In the last 12 months, insiders at QUANTUM CORP /DE/ ($QMCO) filed 107 transactions with the SEC: 0 open-market purchases totaling $0 and 42 sales totaling $24,658,685. Net insider sentiment: net selling.
QUANTUM CORP /DE/ operates in the Computer storage devices industry (Technology sector).
Most Active Insiders
- PACIFIC INVESTMENT MANAGEMENT CO LLC (Not found) — 22 transactions totaling $37,938,215
- Lerner James J (President & CEO) — 9 transactions totaling $353,051
- Cabrera Brian E (SVP Chief Admin Ofcr & Secy) — 12 transactions totaling $165,418
- Gianella Kenneth P. (Chief Financial Officer) — 10 transactions totaling $97,966
- Hurley John (Chief Revenue Officer) — 2 transactions totaling $50,678
View all SEC Filings for QUANTUM CORP /DE/ (QMCO).
Set Up your own filters →Recent Insider Transactions
| Transaction Date | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|
| April 2, 2026 | Nash Laura A. | Chief Accounting Officer | S | Common Stock | 109 | $5.44 | 11,030.0000 | 14,135,000 | 0.98% | 0.00% |
| April 1, 2026 | Nash Laura A. | Chief Accounting Officer | A | Employee Stock Option (right to buy) | 49500 | $0.00 | 49,500.0000 | 14,135,000 | 9999.99% | 0.35% |
| April 1, 2026 | Meyrath Hugues | President & CEO | A | Employee Stock Option (right to buy) | 850000 | $0.00 | 850,000.0000 | 14,135,000 | 9999.99% | 6.01% |
| April 1, 2026 | Craythorne Anthony | Chief Revenue Officer | A | Employee Stock Option (right to buy) | 148500 | $0.00 | 148,500.0000 | 14,135,000 | 9999.99% | 1.05% |
| March 4, 2026 | White William Hillis | Chief Financial Officer | A | Common Stock | 25000 | $0.00 | 25,000.0000 | 14,135,000 | 9999.99% | 0.18% |
| Jan. 1, 2026 | Jaworksi Don | Director | A | Common Stock | 12000 | $0.00 | 39,675.0000 | 14,135,000 | 43.36% | 0.08% |
| Jan. 1, 2026 | White Yue Zhou | Director | A | Common Stock | 12000 | $0.00 | 41,139.0000 | 14,135,000 | 41.18% | 0.08% |
| Jan. 1, 2026 | Meyrath Hugues | President & CEO | A | Employee Stock Option (right to buy) | 50000 | $0.00 | 50,000.0000 | 14,135,000 | 9999.99% | 0.35% |
| Jan. 1, 2026 | Meyrath Hugues | President & CEO | A | Common Stock | 62500 | $0.00 | 124,700.0000 | 14,135,000 | 100.48% | 0.44% |
| Jan. 1, 2026 | Craythorne Anthony | Chief Revenue Officer | A | Common Stock | 15000 | $0.00 | 15,000.0000 | 14,135,000 | 9999.99% | 0.11% |
| Jan. 1, 2026 | FICHTHORN JOHN | Director | A | Common Stock | 12000 | $0.00 | 27,271.0000 | 14,135,000 | 78.58% | 0.08% |
| Jan. 1, 2026 | Tracy John R. | Director | A | Common Stock | 12000 | $0.00 | 27,000.0000 | 14,135,000 | 80.00% | 0.08% |
| Jan. 1, 2026 | Blevins Tony J | Director | A | Common Stock | 12000 | $0.00 | 13,000.0000 | 14,135,000 | 1200.00% | 0.08% |
| Jan. 1, 2026 | Clancy James C | Director | A | Common Stock | 12000 | $0.00 | 13,000.0000 | 14,135,000 | 1200.00% | 0.08% |
| Dec. 18, 2025 | FICHTHORN JOHN | Director | J | Convertible Notes | 0 | $0.00 | 0.0000 | 13,333,000 | 0.00% | 0.00% |
| Sept. 23, 2025 | FICHTHORN JOHN | Director | J | Warrant (right to buy) | 2653308 | $0.00 | 2,653,308.0000 | 13,319,000 | 9999.99% | 19.92% |
| Dec. 18, 2025 | Dialectic Technology SPV LLC | TenPercentOwner | J | Convertible Notes | 54718114 | $0.00 | 54,718,114.0000 | 13,333,000 | 9999.99% | 100.00% |
| Nov. 1, 2025 | Blevins Tony J | Director | A | Common Stock | 1000 | $0.00 | 1,000.0000 | 13,333,000 | 9999.99% | 0.01% |
| Nov. 1, 2025 | Meyrath Hugues | President & CEO | A | Common Stock | 37500 | $0.00 | 62,200.0000 | 13,333,000 | 151.82% | 0.28% |
| Nov. 1, 2025 | Meyrath Hugues | President & CEO | A | Employee Stock Option (right to buy) | 50000 | $0.00 | 50,000.0000 | 13,333,000 | 9999.99% | 0.38% |
| Nov. 1, 2025 | Clancy James C | Director | A | Common Stock | 1000 | $0.00 | 1,000.0000 | 13,333,000 | 9999.99% | 0.01% |
| Oct. 2, 2025 | Nash Laura A. | Chief Accounting Officer | S | Common Stock | 611 | $10.86 | 11,139.0000 | 13,333,000 | 5.20% | 0.00% |
| Oct. 2, 2025 | Meyrath Hugues | President & CEO | S | Common Stock | 2975 | $10.86 | 24,700.0000 | 13,333,000 | 10.75% | 0.02% |
| Oct. 1, 2025 | Nash Laura A. | Chief Accounting Officer | A | Common Stock | 500 | $0.00 | 11,868.0000 | 13,333,000 | 4.40% | 0.00% |
| Oct. 1, 2025 | Nash Laura A. | Chief Accounting Officer | S | Common Stock | 118 | $9.91 | 11,750.0000 | 13,333,000 | 0.99% | 0.00% |
| Sept. 12, 2025 | Nash Laura A. | Chief Accounting Officer | S | Common Stock | 284 | $7.40 | 11,368.0000 | 13,319,000 | 2.44% | 0.00% |
| May 1, 2025 | FICHTHORN JOHN | Director | A | Common Stock | 4405 | $0.00 | 15,271.0000 | 6,962,000 | 40.54% | 0.06% |
| April 21, 2025 | Lerner James J | President & CEO | A | Common Stock | 5828 | $0.00 | 113,632.0000 | 6,962,000 | 5.41% | 0.08% |
| April 21, 2025 | Lerner James J | President & CEO | S | Common Stock | 2784 | $9.65 | 110,848.0000 | 6,962,000 | 2.45% | 0.04% |
| April 21, 2025 | Cabrera Brian E | SVP Chief Admin Ofcr & Secy | A | Common Stock | 1874 | $0.00 | 29,814.0000 | 6,962,000 | 6.71% | 0.03% |
| April 21, 2025 | Cabrera Brian E | SVP Chief Admin Ofcr & Secy | S | Common Stock | 1078 | $9.65 | 28,736.0000 | 6,962,000 | 3.62% | 0.02% |
| April 21, 2025 | Moorehead Lewis W. | Chief Accounting Officer | A | Common Stock | 333 | $0.00 | 25,150.0000 | 6,962,000 | 1.34% | 0.00% |
| April 21, 2025 | Moorehead Lewis W. | Chief Accounting Officer | S | Common Stock | 179 | $9.65 | 24,971.0000 | 6,962,000 | 0.71% | 0.00% |
| April 15, 2025 | PACIFIC INVESTMENT MANAGEMENT CO LLC | Not found | S | Common Stock | 962127 | $10.25 | 0.0000 | 6,962,000 | 100.00% | 13.82% |
| April 2, 2025 | Nash Laura A. | Chief Accounting Officer | S | Common Stock | 136 | $12.85 | 11,652.0000 | 6,962,000 | 1.15% | 0.00% |
| Feb. 3, 2025 | Gianella Kenneth P. | Chief Financial Officer | S | Common Stock | 1279 | $21.53 | 32,402.0000 | 5,307,000 | 3.80% | 0.02% |
| Nov. 8, 2024 | Cabrera Brian E | SVP Chief Admin Ofcr & Secy | S | Common Stock | 2118 | $4.43 | 30,227.0000 | 4,792,000 | 6.55% | 0.04% |
| Nov. 8, 2024 | Gianella Kenneth P. | Chief Financial Officer | S | Common Stock | 1332 | $4.43 | 35,168.0000 | 4,792,000 | 3.65% | 0.03% |
| Nov. 8, 2024 | Spanjaard Henk Jan | Chief Revenue Officer | S | Common Stock | 218 | $4.43 | 15,838.0000 | 4,792,000 | 1.36% | 0.00% |
| Nov. 8, 2024 | Lerner James J | President & CEO | S | Common Stock | 3681 | $4.43 | 110,315.0000 | 4,792,000 | 3.23% | 0.08% |
| Nov. 8, 2024 | Nash Laura A. | Chief Accounting Officer | S | Common Stock | 328 | $4.43 | 11,788.0000 | 4,792,000 | 2.71% | 0.01% |
| Jan. 16, 2025 | Gianella Kenneth P. | Chief Financial Officer | S | Common Stock | 1487 | $35.68 | 33,681.0000 | 5,307,000 | 4.23% | 0.03% |
| Jan. 16, 2025 | Cabrera Brian E | SVP Chief Admin Ofcr & Secy | S | Common Stock | 1996 | $35.68 | 27,940.0000 | 5,307,000 | 6.67% | 0.04% |
| Nov. 8, 2024 | Cabrera Brian E | SVP Chief Admin Ofcr & Secy | S | Common Stock | 291 | $4.45 | 29,936.0000 | 4,792,000 | 0.96% | 0.01% |
| Jan. 16, 2025 | Spanjaard Henk Jan | Chief Revenue Officer | S | Common Stock | 935 | $35.68 | 14,903.0000 | 5,307,000 | 5.90% | 0.02% |
| Jan. 16, 2025 | Lerner James J | President & CEO | S | Common Stock | 2511 | $35.68 | 107,804.0000 | 5,307,000 | 2.28% | 0.05% |
| Jan. 3, 2025 | PACIFIC INVESTMENT MANAGEMENT CO LLC | Not found | S | Common Stock | 1889 | $61.52 | 760,650.0000 | 5,307,000 | 0.25% | 0.04% |
| Jan. 3, 2025 | PACIFIC INVESTMENT MANAGEMENT CO LLC | Not found | X | Common Stock | 114155 | $54.20 | 626,572.0000 | 5,307,000 | 22.28% | 2.15% |
| Jan. 3, 2025 | PACIFIC INVESTMENT MANAGEMENT CO LLC | Not found | S | Common Stock | 100578 | $61.52 | 525,994.0000 | 5,307,000 | 16.05% | 1.90% |
| Jan. 3, 2025 | PACIFIC INVESTMENT MANAGEMENT CO LLC | Not found | X | Common Stock | 219970 | $26.00 | 745,964.0000 | 5,307,000 | 41.82% | 4.14% |
| Jan. 3, 2025 | PACIFIC INVESTMENT MANAGEMENT CO LLC | Not found | S | Common Stock | 92970 | $61.52 | 652,994.0000 | 5,307,000 | 12.46% | 1.75% |
| Jan. 3, 2025 | PACIFIC INVESTMENT MANAGEMENT CO LLC | Not found | X | Common Stock | 63435 | $6.20 | 716,429.0000 | 5,307,000 | 9.71% | 1.20% |
| Jan. 3, 2025 | PACIFIC INVESTMENT MANAGEMENT CO LLC | Not found | S | Common Stock | 6393 | $61.52 | 710,036.0000 | 5,307,000 | 0.89% | 0.12% |
| Jan. 3, 2025 | PACIFIC INVESTMENT MANAGEMENT CO LLC | Not found | X | Common Stock | 37536 | $6.20 | 747,572.0000 | 5,307,000 | 5.29% | 0.71% |
| Jan. 3, 2025 | PACIFIC INVESTMENT MANAGEMENT CO LLC | Not found | S | Common Stock | 3783 | $61.52 | 743,789.0000 | 5,307,000 | 0.51% | 0.07% |
| Jan. 3, 2025 | PACIFIC INVESTMENT MANAGEMENT CO LLC | Not found | X | Common Stock | 18750 | $6.20 | 762,539.0000 | 5,307,000 | 2.52% | 0.35% |
| Jan. 3, 2025 | PACIFIC INVESTMENT MANAGEMENT CO LLC | Not found | X | Common Stock | 224059 | $6.20 | 984,709.0000 | 5,307,000 | 29.46% | 4.22% |
| Jan. 3, 2025 | PACIFIC INVESTMENT MANAGEMENT CO LLC | Not found | S | Common Stock | 22582 | $61.52 | 962,127.0000 | 5,307,000 | 2.29% | 0.43% |
| Jan. 3, 2025 | PACIFIC INVESTMENT MANAGEMENT CO LLC | Not found | X | Warrants (right to buy) | 114155 | $0.00 | 0.0000 | 5,307,000 | 100.00% | 2.15% |
| Jan. 3, 2025 | PACIFIC INVESTMENT MANAGEMENT CO LLC | Not found | X | Warrants (right to buy) | 219970 | $0.00 | 0.0000 | 5,307,000 | 100.00% | 4.14% |
| Jan. 3, 2025 | PACIFIC INVESTMENT MANAGEMENT CO LLC | Not found | X | Warrants (right to buy) | 63435 | $0.00 | 0.0000 | 5,307,000 | 100.00% | 1.20% |
| Jan. 3, 2025 | PACIFIC INVESTMENT MANAGEMENT CO LLC | Not found | X | Warrants (right to buy) | 37536 | $0.00 | 0.0000 | 5,307,000 | 100.00% | 0.71% |
| Jan. 3, 2025 | PACIFIC INVESTMENT MANAGEMENT CO LLC | Not found | X | Warrants (right to buy) | 18750 | $0.00 | 0.0000 | 5,307,000 | 100.00% | 0.35% |
| Jan. 3, 2025 | PACIFIC INVESTMENT MANAGEMENT CO LLC | Not found | X | Warrants (right to buy) | 224059 | $0.00 | 0.0000 | 5,307,000 | 100.00% | 4.22% |
| Nov. 8, 2024 | Nash Laura A. | Chief Accounting Officer | S | Common Stock | 685 | $4.43 | 11,431.0000 | 4,792,000 | 5.65% | 0.01% |
| Nov. 8, 2024 | Lerner James J | President & CEO | S | Common Stock | 6505 | $4.43 | 107,491.0000 | 4,792,000 | 5.71% | 0.14% |
| Nov. 8, 2024 | Gianella Kenneth P. | Chief Financial Officer | S | Common Stock | 2590 | $4.43 | 33,910.0000 | 4,792,000 | 7.10% | 0.05% |
| Nov. 8, 2024 | Spanjaard Henk Jan | Chief Revenue Officer | S | Common Stock | 394 | $4.43 | 15,662.0000 | 4,792,000 | 2.45% | 0.01% |
| Nov. 8, 2024 | Cabrera Brian E | SVP Chief Admin Ofcr & Secy | S | Common Stock | 5387 | $4.43 | 26,958.0000 | 4,792,000 | 16.65% | 0.11% |
| Nov. 1, 2024 | Tracy John R. | Director | A | Common Stock | 3000 | $0.00 | 15,000.0000 | 4,792,000 | 25.00% | 0.06% |
| Oct. 1, 2024 | Cabrera Brian E | SVP Chief Admin Ofcr & Secy | A | Common Stock | 13750 | $0.00 | 385,637.0000 | 4,792,000 | 3.70% | 0.29% |
| Oct. 1, 2024 | Lerner James J | President & CEO | A | Common Stock | 18750 | $0.00 | 1,923,658.0000 | 4,792,000 | 0.98% | 0.39% |
| Oct. 1, 2024 | Tracy John R. | Director | A | Common Stock | 12000 | $0.00 | 12,000.0000 | 4,792,000 | 9999.99% | 0.25% |
| Oct. 1, 2024 | Spanjaard Henk Jan | Chief Revenue Officer | A | Common Stock | 10000 | $0.00 | 131,112.0000 | 4,792,000 | 8.26% | 0.21% |
| Oct. 1, 2024 | Gianella Kenneth P. | Chief Financial Officer | A | Common Stock | 17750 | $0.00 | 392,750.0000 | 4,792,000 | 4.73% | 0.37% |
| Oct. 1, 2024 | Nash Laura A. | Chief Accounting Officer | A | Common Stock | 7500 | $0.00 | 99,804.0000 | 4,792,000 | 8.13% | 0.16% |
| Oct. 1, 2024 | Jaworksi Don | Director | A | Common Stock | 12000 | $0.00 | 85,498.0000 | 4,792,000 | 16.33% | 0.25% |
| Oct. 1, 2024 | Jaworksi Don | Director | A | Common Stock | 12000 | $0.00 | 97,498.0000 | 4,792,000 | 14.04% | 0.25% |
| Oct. 1, 2024 | White Yue Zhou | Director | A | Common Stock | 12000 | $0.00 | 114,766.0000 | 4,792,000 | 11.68% | 0.25% |
| Oct. 1, 2024 | White Yue Zhou | Director | A | Common Stock | 12000 | $0.00 | 126,766.0000 | 4,792,000 | 10.46% | 0.25% |
| Oct. 1, 2024 | Meyrath Hugues | Director | A | Common Stock | 12000 | $0.00 | 85,498.0000 | 4,792,000 | 16.33% | 0.25% |
| Oct. 1, 2024 | Meyrath Hugues | Director | A | Common Stock | 12000 | $0.00 | 97,498.0000 | 4,792,000 | 14.04% | 0.25% |
| Aug. 13, 2024 | PACIFIC INVESTMENT MANAGEMENT CO LLC | Not found | A | Warrants (right to buy) | 4481169 | $0.00 | 4,481,169.0000 | 4,792,000 | 9999.99% | 93.51% |
| July 11, 2024 | PACIFIC INVESTMENT MANAGEMENT CO LLC | Not found | A | Warrants (right to buy) | 375000 | $0.00 | 375,000.0000 | 4,792,000 | 9999.99% | 7.83% |
| May 24, 2024 | PACIFIC INVESTMENT MANAGEMENT CO LLC | Not found | A | Warrants (right to buy) | 750000 | $0.00 | 750,000.0000 | 4,792,000 | 9999.99% | 15.65% |
| Jan. 1, 2024 | Gianella Kenneth P. | Chief Financial Officer | A | Common Stock | 150000 | $0.00 | 375,000.0000 | 4,678,000 | 66.67% | 3.21% |
| Jan. 1, 2024 | Cabrera Brian E | SVP Chief Admin Ofcr & Secy | A | Common Stock | 150000 | $0.00 | 371,887.0000 | 4,678,000 | 67.60% | 3.21% |
| Jan. 1, 2024 | Spanjaard Henk Jan | Chief Revenue Officer | A | Common Stock | 75000 | $0.00 | 121,112.0000 | 4,678,000 | 162.65% | 1.60% |
| Jan. 1, 2024 | Lerner James J | President & CEO | A | Common Stock | 200000 | $0.00 | 1,904,908.0000 | 4,678,000 | 11.73% | 4.28% |
| April 1, 2024 | Nash Laura A. | Chief Accounting Officer | A | Common Stock | 25000 | $0.00 | 92,304.0000 | 4,792,000 | 37.14% | 0.52% |
| Nov. 2, 2023 | Cabrera Brian E | SVP Chief Admin Ofcr & Secy | S | Common Stock | 5543 | $0.47 | 221,887.0000 | 4,678,000 | 2.44% | 0.12% |
| Oct. 10, 2023 | Lerner James J | President & CEO | S | Common Stock | 36045 | $0.60 | 1,704,908.0000 | 4,678,000 | 2.07% | 0.77% |
| Oct. 4, 2023 | Cabrera Brian E | SVP Chief Admin Ofcr & Secy | S | Common Stock | 942 | $0.59 | 227,430.0000 | 4,678,000 | 0.41% | 0.02% |
| Oct. 4, 2023 | Nash Laura A. | Chief Accounting Officer | S | Common Stock | 888 | $0.59 | 67,304.0000 | 4,678,000 | 1.30% | 0.02% |
| Sept. 5, 2023 | Hurley John | Chief Revenue Officer | S | Common Stock | 42662 | $0.62 | 341,519.0000 | 4,678,000 | 11.10% | 0.91% |
| Sept. 1, 2023 | Gianella Kenneth P. | Chief Financial Officer | A | Common Stock | 50000 | $0.00 | 225,000.0000 | 4,678,000 | 28.57% | 1.07% |
| Sept. 1, 2023 | Gianella Kenneth P. | Chief Financial Officer | A | Performance-Based Restricted Stock Units | 25000 | $0.00 | 0.0000 | 4,678,000 | 0.00% | 0.53% |
| July 10, 2023 | Lerner James J | President & CEO | S | Common Stock | 158893 | $1.07 | 1,740,953.0000 | 4,678,000 | 8.36% | 3.40% |
| July 10, 2023 | Nash Laura A. | Chief Accounting Officer | S | Common Stock | 3600 | $1.07 | 68,192.0000 | 4,678,000 | 5.01% | 0.08% |
| July 10, 2023 | Hurley John | Chief Revenue Officer | S | Common Stock | 22681 | $1.07 | 384,181.0000 | 4,678,000 | 5.57% | 0.48% |
| July 10, 2023 | Cabrera Brian E | SVP Chief Admin Ofcr & Secy | S | Common Stock | 15674 | $1.07 | 228,372.0000 | 4,678,000 | 6.42% | 0.34% |
| July 1, 2023 | Nash Laura A. | Chief Accounting Officer | A | Performance-Based Restricted Stock Units | 50000 | $0.00 | 50,000.0000 | 4,678,000 | 9999.99% | 1.07% |
| July 1, 2023 | Nash Laura A. | Chief Accounting Officer | A | Common Stock | 50000 | $0.00 | 71,792.0000 | 4,678,000 | 229.44% | 1.07% |
| June 1, 2023 | PACIFIC INVESTMENT MANAGEMENT CO LLC | TenPercentOwner | A | Warrants (right to buy) | 1250000 | $0.00 | 1,250,000.0000 | 4,678,000 | 9999.99% | 26.72% |
| May 2, 2023 | Cabrera Brian E | SVP Chief Admin Ofcr & Secy | S | Common Stock | 30915 | $0.95 | 244,046.0000 | 4,678,000 | 11.24% | 0.66% |
| Feb. 1, 2023 | Gianella Kenneth P. | Chief Financial Officer | A | Performance-Based Restricted Stock Units | 24975 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Feb. 1, 2023 | Gianella Kenneth P. | Chief Financial Officer | A | Common Stock | 175000 | $0.00 | 175,000.0000 | 0 | 9999.99% | 0.00% |