QUANTUM CORP /DE/ - QMCO

Insiders (Form 4) · last 180 days · showing up to 200 transactions · Form 144 is shown in the SEC filings tab · Updating…
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Transaction codes: P = Open-market purchase · S = Open-market sale · A = Grant/award · M = Exercise/conversion of derivative · G = Gift · F = Tax withholding · J = Other · A/D: A = Acquired (buy/receive) · D = Disposed (sell/give)
Filed Owner Title Code A/D Shares Price Value Shares after SEC
Oct 05, 2026 — A A 12,000.0 0.0 0.0 53,139.0 View
Oct 05, 2026 — A A 12,000.0 0.0 0.0 25,000.0 View
Oct 05, 2026 — A A 12,000.0 0.0 0.0 39,000.0 View
Oct 05, 2026 — A A 12,000.0 0.0 0.0 40,896.0 View
Oct 05, 2026 Chief Operating Officer A A 400,000.0 0.0 0.0 400,000.0 View
Oct 05, 2026 Chief Operating Officer A A 150,000.0 0.0 0.0 163,000.0 View
Oct 05, 2026 President & CEO A A 500,000.0 0.0 0.0 500,000.0 View
Oct 05, 2026 Chief Accounting Officer A A 50,000.0 0.0 0.0 50,000.0 View
Oct 05, 2026 — A A 12,000.0 0.0 0.0 51,675.0 View
Oct 05, 2026 Chief Revenue Officer A A 200,000.0 0.0 0.0 200,000.0 View
Aug 05, 2026 Chief Revenue Officer S D 1,478.0 10.7281 15,856.13 13,522.0 View
Jul 07, 2026 Chief Accounting Officer S D 260.0 10.51 2,732.6 10,770.0 View
Jul 07, 2026 President & CEO S D 6,232.0 10.51 65,498.32 118,468.0 View
Jun 08, 2026 — C D 57,241,228.0 — — 0.0 View
Jun 08, 2026 — J A 105,911.0 — — 105,911.0 View
Jun 08, 2026 — A A 3,083,975.0 5.194 16,018,166.15 14,104,620.0 View
Jun 08, 2026 — C A 11,020,645.0 5.194 57,241,230.13 11,020,645.0 View
Jun 08, 2026 — C D — — — 0.0 View
Jun 08, 2026 — J A 105,911.0 — — 105,911.0 View
Jun 08, 2026 — A A 3,083,975.0 5.194 16,018,166.15 14,104,620.0 View
Jun 08, 2026 — C A 11,020,645.0 5.194 57,241,230.13 11,020,645.0 View