QMCO · Insider Trading

Quantum Corporation

Every open-market purchase and sale reported by QMCO officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.

Form 4 Filings
50
most recent
Open-Market Buys
0
code P
Sales
18
code S
Reporting Insiders
17
current holders
QMCO — Recent Form 4 Transactions (latest 2026-10-05)
FiledInsiderRole TypeSharesValue
2026-10-05 Tony J Blevins Director A +12,000 —
2026-10-05 Anthony Craythorne Chief Revenue Officer A +200,000 deriv. —
2026-10-05 Don Jaworksi Director A +12,000 —
2026-10-05 Hiral Patel Chief Accounting Officer A +50,000 —
2026-10-05 Yue Zhou White Director A +12,000 —
2026-10-05 John R. Tracy Director A +12,000 —
2026-10-05 John Fichthorn Director A +12,000 —
2026-10-05 Hugues Meyrath President & CEO A +500,000 deriv. —
2026-10-05 James C Clancy Chief Operating Officer A +150,000 —
2026-08-05 Anthony Craythorne Chief Revenue Officer Sell −1,478 −$15.86K
2026-07-07 Hugues Meyrath President & CEO Sell −6,232 −$65.50K
2026-07-07 Laura A. Nash Chief Accounting Officer Sell −260 −$2.73K
2026-06-08 John Fichthorn Director MIXED +14,104,620 +$73.26M
2026-06-08 Dialectic Technology SPV LLC 10%+ Owner MIXED +14,104,620 +$73.26M
2026-04-03 Anthony Craythorne Chief Revenue Officer A +148,500 deriv. —
2026-04-03 Hugues Meyrath President & CEO A +850,000 deriv. —
2026-04-03 Laura A. Nash Chief Accounting Officer Sell −109 −$593
2026-03-04 William Hillis White Chief Financial Officer A +25,000 —
2026-01-05 Yue Zhou White Director A +12,000 —
2026-01-05 Don Jaworksi Director A +12,000 —
2026-01-05 Anthony Craythorne Chief Revenue Officer A +15,000 —
2026-01-05 James C Clancy Director A +12,000 —
2026-01-05 John Fichthorn Director A +12,000 —
2026-01-05 Hugues Meyrath President & CEO A +62,500 —
2026-01-05 Tony J Blevins Director A +12,000 —
2026-01-05 John R. Tracy Director A +12,000 —
2025-12-29 John Fichthorn Director J — —
2025-12-23 Dialectic Technology SPV LLC 10%+ Owner J — —
2025-11-04 James C Clancy Director A +1,000 —
2025-11-04 Tony J Blevins Director A +1,000 —
2025-11-04 Hugues Meyrath President & CEO A +37,500 —
2025-10-03 Hugues Meyrath President & CEO Sell −2,975 −$32.31K
2025-10-03 Laura A. Nash Chief Accounting Officer MIXED −229 −$7.80K
2025-09-17 Laura A. Nash Chief Accounting Officer Sell −284 −$2.10K
2025-05-05 John Fichthorn Director A +4,405 —
2025-04-23 Brian E Cabrera SVP Chief Admin Ofcr & Secy MIXED +796 −$10.40K
2025-04-23 James J Lerner President & CEO MIXED +3,044 −$26.86K
2025-04-23 Lewis W. Moorehead Chief Accounting Officer MIXED +154 −$1.73K
2025-04-17 PACIFIC INVESTMENT MANAGEMENT CO LLC 10%+ Owner Sell −962,127 −$9.86M
2025-04-04 Laura A. Nash Chief Accounting Officer Sell −136 −$1.75K
2025-02-05 Kenneth P. Gianella Chief Financial Officer Sell −1,279 −$27.54K
2025-01-17 Henk Jan Spanjaard Chief Revenue Officer Sell −218 −$966
2025-01-17 Laura A. Nash Chief Accounting Officer Sell −328 −$1.45K
2025-01-17 Henk Jan Spanjaard Chief Revenue Officer Sell −935 −$33.36K
2025-01-17 Kenneth P. Gianella Chief Financial Officer Sell −1,332 −$5.90K
2025-01-17 James J Lerner President & CEO Sell −2,511 −$89.59K
2025-01-17 James J Lerner President & CEO Sell −3,681 −$16.31K
2025-01-17 Kenneth P. Gianella Chief Financial Officer Sell −1,487 −$53.06K
2025-01-17 Brian E Cabrera SVP Chief Admin Ofcr & Secy Sell −2,287 −$72.51K
2025-01-17 Brian E Cabrera SVP Chief Admin Ofcr & Secy Sell −2,118 −$9.38K
QMCO — Current Insider Holders
InsiderRole Shares HeldValue
John Fichthorn Director 14,145,516 $216.99M
Dialectic Technology SPV LLC 10%+ Owner 14,104,620 $216.36M
James C Clancy Chief Operating Officer 163,000 $2.50M
Hugues Meyrath President & CEO 118,468 $1.82M
James J Lerner President & CEO 110,848 $1.70M
Yue Zhou White Director 53,139 $815.15K
Don Jaworksi Director 51,675 $792.69K
Hiral Patel Chief Accounting Officer 50,000 $767.00K
John R. Tracy Director 39,000 $598.26K
Kenneth P. Gianella Chief Financial Officer 32,402 $497.05K
Brian E Cabrera SVP Chief Admin Ofcr & Secy 29,814 $457.35K
Tony J Blevins Director 25,000 $383.50K
William Hillis White Chief Financial Officer 25,000 $383.50K
Lewis W. Moorehead Chief Accounting Officer 24,971 $383.06K
Henk Jan Spanjaard Chief Revenue Officer 14,903 $228.61K
Anthony Craythorne Chief Revenue Officer 13,522 $207.43K
Laura A. Nash Chief Accounting Officer 10,770 $165.21K
QMCO Insider Trading FAQ
Who are the insiders at QMCO?
17 officers, directors and 10%+ beneficial owners currently report holdings in QMCO via SEC Form 4.
Are QMCO insiders buying or selling?
Across the 50 most recent Form 4 filings for QMCO, 0 were open-market purchases (code P) and 18 were sales (code S). Sales frequently reflect scheduled 10b5-1 plans or tax withholding rather than a view on the stock.
How current is QMCO insider data?
Form 4 must be filed within two business days of the transaction, so this is close to real time. The most recent QMCO filing is dated 2026-10-05.
How to read Form 4 activity

Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.

Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.

Full filing history and per-insider positions are on the QMCO quote page; the site-wide leaderboard is on the insider transactions hub.

Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.