QMCO insider transaction filings
QUANTUM CORP /DE/ — 50 most recent Form 4 filings from SEC EDGAR, normalized by FilingPulse. Latest filing: 2026-08-05. Screen QMCO transaction legs live →
Insider transaction summary — last 90 days
2026-06-24 to 2026-09-22, from the filings listed below: 3 Form 4 filings. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): none reported.
- Open-market sales (code S, non-derivative): 3 legs across 3 filings by 3 insiders — 7,970 shares, $84,087 total (shares × price as filed).
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 0.
- Largest priced transaction: sale of 6,232 shares @ $10.51 ($65,498) by Meyrath Hugues, filed 2026-07-07.
By insider — same window
Open-market purchase/sale legs on non-derivative securities, grouped by the filing's reporting owner(s); joint filings appear once. Dollar totals cover priced legs only (shares × price as filed). Ordered by priced transaction value, largest first.
| Insider | Filings | Purchases (P) | Sales (S) | Other legs |
|---|---|---|---|---|
| Meyrath Hugues — President & CEO, Director | 1 | — | 1 leg · 6,232 sh · $65,498 | — |
| Craythorne Anthony — Chief Revenue Officer | 1 | — | 1 leg · 1,478 sh · $15,856 | — |
| Nash Laura A. — Chief Accounting Officer | 1 | — | 1 leg · 260 sh · $2,733 | — |
Recent Form 4 filings — QUANTUM CORP /DE/
| Filed | Form | Insider | Reported transactions | Source |
|---|---|---|---|---|
| 2026-08-05 | 4 | Craythorne Anthony — Chief Revenue Officer | Sale (S): 1,478 @ $10.73 | EDGAR |
| 2026-07-07 | 4 | Nash Laura A. — Chief Accounting Officer | Sale (S): 260 @ $10.51 | EDGAR |
| 2026-07-07 | 4 | Meyrath Hugues — President & CEO, Director | Sale (S): 6,232 @ $10.51 | EDGAR |
| 2026-06-08 | 4 | Dialectic Technology SPV LLC — 10% owner | Conversion (C): 11,020,645 @ $5.19 · Grant/award (A): 3,083,975 @ $5.19 · Other (J): 105,911 (derivative) · Conversion (C) | EDGAR |
| 2026-06-08 | 4 | FICHTHORN JOHN — Director, 10% owner | Conversion (C): 11,020,645 @ $5.19 · Grant/award (A): 3,083,975 @ $5.19 · Other (J): 105,911 (derivative) · Conversion (C): 57,241,228 (derivative) | EDGAR |
| 2026-04-03 | 4 | Craythorne Anthony — Chief Revenue Officer | Grant/award (A): 148,500 (derivative) @ $0 | EDGAR |
| 2026-04-03 | 4 | Nash Laura A. — Chief Accounting Officer | Sale (S): 109 @ $5.44 · Grant/award (A): 49,500 (derivative) @ $0 | EDGAR |
| 2026-04-03 | 4 | Meyrath Hugues — President & CEO, Director | Grant/award (A): 850,000 (derivative) @ $0 | EDGAR |
| 2026-03-04 | 4 | White William Hillis — Chief Financial Officer | Grant/award (A): 25,000 @ $0 | EDGAR |
| 2026-01-05 | 4 | Clancy James C — Director | Grant/award (A): 12,000 @ $0 | EDGAR |
| 2026-01-05 | 4 | Blevins Tony J — Director | Grant/award (A): 12,000 @ $0 | EDGAR |
| 2026-01-05 | 4 | Craythorne Anthony — Chief Revenue Officer | Grant/award (A): 15,000 @ $0 | EDGAR |
| 2026-01-05 | 4 | Tracy John R. — Director | Grant/award (A): 12,000 @ $0 | EDGAR |
| 2026-01-05 | 4 | Jaworksi Don — Director | Grant/award (A): 12,000 @ $0 | EDGAR |
| 2026-01-05 | 4 | White Yue Zhou — Director | Grant/award (A): 12,000 @ $0 | EDGAR |
| 2026-01-05 | 4 | Meyrath Hugues — President & CEO, Director | Grant/award (A): 62,500 @ $0 · Grant/award (A): 50,000 (derivative) @ $0 | EDGAR |
| 2026-01-05 | 4 | FICHTHORN JOHN — Director, 10% owner | Grant/award (A): 12,000 @ $0 | EDGAR |
| 2025-12-29 | 4 | FICHTHORN JOHN — Director, 10% owner | Other (J): 2,653,308 (derivative) · Other (J): 0 (derivative) | EDGAR |
| 2025-12-23 | 4 | Dialectic Technology SPV LLC — 10% owner | Other (J) | EDGAR |
| 2025-11-04 | 4 | Clancy James C — Director | Grant/award (A): 1,000 @ $0 | EDGAR |
| 2025-11-04 | 4 | Blevins Tony J — Director | Grant/award (A): 1,000 @ $0 | EDGAR |
| 2025-11-04 | 4 | Meyrath Hugues — President & CEO, Director | Grant/award (A): 37,500 @ $0 · Grant/award (A): 50,000 (derivative) @ $0 | EDGAR |
| 2025-10-03 | 4 | Nash Laura A. — Chief Accounting Officer | Grant/award (A): 500 @ $0 · Sale (S): 118 @ $9.91 · Sale (S): 611 @ $10.86 | EDGAR |
| 2025-10-03 | 4 | Meyrath Hugues — President & CEO, Director | Sale (S): 2,975 @ $10.86 | EDGAR |
| 2025-09-17 | 4 | Nash Laura A. — Chief Accounting Officer | Sale (S): 284 @ $7.40 | EDGAR |
| 2025-05-05 | 4 | FICHTHORN JOHN — Director | Grant/award (A): 4,405 @ $0 | EDGAR |
| 2025-04-23 | 4 | Lerner James J — President & CEO, Director | Grant/award (A): 5,828 @ $0 · Sale (S): 2,784 @ $9.65 | EDGAR |
| 2025-04-23 | 4 | Moorehead Lewis W. — Chief Accounting Officer | Grant/award (A): 333 @ $0 · Sale (S): 179 @ $9.65 | EDGAR |
| 2025-04-23 | 4 | Cabrera Brian E — SVP Chief Admin Ofcr & Secy | Grant/award (A): 1,874 @ $0 · Sale (S): 1,078 @ $9.65 | EDGAR |
| 2025-04-17 | 4 | PACIFIC INVESTMENT MANAGEMENT CO LLC — 10% owner | Sale (S): 962,127 @ $10.25 | EDGAR |
| 2025-04-04 | 4 | Nash Laura A. — Chief Accounting Officer | Sale (S): 136 @ $12.85 | EDGAR |
| 2025-02-05 | 4 | Gianella Kenneth P. — Chief Financial Officer | Sale (S): 1,279 @ $21.53 | EDGAR |
| 2025-01-17 | 4 | Spanjaard Henk Jan — Chief Revenue Officer | Sale (S): 935 @ $35.68 | EDGAR |
| 2025-01-17 | 4/A | Spanjaard Henk Jan — Chief Revenue Officer | Sale (S): 218 @ $4.43 | EDGAR |
| 2025-01-17 | 4/A | Nash Laura A. — Chief Accounting Officer | Sale (S): 328 @ $4.43 | EDGAR |
| 2025-01-17 | 4 | Gianella Kenneth P. — Chief Financial Officer | Sale (S): 1,487 @ $35.68 | EDGAR |
| 2025-01-17 | 4/A | Gianella Kenneth P. — Chief Financial Officer | Sale (S): 1,332 @ $4.43 | EDGAR |
| 2025-01-17 | 4 | Lerner James J — President & CEO, Director | Sale (S): 2,511 @ $35.68 | EDGAR |
| 2025-01-17 | 4/A | Lerner James J — President & CEO, Director | Sale (S): 3,681 @ $4.43 | EDGAR |
| 2025-01-17 | 4 | Cabrera Brian E — SVP Chief Admin Ofcr & Secy | Sale (S): 291 @ $4.45 · Sale (S): 1,996 @ $35.68 | EDGAR |
| 2025-01-17 | 4/A | Cabrera Brian E — SVP Chief Admin Ofcr & Secy | Sale (S): 2,118 @ $4.43 | EDGAR |
| 2025-01-07 | 4 | PACIFIC INVESTMENT MANAGEMENT CO LLC — 10% owner | Option exercise/expiry (X): 114,155 @ $54.20 · Sale (S): 100,578 @ $61.52 · Option exercise/expiry (X): 219,970 @ $26 · Sale (S): 92,970 @ $61.52 · Option exercise/expiry (X): 63,435 @ $6.20 · Sale (S): 6,393 @ $61.52 · +12 more | EDGAR |
| 2024-12-05 | 4 | Nash Laura A. — Chief Accounting Officer | Sale (S): 685 @ $4.43 | EDGAR |
| 2024-12-05 | 4 | Spanjaard Henk Jan — Chief Revenue Officer | Sale (S): 394 @ $4.43 | EDGAR |
| 2024-12-05 | 4 | Gianella Kenneth P. — Chief Financial Officer | Sale (S): 2,590 @ $4.43 | EDGAR |
| 2024-12-05 | 4 | Lerner James J — President & CEO, Director | Sale (S): 6,505 @ $4.43 | EDGAR |
| 2024-12-05 | 4 | Cabrera Brian E — SVP Chief Admin Ofcr & Secy | Sale (S): 5,387 @ $4.43 | EDGAR |
| 2024-11-19 | 4/A | Lerner James J — President & CEO, Director | Holdings only — no transactions reported | EDGAR |
| 2024-11-19 | 4/A | Meyrath Hugues — Director | Holdings only — no transactions reported | EDGAR |
| 2024-11-19 | 4/A | Cabrera Brian E — SVP Chief Admin Ofcr & Secy | Holdings only — no transactions reported | EDGAR |
Recent 8-K events — QUANTUM CORP /DE/
| Filed | Form | Items reported | Source |
|---|---|---|---|
| 2026-09-17 | 8-K | 5.07 — Submission of Matters to a Vote of Security Holders | EDGAR |
| 2026-09-01 | 8-K | 5.02 — Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers 8.01 — Other Events 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-08-14 | 8-K | 5.02 — Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers | EDGAR |
| 2026-08-10 | 8-K | 2.02 — Results of Operations and Financial Condition 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-06-25 | 8-K | 2.02 — Results of Operations and Financial Condition 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-06-05 | 8-K | 1.02 — Termination of a Material Definitive Agreement ? 8.01 — Other Events | EDGAR |
| 2026-06-02 | 8-K | 1.01 — Entry into a Material Definitive Agreement 2.02 — Results of Operations and Financial Condition 2.03 — Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant 3.02 — Unregistered Sales of Equity Securities 8.01 — Other Events 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-02-17 | 8-K | 2.02 — Results of Operations and Financial Condition 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-02-02 | 8-K | 5.02 — Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers 8.01 — Other Events 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-01-15 | 8-K | 2.02 — Results of Operations and Financial Condition 9.01 — Financial Statements and Exhibits | EDGAR |
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