InsiderTape plots every Form 4 on the price chart and flags cluster buys, CEO conviction, and first buys in years the moment they file. Start a free 7-day trial, cancel anytime.
START FREE TRIAL →Shuo Zhang, Director, is a corporate insider tracked by InsiderTape across 2 companies. The public record shows 8 open-market SEC Form 4 transactions: 0 purchases worth $0 and 8 sales worth $1.3M, reported from Sep 8, 21 to Dec 15, 25. Over this period they have been a net seller.
| Date | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|
| Dec 15, 25 | GDYNGRID DYNAMICS HOLDINGS, INC. | SELL | 3.0K | $9.75 | $29K |
| Jun 3, 24 | GDYNGRID DYNAMICS HOLDINGS, INC. | SELL | 4.0K | $9.34 | $37K |
| Jun 3, 24 | PDFSPDF SOLUTIONS INC | SELL | 5.5K | $34.66 | $191K |
| Aug 18, 23 | PDFSPDF SOLUTIONS INC | SELL | 3.0K | $33.75 | $103K |
| Nov 16, 22 | PDFSPDF SOLUTIONS INC | SELL | 2.0K | $29.84 | $60K |
| Mar 15, 22 | PDFSPDF SOLUTIONS INC | SELL | 11.0K | $25.50 | $281K |
| Nov 29, 21 | GDYNGRID DYNAMICS HOLDINGS, INC. | SELL | 7.0K | $39.38 | $276K |
| Sep 8, 21 | GDYNGRID DYNAMICS HOLDINGS, INC. | SELL | 10.0K | $31.63 | $316K |