Insider Trading for DSY
View recent insider trading activity including purchases, sales, and awards. Insider trading can provide insights into how executives view their company's prospects.
Insider Trading Summary
Shares Acquired
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Shares Disposed
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Net Position
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Recent Activity (30 Days)
No insider transactions in the past 30 days.
Quarterly Activity (3 Months)
No insider transactions in the past 3 months.
Key Insider Activity: Dec 7, 2010 to Mar 18, 2026
VESTERGAARD STEVE
ExecutiveChief Executive Officer
+218.3K shares
6 transactions
Vandenberg Fred
ExecutiveCorporate Officer
+118.3K shares
5 transactions
LANGS LAWRENCE JEFFREY
DirectorDirector
+65.2K shares
1 transactions
Kumagai Yoshitaro
DirectorDirector
+9.0K shares
1 transactions
Wang Qiang
DirectorDirector:
0 shares
1 transactions
Transaction Details
| Date | Insider | Role | Transaction | Shares | Price | Value | Owned After | SEC Filing |
|---|---|---|---|---|---|---|---|---|
| Mar 18, 2026 | Wang Qiang | DDirector: | Unknown | 0 | $0.00 | $0.00 | 0 | View |
| Mar 18, 2026 | Zhu Wen Quan | EChief Executive Officer | Unknown | 0 | $0.00 | $0.00 | 3.5M | View |
| Mar 18, 2026 | Wan Mun Wah | DDirector: | Unknown | 0 | $0.00 | $0.00 | 0 | View |
Mar 18, 2026 | Locked | — | — | — | — | — | — | — |
Mar 18, 2026 | Locked | — | — | — | — | — | — | — |
Mar 18, 2026 | Locked | — | — | — | — | — | — | — |
Mar 18, 2026 | Locked | — | — | — | — | — | — | — |
Jan 31, 2013 | Locked | — | — | — | — | — | — | — |
Jan 31, 2013 | Locked | — | — | — | — | — | — | — |
Jan 31, 2013 | Locked | — | — | — | — | — | — | — |
Jan 31, 2013 | Locked | — | — | — | — | — | — | — |
Aug 31, 2012 | Locked | — | — | — | — | — | — | — |
Apr 15, 2011 | Locked | — | — | — | — | — | — | — |
Apr 15, 2011 | Locked | — | — | — | — | — | — | — |
Apr 15, 2011 | Locked | — | — | — | — | — | — | — |
Apr 15, 2011 | Locked | — | — | — | — | — | — | — |
Apr 15, 2011 | Locked | — | — | — | — | — | — | — |
Apr 11, 2011 | Locked | — | — | — | — | — | — | — |
Apr 7, 2011 | Locked | — | — | — | — | — | — | — |
Dec 7, 2010 | Locked | — | — | — | — | — | — | — |
Click "View" in the SEC Filing column to access the detailed SEC form submission for each transaction.
Executive Activity:
Executives have been net buyers of DSY stock, which is typically a strong positive signal.

