.52,"exercise_date":"2024-05-24","expiration_date":"2034-05-24","underlying":"Common Stock","underlying_shares":37536},"source":{"system":"sec-edgar","filing":"0000950170-25-003094","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":16,"url":"https://www.sec.gov/Archives/edgar/data/709283/000095017025003094/ownership.xml","form_type":"4"}},{"id":1309266,"issuer":{"id":4987,"kind":"organization","name":"QUANTUM CORP /DE/","symbol":"QMCO"},"owners":[{"id":80234,"kind":"person","name":"PACIFIC INVESTMENT MANAGEMENT CO LLC","position":1,"cik":"0001163368","reported_name":"PACIFIC INVESTMENT MANAGEMENT CO LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Warrants (right to buy)","published_at":"2025-01-07T23:14:09.000Z","date":"2025-01-03","kind":"other","planned":false,"acquired":false,"shares":63435,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"On January 3, 2025, the reporting person exercised (a) a warrant to purchase 114,155 shares of Quantum Corporation's common stock, par value $0.01 per share (the \"Common Stock\"), for $54.20 a share, (b) a warrant to purchase 219,970 shares of Common Stock for $26.00 a share, (c) a warrant to purchase 63,435 shares of Common Stock for $6.20 a share, (d) a warrant to purchase 37,536 shares of Common Stock for $6.20 a share, (e) a warrant to purchase 18,750 shares of Common Stock for $6.20 a share, and (f) a warrant to purchase 224,059 shares of Common Stock for $6.20 a share.  The reporting person paid the exercise price for each of these warrants on a cashless basis, resulting in Quantum Corporation withholding an aggregate of 228,195 of the warrant shares to pay the exercise price and issuing to the reporting person the remaining 449,710 shares."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"(Continued from footnote 1)  The securities are held by certain funds and accounts for which the reporting person serves as investment manager, advisor or sub-advisor, including (i) OC II FIE V LP, which holds 289,620 shares of Common Stock and (ii) OC III LVS XL LP, which holds 672,507 shares of Common Stock.  The reporting person disclaims beneficial ownership in the reported securities, except to the extent of its pecuniary interest therein."}],"balance_after":0,"derivative":{"exercise_price":61.52,"exercise_date":"2023-06-01","expiration_date":"2033-06-01","underlying":"Common Stock","underlying_shares":63435},"source":{"system":"sec-edgar","filing":"0000950170-25-003094","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":15,"url":"https://www.sec.gov/Archives/edgar/data/709283/000095017025003094/ownership.xml","form_type":"4"}},{"id":1309265,"issuer":{"id":4987,"kind":"organization","name":"QUANTUM CORP /DE/","symbol":"QMCO"},"owners":[{"id":80234,"kind":"person","name":"PACIFIC INVESTMENT MANAGEMENT CO LLC","position":1,"cik":"0001163368","reported_name":"PACIFIC INVESTMENT MANAGEMENT CO LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Warrants (right to buy)","published_at":"2025-01-07T23:14:09.000Z","date":"2025-01-03","kind":"other","planned":false,"acquired":false,"shares":219970,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"On January 3, 2025, the reporting person exercised (a) a warrant to purchase 114,155 shares of Quantum Corporation's common stock, par value $0.01 per share (the \"Common Stock\"), for $54.20 a share, (b) a warrant to purchase 219,970 shares of Common Stock for $26.00 a share, (c) a warrant to purchase 63,435 shares of Common Stock for $6.20 a share, (d) a warrant to purchase 37,536 shares of Common Stock for $6.20 a share, (e) a warrant to purchase 18,750 shares of Common Stock for $6.20 a share, and (f) a warrant to purchase 224,059 shares of Common Stock for $6.20 a share.  The reporting person paid the exercise price for each of these warrants on a cashless basis, resulting in Quantum Corporation withholding an aggregate of 228,195 of the warrant shares to pay the exercise price and issuing to the reporting person the remaining 449,710 shares."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"(Continued from footnote 1)  The securities are held by certain funds and accounts for which the reporting person serves as investment manager, advisor or sub-advisor, including (i) OC II FIE V LP, which holds 289,620 shares of Common Stock and (ii) OC III LVS XL LP, which holds 672,507 shares of Common Stock.  The reporting person disclaims beneficial ownership in the reported securities, except to the extent of its pecuniary interest therein."}],"balance_after":0,"derivative":{"exercise_price":61.52,"exercise_date":"2018-12-27","expiration_date":"2028-12-27","underlying":"Common Stock","underlying_shares":219970},"source":{"system":"sec-edgar","filing":"0000950170-25-003094","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":14,"url":"https://www.sec.gov/Archives/edgar/data/709283/000095017025003094/ownership.xml","form_type":"4"}},{"id":1309264,"issuer":{"id":4987,"kind":"organization","name":"QUANTUM CORP /DE/","symbol":"QMCO"},"owners":[{"id":80234,"kind":"person","name":"PACIFIC INVESTMENT MANAGEMENT CO LLC","position":1,"cik":"0001163368","reported_name":"PACIFIC INVESTMENT MANAGEMENT CO LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Warrants (right to buy)","published_at":"2025-01-07T23:14:09.000Z","date":"2025-01-03","kind":"other","planned":false,"acquired":false,"shares":114155,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"On January 3, 2025, the reporting person exercised (a) a warrant to purchase 114,155 shares of Quantum Corporation's common stock, par value $0.01 per share (the \"Common Stock\"), for $54.20 a share, (b) a warrant to purchase 219,970 shares of Common Stock for $26.00 a share, (c) a warrant to purchase 63,435 shares of Common Stock for $6.20 a share, (d) a warrant to purchase 37,536 shares of Common Stock for $6.20 a share, (e) a warrant to purchase 18,750 shares of Common Stock for $6.20 a share, and (f) a warrant to purchase 224,059 shares of Common Stock for $6.20 a share.  The reporting person paid the exercise price for each of these warrants on a cashless basis, resulting in Quantum Corporation withholding an aggregate of 228,195 of the warrant shares to pay the exercise price and issuing to the reporting person the remaining 449,710 shares."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"(Continued from footnote 1)  The securities are held by certain funds and accounts for which the reporting person serves as investment manager, advisor or sub-advisor, including (i) OC II FIE V LP, which holds 289,620 shares of Common Stock and (ii) OC III LVS XL LP, which holds 672,507 shares of Common Stock.  The reporting person disclaims beneficial ownership in the reported securities, except to the extent of its pecuniary interest therein."}],"balance_after":0,"derivative":{"exercise_price":61.52,"exercise_date":"2020-06-16","expiration_date":"2030-06-16","underlying":"Common Stock","underlying_shares":114155},"source":{"system":"sec-edgar","filing":"0000950170-25-003094","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":13,"url":"https://www.sec.gov/Archives/edgar/data/709283/000095017025003094/ownership.xml","form_type":"4"}},{"id":1309263,"issuer":{"id":4987,"kind":"organization","name":"QUANTUM CORP /DE/","symbol":"QMCO"},"owners":[{"id":80234,"kind":"person","name":"PACIFIC INVESTMENT MANAGEMENT CO LLC","position":1,"cik":"0001163368","reported_name":"PACIFIC INVESTMENT MANAGEMENT CO LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2025-01-07T23:14:09.000Z","date":"2025-01-03","kind":"sale","planned":false,"acquired":false,"shares":22582,"price":61.52,"value":1389244.64,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"On January 3, 2025, the reporting person exercised (a) a warrant to purchase 114,155 shares of Quantum Corporation's common stock, par value $0.01 per share (the \"Common Stock\"), for $54.20 a share, (b) a warrant to purchase 219,970 shares of Common Stock for $26.00 a share, (c) a warrant to purchase 63,435 shares of Common Stock for $6.20 a share, (d) a warrant to purchase 37,536 shares of Common Stock for $6.20 a share, (e) a warrant to purchase 18,750 shares of Common Stock for $6.20 a share, and (f) a warrant to purchase 224,059 shares of Common Stock for $6.20 a share.  The reporting person paid the exercise price for each of these warrants on a cashless basis, resulting in Quantum Corporation withholding an aggregate of 228,195 of the warrant shares to pay the exercise price and issuing to the reporting person the remaining 449,710 shares."},{"field":"kind","element":"transactionCoding","label":"F2","text":"(Continued from footnote 1)  The securities are held by certain funds and accounts for which the reporting person serves as investment manager, advisor or sub-advisor, including (i) OC II FIE V LP, which holds 289,620 shares of Common Stock and (ii) OC III LVS XL LP, which holds 672,507 shares of Common Stock.  The reporting person disclaims beneficial ownership in the reported securities, except to the extent of its pecuniary interest therein."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"On January 3, 2025, the reporting person exercised (a) a warrant to purchase 114,155 shares of Quantum Corporation's common stock, par value $0.01 per share (the \"Common Stock\"), for $54.20 a share, (b) a warrant to purchase 219,970 shares of Common Stock for $26.00 a share, (c) a warrant to purchase 63,435 shares of Common Stock for $6.20 a share, (d) a warrant to purchase 37,536 shares of Common Stock for $6.20 a share, (e) a warrant to purchase 18,750 shares of Common Stock for $6.20 a share, and (f) a warrant to purchase 224,059 shares of Common Stock for $6.20 a share.  The reporting person paid the exercise price for each of these warrants on a cashless basis, resulting in Quantum Corporation withholding an aggregate of 228,195 of the warrant shares to pay the exercise price and issuing to the reporting person the remaining 449,710 shares."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"(Continued from footnote 1)  The securities are held by certain funds and accounts for which the reporting person serves as investment manager, advisor or sub-advisor, including (i) OC II FIE V LP, which holds 289,620 shares of Common Stock and (ii) OC III LVS XL LP, which holds 672,507 shares of Common Stock.  The reporting person disclaims beneficial ownership in the reported securities, except to the extent of its pecuniary interest therein."}],"balance_after":962127,"source":{"system":"sec-edgar","filing":"0000950170-25-003094","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":12,"url":"https://www.sec.gov/Archives/edgar/data/709283/000095017025003094/ownership.xml","form_type":"4"}},{"id":1309262,"issuer":{"id":4987,"kind":"organization","name":"QUANTUM CORP /DE/","symbol":"QMCO"},"owners":[{"id":80234,"kind":"person","name":"PACIFIC INVESTMENT MANAGEMENT CO LLC","position":1,"cik":"0001163368","reported_name":"PACIFIC INVESTMENT MANAGEMENT CO LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2025-01-07T23:14:09.000Z","date":"2025-01-03","kind":"other","planned":false,"acquired":true,"shares":224059,"price":6.2,"value":1389165.8,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"On January 3, 2025, the reporting person exercised (a) a warrant to purchase 114,155 shares of Quantum Corporation's common stock, par value $0.01 per share (the \"Common Stock\"), for $54.20 a share, (b) a warrant to purchase 219,970 shares of Common Stock for $26.00 a share, (c) a warrant to purchase 63,435 shares of Common Stock for $6.20 a share, (d) a warrant to purchase 37,536 shares of Common Stock for $6.20 a share, (e) a warrant to purchase 18,750 shares of Common Stock for $6.20 a share, and (f) a warrant to purchase 224,059 shares of Common Stock for $6.20 a share.  The reporting person paid the exercise price for each of these warrants on a cashless basis, resulting in Quantum Corporation withholding an aggregate of 228,195 of the warrant shares to pay the exercise price and issuing to the reporting person the remaining 449,710 shares."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"(Continued from footnote 1)  The securities are held by certain funds and accounts for which the reporting person serves as investment manager, advisor or sub-advisor, including (i) OC II FIE V LP, which holds 289,620 shares of Common Stock and (ii) OC III LVS XL LP, which holds 672,507 shares of Common Stock.  The reporting person disclaims beneficial ownership in the reported securities, except to the extent of its pecuniary interest therein."}],"balance_after":984709,"source":{"system":"sec-edgar","filing":"0000950170-25-003094","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":11,"url":"https://www.sec.gov/Archives/edgar/data/709283/000095017025003094/ownership.xml","form_type":"4"}},{"id":1309261,"issuer":{"id":4987,"kind":"organization","name":"QUANTUM CORP /DE/","symbol":"QMCO"},"owners":[{"id":80234,"kind":"person","name":"PACIFIC INVESTMENT MANAGEMENT CO LLC","position":1,"cik":"0001163368","reported_name":"PACIFIC INVESTMENT MANAGEMENT CO LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2025-01-07T23:14:09.000Z","date":"2025-01-03","kind":"sale","planned":false,"acquired":false,"shares":1889,"price":61.52,"value":116211.28,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"On January 3, 2025, the reporting person exercised (a) a warrant to purchase 114,155 shares of Quantum Corporation's common stock, par value $0.01 per share (the \"Common Stock\"), for $54.20 a share, (b) a warrant to purchase 219,970 shares of Common Stock for $26.00 a share, (c) a warrant to purchase 63,435 shares of Common Stock for $6.20 a share, (d) a warrant to purchase 37,536 shares of Common Stock for $6.20 a share, (e) a warrant to purchase 18,750 shares of Common Stock for $6.20 a share, and (f) a warrant to purchase 224,059 shares of Common Stock for $6.20 a share.  The reporting person paid the exercise price for each of these warrants on a cashless basis, resulting in Quantum Corporation withholding an aggregate of 228,195 of the warrant shares to pay the exercise price and issuing to the reporting person the remaining 449,710 shares."},{"field":"kind","element":"transactionCoding","label":"F2","text":"(Continued from footnote 1)  The securities are held by certain funds and accounts for which the reporting person serves as investment manager, advisor or sub-advisor, including (i) OC II FIE V LP, which holds 289,620 shares of Common Stock and (ii) OC III LVS XL LP, which holds 672,507 shares of Common Stock.  The reporting person disclaims beneficial ownership in the reported securities, except to the extent of its pecuniary interest therein."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"On January 3, 2025, the reporting person exercised (a) a warrant to purchase 114,155 shares of Quantum Corporation's common stock, par value $0.01 per share (the \"Common Stock\"), for $54.20 a share, (b) a warrant to purchase 219,970 shares of Common Stock for $26.00 a share, (c) a warrant to purchase 63,435 shares of Common Stock for $6.20 a share, (d) a warrant to purchase 37,536 shares of Common Stock for $6.20 a share, (e) a warrant to purchase 18,750 shares of Common Stock for $6.20 a share, and (f) a warrant to purchase 224,059 shares of Common Stock for $6.20 a share.  The reporting person paid the exercise price for each of these warrants on a cashless basis, resulting in Quantum Corporation withholding an aggregate of 228,195 of the warrant shares to pay the exercise price and issuing to the reporting person the remaining 449,710 shares."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"(Continued from footnote 1)  The securities are held by certain funds and accounts for which the reporting person serves as investment manager, advisor or sub-advisor, including (i) OC II FIE V LP, which holds 289,620 shares of Common Stock and (ii) OC III LVS XL LP, which holds 672,507 shares of Common Stock.  The reporting person disclaims beneficial ownership in the reported securities, except to the extent of its pecuniary interest therein."}],"balance_after":760650,"source":{"system":"sec-edgar","filing":"0000950170-25-003094","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":10,"url":"https://www.sec.gov/Archives/edgar/data/709283/000095017025003094/ownership.xml","form_type":"4"}},{"id":1309260,"issuer":{"id":4987,"kind":"organization","name":"QUANTUM CORP /DE/","symbol":"QMCO"},"owners":[{"id":80234,"kind":"person","name":"PACIFIC INVESTMENT MANAGEMENT CO LLC","position":1,"cik":"0001163368","reported_name":"PACIFIC INVESTMENT MANAGEMENT CO LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2025-01-07T23:14:09.000Z","date":"2025-01-03","kind":"other","planned":false,"acquired":true,"shares":18750,"price":6.2,"value":116250.0,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"On January 3, 2025, the reporting person exercised (a) a warrant to purchase 114,155 shares of Quantum Corporation's common stock, par value $0.01 per share (the \"Common Stock\"), for $54.20 a share, (b) a warrant to purchase 219,970 shares of Common Stock for $26.00 a share, (c) a warrant to purchase 63,435 shares of Common Stock for $6.20 a share, (d) a warrant to purchase 37,536 shares of Common Stock for $6.20 a share, (e) a warrant to purchase 18,750 shares of Common Stock for $6.20 a share, and (f) a warrant to purchase 224,059 shares of Common Stock for $6.20 a share.  The reporting person paid the exercise price for each of these warrants on a cashless basis, resulting in Quantum Corporation withholding an aggregate of 228,195 of the warrant shares to pay the exercise price and issuing to the reporting person the remaining 449,710 shares."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"(Continued from footnote 1)  The securities are held by certain funds and accounts for which the reporting person serves as investment manager, advisor or sub-advisor, including (i) OC II FIE V LP, which holds 289,620 shares of Common Stock and (ii) OC III LVS XL LP, which holds 672,507 shares of Common Stock.  The reporting person disclaims beneficial ownership in the reported securities, except to the extent of its pecuniary interest therein."}],"balance_after":762539,"source":{"system":"sec-edgar","filing":"0000950170-25-003094","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":9,"url":"https://www.sec.gov/Archives/edgar/data/709283/000095017025003094/ownership.xml","form_type":"4"}},{"id":1309259,"issuer":{"id":4987,"kind":"organization","name":"QUANTUM CORP /DE/","symbol":"QMCO"},"owners":[{"id":80234,"kind":"person","name":"PACIFIC INVESTMENT MANAGEMENT CO LLC","position":1,"cik":"0001163368","reported_name":"PACIFIC INVESTMENT MANAGEMENT CO LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2025-01-07T23:14:09.000Z","date":"2025-01-03","kind":"sale","planned":false,"acquired":false,"shares":3783,"price":61.52,"value":232730.16,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"On January 3, 2025, the reporting person exercised (a) a warrant to purchase 114,155 shares of Quantum Corporation's common stock, par value $0.01 per share (the \"Common Stock\"), for $54.20 a share, (b) a warrant to purchase 219,970 shares of Common Stock for $26.00 a share, (c) a warrant to purchase 63,435 shares of Common Stock for $6.20 a share, (d) a warrant to purchase 37,536 shares of Common Stock for $6.20 a share, (e) a warrant to purchase 18,750 shares of Common Stock for $6.20 a share, and (f) a warrant to purchase 224,059 shares of Common Stock for $6.20 a share.  The reporting person paid the exercise price for each of these warrants on a cashless basis, resulting in Quantum Corporation withholding an aggregate of 228,195 of the warrant shares to pay the exercise price and issuing to the reporting person the remaining 449,710 shares."},{"field":"kind","element":"transactionCoding","label":"F2","text":"(Continued from footnote 1)  The securities are held by certain funds and accounts for which the reporting person serves as investment manager, advisor or sub-advisor, including (i) OC II FIE V LP, which holds 289,620 shares of Common Stock and (ii) OC III LVS XL LP, which holds 672,507 shares of Common Stock.  The reporting person disclaims beneficial ownership in the reported securities, except to the extent of its pecuniary interest therein."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"On January 3, 2025, the reporting person exercised (a) a warrant to purchase 114,155 shares of Quantum Corporation's common stock, par value $0.01 per share (the \"Common Stock\"), for $54.20 a share, (b) a warrant to purchase 219,970 shares of Common Stock for $26.00 a share, (c) a warrant to purchase 63,435 shares of Common Stock for $6.20 a share, (d) a warrant to purchase 37,536 shares of Common Stock for $6.20 a share, (e) a warrant to purchase 18,750 shares of Common Stock for $6.20 a share, and (f) a warrant to purchase 224,059 shares of Common Stock for $6.20 a share.  The reporting person paid the exercise price for each of these warrants on a cashless basis, resulting in Quantum Corporation withholding an aggregate of 228,195 of the warrant shares to pay the exercise price and issuing to the reporting person the remaining 449,710 shares."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"(Continued from footnote 1)  The securities are held by certain funds and accounts for which the reporting person serves as investment manager, advisor or sub-advisor, including (i) OC II FIE V LP, which holds 289,620 shares of Common Stock and (ii) OC III LVS XL LP, which holds 672,507 shares of Common Stock.  The reporting person disclaims beneficial ownership in the reported securities, except to the extent of its pecuniary interest therein."}],"balance_after":743789,"source":{"system":"sec-edgar","filing":"0000950170-25-003094","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/709283/000095017025003094/ownership.xml","form_type":"4"}},{"id":1309258,"issuer":{"id":4987,"kind":"organization","name":"QUANTUM CORP /DE/","symbol":"QMCO"},"owners":[{"id":80234,"kind":"person","name":"PACIFIC INVESTMENT MANAGEMENT CO LLC","position":1,"cik":"0001163368","reported_name":"PACIFIC INVESTMENT MANAGEMENT CO LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2025-01-07T23:14:09.000Z","date":"2025-01-03","kind":"other","planned":false,"acquired":true,"shares":37536,"price":6.2,"value":232723.2,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"On January 3, 2025, the reporting person exercised (a) a warrant to purchase 114,155 shares of Quantum Corporation's common stock, par value $0.01 per share (the \"Common Stock\"), for $54.20 a share, (b) a warrant to purchase 219,970 shares of Common Stock for $26.00 a share, (c) a warrant to purchase 63,435 shares of Common Stock for $6.20 a share, (d) a warrant to purchase 37,536 shares of Common Stock for $6.20 a share, (e) a warrant to purchase 18,750 shares of Common Stock for $6.20 a share, and (f) a warrant to purchase 224,059 shares of Common Stock for $6.20 a share.  The reporting person paid the exercise price for each of these warrants on a cashless basis, resulting in Quantum Corporation withholding an aggregate of 228,195 of the warrant shares to pay the exercise price and issuing to the reporting person the remaining 449,710 shares."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"(Continued from footnote 1)  The securities are held by certain funds and accounts for which the reporting person serves as investment manager, advisor or sub-advisor, including (i) OC II FIE V LP, which holds 289,620 shares of Common Stock and (ii) OC III LVS XL LP, which holds 672,507 shares of Common Stock.  The reporting person disclaims beneficial ownership in the reported securities, except to the extent of its pecuniary interest therein."}],"balance_after":747572,"source":{"system":"sec-edgar","filing":"0000950170-25-003094","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/709283/000095017025003094/ownership.xml","form_type":"4"}},{"id":1309257,"issuer":{"id":4987,"kind":"organization","name":"QUANTUM CORP /DE/","symbol":"QMCO"},"owners":[{"id":80234,"kind":"person","name":"PACIFIC INVESTMENT MANAGEMENT CO LLC","position":1,"cik":"0001163368","reported_name":"PACIFIC INVESTMENT MANAGEMENT CO LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2025-01-07T23:14:09.000Z","date":"2025-01-03","kind":"sale","planned":false,"acquired":false,"shares":6393,"price":61.52,"value":393297.36,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"On January 3, 2025, the reporting person exercised (a) a warrant to purchase 114,155 shares of Quantum Corporation's common stock, par value $0.01 per share (the \"Common Stock\"), for $54.20 a share, (b) a warrant to purchase 219,970 shares of Common Stock for $26.00 a share, (c) a warrant to purchase 63,435 shares of Common Stock for $6.20 a share, (d) a warrant to purchase 37,536 shares of Common Stock for $6.20 a share, (e) a warrant to purchase 18,750 shares of Common Stock for $6.20 a share, and (f) a warrant to purchase 224,059 shares of Common Stock for $6.20 a share.  The reporting person paid the exercise price for each of these warrants on a cashless basis, resulting in Quantum Corporation withholding an aggregate of 228,195 of the warrant shares to pay the exercise price and issuing to the reporting person the remaining 449,710 shares."},{"field":"kind","element":"transactionCoding","label":"F2","text":"(Continued from footnote 1)  The securities are held by certain funds and accounts for which the reporting person serves as investment manager, advisor or sub-advisor, including (i) OC II FIE V LP, which holds 289,620 shares of Common Stock and (ii) OC III LVS XL LP, which holds 672,507 shares of Common Stock.  The reporting person disclaims beneficial ownership in the reported securities, except to the extent of its pecuniary interest therein."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"On January 3, 2025, the reporting person exercised (a) a warrant to purchase 114,155 shares of Quantum Corporation's common stock, par value $0.01 per share (the \"Common Stock\"), for $54.20 a share, (b) a warrant to purchase 219,970 shares of Common Stock for $26.00 a share, (c) a warrant to purchase 63,435 shares of Common Stock for $6.20 a share, (d) a warrant to purchase 37,536 shares of Common Stock for $6.20 a share, (e) a warrant to purchase 18,750 shares of Common Stock for $6.20 a share, and (f) a warrant to purchase 224,059 shares of Common Stock for $6.20 a share.  The reporting person paid the exercise price for each of these warrants on a cashless basis, resulting in Quantum Corporation withholding an aggregate of 228,195 of the warrant shares to pay the exercise price and issuing to the reporting person the remaining 449,710 shares."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"(Continued from footnote 1)  The securities are held by certain funds and accounts for which the reporting person serves as investment manager, advisor or sub-advisor, including (i) OC II FIE V LP, which holds 289,620 shares of Common Stock and (ii) OC III LVS XL LP, which holds 672,507 shares of Common Stock.  The reporting person disclaims beneficial ownership in the reported securities, except to the extent of its pecuniary interest therein."}],"balance_after":710036,"source":{"system":"sec-edgar","filing":"0000950170-25-003094","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/709283/000095017025003094/ownership.xml","form_type":"4"}},{"id":1309256,"issuer":{"id":4987,"kind":"organization","name":"QUANTUM CORP /DE/","symbol":"QMCO"},"owners":[{"id":80234,"kind":"person","name":"PACIFIC INVESTMENT MANAGEMENT CO LLC","position":1,"cik":"0001163368","reported_name":"PACIFIC INVESTMENT MANAGEMENT CO LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2025-01-07T23:14:09.000Z","date":"2025-01-03","kind":"other","planned":false,"acquired":true,"shares":63435,"price":6.2,"value":393297.0,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"On January 3, 2025, the reporting person exercised (a) a warrant to purchase 114,155 shares of Quantum Corporation's common stock, par value $0.01 per share (the \"Common Stock\"), for $54.20 a share, (b) a warrant to purchase 219,970 shares of Common Stock for $26.00 a share, (c) a warrant to purchase 63,435 shares of Common Stock for $6.20 a share, (d) a warrant to purchase 37,536 shares of Common Stock for $6.20 a share, (e) a warrant to purchase 18,750 shares of Common Stock for $6.20 a share, and (f) a warrant to purchase 224,059 shares of Common Stock for $6.20 a share.  The reporting person paid the exercise price for each of these warrants on a cashless basis, resulting in Quantum Corporation withholding an aggregate of 228,195 of the warrant shares to pay the exercise price and issuing to the reporting person the remaining 449,710 shares."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"(Continued from footnote 1)  The securities are held by certain funds and accounts for which the reporting person serves as investment manager, advisor or sub-advisor, including (i) OC II FIE V LP, which holds 289,620 shares of Common Stock and (ii) OC III LVS XL LP, which holds 672,507 shares of Common Stock.  The reporting person disclaims beneficial ownership in the reported securities, except to the extent of its pecuniary interest therein."}],"balance_after":716429,"source":{"system":"sec-edgar","filing":"0000950170-25-003094","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/709283/000095017025003094/ownership.xml","form_type":"4"}},{"id":1309255,"issuer":{"id":4987,"kind":"organization","name":"QUANTUM CORP /DE/","symbol":"QMCO"},"owners":[{"id":80234,"kind":"person","name":"PACIFIC INVESTMENT MANAGEMENT CO LLC","position":1,"cik":"0001163368","reported_name":"PACIFIC INVESTMENT MANAGEMENT CO LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2025-01-07T23:14:09.000Z","date":"2025-01-03","kind":"sale","planned":false,"acquired":false,"shares":92970,"price":61.52,"value":5719514.4,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"On January 3, 2025, the reporting person exercised (a) a warrant to purchase 114,155 shares of Quantum Corporation's common stock, par value $0.01 per share (the \"Common Stock\"), for $54.20 a share, (b) a warrant to purchase 219,970 shares of Common Stock for $26.00 a share, (c) a warrant to purchase 63,435 shares of Common Stock for $6.20 a share, (d) a warrant to purchase 37,536 shares of Common Stock for $6.20 a share, (e) a warrant to purchase 18,750 shares of Common Stock for $6.20 a share, and (f) a warrant to purchase 224,059 shares of Common Stock for $6.20 a share.  The reporting person paid the exercise price for each of these warrants on a cashless basis, resulting in Quantum Corporation withholding an aggregate of 228,195 of the warrant shares to pay the exercise price and issuing to the reporting person the remaining 449,710 shares."},{"field":"kind","element":"transactionCoding","label":"F2","text":"(Continued from footnote 1)  The securities are held by certain funds and accounts for which the reporting person serves as investment manager, advisor or sub-advisor, including (i) OC II FIE V LP, which holds 289,620 shares of Common Stock and (ii) OC III LVS XL LP, which holds 672,507 shares of Common Stock.  The reporting person disclaims beneficial ownership in the reported securities, except to the extent of its pecuniary interest therein."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"On January 3, 2025, the reporting person exercised (a) a warrant to purchase 114,155 shares of Quantum Corporation's common stock, par value $0.01 per share (the \"Common Stock\"), for $54.20 a share, (b) a warrant to purchase 219,970 shares of Common Stock for $26.00 a share, (c) a warrant to purchase 63,435 shares of Common Stock for $6.20 a share, (d) a warrant to purchase 37,536 shares of Common Stock for $6.20 a share, (e) a warrant to purchase 18,750 shares of Common Stock for $6.20 a share, and (f) a warrant to purchase 224,059 shares of Common Stock for $6.20 a share.  The reporting person paid the exercise price for each of these warrants on a cashless basis, resulting in Quantum Corporation withholding an aggregate of 228,195 of the warrant shares to pay the exercise price and issuing to the reporting person the remaining 449,710 shares."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"(Continued from footnote 1)  The securities are held by certain funds and accounts for which the reporting person serves as investment manager, advisor or sub-advisor, including (i) OC II FIE V LP, which holds 289,620 shares of Common Stock and (ii) OC III LVS XL LP, which holds 672,507 shares of Common Stock.  The reporting person disclaims beneficial ownership in the reported securities, except to the extent of its pecuniary interest therein."}],"balance_after":652994,"source":{"system":"sec-edgar","filing":"0000950170-25-003094","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/709283/000095017025003094/ownership.xml","form_type":"4"}},{"id":1309254,"issuer":{"id":4987,"kind":"organization","name":"QUANTUM CORP /DE/","symbol":"QMCO"},"owners":[{"id":80234,"kind":"person","name":"PACIFIC INVESTMENT MANAGEMENT CO LLC","position":1,"cik":"0001163368","reported_name":"PACIFIC INVESTMENT MANAGEMENT CO LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2025-01-07T23:14:09.000Z","date":"2025-01-03","kind":"other","planned":false,"acquired":true,"shares":219970,"price":26,"value":5719220.0,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"On January 3, 2025, the reporting person exercised (a) a warrant to purchase 114,155 shares of Quantum Corporation's common stock, par value $0.01 per share (the \"Common Stock\"), for $54.20 a share, (b) a warrant to purchase 219,970 shares of Common Stock for $26.00 a share, (c) a warrant to purchase 63,435 shares of Common Stock for $6.20 a share, (d) a warrant to purchase 37,536 shares of Common Stock for $6.20 a share, (e) a warrant to purchase 18,750 shares of Common Stock for $6.20 a share, and (f) a warrant to purchase 224,059 shares of Common Stock for $6.20 a share.  The reporting person paid the exercise price for each of these warrants on a cashless basis, resulting in Quantum Corporation withholding an aggregate of 228,195 of the warrant shares to pay the exercise price and issuing to the reporting person the remaining 449,710 shares."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"(Continued from footnote 1)  The securities are held by certain funds and accounts for which the reporting person serves as investment manager, advisor or sub-advisor, including (i) OC II FIE V LP, which holds 289,620 shares of Common Stock and (ii) OC III LVS XL LP, which holds 672,507 shares of Common Stock.  The reporting person disclaims beneficial ownership in the reported securities, except to the extent of its pecuniary interest therein."}],"balance_after":745964,"source":{"system":"sec-edgar","filing":"0000950170-25-003094","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/709283/000095017025003094/ownership.xml","form_type":"4"}},{"id":1309253,"issuer":{"id":4987,"kind":"organization","name":"QUANTUM CORP /DE/","symbol":"QMCO"},"owners":[{"id":80234,"kind":"person","name":"PACIFIC INVESTMENT MANAGEMENT CO LLC","position":1,"cik":"0001163368","reported_name":"PACIFIC INVESTMENT MANAGEMENT CO LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2025-01-07T23:14:09.000Z","date":"2025-01-03","kind":"sale","planned":false,"acquired":false,"shares":100578,"price":61.52,"value":6187558.56,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"On January 3, 2025, the reporting person exercised (a) a warrant to purchase 114,155 shares of Quantum Corporation's common stock, par value $0.01 per share (the \"Common Stock\"), for $54.20 a share, (b) a warrant to purchase 219,970 shares of Common Stock for $26.00 a share, (c) a warrant to purchase 63,435 shares of Common Stock for $6.20 a share, (d) a warrant to purchase 37,536 shares of Common Stock for $6.20 a share, (e) a warrant to purchase 18,750 shares of Common Stock for $6.20 a share, and (f) a warrant to purchase 224,059 shares of Common Stock for $6.20 a share.  The reporting person paid the exercise price for each of these warrants on a cashless basis, resulting in Quantum Corporation withholding an aggregate of 228,195 of the warrant shares to pay the exercise price and issuing to the reporting person the remaining 449,710 shares."},{"field":"kind","element":"transactionCoding","label":"F2","text":"(Continued from footnote 1)  The securities are held by certain funds and accounts for which the reporting person serves as investment manager, advisor or sub-advisor, including (i) OC II FIE V LP, which holds 289,620 shares of Common Stock and (ii) OC III LVS XL LP, which holds 672,507 shares of Common Stock.  The reporting person disclaims beneficial ownership in the reported securities, except to the extent of its pecuniary interest therein."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"On January 3, 2025, the reporting person exercised (a) a warrant to purchase 114,155 shares of Quantum Corporation's common stock, par value $0.01 per share (the \"Common Stock\"), for $54.20 a share, (b) a warrant to purchase 219,970 shares of Common Stock for $26.00 a share, (c) a warrant to purchase 63,435 shares of Common Stock for $6.20 a share, (d) a warrant to purchase 37,536 shares of Common Stock for $6.20 a share, (e) a warrant to purchase 18,750 shares of Common Stock for $6.20 a share, and (f) a warrant to purchase 224,059 shares of Common Stock for $6.20 a share.  The reporting person paid the exercise price for each of these warrants on a cashless basis, resulting in Quantum Corporation withholding an aggregate of 228,195 of the warrant shares to pay the exercise price and issuing to the reporting person the remaining 449,710 shares."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"(Continued from footnote 1)  The securities are held by certain funds and accounts for which the reporting person serves as investment manager, advisor or sub-advisor, including (i) OC II FIE V LP, which holds 289,620 shares of Common Stock and (ii) OC III LVS XL LP, which holds 672,507 shares of Common Stock.  The reporting person disclaims beneficial ownership in the reported securities, except to the extent of its pecuniary interest therein."}],"balance_after":525994,"source":{"system":"sec-edgar","filing":"0000950170-25-003094","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/709283/000095017025003094/ownership.xml","form_type":"4"}},{"id":1309252,"issuer":{"id":4987,"kind":"organization","name":"QUANTUM CORP /DE/","symbol":"QMCO"},"owners":[{"id":80234,"kind":"person","name":"PACIFIC INVESTMENT MANAGEMENT CO LLC","position":1,"cik":"0001163368","reported_name":"PACIFIC INVESTMENT MANAGEMENT CO LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2025-01-07T23:14:09.000Z","date":"2025-01-03","kind":"other","planned":false,"acquired":true,"shares":114155,"price":54.2,"value":6187201.0,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"On January 3, 2025, the reporting person exercised (a) a warrant to purchase 114,155 shares of Quantum Corporation's common stock, par value $0.01 per share (the \"Common Stock\"), for $54.20 a share, (b) a warrant to purchase 219,970 shares of Common Stock for $26.00 a share, (c) a warrant to purchase 63,435 shares of Common Stock for $6.20 a share, (d) a warrant to purchase 37,536 shares of Common Stock for $6.20 a share, (e) a warrant to purchase 18,750 shares of Common Stock for $6.20 a share, and (f) a warrant to purchase 224,059 shares of Common Stock for $6.20 a share.  The reporting person paid the exercise price for each of these warrants on a cashless basis, resulting in Quantum Corporation withholding an aggregate of 228,195 of the warrant shares to pay the exercise price and issuing to the reporting person the remaining 449,710 shares."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"(Continued from footnote 1)  The securities are held by certain funds and accounts for which the reporting person serves as investment manager, advisor or sub-advisor, including (i) OC II FIE V LP, which holds 289,620 shares of Common Stock and (ii) OC III LVS XL LP, which holds 672,507 shares of Common Stock.  The reporting person disclaims beneficial ownership in the reported securities, except to the extent of its pecuniary interest therein."}],"balance_after":626572,"source":{"system":"sec-edgar","filing":"0000950170-25-003094","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/709283/000095017025003094/ownership.xml","form_type":"4"}},{"id":1342148,"issuer":{"id":4987,"kind":"organization","name":"QUANTUM CORP /DE/","symbol":"QMCO"},"owners":[{"id":21666,"kind":"person","name":"Gianella Kenneth P.","position":1,"cik":"0001677143","reported_name":"Gianella Kenneth P.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common 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shares automatically sold on a non-discretionary basis, to cover tax withholding obligations in connection with the vesting of restricted stock units granted on October 1, 2021 and July 1, 2022."}],"balance_after":107491,"source":{"system":"sec-edgar","filing":"0000709283-24-000048","document":"wk-form4_1733433298.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/709283/000070928324000048/wk-form4_1733433298.xml","form_type":"4"}},{"id":1342145,"issuer":{"id":4987,"kind":"organization","name":"QUANTUM CORP /DE/","symbol":"QMCO"},"owners":[{"id":31876,"kind":"person","name":"Nash Laura A.","position":1,"cik":"0001979364","reported_name":"Nash Laura A.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Accounting Officer"}}],"security":"Common 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Vesting is subject to continued employment with QMCO through the service vesting date, which occurs in three equal annual installments on October 1, 2025, October 1, 2026 and October 1, 2027. Delayed filing arose from an error related to effecting the reverse stock split within QMCOs stock plan administration platform and the resulting delay of the distribution of the equity award agreement to reporting person.  Reporting person has elected to continue to use the grant date for the reported transaction date notwithstanding the delayed distribution of the equity award agreement."}],"balance_after":1923658,"source":{"system":"sec-edgar","filing":"0000709283-24-000033","document":"wk-form4_1729545448.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/709283/000070928324000033/wk-form4_1729545448.xml","form_type":"4"}},{"id":1383800,"issuer":{"id":4987,"kind":"organization","name":"QUANTUM CORP /DE/","symbol":"QMCO"},"owners":[{"id":21666,"kind":"person","name":"Gianella Kenneth P.","position":1,"cik":"0001677143","reported_name":"Gianella Kenneth P.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2024-10-21T21:17:24.000Z","date":"2024-10-01","kind":"grant","planned":false,"acquired":true,"shares":17750,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Grant of Restricted Stock Units (RSUs), each of which represents a contingent right to receive one share of common stock of QMCO. Vesting is subject to continued employment with QMCO through the service vesting date, which occurs in three equal annual installments on October 1, 2025, October 1, 2026 and October 1, 2027. Delayed filing arose from an error related to effecting the reverse stock split within QMCOs stock plan administration platform and the resulting delay of the distribution of the equity award agreement to reporting person.  Reporting person has elected to continue to use the grant date for the reported transaction date notwithstanding the delayed distribution of the equity award agreement."}],"balance_after":392750,"source":{"system":"sec-edgar","filing":"0000709283-24-000032","document":"wk-form4_1729545438.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/709283/000070928324000032/wk-form4_1729545438.xml","form_type":"4"}},{"id":1383799,"issuer":{"id":4987,"kind":"organization","name":"QUANTUM CORP /DE/","symbol":"QMCO"},"owners":[{"id":84077,"kind":"person","name":"Spanjaard Henk Jan","position":1,"cik":"0002000334","reported_name":"Spanjaard Henk Jan","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Revenue Officer"}}],"security":"Common Stock","published_at":"2024-10-21T21:17:14.000Z","date":"2024-10-01","kind":"grant","planned":false,"acquired":true,"shares":10000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"(1)\tGrant of Restricted Stock Units (RSUs), each of which represents a contingent right to receive one share of common stock of QMCO. Vesting is subject to continued employment with QMCO through the service vesting date, which occurs in three equal annual installments on October 1, 2025, October 1, 2026 and October 1, 2027. Delayed filing arose from an error related to effecting the reverse stock split within QMCOs stock plan administration platform and the resulting delay of the distribution of the equity award agreement to reporting person.  Reporting person has elected to continue to use the grant date for the reported transaction date notwithstanding the delayed distribution of the equity award agreement."}],"balance_after":131112,"source":{"system":"sec-edgar","filing":"0000709283-24-000031","document":"wk-form4_1729545426.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/709283/000070928324000031/wk-form4_1729545426.xml","form_type":"4"}},{"id":1383798,"issuer":{"id":4987,"kind":"organization","name":"QUANTUM CORP /DE/","symbol":"QMCO"},"owners":[{"id":80595,"kind":"person","name":"Cabrera Brian E","position":1,"cik":"0001314901","reported_name":"Cabrera Brian E","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP Chief Admin Ofcr & Secy"}}],"security":"Common Stock","published_at":"2024-10-21T21:17:03.000Z","date":"2024-10-01","kind":"grant","planned":false,"acquired":true,"shares":13750,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"(1)\tGrant of Restricted Stock Units (RSUs), each of which represents a contingent right to receive one share of common stock of QMCO. 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The RSUs vest in full on the earlier of October 1, 2025 or the date of the\nCompany's next annual stockholder meeting, subject to continued service on the Company's Board of Directors, Delayed filing arose from an error related to effecting the reverse stock split within QMCOs stock plan administration platform and the resulting delay of the distribution of the equity award agreement to reporting person.  Reporting person has elected to continue to use the grant date for the reported transaction date notwithstanding the delayed distribution of the equity award agreement."}],"balance_after":97498,"source":{"system":"sec-edgar","filing":"0000709283-24-000029","document":"wk-form4_1729545403.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/709283/000070928324000029/wk-form4_1729545403.xml","form_type":"4"}},{"id":1383796,"issuer":{"id":4987,"kind":"organization","name":"QUANTUM CORP /DE/","symbol":"QMCO"},"owners":[{"id":70515,"kind":"person","name":"Jaworksi Don","position":1,"cik":"0001947510","reported_name":"Jaworksi Don","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2024-10-21T21:16:52.000Z","date":"2024-10-01","kind":"grant","planned":false,"acquired":true,"shares":12000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Grant of fully vested Restricted Stock Units (RSUs), each of which represents a right to receive one share of common stock of QMCO."}],"balance_after":85498,"source":{"system":"sec-edgar","filing":"0000709283-24-000029","document":"wk-form4_1729545403.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/709283/000070928324000029/wk-form4_1729545403.xml","form_type":"4"}},{"id":1383795,"issuer":{"id":4987,"kind":"organization","name":"QUANTUM CORP /DE/","symbol":"QMCO"},"owners":[{"id":70518,"kind":"person","name":"White Yue Zhou","position":1,"cik":"0001875944","reported_name":"White Yue Zhou","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2024-10-21T21:16:40.000Z","date":"2024-10-01","kind":"grant","planned":false,"acquired":true,"shares":12000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Grant of RSUs, each of which represents a contingent right to receive one share of common stock of QMCO. 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Reporting person has elected to continue to use the grant date for the reported transaction date notwithstanding the delayed distribution of the equity award agreement."}],"balance_after":126766,"source":{"system":"sec-edgar","filing":"0000709283-24-000028","document":"wk-form4_1729545394.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/709283/000070928324000028/wk-form4_1729545394.xml","form_type":"4"}},{"id":1383794,"issuer":{"id":4987,"kind":"organization","name":"QUANTUM CORP /DE/","symbol":"QMCO"},"owners":[{"id":70518,"kind":"person","name":"White Yue Zhou","position":1,"cik":"0001875944","reported_name":"White Yue Zhou","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2024-10-21T21:16:40.000Z","date":"2024-10-01","kind":"grant","planned":false,"acquired":true,"shares":12000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Grant of fully vested Restricted Stock Units (RSUs), each of which represents a right to receive one share of common stock of QMCO."}],"balance_after":114766,"source":{"system":"sec-edgar","filing":"0000709283-24-000028","document":"wk-form4_1729545394.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/709283/000070928324000028/wk-form4_1729545394.xml","form_type":"4"}},{"id":1383793,"issuer":{"id":4987,"kind":"organization","name":"QUANTUM CORP /DE/","symbol":"QMCO"},"owners":[{"id":31877,"kind":"person","name":"Meyrath Hugues","position":1,"cik":"0001419111","reported_name":"Meyrath Hugues","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2024-10-21T21:16:30.000Z","date":"2024-10-01","kind":"grant","planned":false,"acquired":true,"shares":12000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Grant of RSUs, each of which represents a contingent right to receive one share of common stock of QMCO. 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