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 →Michael B Gustafson, Director, is a corporate insider tracked by InsiderTape across 2 companies. The public record shows 11 open-market SEC Form 4 transactions: 2 purchases worth $238K and 9 sales worth $1.2M, reported from Nov 12, 21 to May 13, 25. Over this period they have been a net seller.
| Date | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|
| May 13, 25 | PDFSPDF SOLUTIONS INC | BUY | 7.5K | $19.45 | $146K |
| Feb 24, 25 | PDFSPDF SOLUTIONS INC | BUY | 4.0K | $23.06 | $92K |
| Dec 13, 23 | PDFSPDF SOLUTIONS INC | SELL | 4.9K | $30.86 | $151K |
| Dec 12, 23 | PDFSPDF SOLUTIONS INC | SELL | 867 | $31.29 | $27K |
| Feb 28, 23 | PDFSPDF SOLUTIONS INC | SELL | 13.3K | $37.26 | $496K |
| Nov 16, 22 | PDFSPDF SOLUTIONS INC | SELL | 2.5K | $30.05 | $75K |
| Nov 15, 22 | PDFSPDF SOLUTIONS INC | SELL | 2.5K | $29.79 | $74K |
| Aug 18, 22 | MRAMEVERSPIN TECHNOLOGIES INC | SELL | 11.4K | $7.63 | $87K |
| Aug 17, 22 | MRAMEVERSPIN TECHNOLOGIES INC | SELL | 4.1K | $8.41 | $31K |
| Nov 17, 21 | MRAMEVERSPIN TECHNOLOGIES INC | SELL | 14.3K | $12.70 | $181K |
| Nov 12, 21 | PDFSPDF SOLUTIONS INC | SELL | 3.0K | $33.00 | $99K |