QUANTUM CORP /DE/ ($QMCO) Insider Transactions

Last updated: 2026-04-03 21:06 UTC | Total transactions: 107

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).

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View all SEC Filings for QUANTUM CORP /DE/ (QMCO).

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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%