Reported relationships
Latest disclosed role at each company.
| Company | Last reported as | Report date | Published |
|---|---|---|---|
| QUANTUM CORP /DE/QMCO · Entity 4987 | Director · President & CEO | October 01, 2026 | October 05, 2026 |
Disclosed balances
About these balances
Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.
QUANTUM CORP /DE/
Report date October 01, 2026 · Filed October 05, 2026
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Employee Stock Option (right to buy)SEC Table II · derivative / convertible security · Conversion / exercise price $31.89 · Expires 2033-10-01 | Direct | 500,000 |
Reported balance
After 2026-10-01 transaction · row 1
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 1 · 2026-10-01 · Grant · Acquired 500,000 · Balance 500,000 F1: This nonstatutory stock option vests over four years in equal monthly installments beginning on November 1, 2026, with a vesting commencement date of October 1, 2026, subject to the Reporting Persons continued service through each vesting date. |
Filing footnotes · ownership attribution and instrument terms
F1: This nonstatutory stock option vests over four years in equal monthly installments beginning on November 1, 2026, with a vesting commencement date of October 1, 2026, subject to the Reporting Persons continued service through each vesting date.
Transaction history
JSON APIPurchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”
The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.
| Transaction date | Company | Activity / security | Shares / units | Reported price | Reported value | Details |
|---|---|---|---|---|---|---|
| October 01, 2026 Filed Oct 5, 2026 21:02 UTC | QUANTUM CORP /DE/ QMCO · Entity 4987 | GrantEmployee Stock Option (right to buy) · Derivative | 500,000 | $0.00 Strike: $31.89 | $0.00 |
DisclosureSEC source: 0001628280-26-065025 · wk-form4_1791234156.xml · derivative · entry 1 Meyrath Hugues · CIK 0001419111 · Director · President & CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 500,000 Underlying: Common Stock · 500,000 shares Expires 2033-10-01 F1 · derivative.exercise_date: This nonstatutory stock option vests over four years in equal monthly installments beginning on November 1, 2026, with a vesting commencement date of October 1, 2026, subject to the Reporting Persons continued service through each vesting date. Read SEC document |
| July 02, 2026 Filed Jul 7, 2026 20:07 UTC | QUANTUM CORP /DE/ QMCO · Entity 4987 | SaleCommon Stock | 6,232 | $10.51 | $65,498.32 |
DisclosureSEC source: 0001628280-26-047487 · wk-form4_1783454856.xml · nonDerivative · entry 1 Meyrath Hugues · CIK 0001419111 · Director · President & CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 118,468 F1 · shares: 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 on 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 certain 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. F2 · price: 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 $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 the number of shares sold and the prices at which the transactions were executed. Read SEC document |
| April 01, 2026 Filed Apr 3, 2026 20:15 UTC | QUANTUM CORP /DE/ QMCO · Entity 4987 | GrantEmployee Stock Option (right to buy) · Derivative | 850,000 | $0.00 Strike: $5.03 | $0.00 |
DisclosureSEC source: 0001193125-26-142179 · ownership.xml · derivative · entry 1 Meyrath Hugues · CIK 0001419111 · Director · President & CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 850,000 Underlying: Common Stock · 850,000 shares Expires 2033-04-01 F1 · shares: This nonstatutory stock option vests over four years in equal monthly installments beginning on April 1, 2026, subject to the Reporting Person's continued service through each vesting date. F1 · derivative.exercise_date: This nonstatutory stock option vests over four years in equal monthly installments beginning on April 1, 2026, subject to the Reporting Person's continued service through each vesting date. Read SEC document |
| January 01, 2026 Filed Jan 6, 2026 00:28 UTC | QUANTUM CORP /DE/ QMCO · Entity 4987 | GrantEmployee Stock Option (right to buy) · Derivative | 50,000 | $0.00 Strike: $6.45 | $0.00 |
DisclosureSEC source: 0001628280-26-000750 · wk-form4_1767659314.xml · derivative · entry 2 Meyrath Hugues · CIK 0001419111 · Director · President & CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 50,000 Underlying: Common Stock · 50,000 shares Expires 2033-01-01 F2 · shares: This nonstatutory stock option vests in four equal annual installments beginning on July 1, 2026, with a vesting commencement date of July 1, 2025, subject to the Reporting Person's continued service through each vesting date. F2 · derivative.exercise_date: This nonstatutory stock option vests in four equal annual installments beginning on July 1, 2026, with a vesting commencement date of July 1, 2025, subject to the Reporting Person's continued service through each vesting date. Read SEC document |
| January 01, 2026 Filed Jan 6, 2026 00:28 UTC | QUANTUM CORP /DE/ QMCO · Entity 4987 | GrantCommon Stock | 62,500 | $0.00 | $0.00 |
DisclosureSEC source: 0001628280-26-000750 · wk-form4_1767659314.xml · nonDerivative · entry 1 Meyrath Hugues · CIK 0001419111 · Director · President & CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 124,700 F1 · shares: 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 four equal annual installments beginning on July 1, 2026, with a vesting commencement date of July 1, 2025, subject to the Reporting Person's continued service through each vesting date. Read SEC document |
| November 01, 2025 Filed Nov 5, 2025 00:00 UTC | QUANTUM CORP /DE/ QMCO · Entity 4987 | GrantEmployee Stock Option (right to buy) · Derivative | 50,000 | $0.00 Strike: $9.44 | $0.00 |
DisclosureSEC source: 0001419111-25-000003 · wk-form4_1762300800.xml · derivative · entry 2 Meyrath Hugues · CIK 0001419111 · Director · President & CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 50,000 Underlying: Common Stock · 50,000 shares Expires 2032-11-01 F2 · shares: This nonstatutory stock option vests in four equal annual installments beginning on July 1, 2026, with a vesting commencement date of July 1, 2025, subject to the Reporting Person's continued service through each vesting date. F2 · derivative.exercise_date: This nonstatutory stock option vests in four equal annual installments beginning on July 1, 2026, with a vesting commencement date of July 1, 2025, subject to the Reporting Person's continued service through each vesting date. Read SEC document |
| November 01, 2025 Filed Nov 5, 2025 00:00 UTC | QUANTUM CORP /DE/ QMCO · Entity 4987 | GrantCommon Stock | 37,500 | $0.00 | $0.00 |
DisclosureSEC source: 0001419111-25-000003 · wk-form4_1762300800.xml · nonDerivative · entry 1 Meyrath Hugues · CIK 0001419111 · Director · President & CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 62,200 F1 · shares: 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 four equal annual installments beginning on July 1, 2026, with a vesting commencement date of July 1, 2025, subject to the Reporting Person's continued service through each vesting date. Read SEC document |
| October 02, 2025 Filed Oct 3, 2025 21:22 UTC | QUANTUM CORP /DE/ QMCO · Entity 4987 | SaleCommon Stock | 2,975 | $10.86 | $32,308.50 |
DisclosureSEC source: 0001628280-25-044169 · wk-form4_1759526523.xml · nonDerivative · entry 1 Meyrath Hugues · CIK 0001419111 · Director · President & CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 24,700 F1 · shares: 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 on October 1, 2024. F2 · price: Represents a weighted average price. These shares were sold as part of block trades for multiple security holders of the issuer on October 2, 2025, at a price ranging from $10.85 to $10.87. 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 the number of shares sold and the prices at which the transactions were executed. Read SEC document |
| October 01, 2024 Filed Oct 21, 2024 21:16 UTC | QUANTUM CORP /DE/ QMCO · Entity 4987 | GrantCommon Stock | 12,000 | $0.00 | $0.00 |
DisclosureSEC source: 0000709283-24-000027 · wk-form4_1729545382.xml · nonDerivative · entry 2 Meyrath Hugues · CIK 0001419111 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 97,498 F2 · shares: Grant of 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 October 1, 2025 or the date of the Company'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. Read SEC document |
| October 01, 2024 Filed Oct 21, 2024 21:16 UTC | QUANTUM CORP /DE/ QMCO · Entity 4987 | GrantCommon Stock | 12,000 | $0.00 | $0.00 |
DisclosureSEC source: 0000709283-24-000027 · wk-form4_1729545382.xml · nonDerivative · entry 1 Meyrath Hugues · CIK 0001419111 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 85,498 F1 · shares: Grant of fully vested Restricted Stock Units (RSUs), each of which represents a right to receive one share of common stock of QMCO. Read SEC document |
| November 09, 2022 Filed Nov 28, 2022 23:09 UTC | QUANTUM CORP /DE/ QMCO · Entity 4987 | GrantCommon Stock | 73,498 | $0.00 | $0.00 |
DisclosureSEC source: 0000709283-22-000054 · wf-form4_166967696257249.xml · nonDerivative · entry 1 Meyrath Hugues · CIK 0001419111 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 73,498 F1 · shares: Grant of Restricted Stock Units ("RSUs"), each of which represents a contingent right to receive one share of common stock of QMCO (the "Company"). The RSUs vest in full on the date of the Company's next annual stockholder meeting, subject to continued service on the Company's Board of Directors. Read SEC document |
Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.