QUANTUM CORP /DE/ (DSS) is a publicly traded company in the Unknown sector. Across all available filings, 31 corporate insiders have executed 153 transactions totaling $80.1M, demonstrating a bullish sentiment with $79.5M in net insider flow. The most recent transaction on Aug 28, 2025 involved a sale of 130,679 shares valued at $176.4K.
No significant insider buying has been recorded for DSS in the recent period.
No significant insider selling has been recorded for DSS in the recent period.
Based on recent SEC filings, insider sentiment for DSS is bullish with an Insider Alignment Score of 100/100 and a net flow of $79.5M. Insiders are accumulating shares, which historically signals confidence in the company's future performance.
Insider trading at QUANTUM CORP /DE/ (DSS) refers to stock transactions made by corporate insiders—executives, directors, and beneficial owners holding more than 10% of the company's shares. These individuals have access to material non-public information and are required by law to report their trades to the SEC within two business days. Currently, 31 insiders are actively trading DSS stock, having executed 153 transactions in the past 90 days. The most active insider is Thomas S. Buchsbaum (Executive), who has made 14 transactions totaling $55.2M.
Get notified when executives and directors at DSS file new Form 4 transactions
Date | Insider | Title | Type | Shares | Price | Value | Flags |
|---|---|---|---|---|---|---|---|
| Aug 28, 2025 | Fai Ambrose Chan Heng | Executive | Sale | 130,679 | $1.35 | $176.4K | |
| Dec 29, 2023 | Wai Leung Wu William | Executive | Sale | 150,000 | $0.13 | $19.5K | |
| Dec 29, 2023 | Wai Leung Wu William | Executive | Sale | 1,020 | $0.13 | $133 | |
| Dec 28, 2023 | Fai Ambrose Chan Heng | Executive | Purchase | 672,173 | $0.15 | $100.8K | |
| Apr 10, 2023 | D. Heuszel Frank | Executive | Award | 1,247,078 | $0.22 | $274.4K | |
| Dec 13, 2022 | Fai Ambrose Chan Heng | Executive | Purchase | 334,921 | $0.23 | $77.0K | |
| Dec 9, 2022 | Fai Ambrose Chan Heng | Executive | Purchase | 51,385 | $0.19 | $9.8K | |
| Jul 12, 2022 | Ltd Alset International | Executive | Other | 21,366,177 | $N/A | $0 | |
| Jul 7, 2022 | Fai Ambrose Chan Heng | Executive | Purchase | 17,570,948 | $N/A | $0 | |
| Jun 17, 2022 | Wai Leung Wu William | Executive | Purchase | 5,000 | $0.38 | $1.9K | |
| Jun 16, 2022 | Wai Leung Wu William | Executive | Purchase | 5,000 | $0.38 | $1.9K | |
| Jun 10, 2022 | Wai Leung Wu William | Executive | Purchase | 27,000 | $0.41 | $11.1K | |
| Jun 9, 2022 | Wai Leung Wu William | Executive | Purchase | 72,600 | $0.42 | $30.5K | |
| Jun 8, 2022 | Wai Leung Wu William | Executive | Purchase | 23,651 | $0.41 | $9.7K | |
| Jun 7, 2022 | Wai Leung Wu William | Executive | Purchase | 16,749 | $0.39 | $6.5K |
| TYPE | COUNT | VALUE | % |
|---|---|---|---|
Purchase(P) | 86 | $79.8M | 89.4% |
Award(A) | 30 | $4.3M | 4.8% |
Other(J) | 13 | $3.4M | 3.8% |
Conversion(C) | 4 | $500.0K | 0.6% |
Disposition(D) | 1 | $396.2K | 0.4% |
Sale(S) | 7 | $303.2K | 0.3% |
Exercise(M) | 1 | $252.8K | 0.3% |
Payment(F) | 10 | $221.9K | 0.2% |
Exercise (Options)(X) | 1 | $160.0K | 0.2% |
Insiders at QUANTUM CORP /DE/ are accumulating shares at an accelerated pace. With 31 insiders making 153 transactions totaling $79.8M in purchases versus $303.2K in sales, the net buying activity of $79.5M signals strong executive confidence. Thomas S. Buchsbaum (Executive) leads the buying activity with $55.2M in transactions across all time.