Chi-foon Chan is CEO & President at SYNOPSYS INC (SNPS). They have made 40 open-market trades across 1 company since 2006, most recently 2026-07-01.
CIK 0001249834
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
0 open-market purchases, against 40 sales. Too few scored purchases to measure a record yet.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| SNPS | SELL | 2022-02-18 | 2022-02-23 | $289.25 | $7.3M | +5.7% | +14.1% | +6.0% |
| SNPS | SELL | 2021-12-03 | 2021-12-07 | $343.13 | $6.9M | -2.6% | -3.5% | -17.3% |
| SNPS | SELL | 2021-08-20 | 2021-08-24 | $314.98 | $175.7M | +3.8% | -0.5% | +7.3% |
| SNPS | SELL | 2021-05-21 | 2021-05-24 | $242.96 | $3.4M | +2.4% | +7.6% | +28.5% |
| SNPS | SELL | 2021-02-19 | 2021-02-22 | $269.37 | $3.4M | -8.7% | -7.4% | -1.3% |
| SNPS | SELL | 2020-12-04 | 2020-12-08 | $237.50 | $5.7M | +6.9% | +8.5% | -8.4% |
| SNPS | SELL | 2020-08-21 | 2020-08-24 | $211.79 | $84.3M | +1.0% | -7.0% | +1.5% |
| SNPS | SELL | 2020-05-22 | 2020-05-26 | $170.01 | $1.9M | +8.1% | +12.0% | +26.3% |
| SNPS | SELL | 2020-02-21 | 2020-02-25 | $149.74 | $63.6M | -3.7% | -10.5% | +17.9% |
| SNPS | SELL | 2019-12-06 | 2019-12-10 | $134.17 | $714K | +5.8% | +12.4% | -3.4% |
| SNPS | SELL | 2019-12-06 | 2019-12-10 | $134.17 | $1.4M | +5.8% | +12.4% | -3.4% |
| SNPS | SELL | 2019-08-23 | 2019-08-26 | $137.14 | $1.3M | +6.0% | +1.5% | +0.7% |
| SNPS | SELL | 2019-05-24 | 2019-05-28 | $117.15 | $1.2M | +6.0% | +7.5% | +16.9% |
| SNPS | SELL | 2019-02-22 | 2019-02-26 | $102.20 | $8.7M | +1.0% | +11.5% | +15.4% |
| SNPS | SELL | 2018-12-07 | 2018-12-11 | $88.28 | $638K | -11.1% | -3.4% | +15.9% |
| SNPS | SELL | 2018-08-24 | 2018-08-27 | $101.85 | $735K | +0.0% | -3.9% | -13.5% |
| SNPS | SELL | 2018-05-25 | 2018-05-29 | $88.08 | $7.5M | +2.7% | -3.5% | +15.9% |
| SNPS | SELL | 2018-03-13 | 2018-03-15 | $90.06 | $140K | -5.9% | -4.1% | +2.7% |
| SNPS | SELL | 2018-02-23 | 2018-02-26 | $84.77 | $612K | +3.2% | -4.2% | +2.2% |
| SNPS | SELL | 2017-12-01 | 2017-12-04 | $89.78 | $337K | +0.6% | -0.5% | -1.6% |
| SNPS | SELL | 2017-08-18 | 2017-08-21 | $77.50 | $291K | +2.8% | +3.2% | +13.7% |
| SNPS | SELL | 2017-05-19 | 2017-05-23 | $70.96 | $266K | +3.8% | +2.2% | +6.8% |
| SNPS | SELL | 2017-02-17 | 2017-02-21 | $70.47 | $3.1M | +0.3% | +0.6% | +2.0% |
| SNPS | SELL | 2016-12-02 | 2016-12-06 | $57.09 | $114K | +3.9% | +3.3% | +22.3% |
| SNPS | SELL | 2016-08-19 | 2016-08-22 | $58.23 | $116K | +0.9% | +0.6% | +4.6% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.