// company-profile
Quantum Corp /de/
QMCO// activity-summary
Recent insider activity is bullish. Over the last 30 days, 2 insiders purchased shares (net $32.0M). Buying was led by Dialectic Technology SPV LLC.
// 90-day insight
Over the last 90 days, Quantum Corp /de/ insiders bought $32.0M (5 transactions) and sold $593 (1 transaction).
- Most active insider: Dialectic Technology SPV LLC with 4 transactions totaling $73.3M.
- Largest single purchase: $16.0M by Dialectic Technology SPV LLC on Jun 4, 2026.
Activity skews bullish — buys outpace sales.
Institutional Ownership
Top 13F-HR holders of Quantum Corp /de/ as of 2026-03-31
Data source: SEC Form 13F-HR filings. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →
Insider Transactions
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Jun 4, 2026 | Dialectic Technology SPV LLC | QMCO | Award | 3,083,975 | $5.19 | $16.02M |
| Jun 4, 2026 | Dialectic Technology SPV LLC | QMCO | C | 0 | — | — |
| Jun 4, 2026 | FICHTHORN JOHN | QMCO | C | 57,241,228 | — | — |
| Jun 4, 2026 | FICHTHORN JOHN | QMCO | Award | 3,083,975 | $5.19 | $16.02M |
| Jun 4, 2026 | FICHTHORN JOHN | QMCO | C | 11,020,645 | $5.19 | $57.24M |
45 more transactions hidden
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